U.S. patent application number 13/002053 was filed with the patent office on 2011-05-19 for humidity control apparatus.
Invention is credited to Kenkichi Kagawa, Kanji Motegi, Tsunahiro Ohdou, Toshio Tanaka.
Application Number | 20110114740 13/002053 |
Document ID | / |
Family ID | 41506886 |
Filed Date | 2011-05-19 |
United States Patent
Application |
20110114740 |
Kind Code |
A1 |
Tanaka; Toshio ; et
al. |
May 19, 2011 |
HUMIDITY CONTROL APPARATUS
Abstract
A dividing member (25) divides an inside of a storage tank (41)
into a humidification region (31) and a supply region (32), and a
space above the supply region (32) is covered with a covering
member (26). In water, the dividing member (25) defines a
communication path (33) through which the supply region (32) and
the humidification region (31) communicate with each other. Active
species generated in an electrical discharge unit (51) are supplied
to the supply region (32) to purify the water. A release of the
supplied active species to outside is reduced by the dividing
member (25) and the covering member (26), and the water in the
supply region (32), which is purified by the active species flows
into the humidification region (31) through the communication path
(33).
Inventors: |
Tanaka; Toshio; (Osaka,
JP) ; Ohdou; Tsunahiro; (Osaka, JP) ; Motegi;
Kanji; (Osaka, JP) ; Kagawa; Kenkichi; (Osaka,
JP) |
Family ID: |
41506886 |
Appl. No.: |
13/002053 |
Filed: |
July 10, 2009 |
PCT Filed: |
July 10, 2009 |
PCT NO: |
PCT/JP2009/003237 |
371 Date: |
December 30, 2010 |
Current U.S.
Class: |
236/44A ;
165/222 |
Current CPC
Class: |
F24F 6/16 20130101; F24F
6/08 20130101; F24F 2221/34 20130101; F24F 6/00 20130101; F24F
2006/006 20130101 |
Class at
Publication: |
236/44.A ;
165/222 |
International
Class: |
F24F 6/00 20060101
F24F006/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 10, 2008 |
JP |
2008-180083 |
Sep 30, 2008 |
JP |
2008-255026 |
Claims
1. A humidity control apparatus including a storage tank (41) for
storing water, and a humidification mechanism (43) for humidifying
air by imparting the water in the storage tank (41) to air,
comprising: an electrical discharge unit (51) configured to
generate electrical discharge to generate active species; a
dividing member (25) which divides an inside of the storage tank
(41) into a humidification region (31) where the humidification
mechanism (43) is arranged to impart the water to air, and a supply
region (32) to which the active species generated in the electrical
discharge unit (51) are supplied to purify the water, so that the
humidification region (31) and the supply region (32) are arranged
along a horizontal direction; and which defines a communication
path (33) in the water, through which the water purified in the
supply region (32) flows into the humidification region (31); and a
covering member (26) configured to cover a space above the supply
region (32) of the storage tank (41).
2. The humidity control apparatus of claim 1, wherein the active
species generated in the electrical discharge unit (51) are
supplied to a space above a water surface of the water stored in
the supply region (32) of the storage tank (41), which is covered
with the covering member (26).
3. The humidity control apparatus of claim 2, further comprising: a
gas-liquid mixing mechanism (66) for mixing air containing the
active species supplied to the supply region (32) with the water
stored in the supply region (32).
4. The humidity control apparatus of claim 1, further comprising:
an air blowing mechanism (64) for sending air to the electrical
discharge unit (51) to supply air containing the active species to
the supply region (32) of the storage tank (41).
5. The humidity control apparatus of claim 4, wherein the covering
member (26) includes an exhaust port (34) through which air is
exhausted, which contains the active species supplied to the supply
region (32), and accumulated in the space above the water surface
of the water stored in the supply region (32); and the covering
member (26) further includes an air circulation path (65) in which
air containing the accumulated active species circulates back to
the air blowing mechanism (64) through the exhaust port (34).
6. The humidity control apparatus of claim 1, wherein the covering
member (26) includes an exhaust port (34) through which air is
exhausted, which contains the active species supplied to the supply
region (32), and accumulated in the space above the water surface
of the water stored in the supply region (32); and the covering
member (26) further includes an ozone decomposition catalyst (37)
for decomposing an ozone component contained in the active species,
which is arranged on the exhaust port (34).
7. The humidity control apparatus of claim 1, further comprising: a
mixing mechanism (35) for mixing the water in the storage tank (41)
to forcibly send the water of the supply region (32) to the
humidification region (31) through the communication path (33).
8. The humidity control apparatus of claim 1, wherein an electrical
discharge process is intermittently performed by the electrical
discharge unit (51).
9. The humidity control apparatus of claim 4, wherein an air
blowing process is intermittently performed by the air blowing
mechanism (64).
Description
TECHNICAL FIELD
[0001] The present invention relates to a humidity control
apparatus.
BACKGROUND ART
[0002] Conventionally, a humidity control apparatus has been
broadly known, which includes a humidification unit configured to
impart water in a water tank to air. An example of the humidity
control apparatus of this type includes a humidity control
apparatus in which ozone gas is supplied to a water tank, and the
ozone gas comes into contact with water to remove bacteria and
harmful substances in the water, thereby purifying the water (see,
e.g., Patent Document 1).
[0003] In a humidity control apparatus disclosed in Patent Document
1, an ozone gas outlet is formed in a bottom section of a water
tank, and a porous plate with similarly-sized pores is provided
above the outlet. In the humidity control apparatus, air bubbles of
ozone gas discharged through the outlet in the bottom section pass
through the similarly-sized pores of the porous plate, and
therefore the air bubbles of the ozone gas are uniformly diffused
in the water tank. Consequently, water is purified across the
entire water tank.
[0004] However, in the humidity control apparatus disclosed in
Patent Document 1, the air bubbles of the ozone gas passing through
the pores of the porous plate rise due to buoyant force, and then
reach a water surface shortly. This results in a release of the
remaining ozone gas which does not react with the water, to air.
Thus, there is a possibility that, when using the humidity control
apparatus for a long period of time in a closed room, an ozone
concentration in the room exceeds its environmental limit.
[0005] As in a water purification apparatus disclosed in Patent
Document 2, a part of ozone gas diffused in water, which is not
dissolved in the water is collected by a collection container. The
collected ozone gas is decomposed by an ozone decomposition
catalyst, and then is released to air.
[0006] Citation List
[0007] Patent Document
[0008] PATENT DOCUMENT 1: Japanese Patent Publication No.
2001-153409
[0009] PATENT DOCUMENT 2: Japanese Patent Publication No.
H06-178989
SUMMARY OF THE INVENTION
Technical Problem
[0010] However, in the purification apparatus described in Patent
Document 2, there is a possibility that, when changing a water
level in a water tank, the ozone gas cannot be fully collected.
Specifically, in the purification apparatus, the water level in the
water tank is substantially constant, and an ozone gas outlet is
constantly soaked in water. Ozone gas which is discharged through
the outlet, and which is not dissolved in the water is collected by
the collection container when rising to a water surface due to
buoyant force. However, the water in the water tank of the humidity
control apparatus is used for air humidification, and then the
water level is gradually lowered. As a result, the outlet is
positioned above the water surface. When discharging the ozone gas
through the outlet in such a state, the ozone gas is diffused in
air, and therefore a part of the ozone gas discharged through the
outlet is released to air without being collected by the collection
container.
[0011] In order to reduce or prevent the release of the ozone gas
to air, it is required to arrange the ozone decomposition catalyst
for decomposing the ozone gas on an upstream or downstream side of
an air blowing fan; and the ozone decomposition catalyst is
required, which has a broad surface area so that an air path on the
upstream or downstream side of the air blowing fan is covered.
Thus, a disadvantage in cost is caused.
[0012] Since humidified air containing moisture passes through the
ozone decomposition catalyst, it is required to select and use a
water-resistant catalyst, resulting in an increase in cost.
Further, the configuration is employed, in which air sent by the
air blowing fan passes through the catalyst. Consequently, there is
a possibility that a pressure loss is caused to degrade air
distribution performance.
[0013] The present invention has been made in view of the
foregoing, and it is an object of the present invention to reduce a
release of active species to air, and to efficiently purify water
in a storage tank.
Solution to the Problem
[0014] In order to accomplish the foregoing object, in the present
invention, a dividing member divides an inside of a storage tank
into a supply region and a humidification region, and the supply
region is covered with a covering member. Active species are
supplied only to the supply region.
[0015] Specifically, the present invention is intended for a
humidity control apparatus including a storage tank (41) for
storing water, and a humidification mechanism (43) for humidifying
air by imparting the water in the storage tank (41) to air. The
followings are provided as solutions to the problem.
[0016] That is, a first aspect of the invention is intended for the
humidity control apparatus including an electrical discharge unit
(51) configured to generate electrical discharge to generate active
species; a dividing member (25) which divides an inside of the
storage tank (41) into a humidification region (31) where the
humidification mechanism (43) is arranged to impart the water to
air, and a supply region (32) to which the active species generated
in the electrical discharge unit (51) are supplied to purify the
water, so that the humidification region (31) and the supply region
(32) are arranged along a horizontal direction; and which defines a
communication path (33) in the water, through which the water
purified in the supply region (32) flows into the humidification
region (31); and a covering member (26) configured to cover a space
above the supply region (32) of the storage tank (41).
[0017] In the first aspect of the invention, the electrical
discharge unit (51) generates the electrical discharge to generate
the active species. The active species are supplied to the supply
region (32) in the storage tank divided by the dividing member
(25). A release of the active species supplied to the supply region
(32) to an outside of the storage tank (41) is reduced by the
dividing member (25) and the covering member (26), and therefore
the water stored in the supply region (32) is purified. The water
purified by the active species flows from the supply region (32) to
the humidification region (31) through the communication path
(33).
[0018] As described above, the inside of the storage tank (41) is
divided into the supply region (32) and the humidification region
(31), and the active species are supplied only to the supply region
(32). Thus, the release of the active species to outside is reduced
by the dividing member (25) and the covering member (26).
Consequently, such a state is preferable because an ozone component
etc. contained in the active species do not cause an ozone
concentration in a room, which exceeds its environmental limit even
if the humidity control apparatus is used for a long period of time
in the closed room.
[0019] Since the active species are not released to the outside of
the storage tank (41), a catalyst is not necessarily arranged on an
upstream or downstream side of an air blowing fan in order to
decompose and remove the active species. Thus, degradation of air
distribution performance due to a pressure loss can be reduced or
prevented, and it is advantageous in cost reduction of the
catalyst.
[0020] The water in the supply region (32), which is purified by
the supplied active species flows into the humidification region
(31) through the communication path (33). Thus, bacteria and
harmful substances in the water are removed, thereby efficiently
purifying the water across the entire storage tank (41).
[0021] A second aspect of the invention is intended for the
humidity control apparatus of the first aspect of the invention, in
which the active species generated in the electrical discharge unit
(51) are supplied to a space above a water surface of water stored
in the supply region (32) of the storage tank (41), which is
covered with the covering member (26).
[0022] In the second aspect of the invention, the active species
are supplied from the electrical discharge unit (51) to the space
above the water surface of the water stored in the supply region
(32) covered with the covering member (26). Thus, as compared to a
case where the active species are directly supplied into the water
in the supply region (32), e.g., a pump having a lower discharge
pressure can be used to sent the active species to the supply
region (32). Consequently, it is advantageous in the cost reduction
and life extension for the entire apparatus.
[0023] A third aspect of the invention is intended for the humidity
control apparatus of the second aspect of the invention, which
further includes a gas-liquid mixing mechanism (66) for mixing air
containing the active species supplied to the supply region (32)
with the water stored in the supply region (32).
[0024] In the third aspect of the invention, the gas-liquid mixing
mechanism (66) mixes the air containing the active species with the
stored water in the supply region (32). In such a manner, the air
containing the active species supplied to the supply region (32) is
mixed with the water to efficiently remove bacteria and harmful
substances in the water.
[0025] Consequently, water purification can be facilitated.
[0026] A fourth aspect of the invention is intended for the
humidity control apparatus of any one of the first to third aspects
of the invention, which further includes an air blowing mechanism
(64) for sending air to the electrical discharge unit (51) to
supply air containing the active species to the supply region (32)
of the storage tank (41).
[0027] In the fourth aspect of the invention, the air blowing
mechanism (64) sends air to the electrical discharge unit (51).
Then, the air containing the active species is supplied to the
supply region (32) of the storage tank (41). This ensures that the
active species generated in the electrical discharge unit (51) are
sent to the supply region (32).
[0028] A fifth aspect of the invention is intended for the humidity
control apparatus of the fourth aspect of the invention, in which
the covering member (26) includes an exhaust port (34) through
which air is exhausted, which contains the active species supplied
to the supply region (32), and accumulated in the space above the
water surface of the water stored in the supply region (32). In
addition, the covering member (26) further includes an air
circulation path (65) in which air containing the accumulated
active species circulates back to the air blowing mechanism (64)
through the exhaust port (34).
[0029] In the fifth aspect of the invention, the covering member
(26) includes the exhaust port (34) through which the air is
exhausted, which contains the active species supplied to the supply
region (32). The air containing the active species accumulated in
the space above the water surface of the water stored in the supply
region (32) circulates back to the air blowing mechanism (64)
through the exhaust port (34) and the air circulation path (65).
The active species circulate between the supply region (32) and the
air blowing mechanism (64), thereby using the active species
without wastage. Thus, an amount of the active species to be
generated in the electrical discharge unit (51) can be reduced, and
water purification efficiency can be improved. Further, an
operation time of the electrical discharge unit (51) and the air
blowing mechanism (64), which is required to ensure water
purification capability can be shortened, and therefore it is
advantageous in power consumption.
[0030] A sixth aspect of the invention is intended for the humidity
control apparatus of any one of the first to fourth aspects of the
invention, the covering member (26) includes an exhaust port (34)
through which air is exhausted, which contains the active species
supplied to the supply region (32), and accumulated in the space
above the water surface of the water stored in the supply region
(32). In addition, the covering member (26) further includes an
ozone decomposition catalyst (37) for decomposing an ozone
component contained in the active species, which is arranged on the
exhaust port (34).
[0031] In the sixth aspect of the invention, the ozone
decomposition catalyst (37) for decomposing the ozone component
contained in the active species is arranged on the exhaust port
(34). Thus, the ozone component of the active species accumulated
in the space above the water surface of the water stored in the
supply region (32) is decomposed by the ozone decomposition
catalyst (37), and then is released to the outside of the storage
tank (41). Such a state is preferable because ozone etc. contained
in the active species do not cause the ozone concentration in the
room, which exceeds its environmental limit even if the humidity
control apparatus is used for a long period of time in the closed
room.
[0032] A seventh aspect of the invention is intended for any one of
the first to sixth aspects of the invention, which further includes
a mixing mechanism (35) for mixing the water in the storage tank
(41) to forcibly send the water of the supply region (32) to the
humidification region (31) through the communication path (33).
[0033] In the seventh aspect of the invention, the mixing mechanism
(35) mixes the water in the storage tank (41). The mixed water is
forcibly sent from the supply region (32) to the humidification
region (31) through the communication path (33). Thus, the water in
the supply region (32), which is purified by the active species
flows into the humidification region (31) without being accumulated
in the supply region (32). Bacteria and harmful substances in the
water are removed, thereby efficiently purifying the water across
the entire storage tank (41).
[0034] An eighth aspect of the invention is intended for the
humidity control apparatus of any one of the first to seventh
aspects of the invention, in which an electrical discharge process
is intermittently performed by the electrical discharge unit
(51).
[0035] In the eighth aspect of the invention, the electrical
discharge process is intermittently performed by the electrical
discharge unit (51). According to such a configuration, the water
purification capability can be ensured with the minimum power, and
therefore it is advantageous in the power consumption.
[0036] Specifically, in, e.g., an apparatus configuration in which
the air circulation path (65) is provided to collect and
recirculate the remaining active species which are not used for a
water purification process, even if the electrical discharge
process by the electrical discharge unit (51) is stopped, the
collected active species are continuously supplied to the water to
perform the water purification process. The electrical discharge
process is intermittently performed at a timing at which a
concentration of the active species in the supply region (32)
becomes equal to or less than a predetermined concentration due to
consumption of the active species upon the water purification
process, or due to gradual reduction of the active species by,
e.g., natural destruction of the active species, and therefore it
is advantageous in the power consumption. In addition, by
shortening an electrical discharge time, contaminants are less
likely to adhere to discharge electrodes, and the discharge
electrodes are less likely to be damaged. Consequently, a life
extension of the discharge electrode can be realized.
[0037] In order to intermittently perform the electrical discharge
process by the electrical discharge unit (51), a feedback control
may be performed by measuring the active species concentration by,
e.g., a sensor in real time. However, other than the foregoing
control, a lowering speed of the active species concentration etc.
may be experimentally calculated in advance, and then a control may
be performed so that the electrical discharge process is
intermittently performed at the timing at which the active species
concentration becomes equal to or less than the predetermined
concentration. Thus, such a control is advantageous in reducing
costs because there is no need to separately provide the sensor for
measuring the concentration.
[0038] A ninth aspect of the invention is intended for the humidity
control apparatus of the fourth or fifth aspect of the invention,
in which an air blowing process is intermittently performed by the
air blowing mechanism (64).
[0039] In the ninth aspect of the invention, the air blowing
process is intermittently performed by the air blowing mechanism
(64). According to such a configuration, the water purification
capability can be ensured with the minimum power, and it is
advantageous in the power consumption.
[0040] Specifically, in, e.g., an apparatus configuration in which
the active species applied to the space above the water surface of
the water stored in the supply region (32) are gradually mixed with
the water by, e.g., the gas-liquid mixing mechanism (66), even if
the air blowing process by the air blowing mechanism (64) is
stopped, the active species are mixed with the water by the
gas-liquid mixing mechanism (66) to perform the water purification
process. That is, even if the active species are not continuously
supplied to the supply region (32), the water purification process
can be continued for a while by mixing the active species
accumulated in the supply region (32) with the water by the
gas-liquid mixing mechanism (66).
[0041] The air blowing process (and the electrical discharge
process) is intermittently performed at the timing at which the
concentration of the active species in the supply region (32)
becomes equal to or less than the predetermined concentration due
to the consumption of the active species upon the water
purification process, or due to the gradual reduction of the active
species by, e.g., the natural destruction of the active species.
Thus, the water purification capability can be ensured with the
minimum power, and it is advantageous in the power consumption and
the life extension of the air blowing mechanism (64). In addition,
the intermittent operation allows reduction in noise due to an
operation of an air blowing pump and an air blowing pump
configuring the air blowing mechanism (64).
Advantages of the Invention
[0042] According to the present invention, the inside of the
storage tank (41) is divided into the supply region (32) and the
humidification region (31) so that the supply region (32) and the
humidification region (31) are arranged along the horizontal
direction, and the space above the supply region (32) is covered
with the covering member (26). In addition, the active species are
supplied only to the supply region (32). Thus, the release of the
active species to the outside of the storage tank (41) is reduced.
Consequently, such a state is preferable because ozone etc.
contained in the active species do not cause the ozone
concentration in the room, which exceeds its environmental limit
even if the humidity control apparatus is used for a long period of
time in the closed room.
[0043] Since the active species are not released to the outside of
the storage tank (41), the catalyst is not necessarily arranged on
the upstream or downstream side of the air blowing fan in order to
decompose and remove the active species. Thus, the degradation of
the air distribution performance due to the pressure loss can be
reduced or prevented, and it is advantageous in the cost reduction
of the catalyst.
[0044] The water in the supply region (32), which is purified by
the supplied active species flows into the humidification region
(31) through the communication path (33). Thus, bacteria and
harmful substances in the water are removed, thereby efficiently
purifying the water across the entire storage tank (41).
BRIEF DESCRIPTION OF THE DRAWINGS
[0045] FIG. 1 illustrates an entire configuration of a humidity
control apparatus of an embodiment, and is a perspective view
illustrating a state in which a storage tank is drawn out from a
casing.
[0046] FIG. 2 is a side cross-sectional view illustrating an
internal configuration in the humidity control apparatus.
[0047] FIG. 3 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and the
storage tank.
[0048] FIG. 4 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a first variation.
[0049] FIG. 5 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a second variation.
[0050] FIG. 6 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a second embodiment.
[0051] FIG. 7 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a third embodiment.
DESCRIPTION OF EMBODIMENTS
[0052] Embodiments of the present invention will be described below
with reference to the drawings. The embodiments below will be set
forth merely for purposes of preferred examples in nature, and are
not intended to limit the scope, applications, and use of the
invention.
First Embodiment
[0053] FIG. 1 is a perspective view illustrating a configuration of
a humidity control apparatus of a first embodiment of the present
invention, and FIG. 2 is a side cross-sectional view illustrating
an internal configuration in the humidity control apparatus. As
illustrated in FIGS. 1 and 2, a humidity control apparatus (10)
allows an operation in which room air is purified while humidifying
the room air.
[0054] The humidity control apparatus (10) includes a casing (11)
made of resin. The casing (11) is formed in substantially
rectangular parallelepiped shape, and a front surface (a left side
end surface as viewed in FIG. 2) is defined by a front panel
(11a).
[0055] Inlets (12) through which air is injected into the casing
(11) are formed on both right and left sides of a front section of
the casing (11) (see FIG. 1). In addition, an outlet (13) through
which air inside the casing (11) is discharged to an outside of the
casing (11) is formed in a rear-side upper section of the casing
(11). An air path (14) in which air flows from the inlets (12) to
the outlet (13) is formed inside the casing (11).
[0056] As illustrated in FIG. 2, in the humidity control apparatus
(10), an air purification unit (20), a humidification unit (40),
and a centrifugal fan (15) are provided in the air path (14) in
this order from an air-flow upstream side to an air-flow downstream
side; and an active species supply unit (50) is also arranged in
the air path (14).
[0057] Configuration of Air Purification Unit
[0058] As illustrated in FIG. 2, the air purification unit (20) is
for purifying air, and includes a prefilter (21), an ionization
section (22), and a pleated filter (23).
[0059] The prefilter (21) serves as a duct collection filter for
trapping relatively-large dust contained in air.
[0060] The ionization section (22) serves as a dust charging unit
configured to charge dust in air. For example, a linear electrode
and a plate-like electrode facing the liner electrode are provided
in the ionization section (22). In the ionization section (22),
voltage is applied from a power source (not shown in the figure) to
the electrodes, thereby generating corona discharge. Such corona
discharge charges dust in air to a predetermined voltage (positive
or negative charge).
[0061] The pleated filter (23) is a corrugated plate-like
electrostatic filter. That is, the pleated filter (23) electrically
attracts and traps the dust charged in the ionization section (22).
Deodorizing material such as a photocatalyst may be deposited on
the pleated filter (23).
[0062] Configuration of Humidification Unit
[0063] As illustrated in FIG. 2, the humidification unit (40)
includes a storage tank (41) for storing water; a water turbine
(42) for drawing up the water in the storage tank (41); a
humidification rotor (43) serving as a humidification mechanism for
imparting the water drawn up by the water turbine (42) to air; and
a drive motor (44) for rotatably driving the humidification rotor
(43). In addition, the humidification unit (40) includes a heater
(48) for heating the humidification rotor (43).
[0064] The storage tank (41) is installed in a lower space of the
casing (11), and can be drawn out through a draw-out opening (11b)
of the casing (11) (see FIG. 1). This allows a user to refill the
storage tank (41) with humidification water (e.g., tap water) as
necessary.
[0065] As illustrated in FIG. 3, the storage tank (41) is a
horizontally-elongated container with an upper opening. A dividing
member (25) divides an inside of the storage tank (41) into a
humidification region (31) where the humidification unit (40) is
arranged to impart the water to air; and a supply region (32) to
which active species are supplied from the active species supply
unit (50) to purify the water. That is, the dividing member (25)
extends in a direction perpendicular to a water surface, and
divides the inside of the storage tank (41) into the humidification
region (31) and the supply region (32) which are arranged along a
horizontal direction (water surface direction). A covering member
(26) for covering a space above the supply region (32) is provided
above the supply region (32). The covering member (26) is provided
so as to cross between an upper end of a side wall of the storage
tank (41) and an upper end of the dividing member (25). The supply
region (32) is surrounded by the dividing member (25) and the
covering member (26).
[0066] An outlet (41a) communicating with the supply region (32)
surrounded by the dividing member (25) and the covering member (26)
is formed in an upper section of the side wall of the storage tank
(41). A delivery pipe (63) of the active species supply unit (50)
which will be described later is connected to an upstream side of
the outlet (41a). A discharge nozzle (45) downwardly extending
along the side wall of the storage tank (41) is connected to a
downstream side of the outlet (41a). That is, the delivery pipe
(63) and the discharge nozzle (45) are connected to the outlet
(41a) with the side wall of the storage tank (41) being interposed
therebetween. The active species are discharged from the outlet
(41a) into the water in the supply region (32) of the storage tank
(41) through the discharge nozzle (45).
[0067] A lower end of the dividing member (25) is positioned higher
than a bottom surface of the storage tank (41), and a clearance is
formed between the dividing member (25) and the bottom surface of
the storage tank (41). Such a clearance serves as a communication
path (33) through which the water purified in the supply region
(32) flows into the humidification region (31). That is, the
dividing member (25) defines the communication path (33) in the
water.
[0068] An exhaust port (34) is formed in the covering member (26).
The exhaust port (34) is for exhausting air containing the active
species which are supplied to the supply region (32), and which are
accumulated in a space above the water surface of the water stored
in the supply region (32). The covering member (26) includes a
dehumidifying agent (36) and an ozone decomposition catalyst (37)
which are stacked above the exhaust port (34) in this order. The
dehumidifying agent (36) is for removing moisture in air containing
the active species, and the ozone decomposition catalyst (37) is
for decomposing and removing an ozone component contained in the
active species. The dehumidifying agent (36) and the ozone
decomposition catalyst (37) are held by a holding member (38) which
is engaged at a circumferential edge of an upper surface of the
ozone decomposition catalyst (37), and which surrounds side walls
of the dehumidifying agent (36) and the ozone decomposition
catalyst (37). Material having excellent dehumidification
performance, such as silica gel, can be used as the dehumidifying
agent (36).
[0069] An opening above the humidification region (31) of the
storage tank (41) is closed with a lid (46) having an outer shape
defined along upper edges of the storage tank (41) and the dividing
member (25), and therefore a release of the evaporated water in the
humidification region (31) to air are reduced.
[0070] As illustrated in FIG. 2, the water turbine (42) is formed
in substantially discoid shape, and a rotating shaft (42a) is
provide so as to protrude from a shaft center section of the water
turbine (42). The rotating shaft (42a) is rotatably supported by a
bearing member (not shown in the figure) vertically arranged on the
bottom surface of the storage tank (41). The water turbine (42) is
provided so that a part (a predetermined section including a lower
end section) of the water turbine (42) is soaked in the water in
the humidification region (31) of the storage tank (41).
[0071] A plurality of recessed sections (42b) are formed around the
shaft in a rear-side surface (side surface facing the
humidification rotor (43)) of the water turbine (42). In an outer
end section in a radial direction of the water turbine (42), the
plurality of recessed sections (42b) are arranged at equal distance
in a circumferential direction. During rotating the water turbine
(42), each of the recessed sections (42b) is alternately displaced
between a position in which the recessed section (42b) is soaked in
the water in the storage tank (41), and a position in which the
recessed section (42b) is taken out from the water.
[0072] In the rear-side surface of the water turbine (42), a
toothed wheel (42c) is integrally formed in a section closer to the
shaft center of the water turbine (42). The toothed wheel (42c)
engages with a driven toothed wheel (43a) of the humidification
rotor (43).
[0073] The humidification rotor (43) includes a discoid adsorbing
member (43b), and the circular driven toothed wheel (43a) formed
along an outer circumferential surface of the adsorbing member
(43b). The adsorbing member (43b) is made of non-woven fabric
having high hygroscopic properties in order to adsorb moisture.
[0074] The humidification rotor (43) is rotatably held with the
rotating shaft in a position higher than a water level of a full
capacity of the storage tank (41). In addition, the humidification
rotor (43) is arranged so that the predetermined section including
the lower end of the humidification rotor (43) substantially
contacts the water turbine (42). That is, the humidification rotor
(43) has a section overlapping with the recessed sections (42b) of
the water turbine (42) as viewed in an axial direction of the
humidification rotor (43). This allows the adsorbing member (43b)
to contact and adsorb the water drawn up by the recessed sections
(42b) of the water turbine (42) when such water flows out from the
recessed sections (42b).
[0075] The drive motor (44) is connected to the driven toothed
wheel (43a) of the humidification rotor (43) through a power
transmission unit (not shown in the figure) such as a toothed
wheel. This transmits rotational force of the drive motor (44) to
the driven toothed wheel (43a) of the humidification rotor (43)
through the power transmission unit, thereby rotating the driven
toothed wheel (43a). When further rotating the driven toothed wheel
(43a), the toothed wheel (42c) engaged with the driven toothed
wheel (43a) rotates, resulting in rotation of the water turbine
(42).
[0076] The heater (48) is arranged adjacent to an upper end section
of an upstream-side surface of the humidification rotor (43). The
heater (48) can heat air flowing into the humidification rotor
(43).
[0077] Configuration of Active Species Supply Unit
[0078] The active species supply unit (50) is for supplying the
active species such as radicals, excited molecules, and ozone to
the water in the supply region (32) of the storage tank (41), which
will be supplied to the humidification rotor (43), to purify such
water. As illustrated in FIG. 3, the active species supply unit
(50) includes an electrical discharge unit (51) serving as an
active species generation unit; a delivery path (55) through which
the active species generated in the electrical discharge unit (51)
are guided into the supply region (32) of the storage tank (41);
and an air blowing pump (64) for sending the active species into
the supply region (32) of the storage tank (41) through the
delivery path (55) by blowing air. The air blowing pump (64) serves
as an air blowing mechanism of the present invention.
[0079] The electrical discharge unit (51) is arranged inside an
active species generation chamber (62). An injection pipe (61)
through which air is injected into the active species generation
chamber (62), and the delivery pipe (63) defining the delivery path
(55) are connected to the active species generation chamber (62).
An inflow end of the injection pipe (61) opens to the air path
(14), and the air blowing pump (64) is connected to the middle of
the injection pipe (61). A part of air flowing in the air path (14)
is branched and injected into the injection pipe (61).
[0080] The electrical discharge unit (51) generates the active
species by streamer discharge. Specifically, the electrical
discharge unit (51) includes a rod-like electrode (52) and a flat
plate-like electrode (53). The rod-like electrode (52) is supported
by a base plate (52a) provided inside the active species generation
chamber (62), through a support plate (52b). The rod-like electrode
(52) is formed in elongated linear shape, and has a substantially
circular cross section. The flat plate-like electrode (53) is
formed in flat plate-like shape. The rod-like electrode (52) and
the flat plate-like electrode (53) are arranged so as to be
parallel to each other. Tip ends of the rod-like electrode (52)
face the flat plate-like electrode (53).
[0081] The rod-like electrode (52) is connected to a positive
electrode side of a power source (18), and the flat plate-like
electrode (53) is connected to a negative electrode side (or
ground) of the power source (18). When applying a potential
difference from the power source (18) to the electrodes (52, 53),
streamer discharge is generated from the tip ends of the rod-like
electrode (52) toward the flat plate-like electrode (53).
Consequently, molecules of, e.g., oxygen, nitrogen, and water in
air are ionized or excited, thereby generating a large amount of
the active species such as radicals and excited molecules. High DC
voltage is preferably applied from the power source (18) to the
electrical discharge unit (51), and discharge current is preferably
maintained constant, i.e., a constant current control is preferably
performed.
[0082] According to such a configuration, in the active species
supply unit (50), the active species are generated in the
electrical discharge unit (51), and such active species are sent
out through the delivery pipe (63). The active species are
discharged from the outlet (41a) of the storage tank (41) into the
water in the supply region (32) of the storage tank (41) through
the discharge nozzle (45) as air bubbles, and then the water in the
supply region (32) is purified.
[0083] Meanwhile, the active species which are not dissolved in the
water in the supply region (32) rise to the water surface due to
buoyant force, and are accumulated in a space above the water
surface. The water in the supply region (32), which is purified by
the active species flows into the humidification region (31)
through the communication path (33), and then circulates between
the supply region (32) and the humidification region (31).
[0084] Operation
[0085] An operation of the humidity control apparatus (10) of the
first embodiment will be described. In the humidity control
apparatus (10), a humidification operation is performed, in which
room air is simultaneously purified and humidified. In the
humidification operation, the centrifugal fan (15) is driven while
rotatably driving the humidification rotor (43), and power is
applied to the heater (48). In addition, voltage is applied to the
electrodes of the ionization section (22).
[0086] As illustrated in FIG. 2, when driving the centrifugal fan
(15), room air is injected into the air path (14) through the inlet
(12). The air injected into the air path (14) passes through the
prefilter (21), and dust is trapped. Subsequently, the air passes
through the ionization section (22). In the ionization section
(22), corona discharge is generated between the electrodes, thereby
charging dust in the air. The air flowing out from the ionization
section (22) passes through the pleated filter (23). In the pleated
filter (23), the charged dust is electrically attracted and
trapped. The air flowing out from the pleated filter (23) is heated
by the heater (48), and then passes through the humidification
rotor (43).
[0087] In the humidification unit (40), the water turbine (42)
rotates to supply the water in the storage tank (41) to the
adsorbing member (43b) of the humidification rotor (43) as
necessary. Specifically, the water turbine (42) rotates to soak the
recessed sections (42b) in the water in the storage tank (41), and
therefore the water enters and is held in the recessed section
(42b). When further rotating the water turbine (42), the recessed
section (42b) in which the water is held is taken out from the
water to be upwardly displaced. As the recessed section (42b)
upwardly moves, the recessed section (42b) gradually moves toward
the humidification rotor (43). In addition, as the recessed section
(42b) upwardly moves, the water held in the recessed section (42b)
gradually flows out from the recessed section (42b) by its own
weight. When the recessed section (42b) reaches an uppermost end
position, a substantially full amount of the water in the recessed
section (42b) flows out.
[0088] The water flowing out from the recessed section (42b)
contacts a section of the humidification rotor (43) adjacent to the
recessed section (42b), and is adsorbed to the adsorbing member
(43b). In such a process, the water is continuously supplied to the
humidification rotor (43) of the humidification unit (40).
[0089] When air flowing in the air path (14) flows through the
adsorbing member (43b), moisture adsorbed to the adsorbing member
(43b) is released to the air. Consequently, the air is humidified.
The air purified and humidified as described above is supplied to a
room through the outlet (13). Note that, in the humidification
operation, a voltage supply from the power source (18) to the
ionization section (22) is stopped, thereby allowing an operation
in which air is not actively purified.
[0090] Water Purification Process
[0091] After water is stored in the storage tank (41) for a long
period of time, bacteria grow in the water, resulting in
contamination of the water in the storage tank (41). If substances
such as ammonia (harmful substances or odorous components) are
contained in, e.g., air flowing in the air path (14), such
substances may be dissolved in and contaminates the water in the
storage tank (41). Thus, if such contaminated water is supplied to
the room as humidification water, cleanliness in the room is
degraded.
[0092] In the humidity control apparatus (10) of the first
embodiment, the active species supply unit (50) is used to supply
the active species to the water in the air path (14), thereby
allowing a water purification process for purifying the water.
[0093] Specifically, the water purification process is performed
simultaneously with, e.g., the humidification operation. In the
water purification process, the air blowing pump (64) is operated,
and voltage is applied from the power source (18) to the electrical
discharge unit (51). When operating the air blowing pump (64), air
is injected into the active species generation chamber (62) through
the injection pipe (61) (see FIG. 3). In the active species
generation chamber (62), the electrical discharge unit (51) to
which voltage is applied from the power source (18) generates
streamer discharge. Consequently, the active species are generated
in the active species generation chamber (62). The active species
are sent by air from the air blowing pump (64), and then flows
toward the storage tank (41) in the delivery path (55) of the
delivery pipe (63). The active species are discharged into the
water in the supply region (32) of the storage tank (41) through
the discharge nozzle (45).
[0094] Consequently, harmful substances, bacteria, etc. contained
in the water in the supply region (32) of the storage tank (41) are
decomposed and removed by the active species, thereby purifying the
water in the supply region (32) of the storage tank (41). The water
purified by the active species flows from the supply region (32) to
the humidification region (31) through the communication path (33),
thereby purifying the water in the humidification region (31). This
allows a removal of bacteria and harmful substances in the water,
and therefore the water can be efficiently purified in the entire
storage tank (41). Thus, in the humidification operation, the clean
water in the humidification region (31) of the storage tank (41) is
imparted to air by the humidification rotor (43), thereby not
degrading the cleanliness in the room. In the supply region (32),
the active species rising to the water surface without being
dissolved in the water flow out through the exhaust port (34)
together with air. At this point, moisture in air containing the
active species is removed by the dehumidifying agent (36), and an
ozone component in the active species is decomposed and removed by
the ozone decomposition catalyst (37). Thus, a release of the
active species to an outside of the storage tank (41) is
reduced.
[0095] As described above, according to the humidity control
apparatus (10) of the first embodiment, the dividing member (25)
divides the inside of the storage tank (41) into the supply region
(32) and the humidification region (31), and the space above the
supply region (32) is covered with the covering member (26). In
addition, the active species are supplied only to the supply region
(32). Thus, the release of the active species to the outside of the
storage tank (41) is reduced by the dividing member (25) and the
covering member (26). Such a state is preferable because the ozone
component contained in the active species does not cause an ozone
concentration in the room, which exceeds its environmental limit
even if the humidity control apparatus (10) is used for a long
period of time in the closed room.
[0096] Since the active species are not released to the outside of
the storage tank (41), the ozone decomposition catalyst (37) is not
necessarily arranged on an upstream or downstream side of the
centrifugal fan (15) in order to decompose and remove the ozone
component contained in the active species. Thus, degradation of air
distribution performance due to a pressure loss can be reduced, and
it is advantageous in cost reduction of the catalyst.
[0097] The water in the supply region (32), to which the active
species are supplied for purification flows into the humidification
region (31) through the communication path (33). Thus, bacteria and
harmful substances in the water are removed to efficiently purify
the water across the entire storage tank (41).
[0098] <First Variation>
[0099] FIG. 4 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a first variation of the present invention. As
illustrated in FIG. 4, in the present variation, a part of air
sucked by a centrifugal fan (15) is sent to an active species
generation chamber (62). Specifically, one end of a branched pipe
(15a) for branching air flowing in the centrifugal fan (15) is
connected to the middle of a flow path of the centrifugal fan (15),
and the other end of the branched pipe (15a) is connected to the
active species generation chamber (62) of an active species supply
unit (50).
[0100] When the centrifugal fan (15) is operated to start an air
blowing process, air in which an ozone component is decomposed by
an ozone decomposition catalyst (37), and air leaking from a
clearance formed by a lid (46) closing a space above a
humidification region (31) of a storage tank (41) are sucked
through an inlet in a center section of the centrifugal fan (15).
The air sucked into the centrifugal fan (15) is discharged through
an outlet. However, a part of the air is branched in the middle of
the flow path of the centrifugal fan (15), and is sent to the
active species supply unit (50) through the branched pipe
(15a).
[0101] Such a configuration ensures that active species generated
in an electrical discharge unit (51) are sent to a supply region
(32) of the storage tank (41). Air is branched from the centrifugal
fan (15) toward the electrical discharge unit (51), and therefore
it is not necessary to separately provide a purpose-built air
blowing pump (64) etc. as in the first embodiment. Consequently, it
is advantageous in cost reduction.
[0102] <Second Variation>
[0103] FIG. 5 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a second variation of the present invention. As
illustrated in FIG. 5, a mixing turbine (35) for mixing water in a
supply region (32) as a mixing mechanism is arranged in a storage
tank (41). The mixing turbine (35) is arranged near a communication
path (33). The mixing turbine (35) rotates about a center shaft
(35a) extending in a depth direction as viewed in FIG. 5, thereby
mixing the water in the supply region (32). The water mixed by the
mixing turbine (35) is forcibly sent from the supply region (32) to
a humidification region (31) through the communication path
(33).
[0104] A plurality of blades (35b) are provided apart from each
other in a circumferential direction on an outer circumferential
surface of the mixing turbine (35). Active species discharged into
the water through a discharge nozzle (45) are sprayed on the blades
(35b), and then air bubbles are used as power to rotate the mixing
turbine (35) about the center shaft (35a) in a clockwise direction.
Thus, a flow of the water is generated.
[0105] According to such a configuration, the water in the supply
region (32), which is purified by the active species is forcibly
sent to the humidification region (31) without being accumulated in
the supply region (32). Bacteria and harmful substances in the
water are removed, thereby efficiently purify the water across the
entire storage tank (41).
Second Embodiment
[0106] FIG. 6 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a second embodiment of the present invention. The
second embodiment is different from the first embodiment in that an
air circulation path (65) is provided, through which active species
supplied to a supply region (32) of a storage tank (41) circulate
back to an air blowing pump (64). Thus, the same reference numerals
as those described in the first embodiment are used to represent
equivalent elements, and only differences will be described.
[0107] As illustrated in FIG. 6, in the present embodiment, a
dehumidifying agent (36), and an ozone decomposition catalyst (37),
and a holding member (38) are omitted in a covering member (26). In
addition, in the present embodiment, the air circulation path (65)
is connected between an exhaust port (34) of the covering member
(26) and an active species generation chamber (62). An air blowing
pump (64) is connected to the middle of a flow path of the air
circulation path (65). The air blowing pump (64) is operated to
circulate the active species accumulated in a space above a water
surface in the supply region (32) back to the active species
generation chamber (62) through the exhaust port (34) and the air
circulation path (65).
[0108] According to such a configuration, the active species
circulate between the supply region (32) and the active species
generation chamber (62), thereby using the active species without
wastage. In addition, an amount of the active species to be
generated in an electrical discharge unit (51) can be reduced, and
water purification efficiency can be improved. Further, an
operation time of the electrical discharge unit (51) and the air
blowing pump (64), which is required to ensure water purification
capability can be shortened, and therefore it is advantageous in
power consumption.
[0109] In the present invention, an electrical discharge process
may be intermittently performed by the electrical discharge unit
(51) to realize the power consumption. That is, even if the
electrical discharge process by the electrical discharge unit (51)
is stopped, the active species in the supply region (32) are
collected by the air blowing pump (64) through the air circulation
path (65) to be recirculated, and then are continuously supplied to
the water for a water purification process.
[0110] At a timing at which a concentration of the active species
in the supply region (32) becomes equal to or less than a
predetermined concentration due to consumption of the active
species upon the water purification process, or due to gradual
reduction of the active species by, e.g., natural destruction of
the active species, the electrical discharge process is
intermittently performed to ensure the water purification
capability with the minimum power, and therefore it is advantageous
in power consumption. By shortening an electrical discharge time,
contaminants are less likely to adhere to discharge electrodes, and
the discharge electrodes are less likely to be damaged.
Consequently, a life extension of the discharge electrode can be
realized.
[0111] In order to intermittently perform the electrical discharge
process by the electrical discharge unit (51), a feedback control
may be performed by measuring an active species concentration by,
e.g., a sensor in real time. However, other than the foregoing
control, a lowering speed of the active species concentration etc.
may be experimentally calculated in advance, and then a control may
be performed so that the electrical discharge process is
intermittently performed at the timing at which the active species
concentration becomes equal to or less than the predetermined
concentration. Thus, it is advantageous in cost reduction without
separately providing the sensor for measuring the
concentration.
Third Embodiment
[0112] FIG. 7 is a side cross-sectional view illustrating an
internal configuration in an active species supply unit and a
storage tank of a third embodiment of the present invention. The
third embodiment is different from the first embodiment in that a
gas-liquid mixing roller (66) for mixing active species with water
in a supply region (32) is provided. Thus, the same reference
numerals as those described in the first embodiment are used to
represent equivalent elements, and only differences will be
described.
[0113] As illustrated in FIG. 7, in a storage tank (41) of the
present embodiment, a discharge nozzle (45) is omitted, and an
outlet (41a) opens to a space above a water surface in the supply
region (32). As in the first embodiment, a delivery pipe (63) of an
active species supply unit (50) is connected to the outlet (41a).
That is, in the storage tank (41) of the present embodiment, the
active species are discharged into the space above the water
surface in the supply region (32) through the outlet (41a).
[0114] According to such a configuration, as compared to a case
where the active species are directly supplied into the water in
the supply region (32), an air blowing pump (64) having a lower
discharge pressure can be used to sent the active species to the
supply region (32). Consequently, it is advantageous in cost
reduction and life extension for the entire apparatus.
[0115] The gas-liquid mixing roller (66) is arranged in the supply
region (32) of the storage tank (41). The gas-liquid mixing roller
(66) is for mixing the stored water with the active species
accumulated in the space above the water surface in the supply
region (32). The gas-liquid mixing roller (66) is arranged so that
an upper section of the gas-liquid mixing roller (66) is exposed
above the water surface, and a lower section of the gas-liquid
mixing roller (66) is soaked in the water. The gas-liquid mixing
roller (66) serves as a gas-liquid mixing mechanism of the present
invention.
[0116] The gas-liquid mixing roller (66) is made of porous
material. The gas-liquid mixing roller (66) rotates about a center
shaft (66a) extending in a depth direction as viewed in FIG. 7 in a
clockwise direction, and then an outer circumferential surface of
the lower section soaked in the water is exposed above the water
surface. At this point, a water film is formed on the outer
circumferential surface exposed above the water surface. The active
species accumulated in the space above the water surface react with
the water film in the upper section of the gas-liquid mixing roller
(66) in order to purify the water. The purified water in the upper
section of the gas-liquid mixing roller (66) is mixed with the
water in the supply region (32) by the rotation of the gas-liquid
mixing roller (66), thereby purifying the water in the supply
region (32).
[0117] According to such a configuration, the gas-liquid mixing
roller (66) mixes the active species supplied to the supply region
(32) with the water, thereby efficiently removing bacteria and
harmful substances in the water. Consequently, water purification
can be facilitated.
[0118] In the present invention, an electrical discharge process by
an electrical discharge unit (51), and an air blowing process by
the air blowing pump (64) may be intermittently performed to
realize power consumption. That is, even if the electrical
discharge process by the electrical discharge unit (51) or the air
blowing process by the air blowing pump (64) is stopped, the active
species are mixed with the water by the gas-liquid mixing roller
(66) to purify the water. In such a manner, even if the active
species are not continuously supplied to the supply region (32),
the active species accumulated in the space above the supply region
(32) (space above the water surface) are mixed with the water by
the gas-liquid mixing roller (66), and therefore the water
purification process can be continued for a while.
[0119] At a timing at which a concentration of the active species
in the supply region (32) becomes equal to or less than a
predetermined concentration due to consumption of the active
species upon the water purification process, or due to gradual
reduction of the active species by, e.g., natural destruction of
the active species, the electrical discharge process and the air
blowing process are intermittently performed to ensure the water
purification capability with the minimum power, and therefore it is
advantageous in power consumption and life extension of the
electrical discharge unit (51) and the air blowing pump (64). The
intermittent operation allows reduction in noise due to an
operation of the air blowing pump (64).
Other Embodiments
[0120] In the foregoing embodiments and variations, the active
species generation unit is the electrical discharge unit (51) for
generating the active species by the streamer discharge. However,
the active species generation unit of the present invention is not
limited to the unit of this type, and an ultraviolet lamp for
generating active species by ultraviolet may be used. In addition,
the electrical discharge unit (51) is not limited to the unit
generating the streamer discharge.
[0121] The humidity control apparatus (10) includes the air
purification unit (20) and the humidification unit (40); and allows
the air purification and the humidification operation. However, the
humidity control apparatus (10) may further include a
dehumidification unit, and allow a dehumidification operation. In
such a case, water collected in the storage tank (41) in the
dehumidification operation is purified in order to reuse the water
as humidification water without a water exchange.
INDUSTRIAL APPLICABILITY
[0122] As described above, the present invention provides
highly-practical advantages that the release of the active species
to air can be reduced, and the water in the storage tank can be
efficiently purified. Thus, the present invention is extremely
useful, and has a high industrial applicability.
DESCRIPTION OF REFERENCE CHARACTERS
[0123] 10 Humidity Control Apparatus [0124] 25 Dividing Member
[0125] 26 Covering Member [0126] 31 Humidification Region [0127] 32
Supply Region [0128] 33 Communication Path [0129] 34 Exhaust Port
[0130] 35 Mixing Turbine (Mixing Mechanism) [0131] 37 Ozone
Decomposition Catalyst [0132] 41 Storage Tank [0133] 43
Humidification Rotor (Humidification Mechanism) [0134] 51
Electrical Discharge Unit [0135] 64 Air Blowing Pump (Air Blowing
Mechanism) [0136] 65 Air Circulation Path [0137] 66 Gas-Liquid
Mixing Roller (Gas-Liquid Mixing Mechanism)
* * * * *