U.S. patent application number 11/785068 was filed with the patent office on 2008-01-31 for co-generation.
Invention is credited to Se Dong Chang, Eun Jun Cho, Sim Bok Ha, Cheol Min Kim.
Application Number | 20080022707 11/785068 |
Document ID | / |
Family ID | 38694805 |
Filed Date | 2008-01-31 |
United States Patent
Application |
20080022707 |
Kind Code |
A1 |
Cho; Eun Jun ; et
al. |
January 31, 2008 |
Co-generation
Abstract
Disclosed related to a co-generation according to the present
invention has some advantages in that the heat of the refrigerant
recovered at the supply heat exchanger is used for the water
boiling as well as the heat recovered at the drive source is used
for water boiling when the air conditioner is under the air-cooling
mode and has a water boiling request by comprised as an electric
generator; a drive source operating the electric generator; a waste
heat recovery heat exchanger recovering the exhaust gas heat of the
drive source; a water boil heat exchanger installed for boiling
water; an air conditioner air-conditioning indoor air; a radiant
heat exchanger radiating heat to outside; a supply heat exchanger
installed on the refrigerant path of the air conditioner; and a
heat transfer path connecting the waste heat recovery heat
exchanger, water boil heat exchanger, and the radiant heat
exchanger, and the supply heat exchanger.
Inventors: |
Cho; Eun Jun; (Buchun-si,
KR) ; Ha; Sim Bok; (Kwangmyung-si, KR) ; Kim;
Cheol Min; (Changwon-si, KR) ; Chang; Se Dong;
(Kwangmyung-si, KR) |
Correspondence
Address: |
KED & ASSOCIATES, LLP
P.O. Box 221200
Chantilly
VA
20153-1200
US
|
Family ID: |
38694805 |
Appl. No.: |
11/785068 |
Filed: |
April 13, 2007 |
Current U.S.
Class: |
62/238.1 ;
60/616; 62/115; 62/196.2 |
Current CPC
Class: |
Y02A 30/274 20180101;
F25B 27/02 20130101; F25B 13/00 20130101; Y02E 20/14 20130101; Y02P
80/15 20151101; F25B 2400/24 20130101 |
Class at
Publication: |
62/238.1 ;
60/616; 62/115; 62/196.2 |
International
Class: |
F25B 27/02 20060101
F25B027/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 25, 2006 |
KR |
10-2006-0069782 |
Claims
1. A co-generation comprising: an electric generator; a drive
source operating the electric generator; a waste heat recovery heat
exchanger recovering the exhaust gas heat of the drive source; a
water boil heat exchanger installed for boiling water; an air
conditioner air-conditioning indoor air; a radiant heat exchanger
radiating heat to outside; a supply heat exchanger installed on the
refrigerant path of the air conditioner; and a heat transfer path
connecting the waste heat recovery heat exchanger, water boil heat
exchanger, and the radiant heat exchanger, and the supply heat
exchanger.
2. The co-generation according to claim 1, wherein a heat medium
circulation pump for circulating the heat medium through the waste
heat recovery heat exchanger, the water boil heat exchanger, the
radiant heat exchanger, and the supply heat exchanger.
3. The co-generation according to claim 1, wherein the
co-generation further comprises a water boil/radiant heat exchanger
bypassing apparatus bypassing the heat of the waste heat recovery
heat exchanger through the water boil heat exchanger and radiant
heat exchanger; a radiant heat exchanger bypassing apparatus
bypassing the heat of the waste heat recovery heat exchanger
through the radiant heat exchanger; and a supply heat exchanger
bypassing apparatus bypassing the heat of the waste heat recovery
heat exchanger through the supply heat exchanger.
4. The co-generation according to claim 3, wherein the water
boil/radiant heat exchanger bypassing apparatus comprises a water
boil/radiant heat exchanger bypassing path formed at the heat
transfer path; and a water boil/radiant heat exchanger bypassing
valve installed at the diverging point of the water boil/radiant
heat exchanger bypassing path and the heat transfer path.
5. The co-generation according to claim 3, wherein the radiant heat
exchanger bypassing apparatus comprises a radiant heat exchanger
bypassing path formed at the heat transfer path; and a radiant heat
exchanger bypassing valve installed at the diverging point of the
radiant heat exchanger bypassing path and the heat transfer
path.
6. The co-generation according to claim 3, wherein the supply heat
exchanger bypassing apparatus 200 comprises a supply heat exchanger
bypassing path 202 formed at the heat transfer path 170; and a
supply heat bypassing valve 204 installed at the diverging point of
the supply heat exchanger bypassing path 202 and the heat transfer
path 170.
7. The co-generation according to claim 1, wherein the drive
source, the electric generator and waste heat recovery heat
exchanger are installed at the engine unit, and the water boil heat
exchanger and the radiant heat exchanger are installed at the heat
radiant unit.
8. The co-generation according to claim 1, wherein the air
conditioner is a heat pump type air conditioner including a
compressor, a 4-way valve, an outdoor heat exchanger, an expansion
apparatus and, and an indoor heat exchanger.
9. The co-generation according to claim 8, wherein the heat pump
type air conditioner further includes an outdoor heat exchanger
bypassing apparatus and formed for bypassing the refrigerant
through the outdoor heat exchanger.
10. The co-generation according to claim 9, wherein the outdoor
heat exchanger bypassing apparatus includes an outdoor heat
exchanger bypassing path connected with the indoor heat exchanger
inlet side refrigerant path and the outlet side refrigerant path;
an outdoor heat exchanger outlet valve installed at the outdoor
exchanger outlet side refrigerant path; an outdoor heat exchanger
bypassing valve opening and shutting the outdoor heat exchanger
bypassing path; an outdoor heat exchanger connection path
connecting the outdoor heat exchanger bypassing path and the inlet
side refrigerant path of the outdoor heat exchanger; a connection
path opening and shutting valve installed at the outdoor heat
exchanger connection path; and a check valve installed at the inlet
side refrigerant path of the outdoor heat exchanger for streaming
the refrigerant flown from the indoor machine into the outdoor heat
exchanger bypassing path during the air warming operation of the
heat pump type air conditioner.
11. The co-generation according to claim 9, wherein the outdoor
heat exchanger bypassing apparatus includes an outdoor heat
exchanger bypassing path connected with the inlet side refrigerant
path of the outdoor heat exchanger and the outlet side refrigerant
path; an outdoor heat exchanger outlet valve installed at the
outlet side refrigerant path of the outdoor heat exchanger; an
outdoor heat exchanger bypassing valve opening and shutting the
outdoor heat exchanger bypassing path; and an outdoor heat
exchanger inlet valve installed at the inlet side refrigerant path
of the outdoor heat exchanger.
12. The co-generation according to claim 8, wherein the supply heat
exchanger is installed on the refrigerant path between the 4-way
valve and the outdoor heat exchanger.
13. The co-generation according to claim 8, wherein the compressor,
4-way valve, and the outdoor heat exchanger are installed at the
outdoor machine, the indoor heat exchanger is installed at the
indoor machine, and the expansion apparatus is installed at least
one of the outdoor machine or the indoor machine.
14. The co-generation according to claim 13, wherein the supply
heat exchanger is installed at the inside of the outdoor
machine.
15. The co-generation according to claim 1, wherein the
co-generation further comprises a heat storage tank connected with
the water boil heat exchanger and the water circulation path, and a
water supply tank connected with the water circulation path and the
water supply path.
16. The co-generation according to claim 15, wherein a heat storage
circulation path pumping the water in the heat storage tank to be
circulated to the heat storage tank after passing through the water
boil heat exchanger and a heat storage valve opening and shutting
the water circulation path are installed at the water circulation
path.
17. The co-generation according to claim 16, wherein the water
supply pump pumping the water in the water supply tank to be
supplied to the water circulation path and a water supply valve
opening and shutting the water supply path are installed at the
water supply path.
18. A co-generation comprising: a drive source operating the
electric generator; a waste heat recovery heat exchanger recovering
the exhaust gas heat of the drive source; a water boil heat
exchanger installed for boiling water; an air conditioner
air-conditioning indoor air; a supply heat exchanger installed on
the refrigerant path of the air conditioner; and a heat transfer
path connecting the waste heat recovery heat exchanger, water boil
heat exchanger, and the supply heat exchanger.
19. The co-generation according to claim 18, wherein the
co-generation further comprises a water boil heat exchanger
bypassing apparatus bypassing the heat of the waste heat recovery
heat exchanger through the water boil heat exchanger; and a supply
heat exchanger bypassing apparatus bypassing the heat of the waste
heat recovery heat exchanger through the supply heat exchanger.
20. A co-generation comprising: an electric generator; a drive
source operating the electric generator; a waste heat recovery heat
exchanger recovering the exhaust gas heat of the drive source; a
water boil heat exchanger installed for boiling water; an air
conditioner air-conditioning indoor air; a radiant heat exchanger
radiating heat to outside; a supply heat exchanger installed on the
refrigerant path of the air conditioner; a heat transfer path
connecting the waste heat recovery heat exchanger, water boil heat
exchanger, and the radiant heat exchanger, and the supply heat
exchanger; a water boil/radiant heat exchanger bypassing path
formed at the heat transfer path; a water boil/radiant heat
exchanger bypassing valve installed at the diverging point of the
water boil/radiant heat exchanger bypassing path and the heat
transfer path; a radiant heat exchanger bypassing path formed at
the heat transfer path; a radiant heat exchanger bypassing valve
installed at the diverging point of the radiant heat exchanger
bypassing path and the heat transfer path; a supply heat exchanger
bypassing path 202 formed at the heat transfer path 170; a supply
heat bypassing valve 204 installed at the diverging point of the
supply heat exchanger bypassing path 202 and the heat transfer path
170; and a control unit controlling the water boil/radiant heat
exchanger bypassing valve, the radiant heat exchanger bypassing
valve, and the supply heat exchanger bypassing valve in accordance
with the air-cooling/air warming and the water boiling of the air
conditioner.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a co-generation and, more
particularly, to a co-generation transferring waste heat of a waste
heat recovery heat exchanger to the water boil heat exchanger and
the supply heat exchanger or transferring the heat of the waste
heat recovery heat exchanger and the supply heat exchanger to a
water boil heat exchanger as the waste heat recovery heat exchanger
recovering the waste heat of an engine, a water boil heat exchanger
heating water, and the supply heat exchanger condensing/evaporating
the refrigerant of the water boil heat exchanger are connected.
[0003] 2. Description of the Conventional Art
[0004] FIG. 1 is a block diagram of the co-generation according to
the conventional art.
[0005] The conventional co-generation depicted in FIG. 1 comprises
an electric generator 2 generating electricity, a drive source 10
(hereinafter referred to as engine) such as an engine and etc
generating heat as well as operating the electric generator 2, an
waste heat recovery apparatus 20 recovering the heat of the exhaust
gas generated from the engine 10, and a heat storage tank 30 at
which the waste heat of the waste heat recovery apparatus 20 is
used.
[0006] The electric generator 2 and the engine 10 are installed in
the inside of an engine room E of a chassis formed apart from the
heat required places 30.
[0007] The electricity generated at the electric generator 2 is
supplied to the home appliances such as the various kinds of
illuminators and the heat pump type air conditioner 4 and etc.
[0008] The heat pump type air conditioner 4 comprises a compressor
5, a 4-way valve 6, an indoor heat exchanger 7, an expanding
apparatus 8, and an outdoor heat exchanger 9.
[0009] The refrigerant compressed in the compressor 5 is circulated
to the compressor as passing the 4-way valve 6, the outdoor heat
exchanger 9, the expanding apparatus 8, indoor heat exchanger 7,
and the 4-way valve 6 in sequence when the heat pump type air
conditioner 4 is in a cooling operation, therefore, the outdoor
heat exchanger 9 operates as a condenser and the indoor heat
exchanger 7 operates as an evaporator taking the heat from indoor
air.
[0010] On the other hand, as the refrigerant compressed in the
compressor 5 is circulated to the compressor as passing the order
of the 4-way valve 6, the indoor heat exchanger 7, the expanding
apparatus 8, outdoor heat exchanger 9, and the 4-way valve 6 when
the heat pump type air conditioner 4 is in a heating operation,
therefore, the outdoor heat exchanger 9 operates as a evaporator
and the indoor heat exchanger 7 operates as a condenser warm the
indoor air.
[0011] The waste heat recovery apparatus 20 comprises a waste heat
recovery heat exchanger 22 taking the heat of the exhaust gas
exhausted from the engine 10 and a cooling water heat exchanger 24
taking the heat of the cooling water which cools down the engine
10.
[0012] The waste heat recovery heat exchanger 22 is connected with
the water boil tank 30 and the first heat supply line 23, and the
waste heat took from the exhaust gas of engine is transferred to
the heat storage tank 30 through the first heat supply line 23.
[0013] The cooling water heat exchanger 24 is connected with the
heat storage tank 30 and the second heat supply line 25, and the
heat took from the cooling water which cools down the engine 10 is
transferred to the heat storage tank 30 through the second heat
supply line 25.
[0014] The water boiling is connected with the heat storage tank
30.
[0015] The efficiency of the co-generation according to the
conventional art cannot be maximized, since the waste heat of the
engine 10 cannot be used for the heat pump type air conditioner 4,
but only can be used for the water boiling.
SUMMARY OF THE INVENTION
[0016] The present invention is contrived to overcome problems of
the conventional art, and an object of the present invention is to
provide a co-generation minimizing the power consumption needed for
operating of the air conditioner as well as maximizing the water
boiling efficiency during the air-cooling operation of the air
conditioner.
[0017] Another object of the present invention is to provide a
co-generation preventing the reduction of the air warming capacity
generated when the outdoor heat exchanger is frosted as well as
boiling water during the air warming operation of the air
conditioner.
[0018] Another object of the present invention is to provide a
cogeneration minimizing the power consumption needed for the
operation of the air conditioner by increasing the evaporation
pressure of the air conditioner when the air conditioner is under
the air-warming mode without the water boil request.
[0019] The co-generation according to the present invention to
achieve the above-mentioned object comprises an electric generator;
a drive source operating the electric generator; a waste heat
recovery heat exchanger recovering the exhaust gas heat of the
drive source; a water boil heat exchanger boiling water; an air
conditioner air-conditioning the indoor air; a radiant heat
exchanger radiating heat to outside; a supply heat exchanger
installed on the refrigerant path of the air conditioner; and a
heat transfer path connecting the waste heat recovery heat
exchanger, the water boil heat exchanger, the radiant heat
exchanger, and the supply heat exchanger.
[0020] A heat medium circulating pump circulating the heat medium
through the waste heat recovery heat exchanger, the water boil heat
exchanger, the radiant heat exchanger, and the supply heat
exchanger.
[0021] The co-generation further comprised a water boil/radiant
heat exchanger bypassing apparatus bypassing the heat of the waste
heat recovery heat exchanger through the water boil heat exchanger
and the radiant heat exchanger; a radiant heat exchanger bypassing
apparatus bypassing the heat of the waste heat recovery heat
exchanger through the radiant heat exchanger; and the supply heat
exchanger bypassing apparatus bypassing the heat of the waste heat
recovery heat exchanger through the supply heat exchanger.
[0022] The water boil/radiant heat exchanger bypassing apparatus
includes a water boil/radiant heat exchanger bypassing path formed
at the heat transfer path; a water boil/radiant heat exchanger
bypassing valve installed at the diverging point of the water
boil/radiant heat exchanger bypassing path and the heat transfer
path.
[0023] The radiant heat exchanger bypassing apparatus includes a
radiant heat exchanger bypassing path formed at the heat transfer
path; and a radiant heat exchanger bypassing valve installed at the
diverging point of the radiant heat exchanger bypassing path and
the heat transfer path.
[0024] The supply heat exchanger bypassing apparatus includes a
supply heat exchanger bypassing path formed at the heat transfer
path; and a supply heat exchanger bypassing valve installed at the
diverging point of the supply heat exchanger bypassing path and the
heat transfer path.
[0025] The drive source, the electric generator, and the waste heat
recovery heat exchanger are installed at the engine unit, and the
water boil heat exchanger and the radiant heat exchanger are
installed at the radiant unit.
[0026] The air conditioner is a heat pump type air conditioner
comprising a compressor, a 4-way valve, an outdoor heat exchanger,
an expansion apparatus, and an indoor heat exchanger.
[0027] The heat pump type air conditioner further comprises an
outdoor heat exchanger bypassing apparatus bypassing the
refrigerant through the outdoor heat exchanger.
[0028] The outdoor heat exchanger bypassing apparatus includes an
outdoor heat exchanger bypassing path connected with the
refrigerant path at the inlet side and the outlet side; an outdoor
heat exchanger outlet valve installed at the refrigerant path of
outlet of the outdoor heat exchanger; outdoor heat exchanger
bypassing valve opening and shutting the outdoor heat exchanger
bypassing path; an outdoor heat exchanger connection path
connecting the outdoor heat exchanger bypassing path and the
refrigerant path of the inlet side of the outdoor heat exchanger; a
connection path opening and shutting valve connected with the
outdoor heat exchanger; and a check valve installed at the
refrigerant path of the inlet side of the outdoor heat exchanger
stream the refrigerant flown from the indoor machine into the
outdoor heat exchanger bypassing path during the air warming
operation.
[0029] The outdoor heat exchanger bypassing apparatus includes an
outdoor heat exchanger bypassing path connected with the
refrigerant path of the inlet side and the outlet side of the
outdoor heat exchanger; an outdoor heat exchanger outlet valve
installed at the refrigerant path of the outlet side of the outdoor
heat exchanger; an outdoor heat exchanger bypassing valve opening
and shutting the outdoor heat exchanger bypassing path; and an
outdoor heat exchanger inlet valve installed at the refrigerant
path of the inlet side of the outdoor heat exchanger.
[0030] The supply heat exchanger is installed on the refrigerant
path between the 4-way valve and the outdoor heat exchanger.
[0031] The compressor, 4-way valve, and the outdoor heat exchanger
are installed at the outdoor machine, the indoor heat exchanger is
installed at the indoor machine, and the expansion apparatus is
installed at least one of the outdoor machine and the indoor
machine.
[0032] The supply heat exchanger is installed at the inside of the
outdoor machine.
[0033] The co-generation further comprises a heat storage tank
connected with the water boil heat exchanger and the water
circulation path, and a water supply tank connected with the water
circulation path and the water supply path.
[0034] A heat storage circulation pump pumping the water in the
heat storage tank to be circulated after passing through the water
boil heat exchanger and the heat storage valve opening and shutting
the water circulation path are installed at the water circulation
path.
[0035] A water supply pump pumping the water in the water supply
tank to be supplied to the water circulation path and the water
supply valve opening and shutting the water circulation path are
installed at the water supply path.
[0036] The co-generation according to the present invention
comprises an electric generator; a drive source operating the
electric generator; a waste heat recovery heat exchanger recovering
the exhaust gas heat of the drive source; a water boil heat
exchanger boiling water; an air conditioner air-conditioning the
indoor air; a supply heat exchanger installed at the refrigerant
path of the air conditioner; and a heat transfer path connecting
the waste heat recovery heat exchanger, water boil heat exchanger,
and the supply heat exchanger.
[0037] The co-generation further comprises a water boil heat
exchanger bypassing apparatus bypassing the heat of the waste heat
recovery heat exchanger through the water boil heat exchanger; and
a supply heat exchanger bypassing apparatus bypassing the heat of
the waste heat recovery heat exchanger through the supply heat
exchanger.
[0038] The co-generation according to the present invention
comprises an electric generator; and operation element operating
the electric generator; a waste heat recovery heat exchanger
recovering the exhaust gas heat of the drive source; a water boil
heat exchanger boiling water; a radiant heat exchanger radiating
heat to outside; an air conditioner air-conditioning the indoor
air; a supply heat exchanger installed on the refrigerant path of
the air conditioner; a heat transfer path connecting the waste heat
recovery heat exchanger, the water boil heat exchanger, the radiant
heat exchanger, and the supply heat exchanger; a water boil/radiant
heat exchanger bypassing path formed at the heat transfer path; a
water boil/radiant heat exchanger bypassing valve installed at the
diverging point of the water boil/radiant heat exchanger bypassing
path and the heat transfer path; a radiant heat exchanger bypassing
path formed at the heat transfer path; a radiant heat exchanger
bypassing valve installed at the diverging point of the radiant
heat exchanger bypassing path and the heat transfer path; a supply
heat exchanger bypassing path formed at the heat transfer path; a
supply heat exchanger bypassing valve installed at the diverging
point of the supply heat exchanger bypassing path and the heat
transfer path; and a control unit controlling the water
boil/radiant heat exchanger bypassing valve, the radiant heat
exchanger bypassing valve, and the supply heat exchanger bypassing
valve in accordance with the air cooling/air warming and the water
boiling of the air conditioner.
[0039] The co-generation according to the present invention
configured as above has some advantages in that the water boiling
capacity is maximized as the heat recovered from the drive source,
such as engine and etc, is used for water boiling and the heat. of
the refrigerant recovered while the refrigerant is condensed at the
supply heat exchanger is used for water boiling when the air
conditioner is under the air cooling mode and the water boiling is
required, and that the consumption electricity needed for operating
the air conditioner is reduced as the condensing pressure is
decreased.
[0040] Furthermore, the co-generation of the present invention has
an advantage in that the water boiling capacity is maximized as the
refrigerant is evaporated only at the heat exchanger and not
passing through the supply heat exchanger when the air conditioner
is under the air-warming mode and has a water boiling request.
[0041] Furthermore, the co-generation of the present invention has
an advantage in that the frosting of the outdoor heat exchanger and
the reducing of the air-warming capacity according to the frosting
are prevented as the refrigerant is evaporated only at the supply
heat exchanger and not passing through the outdoor heat exchanger
when the air conditioner is under the air-warming mode and has a
water boiling request.
[0042] Moreover, the co-generation of the present invention has an
advantage in that the consumption electricity needed for operating
the air conditioner is reduced as the heat recovered from the drive
source, such as the engine and etc, increases the evaporation
pressure as used for evaporating the refrigerant when the air
conditioner is under the air warming mode and has a water-boiling
request.
BRIEF DESCRIPTION OF THE DRAWING
[0043] FIG. 1 is a block diagram of the co-generation according to
the conventional art.
[0044] FIG. 2 is a block diagram illustrating the air conditioner
of an embodiment of the co-generation according to the present
invention operating for air-cooling and under water boil mode,
[0045] FIG. 3 is a block diagram illustrating the air conditioner
of an embodiment of the co-generation according to the present
invention operating for air-cooling under the not water boil
mode,
[0046] FIG. 4 is a block diagram illustrating the condition that
the air conditioner of an embodiment of the co-generation according
to the present invention operates for air warming under the outdoor
fan control mode and the water boil mode,
[0047] FIG. 5 is a block diagram illustrating the air conditioner
of an embodiment of the co-generation according to the present
invention operating for air warming under the low-pressure control
mode and the water boil mode,
[0048] FIG. 6 is a block diagram illustrating the air conditioner
of an embodiment of the co-generation according to the present
invention operating for air warming under the maximum supply mode
and the not water boil mode,
[0049] FIG. 7 is a block diagram of another embodiment of the
co-generation according to the present invention.
[0050] FIG. 8 is a block diagram of another embodiment of the
co-generation according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0051] Reference will now be made in detail hereinafter as for the
preferred embodiment of the co-generation in accordance with the
present invention with reference to the accompanying drawings.
[0052] FIG. 1 is a block diagram of the co-generation according to
the conventional art, FIG. 2 is a block diagram illustrating the
air conditioner of an embodiment of the co-generation according to
the present invention operating for air-cooling and under water
boil mode, FIG. 3 is a block diagram illustrating the air
conditioner of an embodiment of the co-generation according to the
present invention operating for air-cooling under the not water
boil mode, FIG. 4 is a block diagram illustrating the condition
that the air conditioner of an embodiment of the co-generation
according to the present invention operates for air warming under
the outdoor fan control mode and the water boil mode, FIG. 5 is a
block diagram illustrating the air conditioner of an embodiment of
the co-generation according to the present invention operating for
air warming under the low-pressure control mode and the water boil
mode, and FIG. 6 is a block diagram illustrating the air
conditioner of an embodiment of the co-generation according to the
present invention operating for air warming under the maximum
supply mode and the not water boil mode.
[0053] The co-generation according to the present embodiment
comprises an air conditioner 50 coordinating the indoor, a water
boil heat exchanger 70 boiling water, an electric generator 110
generating electricity, a drive source 120 operating the electric
generator 110 and generating heat, and the heat of the exhaust gas
exchanger 130 recovering the heat of the exhaust gas of the drive
source 120 as illustrated in FIGS. 2 to 6.
[0054] It is possible for the air conditioner 50 to be composed of
a heat pump type air conditioner including a compressor 52, a 4-way
valve 54, an indoor heat exchanger 56, expansion apparatus 58 and
59, and an outdoor heat exchanger 60, and also possible to be
composed of an exclusive air-cooling air conditioner including a
compressor 52, an indoor heat exchanger 56, an expanding apparatus
58 and 59, and an outdoor heat exchanger 60, but not including the
4-way valve. The reference will now be made in detail as limited to
the air conditioner composed of the heat pump type air conditioner
on the following.
[0055] As the heat pump type air conditioner is composed of an
outdoor machine O and an indoor machine I, it is possible that an
indoor machine I is connected with an outdoor machine O, also
possible that a plurality of indoor machines I are connected in a
row with an outdoor machine O, also possible that a plurality of
outdoor machines O are connected in a row each other, and also
possible that a plurality of indoor machineries I are connected in
a row each other.
[0056] The compressor 52, the 4-way valve 54, the indoor heat
exchanger 56, the expansion apparatus 58, and the outdoor heat
exchanger 60 are connected with the refrigerant laying pipe 61, a
refrigerant path.
[0057] An accumulator 53 in which the liquid refrigerant a part of
refrigerant is accumulated is installed at the suction pipe through
which the refrigerant is inhaled in the compressor 52.
[0058] The 4-way valve 54 controls the inner path for flowing the
refrigerant compressed at the compressor 52 to the indoor heat
exchanger 56 as illustrated in FIGS. 4 to 6 when the air warming
operation of the heat pump type air conditioner 50, and controls
the inner path for flowing the refrigerant compressed at the
compressor 52 to the outdoor heat exchanger 60 as illustrated in
FIGS. 2 and 3 when the air-cooling operation of the heat pump type
air conditioner 50.
[0059] An indoor fan 57 sending indoor air to the indoor heat
exchanger 56 is installed beside the indoor heat exchanger 56.
[0060] The expansion apparatus 58 and 59 are described as limited
to be composed of a vessel or a linear expansion valve.
[0061] The expansion apparatus 58 and 59 include an indoor
expansion valve 58 controlling each amount of the refrigerant of
the each indoor machinery I as installed at the indoor machinery I,
and an outdoor expansion valve 59 expanding the refrigerant while
the air warming operation as installed at the outdoor machinery
O.
[0062] An outdoor fan 61 sending the outdoor air to the outdoor
heat exchanger 60 is installed beside the outdoor heat exchanger
60.
[0063] The compressor 52, 4-way valve 54, outdoor expansion valve
59, and the outdoor heat exchanger 60 are installed at the outdoor
machinery O.
[0064] The indoor heat exchanger 56 and the indoor expansion valve
58 are installed at the indoor machinery I.
[0065] The compressor 52, indoor fan 57, and the outdoor fan 61 of
the heat pump type air conditioner 50 are operated by electricity
generated by the electric generator 110.
[0066] The heat pump type air conditioner 50 further includes an
outdoor heat exchanger bypassing apparatus 62 for bypassing of the
refrigerant through the outdoor heat exchanger 60.
[0067] The outdoor heat exchanger bypassing apparatus 62 comprises
an outdoor heat exchanger bypassing path 63 that an end is
connected with the refrigerant pipe-call an inlet side refrigerant
path on the following--connected with the inlet side of the outdoor
heat exchanger 60 and the other end is connected with the
refrigerant pipe-call an inlet side refrigerant path on the
following--connected with the outlet side of the outdoor heat
exchanger 60 for bypassing of the refrigerant expanded at the
expansion apparatus 58 through the outdoor heat exchanger 60.
[0068] An outdoor expansion valve 59 is installed at the outdoor
heat exchanger bypassing path 63.
[0069] The outdoor heat exchanger bypassing path 63 further
comprises an outdoor heat exchanger outlet valve 64 installed at
the outlet side refrigerant path, an outdoor heat exchanger
bypassing path 65 opening and shutting the outdoor heat exchanger
bypassing path 63, an outdoor heat exchanger connection path 66
connecting the heat exchanger bypassing path 63 and the inlet side
refrigerant path, a connection path opening and shutting valve 67
installed at the outdoor heat exchanger connection path 66, a check
valve 69 breaking the refrigerant current to the inlet side to
stream the refrigerant flown from the indoor machine I into the
outdoor heat exchanger bypassing path 63.
[0070] The co-generation further comprises a supply heat exchanger
68 installed on the refrigerant path of the heat pump type air
conditioner 50 for transferring the waste heat recovered from the
waste heat recovery heat exchanger 130 to the refrigerant of the
heat pump type air conditioner 50, transferring the heat from the
refrigerant of the heat pump type air conditioner 50 to the water
boil heat exchanger 70 if necessary.
[0071] The supply heat exchanger 68 is installed on the refrigerant
path between the 4-way valve 54 and the outdoor heat exchanger
60.
[0072] That is, the supply heat exchanger 68 capable of functioning
as a condenser condensing the refrigerant during the air-warming
operation of the heat pump type air conditioner 50 and functioning
as a evaporator evaporating the refrigerant during the air warming
operation of the heat pump type air conditioner 50.
[0073] A heat storage tank 80 is connected with the water
circulation path 82 of at the water boil heat exchanger 70.
[0074] A heat storage circulation pump pumping the water in the
heat storage tank 80 to be circulated to the heat storage tank
after passing through the water boil heat exchanger 70 and a heat
storage valve opening and shutting the water circulation path 82
are installed at the water circulation path 82.
[0075] A water supply tank 90 is connected with the water supply
path at the water circulation path 82.
[0076] A water supply pump 94 pumping the water in the water supply
tank 90 to be supplied to the water circulation path 82 and a water
supply valve 96 opening and shutting the water supply path 94 are
installed at the water supply path 92.
[0077] The electric generator 110 supplies electricity to the
various electrical appliances, such as a heat pump type air
conditioner 50 or the valorous illuminants, as one of an
alternating current generator or a direct current generator, and
generates electricity during the rotation of the output shaft as a
rotor is connected with the output of a drive source.
[0078] The electric generator 110 supplies the electricity through
the electric line as connected with the heat pump type air
conditioner 50 and etc with the electric line 111.
[0079] The drive source 120 is composed of a fuel cell or the
fossil fuels such as gas or petroleum and etc, and the description
is limited to the engine on the following.
[0080] A fire door 121 through with the fuel, such as gas or
petroleum is supplied, an air intake 122 through which the outdoor
air is inhaled to the engine 120, and an air exhaust outlet 123
through which the exhaust gas exhausted from the engine 120 passes
through are installed at the engine 120.
[0081] The waste heat recovery heat exchanger 130 is composed of a
coolant heat exchanger 132 recovering the heat of the coolant of
the engine 120 as connected with the engine 120 and the coolant
line 124, and a waste heat recovery heat exchanger 134 installed at
the air exhaust outlet 123 for recovering exhaust heat exhausted
from engine 120.
[0082] A coolant circulation pump 125 is installed at the engine
120 and the coolant heat exchanger 132 for the coolant to be
circulated through the engine 120 and the coolant heat exchanger
132.
[0083] The electric generator 110, engine 120, and the waste heat
recovery heat exchanger 130 are installed at the engine unit
EN.
[0084] The co-generation comprises a heat transfer apparatus 150
transferring the heat of the waste heat recovery heat exchanger 130
to the heat required places, such as the water boil heat exchanger,
the heat pump type air conditioner and etc.
[0085] Here, it is possible for the heat transfer apparatus 150 to
be composed as transferring the heat of the waste heat recovery
heat exchanger 130 only to the water heat exchanger 70 and the heat
pump type air conditioner 50, transferring the heat of the waste
heat recovery heat exchanger 130 to the water boil heat exchanger
70 and the heat pump type air conditioner 50, and transferring the
heat of the heat pump type air conditioner 50 to the water boil
heat exchanger 70 if needed.
[0086] As the water boiling capacity of the heat transferring
apparatus 150 is maximized when the heat of the refrigerant is
transferred to the water boil heat exchanger 70 during the
air-cooling operation of the heat pump type air conditioner 50, the
heat transferring apparatus 150 is described as limited that the
heat of the heat of the exhaust gas exchanger 130 is transferred to
the water boil heat exchanger 70 and the heat pump type air
conditioner 50, and the heat of the heat pump type air conditioner
50 is transferred to the water boil heat exchanger 70, if
necessary.
[0087] The heat transfer apparatus 150 includes a heat transfer
path 170 connecting the waste heat recovery heat exchanger 130, the
water heat exchanger 70, the radiant heat exchanger 160, and the
supply heat exchanger 68.
[0088] As the radiant heat exchanger 160 exhausts the entire of a
portion of the heat recovered from the heat of the exhaust gas
exchanger 130 to outside if necessary, a radiant heat fan 162
sending the outside air to the radiant heat exchanger 160 is
installed beside the radiant heat exchanger 160.
[0089] A heat medium circulation pump 172 for circulating of the
heat medium such as an anti freezing solution-call heat medium on
the following--through the heat of the exhaust gas exchanger 130,
water heat exchanger 70, radiant heat exchanger 160, and the supply
heat exchanger 68 is installed at the heat transfer path 170.
[0090] On the other hand, as the heat transfer apparatus 150
transfers the heat recovered from the engine 120 the most suitably
in accordance with the water boil, air-cooling/air warming, and the
condition of the outdoor temperature when the heat recovered from
the engine, the heat medium passed through the heat of the exhaust
gas exchanger 130, bypasses at least one of the water boil heat
exchanger 70, radiant heat exchanger 160, and the supply heat
exchanger 68, it is described as limited that the heat medium
passed through the remained heat exchanger 130 bypasses through
each of the heat exchanger 70, 160, and 68 on the following.
[0091] The heat transfer apparatus 150 further includes the water
boil/radiant heat exchanger bypassing apparatus 180 formed for
bypassing of the heat of the heat of the exhaust gas exchanger 130
through the water boil heat exchanger and the radiant heat
exchanger.
[0092] The water boil/radiant heat exchanger bypassing apparatus
180 includes a water boil/radiant heat exchanger bypassing path 182
formed at the heat transfer path 170; and a water boil/radiant heat
exchanger bypassing valve 184 installed at the diverging point of
the water boil/radiant heat exchanger bypassing path 182 and the
heat transfer path 170.
[0093] The heat transfer apparatus 150 further includes a radiant
heat exchanger bypassing apparatus 190 bypassing the heat of the
heat of the exhaust gas exchanger 130 through the radiant heat
exchanger 160.
[0094] The radiant heat exchanger bypassing apparatus 190 includes
a radiant heat exchanger bypassing path 192 formed at the heat
transfer path 170; and a radiant heat exchanger bypassing valve 194
installed at the diverging point of the radiant heat exchanger
bypassing path 192 and the heat transfer path 170.
[0095] The heat transfer apparatus 150 further includes a supply
heat exchanger bypassing apparatus 200 bypassing the heat of the
heat of the exhaust gas exchanger 130 through the supply heat
exchanger 68.
[0096] The supply heat exchanger bypassing apparatus 200 includes a
supply heat exchanger bypassing path 202 formed at the heat
transfer path 170; and a supply heat exchanger bypassing valve 204
installed at the diverging point of the supply heat exchanger
bypassing path 202 and the heat transfer path 170.
[0097] Both of the water boil heat exchanger 70 and the radiant
heat exchanger 160 are installed at the radiant unit EX of the
co-generation.
[0098] All of the water boil/radiant heat exchanger bypassing path
182, the water boil/radiant heat exchanger bypassing valve 184, the
radiant heat exchanger bypassing path 192, the radiant heat
exchanger bypassing valve 194, the supply heat exchanger bypassing
path 202, and the supply heat exchanger bypassing valve 204 are
installed at the radiant heat unit EX of the co-generation.
[0099] The co-generation further comprises a control unit 210
controlling the water boil/radiant heat exchanger bypassing valve
184, the radiant heat exchanger bypassing valve 194, the supply
heat exchanger bypassing valve 204, the outdoor heat exchanger
outlet valve 64, the outdoor heat exchanger bypassing valve 65, and
the connection path opening and shutting valve 67 in accordance
with the air-cooling/air warming and water boiling of the heat pump
type air conditioner 50.
[0100] The control unit 210 is composed of a master PCB 212
installed at the engine unit EN, and a slave PBC 214 installed at
the radiant heat unit EX and connected with the master PBC 212 by a
control line.
[0101] On the other hand, various sensors perceiving the inside
temperature or the flux of the engine unit EN and the heat radiant
unit EX are installed at the co-generation.
[0102] An intake port temperature sensor 220 composed of a
thermistor perceiving the temperature of outside air inhaled into
the intake port 12, a coolant heat exchanger outlet temperature
sensor 222 composed of a thermistor perceiving the temperature of
the outlet of the coolant heat exchanger 132 of the heat transfer
path 170, a waste gas heat exchanger outlet temperature sensor 224
composed of a thermistor 224A and RTD sensor 224B perceiving the
temperature of the outlet of the waste gas heat exchanger 134 of
the heat transfer path 170, and an exhaust pipe temperature sensor
226 composed of RTD sensors 226A, 226B perceiving the each
temperature of front and rear of the waste gas heat exchanger 134
of the exhaust pipe 123 are installed at the engine unit EX.
[0103] The No. 1 transfer path temperature sensor 230 perceiving
the before temperature of the heat medium circulation pump 172 of
the heat transfer path 170, the No. 2 heat transfer path
temperature sensor 232 perceiving the temperature between the
radiant heat exchanger bypassing path 192 and the radiant heat
exchanger bypassing valve 204 of the heat transfer path 170, and a
flowmeter gauging the flux of the water circulation path 82 are
installed at the radiant unit EX.
[0104] Furthermore, a water boil recover inlet temperature sensor
240 composed of an RTD sensor and the temperature sensor perceiving
the temperature of the water streaming into the water heat
exchanger 70; a water boil recover outlet temperature sensor 242
composed of an RTD sensor and the temperature sensor perceiving the
temperature water discharged from the water heat exchanger; a water
boil inlet temperature sensor 244 composed of an RTD sensor and the
temperature sensor perceiving the temperature of the heat medium
streaming into the water boil heat exchanger 70; and a water boil
outlet temperature sensor 246 composed of an RTD sensor and the
temperature sensor perceiving the temperature of the heat medium
discharged from the water boil heat exchanger 70 are installed at
the heat radiant unit EX.
[0105] The radiant heat unit EX is connected with the tank
connection path 252 that an expansion tank 250 is connected between
the heat medium circulation pump 172 and the supply heat exchanger
bypassing path 202 of the heat transfer path 170.
[0106] Reference will now be made in detail as for the operation of
the present invention configured as above.
[0107] First, when the engine 120 is operated, the electric
generator 110 generates electricity as the rotor is rotated, and
the generated electricity is supplied to the heat pump type air
conditioner 50 through the power line 111 as illustrated in FIGS. 2
to 5.
[0108] The heat of the waste gas of the engine and the coolant heat
of the exhaust gas are recovered at the heat of the exhaust gas
exchanger 130, the coolant heat exchanger 132 and the waste heat
recovery heat exchanger 134 during the operation of the engine
120.
[0109] The heat pump type air conditioner 50 controls the 4-way
valve 54 to be the air-cooling mode as well as operating the
compressor 52, shuts the outdoor heat exchanger bypassing valve 65
and the connection path opening and shutting valve 67 as well as
opening the outdoor heat exchanger outlet valve 64 while passing
the refrigerant through the outdoor heat exchanger 60, and opens
the outdoor heat exchanger bypassing valve 65 and the connection
path opening and shutting valve as well as shutting the outdoor
heat exchanger outlet valve 64 while controlling the refrigerant
not to pass through the outdoor heat exchanger 60.
[0110] Reference for the control method of the heat pump type air
conditioner will now be limited as the refrigerant passes through
the outdoor heat exchanger 60 for the convenience of
description.
[0111] As describing the flowing of the refrigerant of the heat
pump type air conditioner 50, the high-temperature and
high-pressure refrigerant compressed at the compressor 52 is
supplied to the supply heat exchanger passed through the 4-way
valve 54 and condensed as the heat is taken away from the supply
heat exchanger while passing the supply heat exchanger 68, and
condensed as passing through the outdoor heat exchanger 60.
[0112] The condensed refrigerant is evaporated in the indoor heat
exchanger 56 after expanded in the expansion valve 58 after
transferred to the indoor machine I, and after that, transferred to
the outdoor machine O and circulated to the compressor through the
4-way valve 54.
[0113] That is, the refrigerant of the heat pump type air
conditioner 50 is condensed at the supply heat exchanger 68 and the
supply heat exchanger, and cools the indoor air as evaporated in
the indoor heat exchanger 56.
[0114] On the other hand, the control unit 210 controls the water
boil/radiant heat exchanger bypassing valve 184 to be the water
boil/radiant heat supply mode as well as operating the heat medium
circulation pump 172 for circulation of the heat medium of the heat
transfer path 170 through the waste heat recovery heat exchanger
130, water boil heat exchanger 70, and the supply heat exchanger
68, and controls the supply heat exchanger bypassing valve 204 to
be the supply heat exchanger mode.
[0115] At this time, as the control unit 210 controls the radiant
heat exchanger bypassing valve 194 in accordance with the
temperature of the heat medium, it controls the radiant heat
exchanger bypassing valve 194 to be the radiant heat exchanger
supply mode and when the temperature of the heat medium is over the
set point, and it controls the radiant heat exchanger bypassing
valve 194 to be the bypassing mode when the temperature of the heat
medium is not more than the set point.
[0116] As describing the flowing of the heat medium in the heat
transfer path 170, the heat medium in the heat transfer path 170 is
heated as receiving the heat while passing through the waste heat
recovery heat exchanger 130 during the operation of the heat medium
circulation pump 172, as illustrated in FIG. 2, and it streams into
the water heat exchanger 70 as passing through the water
boil/radiant heat exchanger 130.
[0117] The heat medium flown into the water boil heat exchanger 70
heats the water boil heat exchanger 70 as transferring the heat to
the water boil exchanger 70, and after that, it passes through or
bypasses the radiant heat exchanger 160 in accordance with the
temperature condition of the system.
[0118] The heat medium passed through or by passed the radiant heat
exchanger 160 is supplied as a supply heat exchanger 68 after
passing through the supply heat exchanger bypassing valve 204, the
temperature of it is raised by receiving heat from the high
temperature and high pressure refrigerant gas passing through the
supply heat exchanger 68, and it is circulated to the waste heat
recovery heat exchanger 130.
[0119] That is, of the co-generation, the water boiling capacity is
maximized of the water boil heat exchanger 70 as the heat of the
waste heat recovery heat exchanger 130 and the supply heat
exchanger 68 is transferred to the water boil heat exchanger 70
through the heat transfer path 170, and the consumption electricity
of the compressor 52 is reduced as the refrigerant of the heat pump
type air conditioner 50 is condensed at the supply heat exchanger
68.
[0120] The co-generation controls the refrigerant to or not to pass
through the outdoor heat exchanger 60 as well as operating the heat
pump type air conditioner 50 to be air-cooling mode when the heat
pump type air-conditioner is under the air-cooling mode without
request of water boiling as illustrated in FIG. 3, and controls
that the heat medium in the heat transfer path 170 is circulated
through the waste heat recovery heat exchanger 130 and supply heat
exchanger 68.
[0121] The heat pump type air conditioner 50 controls the 4-way
valve 54 to be the air-cooling mode as well as operating the
compressor 52, and shuts the outdoor heat exchanger bypassing path
valve 65 and the connection path 67 as well as opening the outdoor
heat exchanger outlet valve 64.
[0122] The co-generation operates the heat medium circulation pump
172 for controlling the heat medium in the heat transfer path 170
to be circulated through the waste heat recovery heat exchanger 130
and the supply heat exchanger 68, controls the water boil/radiant
heat exchanger bypassing valve 184 to be the water boil/radiant
heat exchanger supply mode, controls the radiant heat exchanger
bypassing valve 194 to be the radiant heat exchanger supply mode,
and controls the supply heat exchanger bypassing valve 204 to be
the supply heat exchanger supply mode.
[0123] On the other hand, The co-generation operates the heat
medium circulation pump 172 for controlling the heat medium in the
heat transfer path 170 not to be circulated through the waste heat
recovery heat exchanger 130 and the supply heat exchanger 68,
controls the water boil/radiant heat exchanger bypassing valve 184
to be the water boil/radiant heat exchanger supply mode, controls
the radiant heat exchanger bypassing valve 194 to be the radiant
heat exchanger supply mode, and controls the supply heat exchanger
bypassing valve 204 to be the supply heat exchanger bypassing
mode.
[0124] Reference for the control method of the heat pump type air
conditioner will now be limited as the refrigerant passes through
the supply heat exchanger 68 for the convenience of
description.
[0125] As describing the flowing of the refrigerant of the heat
pump type air conditioner 50, the high-temperature and
high-pressure refrigerant compressed at the compressor 52 is
supplied to the supply heat exchanger passed through the 4-way
valve 54 and condensed as the heat is taken away from the supply
heat exchanger while passing the supply heat exchanger 68, and
condensed as passing through the outdoor heat exchanger 60.
[0126] The refrigerant condensed is evaporated in the indoor heat
exchanger 56 after expanded in the expansion valve 58 after
transferred to the indoor machine I, and after that, transferred to
the outdoor machine O and circulated to the compressor through the
4-way valve 54.
[0127] That is, the refrigerant of the heat pump type air
conditioner 50 is condensed at the supply heat exchanger 68 and the
outdoor heat exchanger 60, and cools the indoor air as evaporated
in the indoor heat exchanger 56.
[0128] As describing the flowing of heat medium of the heat
transfer path 170, illustrated In FIG. 2, the heat medium in the
heat transfer path 170 is boiled as receiving heat while passing
through the waste heat recovery heat exchanger 130 during the
operation of the heat medium circulation pump 172, streams into the
water boil heat exchanger 70 as passing through the water
boil/radiant heat exchanger bypassing valve 184, streams into the
radiant heat exchanger 192 after passing through the water boil
heat exchanger 70, and radiates heat to outside as passing through
the radiant heat exchanger 192.
[0129] The heat medium radiated is supplied to the supply heat
exchanger 68 after passing through the supply heat exchanger
bypassing valve 204, the temperature of it gets higher as receiving
heat from the high-temperature and high-pressure refrigerant gas
passing through the supply heat exchanger 68, and then, circulated
to the waste heat recovery heat exchanger 130.
[0130] The over heating in the inside of the engine unit EN is
prevented as the heat of the waste heat recovery heat exchanger 130
is radiated at the waste heat recovery heat exchanger through the
heat transfer path 170, and the consumption electricity of the
compressor 52 is minimized as the condensing capacity of the heat
pump type air conditioner 50 is increased.
[0131] On the other hand, when the heat pump type air conditioner
50 is under the air warming mode without water boiling request, as
illustrated in FIG. 4, the co-generation passes the refrigerant
through the outdoor heat exchanger 60 as well as operating the heat
pump type air-conditioner 50 to be air warming mode, and controls
the heat medium in the heat transfer path 170 to be circulated
through the waste heat recovery heat exchanger 130 and water heat
exchanger 70 or, as illustrated in FIG. 5, controls the refrigerant
not to be circulated through the outdoor heat exchanger 60 as well
as operating the heat pump type air conditioner 50 to be the air
warming mode, and controls the heat medium in the heat transfer
path 170 to be circulated through the waste heat recovery heat
exchanger 130, water boil heat exchanger 70, and the supply heat
exchanger 68.
[0132] Here, it is desirable for the co-generation, as illustrated
in FIG. 4, to maximize the capacity of heat recovering to the water
boil heat exchanger 70 and the capacity of water boiling as
controlling the refrigerant to pass through the outdoor heat
exchanger 60 and the heat medium in the heat transfer path 170 to
be circulated through the waste heat recovery heat exchanger 130
and the water heat exchanger 70 when the outdoor temperature is not
cold enough for the outdoor heat exchanger not frosted over, and it
is desirable for the co-generation, as illustrated in FIG. 5, to
prevent deterioration of the water boiling capacity may be
generated when the outdoor heat exchanger 60 is frosted over as
stopping the passing of refrigerant through the outdoor heat
exchanger 60 and controlling the heat medium in the heat transfer
path 170 to be circulated through the waste heat recovery heat
exchanger 130, water boil heat exchanger 70, and the supply heat
exchanger 68.
[0133] Reference will now be made in detail to the case passing the
refrigerant to the outdoor heat exchanger 60 as well as operating
the heat pump type air conditioner 50 to be the air warming mode
controlling the heat medium in the heat transfer path 170 to be
circulated through the waste heat recovery heat exchanger 130 and
the water boil heat exchanger 70, as illustrated in FIG. 4.
[0134] The heat pump type air conditioner 50 controls the 4-way
valve 54 to be the air-warming mode as well as operating the
compressor 52, shuts the outdoor heat exchanger bypassing valve 65
as well as opening the outdoor heat exchanger outlet valve 64 and
the connection path opening and shutting valve 67.
[0135] As, describing the flowing of refrigerant in the heat pump
type air conditioner 50, the high-temperature and high-pressure
refrigerant compressed at the compressor 52 passes through the
4-way valve 54 and transferred to the indoor machine I, condensed
while passing through the indoor heat exchanger 60 of the indoor
machine I, and expanded while passing through the indoor expansion
valve 58.
[0136] The refrigerant expanded at the indoor expansion valve 58 is
transferred to the outdoor machine O and expanded again while
passing through the outdoor expansion valve 59, and streams into
the outdoor heat exchanger 60.
[0137] The refrigerant flown into the outdoor heat exchanger 60
evaporated while passing through the outdoor heat exchanger 60,
passes through the supply heat exchanger 68 without heat
exchanging, and circulated to the compressor 52 after passing
through the 4-way valve 54.
[0138] That is, the refrigerant in the heat pump type air
conditioner warms indoor as condensed at the indoor heat exchanger
56 and evaporated at the outdoor heat exchanger 60.
[0139] The control unit 210 controls the water boil/radiant heat
exchanger bypassing valve 184 to be the water boil/radiant heat
exchanger supply mode as well as operating the heat medium
circulation pump 172 to circulate the heat medium in the heat
transfer path 170 through the waste heat recovery heat exchanger
130 and the water boil heat exchanger 70, and controls the supply
heat exchanger bypassing valve 204 to be the supply heat exchanger
bypassing mode.
[0140] As the control unit 210 controls the radiant heat exchanger
bypassing valve 194 in accordance with the temperature, it controls
the radiant heat exchanger bypassing valve 194 to be the radiant
heat exchanger supply mode when the temperature of the heat medium
is over the set point, and controls the radiant heat exchanger
bypassing valve 194 to be the bypassing mode when the temperature
is not more than the set point.
[0141] As describing the flowing of the heat medium in the heat
transfer path 170, the heat medium in the heat transfer path 170 is
heated as receiving heat while passing through the waste heat
recovery heat exchanger 130 during the operation of the heat medium
circulation pump 172, illustrated in FIG. 4, and streams into the
water boil heat exchanger 70 as passing through the water
boil/radiant heat exchanger bypassing valve 184.
[0142] The heat medium flown into the water boil heat exchanger 70
heats the water boil heat exchanger as transferring heat to the
water boil heat exchanger 70, and passes through or bypasses the
radiant heat exchanger 160 in accordance with the temperature
condition and etc of the system.
[0143] The heat medium passed through or bypassed the radiant heat
exchanger 160 bypasses the supply heat exchanger 68 after passing
through the supply heat exchanger bypassing valve 204, and
circulated through the radiant heat exchanger 130.
[0144] That is, the water boiling capacity of the water boil heat
exchanger 70 of the co-generation is improved as the heat of the
radiant heat exchanger 130 is transferred to the water heat
exchanger 70 through the heat transfer path 170.
[0145] Reference will now be made in detail to the case not passing
the refrigerant to the outdoor heat exchanger 60 as well as
operating the heat pump type air conditioner 50 to be the air
warming mode and controlling the heat medium in the heat transfer
path 170 to be circulated through the waste heat recovery heat
exchanger 130, water boil heat exchanger 70, and the supply heat
exchanger 68.
[0146] As describing the flowing of the refrigerant of the heat
pump type air conditioner 50, the high-temperature and
high-pressure refrigerant compressed at the compressor 52 is
transferred to the indoor machine I as passing through the 4-way
valve, condensed while passing through the indoor heat exchanger 60
of the indoor machine I, and expanded while passing through the
indoor expansion valve 58.
[0147] The refrigerant expanded at the indoor expansion valve 58 is
transferred to the outdoor machine O and expanded again while
passing through the outdoor expansion valve 59, and bypasses the
outdoor heat exchanger 60.
[0148] The refrigerant bypassed the outdoor heat exchanger 60 is
evaporated as receiving heat from the supply heat exchanger 68
while passing through the supply heat exchanger 68, and is
circulated to the compressor after passing through the 4-way valve
54.
[0149] That is, the refrigerant 50 of the heat pump type air
conditioner 50 is condensed at the indoor heat exchanger 56, and is
warming the indoor air as evaporated at the supply heat exchanger
68.
[0150] The control unit 210 controls the water boil/radiant heat
exchanger bypassing valve 184 to be water boil/radiant heat
exchanger supply mode as well as operating the heat medium
circulation pump 172 for the heat medium in the heat transfer path
170 to be circulated through the waste heat recovery heat exchanger
130, water boil heat exchanger 70, and the supply heat exchanger
68, and controls the supply heat exchanger bypassing valve 204 to
be the supply heat exchanger supply mode.
[0151] As the control unit 210 controls the radiant heat exchanger
bypassing valve 194 in accordance with the temperature of the heat
medium, it controls the radiant heat exchanger bypassing valve 194
to be the radiant heat exchanger supply mode when the temperature
of the heat medium is over the set point, and it controls the
radiant heat exchanger bypassing valve 194 to be bypassing mode
when the temperature of the heat medium is not more than the set
point.
[0152] As describing the flowing of the heat medium in the heat
transfer path 170, the heat medium in the heat transfer path 170 is
heated as receiving heat while passing through the waste heat
recovery heat exchanger 130 during the operation of the heat medium
circulation pump 172, illustrated in FIG. 5, and it streams into
the water boil heat exchanger 70 after passing through the
water/radiant heat exchanger bypassing valve 184.
[0153] The heat medium flown into the water boil heat exchanger 70
heats the water boil heat exchanger 70 as transferring heat, and
passes through or by passes the radiant heat exchanger 160 in
accordance with the temperature condition of the system.
[0154] The heat medium passed through or bypassed the radiant heat
exchanger 160 is supplied to the supply heat exchanger 68 through
the supply heat exchanger bypassing valve 204, evaporates the
refrigerant as heating the refrigerant passing through the supply
heat exchanger 68, and is circulated to the waste heat recovery
heat exchanger 130.
[0155] That is, the water boiling capacity of the water heat
exchanger 70 of the co-generation is improved as the heat of the
waste heat recovery heat exchanger 130 is transferred to the water
boil heat exchanger 70 through the heat transfer path 170, and the
frosting g and the following problem, reducing of the air warming
capacity may be generated when the refrigerant passes through the
outdoor heat exchanger 60 are prevented as the supply heat
exchanger 68 can stop passing the refrigerant through the outdoor
heat exchanger as operating as a evaporator.
[0156] The co-generation controls the refrigerant no to pass
through the outdoor heat exchanger 60 as well as operating the heat
pump type air conditioner 50 to be the air warming mode, and
controls the heat medium in the heat transfer path 170 not to be
circulated through the waste heat recovery heat exchanger 130,
supply heat exchanger 68, and the water boil heat exchanger 70 when
the heat pump type air conditioner 50 is under the air warming mode
without water boiling request, illustrated in FIG. 6.
[0157] The heat pump type air conditioner 50 controls the 4-way
valve 54 to be the air warming mode as well as operating the
compressor 52 and opens the outdoor heat exchanger bypassing valve
65 as well as shutting the outdoor heat exchanger outlet valve 64
and the connection path opening and shutting valve 67.
[0158] As describing the flowing of the refrigerant in the heat
pump type air conditioner 50, the high-temperature and
high-pressure refrigerant compressed at the compressor 52 is
transferred to the indoor machine as passing through the 4-way
valve 54, condensed while passing through the indoor heat exchanger
60 of the indoor machine I, and expanded while passing through the
indoor expansion valve 58.
[0159] The refrigerant expanded at the indoor expansion valve 58 is
transferred to the outdoor machine O and expanded again while
passing through the outdoor expansion valve 59, and bypasses the
outdoor heat exchanger 60.
[0160] The refrigerant bypassed the outdoor heat exchanger 60 is
evaporated while passing through the supply heat exchanger 68, and
circulated to the compressor 52 as passing through the 4-way valve
54.
[0161] That is, the refrigerant of the heat pump type air
conditioner 50 warms the indoor air as condensed at the indoor heat
exchanger 56 and evaporated at the supply heat exchanger 68.
[0162] The control unit 210 operates the heat medium circulation
pump 172 for the heat medium in the heat transfer path 170 to be
circulated through the waste heat recovery heat exchanger 130 and
the supply heat exchanger 68, and controls the water boil/radiant
heat exchanger bypassing valve 184 to be the water boil/radiant
heat exchanger bypassing mode for the heat medium not to pass
through the water boil heat exchanger 70.
[0163] As describing the flowing of the heat medium of the heat
transfer path 170, during the operation of heat medium circulation
pump 172, as illustrated in FIG. 6, the heat medium in the heat
transfer path 170 is heated as receiving heat while passing through
the waste heat recovery heat exchanger 130, then, bypasses the
water boil heat exchanger 70 the radiant heat exchanger 160, and
stream into the supply heat exchanger 68.
[0164] The heat medium flown into the supply heat exchanger 68
evaporates the refrigerant as heating the refrigerant passing
through the supply heat exchanger 68, and is circulated to the
waste heat recovery heat exchanger 130.
[0165] That is, the heat of the waste heat recovery heat exchanger
130 of the co-generation is not transferred to the water boil heat
exchanger 70, but is centralized to the supply heat exchanger 68,
and the consumption electricity of the compressor 52 is reduced as
the pressure is risen with the evaporation of the refrigerant of
the heat pump type air-conditioner 50 at the supply heat exchanger
68.
[0166] FIG. 7 is a block diagram of another embodiment of the
co-generation according to the present invention. The co-generation
according to the present embodiment, as illustrated in FIG. 7,
comprises an outdoor heat exchanger bypassing apparatus 63' that
the outdoor heat exchanger bypassing apparatus 62' is connected
with the inlet side refrigerant path and the outlet side
refrigerant path of the outdoor heat exchanger 60 during the
air-warming operation of the heat pump type air conditioner; an
outdoor heat exchanger outlet valve 64' installed at the outlet
side refrigerant path of the outdoor heat exchanger 60; an outdoor
heat exchanger bypassing valve 65' opening and shutting the outdoor
heat exchanger bypassing path; an outdoor heat exchanger connection
path 66' connecting the outdoor heat exchanger bypassing path 63'
and the inlet side refrigerant path; an outdoor heat exchanger
inlet valve 67' installed at the inlet side refrigerant path of the
outdoor heat exchanger 60.
[0167] An outdoor expansion valve 59' is installed at the outdoor
heat exchanger bypassing path 63' with the co-generation according
to an embodiment of the present invention.
[0168] The outdoor heat exchanger bypassing apparatus 62' includes
a check valve 69 breaking the current of the refrigerant to the
inlet side refrigerant path side for streaming the refrigerant
flown from the indoor machine I to the outdoor heat exchanger
bypassing path 63 during the air-warming operation of the heat pump
type air conditioner.
[0169] The co-generation, as the co-generation illustrated in FIGS.
2 to 4, shuts the outdoor heat exchanger bypassing valve 65' as
well as opening the outdoor heat exchanger outlet valve 64' and the
outdoor heat exchanger inlet valve 67' in case of passing the
refrigerant through the outdoor heat exchanger 60, and opens the
outdoor heat exchanger bypassing valve 65' as well as shutting the
outdoor heat exchanger outlet valve 64' and the outdoor heat
exchanger inlet valve in case of not passing the refrigerant
through the outdoor heat exchanger 60 as the co-generation
illustrated in FIGS. 5 to 6.
[0170] As the other composition and operation excepting the outdoor
heat exchanger bypassing apparatus 62' of the co-generation
according to the present invention are the same or similar to the
co-generation according to an embodiment of the present invention,
the same referential marks are used, and the detailed description
on it is omitted.
[0171] FIG. 8 is a block diagram of another embodiment of the
co-generation according to the present invention.
[0172] The supply heat exchanger 68' of the co-generation according
to the present embodiment is installed in the inside of the outdoor
machine O, and the same referential marks are used as other
compositions are the same or similar to the co-generation according
to an embodiment of the present invention, and the detailed
description on it is omitted.
[0173] A part of the heat transfer path 170 connected with the
supply heat exchanger 68' is arranged as passing through the
outdoor machine O.
[0174] On the other hand, the present invention isn't limited to
the above-mentioned embodiment, and it is possible to be comprised
with the water boil heat exchanger 70, the water boil heat
exchanger bypassing apparatus, the supply heat exchanger 68, and
the supply heat exchanger bypassing apparatus 200 without the waste
heat recovery heat exchanger 160 and the waste heat recovery heat
exchanger bypassing apparatus 190, and it is possible for the
engine unit EN and the heat radiant unit EX to be composed in a
single composition, and various embodiments are possible in the
scope the present invention is included.
[0175] Reference will now be made in detail as for the effects of
the co-generation according to the present invention configured as
above.
[0176] The c-generation of the present invention has some
advantages in that the water boiling capacity is maximized as the
heat recovered from the drive source such as an engine and etc is
used for water boiling and the heat of the refrigerant recovered
while the refrigerant is condensed at the supply heat exchanger,
and the consumption electricity required for operating the air
conditioner is reduced as the condensing pressure of the
refrigerant at the supply heat exchanger is descended.
[0177] Further, the co-generation of the present invention has an
advantage in that the water boiling capacity is maximized as it is
possible for the refrigerant to be evaporated only at the outer
heat exchanger and not to pass the supply heat exchanger when the
air conditioner is under the air-warming mode and has a water
boiling request.
[0178] Furthermore, the co-generation of the present invention has
an advantage in that the frosting occurred when the refrigerant is
evaporated at the outdoor heat exchanger and the decreasing of the
air warming capacity caused by the frosting are prevented as it is
possible for the refrigerant for the refrigerant to be evaporated
only at the supply heat exchanger and no to pass the outdoor heat
exchanger when the air conditioner is under the air-warming mode
and has a water boiling request.
[0179] Moreover, the co-generation of the present invention has an
advantage in that the consumption electricity required for
operating the air conditioner is reduced as the heat recovered from
the drive sources such as the engine and etc is used for
evaporating the refrigerant at the supply heat exchanger and so as
to increase the evaporation pressure when the air conditioner is
under the air warming mode and doesn't have a water boiling
request.
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