CN203964434U - Heat pump air conditioner - Google Patents
Heat pump air conditioner Download PDFInfo
- Publication number
- CN203964434U CN203964434U CN201420145261.8U CN201420145261U CN203964434U CN 203964434 U CN203964434 U CN 203964434U CN 201420145261 U CN201420145261 U CN 201420145261U CN 203964434 U CN203964434 U CN 203964434U
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- Prior art keywords
- compressor
- air conditioner
- heat pump
- heat exchanger
- pump air
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Abstract
The utility model discloses a kind of heat pump air conditioner, the cross valve that comprises compressor, be connected with compressor, the First Heat Exchanger being connected with cross valve and the second heat exchanger, and be connected to the throttling arrangement between First Heat Exchanger and the second heat exchanger, also comprise between the exhaust outlet and gas returning port that is connected to compressor, for promoting the by-pass collar of the compressor return air degree of superheat.The utility model is by being connected to the by-pass collar between exhaust outlet and the gas returning port of compressor, be communicated with exhaust outlet and the gas returning port of compressor, the direct bypass of high temperature and high pressure gas that the exhaust outlet of compressor is discharged is to the return-air of low-temp low-pressure, get back in compressor to produce overheated medium pressure gas, thereby when in the operating mode such as low-temperature heating or defrosting and little load cooling condition, return-air is carried out to supercharging and heat, promote the return-air degree of superheat, thereby effectively prevented that heat pump air conditioner low pressure under low-temperature heating and defrosting operating condition is too low, the phenomenon of return-air degree of superheat deficiency.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to heat pump air conditioner.
Background technology
At present, heat pump air conditioner can, because back pressure is too low, return-air degree of superheat deficiency, cause back the phenomenon of gas carrying liquid, thereby affect the service life of compressor and the reliability of system in low-temperature heating, defrosting.For this situation, there is a kind of heat pump air conditioner with defrost function, compressor is flow back to gas directly to communicate by magnetic valve, to improve system low-voltage, ensure continuity and the reliability of operation of air conditioner, but this method is more unexpected to the impact of low-pressure side on the one hand, directly exhaust is drawn back and has been caused wasting of compressor power consumption on the other hand.
In addition; under the operating mode of the little load refrigeration of part; particularly for large the number frequency-changeable compressor that limits low-limit frequency; hyperenergia when complete machine operation; cause indoor evaporating temperature too low; cause the low-temperature protection of indoor set condensation, frosting or triggering indoor set, thereby have influence on user's use., shut down while restarting for the unexpected power down of compressor meanwhile, flow back to that draught head is excessive also can affect to the compressor life-span.
Foregoing is only understood the technical solution of the utility model for auxiliary, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present utility model is to provide a kind of heat pump air conditioner, is intended to effectively prevent that heat pump air conditioner low pressure under low-temperature heating and defrosting operating condition is too low, the phenomenon of return-air degree of superheat deficiency.
For achieving the above object, the heat pump air conditioner that the utility model provides, the cross valve that comprises compressor, be connected with compressor, First Heat Exchanger and the second heat exchanger being connected with described cross valve, and be connected to the throttling arrangement between described First Heat Exchanger and the second heat exchanger, also comprise between the exhaust outlet and gas returning port that is connected to described compressor, for promoting the by-pass collar of the compressor return air degree of superheat.
Preferably, described by-pass collar comprises the first valve body and injector, the entrance of described the first valve body is connected with the exhaust outlet of described compressor, the outlet of the first valve body connects the first entrance of described injector, the second entrance of injector is connected with the second interface of described cross valve, and the outlet of injector is connected with the gas returning port of described compressor.
Preferably, the second interface of described cross valve is connected with the exhaust outlet of described compressor, the 3rd interface of cross valve connects one end of described First Heat Exchanger, the other end of First Heat Exchanger is connected with one end of described throttling arrangement, the other end of throttling arrangement connects one end of described the second heat exchanger, and the other end of the second heat exchanger is connected with the 4th interface of described cross valve.
Preferably, heat pump air conditioner also comprises the second valve body between the second entrance and the first interface of described cross valve that is connected to described injector.
Preferably, the quantity of described compressor is multiple, and the quantity of described by-pass collar is identical with the quantity of described compressor, and multiple described by-pass collars are connected between the exhaust outlet and gas returning port of corresponding compressor.
Preferably, the quantity of described compressor is multiple, and the gas returning port of multiple described compressors is connected with the outlet of described injector.
Preferably, between the gas returning port of multiple described compressors and the outlet of described injector, be connected with respectively the 3rd valve body.
Preferably, described the first valve body, the second valve body and the 3rd valve body are flow control valve, choke valve or stop valve.
Preferably, described throttling arrangement is choke valve, decompressor or capillary.
The utility model is by being connected to the by-pass collar between exhaust outlet and the gas returning port of compressor, be communicated with exhaust outlet and the gas returning port of compressor, the direct bypass of high temperature and high pressure gas that the exhaust outlet of compressor is discharged is to the return-air of low-temp low-pressure, get back in compressor to produce overheated medium pressure gas, thereby when in the operating mode such as low-temperature heating or defrosting and little load cooling condition, return-air is carried out to supercharging and heat, promote the return-air degree of superheat, thereby effectively prevented that heat pump air conditioner low pressure under low-temperature heating and defrosting operating condition is too low, the phenomenon of return-air degree of superheat deficiency.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the utility model heat pump air conditioner the first embodiment;
Fig. 2 is the schematic flow sheet of the utility model heat pump air conditioner the second embodiment;
Fig. 3 is the schematic flow sheet of the utility model heat pump air conditioner the 3rd embodiment;
Fig. 4 is the schematic flow sheet of the utility model heat pump air conditioner the 4th embodiment.
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of heat pump air conditioner.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of the utility model heat pump air conditioner one embodiment.
In one embodiment, this heat pump air conditioner comprises compressor 10, the cross valve 20 being connected with compressor 10, the First Heat Exchanger 30 being connected with cross valve 20 and the second heat exchanger 40, and be connected to the throttling arrangement 50 between First Heat Exchanger 30 and the second heat exchanger 40, in the present embodiment, this throttling arrangement 50 can adopt the device that can play throttling action as choke valve, decompressor or capillary etc.Heat pump air conditioner also comprises the by-pass collar 60 between exhaust outlet 11 and the gas returning port 12 that is connected to compressor 10, this by-pass collar 60 is communicated with exhaust outlet 11 and the gas returning port 12 of compressor 10, the direct bypass of high temperature and high pressure gas that the exhaust outlet of compressor 10 11 is discharged is to the return-air of low-temp low-pressure, get back in compressor 10 to produce overheated medium pressure gas, thus the return-air degree of superheat of lifting compressor 10.
In the present embodiment, by-pass collar 60 comprises the first valve body 61 and injector 62, wherein, the entrance of the first valve body 61 is connected with the exhaust outlet 11 of compressor 10, introduce gas returning port 12 for the high temperature and high pressure gas that exhaust outlet 11 is discharged, the outlet of the first valve body 61 connects the first entrance 621 of injector 62, this first entrance 621 is for receiving the high temperature and high pressure gas from the first valve body 61, the second entrance 622 of injector 62 is connected with the first interface 21 of cross valve 20, be connected with the return-air of system, the outlet of injector 62 is connected with the gas returning port 12 of compressor 10, the overheated medium pressure gas producing by injector 62 is got back in compressor 10 through gas returning port 12.In the present embodiment, the first valve body 61 can adopt if flow control valve, choke valve etc. are for controlling the device of flow, can certainly adopt the stop valve that only can play on-off action.
In the present embodiment, the second interface 22 of cross valve 20 is connected with the exhaust outlet 11 of compressor 10, the 3rd interface 23 of cross valve 20 connects one end of First Heat Exchanger 30, the other end of First Heat Exchanger 30 is connected with one end of throttling arrangement 50, the other end of throttling arrangement 50 connects one end of the second heat exchanger 40, and the other end of the second heat exchanger 40 is connected with the 4th interface 24 of cross valve 20.
When heat pump air conditioner is in the operating mode such as low-temperature heating or defrosting, in the time that back pressure is lower, open the first valve body 61, regulate the injection ratio of injector 62 simultaneously, the gas injection return-air of a part of HTHP of discharging with the exhaust outlet 11 of compressor 10, return-air is played supercharging and heats, promotes to the effect of the return-air degree of superheat, like this due to the effect of injector 62, reclaim high pressure gas expansion work, further promote the gas of getting back to compressor 10, the pressure ratio of compressor 10 is reduced, and greatly reduce the wasted work increase of compressor 10 or reduce wasted work.Meanwhile, in the time that ultralow temperature heating mode starts, can use identical method to draw back exhaust for heat pump air conditioner, increase fast the return-air degree of superheat, fast thermocompressor 10.
When heat pump air conditioner is during in little load cooling condition, open the first valve body 61, regulate the injection ratio of injector 62 simultaneously, compressor 10 wasted works are increased little in the situation that, unload the exhaust of a part of compressor 10, and then user's evaporation side cold medium flux is reduced, evaporating temperature promotes, thereby reduce condensation, frosting situation, improve the use impression of user's side.
When after compressor shutdown, open the first valve body 61 and 62 a period of times of injector, the gas phase that flows back to of compressor 10 is led to, impel the gas pressure balance that flows back to of compressor 10, thereby prepare for starting the next time of compressor 10.
The present embodiment is by being connected to the by-pass collar 60 between exhaust outlet 11 and the gas returning port 12 of compressor 10, be communicated with exhaust outlet 11 and the gas returning port 12 of compressor 10, the direct bypass of high temperature and high pressure gas that the exhaust outlet of compressor 10 11 is discharged is to the return-air of low-temp low-pressure, get back in compressor 10 to produce overheated medium pressure gas, thereby when in the operating mode such as low-temperature heating or defrosting and little load cooling condition, return-air is carried out to supercharging to be heated, promote the return-air degree of superheat, thereby effectively prevent that heat pump air conditioner low pressure under low-temperature heating and defrosting operating condition is too low, the phenomenon of return-air degree of superheat deficiency.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of the utility model heat pump air conditioner the second embodiment.
Based on above-described embodiment, heat pump air conditioner also comprises the second valve body 70 between the second entrance 622 and the first interface 21 of cross valve 20 of the injector 62 that is connected to by-pass collar 60, in the present embodiment, this second valve body 70 can adopt if flow control valve, choke valve etc. are for controlling the device of flow, can certainly adopt the stop valve that only can play on-off action.
In the time that the caliber of the muffler 12 of compressor is larger, as less in the bore of the second entrance 622 of injector 62, in technique, be just difficult to be connected with thicker muffler 12, if injector 62 is directly connected with muffler 12, need to dwindle by force the caliber of muffler 12, will produce adverse influence to aspects such as systematic functions like this.Therefore, the present embodiment is connected the second valve body 70 between the second entrance 622 of injector 62 and the first interface 21 of cross valve 20, ensures being connected of injector 62 and muffler 12, in addition, the second valve body 70 and the first valve body 61 combine, and can realize freely the controlling of emitted dose of injector 62.By the acting in conjunction of the first valve body 61, injector 62 and the second valve body 70, the direct bypass of high temperature and high pressure gas that the exhaust outlet of compressor 10 11 is discharged is to the return-air of low-temp low-pressure, and by return-air also injection in compressor 10, thereby play the effect that promotes the return-air degree of superheat, and the problem that can avoid heat pump air conditioner easily to unload in the time of little load cooling condition.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of the utility model heat pump air conditioner the 3rd embodiment.
Based on above-described embodiment, the quantity of the compressor 10 of heat pump air conditioner is set to multiple, and the quantity of by-pass collar 60 is identical with the quantity of this compressor 10, and multiple by-pass collar 60 is connected between the exhaust outlet 11 and gas returning port 12 of corresponding compressor 10.
Respectively the compressor corresponding with it 10 controlled by corresponding by-pass collar 60, can realize the independent control of each compressor 10, when the compressor 10 on a certain road need to increase the return-air degree of superheat, open the first valve body 61 of corresponding by-pass collar 60 on this road, control the high temperature and high pressure gas that injector 62 injection exhaust outlets 11 are discharged, thereby play the effect that promotes the return-air degree of superheat, and the problem of avoiding heat pump air conditioner easily to unload in the time of little load cooling condition.
With reference to Fig. 4, Fig. 4 is the schematic flow sheet of the utility model heat pump air conditioner the 4th embodiment.
Based on above-described embodiment, compressor 10 quantity of heat pump air conditioner are multiple, the gas returning port 12 of multiple compressors 10 is connected with the outlet of injector 62, is connected with multiple compressors 10 by same by-pass collar 60, realizes the lifting of the return-air degree of superheat to multiple compressors 10; In this implementation column, between the gas returning port 12 of multiple compressors 10 and the outlet of injector 62, be connected with respectively the 3rd valve body 80.In the time of work, in the time that the first valve body 61 is opened, as corresponding compressor 10 need to increase the return-air degree of superheat, open three valve body 80 corresponding with it, the high temperature and high pressure gas of discharging by by-pass collar 60 injection exhaust outlets 11; And all need to increase the return-air degree of superheat as multiple compressors 10, open corresponding multiple the 3rd valve bodies 80, the high temperature and high pressure gas of discharging by by-pass collar 60 injection exhaust outlets 11 simultaneously.Equally, can play the effect that promotes the return-air degree of superheat to multiple compressors 10, and the problem that can avoid heat pump air conditioner easily to unload in the time of little load cooling condition.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (8)
1. a heat pump air conditioner, the cross valve that comprises compressor, be connected with compressor, First Heat Exchanger and the second heat exchanger being connected with described cross valve, and be connected to the throttling arrangement between described First Heat Exchanger and the second heat exchanger, it is characterized in that, also comprise between the exhaust outlet and gas returning port that is connected to described compressor, for promoting the by-pass collar of the compressor return air degree of superheat.Described by-pass collar comprises the first valve body and injector, the entrance of described the first valve body is connected with the exhaust outlet of described compressor, the outlet of the first valve body connects the first entrance of described injector, the second entrance of injector is connected with the first interface of described cross valve, and the outlet of injector is connected with the gas returning port of described compressor.
2. heat pump air conditioner as claimed in claim 1, it is characterized in that, the second interface of described cross valve is connected with the exhaust outlet of described compressor, the 3rd interface of cross valve connects one end of described First Heat Exchanger, the other end of First Heat Exchanger is connected with one end of described throttling arrangement, the other end of throttling arrangement connects one end of described the second heat exchanger, and the other end of the second heat exchanger is connected with the 4th interface of described cross valve.
3. heat pump air conditioner as claimed in claim 2, is characterized in that, also comprises the second valve body between the second entrance and the first interface of described cross valve that is connected to described injector.
4. heat pump air conditioner as claimed in claim 2, it is characterized in that, the quantity of described compressor is multiple, and the quantity of described by-pass collar is identical with the quantity of described compressor, and multiple described by-pass collars are connected between the exhaust outlet and gas returning port of corresponding compressor.
5. heat pump air conditioner as claimed in claim 2, is characterized in that, the quantity of described compressor is multiple, and the gas returning port of multiple described compressors is connected with the outlet of described injector.
6. heat pump air conditioner as claimed in claim 5, is characterized in that, between the gas returning port of multiple described compressors and the outlet of described injector, is connected with respectively the 3rd valve body.
7. the heat pump air conditioner as described in claim 3 or 6, is characterized in that, described the first valve body, the second valve body and the 3rd valve body are flow control valve, choke valve or stop valve.
8. the heat pump air conditioner as described in any one in claim 1 to 6, is characterized in that, described throttling arrangement is choke valve, decompressor or capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145261.8U CN203964434U (en) | 2014-03-27 | 2014-03-27 | Heat pump air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145261.8U CN203964434U (en) | 2014-03-27 | 2014-03-27 | Heat pump air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203964434U true CN203964434U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145261.8U Expired - Fee Related CN203964434U (en) | 2014-03-27 | 2014-03-27 | Heat pump air conditioner |
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| CN (1) | CN203964434U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949210A (en) * | 2015-07-23 | 2015-09-30 | 广东美的暖通设备有限公司 | Air conditioning system, air conditioner, and control method for air conditioning system |
| CN106765524A (en) * | 2016-12-16 | 2017-05-31 | 广东美的暖通设备有限公司 | Outer machine control system, source pump and its control method |
| CN108895701A (en) * | 2018-07-19 | 2018-11-27 | 广东志高暖通设备股份有限公司 | A kind of band sprays the refrigerating heat pump circulating energy-saving device of device |
| CN108895700A (en) * | 2018-07-19 | 2018-11-27 | 广东志高暖通设备股份有限公司 | A kind of multiple injection hot pump in low temp energy conserving system with injector |
| CN109312960A (en) * | 2016-06-08 | 2019-02-05 | 株式会社电装 | Ejector-type refrigerating circulatory device |
| CN109539401A (en) * | 2018-11-13 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN109631232A (en) * | 2018-11-19 | 2019-04-16 | 青岛海尔空调电子有限公司 | A kind of control method of air-conditioning, device, air-conditioning, storage medium |
| CN110160207A (en) * | 2019-05-20 | 2019-08-23 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN111207502A (en) * | 2020-01-17 | 2020-05-29 | 广东美的暖通设备有限公司 | Operation control method, operation control device, air conditioning system, and storage medium |
| WO2021012608A1 (en) * | 2019-07-25 | 2021-01-28 | 青岛海尔空调电子有限公司 | Air conditioning system |
| CN112833575A (en) * | 2021-01-08 | 2021-05-25 | 西安交通大学 | J-T refrigeration cycle system adopting mixed working medium ejector for efficiency enhancement and control method |
| CN113218043A (en) * | 2021-04-30 | 2021-08-06 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method and device, air conditioner and storage medium |
-
2014
- 2014-03-27 CN CN201420145261.8U patent/CN203964434U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949210B (en) * | 2015-07-23 | 2018-08-31 | 广东美的暖通设备有限公司 | The control method of air-conditioning system, air conditioner and air-conditioning system |
| CN104949210A (en) * | 2015-07-23 | 2015-09-30 | 广东美的暖通设备有限公司 | Air conditioning system, air conditioner, and control method for air conditioning system |
| CN109312960A (en) * | 2016-06-08 | 2019-02-05 | 株式会社电装 | Ejector-type refrigerating circulatory device |
| CN106765524A (en) * | 2016-12-16 | 2017-05-31 | 广东美的暖通设备有限公司 | Outer machine control system, source pump and its control method |
| CN106765524B (en) * | 2016-12-16 | 2020-04-14 | 广东美的暖通设备有限公司 | Outer unit control system, heat pump unit and control method thereof |
| CN108895701A (en) * | 2018-07-19 | 2018-11-27 | 广东志高暖通设备股份有限公司 | A kind of band sprays the refrigerating heat pump circulating energy-saving device of device |
| CN108895700A (en) * | 2018-07-19 | 2018-11-27 | 广东志高暖通设备股份有限公司 | A kind of multiple injection hot pump in low temp energy conserving system with injector |
| CN109539401A (en) * | 2018-11-13 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN109539401B (en) * | 2018-11-13 | 2023-09-12 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN109631232B (en) * | 2018-11-19 | 2021-05-28 | 青岛海尔空调电子有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
| CN109631232A (en) * | 2018-11-19 | 2019-04-16 | 青岛海尔空调电子有限公司 | A kind of control method of air-conditioning, device, air-conditioning, storage medium |
| CN110160207A (en) * | 2019-05-20 | 2019-08-23 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| WO2021012608A1 (en) * | 2019-07-25 | 2021-01-28 | 青岛海尔空调电子有限公司 | Air conditioning system |
| US11754327B2 (en) | 2019-07-25 | 2023-09-12 | Qingdao Haier Air-Conditioning Electronic Co., Ltd. | Air conditioning system |
| CN111207502B (en) * | 2020-01-17 | 2021-06-15 | 广东美的暖通设备有限公司 | Operation control method, operation control device, air conditioning system, and storage medium |
| CN111207502A (en) * | 2020-01-17 | 2020-05-29 | 广东美的暖通设备有限公司 | Operation control method, operation control device, air conditioning system, and storage medium |
| CN112833575A (en) * | 2021-01-08 | 2021-05-25 | 西安交通大学 | J-T refrigeration cycle system adopting mixed working medium ejector for efficiency enhancement and control method |
| CN112833575B (en) * | 2021-01-08 | 2022-03-22 | 西安交通大学 | J-T refrigeration cycle system adopting mixed working medium ejector for efficiency enhancement and control method |
| CN113218043A (en) * | 2021-04-30 | 2021-08-06 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20210327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |