CN219415044U - Jet enthalpy-increasing heat pump system and air conditioner thereof - Google Patents
Jet enthalpy-increasing heat pump system and air conditioner thereof Download PDFInfo
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- CN219415044U CN219415044U CN202320565557.4U CN202320565557U CN219415044U CN 219415044 U CN219415044 U CN 219415044U CN 202320565557 U CN202320565557 U CN 202320565557U CN 219415044 U CN219415044 U CN 219415044U
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- 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
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- 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
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Abstract
The application discloses jet-propelled enthalpy-increasing heat pump system and air conditioner thereof, in the jet-propelled enthalpy-increasing heat pump system, the economic ware includes first input, first output and second output, the gas vent of compressor is connected with indoor heat exchanger's one end, indoor heat exchanger's the other end is connected with first input, first output is connected with outdoor heat exchanger's one end, the air inlet of compressor is connected to outdoor heat exchanger's the other end, the second output is connected to the air inlet of compressor through first branch road, the second output is still connected to the air filling mouth of compressor through the second branch road, flow control assembly sets up in first branch road or second branch road. In a medium-high temperature environment, one of the branches can be closed, and the system is equivalent to a heat pump system of a primary economizer; in low temperature and ultra-low temperature environment, the flow regulating assembly can be opened, so that the air supplementing proportion of the first branch and the second branch can be adjusted, and the optimal system heating capacity and energy efficiency can be achieved.
Description
Technical Field
The application relates to the technical field of enhanced vapor injection, in particular to an enhanced vapor injection heat pump system and an air conditioner thereof.
Background
The jet enthalpy-increasing heat pump system can improve the heating capacity under lower environment temperature so as to meet the heat load requirement under low temperature environment.
However, in the ultralow temperature environment, the pressure difference between the medium-pressure refrigerant and the high-pressure refrigerant in the enhanced vapor injection heat pump system is not large, the vapor injection quantity is small, the heat exchange quantity of an economizer in the enhanced vapor injection heat pump system is small, and the heating capacity of the enhanced vapor injection heat pump system is affected. In the related art, the two-stage jet enthalpy-increasing heat pump system jets enthalpy to the low pressure side through the structure of the two-stage economizer in the ultralow temperature environment, so that heating capacity in the ultralow temperature environment is improved, but in the medium-high temperature environment, the second-stage economizer of the two-stage jet enthalpy-increasing heat pump system does not need to be started, and cost waste is caused.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides an enhanced vapor injection heat pump system and an air conditioner thereof, which can reduce the hardware cost of the enhanced vapor injection heat pump system on the premise of ensuring the heating capacity in an ultralow temperature environment.
The embodiment of the first aspect of the application provides an enhanced vapor injection heat pump system, which comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, a gas-liquid separation heat exchange assembly and a flow regulating assembly, the gas-liquid separation heat exchange assembly comprises a first input end, a first output end and a second output end, an exhaust port of the compressor is connected with one end of the indoor heat exchanger, the other end of the indoor heat exchanger is connected with the first input end, the first output end is connected with one end of the outdoor heat exchanger, the other end of the outdoor heat exchanger is connected with an air inlet of the compressor, the second output end is connected to the air inlet of the compressor through a first branch, the second output end is connected to an air supplementing port of the compressor through a second branch, and the flow regulating assembly is arranged in the first branch or the second branch.
The enhanced vapor injection heat pump system of the embodiment of the first aspect of the application has at least the following beneficial effects: the system is provided with a gas-liquid separation heat exchange component, a first output end serving as a main path outlet in the gas-liquid separation heat exchange component is connected with an outdoor heat exchanger, and liquid refrigerant can be sent to the outdoor heat exchanger for heat exchange; in addition, the second output end serving as an outlet of the auxiliary passage is divided into two parts, the first branch passage is connected with the air inlet of the compressor, the second branch passage is connected with the air supplementing port of the compressor, and the flow regulating assembly is arranged in the first branch passage or the second branch passage, so that the gaseous refrigerant in the first branch passage and the second branch passage can be distributed possibly; for example, with this configuration, when in a medium-high temperature environment, one of the branches (e.g., the first branch is provided with a flow regulating assembly and the first branch is shut off by the flow regulating assembly) can be shut off, so that the system is equivalent to the heat pump system of the primary economizer; and in low temperature and ultra-low temperature environment, the compressor needs more air supplementing quantity, and the air supplementing proportion of the first branch and the second branch can be changed through the flow adjusting component, so that the optimal system heating capacity and energy efficiency can be achieved. Because the heat pump system of this application embodiment only needs a gas-liquid separation heat transfer subassembly, compare in prior art and carry out the scheme of tonifying qi through the two-stage economy ware, be equivalent to merging into an economy ware with the two-stage economy ware, can reduce the cost, guaranteed the heating performance of heat pump system simultaneously.
According to some embodiments of the present application, the gas-liquid separation heat exchange assembly is a flash tank, the flash tank includes an input end, a liquid output end, and a gaseous output end, the input end of the flash tank is the first input end, the liquid output end of the flash tank is the first output end, and the gaseous output end of the flash tank is the second output end.
According to some embodiments of the present application, the gas-liquid separation heat exchange assembly is a plate heat exchanger, the plate heat exchanger includes a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is the first input end, the second inlet is connected to the first outlet through an expansion valve, the first outlet is the first output end, and the second outlet is the second output end.
According to some embodiments of the present application, the gas-liquid separator further comprises a second inlet connected to the outdoor heat exchanger through a third branch, the first branch and the third branch converging to the second inlet, and a third outlet connected to the air intake of the compressor.
According to some embodiments of the present application, the heat exchanger further comprises a four-way valve, wherein the four-way valve comprises a first port, a second port, a third port and a fourth port, the first port is connected with an exhaust port of the compressor, the second port is connected with the indoor heat exchanger, the third port is connected with the third branch, and the fourth port is connected with the outdoor heat exchanger.
According to some embodiments of the present application, an outdoor throttle device is further included, the outdoor throttle device being disposed between the outdoor heat exchanger and the first output.
According to some embodiments of the present application, an indoor throttling device is further included, the indoor throttling device being disposed between the indoor heat exchanger and the first input.
According to some embodiments of the present application, the flow regulating assembly is disposed in the first branch, and a valve of the flow regulating assembly is used for being controlled to be opened to increase the flow of the gaseous refrigerant in the first branch.
According to some embodiments of the application, the flow regulating assembly is an electronic expansion valve or an electronic on-off valve.
According to some embodiments of the application, the compressor is an enhanced vapor injection compressor or a dual stage compressor.
According to some embodiments of the present application, the method further comprises a first temperature sensor for detecting a temperature of the outdoor heat exchanger and a second temperature sensor for detecting a temperature of the indoor heat exchanger.
An embodiment of a second aspect of the present application provides an air conditioner, including an enhanced vapor injection heat pump system as in the embodiment of the first aspect.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a system architecture diagram of an enhanced vapor injection heat pump system provided in an embodiment of the present application;
fig. 2 is a system architecture diagram of a flash tank as a gas-liquid separation heat exchange component in an enhanced vapor injection heat pump system provided in an embodiment of the present application;
fig. 3 is a system architecture diagram of a plate heat exchanger as a gas-liquid separation heat exchange component in an enhanced vapor injection heat pump system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.
In the description of the present application, the meaning of a number is one or more, the meaning of a number is two or more, greater than, less than, exceeding, etc. are understood to not include the present number, and the meaning of a number above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.
The air-injection enthalpy-increasing system has the advantages that the air-supplementing port is formed in the compressor, a part of gaseous refrigerant is separated from the refrigerant pipeline and is input into the air-supplementing port of the compressor, the air inflow of the compressor can be improved, and the working performance of the air-injection enthalpy-increasing system is improved, so that the air-injection enthalpy-increasing system is often used in the field of air conditioners, the heating performance in a low-temperature environment is improved, the defects that the heat pump of the traditional single-stage compressor is large in heating capacity attenuation, poor in reliability, low in efficiency and the like in the low-temperature environment can be overcome, and the air source heat pump technology based on the air-injection enthalpy-increasing system is widely applied to cold areas.
However, as the temperature of the low-temperature running environment of the system is further reduced, for example, the temperature reaches below minus 30 ℃, the pressure difference between the medium-pressure refrigerant and the high-pressure refrigerant in the jet enthalpy-increasing system is not large, so that the jet quantity of the compressor is smaller, the heat exchange quantity of the economizer is smaller, and the heating capacity of the jet enthalpy-increasing heat pump system is affected. Under the condition, the air inflow of the compressor is increased through a two-stage economizer in the two-stage jet enthalpy increasing system, so that the circulating quality and flow of the refrigerant in the ultralow-temperature environment are improved. However, in the medium-high temperature environment, the two-stage economizer of the two-stage economizer does not need to be started, the first-stage economizer determines whether to start according to the temperature and the control strategy of the enhanced vapor injection system, and the service time in the ultralow temperature environment usually only occupies a small part of the total service time of the enhanced vapor injection system, so that the two-stage economizer is not started for a long time, belongs to a component with low utilization rate, and causes cost waste.
Based on this, this embodiment of the application provides an enhanced vapor injection heat pump system and air conditioner thereof, realizes the adjustment capability of two-stage economy ware through a gas-liquid separation heat transfer module and the refrigerant pipeline branch road that has flow control subassembly, can adapt to the heating performance under the different ambient temperature through the valve aperture of control flow control subassembly, compares traditional doublestage enhanced vapor injection system, can improve the utilization ratio of the subassembly of system.
Embodiments of the present application are further described below with reference to the accompanying drawings.
As shown in fig. 1, fig. 1 is a system architecture diagram of an enhanced vapor injection heat pump system provided in an embodiment of the present application, where the enhanced vapor injection heat pump system includes a compressor 1, an outdoor heat exchanger 2, an indoor heat exchanger 3, a vapor-liquid separation heat exchange component 4 and a flow adjustment component 5, the vapor-liquid separation heat exchange component 4 includes a first input end, a first output end and a second output end, an exhaust port of the compressor 1 is connected with one end of the indoor heat exchanger 3, the other end of the indoor heat exchanger 3 is connected with the first input end, the first output end is connected with one end of the outdoor heat exchanger 2, the other end of the outdoor heat exchanger 2 is connected with an air inlet of the compressor 1, the second output end is connected to the air inlet of the compressor 1 through a first branch 43, the second output end is also connected to a gas supplementing port of the compressor 1 through a second branch 44, and the flow adjustment component 5 is disposed in the first branch 43 or the second branch 44.
The refrigerant circulates in the heat pump system to realize heat exchange between the outdoor environment and the indoor environment. In the heating mode, the refrigerant absorbs heat at the outdoor heat exchanger 2, releases heat at the indoor heat exchanger 3, and is driven by the compressor 1 in the circulation process of the refrigerant, wherein the refrigerant absorbed by the outdoor heat exchanger 2 is mainly used as a gaseous refrigerant, and the refrigerant is mainly used as a liquid refrigerant and is output to the indoor heat exchanger 3 from the exhaust port of the compressor 1. In a low-temperature environment, heat exchange of the refrigerant at the outdoor heat exchanger 2 becomes difficult, and the intake air amount of the compressor 1 is insufficient, which affects the heating capacity of the heat pump system. A part of gaseous refrigerant in the refrigerant pipeline is input to the air supplementing port of the compressor 1 through the vapor injection enthalpy increasing technology, so that the air inflow of the compressor 1 is improved, and the heating capacity of the compressor 1 in a low-temperature environment is ensured. Under lower ambient temperature, the heat load requirement of the enthalpy-increasing heat pump system becomes larger, in order to ensure the heating quantity, the air inflow of the compressor 1 needs to be further increased, and the enthalpy-increasing heat pump system supplements air to the compressor 1 by arranging two stages of economizers, wherein under the condition of non-ultralow temperature environment, the first-stage economizer is controlled to be opened, the second-stage economizer is controlled to be closed, a certain air inflow is ensured, and under the condition of ultralow temperature environment, the first-stage economizer is controlled to be opened, the second-stage economizer is controlled to be opened, and the air inflow of the compressor 1 is ensured by two stages of air supplement, so that the heating performance under the ultralow temperature environment is ensured.
According to the working mode of the two-stage economizer, the two-stage economizer is in an idle state in a non-ultralow temperature environment, and the enthalpy-increasing heat pump system works in the non-ultralow temperature environment for most of the time, so that the utilization rate of the two-stage economizer is not high, and a certain cost waste is caused.
Therefore, the vapor injection enthalpy-increasing heat pump system of the embodiment of the application is provided with the vapor-liquid separation heat exchange assembly 4, under a heating mode, the refrigerant passing through the indoor heat exchanger 3 flows into the first input end of the vapor-liquid separation heat exchange assembly 4, the vapor-liquid separation heat exchange assembly 4 separates the refrigerant with vapor-liquid two phases, the liquid refrigerant flows out from the first output end to the outdoor heat exchanger 2, the gaseous refrigerant flows out from the second output end and can enter the first branch 43 and the second branch 44, the first branch 43 is connected to the air inlet of the compressor 1, the second branch 44 is connected to the air supplementing port of the compressor 1, the heating performance of the heat pump system can be adjusted by adjusting the flow of the gaseous refrigerant to the compressor 1 in the first branch 43 and the second branch 44, namely, the flow of the gaseous refrigerant to the compressor 1 is adjusted by the flow adjusting assembly 5, and the vapor injection enthalpy-increasing function is realized.
It will be appreciated that the flow regulating assembly 5 is a controllable valve opening assembly, such as an electronic expansion valve or an electronic on-off valve, for regulating the flow of refrigerant in the first and second branches 43, 44 by controlling the valve opening of the flow regulating assembly 5. Taking the flow regulating assembly 5 disposed in the first branch 43 as an example, when the flow regulating assembly 5 is closed, the gaseous refrigerant enters the air supply port of the compressor 1 through the second branch 44, and when the flow regulating assembly 5 is opened, a part of the gaseous refrigerant enters the air inlet of the compressor 1 through the first branch 43, so as to increase the air inflow of the air inlet of the compressor 1, and correspondingly, the flow of the gaseous refrigerant in the second branch 44 is reduced. For example, heating in a medium-high temperature environment (for example, the environment temperature is between-20 ℃ and 0 ℃), the second branch 44 can be only opened to supplement air, the heating requirement can be met, and the working mode of the heat pump system is equivalent to that of the primary economizer at the moment; at lower ambient temperatures (e.g., ambient temperature at-40 degrees celsius to-5 degrees celsius), the flow regulating assembly 5 is turned on, supplementing air to the low pressure side, and the dispensing ratio is controlled by the flow regulating assembly 5 to achieve optimal system capacity and energy efficiency.
In some embodiments, referring to fig. 2, the gas-liquid separation heat exchange assembly 4 is a flash tank 41, the flash tank 41 includes an input end, a liquid output end, and a gaseous output end, the input end of the flash tank 41 is a first input end, the liquid output end of the flash tank 41 is a first output end, and the gaseous output end of the flash tank 41 is a second output end.
The flash tank 41 includes an input end, a liquid output end and a gaseous output end, and the flash tank 41 is used for flash evaporation, namely, after the high-pressure saturated refrigerant enters a relatively low-pressure container, the saturated refrigerant becomes a part of saturated gaseous refrigerant and saturated liquid refrigerant under the container pressure due to the sudden pressure reduction, and the gaseous refrigerant is output from the gaseous output end of the flash tank 41, and the liquid refrigerant is output from the cold output end of the flash tank 41. By the flash evaporation effect of the flash tank 41, the refrigerant entering the outdoor heat exchanger 2 is basically liquid, the refrigerant entering the air supply port or the air inlet of the compressor 1 is basically gaseous, the heat exchange capacity of the refrigerant at the outdoor heat exchanger 2 is improved, and the effective air inflow of the compressor 1 is improved.
In some embodiments, referring to fig. 3, the gas-liquid separation heat exchange assembly 4 is a plate heat exchanger 42, the plate heat exchanger 42 includes a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet is a first input, the second inlet is connected to the first outlet through an expansion valve 45, the first outlet is a first output, and the second outlet is a second output.
The plate heat exchanger 42 has four ports, two in and two out, including a first inlet, a second inlet, a first outlet and a second outlet, and the plate heat exchanger 42 is typically formed by stacking a plurality of heat exchanging plates, each plate having a thin rectangular channel formed therebetween through which heat is exchanged. The plate heat exchanger 42 is an ideal device for liquid-liquid and liquid-vapor heat exchange. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application, long service life and the like. The first inlet of the plate heat exchanger 42 is connected to the indoor heat exchanger 3 to receive the refrigerant flowing out of the indoor heat exchanger 3, and these gas-liquid two-phase refrigerants exchange heat in the plate heat exchanger 42, and liquid refrigerant is output at the first outlet, and gaseous refrigerant is output at the second outlet. Since the plate heat exchanger 42 is of a two-in two-out structure, which corresponds to heat exchange with two sets of pipes in the inner part, the liquid refrigerant is required to be input into the second inlet, and thus in this embodiment, the second inlet is connected to the first outlet through an expansion valve 45, and part of the liquid refrigerant from the first outlet flows back to the second inlet and enters the plate heat exchanger 42. It can be seen that the plate heat exchanger 42 is similar to the gas-liquid separator 6 in practical use, and can ensure that the refrigerant entering the outdoor heat exchanger 2 is substantially liquid, and the refrigerant entering the air supply port or the air inlet of the compressor 1 is substantially gaseous, so as to improve the heat exchange capability of the refrigerant at the outdoor heat exchanger 2 and improve the effective air intake of the compressor 1.
In some embodiments, further comprising a gas-liquid separator 6, the gas-liquid separator 6 comprising a second inlet connected to the outdoor heat exchanger 2 by a third branch, the first branch 43 and the third branch merging into the second inlet, and a third outlet connected to the gas inlet of the compressor 1.
The gas-liquid separator 6 in this embodiment is mainly used for converging and outputting two parts of gaseous refrigerant to the air inlet of the compressor 1, wherein two pipelines are connected in front of the second inlet, one is the first branch 43, and the other is the pipeline connected to the outdoor heat exchanger 2, that is, the gaseous refrigerant in the first branch 43 and the gaseous refrigerant flowing out through the outdoor heat exchanger 2 are converged by the second inlet. It will be appreciated that the second inlet may be split into two inlets, one inlet being connected to the first branch 43 and the other inlet being connected to the outdoor heat exchanger 2, i.e. the third branch, with the effect of merging the gaseous refrigerant in the first branch 43 and the gaseous refrigerant in the third branch and outputting the same to the air inlet of the compressor 1. It is understood that the intake air amount of the intake port of the compressor 1 is affected by the flow rates of the gaseous refrigerant in the first branch 43 and the third branch.
In some embodiments, the four-way valve 7 is further included, the four-way valve 7 includes a first port, a second port, a third port and a fourth port, the first port is connected to the exhaust port of the compressor 1, the second port is connected to the indoor heat exchanger 3, the third port is connected to the third branch, and the fourth port is connected to the outdoor heat exchanger 2.
The four-way valve 7 is used for switching refrigerant flow paths, and in a heating mode of the heat pump system, the first port is communicated with the second port, the third port is communicated with the fourth port, and in a cooling mode, the first port is communicated with the fourth port, and the second port is communicated with the third port.
Wherein the heat pump system further comprises an outdoor throttle device 21, the outdoor throttle device 21 being arranged between the outdoor heat exchanger 2 and the first output. The heat pump system further comprises an indoor throttle device 31, the indoor throttle device 31 being arranged between the indoor heat exchanger 3 and the first input.
In some embodiments, the flow regulating assembly 5 is disposed on the first branch 43, and a valve of the flow regulating assembly 5 is used for being controlled to be opened to increase the flow of the gaseous refrigerant in the first branch 43. During the controlled adjustment of the flow regulating assembly 5, as the amount of intake air increases, the superheat of the refrigerant in the heat pump system needs to be adjusted, so that the outdoor throttle device 21 and/or the indoor throttle device 31 needs to be gradually closed while the valve of the flow regulating assembly 5 is opened.
In some embodiments, a first temperature sensor for detecting the temperature of the outdoor heat exchanger 2 and a second temperature sensor for detecting the temperature of the indoor heat exchanger 3 are also included. The first temperature sensor detects the temperature t1 of the outdoor heat exchanger 2, and the second temperature sensor detects the temperature t2 of the indoor heat exchanger 3; in one possible control method, the opening degree of the flow rate adjustment assembly 5 is determined according to the relationship between the temperature t1 and the temperature t 2. In addition to the above-described first temperature sensor and second temperature sensor, a third temperature sensor may be provided for detecting the discharge temperature t3 of the compressor 1; in one possible control method, the opening degree control process of the flow rate adjustment assembly 5 is determined according to the discharge temperature t3 of the compressor 1 and its corresponding saturation pressure.
In summary, a gas-liquid separation heat exchange assembly 4 is arranged in the heat pump system, a first output end serving as a main path outlet in the gas-liquid separation heat exchange assembly 4 is connected with the outdoor heat exchanger 2, a liquid refrigerant is sent to the outdoor heat exchanger 2 for heat exchange, a second output end serving as an auxiliary path outlet is divided into two parts, a first branch 43 is connected with an air inlet of the compressor 1, a second branch 44 is connected with an air supplementing port of the compressor 1, and a flow regulating assembly 5 is arranged in the first branch 43 or the second branch 44, so that the distribution of the gaseous refrigerant in the first branch 43 and the second branch 44 can be regulated; in medium-high temperature environments, one of the branches may be closed (e.g., the first branch 43 is provided with a flow regulating assembly 5 and the first branch 43 is closed by the flow regulating assembly 5), the system being equivalent to the heat pump system of the primary economizer; in low temperature and ultra-low temperature environments, the compressor 1 needs more air supplementing amount, so that the flow adjusting assembly 5 can be opened to adjust the air supplementing ratio of the first branch 43 and the second branch 44, thereby achieving the optimal system heating capacity and energy efficiency. Because the heat pump system of this application embodiment only needs a gas-liquid separation heat transfer subassembly, compare in prior art and carry out the scheme of tonifying qi through the two-stage economy ware, be equivalent to merging into an economy ware with the two-stage economy ware, can reduce the cost, guaranteed the heating performance of heat pump system simultaneously.
An embodiment of a second aspect of the present application provides an air conditioner, including the enhanced vapor injection heat pump system of the embodiment of the first aspect.
While the preferred embodiments of the present application have been described in detail, the present application is not limited to the above embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (12)
1. The utility model provides an enhanced vapor injection heat pump system, its characterized in that includes compressor, outdoor heat exchanger, indoor heat exchanger, gas-liquid separation heat exchange component and flow control subassembly, gas-liquid separation heat exchange component includes first input, first output and second output, the gas vent of compressor with indoor heat exchanger's one end is connected, indoor heat exchanger's the other end with first input is connected, first output with outdoor heat exchanger's one end is connected, outdoor heat exchanger's the other end is connected the air inlet of compressor, the second output is connected to through first branch road the air inlet of compressor, the second output is still connected to through the second branch road the tonifying qi mouth of compressor, flow control subassembly set up in first branch road or second branch road.
2. The heat pump system of claim 1, wherein the gas-liquid separation heat exchange assembly is a flash tank, the flash tank comprising an input, a liquid output, and a gaseous output, the input of the flash tank being the first input, the liquid output of the flash tank being the first output, the gaseous output of the flash tank being the second output.
3. The heat pump system of claim 1, wherein the gas-liquid separation heat exchange assembly is a plate heat exchanger comprising a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet being the first input, the second inlet being connected to the first outlet through an expansion valve, the first outlet being the first output, the second outlet being the second output.
4. The heat pump system of claim 1, further comprising a gas-liquid separator comprising a second inlet connected to the outdoor heat exchanger by a third branch, the first and third branches merging into the second inlet, and a third outlet connected to an air intake of the compressor.
5. The heat pump system of claim 4, further comprising a four-way valve comprising a first port, a second port, a third port, and a fourth port, the first port connected to the exhaust of the compressor, the second port connected to the indoor heat exchanger, the third port connected to the third branch, and the fourth port connected to the outdoor heat exchanger.
6. The heat pump system of claim 1, further comprising an outdoor throttling device disposed between the outdoor heat exchanger and the first output.
7. The heat pump system of claim 1, further comprising an indoor throttling device disposed between the indoor heat exchanger and the first input.
8. The heat pump system of claim 1, wherein the flow regulating assembly is disposed in the first branch, and wherein a valve of the flow regulating assembly is configured to be controlled to open to increase a flow of the gaseous refrigerant in the first branch.
9. The heat pump system of claim 8, wherein the flow regulating assembly is an electronic expansion valve or an electronic on-off valve.
10. The heat pump system of claim 1, wherein the compressor is an enhanced vapor injection compressor or a dual stage compressor.
11. The heat pump system of claim 1, further comprising a first temperature sensor for detecting a temperature of the outdoor heat exchanger and a second temperature sensor for detecting a temperature of the indoor heat exchanger.
12. An air conditioner comprising an enhanced vapor injection heat pump system according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320565557.4U CN219415044U (en) | 2023-03-21 | 2023-03-21 | Jet enthalpy-increasing heat pump system and air conditioner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202320565557.4U CN219415044U (en) | 2023-03-21 | 2023-03-21 | Jet enthalpy-increasing heat pump system and air conditioner thereof |
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| CN219415044U true CN219415044U (en) | 2023-07-25 |
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| CN202320565557.4U Active CN219415044U (en) | 2023-03-21 | 2023-03-21 | Jet enthalpy-increasing heat pump system and air conditioner thereof |
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