U.S. patent application number 11/785067 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 | 20080022708 11/785067 |
Document ID | / |
Family ID | 38694800 |
Filed Date | 2008-01-31 |
United States Patent
Application |
20080022708 |
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 comprising an electric generator, an engine, a waste heat
recovery heat exchanger where the waste heat of the engine is
recovered, a water boil heat exchanger connected with the waste
heat recovery heat exchanger and the heat transfer path, a hot
water storage tank connected with the water boil heat exchanger and
the water circulation path, a water boil heat exchanger bypassing
path formed at the water circulation path, a water boil heat
exchanger bypassing valve installed at the water boil heat
exchanger bypassing path. The co-generation of the present
invention has some advantages in that the entire length of the
exhaust pipe and the installing costs are reduced as the numbers of
the long pipes are reduced compared with the case that the water
boil heat exchanger and the water boil heat exchanger bypassing
valve are installed at the outside of the engine unit as all of the
electric generator, engine, the waste heat recovery heat exchanger,
the water boil heat exchanger, the water heat exchanger bypassing
path, and the water boil heat exchanger bypassing valve are
installed at the engine unit.
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: |
38694800 |
Appl. No.: |
11/785067 |
Filed: |
April 13, 2007 |
Current U.S.
Class: |
62/238.7 ;
60/616; 62/115; 62/404; 62/430 |
Current CPC
Class: |
F25B 2313/0254 20130101;
F25B 13/00 20130101; F25B 2400/24 20130101; Y02A 30/274 20180101;
Y02E 20/14 20130101; F25B 27/02 20130101; Y02P 80/15 20151101 |
Class at
Publication: |
62/238.7 ;
60/616; 62/115; 62/404; 62/430 |
International
Class: |
F25B 27/02 20060101
F25B027/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 27, 2006 |
KR |
10-2006-0070794 |
Claims
1. A co-generation comprising: an electric generator; an engine
operating the electric generator; a waste heat recovery heat
exchanger recovering the exhaust heat of the engine; a water boil
heat exchanger boiling water; a hot water storage tank connected
with the water boil heat exchanger and the water circulation path;
a water supply path connected with the water circulation path; a
water boil heat exchanger bypassing path formed at the water
circulation path; a water boil heat exchanger bypassing valve
controlling the water boil heat exchanger bypassing path; an air
conditioner air conditioning the 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, the water boil heat exchanger, and the supply heat
exchanger, wherein all of the engine, the electric generator, the
waste heat recovery heat exchanger, water boil heat exchanger, and
the water boil heat exchanger bypassing path, and the water boil
heat exchanger bypassing valve are installed at the engine
unit.
2. The co-generation according to claim 1, wherein the engine unit
is installed underground of the construction where the
co-generation is installed.
3. The co-generation according to claim 2, wherein the hot water
storage tank is installed underground of the construction.
4. The co-generation according to claim 1, wherein the water
circulation path is connected with the water supply path.
5. The co-generation according to claim 1, wherein the
co-generation further comprises: a radiant heat exchanger connected
with the heat transfer path for radiating heat to outside; a water
boil/radiant heat exchanger bypassing path and a water boil/radiant
heat exchanger bypassing valve formed at the heat transfer path; a
radiant heat exchanger bypassing path and radiant heat exchanger
bypassing valve formed at the heat transfer path; a supply heat
exchanger bypassing path and a supply heat exchanger bypassing
valve formed at the heat transfer path.
6. The co-generation according to claim 5, wherein all of the
radiant heat exchanger, the radiant heat exchanger bypassing path,
the radiant heat exchanger bypassing valve, the supply heat
exchanger bypassing path, and the supply heat exchanger bypassing
valve are installed at the heat exhaust unit.
7. The co-generation according to claim 6, wherein the heat exhaust
unit is installed around the air conditioner.
8. The co-generation according to claim 6, wherein the heat
transfer path is installed as long from the engine unit to the heat
exhaust unit and the supply heat exchanger.
9. The co-generation according to claim 5, wherein the water
boil/radiant heat exchanger bypassing path is installed as long
from the engine unit to the heat exhaust unit.
10. The co-generation according to claim 5, wherein the water
boil/radiant heat exchanger bypassing valve is installed at the
engine unit.
11. The co-generation according to claim 1, wherein the air
conditioner is a heat pump type air conditioner composed of an
outdoor machine installed in the outside including a compressor, a
4-way valve, an outdoor heat exchanger and a outdoor expansion, and
an indoor machine installed in the inside including an indoor heat
exchanger and an expansion apparatus.
12. The co-generation according to claim 11, wherein the supply
heat exchanger is installed at in the inside of the outdoor
machine.
13. The co-generation according to claim 11, wherein the heat pump
type air conditioner further comprises the outdoor expansion valve
bypassing path bypassing the refrigerant through the outdoor
expansion valve.
14. The co-generation according to claim 13, wherein a check valve
for steaming the refrigerant into the outdoor expansion valve
without passing through the outdoor expansion valve bypassing path
during the air-heating operation is installed at the outdoor
expansion valve bypassing path of the heat pump type air
conditioner.
15. The co-generation according to claim 13, wherein the supply
heat exchanger is installed on the refrigerant path between the
outdoor expansion valve bypassing path and the outdoor heat
exchanger.
16. an electric generator; an engine operating the electric
generator; a waste heat recovery heat exchanger recovering the
exhaust heat of the engine; a water boil heat exchanger boiling
water; an outdoor machine includes a compressor, a 4-way valve, an
outdoor heat exchanger, and an outdoor expansion valve, and having
an outdoor expansion valve bypassing path bypassing the refrigerant
through the outdoor expansion valve; an indoor machine including
the indoor heat exchanger and the indoor expansion valve; a supply
heat exchanger installed on the refrigerant path between the
outdoor expansion valve bypassing path and the outdoor heat
exchanger; and a heat transfer path connecting the waste heat
recovery heat exchanger, the water boil heat exchanger, and the
supply heat exchanger.
17. The co-generation according to claim 16, wherein a check valve
streaming the refrigerant into the outdoor expansion valve without
passing through the outdoor expansion valve bypassing path during
the air-heating operation is installed at the outdoor expansion
valve bypassing path.
18. The co-generation according to claim 16, wherein all of the
electric generator, engine, waste heat recovery heat exchanger, and
the water boil heat exchanger are installed at the engine unit.
19. The co-generation according to claim 16, wherein the supply
heat exchanger is installed in the inside of the outdoor
machine.
20. A co-generation comprising: an electric generator; an engine
operating the electric generator; a waste heat recovery heat
exchanger recovering the exhaust heat of the engine; a water boil
heat exchanger boiling water; a hot water storage tank connected
with the water boil heat exchanger; a water supply path connected
with the water circulation path; a water boil heat exchanger
bypassing path formed at the water circulation path; a water boil
heat exchanger bypassing valve controlling the water boil heat
exchanger bypassing path; 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, a radiant
heat exchanger, and a supply heat exchanger; a water boil/radiant
heat exchanger bypassing path formed at the heat transfer path and
a water boil/radiant heat exchanger bypassing valve; a radiant heat
exchanger bypassing path and a radiant heat exchanger bypassing
valve formed at the heat transfer path; and a supply heat exchanger
bypassing path and a supply heat exchanger bypassing valve formed
at the heat transfer path, wherein the engine unit and the hot
water storage tank are installed underground, and all of the
radiant heat exchanger, radiant heat exchanger bypassing path,
radiant heat exchanger bypassing valve, supply heat exchanger
bypassing path, and the supply heat exchanger bypassing valve are
installed at the heat exhaust unit.
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 that both of a water boiling heat
exchanger and an engine are installed at an engine unit.
[0003] 2. Description of the Conventional Art
[0004] FIG. 1 is a block diagram of a co-generation according to
the conventional art.
[0005] The conventional go-generation comprises an engine unit EN
that an electric generator 2 and an engine 10 are installed
therein, and a heat exhaust unit EX that a water boil heat
exchanger 30 and a radiant heat exchanger 32 are installed therein
as illustrated in FIG. 1.
[0006] The engine unit EN is installed underground.
[0007] The electricity generated in the electric generator 2 is
supplied to the various home illuminants or home appliances such as
heat pump type air conditioner 4.
[0008] Here, the heat pump type air conditioner 4 comprises a
compressor 5, a 4-way valve 6, an indoor heat exchanger 7, an
expansion apparatus 8, and an outdoor heat exchanger 9.
[0009] The heat pump type air conditioner 4 takes heat of the
indoor air as the outdoor heat exchanger 9 is functioning as a
condenser, and the indoor heat exchanger 7 is functioning as an
evaporator, as the refrigerant compressed at the compressor 5 is
circulated to the compressor 5 after passing through the 4-way
valve 6, the outdoor heat exchanger 9, the expansion apparatus 8,
the indoor heat exchanger 7, and the 4-way valve 6 in regular
sequence during the air heating operation.
[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, outdoor heat exchanger 9 operating as a evaporator and
the indoor heat exchanger 7 operating as a condenser warm the
indoor air.
[0011] A waste heat recovery heat exchanger 20 recovering the waste
heat generated the engine 10 is installed at the engine unit
EN.
[0012] The waste heat recovery heat exchanger 20 includes an
exhaust gas heat exchanger 22 taking the heat of the exhaust gas
exhausted from the engine 10, and a coolant heat exchanger 24
taking the heat of the coolant which refrigerates the engine
10.
[0013] The exhaust gas heat exchanger 22 and the coolant heat
exchanger 24 are connected with the water boil heat exchanger 30
and the heat supplying line 25, and the waste heat of the engine 10
is transferred to the water boil heat exchanger 30 through the heat
supply line 25.
[0014] A heat medium pump 26 circulating the heat medium such as
the anti freezing solution through the exhaust gas heat exchanger
22, the coolant heat exchanger 24 and the water boil heat exchanger
30 is installed at the heat supplying line 25.
[0015] The heat exhaust unit EX is installed at the outdoor.
[0016] A heat exhaust fan 34 sending the outdoor air into the
radiant heat exchanger 32 is installed at the heat exhaust unit
EX.
[0017] A water circulation path 36 connecting the radiant heat
exchanger 32 and the hot water storage tank 36 is installed at the
water boil heat exchanger 30.
[0018] The hot water storage tank 36 is normally installed
underground.
[0019] The water supply path 38 supplying cold water to the water
circulation path 36 is installed at the water circulation path
36.
[0020] At the conventional co-generation configured as above, the
waste heat is recovered at the waste heat recovery heat exchanger
20 during the operation of the engine, the heat medium of the heat
supply line 25 receives heat while passing the waste heat recovery
heat exchanger 20, is transferred to outdoor from underground, and
is circulated to the waste heat recovery heat exchanger 20 of the
engine unit installed underground after heating the water boil heat
exchanger 30 of the heat exhaust unit EX installed outdoor during
the operation of the engine.
[0021] Further, the hot water of the hot water storage tank 36
installed underground supplied to the water boil heat exchanger 30
of the heat exhaust unit EX installed outdoor through the water
circulation path 36, the cold water of the water supply path 38
connected with underground is supplied to the water heat exchanger
30 of the heat exhaust unit EX through the water circulation path
38 positioned in the inside of the heat exhaust unit EX as
transferred to outdoor, and the cold water is supplied to the hot
water storage tank 40 after boiled while passing the water boil
heat exchanger 30.
[0022] The co-generation according to the conventional art has a
disadvantage that the efficiency is not maximized as the waste heat
of the engine 10 is not used for the heat pump type air conditioner
4, but only used for the water boiling.
[0023] Furthermore, the installing of pipes is difficult and the
costs get bigger with arranging at least five of long pipes as the
two parts 25A and 25B of the long heat transfer line 25 is arranged
between the underground where the engine unit is installed EN and
the outdoor where the heat exhaust unit EX, the two parts 36A and
36B of the long water circulation path 36 is installed between the
underground where the hot water storage tank 40 is installed and
the outdoor where the heat exhaust unit EX, and the long water
supply path 38 is arranged from the underground to outdoor where
the heat exhaust unit EX is installed.
SUMMARY OF THE INVENTION
[0024] The present invention is contrived to overcome the
above-mentioned conventional problems, and an object of the present
invention is to provide a co-generation minimizing the long pipes
that is, the connecting pipes and install costs as positioning the
parts of the water boil heat exchanger and etc properly.
[0025] Another object of the present invention is to provide a
co-generation improving the air-cooling capacity.
[0026] The co-generation according to the present invention to
achieve the above-mentioned object comprises an electric generator;
an engine operating the electric generator; a waste heat recovery
heat exchanger recovering the waste heat of the engine; a water
boil heat exchanger boiling water; a hot water storage tank
connected with the water boil heat exchanger and the water
circulation path; a water supply path connected with the water
circulation path; a water boil heat exchanger bypassing path formed
at the water circulation path; a water heat exchanger bypassing
valve controlling the water boil heat exchanger bypassing path; an
air conditioner air conditioning the 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, the water boil heat exchanger, and the supply heat
exchanger; and the all the engine, the electric generator, the
waste heat recovery heat exchanger, the water boil heat exchanger,
the water boil heat exchanger bypassing path, and the water boil
heat exchanger bypassing valve are installed at the engine
unit.
[0027] The engine unit is installed underground of the structure at
which the co-generation is installed.
[0028] The hot water storage tank is installed underground of the
above building.
[0029] A water supply path is connected with the water circulation
path.
[0030] The co-generation further comprises a radiant heat exchanger
connected with the heat transfer path for radiating heat to
outside; a water boil/radiant heat exchanger bypassing path and a
water boil/radiant heat exchanger bypassing valve formed at the
heat transfer path; a radiant heat exchanger bypassing path and a
radiant heat exchanger bypassing valve formed at the heat transfer
path; and a supply heat exchanger bypassing path and a supply heat
exchanger bypassing valve formed at the heat transfer path.
[0031] All of the radiant heat exchanger, the radiant heat
exchanger bypassing path, the radiant heat exchanger bypassing
valve, the supply heat exchanger bypassing path, and the supply
heat exchanger bypassing valve are installed at the heat exhaust
unit.
[0032] The heat exhaust unit is installed near the air
conditioner.
[0033] The heat transfer path is installed as long through the
engine unit, the heat exhaust unit, and the supply heat
exchanger.
[0034] The water boil/radiant heat exchanger bypassing path is
installed as long through the engine unit and exhaust unit.
[0035] The water boil/radiant heat exchanger bypassing valve is
installed at the engine unit.
[0036] The air conditioner is composed of a heat pump type air
conditioner including a compressor, a 4-way valve, an outdoor heat
exchanger, an outdoor expansion valve, an outdoor machine installed
outdoor, and an indoor machine including an indoor heat exchanger
and an indoor expansion valve.
[0037] The supply heat exchanger is installed at the inside of the
outdoor machine.
[0038] The heat pump type air conditioner further comprises an
outdoor expansion valve bypass path bypassing the refrigerant
through the outdoor expansion valve.
[0039] A check valve is installed at the outdoor expansion valve
bypass path of the heat pump type air conditioner for streaming the
refrigerant to the outdoor expansion valve without passing through
the outdoor expansion bypass path during the air heating
operation.
[0040] The supply heat exchanger is installed on the refrigerant
path between the outdoor expansion valve bypass path and the
outdoor heat exchanger.
[0041] The co-generation according to the present invention
comprises an electric generator; an engine operating the electric
generator; a waste heat recovery heat exchanger recovering the
waste heat of the engine; a water boil heat exchanger boiling
water; an outdoor machine including a compressor, a 4-way valve, an
outdoor heat exchanger, and an outdoor expansion valve, and has an
outdoor expansion valve bypassing path bypassing refrigerant
through the outdoor expansion valve; an indoor machine including
the indoor heat exchanger and the indoor expansion valve; a supply
heat exchanger installed on the refrigerant path between the
outdoor expansion valve bypassing path and the outdoor heat
exchanger; and a heat transfer path connecting the waste heat
recovery heat exchanger, a water boil heat exchanger, and a supply
heat exchanger.
[0042] A check valve for streaming refrigerant into the outdoor
expansion valve without passing through the outdoor expansion valve
bypassing path during the air heating operation is installed at the
outdoor expansion valve bypassing path.
[0043] All of the electric generator, the engine, the waste heat
recovery heat exchanger, and the water boil heat exchanger are
installed at the engine unit.
[0044] The supply heat exchanger is installed in the inside of the
outdoor machine.
[0045] The co-generation according to the present invention
comprises an electric generator; an engine operating the electric
generator; a waste heat recovery heat exchanger recovering the
waste heat of the engine; a water boil heat exchanger boiling
water; a hot water storage tank connected with the water boil heat
exchanger and the water circulation path; a water supply path
connected with the water circulation path; a water boil heat
exchanger bypass path formed on the water circulation path; a water
boil heat exchanger bypassing valve controlling the water boil heat
exchanger bypassing path; 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 and a water boil/radiant heat
exchanger bypassing valve formed on the heat transfer path; a
radiant heat exchanger bypassing path and a radiant heat exchanger
bypassing valve formed on the heat transfer path; and a supply heat
exchanger bypassing path and a supply heat exchanger bypassing
valve formed on the heat transfer path; all the engine, the
electric generator, the waste heat recovery heat exchanger, the
water boil heat exchanger, the water boil heat exchanger bypassing
path, and the water boil heat exchanger bypassing valve are
installed at the engine unit, the engine unit and the hot water
storage are installed underground, and all the radiant heat
exchanger, the radiant heat exchanger bypassing path, a radiant
heat exchanger bypassing valve, the supply heat exchanger bypassing
path, and the supply heat exchanger bypassing valve are installed
at the heat exhaust unit.
[0046] The co-generation according to the present invention
configured as above has an advantage in that the entire pipe length
becomes shorter and the installing costs become reduced as the
number of the long pipes becomes less than the case of installing
the water boil heat exchanger and the water boil bypassing path at
the outside of the engine unit, as installing the engine, the
electric generator, the waste heat recovery heat exchanger, the
water boil heat exchanger, the water boil heat exchanger bypassing
path, and the water boil heat exchanger are installed at the engine
unit altogether.
[0047] Moreover, the co-generation of the present invention has
some advantages in that the refrigerant becomes well super cooled
while passing through the supply heat exchanger, the shortage of
the refrigerant is prevented, and the air warming capacity isn't
reduced as the refrigerant condensed at the outdoor heat exchanger
is condensed at the supply heat exchanger.
BRIEF DESCRIPTION OF THE DRAWING
[0048] FIG. 1 is a block diagram of the co-generation according to
the conventional art,
[0049] 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,
[0050] 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,
[0051] 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,
[0052] 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,
[0053] 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,
[0054] FIG. 7 is a block diagram illustrating the air conditioner
of another embodiment of the co-generation according to the present
invention operating for air-cooling under the not water boil
mode,
[0055] FIG. 8 is a block diagram illustrating the air conditioner
of another embodiment of the co-generation according to the present
invention operating for air-cooling under the not water boil
mode,
[0056] FIG. 9 is a block diagram illustrating the condition that
the air conditioner of another 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,
[0057] FIG. 10 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,
[0058] FIG. 11 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,
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0059] 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.
[0060] 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.
[0061] 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, an operation element 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 operation element 120 as illustrated in FIGS. 2 to 6.
[0062] 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.
[0063] As the heat pump type air conditioner is composed of an
outdoor machinery O and an indoor machinery I, it is possible that
an indoor machinery I is connected with an outdoor machinery O,
also possible that plural indoor machineries I are connected in a
row with an outdoor machinery O, also possible that plural outdoor
machineries 0 are connected in a row each other, and also possible
that plural indoor machineries I are connected in a row each
other.
[0064] 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 flowing path.
[0065] 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.
[0066] 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 heating
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.
[0067] An indoor fan 57 sending indoor air to the indoor heat
exchanger 56 is installed beside the indoor heat exchanger 56.
[0068] The expansion apparatus 58 and 59 are described as limited
to be composed of a vessel or a linear expansion valve.
[0069] 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 heating operation as installed at the outdoor machinery
O.
[0070] An outdoor fan 61 sending the outdoor air to the outdoor
heat exchanger 60 is installed beside the outdoor heat exchanger
60.
[0071] The compressor 52, 4-way valve 54, outdoor expansion valve
59, and the outdoor heat exchanger 60 are installed at the outdoor
machinery O.
[0072] The indoor heat exchanger 56 and the indoor expansion valve
58 are installed at the indoor machinery I.
[0073] 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.
[0074] 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.
[0075] An end part of the outdoor heat exchanger bypassing
apparatus 62 is connected with the refrigerant path connected with
the inlet side of the outdoor heat exchanger 60, and the other end
part is connected with the refrigerant path connected with the
outlet side of the outdoor heat exchanger during the air-cooling
operation or the air heating operation.
[0076] An outdoor expansion valve 59 is installed at the outdoor
heat exchanger bypassing path 63.
[0077] An outdoor expansion valve bypass path bypassing the
refrigerant flown into the outdoor heat exchanger bypassing path 63
during the air-cooling operation of the heat pump type air
conditioner 50 through the outdoor expansion valve 59 is installed
at the outdoor heat exchanger bypassing path 63.
[0078] A check valve 64B passing the refrigerant during the
air-cooling operation of the heat pump type air conditioner 50, and
passing the refrigerant through the outdoor expansion valve 59 as
blocking during the air heating operation of the heat pump type air
conditioner 50 is installed at the outdoor expansion valve
bypassing path 66A.
[0079] An outdoor heat exchanger bypassing path opening and
shutting valve 64C opening and shutting the outdoor heat exchanger
bypassing path 63 is installed at the outdoor heat exchanger
bypassing path 62.
[0080] The outdoor heat exchanger bypassing path 62 includes an
outdoor heat exchanger opening and shutting valve 65A installed at
the refrigerant path connected with outlet side of the outdoor heat
exchanger 60 during the air heating operation.
[0081] The outdoor heat exchanger bypassing apparatus 62 includes a
connection path connecting the refrigerant path connected with the
inlet side of the outdoor heat exchanger 60 and the outdoor heat
exchanger bypassing path 62 during the air heating operation, and
the connection path opening and shutting valve 66B opening and
shutting the connection path 66A.
[0082] A check valve 65B preventing the streaming of refrigerant
into the outdoor heat exchanger 60 without passing through the
outdoor expansion valve 59 is installed at the refrigerant path
connected with the inlet side of the outdoor heat exchanger 60 of
the outdoor heat exchanger bypassing apparatus 62 during the air
heating operation of the heat pump type air conditioner.
[0083] Here, the outdoor heat exchanger bypassing apparatus 62, as
illustrated in FIGS. 2 and 3, opens the outdoor heat exchanger
bypassing path opening and shutting valve 64C as well as shutting
the outdoor heat exchanger opening and shutting valve 65A during
the air-cooling operation, shutting the connection path opening and
shutting valve 66B, and the refrigerant bypasses the outdoor
expansion valve 59 as well as by passing the outdoor heat exchanger
60.
[0084] The outdoor heat exchanger bypassing apparatus 62, as
illustrated in FIG. 4, shuts the outdoor heat exchanger bypassing
path opening and shutting valve 64C as well as opening the outdoor
heat exchanger opening and shutting valve 65A during the outdoor
fan control air heating operation, opening the connection path
opening and shutting valve 66B, and the refrigerant passes through
the outdoor heat exchanger 60 after passing through the outdoor
expansion valve 59.
[0085] The outdoor heat exchanger bypassing apparatus 62, as
illustrated FIGS. 5 and 6, opening the outdoor heat exchanger
bypassing path opening and shutting valve 64C as well as shutting
the outdoor heat exchanger opening and shutting valve 65A during
the lo-pressure control air heating operation and maximum supply
air heating operation, shutting the connection path opening and
shutting valve 66B, and the refrigerant bypasses the outdoor heat
exchanger 60 after passing through the outdoor expansion valve
59.
[0086] A supply heat exchanger 68 transferring the waste heat
recovered at the waste heat recovery heat exchanger 130 installed
at the engine unit to the heat pump type air conditioner 50 as a
refrigerant, and transferring heat from the refrigerant of the heat
pump type air conditioner 50 to the water boil heat exchanger 70
installed at the engine unit if necessary.
[0087] As the supply heat exchanger 68 is installed on the
refrigerant path of the heat pump type air conditioner 50, it is
installed on the refrigerant path between the 4-way valve 54 and
the outdoor heat exchanger 60.
[0088] That is, it is possible for the supply heat exchanger 60 to
be functioning as a condenser condensing the refrigerant during the
air-cooling operation of the heat pump type air conditioner 50, and
to be functioning as a evaporator evaporating the refrigerant
during the air heating operation of the heat pump type air
conditioner 50.
[0089] The engine unit EN is installed underground of the
construction where the co-generation is installed.
[0090] A water boil heat exchanger 70 installed for water boiling;
an electric generator 110 generating electricity; an engine 120
operating the electric generator and generating heat; and a waste
heat recovery heat exchanger 130 recovering the waste heat of the
engine 120 are installed at the engine unit EN.
[0091] A water boil unit 78 boiling cold water or hot water after
supplying to the water boil heat exchanger 70 is installed at the
water boil heat exchanger 70.
[0092] The water boil unit 78 includes a hot water storage tank 80
containing water, and a water circulation path 81 connecting the
hot water storage tank 80 and the water boil heat exchanger 70.
[0093] The hot water storage tank 80 is installed underground of
the construction where the co-generation is installed.
[0094] The hot water storage tank 80, a kind of a heat storage tank
storing the heat recovered a the water boil heat exchanger 70, and
the water circulation path 81 circulates the water in the hot water
storage tank 80 into the inside of the hot water storage tank 80
after supplied to the water heat exchanger 70 and passing through
the water boil heat exchanger 70.
[0095] The water circulation path 81 is not extended to outdoor as
the water boil heat exchanger 70 and the heat exhaust unit EX are
installed at the engine unit EN.
[0096] The hot water storage tank water supply apparatus 82
supplying the water in the hot water storage tank 80 to the water
circulation unit 82.
[0097] The hot water storage tank water supply apparatus 82 is
composed of a hot water storage tank pump installed at the water
circulation path 81 for pumping the water in the hot water storage
tank 80 to be circulated to the hot water storage tank 80 after
passing through the water boil heat exchanger.
[0098] A water supply path 83 is installed at the water circulation
path 81 to supply water from outside to the water circulation path
82.
[0099] It is possible for the water supply path 83 to supply water
of the water service to the water circulation path 81 as connected
with the water service directly, or to supply the water in the
water supply tank to the water circulation path 81 as connected
with a separate water supply tank.
[0100] Here, the water boil heat exchanger 70 of the water supply
path 83 is not installed at the exhaust unit, but installed at the
engine unit, and is not extended long to out of doors as the water
circulation path 81 is only installed underground.
[0101] A water temperature sensor 84 gauging the temperature of the
water supplied to the water circulation path 82 from the hot water
storage tank 80, a check valve 85 preventing the flowing backward
of the water in the water circulation path 81 through the water
supply path 83, and a water supply pump, a water supply apparatus
86, pumping water to the water supply path 83 are installed at the
water supply path 83.
[0102] On the other hand, a water boil heat exchanger bypassing
path 87 bypassing the water supplied from the hot water storage
tank 80 to the water circulation path 81 through the water boil
heat exchanger 130.
[0103] The water boiling unit 78 has a water heat exchanger
bypassing valve 88 deciding the bypassing of the water supplied
from the hot water storage tank 80 through the water boil heat
exchanger is installed at the diverging point of the water
circulation path 87 and the water boil heat exchanger bypassing
path 87.
[0104] A check valve 89 is installed at the part between the hot
water storage pump 82 and the water boil heat exchanger bypassing
valve of the water circulation path 81.
[0105] The water boil heat exchanger bypassing path 87, the water
boil heat exchanger bypassing valve 88, and the check valve 85 and
89 are installed at the engine unit EN, and a part of the water
circulation unit 81 and a part of the water supply path 83 are
installed at the inside of the engine unit EN of the water boiling
unit 78.
[0106] The electric generator 110 supplies electricity to the heat
pump type air conditioners 50 or the various electric instruments
such as the various illuminants, as 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 shaft of the operation element 120.
[0107] The electric generator 110 supplies the electricity
generated through a power line 111 as connected with the heat pump
type air conditioner and etc by power the line 111.
[0108] The engine 120 is composed of a common engine operated as
using the fossil fuel such as gas or petroleum and etc, and using
fuel cells are also possible.
[0109] A fuel inlet 121 into which the fuel such as gas, petroleum
and etc is poured, an intake 122 inhaling the outside air to the
engine 120, and an exhaust pipe 123 through which the exhaust gas
exhausted from the engine 120 passes are installed at the engine
120.
[0110] The waste heat recovery heat exchanger 130 is composed of a
coolant heat exchanger 132 recovering the coolant heat of the
engine 120 as connected with the engine through the coolant line
124, and a exhaust gas heat exchanger 134 installed on the exhaust
pipe 123 for recovering of the exhaust gas heat exhausted from the
engine 120.
[0111] A coolant circulation pump 125 for circulating the coolant
through the engine 120 and the coolant heat exchanger 132 is
installed at the engine 120 or the coolant line 124.
[0112] The heat exhaust unit EX is installed around the outdoor
machine O.
[0113] A radiant heat exchanger 160 radiating a portion or the
whole of the heat recovered at the waste heat recovery heat
exchanger 130 to outside in accordance with its necessity is
installed at the heat exhaust unit EX.
[0114] A heat radiant fan 162 sending the outside air to the
radiant heat exchanger 160 is installed beside the radiant heat
exchanger 160.
[0115] On the other hand, the co-generation includes a heat
transfer apparatus 150 transferring heat of the waste heat recovery
heat exchanger 130 to the water boil heat exchanger 70, the waste
heat recovery heat exchanger 160, and the supply heat exchanger
68.
[0116] Here, it is possible for the heat transfer apparatus 150 to
transfer the heat of the waste heat recovery heat exchanger 130
only to the water boil heat exchanger 70, the radiant heat
exchanger 160, and the supply heat exchanger 68, or to transfer the
heat of the waste heat recovery heat exchanger 130 to the water
boil heat exchanger 70, the radiant heat exchanger 160, and the
supply heat exchanger 68, and to transfer the heat of the supply
heat exchanger 68 to the water boil heat exchanger 70.
[0117] 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 radiant heat exchanger
160, and the supply heat exchanger, and the heat of the supply heat
exchanger 68 is transferred to the water boil heat exchanger 70, if
necessary.
[0118] 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.
[0119] On the other hand, as the heat transfer path 170 is
positioned as long from the underground where the engine unit EN is
installed to the out of door where the heat exhaust unit EX 160 and
the outdoor machine O are installed, and especially, the exhaust
pipes 170A and 170B arranged between the engine unit EN and the
heat exhaust unit EX are positioned as long from underground to
outside.
[0120] 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.
[0121] It is possible for the heat medium circulation pump 172 to
be installed at the engine unit EN and at the heat exhaust unit
EX.
[0122] 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.
[0123] 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.
[0124] 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.
[0125] 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.
[0126] 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.
[0127] 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.
[0128] 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.
[0129] Here, as the water boil/radiant heat exchanger bypassing
path 182 of the c-generation is not installed at the water boil
heat exchanger 70 or the heat exhaust unit EX, but installed at the
engine unit EN, it is extended as long from underground where the
engine unit EN is installed to outside where the heat exhaust unit
EX is installed.
[0130] The water boil/radiant heat exchanger bypassing valve 184 of
the co-generation is installed at the engine unit EN.
[0131] 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 of the co-generation are installed at the heat exhaust unit
EX.
[0132] 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
opening and shutting valve 65A, the outdoor heat exchanger
bypassing path opening and shutting valve 64C, and the connection
path opening and shutting valve 66B in accordance with the
air-cooling/air warming and water boiling of the heat pump type air
conditioner 50.
[0133] 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.
[0134] The various kinds of sensors perceiving the temperature or
the flux are installed at the co-generation.
[0135] The co-generation comprises 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.
[0136] The intake port temperature sensor 220, the coolant heat
exchanger outlet temperature sensor 222, the waste gas heat
exchanger outlet temperature sensor 224, and the exhaust pipe
temperature sensor 226 are installed at the inside of the engine
unit EN.
[0137] The co-generation comprises 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.
[0138] The No. 1 heat transfer path temperature sensor 230 is
installed at the radiant heat unit EX.
[0139] 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.
[0140] Reference will now be made in detail as for the operation of
the present invention configured as above.
[0141] 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.
[0142] The heat of the exhaust 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 exhaust
gas heat exchanger 134 during the operation of the engine 120.
[0143] The co-generation controls the bypassing of the refrigerant
through the outdoor heat exchanger 60 as well as operating the heat
pump type air conditioner 50 to be an air-cooling mode when the
heat pump type air-conditioner 50 is required of air-cooling and
water boiling, and controls the heat medium of the heat transfer
path 170 to be circulated through the heat exchanger the exhaust
gas 130, water boil heat exchanger 70, and the supply heat
exchanger 68.
[0144] The heat pump type air conditioner 50 controls the 4-way
valve 54 to be an air-cooling mode as well as operating the
compressor 52, opens the outdoor heat exchanger bypassing path
opening and shutting valve 64C as well as shutting the outdoor heat
exchanger opening and shutting valve 65A, and shuts the connection
path opening and shutting valve 66B.
[0145] 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 68 as passing through the 4-way valve 54,
condensed as taken the heat away from the supply heat exchanger 68
when it passes through the supply heat exchanger 68, and bypasses
the outdoor heat exchanger 60 after that.
[0146] The refrigerant bypassed the outdoor heat exchanger 60 is
evaporated as transferred to the indoor heat exchanger 56 after
transferred to the indoor machinery I and expanded at the indoor
expansion valve 58, and after that, circulated to the compressor 52
through the 4-way valve 54 as transferred to the outdoor machinery
O.
[0147] That is, the refrigerant of the heat pump type air
conditioner is condensed at the supply heat exchanger 68, and
cooling the indoor air as evaporated at the indoor heat exchanger
56.
[0148] 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 exhaust gas 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.
[0149] 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.
[0150] 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 exhaust gas
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.
[0151] 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.
[0152] 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 exhaust gas
heat exchanger 130.
[0153] That is, the water boiling capacity of the water boil heat
exchanger 70 of the co-generation is improved as the refrigerant of
the heat pump type air conditioner 50 is condensed as the heat is
taken away from the heat medium while passing through the supply
heat exchanger, and as the heat of the exhaust gas of the exhaust
gas heat exchanger 230 and the heat of the supply heat exchanger 68
are transferred to the water boil heat exchanger through the heat
transfer path 170.
[0154] In the co-generation, the lower the temperature of the water
supplied to the water boil heat exchanger 70 from the water boiling
unit 78, the larger the amount of the heat transference of the
water boil heat exchanger 70, and the heat medium passed through
the water boil heat exchanger 70 recovers a lot of heat from the
refrigerant while passing through the supply heat exchanger 68, and
the consumption electricity of the compressor is reduced compared
with the same air-cooling capacity of the heat pump type air
conditioner 50.
[0155] 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 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 exhaust gas heat exchanger 130 and supply heat
exchanger 68.
[0156] 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, opens the outdoor heat exchanger bypassing path
opening and shutting valve 64C as well as shutting the outdoor heat
exchanger opening and shutting valve 65A, and shuts the connection
path opening and shutting valve.
[0157] 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 exhaust gas 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, and controls the radiant heat exchanger
bypassing valve 194 to be the radiant heat exchanger supply
mode.
[0158] 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
bypasses the outdoor heat exchanger 60.
[0159] The refrigerant bypassed the outdoor heat exchanger 60 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.
[0160] That is, the refrigerant of the heat pump type air
conditioner 50 is condensed at the supply heat exchanger 68 and
cools the indoor air as evaporated in the indoor heat exchanger
56.
[0161] As describing the flowing of heat medium of the heat
transfer path 170, illustrated In FIG. 3, the heat medium in the
heat transfer path 170 is boiled as receiving heat while passing
through the exhaust gas 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.
[0162] 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 exhaust gas heat exchanger 130.
[0163] That is, the water boiling capacity of the water boil heat
exchanger 70 of the co-generation is improved as the refrigerant of
the heat pump type air conditioner 50 is condensed as the heat of
it is taken away from the heat medium while passing through the
supply heat exchanger 68, and as the exhaust gas heat of the
exhaust gas heat exchanger 130 and the heat of the supply heat
exchanger 68 are transferred to the water boil heat exchanger 70
through the heat transfer path 170.
[0164] 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
exhaust gas 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 exhaust gas heat exchanger
130, water boil heat exchanger 70, and the supply heat exchanger
68.
[0165] 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 exhaust gas 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.
[0166] 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 exhaust gas heat exchanger 130 and the water
boil heat exchanger 70, as illustrated in FIG. 4.
[0167] The heat pump type air conditioner 50 controls the 4-way
valve to be the air-warming mode as well as operating the
compressor 52, shuts the outdoor heat exchanger bypassing path
opening and shutting valve 65C as well as opening the outdoor heat
exchanger opening and shutting valve 65A, and opens the connection
path opening and shutting valve 66B.
[0168] 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.
[0169] 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.
[0170] 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.
[0171] 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.
[0172] 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 exhaust gas 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.
[0173] 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.
[0174] 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 exhaust gas 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.
[0175] 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.
[0176] 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.
[0177] 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.
[0178] 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 exhaust gas heat exchanger
130, water boil heat exchanger 70, and the supply heat exchanger
68.
[0179] 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 opening the outdoor heat exchanger bypassing
valve 65 as well as shutting the outdoor heat exchanger bypassing
valve 64 and the connection path opening and shutting valve 67.
[0180] 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.
[0181] 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.
[0182] 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.
[0183] 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.
[0184] 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 exhaust gas 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.
[0185] 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.
[0186] 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 exhaust gas 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.
[0187] The heat medium flown into the water boil hea0t 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.
[0188] 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.
[0189] 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.
[0190] 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 exhaust gas 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.
[0191] 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.
[0192] 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.
[0193] 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.
[0194] 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.
[0195] 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.
[0196] 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 exhaust gas 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.
[0197] 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 exhaust gas heat exchanger 130, then, bypasses the water boil
heat exchanger 70 the radiant heat exchanger 160, and stream into
the supply heat exchanger 68.
[0198] 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
exhaust gas heat exchanger 130.
[0199] That is, the heat of the waste heat recovery heat exchanger
130 of the co-generation having the water boil function 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.
[0200] FIG. 7 is a block diagram illustrating the air conditioner
of another embodiment of the co-generation according to the present
invention operating for air-cooling under the not water boil mode,
FIG. 8 is a block diagram illustrating the air conditioner of
another embodiment of the co-generation according to the present
invention operating for air-cooling under the not water boil mode,
FIG. 9 is a block diagram illustrating the condition that the air
conditioner of another 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. 10 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. 11 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.
[0201] The supply heat exchanger 68 of the co-generation according
to the present invention is installed at the inside of the outdoor
machine O of the heat pump type air conditioner 50 as illustrated
in FIGS. 7 to 11.
[0202] The heat pump type air conditioner 50 further comprises an
outdoor heat exchanger bypassing apparatus 62' bypassing the
refrigerant through the outdoor heat exchanger 60.
[0203] The outdoor heat exchanger bypassing apparatus 62' includes
an outdoor heat exchanger bypassing path 63' that an end is
connected with the refrigerant path connected with the inlet side
of the outdoor heat exchanger 60 and the other end is connected
with the refrigerant path connected with the outlet side of the
outdoor heat exchanger 60 during the air-cooling and the air
heating operations.
[0204] An outdoor heat exchanger bypassing apparatus opening and
shutting valve 64A' opening and shutting the outdoor heat exchanger
bypassing path 63 is installed at the outdoor heat exchanger
bypassing path 63'. Further, the outdoor heat exchanger bypassing
apparatus 62' includes a refrigerant path connected with the inlet
side of the outdoor heat exchanger 60 and outdoor heat exchanger
opening and shutting valve 64B' and 64C' installed at the
refrigerant path connected with the outlet side.
[0205] In the heat pump type air conditioner 50, an outdoor
expansion valve 59' is installed on the refrigerant path connecting
the outdoor heat exchanger 60 and the outdoor expansion valve 59 of
the indoor machine I.
[0206] An outdoor expansion bypassing path 65A' bypassing the
through the outdoor expansion valve 59 during the air-cooling
operation, and a check valve 65' installed at the outdoor expansion
valve bypassing path 65A' for streaming the refrigerant to the
outdoor expansion valve 59' without passing through the outdoor
expansion valve bypassing path 64A' during the air heating
operation. The supply heat exchanger 68 is installed on the
refrigerant path between the outdoor expansion valve bypassing path
65A' and the outdoor heat exchanger 60.
[0207] Here, the heat pump type air conditioner 50, as illustrated
in FIGS. 7 to 8, shuts the outdoor heat exchanger bypassing path
opening and shutting valve 64A' as well as opening the outdoor heat
exchanger opening and shutting valve 64B' and 64C' during the
air-cooling operation, the refrigerant passes through the supply
heat exchanger 68' as well as passing through the outdoor heat
exchanger 60 and bypasses the outdoor expansion valve 59.
[0208] In case that the heat pump type air conditioner 50 is under
the air-cooling operation and has a water boiling request, the
super cooling isn't working well or the air-cooling capacity is
decreased by the lack of the refrigerant if the refrigerant is
condensed firstly at the supply heat exchanger and is condensed
again at the outdoor heat exchanger, however, in case that the
refrigerant is condensed again as while passing through the supply
heat exchanger 68' after condensed at the outdoor heat exchanger 60
as illustrated in FIG. 7, the supper cooling is well worked when
the temperature of the refrigerant passing through the supply heat
exchanger 68' is lower, the lack of the refrigerant is prevented,
and the decreasing of the air-cooling operation capacity is
prevented.
[0209] The heat pump type air conditioner 50 shuts the outdoor heat
exchanger bypassing path opening and shutting valve 64A' as well as
opening the outdoor heat exchanger opening and shutting valve 64B'
and 64C', and the refrigerant passes through the outdoor heat
exchanger 60 after passing through the expansion valve 59' and the
supply heat exchanger 68' during the outdoor fan control air
heating operation as illustrated in FIG. 9.
[0210] Furthermore, the heat pump type air conditioner 50 opens the
outdoor heat exchanger bypassing path opening and shutting valve
64A' as well as shutting the outdoor heat exchanger opening and
shutting valve 64B' and 64C', and the refrigerant bypasses the
outdoor heat exchanger after passing through the outdoor expansion
valve 59' and the supply heat exchanger 68' during the low-pressure
control air-heating operation and the maximum supply air-heating
operation as illustrated in FIGS. 10 and 11.
[0211] On the other hand, the present invention is not limited to
the above embodiment, and it is possible to be composed of the
water boil heat exchanger 70, the water boil heat exchanger
bypassing apparatus, the supply heat exchanger 68, and the supply
heat bypassing apparatus 200 without the radiant heat exchanger 160
and the radiant heat exchanger bypassing apparatus 190, for the
supply heat exchanger 68' to be installed on the refrigerant path
between the outdoor expansion valve bypassing path 65A' and the
outdoor heat exchanger 60 as located a the outside of the outdoor
machine O, and other various embodiments are possible in the
technical range including the present invention.
[0212] Reference will now be made in detail to the effects of the
co-generation of the present invention configured as above.
[0213] The co-generation of the present invention has some
advantages in that the entire length of the exhaust pipe and the
installing costs are reduced as the numbers of the long pipes are
reduced compared with the case that the water boil heat exchanger
and the water boil heat exchanger bypassing valve are installed at
the outside of the engine unit as all of the engine, the electric
generator, the waste heat recovery heat exchanger, the water boil
heat exchanger, the water heat exchanger bypassing path, and the
water boil heat exchanger bypassing valve are installed at the
engine unit.
[0214] Furthermore, the co-generation of the present invention has
some advantages in that the super cooling works well when the
refrigerant passes through the supply heat exchanger as the
refrigerant condensed at the outdoor heat exchanger is condensed
once more at the supply heat exchanger, the lack of the refrigerant
is prevented, and the reduction of the air-cooling capacity is
prevented during the air-cooling operation.
* * * * *