U.S. patent application number 10/547939 was filed with the patent office on 2006-09-07 for humidity control device.
Invention is credited to Shuji Ikegami, Tomohiro Yabu.
Application Number | 20060196195 10/547939 |
Document ID | / |
Family ID | 32992934 |
Filed Date | 2006-09-07 |
United States Patent
Application |
20060196195 |
Kind Code |
A1 |
Ikegami; Shuji ; et
al. |
September 7, 2006 |
Humidity control device
Abstract
Provided is a refrigerant circuit (1) which includes a first
heat exchanger (3) and a second heat exchanger (5). The refrigerant
circuit (1), through which a refrigerant circulates, performs a
vapor compression refrigeration cycle. An adsorbent material is
supported on a surface of the first heat exchanger (3) as well as
on a surface of the second heat exchanger (5). The circulation of
refrigerant in the refrigerant circuit (1) and the distribution of
air are switched so that moisture present in a stream of air
flowing through the refrigerant evaporating heat exchanger (3, 5)
is adsorbed by the adsorbent material of the heat exchanger (3, 5)
and the stream of air thus converted into a stream of dehumidified
air is supplied indoors while, on the other hand, moisture desorbed
from the adsorbent material of the refrigerant condensing heat
exchanger (5, 3) is released to a stream of air flowing through the
heat exchanger (5, 3) whereby the adsorbent material of the heat
exchanger (5, 3) is regenerated. In addition, the circulation of
refrigerant in the refrigerant circuit (1) and the distribution of
air are switched so that moisture present in a stream of air
flowing through the refrigerant evaporating heat exchanger (3, 5)
is adsorbed by the adsorbent material of the heat exchanger (3, 5)
while, on the other hand, moisture desorbed from the adsorbent
material of the refrigerant condensing heat exchanger (5, 3) is
released to a stream of air flowing through the heat exchanger (5,
3) whereby the adsorbent material of the heat exchanger (5, 3) is
regenerated, and the stream of air thus converted into a stream of
humidified air is supplied indoors.
Inventors: |
Ikegami; Shuji; (Osaka,
JP) ; Yabu; Tomohiro; (Osaka, JP) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
32992934 |
Appl. No.: |
10/547939 |
Filed: |
March 9, 2004 |
PCT Filed: |
March 9, 2004 |
PCT NO: |
PCT/JP04/03051 |
371 Date: |
September 8, 2005 |
Current U.S.
Class: |
62/94 ; 62/271;
62/332 |
Current CPC
Class: |
F24F 2003/144 20130101;
F24F 3/1429 20130101; B01D 53/261 20130101; F24F 3/1411 20130101;
F24F 1/022 20130101 |
Class at
Publication: |
062/094 ;
062/271; 062/332 |
International
Class: |
F25D 17/06 20060101
F25D017/06; F25D 23/00 20060101 F25D023/00; F25B 25/00 20060101
F25B025/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 10, 2003 |
JP |
2003-063186 |
Oct 2, 2003 |
JP |
2003-344034 |
Claims
1. A humidity controller apparatus, provided with an adsorbent
material, for regulating the humidity of air by effecting moisture
adsorption onto the adsorbent material and moisture desorption from
the adsorbent material, wherein: a refrigerant circuit (1) is
provided which comprises a first heat exchanger (3) and a second
heat exchanger (5), which performs a vapor compression
refrigeration cycle by the circulation of a refrigerant
therethrough, and which alternately effects refrigerant
condensation and evaporation in said first and second heat
exchangers (3, 5); and the adsorbent material is supported on at
least a surface of said first heat exchanger (3).
2. The humidity controller apparatus of claim 1 comprising:
moisture absorbing means for switching refrigerant circulation in
said refrigerant circuit (1) and air distribution so that
refrigerant condensation takes place in said second heat exchanger
(5) while, simultaneously, refrigerant evaporation takes place in
said first heat exchanger (3), whereby moisture present in a stream
of air flowing through said first heat exchanger (3) is adsorbed by
the adsorbent material, and moisture releasing means for switching
refrigerant circulation in said refrigerant circuit (1) and air
distribution so that refrigerant condensation takes place in said
first heat exchanger (3) while, simultaneously, refrigerant
evaporation takes place in said second heat exchanger (5), whereby
the adsorbent material is regenerated by the release of moisture
therefrom to a stream of air flowing through said first heat
exchanger (3).
3. The humidity controller apparatus of claim 1, wherein: the
adsorbent material is supported on a surface of said first heat
exchanger (3) and a surface of said second heat exchanger (5); and
dehumidifier means (80) for switching refrigerant circulation in
said refrigerant circuit (1) and air distribution is provided so
that moisture in a stream of air flowing through a refrigerant
evaporating heat exchanger (3, 5) is adsorbed by the adsorbent
material of said refrigerant evaporating heat exchanger (3, 5)
while, simultaneously, the adsorbent material of a refrigerant
condensing heat exchanger (5, 3) is regenerated by the release of
moisture therefrom to a stream of air flowing through said
refrigerant condensing heat exchanger (5, 3), whereby the stream of
air dehumidified by the adsorbent material of said refrigerant
evaporating heat exchanger (3, 5) is supplied to an indoor
space.
4. The humidity controller apparatus of claim 1, wherein: the
adsorbent material is supported on a surface of said first heat
exchanger (3) and a surface of said second heat exchanger (5); and
humidifier means (81) for switching refrigerant circulation in said
refrigerant circuit (1) and air distribution is provided so that
moisture in a stream of air flowing through a refrigerant
evaporating heat exchanger (3, 5) is adsorbed by the adsorbent
material of said refrigerant evaporating heat exchanger (3, 5)
while, simultaneously, the adsorbent material of a refrigerant
condensing heat exchanger (5, 3) is regenerated by the release of
moisture therefrom to a stream of air flowing through said
refrigerant condensing heat exchanger (5, 3), whereby the stream of
air humidified by the adsorbent material of said refrigerant
evaporating heat exchanger (5, 3) is supplied to an indoor
space.
5. The humidity controller apparatus of claim 1, wherein: the
adsorbent material is supported on a surface of said first heat
exchanger (3) as well as on a surface of said second heat exchanger
(5); dehumidifier means (80) for switching refrigerant circulation
in said refrigerant circuit (1) and air distribution is provided so
that moisture in a stream of air flowing through a refrigerant
evaporating heat exchanger (3, 5) is adsorbed by the adsorbent
material of said refrigerant evaporating heat exchanger (3, 5)
while the adsorbent material of a refrigerant condensing heat
exchanger (5, 3) is regenerated by the release of moisture
therefrom to a stream of air flowing through said refrigerant
condensing heat exchanger (5, 3), whereby the stream of air
dehumidified by the adsorbent material of said refrigerant
evaporating heat exchanger (3, 5) is supplied to an indoor space;
humidifier means (81) for switching refrigerant circulation in said
refrigerant circuit (1) and air distribution is provided so that
moisture in a stream of air flowing through a refrigerant
evaporating heat exchanger (3, 5) is adsorbed by the adsorbent
material of said refrigerant evaporating heat exchanger (3, 5)
while the adsorbent material of a refrigerant condensing heat
exchanger (5, 3) is regenerated by the release of moisture
therefrom to a stream of air flowing through said refrigerant
condensing heat exchanger (5, 3), whereby the stream of air
humidified by the adsorbent material of said refrigerant
evaporating heat exchanger (5, 3) is supplied to an indoor space;
and said dehumidifier means (80) and said humidifier means (81) are
configured to operate switchably between a dehumidification mode of
operation and a humidification mode of operation.
6. The humidity controller apparatus of claim 1 comprising: a first
heat exchange chamber (69) for accommodating said first heat
exchanger (3); a second heat exchange chamber (73), formed
adjacently to said first heat exchange chamber (69), for
accommodating said second heat exchanger (5); a first air inflow
passage (63) and a first air outflow passage (65) which are formed
along one end surface in a thickness direction in which respective
one surfaces of said two heat exchange chambers (69, 73) continue
and which are arranged in a superimposed manner in the thickness
direction of both said heat exchange chambers (69, 73); a second
air inflow passage (57) and a second air outflow passage (59) which
are formed along another end surface which is an end surface where
respective one surfaces of said two heat exchange chambers (69, 73)
continue and which is situated face to face with said one end
surface, and which are arranged in a superimposed manner in the
thickness direction of both said heat exchange chambers (69, 73);
and opening/closing means (35, . . . , 47, . . . ) for opening and
closing openings (31a, 33a, . . . ) for communication between said
first heat exchange chamber (69) and said second heat exchange
chamber (73), and each said inflow passage (57, 63) and each said
outflow passage (59, 65).
7. The humidity controller apparatus of claim 5, wherein: said
dehumidifier means (80) is configured so as to perform a
dehumidification operation in full ventilation mode in which:
outdoor air is brought in, moisture in the outdoor air is adsorbed
by the adsorbent material of said heat exchanger (3, 5) which
becomes an evaporator, and the outdoor air thus converted into a
stream of dehumidified air is supplied indoors while, on the other
hand, room air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) which becomes a condenser is
released to the room air whereby said adsorbent material of said
heat exchanger (5, 3) is regenerated, and the room air thus
converted into a stream of humidified air is discharged outdoors;
and said humidifier means (81) is configured so as to perform a
humidification operation in full ventilation mode in which: room
air is brought in, moisture in the room air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the room air thus converted into a stream of
dehumidified air is discharged outdoors while, on the other hand,
outdoor air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) as a condenser is released
to the outdoor air whereby said adsorbent material of said heat
exchanger (5, 3) is regenerated, and the outdoor air thus converted
into a stream of humidified air is supplied indoors.
8. The humidity controller apparatus of claim 5, wherein: said
dehumidifier means (80) is configured so as to perform a
dehumidification operation in circulation mode in which: room air
is brought in, moisture in the room air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the room air thus converted into a stream of
dehumidified air is supplied indoors while, on the other hand,
outdoor air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) which becomes a condenser is
released to the outdoor air whereby said adsorbent material of said
heat exchanger (5, 3) is regenerated, and the outdoor air thus
converted into a stream of humidified air is discharged outdoors;
and said humidifier means (81) is configured so as to perform a
humidification operation in circulation mode in which: outdoor air
is brought in, moisture in the outdoor air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the outdoor air thus converted into a stream of
dehumidified air is discharged outdoors while, on the other hand,
room air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) which becomes a condenser is
released to the room air whereby said adsorbent material of said
heat exchanger (5, 3) is regenerated, and the room air thus
converted into a stream of humidified air is supplied indoors.
9. The humidity controller apparatus of claim 5, wherein: said
dehumidifier means (80) is configured so as to perform a
dehumidification operation in air supply mode in which: outdoor air
is brought in, moisture in the outdoor air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the outdoor air thus converted into a stream of
dehumidified air is supplied indoors while, on the other hand,
outdoor air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) which becomes a condenser is
released to the outdoor air whereby said adsorbent material of said
heat exchanger (5, 3) is regenerated, and the outdoor air thus
converted into a stream of humidified air is discharged outdoors;
and said humidifier means (81) is configured so as to perform a
humidification operation in air supply mode in which: outdoor air
is brought in, moisture in the outdoor air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the outdoor air thus converted into a stream of
dehumidified air is discharged outdoors while, on the other hand,
outdoor air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) which becomes a condenser is
released to the outdoor air whereby said adsorbent material of said
heat exchanger (5, 3) is regenerated, and the outdoor air thus
converted into a stream of humidified air is supplied indoors.
10. The humidity controller apparatus of claim 5, wherein: said
dehumidifier means (80) is configured so as to perform a
dehumidification operation in air discharge mode in which: room air
is brought in, moisture in the room air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the room air thus converted into a stream of
dehumidified air is supplied indoors while, on the other hand, room
air is brought in, moisture desorbed from said adsorbent material
of said heat exchanger (5, 3) which becomes a condenser is released
to the room air whereby said adsorbent material of said heat
exchanger (5, 3) is regenerated, and the room air thus converted
into a stream of humidified air is discharged outdoors; and said
humidifier means (81) is configured so as to perform a
humidification operation in air discharge mode in which: room air
is brought in, moisture in the room air is adsorbed by said
adsorbent material of said heat exchanger (3, 5) which becomes an
evaporator, and the room air thus converted into a stream of
dehumidified air is discharged outdoors while, on the other hand,
room air is brought in, moisture desorbed from said adsorbent
material of said heat exchanger (5, 3) which becomes a condenser is
released to the room air whereby said adsorbent material of said
heat exchanger (5, 3) is regenerated, and the room air thus
converted into a stream of humidified air is supplied indoors.
Description
TECHNICAL FIELD
[0001] The present invention generally relates to humidity
controller apparatuses, and it relates more specifically to a
humidity controller apparatus provided with a vapor compression
refrigeration cycle refrigerant circuit.
BACKGROUND ART
[0002] Conventionally, humidity controller apparatuses for
regulating the humidity of air by making use of an adsorbent
material have been known in the prior art. One such humidity
controller apparatus is disclosed in Japanese Patent Application
Kokai Publication No. 1996-189667.
[0003] This humidity controller apparatus has an air passage
through which a stream of outdoor or room air flows and passes.
And, a section of the piping of a refrigerant circuit which
performs a vapor compression refrigeration cycle by the circulation
of refrigerant is disposed in the inside of the air passage. This
piping section in the air passage functions as an evaporator or as
a condenser. In addition, disposed on the periphery of the piping
in the air passage is a mesh member which is formed of a net-like
member in which is encapsulated an adsorbent material.
[0004] The adsorbent material of the mesh container is cooled by a
flow of refrigerant traveling through the piping section, when the
piping section functions as an evaporator. By the action of such
cooling, moisture present in the room or outdoor air is adsorbed
via the net-like member. In addition, when the piping section
functions as a condenser, moisture adsorbed onto the adsorbent
material is desorbed when heated by the refrigerant flowing through
the piping section. As a result, the adsorbent material is
regenerated.
PROBLEMS THAT INVENTION INTENDS TO SOLVE
[0005] In the above-described conventional humidity controller
apparatus, however, the piping as a means for cooling and heating
air and the mesh container as a moisture-adsorbing means are formed
and arranged separately. Therefore, in the conventional humidity
controller apparatus, the mesh container and the piping are
different members, and problems arise. The number of component
parts increases. The entire structure of the apparatus becomes
complicated. In addition, the humidity controller apparatus grows
in size.
[0006] Additionally, the contact thermal resistance increases if
the adsorbent material is brought into contact with only the piping
or the like. This gives rise to another problem that desired
cooling and heating effects are not provided.
[0007] With the above described problems in mind, the present
invention was made. Accordingly, an object of the present invention
is to dispose an adsorbent material without separate provision of
an adsorption means such as a mesh container or the like.
DISCLOSURE OF INVENTION
[0008] As illustrated in FIG. 1, a first invention is directed to a
humidity controller apparatus, provided with an adsorbent material,
for regulating the humidity of air by effecting moisture adsorption
onto the adsorbent material and moisture desorption from the
adsorbent material. In the humidity controller apparatus of the
first invention, there is provided a refrigerant circuit (1) which
comprises a first heat exchanger (3) and a second heat exchanger
(5); which performs a vapor compression refrigeration cycle by the
circulation of a refrigerant therethrough; and which alternately
effects refrigerant condensation and evaporation in the first and
second heat exchangers (3, 5). In addition, the adsorbent material
is supported on at least a surface of the first heat exchanger
(3).
[0009] In the first invention, it is arranged that the adsorbent
material is supported on the surface of the first heat exchanger
(3). Accordingly, the adsorbent material is cooled by the
evaporation of the refrigerant in the first heat exchanger (3). As
a result, heat of adsorption is absorbed.
[0010] In addition, the adsorbent material is heated by the
condensation of the refrigerant in the first heat exchanger (3). As
a result, the adsorbent material is regenerated.
[0011] A second invention provides a humidity controller apparatus
according to the first invention which comprises a moisture
absorbing means for switching refrigerant circulation in the
refrigerant circuit (1) and air distribution so that refrigerant
condensation takes place in the second heat exchanger (5) while,
simultaneously, refrigerant evaporation takes place in the first
heat exchanger (3), whereby moisture present in a stream of air
flowing through the first heat exchanger (3) is adsorbed by the
adsorbent. The humidity controller apparatus of the second
invention further comprises a moisture releasing means for
switching refrigerant circulation in the refrigerant circuit (1)
and air distribution so that refrigerant condensation takes place
in the first heat exchanger (3) while, simultaneously, refrigerant
evaporation takes place in the second heat exchanger (5), whereby
the adsorbent material is regenerated by the release of moisture
therefrom to a stream of air flowing through the first heat
exchanger (3).
[0012] In the second invention, the refrigerant is evaporated in
the first heat exchanger (3) by the moisture absorbing means, and
the adsorbent material is cooled. As the result of this, heat of
adsorption is absorbed into the refrigerant. In addition, the
refrigerant is condensed in the first heat exchanger (3) by the
moisture releasing means, and the adsorbent material is heated. As
the result of this, the adsorbent material is regenerated.
[0013] A third invention provides a humidity controller apparatus
according to the first invention, in which the adsorbent material
is supported on a surface of the first heat exchanger (3) and a
surface of the second heat exchanger (5) and a dehumidifier means
(80) for switching refrigerant circulation in the refrigerant
circuit (1) and air distribution is provided so that moisture in a
stream of air flowing through a refrigerant evaporating heat
exchanger (3, 5) is adsorbed by the adsorbent material of the
refrigerant evaporating heat exchanger (3, 5) while,
simultaneously, the adsorbent material of a refrigerant condensing
heat exchanger (5, 3) is regenerated by the release of moisture
therefrom to a stream of air flowing through the refrigerant
condensing heat exchanger (5, 3), whereby the stream of air
dehumidified by the adsorbent material of the refrigerant
evaporating heat exchanger (3, 5) is supplied to an indoor
space.
[0014] In the third invention, the dehumidifier means (80) switches
refrigerant circulation in the refrigerant circuit (1) and air
distribution, whereby air dehumidification takes place in one heat
exchanger (i.e., the heat exchanger (3, 5)) and adsorbent-material
regeneration takes place in the other heat exchanger (i.e., the
heat exchanger (5, 3)). As the result of this, dehumidification is
carried out without interruption.
[0015] A fourth invention provides a humidity controller apparatus
according to the first invention, in which the adsorbent material
is supported on a surface of the first heat exchanger (3) and a
surface of the second heat exchanger (5). In addition, the humidity
controller apparatus of the fourth invention further comprises a
humidifier means (81) for switching refrigerant circulation in the
refrigerant circuit (1) and air distribution is provided so that
moisture in a stream of air flowing through a refrigerant
evaporating heat exchanger (3, 5) is adsorbed by the adsorbent
material of the refrigerant evaporating heat exchanger (3, 5)
while, simultaneously, the adsorbent material of a refrigerant
condensing heat exchanger (5, 3) is regenerated by the release of
moisture therefrom to a stream of air flowing through the
refrigerant condensing heat exchanger (5, 3), whereby the stream of
air humidified by the adsorbent material of the refrigerant
evaporating heat exchanger (5, 3) is supplied to an indoor
space.
[0016] In the fourth invention, the humidifier means (81) switches
refrigerant circulation in the refrigerant circuit (1) and air
distribution, air dehumidification takes place in one heat
exchanger (i.e., the heat exchanger (3, 5)) while air
humidification takes place in the other heat exchanger (i.e., the
heat exchanger (5, 3)), whereby the adsorbent material thereof is
regenerated. As the result of this, humidification is carried out
without interruption.
[0017] A fifth invention provides a humidity controller apparatus
according to the first invention, wherein the adsorbent material is
supported on a surface of the first heat exchanger (3) as well as
on a surface of the second heat exchanger (5). Furthermore, a
dehumidifier means (80) for switching refrigerant circulation in
the refrigerant circuit (1) and air distribution is provided so
that moisture in a stream of air flowing through a refrigerant
evaporating heat exchanger (3, 5) is adsorbed by the adsorbent
material of the refrigerant evaporating heat exchanger (3, 5) while
the adsorbent material of a refrigerant condensing heat exchanger
(5, 3) is regenerated by the release of moisture therefrom to a
stream of air flowing through the refrigerant condensing heat
exchanger (5, 3), whereby the stream of air dehumidified by the
adsorbent material of the refrigerant evaporating heat exchanger
(3, 5) is supplied to an indoor space. In addition, a humidifier
means (81) for switching refrigerant circulation in the refrigerant
circuit (1) and air distribution is provided so that moisture in a
stream of air flowing through a refrigerant evaporating heat
exchanger (3, 5) is adsorbed by the adsorbent material of the
refrigerant evaporating heat exchanger (3, 5) while the adsorbent
material of a refrigerant condensing heat exchanger (5, 3) is
regenerated by the release of moisture therefrom to a stream of air
flowing through the refrigerant condensing heat exchanger (5, 3),
whereby the stream of air humidified by the adsorbent material of
the refrigerant evaporating heat exchanger (5, 3) is supplied to an
indoor space. Besides, the dehumidifier means (80) and the
humidifier means (81) are configured to operate switchably between
a dehumidification mode of operation and a humidification mode of
operation.
[0018] In the fifth invention, the dehumidifier means (80) switches
refrigerant circulation in the refrigerant circuit (1) and air
distribution, whereby air dehumidification takes place in one heat
exchanger (i.e., the refrigerant evaporating heat exchanger (3, 5))
and adsorbent-material regeneration takes place in the other heat
exchanger (i.e., the refrigerant condensing heat exchanger (5, 3)).
As the result of this, dehumidification is carried out without
interruption. In addition, when switched to the humidifier means
(81), refrigerant circulation in the refrigerant circuit (1) and
air distribution are switched. Then, air dehumidification takes
place in one heat exchanger (i.e., the heat exchanger (3, 5)) and
air humidification takes place in the other heat exchanger (i.e.,
the heat exchanger (5, 3)) and the adsorbent material thereof is
regenerated. As the result of this, humidification is carried out
without interruption.
[0019] A sixth invention provides a humidity controller apparatus
according to the first invention which comprises a first heat
exchange chamber (69) for accommodating the first heat exchanger
(3), and a second heat exchange chamber (73), formed adjacently to
the first heat exchange chamber (69), for accommodating the second
heat exchanger (5). Furthermore, the humidity controller apparatus
of the sixth invention includes a first air inflow passage (63) and
a first air outflow passage (65) which are formed along one end
surface in a thickness direction in which respective one surfaces
of the two heat exchange chambers (69, 73) continue and which are
arranged in a superimposed manner in the thickness direction of
both the heat exchange chambers (69, 73). Besides, the humidity
controller apparatus includes a second air inflow passage (57) and
a second air outflow passage (59) which are formed along another
end surface which is an end surface where respective one surfaces
of the two heat exchange chambers (69, 73) continue and which is
situated face to face with the one end surface, and which are
arranged in a superimposed manner in the thickness direction of
both the heat exchange chambers (69, 73). In addition, the humidity
controller apparatus includes opening/closing means (35, . . . ,
47, . . . ) for opening and closing openings (31a, . . . , 33a, . .
. ) for communication between the first heat exchange chamber (69)
and the second heat exchange chamber (73), and each inflow passage
(57, 63) and each outflow passage (59, 65).
[0020] In the sixth invention, the distribution of air of the first
heat exchange chamber (69) and the second heat exchange chamber
(73) is switched by opening/closing control by means of the
opening/closing means (35, . . . , 47, . . . ). As the result of
this, moisture absorption and moisture release are effected in the
first and second heat exchange chambers (69, 73).
[0021] A seventh invention provides a humidity controller apparatus
according to the fifth invention in which the dehumidifier means
(80) is configured so as to perform a dehumidification operation in
full ventilation mode in which: outdoor air is brought in, moisture
in the outdoor air is adsorbed by the adsorbent material of the
heat exchanger (3, 5) which becomes an evaporator, and the outdoor
air thus converted into a stream of dehumidified air is supplied
indoors while, on the other hand, room air is brought in, moisture
desorbed from the adsorbent material of the heat exchanger (5, 3)
which becomes a condenser is released to the room air whereby the
adsorbent material of the heat exchanger (5, 3) is regenerated, and
the room air thus converted into a stream of humidified air is
discharged outdoors. In addition, the humidifier means (81) is
configured so as to perform a humidification operation in full
ventilation mode in which: room air is brought in, moisture in the
room air is adsorbed by the adsorbent material of the heat
exchanger (3, 5) which becomes an evaporator, and the room air thus
converted into a stream of dehumidified air is discharged outdoors
while, on the other hand, outdoor air is brought in, moisture
desorbed from the adsorbent material of the heat exchanger (5, 3)
as a condenser is released to the outdoor air whereby the adsorbent
material of the heat exchanger (5, 3) is regenerated, and the
outdoor air thus converted into a stream of humidified air is
supplied indoors.
[0022] In the seventh invention, indoor space dehumidification or
humidification is provided simultaneously with air ventilation.
[0023] An eighth invention provides a humidity controller apparatus
according to the fifth invention in which the dehumidifier means
(80) is configured so as to perform a dehumidification operation in
circulation mode in which: room air is brought in, moisture in the
room air is adsorbed by the adsorbent material of the heat
exchanger (3, 5) which becomes an evaporator, and the room air thus
converted into a stream of dehumidified air is supplied indoors
while, on the other hand, outdoor air is brought in, moisture
desorbed from the adsorbent material of the heat exchanger (5, 3)
which becomes a condenser is released to the outdoor air whereby
the adsorbent material of the heat exchanger (5, 3) is regenerated,
and the outdoor air thus converted into a stream of humidified air
is discharged outdoors. In addition, the humidifier means (81) is
configured so as to perform a humidification operation in
circulation mode in which: outdoor air is brought in, moisture in
the outdoor air is adsorbed by the adsorbent material of the heat
exchanger (3, 5) which becomes an evaporator, and the outdoor air
thus converted into a stream of dehumidified air is discharged
outdoors while, on the other hand, room air is brought in, moisture
desorbed from the adsorbent material of the heat exchanger (5, 3)
which becomes a condenser is released to the room air whereby the
adsorbent material of the heat exchanger (5, 3) is regenerated, and
the room air thus converted into a stream of humidified air is
supplied indoors.
[0024] In the eighth invention, indoor space dehumidification or
humidification is provided by the circulation of room air, without
air ventilation.
[0025] A ninth invention provides a humidity controller apparatus
according to the fifth invention in which the dehumidifier means
(80) is configured so as to perform a dehumidification operation in
air supply mode in which: outdoor air is brought in, moisture in
the outdoor air is adsorbed by the adsorbent material of the heat
exchanger (3, 5) which becomes an evaporator, and the outdoor air
thus converted into a stream of dehumidified air is supplied
indoors while, on the other hand, outdoor air is brought in,
moisture desorbed from the adsorbent material of the heat exchanger
(5, 3) which becomes a condenser is released to the outdoor air
whereby the adsorbent material of the heat exchanger (5, 3) is
regenerated, and the outdoor air thus converted into a stream of
humidified air is discharged outdoors. In addition, the humidifier
means (81) is configured so as to perform a humidification
operation in air supply mode in which: outdoor air is brought in,
moisture in the outdoor air is adsorbed by the adsorbent material
of the heat exchanger (3, 5) which becomes an evaporator, and the
outdoor air thus converted into a stream of dehumidified air is
discharged outdoors while, on the other hand, outdoor air is
brought in, moisture desorbed from the adsorbent material of the
heat exchanger (5, 3) which becomes a condenser is released to the
outdoor air whereby the adsorbent material of the heat exchanger
(5, 3) is regenerated, and the outdoor air thus converted into a
stream of humidified air is supplied indoors.
[0026] In the ninth invention, indoor space dehumidification or
humidification is provided by only the taking-in of outdoor
air.
[0027] Finally, a tenth invention provides a humidity controller
apparatus according to the fifth invention in which the
dehumidifier means (80) is configured so as to perform a
dehumidification operation in air discharge mode in which: room air
is brought in, moisture in the room air is adsorbed by the
adsorbent material of the heat exchanger (3, 5) which becomes an
evaporator, and the room air thus converted into a stream of
dehumidified air is supplied indoors while, on the other hand, room
air is brought in, moisture desorbed from the adsorbent material of
the heat exchanger (5, 3) which becomes a condenser is released to
the room air whereby the adsorbent material of the heat exchanger
(5, 3) is regenerated, and the room air thus converted into a
stream of humidified air is discharged outdoors. In addition, the
humidifier means (81) is configured so as to perform a
humidification operation in air discharge mode in which: room air
is brought in, moisture in the room air is adsorbed by the
adsorbent material of the heat exchanger (3, 5) which becomes an
evaporator, and the room air thus converted into a stream of
dehumidified air is discharged outdoors while, on the other hand,
room air is brought in, moisture desorbed from the adsorbent
material of the heat exchanger (5, 3) which becomes a condenser is
released to the room air whereby the adsorbent material of the heat
exchanger (5, 3) is regenerated, and the room air thus converted
into a stream of humidified air is supplied indoors.
[0028] In the tenth invention, indoor space dehumidification or
humidification is provided by only the discharging of room air.
EFFECTS OF INVENTION
[0029] Accordingly, in accordance with the present invention, it is
arranged that adsorbent material is supported on the surface of the
first heat exchanger (3) for the integral formation of a
heating/cooling means and an adsorption/desorption means. Such an
arrangement makes it possible to effect the process of moisture
absorption and the process of moisture release with the omission of
an adsorbent material container. This reduces the number of
component parts, thereby making it possible to provide a simplified
structure and, in addition, it becomes possible to provide a
downsized humidity controller apparatus.
[0030] Furthermore, it is arranged that adsorbent material is
supported on at least the surface of the first heat exchanger (3).
This arrangement allows the refrigerant to directly cool or heat
the adsorbent material. Consequently, the adsorption/desorption
performance of the adsorbent material is brought to a maximum. This
not only improves the efficiency of adsorption/desorption but also
provides a downsized humidity controller apparatus.
[0031] Furthermore, in accordance with the second invention, there
are provided a moisture absorbing means and a moisture releasing
means. This ensures that the process of moisture absorption and the
process of moisture release are assuredly performed in the first
heat exchanger (3).
[0032] Furthermore, in accordance with the third or fourth
invention, it is arranged that adsorbent material is supported on
the surface of the first heat exchanger (3) as well as on the
surface of the second heat exchanger (5). Such an arrangement makes
it possible to continuously perform a dehumidification operation or
a humidification operation with the omission of an adsorbent
material container. This reduces the number of component parts,
thereby making it possible to provide not only a simplified
structure but also a downsized humidity controller apparatus.
Besides, dehumidification or humidification is provided with high
efficiency.
[0033] Furthermore, in accordance with the fifth invention, the
operation is continued by switching between dehumidification and
humidification. This reduces the number of component parts, thereby
making it possible to provide not only a simplified structure but
also a downsized humidity controller apparatus. Besides,
dehumidification or humidification is provided with high
efficiency.
[0034] In addition, in accordance with the sixth invention, it is
arranged that: the first heat exchange chamber (69) and the second
heat exchange chamber (73) are adjacently arranged; the inflow
passages (57, 63) and the outflow passages (59, 65) are arranged in
a superimposed manner in the thickness direction of the first and
second heat exchange chambers (69, 73). This provides a downsized
humidity controller apparatus.
[0035] Furthermore, in accordance with the seventh invention,
indoor space dehumidification or humidification is provided
simultaneously with indoor space air ventilation.
[0036] In addition, in accordance with the eighth invention, indoor
space dehumidification or humidification is provided by the
circulation of room air. Humidity conditioning is carried out by
inhibiting the variation in room temperature without the taking-in
of outdoor air.
[0037] Furthermore, in accordance with the ninth invention, indoor
space dehumidification or humidification is provided by only the
taking-in of outdoor air.
[0038] Lastly, in accordance with the tenth invention, indoor space
dehumidification or humidification is provided by only the
discharging of room air.
BRIEF DESCRIPTION OF DRAWINGS
[0039] FIG. 1 is a circuit diagram showing a refrigerant circuit of
a humidity controller apparatus according to a first embodiment of
the present invention;
[0040] FIG. 2 is a perspective view of a heat exchanger according
to the first embodiment of the present invention;
[0041] FIG. 3 is a plan view of a casing, with the omission of its
top surface plate;
[0042] FIG. 4 is an end elevation view of the casing taken on line
A-A of FIG. 3;
[0043] FIG. 5 is an end elevation view of the casing taken on line
B-B of FIG. 3;
[0044] FIG. 6 is a side view of a damper when placed in the closed
state;
[0045] FIG. 7 is a side view of the damper when placed in the open
state;
[0046] FIG. 8 is a side view of a first modification of the damper
when placed in the closed state;
[0047] FIG. 9 is a side view of the first damper modification when
placed in the open state;
[0048] FIG. 10 is a side view of a second modification of the
damper when placed in the closed state;
[0049] FIG. 11 is a side view of the second damper modification
when placed in the open state;
[0050] FIG. 12 is a plan view of the casing with the omission of
its top surface plate, illustrating a first operation during
dehumidification;
[0051] FIG. 13 is a plan view of the casing with the omission of
its top surface plate, illustrating a second operation during
dehumidification;
[0052] FIG. 14 is a plan view of the casing with the omission of
its top surface plate, illustrating a first operation during
humidification;
[0053] FIG. 15 is a plan view of the casing with the omission of
its top surface plate, illustrating a second operation during
humidification;
[0054] FIG. 16 is a psychrometric chart representing an air state
of the humidity controller apparatus of the first embodiment and
that of a conventional humidity controller apparatus during
dehumidification operation;
[0055] FIG. 17 is a table showing respective data of the humidity
controller apparatus of the first embodiment and the conventional
humidity controller apparatus during dehumidification
operation;
[0056] FIG. 18 shows an end elevation view and a plan view of the
casing in a first operation during dehumidification operation in
air supply mode in a second embodiment of the present
invention;
[0057] FIG. 19 shows an end elevation view and a plan view of the
casing in a second operation during dehumidification operation in
air supply mode in the second embodiment;
[0058] FIG. 20 shows an end elevation view and a plan view of the
casing in a first operation during humidification operation in air
supply mode in the second embodiment;
[0059] FIG. 21 shows an end elevation view and a plan view of the
casing in a second operation during humidification operation in air
supply mode in the second embodiment;
[0060] FIG. 22 shows an end elevation view and a plan view of the
casing in a first operation during dehumidification operation in
air discharge mode in the second embodiment;
[0061] FIG. 23 shows an end elevation view and a plan view of the
casing in a second operation during dehumidification operation in
air discharge mode in the second embodiment;
[0062] FIG. 24 shows an end elevation view and a plan view of the
casing in a first operation during humidification operation in air
discharge mode in the second embodiment; and
[0063] FIG. 25 shows an end elevation view and a plan view of the
casing in a second operation during humidification operation in air
discharge mode in the second embodiment.
BEST MODE FOR CARRYING OUT INVENTION
[0064] Hereinafter, embodiments of the present invention will be
described in detail with reference to the drawings.
Embodiment 1 of Invention
[0065] As shown in FIGS. 1-5, a humidity controller apparatus of
the first embodiment effects room-air dehumidification and
humidification, and has a hollow, rectangular parallelepiped
box-like casing (17). The casing (17) accommodates a refrigerant
circuit (1) and other component parts.
[0066] Referring to FIG. 1, the refrigerant circuit (1) is a closed
circuit formed by a sequential connection of a compressor (7), a
four-way switching valve (9) which is a flow path switching means,
a first heat exchanger (3) which is a first heat exchanger, an
expansion valve (11) which is an expansion mechanism, and a second
heat exchanger (5) which is a second heat exchanger.
[0067] In addition, the refrigerant circuit (1) is charged with a
refrigerant. The refrigerant circuit (1) is configured, such that a
vapor compression refrigeration cycle is performed by the
circulation of the refrigerant therethrough.
[0068] One end of the first heat exchanger (3) is connected to the
four-way switching valve (9). The other end of the first heat
exchanger (3) is connected to one end of the second heat exchanger
(5) via the expansion valve (11). The other end of the second heat
exchanger (5) is connected to the four-way switching valve (9).
[0069] With reference to FIG. 2, the first heat exchanger (3) and
the second heat exchanger (5) are each formed by a respective fin
and tube heat exchanger of the cross fin type. More specifically,
each of the first and second heat exchangers (3) and (5) is
provided with a large number of aluminum fins (13) each shaped like
a rectangular plate and copper heat transfer tubes (15) which
penetrate the fins (13).
[0070] An adsorbent material is supported by means of dip forming
(immersion forming) on the external surface of each fin (13) as
well as on the external surface of each heat transfer tube
(15).
[0071] As the adsorbent material, zeolite, silica gel, activated
carbon, materials selected from the organic polymer family having
hydrophilic properties or water-absorbing properties, materials
selected from the ion-exchange resin family having carboxylic acid
group or sulfonic acid group, and functional polymeric materials
such as temperature-sensitive polymers may be used.
[0072] In the present embodiment, the first heat exchanger (3) and
the second heat exchanger (5) are fin and tube heat exchangers of
the cross fin type. Alternatively, different types of heat
exchangers may be employed. For example, heat exchangers of the
corrugated fin type may be used.
[0073] In addition, in the present embodiment, the adsorbent
material is supported, by means of dip forming, on the external
surface of each of the fins (13) and on the external surface of
each of the heat transfer tubes (15). Alternatively, the adsorbent
material may be supported on the external surfaces by any other
techniques as long as its ability to provide adsorption is not
reduced.
[0074] The four-way switching valve (9) is so configured as to
switch between a first state that allows communication between the
first and third ports and, at the same time, communication between
the second and fourth ports (as indicated in FIG. 1(A)), and a
second state that allows communication between the first and fourth
ports and, at the same time, communication between the second and
third ports (as indicated in FIG. 1(B)). And, the four-way
switching valve (9) is switched for establishing a switch between a
first operation in which the first heat exchanger (3) functions as
a condenser while, simultaneously, the second heat exchanger (5)
functions as an evaporator and a second operation in which the
second heat exchanger (5) functions as a condenser while,
simultaneously, the first heat exchanger (3) functions as an
evaporator.
[0075] Next, with reference to FIGS. 3-5, the inner structure of
the casing (17) is described. Referring to FIG. 3, the casing (17)
has a front side (which is shown as a lower side in the figure), a
backside (upper side), a left-hand side (left side), and a
right-hand side (right side). In addition, in FIGS. 4 and 5, the
casing (17) has a top surface (which is shown as an upper side in
the figure) and a bottom surface (lower side).
[0076] The casing (17) is square when viewed in plan and is shaped
like a flat box. The casing (17) has a left side plate (17a) which
is provided with a first suction opening (19) through which outdoor
air OA is drawn in and a second suction opening (21) through which
room air RA (return air) is drawn in. The casing (17) further has a
right side plate (17b) which is provided with a first outlet
opening (23) through which emission air EA is expelled outside the
room and a second outlet opening (25) through which
humidity-conditioned air SA is supplied to an indoor space.
[0077] Disposed inside the casing (17) is a partition plate (27)
which is a partition member. The partition plate (27) defines an
air chamber (29a) and an equipment chamber (29b) inside the casing
(17). The partition plate (27) is disposed perpendicularly, i.e.,
in the direction of the thickness of the casing (17). Referring to
FIGS. 4 and 5, the partition plate (27) is disposed so as to extend
from a top plate (17e) of the casing (17) (upper side) to a bottom
plate (17f) of the casing (17) (lower side). Furthermore, with
reference to FIG. 3, the partition plate (27) is disposed so as to
extend from a front plate (17c) of the casing (17) (lower side) to
a back plate (17d) of the casing (17) (upper side). In addition, in
FIG. 3, the partition plate (27) is positioned, such that it lies
somewhat right relative to the central part of the casing (17).
[0078] The equipment chamber (29b) accommodates the compressor (7)
and other devices in the refrigerant circuit (1) with the exclusion
of the heat exchangers (3, 5). In addition, the equipment chamber
(29b) houses a first fan (79) and a second fan (77). The first fan
(79) is connected to the first outlet opening (23) while, on the
other hand, the second fan (77) is connected to the second outlet
opening (25).
[0079] The air chamber (29a) of the casing (17) is provided with a
first end surface plate (33) which is a partition member, a second
end surface plate (31) which is a partition member, and a central
dividing plate (67) which is a partition member. The first end
surface plate (33), the second end surface plate (31), and the
dividing plate (67) are all disposed perpendicularly, i.e., in the
direction of the thickness of the casing (17) and, as shown in
FIGS. 4 and 5, these plates are disposed, such that they extend
from the top surface plate (17e) to the bottom surface plate (17e)
in the casing (17).
[0080] As shown in FIG. 3, the first end surface plate (33) and the
second end surface plate (31) are disposed so as to extend to the
partition plate (27) from the left side surface plate (17a) in the
casing (17). In addition, the first end surface plate (33) is
positioned, such that it slightly overlies the central part of
casing (17) in FIG. 3. On the other hand, the second end surface
plate (31) is positioned, such that it slightly underlies the
central part of casing (17), as shown in FIG. 3.
[0081] The dividing plate (67) is disposed so as to extend between
the first end surface plate (33) and the second end surface plate
(31), as shown in FIG. 3.
[0082] And, in the casing (17), a first heat exchange chamber (69)
is divisionally formed as a compartment by the first end surface
plate (33), the second end surface plate (31), the dividing plate
(67), and the partition plate (27). In addition, in the casing
(17), a second heat exchange chamber (73) is divisionally formed as
a compartment by the first end surface plate (33), the second end
surface plate (31), the dividing plate (67), and the left side
surface plate (17a) of the casing (17). In other words, the first
heat exchange chamber (69) lies on the right-hand side in FIG. 3;
the second heat exchange chamber (73) lies on the left-hand side in
FIG. 3; and the first heat exchange chamber (69) and the second
heat exchange chamber (73) are formed adjacently parallelly with
each other.
[0083] The first heat exchanger (3) is disposed in the first heat
exchange chamber (69). The second heat exchanger (5) is disposed in
the second heat exchange chamber (73).
[0084] A horizontal plate (61), serving as a partition member, is
disposed between the first end surface plate (33) and the back
plate (17d) of the casing (17), such that it defines a first inflow
passage (63) and a first outflow passage (65). In addition, a
horizontal plate (55), serving as a partition member, is disposed
between the second end surface plate (31) and the front plate (17c)
of the casing (17), such that it defines a second inflow passage
(57) and a second outflow passage (59).
[0085] The interior space of the casing (17) is divided vertically
(i.e., in the direction of the thickness of the casing (17)) into
upper and lower spaces by the horizontal plates (61, 55). And, in
FIG. 4, the first inflow passage (63) is formed on the top surface
side while, on the other hand, the first outflow passage (65) is
formed on the bottom surface side. In FIG. 5, the second inflow
passage (57) is formed on the top surface side while, on the other
hand, the second outflow passage (59) is formed on the bottom
surface side.
[0086] That is, the first inflow passage (63) and the first outflow
passage (65) are formed along one end surface in a thickness
direction in which respective one surfaces of the first and second
heat exchange chambers (69) and (73) continue, and are arranged in
a superimposed manner in the thickness direction of the first and
second heat exchange chambers (69, 73).
[0087] In addition, a second air inflow passage (57) and a second
air outflow passage (59) which are formed along another end surface
which is an end surface where respective one surfaces of the heat
exchange chambers (69, 73) continue and which is situated face to
face with the one end surface, and which are arranged in a
superimposed manner in the thickness direction of the heat exchange
chambers (69, 73).
[0088] And, In FIG. 3, the first inflow passage (63) and the first
outflow passage (65) are arranged symmetrically with the second
inflow passage (57) and the second outflow passage (59), in other
words, they are arranged in plane symmetry on the basis of a
central line that crosses the first and second heat exchange
chambers (69) and (73).
[0089] In addition, the first inflow passage (63) is in
communication with the first suction opening (19). The first
outflow passage (65) is in communication with the first fan (79),
thereby being in communication with the first outlet opening (23).
The second inflow passage (57) is in communication with the second
suction opening (21). The second outflow passage (59) is in
communication with the second fan (77), thereby being in
communication with the second outlet opening (25).
[0090] As shown in FIG. 4, the first end surface plate (33) is
provided with first to fourth openings (33a, 33b, 33c, 33d). The
first to fourth openings (33a, 33b, 33c, 33d) are provided with a
first damper (47), a second damper (49), a third damper (51), and a
fourth damper (53), respectively. These four openings (33a-33d) are
positioned in close proximity to one another in a matrix direction,
in other words they are vertically laterally arranged in the form
of squares in pairs. The first opening (33a) and the third opening
(33c) open to the first heat exchange chamber (69) while, on the
other hand, the second opening (33b) and the fourth opening (33d)
open to the second heat exchange chamber (73).
[0091] The first opening (33a) allows communication between the
first inflow passage (63) and the first heat exchange chamber (69).
The third opening (33c) allows communication between the first
outflow passage (65) and the first heat exchange chamber (69). In
addition, the second opening (33b) allows communication between the
first inflow passage (63) and the second heat exchange chamber
(73). The fourth opening (33d) allows communication between the
first outflow passage (65) and the second heat exchange chamber
(73).
[0092] As shown in FIG. 5, the second end surface plate (31) is
provided with fifth to eighth openings (31a, 31b, 31c, 31d). The
fifth to eighth openings (31a, 31b, 31c, 31d) are provided with a
fifth damper (35), a sixth damper (37), a seventh damper (39), and
an eighth damper (41), respectively. The four openings (31a, 31b,
31c, 31d) are positioned in close proximity to one another in a
matrix direction, in other words they are vertically laterally
arranged in the form of squares in pairs. The fifth opening (31a)
and the seventh opening (31c) open to the first heat exchange
chamber (69) while, on the other hand, the sixth opening (31b) and
the eighth opening (31d) open to the second heat exchange chamber
(73).
[0093] The fifth opening (31a) allows communication between the
second inflow passage (57) and the first heat exchange chamber
(69). The seventh opening (31c) allows communication between the
second outflow passage (59) and the first heat exchange chamber
(69). In addition, the sixth opening (31b) allows communication
between the second inflow passage (57) and the second heat exchange
chamber (73). The eighth opening (31d) allows communication between
the second outflow passage (59) and the second heat exchange
chamber (73).
[0094] The first to eighth dampers (47-53, 35-41) constitute
opening and closing means for opening and closing the openings
(33a-33d, 31a-31d). The description is made with a focus on the
fifth to eighth dampers (35-41). The damper (35-41) has a vane part
(43) shaped like a rectangle and a shaft part (45) arranged
centrally in the vane part (43), as shown in FIGS. 6 and 7. The
shaft part (45) supports the vane part (43) on the first end
surface plate (33) or on the second end surface plate (31), such
that the vane part (43) is rotatable. And, as shown in FIG. 7, the
damper (35-41) is configured so that the opening (31a-31d) is
placed in the open state when the vane part (43) is placed in a
horizontal position. The other first to fourth dampers (47-53) are
formed so as to have the same structure as that of the fifth to
eighth dampers (35-41).
[0095] The structure of the dampers (35-41) is not limited to the
ones shown in FIGS. 6 and 7. That is, each damper (47-53, 35-41)
may employ a structure shown in FIGS. 10 and 11 or a structure
shown in FIGS. 8 and 9.
[0096] Referring to FIGS. 8 and 9, there are shown fifth to eighth
dampers (35-41) each of which is provided with two vane parts (43).
Each damper (35-41) is configured, such that its two vane parts
(43) rotate individually upwards and downwards respectively,
thereby placing the associated opening (31a-31d) in the open
state.
[0097] Referring to FIGS. 10 and 11, there are shown fifth to
eighth dampers (35-41) each of which is provided with two vane
parts (43). Each damper (35-41) is configured, such that its two
vane parts (43) is folded upwards, thereby placing the associated
opening (31a-31d) in the open state.
[0098] In addition, the present humidity controller apparatus is
provided with a dehumidifier means (80) and a humidifier means
(81). And, it is configured that the dehumidifier means (80) may be
switched to function as the humidifier means (81), and vice versa,
thereby allowing a switch between a dehumidification mode of
operation and a humidification mode of operation.
[0099] The dehumidifier means (80) switches the circulation of
refrigerant in the refrigerant circuit (1) and the distribution of
air by the damper (47-53, 35-41) so that moisture present in a
stream of air flowing through the first heat exchanger (3) or the
second heat exchanger (5), whichever functions as a refrigerant
evaporating heat exchanger, is adsorbed by adsorbent material
while, on the other hand, adsorbent material is regenerated by the
release of moisture present in the adsorbent material to a stream
of air flowing through the second heat exchanger (5) or the first
heat exchanger (3), whichever functions as a refrigerant condensing
heat exchanger, and the stream of air thus converted into a stream
of dehumidified air by the adsorbent material is supplied into the
room.
[0100] On the other hand, the humidifier means (81) switches the
circulation of refrigerant in the refrigerant circuit (1) and the
distribution of air by the damper (47-53, 35-41) so that moisture
present in a stream of air flowing through the first heat exchanger
(3) or the second heat exchanger (5), whichever functions as a
refrigerant evaporating heat exchanger, is adsorbed by adsorbent
material while, on the other hand, adsorbent material is
regenerated by the release of moisture present in the adsorbent
material to a stream of air flowing through the second heat
exchanger (5) or the first heat exchanger (3), whichever functions
as a refrigerant condensing heat exchanger, and the stream of air
thus converted into a stream of humidified air by the adsorbent
material is supplied into the room.
[0101] More specifically, the dehumidifier means (80) performs a
dehumidification operation in full ventilation mode. In this
dehumidification operation, outdoor air is brought in, moisture in
the outdoor air is adsorbed by the adsorbent material of the heat
exchanger (3, 5) which becomes an evaporator, and the outdoor air
thus converted into a stream of dehumidified air is supplied
indoors while, on the other hand, room air is brought in, moisture
desorbed from the adsorbent material of the heat exchanger (5, 3)
which becomes a condenser is released to the room air whereby the
adsorbent material of the heat exchanger (5, 3) is regenerated, and
the room air thus converted into a stream of humidified air is
discharged outdoors.
[0102] The humidifier means (81) performs a humidification
operation in full ventilation mode. In this humidification
operation, room air is brought in, moisture in the room air is
adsorbed by the adsorbent material of the heat exchanger (3, 5)
which becomes an evaporator and the room air thus converted into a
stream of dehumidified air is discharged outdoors while, on the
other hand, outdoor air is brought in, moisture desorbed from the
adsorbent material of the heat exchanger (5, 3) which becomes a
condenser is released to the outdoor air whereby the adsorbent
material of the heat exchanger (5, 3) is regenerated, and the
outdoor air thus converted into a stream of humidified air is
supplied indoors.
[0103] In addition, the dehumidifier means (80) performs a
dehumidification operation in circulation mode in which room air is
brought in, moisture in the room air is adsorbed by the adsorbent
material of the heat exchanger (3, 5) which becomes an evaporator
and the room air thus converted into a stream of dehumidified is
supplied indoors while, on the other hand, outdoor air is brought
in, moisture desorbed from the adsorbent material of the heat
exchanger (5, 3) which becomes a condenser is released to the
outdoor air whereby the adsorbent material of the heat exchanger
(5, 3) is regenerated, and the outdoor air thus converted into a
stream of humidified air is discharged outdoors.
[0104] The humidifier means (81) performs a humidification
operation in circulation mode in which outdoor air is brought in,
moisture in the outdoor air is adsorbed by the adsorbent material
of the heat exchanger (3, 5) which becomes an evaporator and the
outdoor air thus converted into a stream of dehumidified air is
discharged outdoors while, on the other hand, room air is brought
in, moisture desorbed from the adsorbent material of the heat
exchanger (5, 3) which becomes a condenser is released to the room
air whereby the adsorbent material of the heat exchanger (5, 3) is
regenerated, and the room air thus converted into a stream of
humidified air is supplied indoors.
Running Operation
[0105] Next, the running operation of the above-described humidity
controller apparatus is described. The humidity controller
apparatus takes in a stream of first air and a stream of second air
and performs selectively a dehumidification operation or a
humidification operation. In addition, the humidity controller
apparatus continuously performs dehumidification and humidification
operations by alternately repeating a first operation and a second
operation. Besides, the humidity controller apparatus performs
dehumidification and humidification operations in full ventilation
mode and, in addition, humidification and dehumidification
operations in circulation mode.
Dehumidification Operation in Full Ventilation Mode
[0106] In a dehumidification operation during full ventilation mode
by the dehumidifier means (80), outdoor air OA is brought in as the
first air and is supplied to the room while, on the other hand,
room air RA is brought in as the second air and is discharged
outside the room.
First Operation
[0107] In the first operation in which the first fan (79) and the
second fan (77) are driven, the process of moisture adsorption in
the second heat exchanger (5) and the process of adsorbent-material
regeneration (moisture desorption) in the first heat exchanger (3)
are carried out. In other words, in the first operation, moisture
present in the outdoor air OA is adsorbed in the second heat
exchanger (5) and moisture desorbed out of the first heat exchanger
(3) is given to the room air RA.
[0108] Referring to FIG. 1(A) and FIG. 12, during the first
operation the second damper (49), the third damper (51), the eighth
damper (41), and the fifth damper (35) are placed in the open state
while, on the other hand, the first damper (47), the fourth damper
(53), the sixth damper (37), and the seventh damper (39) are placed
in the closed state. The first heat exchanger (3) is supplied with
a stream of room air RA. The second heat exchanger (5) is supplied
with a stream of outdoor air OA.
[0109] In addition, the four-way switching valve (9) changes state
to a state shown in FIG. 1 (A). As a result, in the refrigerant
circuit (1) the first heat exchanger (3) functions as a condenser
and the second heat exchanger (5) functions as an evaporator.
[0110] That is, high-temperature, high-pressure refrigerant
expelled out of the compressor (7) flows into the first heat
exchanger (3) as a heat carrier for heating. In the first heat
exchanger (3), the adsorbent materials supported, respectively, on
the external surface of each fin (13) and on the external surface
of each heat transfer tube (15) are heated. This heating causes
moisture desorption from the adsorbent materials, whereby the
adsorbent materials are regenerated.
[0111] On the other hand, the refrigerant condensed in the first
heat exchanger (3) is decompressed by the expansion valve (11). The
post-decompression refrigerant flows into the second heat exchanger
(5) as a heat carrier for cooling. In the second heat exchanger
(5), heat of adsorption is generated when the adsorbent material
supported on the external surface of each fin (13) and the
adsorbent material supported on the external surface of each heat
transfer tube (15) adsorb moisture. The refrigerant in the second
heat exchanger (5) absorbs the heat of adsorption and then
evaporates. The refrigerant evaporated is directed back to the
compressor (7) and repeats such a circulation.
[0112] In addition, an inflow of room air RA entering through the
second suction opening (21) by drive of the first and second fans
(79) and (77) travels through the second inflow passage (57) and
flows to the first heat exchange chamber (69) from the fifth
opening (31a). In the first heat exchange chamber (69), moisture
desorbed from the adsorbent material of the first heat exchanger
(3) is released to the room air RA and, in this way, the room air
RA is humidified. The room air RA thus humidified becomes a stream
of emission air EA. The emission air EA exiting the first heat
exchange chamber (69) flows through the first outflow passage (65)
by way of the third opening (33c). Then, the emission air EA, after
passing through the first fan (79), is discharged outdoors through
the first outlet opening (23).
[0113] On the other hand, an inflow of outdoor air OA entering
through the first suction opening (19) travels through the first
inflow passage (63) and flows to the second heat exchange chamber
(73) from the second opening (33b). In the second heat exchange
chamber (73), moisture in the outdoor air OA is adsorbed by the
adsorbent material of the second heat exchanger (5) and, in this
way, the outdoor air OA is dehumidified. The outdoor air OA thus
dehumidified becomes a stream of humidity conditioned air SA. The
humidity conditioned air SA exiting the second heat exchange
chamber (73) flows through the second outflow passage (59) by way
of the eighth opening (31d). Then, the humidity conditioned air SA,
after passing through the second fan (77), is supplied indoors
through the second outlet opening (25).
[0114] Upon completion of the execution of the first operation, the
second operation is carried out.
Second Operation
[0115] In the second operation in which the first fan (79) and the
second fan (77) are driven, the process of adsorption in the first
heat exchanger (3) and the process of regeneration in the second
heat exchanger (5) are carried out. In other words, in the second
operation, moisture present in outdoor air OA is adsorbed in the
first heat exchanger (3) and moisture desorbed out of the second
heat exchanger (5) is given to room air RA.
[0116] Referring to FIG. 1(B) and FIG. 13, during the second
operation the first damper (47), the fourth damper (53), the
seventh damper (39), and the sixth damper (37) are placed in the
open state while, on the other hand, the third damper (51), the
second damper (49), the fifth damper (35), and the eighth damper
(41) are placed in the closed state. And, the first heat exchanger
(3) is supplied with a stream of outdoor air OA. The second heat
exchanger (5) is supplied with a stream of room air RA.
[0117] In addition, the four-way switching valve (9) changes state
to a state shown in FIG. 1 (B). As a result, in the refrigerant
circuit (1) the second heat exchanger (5) functions as a condenser
and the first heat exchanger (3) functions as an evaporator.
[0118] That is, high-temperature, high-pressure refrigerant
expelled out of the compressor (7) flows into the second heat
exchanger (5) as a heat carrier for heating. In the second heat
exchanger (5), the adsorbent materials supported, respectively, on
the external surface of each fin (13) and on the external surface
of each heat transfer tube (15) are heated. This heating causes
moisture desorption from the adsorbent materials, whereby the
adsorbent materials are regenerated.
[0119] On the other hand, the refrigerant condensed in the second
heat exchanger (5) is decompressed by the expansion valve (11). The
post-decompression refrigerant flows into the first heat exchanger
(3) as a heat carrier for cooling. In the first heat exchanger (3),
heat of adsorption is generated when the adsorbent material
supported on the external surface of each fin (13) and the
adsorbent material supported on the external surface of each heat
transfer tube (15) adsorb moisture. The refrigerant in the first
heat exchanger (3) absorbs the heat of adsorption and then
evaporates. The refrigerant evaporated is directed back to the
compressor (7) and repeats such a circulation.
[0120] In addition, an inflow of room air RA entering through the
second suction opening (21) by drive of the first and second fans
(79) and (77) travels through the second inflow passage (57) and
flows to the second heat exchange chamber (73) from the sixth
opening (31b). In the second heat exchange chamber (73), moisture
desorbed from the adsorbent material of the second heat exchanger
(5) is released to the room air RA and, in this way, the room air
RA is humidified. The room air RA thus humidified becomes a stream
of emission air EA. The emission air EA exiting the second heat
exchange chamber (73) flows through the first outflow passage (65)
by way of the fourth opening (33d). Then, the emission air EA,
after passing through the first fan (79), is discharged outdoors
from the first outlet opening (23).
[0121] On the other hand, an inflow of outdoor air OA entering
through the first suction opening (19) travels through the first
inflow passage (63). The outdoor air OA flows into the first heat
exchange chamber (69) from the first opening (33a). In the first
heat exchange chamber (69), moisture in the outdoor air OA is
adsorbed by the adsorbent material of the first heat exchanger (3),
whereby the outdoor air OA is dehumidified. The outdoor air OA thus
dehumidified becomes a stream of humidity conditioned air SA. The
humidity conditioned air SA exiting the first heat exchange chamber
(69) flows through the second outflow passage (59) by way of the
seventh opening (31c). Then, the humidity conditioned air SA, after
passing through the second fan (77), is supplied indoors through
the second outlet opening (25).
[0122] After execution of the second operation, the first operation
is carried out again. And, indoor space dehumidification is
continuously carried out by repetition of the first operation and
the second operation.
Humidification Operation in Full Ventilation Mode
[0123] In a humidification operation in full ventilation mode by
the humidifier means (81), room air RA is brought in as the first
air and is discharged outside the room while, on the other hand,
outdoor air OA is brought in as the second air and is supplied into
the room.
First Operation
[0124] In the first operation in which the first fan (79) and the
second fan (77) are driven, the process of adsorption in the second
heat exchanger (5) and the process of regeneration in the first
heat exchanger (3) are carried out. In other words, in the first
operation, moisture present in the room air RA is adsorbed in the
second heat exchanger (5) and moisture desorbed out of the first
heat exchanger (3) is given to the outdoor air OA.
[0125] Referring to FIG. 1(A) and FIG. 14, during the first
operation the first damper (47), the fourth damper (53), the
seventh damper (39), and the sixth damper (37) are placed in the
open state while, on the other hand, the third damper (51), the
second damper (49), the fifth damper (35), and the eighth damper
(41) are placed in the closed state. The first heat exchanger (3)
is supplied with a stream of outdoor air OA. The second heat
exchanger (5) is supplied with a stream of room air RA.
[0126] In addition, the four-way switching valve (9) changes state
to a state shown in FIG. 1 (A). As a result, in the refrigerant
circuit (1) the first heat exchanger (3) functions as a condenser
and the second heat exchanger (5) functions as an evaporator.
[0127] That is, high-temperature, high-pressure refrigerant
expelled out of the compressor (7) flows into the first heat
exchanger (3) as a heat carrier for heating. In the first heat
exchanger (3), the adsorbent materials supported, respectively, on
the external surface of each fin (13) and on the external surface
of each heat transfer tube (15) are heated. This heating causes
moisture desorption from the adsorbent materials, whereby the
adsorbent materials are regenerated.
[0128] On the other hand, the refrigerant condensed in the first
heat exchanger (3) is decompressed by the expansion valve (11). The
post-decompression refrigerant flows into the second heat exchanger
(5) as a heat carrier for cooling. In the second heat exchanger
(5), heat of adsorption is generated when the adsorbent material
supported on the external surface of each fin (13) and the
adsorbent material supported on the external surface of each heat
transfer tube (15) adsorb moisture. The refrigerant in the second
heat exchanger (5) absorbs the heat of adsorption and then
evaporates. The refrigerant evaporated is directed back to the
compressor (7) and repeats such a circulation.
[0129] In addition, an inflow of room air RA entering through the
second suction opening (21) by drive of the first and second fans
(79) and (77) travels through the second inflow passage (57) and
flows into the second heat exchange chamber (73) from the sixth
opening (31b). In the second heat exchange chamber (73), moisture
in the room air RA is adsorbed by the adsorbent material of the
second heat exchanger (5), whereby the room air RA is dehumidified.
The room air RA thus dehumidified becomes a stream of emission air
EA. The emission air EA exiting the second heat exchange chamber
(73) flows through the first outflow passage (65) by way of the
fourth opening (33d). Then, the emission air EA, after passing
through the first fan (79), is discharged outdoors through the
first outlet opening (23).
[0130] On the other hand, an inflow of outdoor air OA entering
through the first suction opening (19) travels through the first
inflow passage (63) and flows to the first heat exchange chamber
(69) from the first opening (33a). In the first heat exchange
chamber (69), moisture desorbed out of the adsorbent material of
the first heat exchanger (3) is released to the outdoor air OA,
whereby the outdoor air OA is humidified. The outdoor air OA thus
humidified becomes a stream of humidity conditioned air SA. The
humidity conditioned air SA exiting the first heat exchange chamber
(69) flows through the second outflow passage (59) by way of the
seventh opening (31c). Then, the humidity conditioned air SA, after
passing through the second fan (77), is supplied indoors through
the second outlet opening (25).
[0131] Upon completion of the execution of the first operation, the
second operation carried out.
Second Operation
[0132] In the second operation in which the first fan (79) and the
second fan (77) are driven, the process of adsorption in the first
heat exchanger (3) and the process of regeneration in the second
heat exchanger (5) are carried out. In other words, in the second
operation, moisture present in room air RA is adsorbed in the first
heat exchanger (3) and moisture desorbed out of the second heat
exchanger (5) is given to outdoor air OA.
[0133] Referring to FIG. 1(B) and FIG. 15, during the second
operation the second damper (49), the third damper (51), the eighth
damper (41), and the fifth damper (35) are placed in the open state
while, on the other hand, the fourth damper (53), the first damper
(47), the sixth damper (37), and the seventh damper (39) are placed
in the closed state. The first heat exchanger (3) is supplied with
a stream of room air RA. The second heat exchanger (5) is supplied
with a stream of outdoor air OA.
[0134] In addition, the four-way switching valve (9) changes state
to a state shown in FIG. 1 (B). As a result, in the refrigerant
circuit (1) the second heat exchanger (5) functions as a condenser
and the first heat exchanger (3) functions as an evaporator.
[0135] That is, high-temperature, high-pressure refrigerant
expelled out of the compressor (7) flows to the second heat
exchanger (5) as a heat carrier for heating. In the second heat
exchanger (5), the adsorbent materials supported, respectively, on
the external surface of each fin (13) and on the external surface
of each heat transfer tube (15) are heated. This heating causes
moisture desorption from the adsorbent materials, whereby the
adsorbent materials are regenerated.
[0136] On the other hand, the refrigerant condensed in the second
heat exchanger (5) is decompressed by the expansion valve (11). The
post-decompression refrigerant flows to the first heat exchanger
(3) as a heat carrier for cooling. In the first heat exchanger (3),
heat of adsorption is generated when the adsorbent materials
supported, respectively, on the external surface of each fin (13)
and on the external surface of the heat transfer tube (15) adsorb
moisture. The refrigerant in the first heat exchanger (3) absorbs
the heat of adsorption and then evaporates. The refrigerant
evaporated is directed back to the compressor (7) and repeats such
a circulation.
[0137] In addition, an inflow of air RA entering through the second
suction opening (21) by drive of the first and second fans (79) and
(77) travels through the second inflow passage (57). Then, the room
air RA flows to the first heat exchange chamber (69) from the fifth
opening (31a). In the first heat exchange chamber (69), moisture in
the room air RA is adsorbed by the adsorbent material of the first
heat exchanger (3), whereby the room air RA is dehumidified. The
room air RA thus dehumidified becomes a stream of emission air EA.
The emission air EA exiting the first heat exchange chamber (69)
flows through the first outflow passage (65) by way of the third
opening (33c). Then, after passage through the first fan (79), the
emission air EA is discharged outdoors through the first outlet
opening (23).
[0138] On the other hand, an inflow of outdoor air OA entering
through the first suction opening (19) travels through the first
inflow passage (63). Then, the outdoor air OA flows into the second
heat exchange chamber (73) from the second opening (33b). In the
second heat exchange chamber (73), moisture desorbed from the
adsorbent material of the second heat exchanger (5) is released to
the outdoor air OA, whereby the outdoor air OA is humidified. The
outdoor air OA thus humidified becomes a stream of humidity
conditioned air SA. The humidity conditioned air SA exiting the
second heat exchange chamber (73) flows through the second outflow
passage (59) by way of the eighth opening (31d). Then, after
passage through the second fan (77), the humidity conditioned air
SA is supplied indoors through second outlet opening (25).
[0139] Upon completion of the execution of the second operation,
the first operation is carried out again. And, indoor space
humidification is continuously carried out by repetition of the
first operation and the second operation.
Dehumidification Operation in Circulation Mode
[0140] During a dehumidification operation in circulation mode by
the dehumidifier means (80), room air RA is brought in as the first
air and is supplied indoors while, on the other hand, outdoor air
OA is brought in as the second air and is discharged outdoors. The
circulation of refrigerant in the refrigerant circuit (1) is the
same as that in full ventilation mode and the description thereof
is omitted accordingly.
First Operation
[0141] In the first operation, the process of adsorption in the
second heat exchanger (5) and the process of regeneration
(desorption) in the first heat exchanger (3) are carried out. In
other words, in the first operation, moisture present in room air
RA is adsorbed in the second heat exchanger (5) and moisture
desorbed out of the first heat exchanger (3) is given to outdoor
air OA.
[0142] During the first operation, the first damper (47), the third
damper (51), the sixth damper (37), and the eighth damper (41) are
placed in the open state while, on the other hand, the second
damper (49), the fourth damper (53), the fifth damper (35), and the
seventh damper (39) are placed in the closed state. The first heat
exchanger (3) is provided with a stream of outdoor air OA. The
second heat exchanger (5) is provided with a stream of room air
RA.
[0143] An inflow of outdoor air OA entering through the first
suction opening (19) travels through the first inflow passage (63).
Then, the outdoor air OA flows into the first heat exchange chamber
(69) from the first opening (33a). In the first heat exchange
chamber (69), moisture desorbed from the adsorbent material of the
first heat exchanger (3) is released to the outdoor air OA, whereby
the outdoor air OA is humidified. The outdoor air OA thus
humidified becomes a stream of emission air EA. The emission air EA
exiting the first heat exchange chamber (69) flows through the
first outflow passage (65) by way of the third opening (33c). Then,
after passage through the first fan (79), the emission air EA is
discharged outdoors through the first outlet opening (23).
[0144] On the other hand, an inflow of room air RA entering through
the second suction opening (21) travels through the second inflow
passage (57). Then, the room air RA flows into the second heat
exchange chamber (73) from the sixth opening (31b). In the second
heat exchange chamber (73), moisture in the room air RA is adsorbed
by the adsorbent material of the second heat exchanger (5), whereby
the room air RA is dehumidified. The room air RA thus dehumidified
becomes a stream of humidity conditioned air SA. The humidity
conditioned air SA exiting the second heat exchange chamber (73)
flows through the second outflow passage (59) by way of the eighth
opening (31d). Then, after passage through the second fan (77), the
humidity conditioned air SA is supplied indoors through the second
outlet opening (25).
[0145] Upon completion of the execution of the first operation, the
second operation is carried out.
Second Operation
[0146] In the second operation, the process of adsorption in the
first heat exchanger (3) and the process of regeneration in the
second heat exchanger (5) are carried out. In other words, in the
second operation, moisture present in room air RA is adsorbed in
the first heat exchanger (3) and moisture desorbed out of the
second heat exchanger (5) is given to outdoor air OA.
[0147] During the second operation, the second damper (49), the
fourth damper (53), the fifth damper (35), and the seventh damper
(39) are placed in the open state while, on the other hand, the
first damper (47), the third damper (51), the sixth damper (37),
and the eighth damper (41) are placed in the closed state. The
first heat exchanger (3) is provided with a stream of room air RA.
The second heat exchanger (5) is provided with a stream of outdoor
air OA.
[0148] An inflow of outdoor air OA entering through the first
suction opening (19) travels through the first inflow passage (63).
Then, the outdoor air OA flows into the second heat exchange
chamber (73) from the second opening (33b). In the second heat
exchange chamber (73), moisture desorbed from the adsorbent
material of the second heat exchanger (5) is released to the
outdoor air OA, whereby the outdoor air OA is humidified. The
outdoor air OA thus humidified becomes a stream of emission air EA.
The emission air EA exiting the second heat exchange chamber (73)
flows through the first outflow passage (65) by way of the fourth
opening (33d). Then, after passage through the first fan (79), the
emission air EA is discharged outdoors through the first outlet
opening (23).
[0149] On the other hand, an inflow of room air RA entering through
the second suction opening (21) travels through the second inflow
passage (57). Then, the room air RA flows into the first heat
exchange chamber (69) from the fifth opening (31a). In the first
heat exchange chamber (69), moisture in the room air RA is adsorbed
by the adsorbent material of the first heat exchanger (3), whereby
the room air RA is dehumidified. The room air RA thus dehumidified
becomes a stream of humidity conditioned air SA. The humidity
conditioned air SA exiting the first heat exchange chamber (69)
flows through the second outflow passage (59) by way of the seventh
opening (31c). Then, after passage through the second fan (77), the
humidity conditioned air SA is supplied indoors through the second
outlet opening (25).
[0150] After execution of the second operation, the first operation
is carried out again. And, indoor space dehumidification is
continuously carried out by repetition of the first operation and
the second operation.
Humidification Operation in Circulation Mode
[0151] In a humidification operation in circulation mode by the
humidifier means (81), outdoor air OA is brought in as the first
air and is discharged outdoors while, on the other hand, room air
RA is brought in as the second air and is supplied indoors. The
circulation of refrigerant in the refrigerant circuit (1) is the
same as that in full ventilation mode and the description thereof
is omitted accordingly.
First Operation
[0152] In the first operation, the process of adsorption in the
second heat exchanger (5) and the process of regeneration in the
first heat exchanger (3) are carried out. In other words, in the
first operation, moisture present in outdoor air OA is adsorbed in
the second heat exchanger (5) and moisture desorbed out of the
first heat exchanger (3) is given to room air RA.
[0153] During the first operation, the second damper (49), the
fourth damper (53), the fifth damper (35), and the seventh damper
(39) are placed in the open state while, on the other hand, the
first damper (47), the third damper (51), the sixth damper (37),
and the eighth damper (41) are placed in the closed state. The
first heat exchanger (3) is supplied with a stream of room air RA.
The second heat exchanger (5) is supplied with a stream of outdoor
air OA.
[0154] An inflow of room air RA entering through the second suction
opening (21) travels through the second inflow passage (57). Then,
the room air RA flows into the first heat exchange chamber (69)
from the fifth opening (31a). In the first heat exchange chamber
(69), moisture desorbed from the adsorbent material of the first
heat exchanger (3) is released to the room air RA, whereby the room
air RA is humidified. The room air RA thus humidified exits the
first heat exchange chamber (69) and flows through the second
outflow passage (59) by way of the seventh opening (31c). Then,
after passage through the second fan (77), the room air RA is
supplied indoors through the second outlet opening (25).
[0155] On the other hand, an inflow of outdoor air OA entering
through the first suction opening (19) travels through the first
inflow passage (63). Then, the outdoor air OA flows into the second
heat exchange chamber (73) from the second opening (33b). In the
second heat exchange chamber (73), moisture in the outdoor air OA
is adsorbed by the adsorbent material of the second heat exchanger
(5), whereby the outdoor air OA is dehumidified. The outdoor air OA
thus dehumidified becomes a stream of emission air EA. The emission
air EA exiting the second heat exchange chamber (73) flows through
the first outflow passage (65) by way of the fourth opening (33d).
Then, after passage through the first fan (79), the emission air EA
is discharged outdoors through the first outlet opening (23).
[0156] Upon completion of the execution of the first operation, the
second operation is carried out.
Second Operation
[0157] In the second operation, the process of adsorption in the
first heat exchanger (3) and the process of regeneration in the
second heat exchanger (5) are carried out. In other words, in the
second operation, moisture present in outdoor air OA is adsorbed in
the first heat exchanger (3) and moisture desorbed out of the
second heat exchanger (5) is given to room air RA.
[0158] During the second operation, the first damper (47), the
third damper (51), the sixth damper (37), and the eighth damper
(41) are placed in the open state while, on the other hand, the
second damper (49), the fourth damper (53), the fifth damper (35),
and the seventh damper (39) are placed in the closed state. The
second heat exchanger (5) is supplied with a stream of room air RA.
The first heat exchanger (3) is provided with a stream of outdoor
air OA.
[0159] An inflow of room air RA entering through the second suction
opening (21) travels through the second inflow passage (57). Then,
the room air RA flows into the second heat exchange chamber (73)
from the sixth opening (31b). In the second heat exchange chamber
(73), moisture desorbed from the adsorbent material of the second
heat exchanger (5) is released to the room air RA, whereby the room
air RA is humidified. The room air RA thus humidified becomes a
stream of humidity conditioned air SA. The humidity conditioned air
SA exiting the second heat exchange chamber (73) flows through the
second outflow passage (59) by way of the eighth opening (31d).
Then, after passage through the second fan (77), the humidity
conditioned air SA is supplied indoors through the second outlet
opening (25).
[0160] On the other hand, an inflow of outdoor air OA entering
through the first suction opening (19) travels through the first
inflow passage (63). Then, the outdoor air OA flows into the first
heat exchange chamber (69) from the first opening (33a). In the
first heat exchange chamber (69), moisture present in the outdoor
air OA is adsorbed by the adsorbent material of the first heat
exchanger (3), whereby the outdoor air OA is dehumidified. The
outdoor air OA thus dehumidified becomes a stream of emission air
EA. The emission air EA exiting the first heat exchange chamber
(69) flows through the first outflow passage (65) by way of the
third opening (33c). Then, after passage through the first fan
(79), the emission air EA is discharged outdoors through the first
outlet opening (23).
[0161] Upon completion of the execution of the second operation,
the first operation is carried out again. And, indoor space
humidification is continuously carried out by repetition of the
first operation and the second operation.
Performance Comparison
[0162] Referring to FIG. 16, there is shown a psychrometric chart
for comparison between the dehumidification operation of a humidity
controller apparatus of the present embodiment and the
dehumidification operation of a conventional humidity controller
apparatus. Both the humidity controller apparatus of the present
embodiment and the conventional humidity controller apparatus are
capable of dehumidifying a volume of air (about 150 m.sup.3) per
hour.
[0163] Referring to FIG. 17, there is shown a table for comparison
between the data of the dehumidification operation of a humidity
controller apparatus of the present embodiment and the data of the
dehumidification operation of a conventional humidity controller
apparatus. The data shown in the table include information about
the inlet temperature of outdoor air OA and other pieces of
information. In addition, the letters "a"-"h" indicated in FIG. 17
correspond to the letters "a"-"h" indicated in FIG. 16,
respectively.
[0164] As is clear from FIGS. 16 and 17, the amount of
dehumidification of the humidity controller apparatus according to
the present embodiment is greater than the amount of
dehumidification of the conventional humidity controller apparatus.
More specifically, the amount of dehumidification of the humidity
controller apparatus according to the present embodiment is twice
the amount of dehumidification of the conventional humidity
controller apparatus.
Effects of Embodiment 1
[0165] As described above, according to the present embodiment, it
is arranged that adsorbent materials are supported on the external
surface of each heat transfer tube (15) as well as on the external
surface of each fin (13) in the first and second heat exchangers
(3) and (5), thereby allowing integral formation of a
heating/cooling means and an adsorption/desorption means. Such an
arrangement makes it possible to continuously provide
dehumidification and humidification with the omission of an
adsorbent-material container. This results in a reduction in the
number of component parts, thereby making it possible to provide
not only a simplified structure but also a downsized humidity
controller apparatus.
[0166] Furthermore, it is arranged that adsorbent materials are
supported on the external surface of each heat transfer tube (15)
as well as on the external surface of each fin (13) in the first
and second heat exchangers (3) and (5). Such an arrangement makes
it possible to allow the refrigerant to directly cool or heat the
adsorbent materials. As the result of this, the
adsorption/desorption performance of the adsorbent materials is
brought to a maximum. This makes it possible to improve the
efficiency of adsorption/desorption and to provide a downsized
humidity controller apparatus.
[0167] Furthermore, it is arranged that adsorbent materials are
supported on the external surface of the first heat exchanger (3)
as well as on the external surface of second heat exchanger (5).
Such arrangement makes it possible to continuously perform
dehumidification and humidification. As the result of this, it
becomes possible to perform dehumidification and humidification
with high efficiency.
[0168] In addition, it is arranged that: the first heat exchange
chamber (69) and the second heat exchange chamber (73) are
adjacently arranged; the inflow passages (57, 63) and the outflow
passages (59, 65) are arranged in a superimposed manner in the
thickness direction of the first and second heat exchange chambers
(69, 73). Such an arrangement provides a downsized humidity
controller apparatus.
[0169] Besides, the eight dampers (35, . . . , 47, . . . ) are
provided, whereby the direction in which air is distributed is
switched. This makes it possible to achieve a switch in the
distribution direction of air by a simplified structure.
[0170] Furthermore, the first inflow and outflow passages (63, 65)
are arranged symmetrically with the second inflow and outflow
passages (57, 59). As a result of such arrangement, the
distribution resistance is reduced. This makes it possible to
perform dehumidification and other like operation with high
efficiency.
[0171] In addition, the openings (31a-31d, 33a-33d) are positioned
in close proximity to one another in a matrix direction and are
opened/closed by the dampers (35, . . . , 47, . . . ),
respectively. Accordingly, air distribution systems are made simple
in construction and the reduction of size is achieved.
[0172] Furthermore, the vapor compression refrigeration cycle
refrigerant circuit (1) is employed, the adsorption and
regeneration of adsorbent materials are carried out with high
efficiency.
[0173] In addition, a dehumidification or humidification operation
in full ventilation mode is carried out. Therefore, it becomes
possible to perform room dehumidification or humidification while,
simultaneously, performing room ventilation.
[0174] Finally, a dehumidification or humidification operation in
circulation mode is carried out. Therefore, it becomes possible to
perform room dehumidification or humidification by the circulation
of room air. As the result of this, it is possible to control
humidity by inhibiting the variation in room temperature without
the taking-in of outdoor air.
Embodiment 2 of Invention
[0175] Next, a second embodiment of the present invention is
described in detail with reference to the drawings.
[0176] Referring to FIGS. 18-25, there is shown a humidity
controller apparatus of the present embodiment. In the humidity
controller apparatus of the present embodiment, the dehumidifier
means (80) and the humidifier means (81) switchably perform a
dehumidification or a humidification operation in air supply mode
or switchably perform a dehumidification or a humidification
operation in air discharge mode, in addition to the full
ventilation mode and circulation mode.
[0177] The first and second suction openings (19) and (21) of the
present embodiment are each provided with opening/closing means
such as dampers (not shown). And, the first suction opening (19)
and the second suction opening (21) are placed in the open or
closed state by the opening/closing means, and these openings are
configured so as to either permit or prevent the introduction of a
stream of outdoor air OA or a stream of room air RA.
[0178] The dehumidifier means (80) performs a dehumidification
operation in air supply mode in which outdoor air OA is brought in,
moisture in the outdoor air OA is adsorbed by the adsorbent
material of the heat exchanger (3, 5) which becomes an evaporator,
and the outdoor air OA thus converted into a stream of dehumidified
air is supplied indoors while, on the other hand, outdoor air OA is
brought in, moisture desorbed from the adsorbent material of the
heat exchanger (5, 3) which becomes a condenser is released to the
outdoor air OA whereby the adsorbent material of the heat exchanger
(5, 3) is regenerated, and the outdoor air OA converted into a
stream of humidified air is discharged outdoors.
[0179] The humidifier means (81) performs a humidification
operation in air supply mode in which outdoor air OA is brought in,
moisture in the outdoor air OA is adsorbed by the adsorbent
material of the heat exchanger (3, 5) which becomes an evaporator,
and the outdoor air OA thus converted into a stream of dehumidified
air is discharged outdoors while, on the other hand, outdoor air OA
is brought in, moisture desorbed from the adsorbent material of the
heat exchanger (5, 3) which becomes a condenser is released to the
outdoor air OA whereby the adsorbent material of the heat exchanger
(5, 3) is regenerated, and the outdoor air OA thus converted into a
stream of humidified air is supplied indoors.
[0180] The dehumidifier means (80) performs a dehumidification
operation in air discharge mode in which room air RA is brought in,
moisture in the room air RA is adsorbed by the adsorbent material
of the heat exchanger (3, 5) which becomes an evaporator, and the
room air RA thus converted into a stream of dehumidified air is
supplied indoors while, on the other hand, room air RA is brought
in, moisture desorbed from the adsorbent material of the heat
exchanger (5, 3) which becomes a condenser is released to the room
air RA whereby the adsorbent material of the heat exchanger (5, 3)
is regenerated, and the room air RA thus converted into a stream of
humidified air is discharged outdoors.
[0181] The humidifier means (81) performs a humidification
operation in air discharge mode in which room air RA is brought in,
moisture in the room air RA is adsorbed by the adsorbent material
of the heat exchanger (3, 5) which becomes an evaporator, and the
room air RA thus converted into a stream of dehumidified air is
discharged outdoors while, on the other hand, room air RA is
brought in, moisture desorbed from the adsorbent material of the
heat exchanger (5, 3) which becomes a condenser is released to the
room air RA whereby the adsorbent material of the heat exchanger
(5, 3) is regenerated, and the room air RA thus converted into a
stream of humidified air is supplied indoors.
[0182] The refrigerant circuit (1) of the present embodiment is
identical in configuration and refrigerant circulation with the
refrigerant circuit (1) of the first embodiment, and the
description thereof is omitted accordingly.
[0183] FIGS. 18-25(b) correspond to FIG. 3 of the first embodiment.
FIGS. 18-25(A) correspond to FIG. 4 of the first embodiment. FIGS.
18-25(C) correspond to FIG. 5 of the first embodiment. And, in
FIGS. 18-25(A) and (C), when the first to eight dampers (47-41) are
placed in the closed state, they are marked with diagonal lines
and, when placed in the open state, they have no marks.
Dehumidification Operation in Air Supply Mode
[0184] During a dehumidification operation in air supply mode by
the dehumidifier means (80), the first suction opening (19) is
opened while, on the other hand, the second suction opening (21) is
closed (see FIGS. 18 and 19). Outdoor air OA is brought in as the
first air and as the second air, wherein a portion of the outdoor
air OA is supplied indoors while, simultaneously, the remaining
portion of the outdoor air OA is discharged outdoors.
First Operation
[0185] Referring to FIG. 18, in the first operation, the process of
adsorption in the second heat exchanger (5) and the process of
regeneration (desorption) in the first heat exchanger (3) are
carried out. In other words, in the first operation, moisture
present in one portion of outdoor air OA is adsorbed in the second
heat exchanger (5) and moisture desorbed from the first heat
exchanger (3) is given to the remaining portion of the outdoor air
OA.
[0186] During the first operation, the first damper (47), the
second damper (49), the third damper (51), and the eighth damper
(41) are placed in the open state while, on the other hand, the
fourth damper (53), the fifth damper (35), the sixth damper (37),
and the seventh damper (39) are placed in the closed state. One
portion of outdoor air OA is supplied to the first heat exchanger
(3). The remaining portion of the outdoor air OA is supplied to the
second heat exchanger (5).
[0187] An inflow of outdoor air OA entering through the first
suction opening (19) travels through the first inflow passage (63),
wherein one portion of the outdoor air OA flows into the second
heat exchange chamber (73) from the second opening (33b). In the
second heat exchange chamber (73), moisture in the outdoor air OA
is adsorbed by the adsorbent material of the second heat exchanger
(5), whereby the outdoor air OA is dehumidified. The outdoor air OA
thus dehumidified becomes a stream of humidity conditioned air SA.
The humidity conditioned air SA exiting the second heat exchange
chamber (73) flows through the second outflow passage (59) by way
of the eighth opening (31d). Then, after passage through the second
fan (77), the humidity conditioned air SA is supplied indoors
through the second outlet opening (25).
[0188] On the other hand, the remaining portion of the outdoor air
OA entering through the first suction opening (19) flows into the
first heat exchange chamber (69) from the first opening (33a). In
the first heat exchange chamber (69), moisture desorbed from the
adsorbent material of the first heat exchanger (3) is released to
the outdoor air OA, whereby the outdoor air OA is humidified. The
outdoor air OA thus converted into humidified air becomes a stream
of emission air EA. The emission air EA exiting the first heat
exchange chamber (69) flows through the first outflow passage (65)
by way of the third opening (33c). Then, after passage through the
first fan (79), the emission air EA is discharged outdoors through
the first outlet opening (23).
[0189] Upon completion of the execution of the first operation, the
second operation is carried out.
Second Operation
[0190] Referring to FIG. 19, in the second operation, the process
of adsorption in the first heat exchanger (3) and the process of
regeneration in the second heat exchanger (5) are carried out. In
other words, in the second operation, moisture present in one
portion of outdoor air OA is adsorbed in the first heat exchanger
(3) and moisture desorbed out of the second heat exchanger (5) is
given to the remaining portion of the outdoor air OA.
[0191] During the second operation, the first damper (47), the
second damper (49), the fourth damper (53), and the seventh damper
(39) are placed in the open state while, on the other hand, the
third damper (51), the fifth damper (35), the sixth damper (37),
and the eighth damper (41) are placed in the closed state. One
portion of outdoor air OA is supplied to the first heat exchanger
(3). The remaining portion of the outdoor air OA is supplied to the
second heat exchanger (5).
[0192] An inflow of outdoor air OA entering through the first
suction opening (19) travels through the first inflow passage (63),
wherein one portion of the outdoor air OA flows into the first heat
exchange chamber (69) from the first opening (33a). In the first
heat exchange chamber (69), moisture present in the outdoor air OA
is adsorbed by the adsorbent material of the first heat exchanger
(3), whereby the outdoor air OA is dehumidified. The outdoor air OA
thus converted into dehumidified air becomes a stream of humidity
conditioned air SA. The humidity conditioned air SA exiting the
first heat exchange chamber (69) flows through the second outflow
passage (59) by way of the seventh opening (31c). Then, after
passage through the second fan (77), the humidity conditioned air
SA is supplied indoors through the second outlet opening (25).
[0193] On the other hand, the remaining portion of the outdoor air
OA entering through the first suction opening (19) flows into the
second heat exchange chamber (73) from the second opening (33b). In
the second heat exchange chamber (73), moisture desorbed from the
adsorbent material of the second heat exchanger (5) is released to
the outdoor air OA, whereby the outdoor air OA is humidified. The
outdoor air OA thus converted into humidified air becomes a stream
of emission air EA. The emission air EA exiting the second heat
exchange chamber (73) flows through the first outflow passage (65)
by way of the fourth opening (33d). Then, after passage through the
first fan (79), the emission air EA is discharged outdoors through
the first outlet opening (23).
[0194] After execution of the second operation, the first operation
is carried out again. And, indoor space dehumidification is
continuously carried out by repetition of the first operation and
the second operation.
Humidification Operation in Air Supply Mode
[0195] During a humidification operation in air supply mode by the
humidifier means (81), the first suction opening (19) is opened
while, on the other hand, the second suction opening (21) is closed
(see FIGS. 20 and 21), as in the dehumidification operation.
Outdoor air OA is brought in to serve as the first air and as the
second air. One portion of the outdoor air OA is supplied indoors
while, simultaneously, the remaining portion of the outdoor air OA
is discharged outdoors.
First Operation
[0196] Referring to FIG. 20, in the first operation, the process of
adsorption in the second heat exchanger (5) and the process of
regeneration (desorption) in the first heat exchanger (3) are
carried out. In other words, in the first operation, moisture
present in one portion of outdoor air OA is adsorbed in the second
heat exchanger (5) and moisture desorbed from the first heat
exchanger (3) is given to the remaining portion of the outdoor air
OA.
[0197] During the first operation, the first damper (47), the
second damper (49), the fourth damper (53), and the seventh damper
(39) are placed in the open state while, on the other hand, the
third damper (51), the fifth damper (35), the sixth damper (37),
and the eighth damper (41) are placed in the closed state. One
portion of outdoor air OA is supplied to the first heat exchanger
(3). The remaining portion of the outdoor air OA is supplied to the
second heat exchanger (5).
[0198] An inflow of outdoor air OA entering through the first
suction opening (19) travels through the first inflow passage (63),
wherein one portion of the outdoor air OA flows into the first heat
exchange chamber (69) from the first opening (33a). In the first
heat exchange chamber (69), moisture desorbed from the adsorbent
material of the first heat exchanger (3) is released to the outdoor
air OA, whereby the outdoor air OA is humidified. The outdoor air
OA thus converted into humidified air becomes a stream of humidity
conditioned air SA. The humidity conditioned air SA exiting the
first heat exchange chamber (69) flows through the second outflow
passage (59) by way of the seventh opening (31c). Then, after
passage through the second fan (77), the humidity conditioned air
SA is supplied indoors through the second outlet opening (25).
[0199] On the other hand, the remaining portion of the outdoor air
OA entering through the first suction opening (19) flows into the
second heat exchange chamber (73) from the second opening (33b). In
the second heat exchange chamber (73), moisture present in the
outdoor air OA is adsorbed by the adsorbent material of the second
heat exchanger (5), whereby the outdoor air OA is dehumidified. The
outdoor air OA thus converted into dehumidified air becomes a
stream of emission air EA. The emission air EA exiting the second
heat exchange chamber (73) flows through the first outflow passage
(65) by way of the fourth opening (33d). Then, after passage
through the first fan (79), the emission air EA is discharged
outdoors through the first outlet opening (23).
[0200] Upon completion of the execution of the second operation,
the first operation is carried out again.
Second Operation
[0201] Referring to FIG. 21, in the second operation, the process
of adsorption in the first heat exchanger (3) and the process of
regeneration in the second heat exchanger (5) are carried out. In
other words, in the second operation, moisture present in one
portion of outdoor air OA is adsorbed in the first heat exchanger
(3) and moisture desorbed from the second heat exchanger (5) is
given to the remaining portion of the outdoor air OA.
[0202] During the second operation, the first damper (47), the
second damper (49), the third damper (51), and the eighth damper
(41) are placed in the open state while, on the other hand, the
fourth damper (53), the fifth damper (35), the sixth damper (37),
and the seventh damper (39) are placed in the closed state. One
portion of outdoor air OA is supplied to the first heat exchanger
(3). The remaining portion of the outdoor air OA is supplied to the
second heat exchanger (5).
[0203] An inflow of outdoor air OA entering through the first
suction opening (19) travels through the first inflow passage (63),
wherein one portion of the outdoor air OA flows into the second
heat exchange chamber (73) from the second opening (33b). In the
second heat exchange chamber (73), moisture desorbed from the
adsorbent material of the second heat exchanger (5) is released to
the outdoor air OA, whereby the outdoor air OA is humidified. The
outdoor air OA thus converted into humidified air becomes a stream
of humidity conditioned air SA. The humidity conditioned air SA
exiting the second heat exchange chamber (73) flows through the
second outflow passage (59) by way of the eighth opening (31d).
Then, after passage through the second fan (77), the humidity
conditioned air SA is supplied indoors through the second outlet
opening (25).
[0204] On the other hand, the remaining portion of the outdoor air
OA entering through the first suction opening (19) flows into the
first heat exchange chamber (69) from the first opening (33a). In
the first heat exchange chamber (69), moisture in the outdoor air
OA is adsorbed by the adsorbent material of the first heat
exchanger (3), whereby the outdoor air OA is dehumidified. The
outdoor air OA thus converted into dehumidified air becomes a
stream of emission air EA. The emission air EA exiting the first
heat exchange chamber (69) flows through the first outflow passage
(65) by way of the third opening (33c). Then, after passage through
the first fan (79), the emission air EA is discharged outdoors
through the first outlet opening (23).
[0205] After execution of the second operation, the first operation
is carried out again. And, indoor space humidification is
continuously carried out by repetition of the first operation and
the second operation.
Dehumidification Operation in Air Discharge Mode
[0206] During a dehumidification operation in air discharge mode by
the dehumidifier means (80), the second suction opening (21) is
opened while, on the other hand, the first suction opening (19) is
closed (see FIGS. 22 and 23). Room air RA is brought in to serve as
the first air and as the second air. One portion of the room air RA
is supplied indoors while, simultaneously, the remaining portion of
the room air RA is discharged outdoors.
First Operation
[0207] Referring to FIG. 22, in the first operation, the process of
adsorption in the second heat exchanger (5) and the process of
regeneration (desorption) in the first heat exchanger (3) are
carried out. In other words, in the first operation, moisture
present in one portion of room air RA is adsorbed in the second
heat exchanger (5) and moisture desorbed from the first heat
exchanger (3) is given to the remaining portion of the room air
RA.
[0208] During the first operation, the third damper (51), the fifth
damper (35), the sixth damper (37), and the eighth damper (41) are
placed in the open state while, on the other hand, the first damper
(47), the second damper (49), the fourth damper (53), and the
seventh damper (39) are placed in the closed state. And, one
portion of room air RA is supplied to the first heat exchanger (3).
The remaining portion of the room air RA is supplied to the second
heat exchanger (5).
[0209] An inflow of room air RA entering through the second suction
opening (21) travels through the second inflow passage (57),
wherein one portion of the room air RA flows into the second heat
exchange chamber (73) from the sixth opening (31b). In the second
heat exchange chamber (73), moisture present in the room air RA is
adsorbed by the adsorbent material of the second heat exchanger
(5), whereby the room air RA is dehumidified. The room air RA thus
converted into dehumidified air becomes a stream of humidity
conditioned air SA. The humidity conditioned air SA exiting the
second heat exchange chamber (73) flows through the second outflow
passage (59) by way of the eighth opening (31d). Then, after
passage through the second fan (77), the humidity conditioned air
SA is supplied indoors through the second outlet opening (25).
[0210] On the other hand, the remaining portion of the room air RA
entering through the second suction opening (21) flows into the
first heat exchange chamber (69) from the fifth opening (31a). In
the first heat exchange chamber (69), moisture desorbed from the
adsorbent material of the first heat exchanger (3) is released to
the room air RA, whereby the room air RA is humidified. The room
air RA thus converted into humidified air becomes a stream of
emission air EA. The emission air EA exiting the first heat
exchange chamber (69) flows through the first outflow passage (65)
by way of the third opening (33c). Then, after passage through the
first fan (79), the emission air EA is discharged outdoors through
the first outlet opening (23).
[0211] Upon completion of the execution of the second operation,
the first operation is carried out again.
Second Operation
[0212] Referring to FIG. 23, in the second operation, the process
of adsorption in the first heat exchanger (3) and the process of
regeneration in the second heat exchanger (5) are carried out. In
other words, in the second operation, moisture present in one
portion of room air RA is adsorbed in the first heat exchanger (3)
and moisture desorbed from the second heat exchanger (5) is given
to the remaining portion of the room air RA.
[0213] During the second operation, the first suction opening (19)
is closed. In addition, the fourth damper (53), the fifth damper
(35), the sixth damper (37), and the seventh damper (39) are placed
in the open state while, on the other hand, the first damper (47),
the second damper (49), the third damper (51), and the eighth
damper (41) are placed in the closed state. One portion of room air
RA is supplied to the first heat exchanger (3). The remaining
portion of the room air RA is supplied to the second heat exchanger
(5).
[0214] An inflow of room air RA entering through the second suction
opening (21) travels through the second inflow passage (57),
wherein one portion of the room air RA flows into the first heat
exchange chamber (69) from the fifth opening (31a). In the first
heat exchange chamber (69), moisture in the room air RA is adsorbed
by the adsorbent material of the first heat exchanger (3), whereby
the room air RA is dehumidified. The room air RA thus converted
into dehumidified air becomes a stream of humidity conditioned air
SA. The humidity conditioned air SA exiting the first heat exchange
chamber (69) flows through the second outflow passage (59) by way
of the seventh opening (31c). Then, after passage through the
second fan (77), the humidity conditioned air SA is supplied
indoors through the second outlet opening (25).
[0215] On the other hand, the remaining portion of the room air RA
entering through the second suction opening (21) flows into the
second heat exchange chamber (73) from the sixth opening (31b). In
the second heat exchange chamber (73), moisture desorbed from the
adsorbent material of the second heat exchanger (5) is released to
the room air RA, whereby the room air RA is humidified. The room
air RA thus converted into humidified air becomes a stream of
emission air EA. The emission air EA exiting the second heat
exchange chamber (73) flows through the first outflow passage (65)
by way of the fourth opening (33d). Then, after passage through the
first fan (79), the emission air EA is discharged outdoors through
the first outlet opening (23).
[0216] After execution of the second operation, the first operation
is carried out again. And, indoor space dehumidification is
continuously carried out by repetition of the first operation and
the second operation.
Humidification Operation in Air Discharge Mode
[0217] During a humidification operation in air discharge mode by
the humidifier means (81), the second suction opening (21) is
opened while, on the other hand, the first suction opening (19) is
closed (see FIGS. 24 and 25), as in the dehumidification operation.
Room air RA is brought in to serve as the first air and as the
second air. One portion of the room air RA is supplied indoors
while, simultaneously, the remaining portion of the room air RA is
discharged outdoors.
First Operation
[0218] Referring to FIG. 24, in the first operation, the process of
adsorption in the second heat exchanger (5) and the process of
regeneration (desorption) in the first heat exchanger (3) are
carried out. In other words, in the first operation, moisture
present in one portion of room air RA is adsorbed in the second
heat exchanger (5) and moisture desorbed from the first heat
exchanger (3) is given to the remaining portion of the room air
RA.
[0219] During the first operation, the fourth damper (53), the
fifth damper (35), the sixth damper (37), and the seventh damper
(39) are placed in the open state while, on the other hand, the
first damper (47), the second damper (49), the third damper (51),
and the eighth damper (41) are placed in the closed state. One
portion of room air RA is supplied to the first heat exchanger (3).
The remaining portion of the room air RA is supplied to the second
heat exchanger (5).
[0220] An inflow of room air RA entering through the second suction
opening (21) travels through the second inflow passage (57),
wherein one portion of the room air RA flows into the first heat
exchange chamber (69) from the fifth opening (31a). In the first
heat exchange chamber (69), moisture desorbed from the adsorbent
material of the first heat exchanger (3) is released to the room
air RA, whereby the room air RA is humidified. The room air RA thus
converted into humidified air becomes a stream of humidity
conditioned air SA. The humidity conditioned air SA exiting the
first heat exchange chamber (69) flows through the second outflow
passage (59) by way of the seventh opening (31c). Then, after
passage through the second fan (77), the humidity conditioned air
SA is supplied indoors through the second outlet opening (25).
[0221] On the other hand, the remaining portion of the room air RA
entering through the second suction opening (21) flows into the
second heat exchange chamber (73) from the sixth opening (31b). In
the second heat exchange chamber (73), moisture present in the room
air RA is adsorbed by the adsorbent material of the second heat
exchanger (5), whereby the room air RA is dehumidified. The room
air RA thus converted into dehumidified air becomes a stream of
emission air EA. The emission air EA exiting the second heat
exchange chamber (73) flows through the first outflow passage (65)
by way of the fourth opening (33d). Then, after passage through the
first fan (79), the emission air EA is discharged outdoors through
the first outlet opening (23).
[0222] Upon completion of the execution of the first operation, the
second operation is carried out.
Second Operation
[0223] Referring now to FIG. 25, in the second operation, the
process of adsorption in the first heat exchanger (3) and the
process of regeneration in the second heat exchanger (5) are
carried out. In other words, in the second operation, moisture
present in one portion of room air RA is adsorbed in the first heat
exchanger (3) and moisture desorbed from the second heat exchanger
(5) is given to the remaining portion of the room air RA.
[0224] During the second operation, the third damper (51), the
fifth damper (35), the sixth damper (37), and the eighth damper
(41) are placed in the open state while, on the other hand, the
first damper (47), the second damper (49), the fourth damper (53),
and the seventh damper (39) are placed in the closed state. And,
one portion of room air RA is supplied to the first heat exchanger
(3). The remaining portion of the room air RA is supplied to the
second heat exchanger (5).
[0225] An inflow of room air RA entering through the second suction
opening (21) travels through the second inflow passage (57),
wherein one portion of the room air RA flows into the second heat
exchange chamber (73) from the sixth opening (31b). In the second
heat exchange chamber (73), moisture desorbed from the adsorbent
material of the second heat exchanger (5) is released to the room
air RA, whereby the room air RA is humidified. The room air RA thus
converted into humidified air becomes a stream of humidity
conditioned air SA. The humidity conditioned air SA exiting the
second heat exchange chamber (73) flows through the second outflow
passage (59) by way of the eighth opening (31d). Then, after
passage through the second fan (77), the humidity conditioned air
SA is supplied indoors through the second outlet opening (25).
[0226] On the other hand, the remaining portion of the room air RA
entering through the second suction opening (21) flows into the
first heat exchange chamber (69) from the fifth opening (31a). In
the first heat exchange chamber (69), moisture in the room air RA
is adsorbed by the adsorbent material of the first heat exchanger
(3), whereby the room air RA is dehumidified. The room air RA thus
converted into dehumidified air becomes a stream of emission air
EA. The emission air EA exiting the first heat exchange chamber
(69) flows through the first outflow passage (65) by way of the
third opening (33c). Then, after passage through the first fan
(79), the emission air EA is discharged outdoors through the first
outlet opening (23).
[0227] After execution of the second operation, the first operation
is carried out again. And, indoor space humidification is
continuously carried out by repetition of the first operation and
the second operation.
[0228] Accordingly, in accordance with the second embodiment,
dehumidification or humidification is carried out in air supply
mode, thereby making it possible to perform indoor space
dehumidification or humidification by only the taking-in of outdoor
air OA.
[0229] In addition, dehumidification or humidification is carried
out in air discharge mode, thereby making it possible to perform
indoor space dehumidification or humidification by only the
discharging of room air RA.
Other Embodiments of Invention
[0230] In the foregoing embodiments, in each of the first heat
exchanger (3) and the second heat exchanger (5), adsorbent
materials are supported on the external surface of each fin (13) as
well as on the external surface of each heat transfer tube (15). In
the present invention, however, it may be arranged that adsorbent
materials are supported on at least either one of the external
surface of the fin (13) and the external surface of the heat
transfer tube (15).
[0231] In addition, in the foregoing embodiments, adsorbent
materials are supported on both the first heat exchanger (3) and
the second heat exchanger (5); however, it may be arranged that
adsorbent material is supported on one of the heat exchangers,
i.e., only on the first heat exchanger (3). In this case, moisture
adsorption and moisture desorption (adsorbent material
regeneration) take place at intervals.
[0232] And, also in this case, both a moisture absorbing means and
a moisture releasing means are provided.
[0233] In the above case, the moisture absorbing means is
configured to switch the circulation of refrigerant in the
refrigerant circuit (1) and the distribution of air by the dampers
(47-53, 35-41), whereby refrigerant is condensed in the second heat
exchanger (5) while, simultaneously, refrigerant is evaporated in
the first heat exchanger (3) so that moisture present in a stream
of air flowing through the first heat exchanger (3) is adsorbed by
the adsorbent material of the first heat exchanger (3).
[0234] In addition, the moisture releasing means is configured to
switch the circulation of refrigerant in the refrigerant circuit
(1) and the distribution of air by the dampers (47-53, 35-41),
whereby refrigerant is condensed in the first heat exchanger (3)
while, simultaneously, refrigerant is evaporated in the second heat
exchanger (5) so that moisture is released to a stream of air
flowing through the first heat exchanger (3) for the purpose of
adsorbent-material regeneration.
[0235] Furthermore, the present invention is not limited to the
arrangement of each of the embodiments shown in plan view (see FIG.
3). That is, the orientation of arrangement is not limited to that
of the embodiments.
[0236] In addition, in the above-described embodiments, the first
fan (79) is connected to the first outlet opening (23).
Alternatively, the first fan (79) may be provided so as to
communicate with the first suction opening (19). In addition, the
second fan (77) is connected to the second outlet opening (25).
Alternatively, the second fan (77) may be provided so as to
communicate with the second suction opening (21). In other words,
the first fan (79) and the second fan (77) may be of the
draw-through type or the forced draft type.
[0237] Furthermore, the first embodiment is switchable between full
ventilation mode and circulation mode and the second embodiment is
switchable between full ventilation mode, circulation mode, air
supply mode, and air discharge mode. Alternatively, it may be
arranged that the dehumidifier means (80) (the humidifier means
(81)) of the present invention performs at least any one of full
ventilation mode, circulation mode, air supply mode, and air
discharge mode.
[0238] Finally, it may be arranged in the present invention that
either one of the dehumidifier means (80) and the humidifier means
(81) is provided.
INDUSTRIAL APPLICABILITY
[0239] As has been described above, the humidity controller
apparatuses of the present invention are useful in dehumidifying or
humidifying an indoor space or the like and are particularly suited
for the integral formation of an adsorbent material and a heat
exchange means.
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