CN220669821U - Heat pump system and air conditioner - Google Patents
Heat pump system and air conditioner Download PDFInfo
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- CN220669821U CN220669821U CN202321485024.1U CN202321485024U CN220669821U CN 220669821 U CN220669821 U CN 220669821U CN 202321485024 U CN202321485024 U CN 202321485024U CN 220669821 U CN220669821 U CN 220669821U
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- heat exchanger
- way valve
- compressor
- throttling element
- heat
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- 239000003507 refrigerant Substances 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000011084 recovery Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a heat pump system and an air conditioner, which relate to the technical field of heat recovery, and are respectively connected with an air inlet pipeline of a compressor, an exhaust pipeline of the compressor, a first heat exchanger and a second heat exchanger by means of a four-way valve; an electric valve is arranged on a pipeline between the four-way valve and the compressor; the compressor is utilized to generate power, the electric valve, the four-way valve and each throttling element are mutually matched to enable the refrigerant medium to form different flow directions, and different mode switching can be achieved according to the sequence difference of heat exchangers through which the refrigerant medium flows; the rectifier bridge is arranged, and the refrigerant medium keeps the same flow direction under different modes; the system is provided with only one four-way valve, has a simple structure and can effectively realize the switching of multiple modes.
Description
Technical Field
The utility model relates to the technical field of heat recovery, in particular to a heat pump system. In addition, the utility model also relates to an air conditioner.
Background
The current energy supply is becoming tight, the environmental protection requirement is continuously increasing, the demand for new energy which is energy-saving and environment-friendly is continuously increasing, and the heat pump is one of the new energy. The heat pump can transfer low-temperature heat energy to high-temperature heat energy, can greatly utilize heat in natural resources and waste heat resources, effectively saves primary energy required by civil and industry, has been applied to actual engineering, and has obtained good effects.
Condensation heat recovery is a good energy-saving technology, and main air conditioner host manufacturers also promote related products to the market. However, the heat recovery heat pump host system on the market is too complex and high in cost, which affects further popularization and use.
It is a technical problem to be solved by those skilled in the art how to develop a simple and effective heat recovery heat pump system.
Disclosure of Invention
The utility model provides a heat pump system, which is provided with only one four-way valve to simplify the system structure, and adopts a rectifier bridge to make the flow direction of refrigerant medium consistent, and the specific scheme is as follows:
a heat pump system comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a four-way valve, an electric valve, a first throttling element, a second throttling element, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve and a refrigerant pipeline for communicating functional components;
the four-way valve is respectively connected with an air inlet pipeline of the compressor, an exhaust pipeline of the compressor, the first heat exchanger and the second heat exchanger; the electric valve is arranged on a pipeline between the four-way valve and the compressor;
the pipeline between the exhaust port of the compressor and the electric valve is connected to one end pipeline of the third heat exchanger, and the other end pipeline of the third heat exchanger is connected to the pipeline between the rectifier bridge and the second heat exchanger through the second throttling element;
the rectifier bridge comprises the first one-way valve, the second one-way valve, the third one-way valve, the fourth one-way valve and the first throttling element; the first check valve is in one-way conduction from the first throttling element to the second heat exchanger, the second check valve is in one-way conduction from the first throttling element to the first heat exchanger, the third check valve is in one-way conduction from the second heat exchanger to the first throttling element, and the fourth check valve is in one-way conduction from the first heat exchanger to the first throttling element.
Optionally, the air conditioner further comprises a third throttling element and a fourth heat exchanger, wherein one end of the third throttling element is connected with the first throttling element, the third one-way valve and the fourth one-way valve, and the other end of the third throttling element is connected with an intermediate air inlet of the compressor;
the fourth heat exchanger is used for carrying out heat exchange on the refrigerant medium flowing to the middle air inlet of the compressor.
Optionally, the first heat exchanger is an air-cooled heat exchanger, the second heat exchanger and the third heat exchanger are water-cooled heat exchangers, and the fourth heat exchanger is a refrigerant-refrigerant heat exchanger.
Optionally, the second heat exchanger is used for exchanging heat between the refrigerant medium and the air-conditioning water, and the third heat exchanger is used for exchanging heat between the refrigerant medium and the domestic water.
Optionally, the first throttling element, the second throttling element and the third throttling element are all electronic expansion valves.
Optionally, the device further comprises an oil separator arranged on the exhaust pipeline of the compressor, and the oil separator is connected to the air inlet pipeline of the compressor through an oil return electric valve and an oil return capillary tube.
Optionally, the air-liquid separator is arranged on the air inlet pipeline of the compressor.
Optionally, the heat exchanger further comprises a liquid storage device, one end of the liquid storage device is connected to a pipeline between the second heat exchanger and the second throttling element, and the other end of the liquid storage device is connected to a pipeline between the first one-way valve and the third one-way valve.
The utility model also provides an air conditioner comprising the heat pump system.
The utility model provides a heat pump system and an air conditioner, which are respectively connected with an air inlet pipeline of a compressor, an exhaust pipeline of the compressor, a first heat exchanger and a second heat exchanger by means of a four-way valve; an electric valve is arranged on a pipeline between the four-way valve and the compressor; the compressor is utilized to generate power, the electric valve, the four-way valve and each throttling element are mutually matched to enable the refrigerant medium to form different flow directions, and different mode switching can be achieved according to the sequence difference of heat exchangers through which the refrigerant medium flows; the rectifier bridge is arranged, and the refrigerant medium keeps the same flow direction under different modes; the system is provided with only one four-way valve, has a simple structure and can effectively realize the switching of multiple modes.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a first embodiment of a heat pump system according to the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of a heat pump system according to the present utility model;
FIG. 3 is a schematic diagram of a refrigerant medium flow path during a second embodiment operating in a cooling mode;
FIG. 4 is a schematic diagram of a refrigerant medium flow path when the second embodiment is operating in a heating mode;
FIG. 5 is a schematic diagram of a coolant flow path during a water heating mode of operation according to a second embodiment;
FIG. 6 is a schematic diagram of a coolant flow path during a second embodiment of a heat recovery mode of operation;
FIG. 7 is a schematic diagram of the refrigerant medium flow path when the second embodiment is operating in both heating and heating modes.
The drawings include:
the compressor 1, the first heat exchanger 2.1, the second heat exchanger 2.2, the third heat exchanger 2.3, the fourth heat exchanger 2.4, the four-way valve 3, the electric valve 4, the first throttling element 5.1, the second throttling element 5.2, the third throttling element 5.3, the rectifier bridge 6, the first check valve 6.1, the second check valve 6.2, the third check valve 6.3, the fourth check valve 6.4, the oil separator 7, the oil return electric valve 7.1, the oil return capillary tube 7.2, the gas-liquid separator 8 and the liquid reservoir 9.
Detailed Description
The core of the utility model is to provide a heat pump system, only one four-way valve is arranged, the system structure can be simplified, and the flow direction of the refrigerant medium is consistent by adopting a rectifier bridge.
In order to make those skilled in the art better understand the technical scheme of the present utility model, the following describes the heat pump system and the air conditioner of the present utility model in detail with reference to the accompanying drawings and the specific embodiments.
Referring to fig. 1, the heat pump system provided by the utility model comprises a compressor 1, a first heat exchanger 2.1, a second heat exchanger 2.2, a third heat exchanger 2.3, a four-way valve 3, an electric valve 4, a first throttling element 5.1, a second throttling element 5.2, a first one-way valve 6.1, a second one-way valve 6.2, a third one-way valve 6.3, a fourth one-way valve 6.4 and other functional components, and a refrigerant pipeline communicated with the functional components, wherein a refrigerant medium (refrigerant) circulates in the refrigerant pipeline, and the refrigerant medium can flow through different functional components. The compressor 1 is used for providing the flowing power of the refrigerant medium; the first heat exchanger 2.1, the second heat exchanger 2.2 and the third heat exchanger 2.3 are used for realizing heat exchange; the four-way valve 3, the electric valve 4, the first throttling element 5.1, the second throttling element 5.2, the first one-way valve 6.1, the second one-way valve 6.2, the third one-way valve 6.3 and the fourth one-way valve 6.4 are used for controlling the states of the flow direction, the flow rate and the like of the refrigerant medium.
The four-way valve 3 is respectively connected with an air inlet pipeline (below the compressor in fig. 1 and used for sucking air), an air outlet pipeline (above the compressor in fig. 1 and used for discharging air) of the compressor 1, the first heat exchanger 2.1 and the second heat exchanger 2.2; a four-way valve (four-way valve) is a control valve having four ports connected to different functional components, respectively. The electric valve 4 is arranged on a pipeline between the four-way valve 3 and the compressor 1, namely, the four-way valve 3 is connected with the electric valve 4 through a pipeline, and refrigerant medium discharged from the compressor 1 passes through the electric valve 4 and then passes through the four-way valve 3. Depending on the state of the four-way valve 3, it is possible to communicate with different functional components.
The pipeline between the exhaust port of the compressor 1 and the electric valve 4 is connected to one end pipeline of the third heat exchanger 2.3, and the other end pipeline of the third heat exchanger 2.3 is connected to the pipeline between the rectifier bridge 6 and the second heat exchanger 2.2 through the second throttling element 5.2; the third heat exchanger 2.3 and the electric valve 4 are respectively positioned on the two pipelines, and the third heat exchanger 2.3 and the electric valve 4 can have different oil way on-off states.
The part surrounded by the broken line square frame in fig. 1 is a rectifier bridge 6, the rectifier bridge 6 has the function of unifying the flowing direction of the refrigerant medium flowing through, avoiding the refrigerant medium from changing the flowing direction in the middle of the pipeline of the rectifier bridge 6, and ensuring that all the positions of the pipeline of the rectifier bridge 6 are convenient to keep consistent all the time when the refrigerant medium flows. The function of the rectifier bridge 6 is mainly achieved by a plurality of one-way valves, and the rectifier bridge 6 comprises a first one-way valve 6.1, a second one-way valve 6.2, a third one-way valve 6.3, a fourth one-way valve 6.4 and a first throttling element 5.1.
The third heat exchanger 2.3 is connected to the first one-way valve 6.1 and the third one-way valve 6.3 by means of a second throttling element 5.2, the second heat exchanger 2.2 is connected to the first one-way valve 6.1 and the third one-way valve 6.3, the first heat exchanger 2.1 is connected to the second one-way valve 6.2 and the fourth one-way valve 6.4, one end of the first throttling element 5.1 is connected to the first one-way valve 6.1 and the second one-way valve 6.2, and the other end is connected to the third one-way valve 6.3 and the fourth one-way valve 6.4. The first non-return valve 6.1 is in non-return conduction from the first throttling element 5.1 to the second heat exchanger 2.2, the second non-return valve 6.2 is in non-return conduction from the first throttling element 5.1 to the first heat exchanger 2.1 and the fourth non-return valve 6.4, the third non-return valve 6.3 is in non-return conduction from the second heat exchanger 2.2 to the first throttling element 5.1, and the fourth non-return valve 6.4 is in non-return conduction from the second non-return valve 6.2 and the first heat exchanger 2.1 to the first throttling element 5.1.
The heat pump system is simple in structure, and can realize different mode switching only by matching one four-way valve with other parts.
On the basis of the above scheme, with reference to fig. 2, the heat pump system of the present utility model further includes a third throttling element 5.3 and a fourth heat exchanger 2.4, wherein one end of the third throttling element 5.3 is connected to the first throttling element 5.1, the third check valve 6.3 and the fourth check valve 6.4, and the other end is connected to the middle air inlet of the compressor 1; the fourth heat exchanger 2.4 is used for exchanging heat with the refrigerant medium flowing to the middle air inlet of the compressor 1. The fourth heat exchanger 2.4 is arranged on the rectifier bridge 6, at least two pipelines are communicated in the fourth heat exchanger 2.4, the flowing direction of the refrigerants of the two pipelines is unchanged, one high-temperature refrigerant and the other low-temperature refrigerant are subjected to heat exchange through the two pipelines in the fourth heat exchanger 2.4, and heat transfer is achieved.
Specifically, the first heat exchanger 2.1 is an air-cooled heat exchanger, the second heat exchanger 2.2 and the third heat exchanger 2.3 are respectively water-cooled heat exchangers, and the fourth heat exchanger 2.4 is a refrigerant-refrigerant heat exchanger; the heat exchanger is only one preferred embodiment, and other arrangements can be used, and all such embodiments are intended to be included within the scope of the present utility model.
Furthermore, the second heat exchanger 2.2 provided by the utility model is used for exchanging heat between the refrigerant medium and the air-conditioning water, and the third heat exchanger 2.3 is used for exchanging heat between the refrigerant medium and the domestic water.
Further, the first throttling element 5.1, the second throttling element 5.2 and the third throttling element 5.3 adopted by the utility model are all electronic expansion valves. The electronic expansion valve utilizes the electric signal generated by the adjusted parameters to control the voltage or current applied to the expansion valve, thereby achieving the purpose of adjusting the liquid supply amount. The stepless variable capacity refrigerating system has wide refrigerating liquid supply amount regulating range, fast regulating reaction and electronic expansion valve capable of meeting the requirement.
On the basis of any one of the above technical aspects and combinations thereof, the heat pump system of the present utility model further includes an oil separator 7 provided in a discharge line of the compressor 1, and oil is separated from refrigerant when refrigerant gas discharged from the compressor 1 passes through the oil separator 7; the oil separator 7 is connected to the intake line of the compressor 1 through an oil return motor valve 7.1 and an oil return capillary tube 7.2. The oil separator 7 is connected to the intake line of the compressor 1 through an oil return motor valve 7.1 and an oil return capillary tube 7.2.
The heat pump system of the utility model also comprises a gas-liquid separator 8 arranged on the air inlet pipeline of the compressor 1, wherein the gas-liquid separator 8 can separate the gas and the liquid of the refrigerant flowing back to the compressor 1, and only send the liquid of the refrigerant back to the compressor 1.
The heat pump system of the utility model also comprises a liquid storage device 9, wherein one end of the liquid storage device 9 is connected with a pipeline between the second heat exchanger 2.2 and the second throttling element 5.2, and the other end of the liquid storage device is connected with a pipeline between the first one-way valve 6.1 and the third one-way valve 6.3; the accumulator 9 is used for temporarily storing the refrigerant and can play a role of buffering.
With reference to fig. 2, the system structure can realize switching of five modes, and is specifically as follows:
1. in the operation refrigeration mode, referring to fig. 3, the high-temperature and high-pressure refrigerant gas discharged from the compressor 1 enters the four-way valve 3 through the electric valve 4, and then enters the first heat exchanger 2.1 to exchange heat with air, and the high-temperature and high-pressure gas is condensed (the refrigerant medium releases heat).
The refrigerant flows through the fourth check valve 6.4 and the fourth heat exchanger 2.4 after condensation, is throttled by the first throttling element 5.1, enters the second heat exchanger 2.2 through the first check valve 6.1 and the liquid storage 9 for evaporation heat exchange, and at the moment, the circulating water flowing through the second heat exchanger 2.2 is cooled to realize refrigeration.
The refrigerant coming out of the second heat exchanger 2.2 finally returns to the compressor 1 via the four-way valve 3, the gas-liquid separator 8.
At the same time, a part of refrigerant is led out between the fourth heat exchanger 2.4 and the first throttle valve 5.1, and the refrigerant passes through the third throttle element 5.3 and the fourth heat exchanger 5.3 to enter the middle air inlet of the compressor 1 (the left side of the compressor 1). The flow directions of the two pipelines in the fourth heat exchanger 2.4 are opposite, the temperature of the left pipeline is lower than that of the right pipeline, and the refrigerant entering from the middle air inlet of the compressor 1 is used for supplementing air and increasing enthalpy for the compressor 1.
2. When the heating mode is operated, with reference to fig. 4, the high-temperature and high-pressure refrigerant gas discharged from the compressor 1 enters the four-way valve 3 through the electric valve 4, and then enters the second heat exchanger 2.2 to exchange heat with circulating water, and the high-temperature and high-pressure refrigerant gas is condensed. The circulating water passing through the second heat exchanger 2.2 is heated at this time to achieve heating.
The refrigerant flows through the liquid storage 9, the third one-way valve 6.3 and the fourth heat exchanger 2.4, throttles by the first throttling element 5.1, enters the first heat exchanger 2.1 through the second one-way valve 6.2 for evaporation heat exchange, and finally returns to the compressor 1 through the four-way valve 3 and the gas-liquid separator 8 from the refrigerant coming out of the first heat exchanger 2.1.
At the same time, a part of refrigerant is led out between the fourth heat exchanger 2.4 and the first throttle valve 5.1, and the refrigerant passes through the third throttle element 5.3 and the fourth heat exchanger 5.3 to enter the middle air inlet of the compressor 1 (the left side of the compressor 1). The flow directions of the two pipelines in the fourth heat exchanger 2.4 are opposite, the temperature of the left pipeline is lower than that of the right pipeline, and the refrigerant entering from the middle air inlet of the compressor 1 is used for supplementing air and increasing enthalpy for the compressor 1.
3. When the water heating mode is operated, with reference to fig. 5, the high-temperature and high-pressure refrigerant gas discharged from the compressor 1 enters the third heat exchanger 2.3 to exchange heat with domestic hot water, and the domestic hot water is further heated. The refrigerant enters the first heat exchanger 2.1 through the second throttling element 5.2, the liquid storage 9, the third one-way valve 6.3, the first throttling element 5.1 and the second one-way valve 6.2 for evaporation heat exchange, and then returns to the compressor 1 through the four-way valve 3 and the gas-liquid separator 8.
At the same time, a part of refrigerant is led out between the fourth heat exchanger 2.4 and the first throttle valve 5.1, and the refrigerant passes through the third throttle element 5.3 and the fourth heat exchanger 5.3 to enter the middle air inlet of the compressor 1 (the left side of the compressor 1). The flow directions of the two pipelines in the fourth heat exchanger 2.4 are opposite, the temperature of the left pipeline is lower than that of the right pipeline, and the refrigerant entering from the middle air inlet of the compressor 1 is used for supplementing air and increasing enthalpy for the compressor 1.
4. When the heat recovery mode is operated, with reference to fig. 6, the high-temperature and high-pressure refrigerant gas discharged by the compressor 1 enters the third heat exchanger 2.3 to exchange heat with domestic hot water, and the domestic hot water is further heated; the refrigerant enters the second heat exchanger 2.2 for evaporation heat exchange after being throttled by the second throttling element 5.2, at the moment, circulating water flowing through the second heat exchanger 2.2 is cooled to realize heat recovery, and then returns to the compressor 1 through the four-way valve 3 and the gas-liquid separator 8. In this mode heat is absorbed by the water and the first heat exchanger 2.1 does not take part in heat exchange.
5. When the system is operated in the mode of heating and water heating simultaneously, with reference to fig. 7, a part of high-temperature and high-pressure refrigerant gas discharged by the compressor 1 enters the third heat exchanger 2.3 to exchange heat with domestic hot water, and the domestic hot water is further heated; the refrigerant enters the first heat exchanger 2.1 for evaporation heat exchange through the liquid storage 9, the third one-way valve 6.3, the first one-way valve 5.1 and the second one-way valve 6.2 after being throttled by the second throttle element 5.2, and then returns to the compressor 1 through the four-way valve 3 and the gas-liquid separator 8.
The other part of high-temperature high-pressure refrigerant gas enters the four-way valve 3 through the electric valve 4 and then enters the second heat exchanger 2.2 to exchange heat with the circulating water, and the high-temperature high-pressure gas is condensed (at the moment, the circulating water is heated so as to realize heating). After flowing through the third one-way valve 6.3, the refrigerant is throttled by the first throttling element 5.1, enters the first heat exchanger 2.1 through the second one-way valve 6.2 for evaporation, and finally returns to the compressor 1 through the four-way valve 3 and the gas-liquid separator 8.
At the same time, a part of refrigerant is led out between the fourth heat exchanger 2.4 and the first throttle valve 5.1, and the refrigerant passes through the third throttle element 5.3 and the fourth heat exchanger 5.3 to enter the middle air inlet of the compressor 1 (the left side of the compressor 1). The flow directions of the two pipelines in the fourth heat exchanger 2.4 are opposite, the temperature of the left pipeline is lower than that of the right pipeline, and the refrigerant entering from the middle air inlet of the compressor 1 is used for supplementing air and increasing enthalpy for the compressor 1.
It should be noted that, for the structure shown in fig. 1, due to the lack of a corresponding structure, for example: the oil separator 7, the oil return electric valve 7.1, the oil return capillary tube 7.2, the gas-liquid separator 8, the liquid storage 9, the fourth heat exchanger 2.4, the third throttling element 5.3 and the like, wherein the flowing directions of the refrigerants are basically consistent, and the main characteristic is that the fourth heat exchanger 2.4 and the third throttling element 5.3 are lack to supplement air and increase enthalpy to the middle air inlet of the compressor 1.
The utility model also provides an air conditioner comprising the heat pump system, and the air conditioner can achieve the same technical effects. For other structures of the air conditioner, please refer to the prior art, and the present utility model is not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The heat pump system is characterized by comprising a compressor (1), a first heat exchanger (2.1), a second heat exchanger (2.2), a third heat exchanger (2.3), a four-way valve (3), an electric valve (4), a first throttling element (5.1), a second throttling element (5.2), a first one-way valve (6.1), a second one-way valve (6.2), a third one-way valve (6.3), a fourth one-way valve (6.4) and a refrigerant pipeline communicated with all functional components;
the four-way valve (3) is respectively connected with an air inlet pipeline of the compressor (1), an exhaust pipeline of the compressor (1), the first heat exchanger (2.1) and the second heat exchanger (2.2); the electric valve (4) is arranged on a pipeline between the four-way valve (3) and the compressor (1);
the pipeline between the exhaust port of the compressor (1) and the electric valve (4) is connected to one end pipeline of the third heat exchanger (2.3), and the other end pipeline of the third heat exchanger (2.3) is connected to the pipeline between the rectifier bridge (6) and the second heat exchanger (2.2) through the second throttling element (5.2);
-the rectifier bridge (6) comprises the first one-way valve (6.1), the second one-way valve (6.2), the third one-way valve (6.3), the fourth one-way valve (6.4) and the first throttling element (5.1); the first check valve (6.1) is in one-way conduction from the first throttling element (5.1) to the second heat exchanger (2.2), the second check valve (6.2) is in one-way conduction from the first throttling element (5.1) to the first heat exchanger (2.1), the third check valve (6.3) is in one-way conduction from the second heat exchanger (2.2) to the first throttling element (5.1), and the fourth check valve (6.4) is in one-way conduction from the first heat exchanger (2.1) to the first throttling element (5.1).
2. The heat pump system according to claim 1, further comprising a third throttling element (5.3) and a fourth heat exchanger (2.4), one end of the third throttling element (5.3) being connected to the first throttling element (5.1), the third one-way valve (6.3) and the fourth one-way valve (6.4), the other end being connected to an intermediate intake of the compressor (1);
the fourth heat exchanger (2.4) is used for carrying out heat exchange on the refrigerant medium flowing to the middle air inlet of the compressor (1).
3. The heat pump system according to claim 2, wherein the first heat exchanger (2.1) is an air-cooled heat exchanger, the second heat exchanger (2.2), the third heat exchanger (2.3) is a water-cooled heat exchanger, and the fourth heat exchanger (2.4) is a refrigerant-refrigerant heat exchanger.
4. A heat pump system according to claim 3, characterized in that the second heat exchanger (2.2) is adapted to exchange heat of a refrigerant medium with air-conditioned water, and the third heat exchanger (2.3) is adapted to exchange heat of a refrigerant medium with domestic water.
5. A heat pump system according to claim 2, characterized in that the first throttling element (5.1), the second throttling element (5.2) and the third throttling element (5.3) are all electronic expansion valves.
6. The heat pump system according to any one of claims 1 to 5, further comprising an oil separator (7) provided to an exhaust line of the compressor (1), the oil separator (7) being connected to an intake line of the compressor (1) through an oil return motorised valve (7.1) and an oil return capillary tube (7.2).
7. The heat pump system according to claim 6, further comprising a gas-liquid separator (8) provided to an intake line of the compressor (1).
8. The heat pump system according to claim 6, further comprising a reservoir (9), one end of the reservoir (9) being connected to the line between the second heat exchanger (2.2) and the second throttling element (5.2), the other end being connected to the line between the first one-way valve (6.1) and the third one-way valve (6.3).
9. An air conditioner comprising the heat pump system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485024.1U CN220669821U (en) | 2023-06-12 | 2023-06-12 | Heat pump system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485024.1U CN220669821U (en) | 2023-06-12 | 2023-06-12 | Heat pump system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220669821U true CN220669821U (en) | 2024-03-26 |
Family
ID=90328797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321485024.1U Active CN220669821U (en) | 2023-06-12 | 2023-06-12 | Heat pump system and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220669821U (en) |
-
2023
- 2023-06-12 CN CN202321485024.1U patent/CN220669821U/en active Active
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