CN202382480U - Air-injection enthalpy-increasing type heat pump - Google Patents
Air-injection enthalpy-increasing type heat pump Download PDFInfo
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- CN202382480U CN202382480U CN2011204665646U CN201120466564U CN202382480U CN 202382480 U CN202382480 U CN 202382480U CN 2011204665646 U CN2011204665646 U CN 2011204665646U CN 201120466564 U CN201120466564 U CN 201120466564U CN 202382480 U CN202382480 U CN 202382480U
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- regenerator
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- throttling arrangement
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Abstract
The utility model discloses an air-injection enthalpy-increasing type heat pump and belongs to the field of heat pumps. The air-injection enthalpy-increasing type heat pump comprises a compressor, a four-way valve, a first heat exchanger, a second heat exchanger, a second throttling device, a third throttling device, a third heat exchanger and a heat regenerator, wherein a first throttling device is arranged between the first heat exchanger and an undercooling inlet of the heat regenerator; a refrigerant outlet on the first heat exchanger is connected with an inlet of the first throttling device; and an outlet of the first throttling device is connected with the undercooling inlet of the heat regenerator. The air-injection enthalpy-increasing type heat pump reduces the energy loss of a system and stably saves energy.
Description
Technical field
A kind of air injection enthalpy-increasing type of the utility model heat pump belongs to art of heat pumps, particularly relates to a kind of heat pump that adopts the air injection enthalpy-increasing technology.
Background technology
At present; The air injection enthalpy-increasing technology has obtained certain promotion and application in the heat pump industry; The air injection enthalpy-increasing type heat pump of common employing air injection enthalpy-increasing technology can realize that-25 degree heat running to-43 degree, and has increased the heating capacity of compressor under severe cold environment through air injection enthalpy-increasing, and-10 degree heating capacity down improve nearly 20%; Be low to moderate simultaneously-20 and also can normally start operation when spending, also can obtain and well heat the water effect at temperature.Common air injection enthalpy-increasing type heat pump comprises by compressor, cross valve, first heat exchanger, second heat exchanger, second throttling arrangement, the 3rd throttling arrangement, the 3rd heat exchanger, regenerator and constituting; The exhaust outlet of compressor is connected with the interface D of cross valve; The interface C of cross valve links to each other with refrigerant import on first heat exchanger; The first heat exchanger refrigerant exit is connected to regenerator and crosses cold import, and regenerator is crossed cold outlet and is connected with the second throttling arrangement import, and the outlet of second throttling arrangement is connected to second heat exchanger and increases the enthalpy import; Second heat exchanger increases the enthalpy outlet and links to each other with the compressor gas supplementing opening; Regenerator is crossed cold outlet and is connected to second heat exchanger and crosses cold import, and second heat exchanger is crossed cold outlet and is connected with the 3rd throttling arrangement import, and the outlet of the 3rd throttling arrangement is connected to the 3rd heat exchanger import; The 3rd heat exchanger exit is connected with the interface E of cross valve; The interface E of cross valve links to each other with the interface S of cross valve, and the interface S of cross valve is connected to the overheated import of regenerator, and the overheated outlet of regenerator is connected with the return-air mouth of compressor.But common air injection enthalpy-increasing type heat pump is in running, and normally the refrigerant gas of HTHP is through the first heat exchanger condensation, directly cold excessively, the second throttling arrangement throttling and second heat exchanger through regenerator cross once more cold after; The refrigerant gas that becomes low-temp low-pressure is ejected into the compressor intermediate cavity; In this process, the intermediate pressure of cold-producing medium is higher, will cause the power of system to become big; Energy loss is big, and is not energy-conservation; Simultaneously; Common air injection enthalpy-increasing type heat pump generally is a refrigerant gas through the first heat exchanger condensation, again through regenerator cross cold after, flow to the 3rd throttling arrangement throttling through second heat exchanger; Like this; Will make that the pressure reduction before the 3rd throttling arrangement valve is bigger, the refrigerant flow fluctuation that gets into the 3rd heat exchanger is big, system's fluctuation of service.
The utility model content
The purpose of the utility model is to avoid the weak point of prior art, and a kind of system energy loss that can reduce is provided, energy-conservation stable a kind of air injection enthalpy-increasing type heat pump.
The purpose of the utility model reaches through following measure; A kind of air injection enthalpy-increasing type heat pump comprises by compressor, cross valve, first heat exchanger, second heat exchanger, second throttling arrangement, the 3rd throttling arrangement, the 3rd heat exchanger, regenerator and constituting; The exhaust outlet of compressor is connected with the interface D of cross valve, and the interface C of cross valve links to each other with refrigerant import on first heat exchanger, and regenerator is crossed cold outlet and is connected with the second throttling arrangement import; The outlet of second throttling arrangement is connected to second heat exchanger and increases the enthalpy import; Second heat exchanger increases enthalpy outlet and links to each other with the compressor gas supplementing opening, and regenerator is crossed cold outlet and is connected to second heat exchanger and crosses cold import, and second heat exchanger is crossed cold outlet and is connected with the 3rd throttling arrangement import; The outlet of the 3rd throttling arrangement is connected to the 3rd heat exchanger import; The 3rd heat exchanger exit is connected with the interface E of cross valve, and the interface E of cross valve links to each other with the interface S of cross valve, and the interface S of cross valve is connected to the overheated import of regenerator; The overheated outlet of regenerator is connected with the return-air mouth of compressor; Cross at first heat exchanger and regenerator the first throttle device is set between the cold import, the refrigerant exit on first heat exchanger is connected with the import of first throttle device, and the outlet of first throttle device is crossed cold import with regenerator and linked to each other.
First throttle device of the utility model and the 3rd throttling arrangement are heating power expansion valve or electric expansion valve.
Second throttling arrangement of the utility model is an electric expansion valve.
The utility model is a kind ofly can reduce system energy loss, energy-conservation stable air injection enthalpy-increasing type heat pump.
Description of drawings
Accompanying drawing 1 be the utility model the principle schematic of embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Among the figure: compressor 1, cross valve 2, first heat exchanger 3, first throttle device 4, second heat exchanger 5, second throttling arrangement 6, the 3rd throttling arrangement 7, the 3rd heat exchanger 8, regenerator 9.
Shown in accompanying drawing 1, the utility model comprises by compressor 1, cross valve 2, first heat exchanger 3, second heat exchanger 5, second throttling arrangement 6, the 3rd throttling arrangement 7, the 3rd heat exchanger 8, regenerator 9 and constituting; The exhaust outlet of compressor 1 is connected with the interface D of cross valve 2; The interface C of cross valve 2 links to each other with refrigerant import on first heat exchanger 3, and regenerator 9 is crossed cold outlet and is connected with 6 imports of second throttling arrangement, and second throttling arrangement 6 exports and is connected to second heat exchanger 5 and increases the enthalpy import; Second heat exchanger 5 increases the enthalpy outlet and links to each other with compressor 1 gas supplementing opening; Regenerator 9 is crossed cold outlet and is connected to second heat exchanger 5 and crosses cold import, and second heat exchanger 5 is crossed cold outlet and is connected with 7 imports of the 3rd throttling arrangement, and the 3rd throttling arrangement 7 exports and is connected to 8 imports of the 3rd heat exchanger; 8 outlets of the 3rd heat exchanger are connected with the interface E of cross valve 2; The interface E of cross valve 2 links to each other with the interface S of cross valve 2, and the interface S of cross valve 2 is connected to regenerator 9 overheated imports, and regenerator 9 overheated outlets are connected with the return-air mouth of compressor 1.The refrigerant exit that between first heat exchanger 3 and the cold import of regenerator 9 mistakes, is provided with on first throttle device 4, the first heat exchangers 3 is connected with 4 imports of first throttle device, and 4 outlets of first throttle device are crossed cold import with regenerator 9 and linked to each other.
Compressor 1 work, the refrigerant gas of discharge HTHP is after cross valve 2 dead electricity; High-temperature high-pressure refrigerant gas is flowed through after the 4 throttling step-downs of first throttle device through condensation in first heat exchanger 3 again, becomes medium temperature and medium pressure refrigerant air-liquid mixture; Medium temperature and medium pressure refrigerant air-liquid mixture gets in the regenerator 9 and carries out having become saturated refrigerant liquid after the heat exchange, and saturated refrigerant liquid divides two-way to flow then; One the tunnel is major loop, and another road is auxilliary loop.The refrigerant liquid of major loop gets into second heat exchanger 5; The refrigerant liquid in auxilliary loop becomes the gas-liquid mixture of low-temp low-pressure after the 6 throttling step-downs of second throttling arrangement; Also get into second heat exchanger 5 simultaneously; The two produces heat exchange in second heat exchanger 5 after, the low-temp low-pressure gas-liquid mixture in auxilliary loop becomes the gas supplementing opening that is compressed machine 1 behind the gas of low-temp low-pressure and sucks, and the refrigerant liquid of major loop becomes subcooled liquid and after 7 step-downs of the 3rd throttling arrangement, gets into the 3rd heat exchanger 8; After 8 evaporations of the 3rd heat exchanger, become low-temp low-pressure gas; The refrigerant gas of low-temp low-pressure by further gasification, is compressed machine 1 return-air mouth again and sucks behind regenerator 9, has accomplished the circulation on fluorine road.In this process, the refrigerant gas of HTHP is through 3 condensations of first heat exchanger, after the first throttle device 4 throttling step-downs of flowing through again; Become medium temperature and medium pressure refrigerant air-liquid mixture, medium temperature and medium pressure refrigerant air-liquid mixture gets in the regenerator 9 and carries out having become saturated refrigerant liquid after the heat exchange; Second throttling arrangement 6 throttling once more of flowing through of saturated refrigerant liquid, then through second heat exchanger 5 cross once more cold after, the refrigerant gas that becomes low-temp low-pressure is ejected into compressor 1 intermediate cavity; At this moment, cold-producing medium has passed through twice throttling step-down, effectively reduces the intermediate pressure of cold-producing medium; Reduced the operate power of system, energy loss is little, good energy-conserving effect; Simultaneously, system is in running, and refrigerant gas is through 3 condensations of first heat exchanger; After the 4 throttling step-downs of first throttle device, become medium temperature and medium pressure refrigerant air-liquid mixture again, medium temperature and medium pressure refrigerant air-liquid mixture gets in the regenerator 9 and carries out after the heat exchange; Become saturated refrigerant liquid, saturated refrigerant liquid is after second heat exchanger 5 is cold excessively once more, and the 3rd throttling arrangement 7 of flowing through again carries out throttling; Like this, cold-producing medium has passed through twice throttling step-down, effectively reduces the preceding pressure reduction of the 3rd throttling arrangement 7 valves; Make that the refrigerant flow fluctuation that gets into the 3rd heat exchanger 8 is little, system's operation is more stable.
Claims (3)
1. an air injection enthalpy-increasing type heat pump comprises by compressor, cross valve, first heat exchanger, second heat exchanger, second throttling arrangement, the 3rd throttling arrangement, the 3rd heat exchanger, regenerator and constituting; The exhaust outlet of compressor is connected with the interface D of cross valve; The interface C of cross valve links to each other with refrigerant import on first heat exchanger; Regenerator is crossed cold outlet and is connected with the second throttling arrangement import, and the outlet of second throttling arrangement is connected to second heat exchanger and increases the enthalpy import, and second heat exchanger increases the enthalpy outlet and links to each other with the compressor gas supplementing opening; Regenerator is crossed cold outlet and is connected to second heat exchanger and crosses cold import; Second heat exchanger is crossed cold outlet and is connected with the 3rd throttling arrangement import, and the outlet of the 3rd throttling arrangement is connected to the 3rd heat exchanger import, and the 3rd heat exchanger exit is connected with the interface E of cross valve; The interface E of cross valve links to each other with the interface S of cross valve; The interface S of cross valve is connected to the overheated import of regenerator, and the overheated outlet of regenerator is connected with the return-air mouth of compressor, it is characterized in that crossing at first heat exchanger and regenerator the first throttle device is set between the cold import; Refrigerant exit on first heat exchanger is connected with the import of first throttle device, and the outlet of first throttle device is crossed cold import with regenerator and linked to each other.
2. a kind of air injection enthalpy-increasing type heat pump according to claim 1 is characterized in that first throttle device and the 3rd throttling arrangement are heating power expansion valve or electric expansion valve.
3. a kind of air injection enthalpy-increasing type heat pump according to claim 1 is characterized in that second throttling arrangement is an electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204665646U CN202382480U (en) | 2011-11-22 | 2011-11-22 | Air-injection enthalpy-increasing type heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204665646U CN202382480U (en) | 2011-11-22 | 2011-11-22 | Air-injection enthalpy-increasing type heat pump |
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| Publication Number | Publication Date |
|---|---|
| CN202382480U true CN202382480U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204665646U Expired - Lifetime CN202382480U (en) | 2011-11-22 | 2011-11-22 | Air-injection enthalpy-increasing type heat pump |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008823A (en) * | 2012-12-31 | 2015-10-28 | 特灵国际有限公司 | Heat pump water heater |
| CN105627686A (en) * | 2014-11-28 | 2016-06-01 | 青岛海尔智能技术研发有限公司 | Refrigeration control method for refrigerating plant |
| CN106440460A (en) * | 2016-10-26 | 2017-02-22 | 广东高而美制冷设备有限公司 | Air conditioner heat pump supercooling system and working method thereof |
| CN106440459A (en) * | 2016-10-26 | 2017-02-22 | 广东高而美制冷设备有限公司 | Auxiliary heating enthalpy-increasing heat pump system and working mode thereof |
| CN110274409A (en) * | 2019-06-24 | 2019-09-24 | 珠海格力电器股份有限公司 | Air-conditioning system |
-
2011
- 2011-11-22 CN CN2011204665646U patent/CN202382480U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008823A (en) * | 2012-12-31 | 2015-10-28 | 特灵国际有限公司 | Heat pump water heater |
| CN105008823B (en) * | 2012-12-31 | 2017-11-03 | 特灵国际有限公司 | Teat pump boiler |
| US9885504B2 (en) | 2012-12-31 | 2018-02-06 | Trane International Inc. | Heat pump with water heating |
| CN105627686A (en) * | 2014-11-28 | 2016-06-01 | 青岛海尔智能技术研发有限公司 | Refrigeration control method for refrigerating plant |
| CN106440460A (en) * | 2016-10-26 | 2017-02-22 | 广东高而美制冷设备有限公司 | Air conditioner heat pump supercooling system and working method thereof |
| CN106440459A (en) * | 2016-10-26 | 2017-02-22 | 广东高而美制冷设备有限公司 | Auxiliary heating enthalpy-increasing heat pump system and working mode thereof |
| CN106440460B (en) * | 2016-10-26 | 2022-04-26 | 广东高而美制冷设备有限公司 | Supercooling system of air conditioner heat pump and working method of supercooling system |
| CN110274409A (en) * | 2019-06-24 | 2019-09-24 | 珠海格力电器股份有限公司 | Air-conditioning system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |