CN102734989A - Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator - Google Patents
Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator Download PDFInfo
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- CN102734989A CN102734989A CN2011100914818A CN201110091481A CN102734989A CN 102734989 A CN102734989 A CN 102734989A CN 2011100914818 A CN2011100914818 A CN 2011100914818A CN 201110091481 A CN201110091481 A CN 201110091481A CN 102734989 A CN102734989 A CN 102734989A
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Abstract
The invention relates to a heat pump air conditioning system and a heat pump air conditioning method for quickly discharging liquid stored in a gas-liquid separator. The heat pump air conditioning system at least comprises a compressor and a gas-liquid separator, wherein a gas outlet of the gas-liquid separator is connected with a gas inlet of a compressor, the heat pump air conditioning system is characterized by further comprising an ejector, wherein a nozzle of the ejector is connected with a gas outlet of the compressor, a pressure expansion segment of the ejector is connected with the gas inlet of the compressor, and a suction chamber of the ejector is connected with a liquid outlet of the gas-liquid separator. High pressure gas discharged from the compressor enters the ejector to form low pressure in the ejector, so that refrigerant liquid in the gas-liquid separator can be sucked in the ejector, the refrigerant liquid is mixed with refrigerant gas to form pressure expansion in the ejector, and the refrigerant liquid is dispersed in the compressor. The heat pump air conditioning system provided by the invention can quickly discharge the refrigerant liquid in the gas-liquid separator to a circulating system of an air conditioner, thereby reducing the operation cost and improving the operation efficiency of a machine set.
Description
Technical field
The present invention relates to field of air conditioning, the heat pump type air conditioning system and the method for the liquid that accumulates in particularly a kind of quick drainage gas-liquid separator.
Background technology
Air-conditioning can be divided into single cold type and pump type heat etc. according to function.The single cold type air-conditioning can only freeze, and can not heat, and is applicable to the southern area that need not warm oneself winter.Heat pump type air conditioner can freeze, heat, and is applicable to China overwhelming majority area.Wherein, heat pump air conditioner is adopted by users with the characteristics that it not only can freeze but also can heat, the scope of application is wider.As shown in Figure 1; Heat pump type air conditioning system is made up of with the indoor heat exchanger 200 that is connected with off-premises station 100 off-premises station 100, and off-premises station 100 main composition parts comprise compressor 110, gas-liquid separator 120, four-way change-over valve 130, outdoor heat exchanger 140 and throttling arrangement 150 etc.After the initial stage that starts air-conditioning or defrost finish, can gather more cold-producing medium in the gas-liquid separator 120, these cold-producing mediums need the long time just can the machine of being compressed to be drawn into to participate in kind of refrigeration cycle in the refrigeration system.Therefore, in the long time, the cold-producing medium of participating in the circulation commentaries on classics in the refrigeration system is less, and the phenomenon of fluorine will appear lacking in refrigeration system when serious, and the efficiency of air-conditioning reduces, even low-pressure failure alarm may take place.
At present, in order to solve the ubiquitous problem of above-mentioned heat pump air conditioner, the general in the industry method of increase refrigerant charge that adopts is handled, but this will increase use cost, and can not improve the efficiency of air-conditioning.
Therefore, be necessary to propose a kind of heat pump type air conditioning system, the cold-producing medium that accumulates in the drainage gas-liquid separator is fast avoided in the refrigeration system owing to lack the low voltage failure that fluorine is caused.
Summary of the invention
In the summary of the invention part, introduced the notion of a series of reduced forms, this will further explain in specific embodiment part.Summary of the invention part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to confirm technical scheme required for protection.
The heat pump type air conditioning system of the liquid that accumulates in a kind of quick drainage gas-liquid separator; Comprise off-premises station (100) and the indoor heat exchanger (200) that links to each other with said off-premises station (100); Said off-premises station (100) comprises compressor (110), gas-liquid separator (120), four-way change-over valve (130), outdoor heat exchanger (140) and throttling arrangement (150); It is characterized in that; The bottom of said gas-liquid separator (120) is provided with liquid outlet (123); Said heat pump type air conditioning system also comprises auxiliary pumping equipment (160); Said auxiliary pumping equipment (160) connects the gas outlet (111) and the air inlet (112) of the liquid outlet (123) of said gas-liquid separator (120), said compressor (110) respectively, and said auxiliary pumping equipment (160) extracts the liquid in the said gas-liquid separator (120) through the liquid outlet (123) of gas-liquid separator (120), and said liquid mixes the air inlet (112) of back through said compressor (110) and enters in the said compressor (110) with gas from said compressor (110) gas outlet (111).
According to another aspect of the present invention; Said auxiliary pumping equipment comprises injector (161); The nozzle (161a) of said injector (161) connects the gas outlet (111) of said compressor (110); The diffuser (161b) of said injector (161) connects the air inlet (112) of said compressor (110), and the suction chamber (161c) of said injector (161) connects the liquid outlet (123) of said gas-liquid separator (120).
According to another aspect of the present invention, be provided with valve (162) between the nozzle (161a) of the gas outlet (111) of said compressor (110) and said injector (161).
According to another aspect of the present invention; Be provided with check valve (163) between the diffuser (161b) of said injector (161) and the air inlet (112) of said compressor (110), so that the air inlet (112) of the diffuser (161b) of said injector (161) to said compressor (110) is unidirectional conducting state.
According to another aspect of the present invention; Be provided with check valve (164) between the suction chamber (161c) of said injector (161) and the liquid outlet (123) of said gas-liquid separator (120), so that be unidirectional conducting state between the liquid outlet (123) of said gas-liquid separator (120) to the suction chamber (161c) of said injector (161).
According to another aspect of the present invention, said valve (162) is magnetic valve or motor-driven valve.
According to another aspect of the present invention, between the air inlet (112) of the diffuser (161b) of said injector (161) and compressor (110) capillary (165) is set.
A kind of method of utilizing like the liquid that accumulates in above each described heat pump type air conditioning system drainage gas-liquid separator; It is characterized in that comprising: the degree of superheat that detects the suction temperature of said compressor (110); If the degree of superheat of said suction temperature is greater than or equal to five degree; Then start said auxiliary pumping equipment (160), make said auxiliary pumping equipment (160) extract the liquid in the said gas-liquid separator (120), and said liquid is entered in the said heat pump type air conditioning system; If when the degree of superheat of said suction temperature is shut down less than the perhaps said heat pump type air conditioning system of five degree, then close said auxiliary pumping equipment (160).
According to another aspect of the present invention, said startup or close auxiliary pumping equipment (160) through opening or valve-off is realized.
The present invention has added the auxiliary pumping equipment with injector in existing heat pump type air conditioning system; This injector is connected with the gas outlet of compressor; The gases at high pressure of discharging through the control compressor get into injector; In the inner low pressure that forms of injector, thereby the refrigerant liquid in the gas-liquid separator is sucked in the injector, diffusion in injector diffuses in the compressor thereby this refrigerant liquid mixes the back with refrigerant gas.Heat pump type air conditioning system structure of the present invention can enter the refrigerant liquid in the gas-liquid separator in the circulatory system of air-conditioning fast, thereby avoids the repeatedly injection of cold-producing medium, the running efficiency that has reduced operating cost and improved unit.
Description of drawings
Attached drawings of the present invention is used to understand the present invention at this as a part of the present invention.Embodiments of the invention and description thereof have been shown in the accompanying drawing, have been used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is the sketch map of existing heat pump type air conditioning system structure;
Fig. 2 is first sketch map according to heat pump type air conditioning system structure of the present invention;
Fig. 3 is second sketch map according to heat pump type air conditioning system structure of the present invention.
The specific embodiment
In the description hereinafter, a large amount of concrete details have been provided so that more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can need not one or more these details and be able to enforcement.In other example,, describe for technical characterictics more well known in the art for fear of obscuring with the present invention.
Through embodiment and combine accompanying drawing, technical scheme of the present invention is specified below.
As shown in Figure 2, heat pump type air conditioning system according to the present invention comprises off-premises station 100 and the indoor heat exchanger 200 that links to each other through pipeline with off-premises station 100.Off-premises station 100 comprises compressor 110, gas-liquid separator 120, four-way change-over valve 130, outdoor heat exchanger 140, throttling arrangement 150 and auxiliary pumping equipment 160; Wherein four-way change-over valve 130 first ports respect to one another are connected second port 202 of indoor heat exchanger 200 and the input of outdoor heat exchanger 140 respectively with second port; The output of outdoor heat exchanger 140 connects the input of throttling arrangement 150, and the output of throttling arrangement 150 connects first port 201 of indoor heat exchanger 200.In addition, four-way change-over valve 130 the 3rd ports respect to one another are connected the gas outlet 111 of compressor 110 and the air inlet 121 of gas-liquid separator 120 respectively with the 4th port, and the gas outlet 122 of gas-liquid separator 120 connects the air inlet 112 of compressor 110.The bottom of gas-liquid separator 120 is provided with liquid outlet 123.
As shown in Figure 3; Auxiliary pumping equipment 160 comprises injector 161; The nozzle 161a of injector 161 links to each other with the gas outlet 111 of compressor 110 through pipeline, and the pipeline between the gas outlet 111 of the nozzle 161a of injector 161 and compressor 110 is provided with valve 162.The diffuser 161b of injector 161 links to each other with the air inlet 112 of compressor 110 through pipeline; That is to say; The diffuser 161b of injector 161 is connected to through pipeline on the pipeline between the air inlet 112 of gas outlet 122 and compressor 110 of gas-liquid separator 120, and the pipeline between the air inlet 112 of the diffuser 161b of injector 161 and compressor 110 is provided with check valve 163 so that the air inlet 112 of injector 161 to compressor 110 is unidirectional conducting state.The suction chamber 161c of injector 161 is connected with the liquid outlet 123 of gas-liquid separator 120, and is provided with check valve 164 between the liquid outlet 123 of the suction chamber 161c of injector 161 and gas-liquid separator 120 so that the liquid outlet 123 of gas-liquid separator 120 to injector 161 is unidirectional conducting state.
In the foregoing description, valve 162 can adopt magnetic valve or motor-driven valve.
In the foregoing description, as shown in Figure 3, can also between the air inlet 112 of the diffuser 161b of injector 161 and compressor 110, capillary 165 be set, capillary 165 can make the amount of liquid that gets into compressor 110 be controlled in the scope of permission.In addition, it will be appreciated by persons skilled in the art that and to control the amount of liquid that gets into compressor 110 through selecting suitable injector model.
The present invention does not limit the specific embodiment of auxiliary pumping equipment 160; It will be understood by those skilled in the art that; Can also adopt other device as auxiliary pumping equipment 160; As long as can extract the refrigerant liquid that accumulates in the gas-liquid separator 120, and enter in the cooling system this refrigerant liquid just passable.
When after unit starting initial stage or defrost, oil return running, getting into the initial stage of normal operation, need the refrigerant liquid in the gas-liquid separator be drained in the refrigeration system.
Describe the method utilize the refrigerant liquid that above-mentioned heat pump type air conditioning system carries out accumulating in the quick drainage gas-liquid separator below in detail:
Detect the degree of superheat of the suction temperature of said compressor 110; If the degree of superheat of suction temperature is greater than or equal to five degree; Then start auxiliary pumping equipment 160; Make the higher pressure refrigerant gas expanding in the compressor 110 get into auxiliary pumping equipment 160, assist the liquid in the said gas-liquid separator 120 of pumping equipment 160 extractions, and said liquid is entered in the said heat pump type air conditioning system;
If when the degree of superheat of suction temperature is shut down less than the perhaps said heat pump type air conditioning system of five degree, then close auxiliary pumping equipment 160.
Said startup or when closing auxiliary pumping equipment 160 through opening or valve-off is realized.When auxiliary pumping equipment adopted the injector described in the embodiment one to realize, above-mentioned valve was a valve 162.
The present invention has added the auxiliary drain means with injector in existing heat pump air conditioner off-premises station; This injector is connected with the gas outlet of compressor; The gases at high pressure of discharging through the control compressor get into injector; In the inner low pressure that forms of injector, thereby the refrigerant liquid in the gas-liquid separator is sucked in the injector, diffusion in injector diffuses in the compressor thereby this refrigerant liquid mixes the back with refrigerant gas.Heat pump type air conditioning system structure of the present invention can enter the refrigerant liquid that accumulates in the gas-liquid separator in the circulatory system of air-conditioning fast, thereby avoids the repeatedly injection of cold-producing medium, the running efficiency that has reduced operating cost and improved heat pump type air conditioning system.
The present invention is illustrated through the foregoing description, but should be understood that, the foregoing description just is used for for example and illustrative purposes, but not is intended to the present invention is limited in the described scope of embodiments.It will be appreciated by persons skilled in the art that in addition the present invention is not limited to the foregoing description, can also make more kinds of variants and modifications according to instruction of the present invention, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by appended claims book and equivalent scope thereof.
Claims (9)
1. the heat pump type air conditioning system of the liquid that accumulates in the quick drainage gas-liquid separator; Comprise off-premises station (100) and the indoor heat exchanger (200) that links to each other with said off-premises station (100); Said off-premises station (100) comprises compressor (110), gas-liquid separator (120), four-way change-over valve (130), outdoor heat exchanger (140) and throttling arrangement (150); It is characterized in that; The bottom of said gas-liquid separator (120) is provided with liquid outlet (123); Said heat pump type air conditioning system also comprises auxiliary pumping equipment (160); Said auxiliary pumping equipment (160) connects the gas outlet (111) and the air inlet (112) of the liquid outlet (123) of said gas-liquid separator (120), said compressor (110) respectively, and said auxiliary pumping equipment (160) extracts the liquid in the said gas-liquid separator (120) through the liquid outlet (123) of gas-liquid separator (120), and said liquid mixes the air inlet (112) of back through said compressor (110) and enters in the said compressor (110) with gas from said compressor (110) gas outlet (111).
2. heat pump type air conditioning system as claimed in claim 1; It is characterized in that; Said auxiliary pumping equipment comprises injector (161); The nozzle (161a) of said injector (161) connects the gas outlet (111) of said compressor (110), and the diffuser (161b) of said injector (161) connects the air inlet (112) of said compressor (110), and the suction chamber (161c) of said injector (161) connects the liquid outlet (123) of said gas-liquid separator (120).
3. heat pump type air conditioning system as claimed in claim 2 is characterized in that, is provided with valve (162) between the gas outlet (111) of said compressor (110) and the nozzle (161a) of said injector (161).
4. heat pump type air conditioning system as claimed in claim 2; It is characterized in that; Be provided with check valve (163) between the diffuser (161b) of said injector (161) and the air inlet (112) of said compressor (110), so that the air inlet (112) of the diffuser (161b) of said injector (161) to said compressor (110) is unidirectional conducting state.
5. heat pump type air conditioning system as claimed in claim 2; It is characterized in that; Be provided with check valve (164) between the suction chamber (161c) of said injector (161) and the liquid outlet (123) of said gas-liquid separator (120), so that be unidirectional conducting state between the liquid outlet (123) of said gas-liquid separator (120) to the suction chamber (161c) of said injector (161).
6. heat pump type air conditioning system as claimed in claim 2 is characterized in that, said valve (162) is magnetic valve or motor-driven valve.
7. heat pump type air conditioning system as claimed in claim 2 is characterized in that, between the diffuser (161b) of said injector (161) and the air inlet (112) of compressor (110) capillary (165) is set.
8. the method for the liquid that accumulates in each described heat pump type air conditioning system drainage gas-liquid separator in utilization such as the claim 1～7; It is characterized in that comprising: the degree of superheat that detects the suction temperature of said compressor (110); If the degree of superheat of said suction temperature is greater than or equal to five degree; Then start said auxiliary pumping equipment (160), make said auxiliary pumping equipment (160) extract the liquid in the said gas-liquid separator (120), and said liquid is entered in the said heat pump type air conditioning system; If when the degree of superheat of said suction temperature is shut down less than the perhaps said heat pump type air conditioning system of five degree, then close said auxiliary pumping equipment (160).
9. method as claimed in claim 8 is characterized in that, said startup or close auxiliary pumping equipment (160) through open or valve-off realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091481.8A CN102734989B (en) | 2011-04-08 | 2011-04-08 | Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091481.8A CN102734989B (en) | 2011-04-08 | 2011-04-08 | Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator |
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| Publication Number | Publication Date |
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| CN102734989A true CN102734989A (en) | 2012-10-17 |
| CN102734989B CN102734989B (en) | 2014-05-07 |
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| CN201110091481.8A Active CN102734989B (en) | 2011-04-08 | 2011-04-08 | Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444450A (en) * | 2014-07-04 | 2016-03-30 | 约克广州空调冷冻设备有限公司 | Refrigeration device |
| US10131203B2 (en) | 2013-10-08 | 2018-11-20 | Denso Corporation | Refrigeration cycle device |
| CN110906580A (en) * | 2019-11-27 | 2020-03-24 | 青岛海尔空调电子有限公司 | Control method of air conditioning system |
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| US20030037905A1 (en) * | 2001-08-22 | 2003-02-27 | Kuo-Liang Weng | Air conditioning system performing composite heat transfer through change of water two phases (liquid vapor) |
| JP2003202135A (en) * | 2002-01-10 | 2003-07-18 | Sanyo Electric Co Ltd | Regenerative air-conditioning device |
| CN1692259A (en) * | 2002-11-22 | 2005-11-02 | 大金工业株式会社 | Air conditioner |
| CN201652663U (en) * | 2010-04-29 | 2010-11-24 | 四川长虹空调有限公司 | Heat recovery heat pump air conditioning system |
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Patent Citations (5)
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| US5868001A (en) * | 1997-12-05 | 1999-02-09 | Carrier Corporation | Suction accumulator with oil reservoir |
| US20030037905A1 (en) * | 2001-08-22 | 2003-02-27 | Kuo-Liang Weng | Air conditioning system performing composite heat transfer through change of water two phases (liquid vapor) |
| JP2003202135A (en) * | 2002-01-10 | 2003-07-18 | Sanyo Electric Co Ltd | Regenerative air-conditioning device |
| CN1692259A (en) * | 2002-11-22 | 2005-11-02 | 大金工业株式会社 | Air conditioner |
| CN201652663U (en) * | 2010-04-29 | 2010-11-24 | 四川长虹空调有限公司 | Heat recovery heat pump air conditioning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10131203B2 (en) | 2013-10-08 | 2018-11-20 | Denso Corporation | Refrigeration cycle device |
| CN105444450A (en) * | 2014-07-04 | 2016-03-30 | 约克广州空调冷冻设备有限公司 | Refrigeration device |
| CN110906580A (en) * | 2019-11-27 | 2020-03-24 | 青岛海尔空调电子有限公司 | Control method of air conditioning system |
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| Publication number | Publication date |
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| CN102734989B (en) | 2014-05-07 |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, Inc. Address before: Tokyo, Japan Patentee before: Hitachi Johnson Automatic Air Conditioning Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: Tokyo, Japan Patentee after: Hitachi Johnson Automatic Air Conditioning Co.,Ltd. Address before: 511685 Xuetian Management Zone, Longshan Town, Fogang County, Qingyuan City, Guangdong Province Patentee before: YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION Co.,Ltd. Effective date of registration: 20181212 Address after: Longtian Town, Fogang County, Qingyuan, Guangdong Patentee after: YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION Co.,Ltd. Address before: 511685 Xuetian Management Zone, Longshan Town, Fogang County, Qingyuan City, Guangdong Province Co-patentee before: JOHNSON CONTROLS TECHNOLOGY Co. Patentee before: YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION Co.,Ltd. |
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| TR01 | Transfer of patent right |