CN114183942A - Heat exchange system - Google Patents
Heat exchange system Download PDFInfo
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- CN114183942A CN114183942A CN202111507950.XA CN202111507950A CN114183942A CN 114183942 A CN114183942 A CN 114183942A CN 202111507950 A CN202111507950 A CN 202111507950A CN 114183942 A CN114183942 A CN 114183942A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Central Heating Systems (AREA)
Abstract
The application provides a heat exchange system, which comprises a compressor, a gas-liquid separator and a throttling structure, wherein the compressor is provided with an air suction port and an air exhaust port; the throttling structure comprises an ejector, and the ejector is provided with a high-pressure inlet, an ejection port and a mixing outlet; the high-pressure inlet is communicated with the exhaust port; the mixing outlet is communicated to the inlet of the gas-liquid separator; the injection port is communicated with the liquid outlet of the gas-liquid separator and injects the liquid in the gas-liquid separator into the injector. According to the heat exchange system, the mechanical energy loss in the throttling process can be effectively reduced.
Description
Technical Field
This application belongs to heat transfer system technical field, concretely relates to heat transfer system.
Background
At present, with the progress of science and technology, the living standard of people is improved, and the energy consumption is also increased. The energy consumption of buildings has become the great head, wherein the energy consumption of the heating, ventilating and air conditioning industry accounts for most of the energy consumption. In a traditional vapor compression refrigeration system, an expansion valve is adopted for throttling and depressurizing, so that high-pressure working media cause mechanical energy loss after throttling, and system performance is influenced.
Therefore, how to provide a heat exchange system capable of effectively reducing the mechanical energy loss in the throttling process becomes a problem to be solved by those skilled in the art urgently.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a heat transfer system, can effectively reduce the mechanical energy loss in the throttle process.
In order to solve the above problem, the present application provides a heat exchange system, including:
a compressor having an air suction port and an air discharge port;
a gas-liquid separator;
the throttling structure comprises an ejector, and the ejector is provided with a high-pressure inlet, an ejection port and a mixing outlet; the high-pressure inlet is communicated with the exhaust port; the mixing outlet is communicated to the inlet of the gas-liquid separator; the injection port is communicated with the liquid outlet of the gas-liquid separator and injects the liquid in the gas-liquid separator into the injector.
Furthermore, the injection port is communicated with a liquid outlet of the gas-liquid separator through a first pipeline, and the heat exchange system further comprises a first heat exchanger which is arranged on the first pipeline.
Further, the heat exchange system further comprises a throttling device, the throttling device is arranged on the first pipeline, and the throttling device is located between the first heat exchanger and the liquid outlet of the gas-liquid separator.
Further, a gas outlet of the gas-liquid separator is communicated to the suction port.
Further, the heat exchange system also comprises a second heat exchanger; the second heat exchanger is located between the exhaust port and the high-pressure inlet and is communicated with the exhaust port all the time.
The heat exchange system further comprises a third heat exchanger, the third heat exchanger is provided with a first through flow port and a second through flow port, and the first through flow port can be selectively communicated with a liquid outlet of the gas-liquid separator or one end, far away from the exhaust port, of the second heat exchanger; the second through-flow port can selectively communicate with the suction port or the exhaust port.
Further, the heat exchange system also comprises a second pipeline, and the second through hole is selectively communicated with the exhaust port through the second pipeline.
Further, the heat exchange system also comprises a third pipeline, wherein the first end of the third pipeline can be selectively communicated with one end of the second heat exchanger away from the exhaust port and/or the high-pressure inlet, and the second end of the third pipeline can be selectively communicated with the first through-flow port or the liquid outlet of the gas-liquid separator.
Further, the heat exchange system also comprises a first three-way valve; the first three-way valve has an a port, a b port and a c port; the port a is communicated with an exhaust port; the port b is communicated with a second pipeline; the port c is communicated with a second heat exchanger; when the heat exchange system is in a first working state, the port a is communicated with the port c, and the port a and the port c are disconnected with the port b; when the heat exchange system is in a second working state, the port a is communicated with the port b and the port c.
Further, the heat exchange system also comprises a second three-way valve; the second three-way valve has a d port, an e port and an f port; the port d is communicated with a second heat exchanger; the port e is communicated with a high-pressure inlet; the f port is communicated with the first through flow port, when the heat exchange system is in a first working state, the d port is communicated with the e port, and the d port and the e port are disconnected with the f port; when the heat exchange system is in a second working state, the d port is communicated with the e port and the f port.
Further, the heat exchange system also comprises a third three-way valve; the third three-way valve is provided with an h port, an i port and a g port; the h port is connected with a liquid outlet of the gas-liquid separator; the port i is communicated with the first through flow port; the port f is communicated with the port g; when the heat exchange system is in a first working state, the h port is communicated with the i port, and the h port and the i port are disconnected with the g port; when the heat exchange system is in a second working state, the g port is communicated with the i port, and the g port and the i port are disconnected with the h port.
Further, the heat exchange system also comprises a fourth three-way valve; the fourth three-way valve has a j port, a k port and an l port; the j port is communicated with the second through port; the k port is communicated with an air suction port; the port I is communicated with an exhaust port; when the heat exchange system is in a first working state, the j port is communicated with the k port, and the j port and the k port are disconnected with the l port; when the heat exchange system is in a second working state, the port I is communicated with the port j, and the port I and the port j are disconnected with the port k.
Further, when the heat exchange system further comprises a first heat exchanger, the first heat exchanger is arranged on the refrigerating device and serves as a cold source of the refrigerating device; or the first heat exchanger is used for refrigerating indoor air;
and/or when the heat exchange system further comprises a second heat exchanger, the second heat exchanger is arranged on the water heater and is used for heating a water tank of the water heater;
and/or when the heat exchange system further comprises a third heat exchanger, the third heat exchanger is used for exchanging heat for indoor air.
The application provides a heat transfer system adopts the ejector as throttling arrangement, and the high temperature that will come from the compressor, high-pressure working medium expand in the ejector nozzle with higher speed, and the pressure energy of working medium turns into kinetic energy, and the high-speed flow that comes out from the nozzle draws low pressure, the low-speed working medium that comes from vapour and liquid separator liquid outlet department, and the two gets into the mixing chamber and mixes, and the two-phase flow after the mixture gets into the diffusion chamber, and the kinetic energy of working medium finally turns into pressure energy. The ejector is simple in structure, low in cost and free of moving parts, and can pre-compress part of refrigerant when being applied to a refrigerating system, so that higher suction pressure of a compressor is caused, power consumption of the compressor is reduced, part of expansion power can be recycled, and system performance is improved. This application can effectively reduce throttle in-process mechanical energy loss.
Drawings
FIG. 1 is a schematic flow diagram of a heat exchange system according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a refrigerant flow direction of a heat exchange system in a refrigeration state according to an embodiment of the present application;
fig. 3 is a schematic view of a refrigerant flow direction of a heat exchange system in a heating state according to an embodiment of the present application.
The reference numerals are represented as:
1. a compressor; 2. a first three-way valve; 3. a second heat exchanger; 4. a second three-way valve; 5. an ejector; 6. a first heat exchanger; 7. a gas-liquid separator; 8. a throttling device; 9. a third three-way valve; 10. a third heat exchanger; 11. and a fourth three-way valve.
Detailed Description
Referring to fig. 1 in combination, a heat exchange system includes: the compressor comprises a compressor 1, a gas-liquid separator 7 and a throttling structure, wherein the compressor 1 is provided with an air suction port and an air exhaust port; the throttling structure comprises an ejector 5, and the ejector 5 is provided with a high-pressure inlet, an ejection port and a mixing outlet; the high-pressure inlet is communicated with the exhaust port; the mixing outlet is communicated to the inlet of the gas-liquid separator 7; the injection port is communicated with a liquid outlet of the gas-liquid separator 7 and guides the liquid in the gas-liquid separator 7 into the injector 5. Adopt ejector 5 to regard as throttling arrangement 8 among this application heat transfer system, with the high temperature from compressor 1, high pressure working medium inflation in the nozzle of ejector 5 with higher speed, the pressure energy of working medium turns into kinetic energy, and the high velocity flow that comes out from the nozzle draws the low pressure that comes from vapour and liquid separator 7 liquid outlet, low-speed working medium, and the two gets into the mixing chamber and mixes, and the two-phase flow after the mixture gets into the diffusion chamber, and the kinetic energy of working medium finally turns into pressure energy. The ejector 5 is simple in structure, low in cost and free of moving parts, and can pre-compress part of refrigerant when being applied to a refrigerating system, so that the suction pressure of the compressor 1 is higher, the power consumption of the compressor is reduced, part of expansion power can be recycled, and the system performance is improved. The throttling valve is omitted as the throttling device 8 in the heat exchange system, the ejector 5 is adopted to replace the throttling device to reduce the pressure, the mechanical energy loss in the throttling process can be effectively reduced, and the throttling loss is further reduced. The gas-liquid separator 7 has an inlet for allowing the fluid flowing out from the outlet of the ejector 5 to enter the gas-liquid separator 7, a liquid outlet for guiding the liquid separated in the gas-liquid separator 7 to flow out, and a gas outlet for guiding the gas separated in the gas-liquid separator 7 to flow out.
The application also discloses some embodiments, draw the liquid outlet of mouth and vapour and liquid separator 7 to pass through first pipeline intercommunication, and heat transfer system still includes first heat exchanger 6, and first heat exchanger 6 sets up on first pipeline. The first heat exchanger 6 is an evaporator, liquid flowing out from a liquid outlet of the gas-liquid separator 7 passes through the first heat exchanger 6 to become low-pressure and low-speed fluid, the low-pressure and low-speed fluid becomes injection fluid of the injector 5, namely, when high-temperature and high-pressure working media from the compressor 1 expand and accelerate in a nozzle of the injector 5, pressure energy of the working media is converted into kinetic energy, and the high-speed flow from the nozzle injects the low-pressure and low-speed fluid to enter the injector 5.
The application also discloses some embodiments, the heat exchange system further comprises a throttling device 8, the throttling device 8 is arranged on the first pipeline, the throttling device 8 is positioned between the first heat exchanger 6 and the liquid outlet of the gas-liquid separator 7, and when fluid flowing out of the liquid outlet of the gas-liquid separator 7 is throttled and depressurized by the throttling device 8, the fluid can enter the first heat exchanger 6 to be effectively evaporated and absorb heat; the throttle device 8 is an expansion valve. The first evaporator may then act as a cold source.
The application also discloses some embodiments, the gas outlet of the gas-liquid separator 7 is communicated to the air suction port, after the two-phase fluid at the mixed outlet of the ejector 5 passes through the gas-liquid separator 7, the gas directly enters the air suction port of the compressor 1 for circulation, and the liquid enters the first heat exchanger 6 for evaporation refrigeration.
The application also discloses some embodiments, the heat exchange system further comprises a second heat exchanger 3; the second heat exchanger 3 is located between the exhaust port and the high-pressure inlet, is always communicated with the exhaust port and is also always communicated with the high-pressure inlet of the ejector 5, namely, fluid flowing through the second heat exchanger 3 is always high-temperature and high-pressure gas, and the second heat exchanger 3 can be used as a heat source, for example, arranged on a heating device to heat food or supply water and the like, and can also be used for heating indoor air.
The application also discloses some embodiments, second heat exchanger 3 is shell and tube heat exchanger, and second heat exchanger 3 can regard as outdoor heat exchanger, and it adopts shell and tube heat exchanger can prevent that the heat from giving off to can heat this heat recovery in order to treat the heating structure.
The application also discloses some embodiments, the heat exchange system further comprises a third heat exchanger 10, the third heat exchanger 10 is provided with a first through flow port and a second through flow port, and the first through flow port can be selectively communicated with the liquid outlet of the gas-liquid separator 7 or one end of the second heat exchanger 3 away from the exhaust port; the second through-flow port can selectively communicate with the suction port or the exhaust port. First heat exchanger 6, second heat exchanger 3 and third heat exchanger 10 have in this application heat exchanger, and this application heat transfer system has multi-temperature-zone distribution promptly, according to the state of refrigerant, circulates to different use occasions, can satisfy multi-temperature-zone refrigeration demand. For example, the first heat exchanger 6 can be used for preparing domestic hot water at a higher temperature; the third heat exchanger 10 is lower in temperature and can be used for refrigerating air conditioning of a room, and the second heat exchanger 3 is lower in temperature and can be used for air conditioning of lower temperature or food refrigeration. This application can carry out the refrigeration of multi-temperature district according to the state of refrigerant, can satisfy multi-temperature district refrigeration demand, and then satisfies user's different user demands.
The application also discloses some embodiments, heat transfer system still includes the second pipeline, and the second through-flow mouth can communicate with the gas vent through the second pipeline selectively. The third heat exchanger 10 can be used as an indoor heat exchanger, when the indoor space needs to be heated, the second circulation port is communicated with the exhaust port, and high-temperature and high-pressure fluid can directly enter the third heat exchanger 10 through the second pipeline so as to heat the indoor space.
The application also discloses some embodiments, the heat exchange system further comprises a third pipeline, a first end of the third pipeline can be selectively communicated with one end of the second heat exchanger 3 far away from the exhaust port and/or the high-pressure inlet, and a second end of the third pipeline can be selectively communicated with the first through flow port or the liquid outlet of the gas-liquid separator 7.
The application also discloses some embodiments, the heat exchange system further comprises a first three-way valve 2; the first three-way valve 2 has an a-port, a b-port, and a c-port; the port a is communicated with an exhaust port; the port b is communicated with a second pipeline; the port c is communicated with a second heat exchanger 3; when the heat exchange system is in a first working state, the port a is communicated with the port c, and the port a and the port c are disconnected with the port b; when the heat exchange system is in a second working state, the port a is communicated with the port b and the port c.
The application also discloses some embodiments, the heat exchange system further comprises a second three-way valve 4; the second three-way valve 4 has a d-port, an e-port, and an f-port; the port d is communicated with the second heat exchanger 3; the port e is communicated with a high-pressure inlet; the f port is communicated with the first through flow port, when the heat exchange system is in a first working state, the d port is communicated with the e port, and the d port and the e port are disconnected with the f port; when the heat exchange system is in a second working state, the d port is communicated with the e port and the f port.
The application also discloses some embodiments, and the heat exchange system further comprises a third three-way valve 9; the third three-way valve 9 has an h port, an i port, and a g port; the port h is connected with a liquid outlet of the gas-liquid separator 7; the port i is communicated with the first through flow port; the port f is communicated with the port g; when the heat exchange system is in a first working state, the h port is communicated with the i port, and the h port and the i port are disconnected with the g port; when the heat exchange system is in a second working state, the g port is communicated with the i port, and the g port and the i port are disconnected with the h port.
The application also discloses some embodiments, and the heat exchange system further comprises a fourth three-way valve 11; the fourth three-way valve 11 has j-port, k-port, and l-port; the j port is communicated with the second through port; the k port is communicated with an air suction port; the port I is communicated with an exhaust port; when the heat exchange system is in a first working state, the j port is communicated with the k port, and the j port and the k port are disconnected with the l port; when the heat exchange system is in a second working state, the port I is communicated with the port j, and the port I and the port j are disconnected with the port k. The first operating state may be an operating state when the third heat exchanger 10 cools, and the second operating state may be an operating state when the third heat exchanger 10 heats.
When the heat exchange system further comprises the first heat exchanger 6, the first heat exchanger 6 is arranged on the refrigerating device, and the first heat exchanger 6 is used as a cold source of the refrigerating device; or, the first heat exchanger 6 is used for refrigerating indoor air;
the application also discloses some embodiments, when heat transfer system still includes second heat exchanger 3, second heat exchanger 3 sets up on the water heater, and second heat exchanger 3 is used for heating the water tank of water heater.
The application also discloses some embodiments, when heat transfer system still includes third heat exchanger 10, third heat exchanger 10 is used for carrying out the heat transfer to indoor air, for example carries out refrigeration or heating.
When the third heat exchanger 10 refrigerates in this application: the a and c interfaces of the first three-way valve 2 are communicated, the d and e interfaces of the second three-way valve 4 are communicated, the h and i interfaces of the third three-way valve 9 are communicated, and the j and k interfaces of the fourth three-way valve 11 are communicated.
The flow path of the refrigerant is: the refrigerant flows out of the compressor 1 and enters the second heat exchanger 3 through the interfaces a and c of the first three-way valve 2, the high-pressure low-temperature refrigerant at the moment is taken as a main injection flow and enters the injector 5 through the interfaces d and e of the second three-way valve 4, the refrigerant which is evaporated and absorbs heat from the first heat exchanger 6 is injected, and the mixed refrigerant enters the gas-liquid separator 7; the gaseous refrigerant in the gas-liquid separator 7 directly enters the compressor 1 to complete the circulation; one part of the liquid refrigerant in the gas-liquid separator 7 enters the first heat exchanger 6 for evaporator heat absorption after being throttled by the throttling device 8, the other part of the liquid refrigerant enters the third heat exchanger 10 for refrigeration through the h and i interfaces of the third three-way valve 9, and the refrigerant after heat absorption of the third heat exchanger 10 enters the compressor 1 through the j and k interfaces of the fourth three-way valve 11 to complete circulation. Wherein the second heat exchanger 3 can prepare domestic hot water, the third heat exchanger 10 can perform refrigeration air conditioning for a room, and the first heat exchanger 6 can perform air conditioning at lower temperature or refrigerate foods. Thereby realizing the function of a multi-temperature zone.
When the third heat exchanger 10 heats: the interfaces a, b and c of the first three-way valve 2 are communicated, the interfaces l and j of the fourth three-way valve 11 are communicated, the interfaces i and g of the third three-way valve 9 are communicated, the interfaces d and e of the second three-way valve 4 are communicated, and the interfaces f and g of the second three-way valve 4 and the third three-way valve 9 are communicated.
The flow path of the refrigerant is: the refrigerant flows out of the compressor 1, and a part of the refrigerant enters the second heat exchanger 3 through the interfaces a and c of the first three-way valve 2, and at the moment, the second heat exchanger 3 can be used for preparing domestic hot water; the other part enters a third heat exchanger 10 through the a and b interfaces of the first three-way valve 2 and the ports l and g of the fourth three-way valve 11, and the third heat exchanger 10 can supply heat to a room; the high-pressure low-temperature refrigerant coming out of the second heat exchanger 3 and the high-pressure low-temperature refrigerant coming out of the third heat exchanger 10 are converged and then enter the ejector 5; the high-pressure refrigerant coming out of the second heat exchanger 3 and the third heat exchanger 10 is used as a main injection flow to inject the low-pressure refrigerant coming from the first heat exchanger 6, and the high-pressure refrigerant and the low-pressure refrigerant are mixed and then enter a gas-liquid separator 7; the gaseous refrigerant in the gas-liquid separator 7 directly enters the compressor 1, the compressor 1 completes the circulation, and the liquid refrigerant enters the first heat exchanger 6 through the electronic throttling device 8 to be evaporated, absorbed and refrigerated.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (13)
1. A heat exchange system, comprising:
a compressor (1), the compressor (1) having a suction port and a discharge port;
a gas-liquid separator (7);
the throttling structure comprises an ejector (5), and the ejector (5) is provided with a high-pressure inlet, an ejector port and a mixing outlet; the high pressure inlet is communicated with the exhaust port; the mixing outlet is communicated to the inlet of the gas-liquid separator (7); the injection port is communicated with a liquid outlet of the gas-liquid separator (7) and introduces the liquid in the gas-liquid separator (7) into the injector (5).
2. The heat exchange system according to claim 1, wherein the injection port is communicated with the liquid outlet of the gas-liquid separator (7) through a first pipeline, and the heat exchange system further comprises a first heat exchanger (6), and the first heat exchanger (6) is arranged on the first pipeline.
3. A heat exchange system according to claim 2, further comprising a throttling device (8), the throttling device (8) being arranged on the first conduit and the throttling device (8) being located between the first heat exchanger (6) and the liquid outlet of the gas-liquid separator (7).
4. A heat exchange system according to claim 1, wherein the gas outlet of the gas-liquid separator (7) is connected to the suction port.
5. A heat exchange system according to claim 1, further comprising a second heat exchanger (3); the second heat exchanger (3) is located between the exhaust port and the high-pressure inlet and is always communicated with the exhaust port.
6. The heat exchange system according to claim 5, further comprising a third heat exchanger (10), wherein the third heat exchanger (10) has a first through-flow port and a second through-flow port, and the first through-flow port can be selectively communicated with the liquid outlet of the gas-liquid separator (7) or the end of the second heat exchanger (3) away from the exhaust port; the second through-flow port can selectively communicate with the suction port or the exhaust port.
7. The heat exchange system of claim 6 further comprising a second conduit, wherein the second vent is in selective communication with the vent through the second conduit.
8. A heat exchange system according to claim 6, further comprising a third conduit having a first end selectively communicable with an end of the second heat exchanger (3) remote from the vent and/or the high pressure inlet, and a second end selectively communicable with the first vent or the liquid outlet of the gas-liquid separator (7).
9. The heat exchange system according to claim 7, further comprising a first three-way valve (2); the first three-way valve (2) has an a-port, a b-port and a c-port; the port a is communicated with the exhaust port; the port b is communicated with the second pipeline; the port c is communicated with the second heat exchanger (3); when the heat exchange system is in a first working state, the port a is communicated with the port c, and the port a and the port c are disconnected with the port b; when the heat exchange system is in a second working state, the port a is communicated with the port b and the port c.
10. A heat exchange system according to claim 6, characterized in that it further comprises a second three-way valve (4); the second three-way valve (4) has a d-port, an e-port and an f-port; the d port is communicated with the second heat exchanger (3); the e port is communicated with the high-pressure inlet; the f port is communicated with the first through flow port, when the heat exchange system is in a first working state, the d port is communicated with the e port, and the d port and the e port are disconnected with the f port; and when the heat exchange system is in a second working state, the port d is communicated with the port e and the port f.
11. A heat exchange system according to claim 10, further comprising a third three-way valve (9); the third three-way valve (9) has an h port, an i port and a g port; the h port is communicated with a liquid outlet of the gas-liquid separator (7); the i port is communicated with the first through flow port; the f port is communicated with the g port; when the heat exchange system is in a first working state, the h port is communicated with the i port, and the h port and the i port are disconnected with the g port; and when the heat exchange system is in a second working state, the g port is communicated with the i port, and the g port and the i port are disconnected with the h port.
12. A heat exchange system according to claim 6, characterized in that it further comprises a fourth three-way valve (11); the fourth three-way valve (11) has a j port, a k port and an l port; the j port is communicated with the second through port; the k port is communicated with the air suction port; the port I is communicated with the exhaust port; when the heat exchange system is in a first working state, the j port is communicated with the k port, and the j port and the k port are disconnected with the l port; when the heat exchange system is in a second working state, the port I is communicated with the port j, and the port I and the port j are disconnected with the port k.
13. A heat exchange system according to any one of claims 1 to 12, wherein when the heat exchange system further comprises a first heat exchanger (6), the first heat exchanger (6) is provided on a cold storage device, the first heat exchanger (6) acting as a cold source for the cold storage device; or the first heat exchanger (6) is used for refrigerating indoor air;
and/or when the heat exchange system further comprises a second heat exchanger (3), the second heat exchanger (3) is arranged on the water heater, and the second heat exchanger (3) is used for heating a water tank of the water heater;
and/or when the heat exchange system further comprises a third heat exchanger (10), the third heat exchanger (10) is used for exchanging heat for indoor air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111507950.XA CN114183942B (en) | 2021-12-10 | 2021-12-10 | Heat exchange system |
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| CN202111507950.XA CN114183942B (en) | 2021-12-10 | 2021-12-10 | Heat exchange system |
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| CN114183942A true CN114183942A (en) | 2022-03-15 |
| CN114183942B CN114183942B (en) | 2023-01-10 |
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