CN201126288Y - Air conditioning system capable of producing heat without intermittence when defrosting - Google Patents
Air conditioning system capable of producing heat without intermittence when defrosting Download PDFInfo
- Publication number
- CN201126288Y CN201126288Y CNU2007201759560U CN200720175956U CN201126288Y CN 201126288 Y CN201126288 Y CN 201126288Y CN U2007201759560 U CNU2007201759560 U CN U2007201759560U CN 200720175956 U CN200720175956 U CN 200720175956U CN 201126288 Y CN201126288 Y CN 201126288Y
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- defrosting
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Abstract
The utility model relates to an air conditioning system for continuous heat supplying while defrosting. The system comprises a compressor, a four-way valve, an outdoor heat exchanger, an electric expanding valve, and an indoor heat exchanger; the system also comprises a bypassing loop, one end is connected to the pipe path between the compressor and the four-way valve; another end is connected to the pipe path between the outdoor heat exchanger and the electric expanding valve. The bypassing loop is arranged with a control valve and a flow-limiting device. The air conditioning system of the utility model never needs to stop supplying heat while defrosting, which can retain the indoor temperature and enhance the amenity for the users.
Description
Technical field
The utility model relates to the air-conditioner field, the air-conditioning system of continuously heating when particularly relating to a kind of the defrosting.
Background technology
Air-conditioner is one of our the most frequently used household electrical appliances, and air-conditioner utilizes the compressor compresses refrigerant, realizes refrigeration, heat-production functions by refrigerant heat absorption, heat release.In outdoor temperature lower winter, for keeping indoor temperature, the air conditioner heat-production operation, the refrigerant of low-temp low-pressure absorbs heat at the outdoor heat converter of air-conditioner, make the organism temperature of outdoor heat converter be lower than outdoor temperature and frosting easily, influence the heat exchanger effectiveness of outdoor heat converter, cause the air conditioner heat-production poor effect.
Prior art need stop the air conditioner heat-production operation when defrosting.Consulting Fig. 1, is existing air-conditioning system structural representation, comprises compressor 1, cross valve 2, outdoor heat converter 3, electric expansion valve 4, reaches indoor heat converter 5.In the time of need defrosting to outdoor heat converter 3, compressor 1 is out of service, cross valve 2 commutations, air-conditioner is converted to refrigeration mode by heating mode, after one minute, compressor 1 reruns, and the refrigerant of the HTHP after compressed machine 1 compression enters indoor heat converter 5 absorption refrigerations by electric expansion valve 4 again after outdoor heat converter 3 heat releases.Outdoor heat converter 3 makes the frost melts on the body because of the refrigerant heat release organism temperature of HTHP raises.After 6-12 minute, the frost melts of outdoor heat converter 3 is finished, and compressor 1 is out of service once more, cross valve 2 commutations, and air-conditioner is converted to heating mode again by refrigeration mode, and after one minute, compressor 1 restarts once more, and air-conditioner recovers heating operation.
In the above-mentioned air-conditioner defrost process, air-conditioner must transfer refrigerating operaton to by heating operation, causes user indoor temperature to descend, and influences user's comfort.Air-conditioner is in above-mentioned defrost process, and compressor 1 restarts after need repeatedly stopping, and cross valve 2 also needs repeatedly commutation, and this will directly influence the stable operation and the service life of air-conditioner.
The utility model content
The air-conditioning system of continuously heating when technical problem to be solved in the utility model provides a kind of the defrosting, this air-conditioning system need not be interrupted heating operation when defrosting, can keep indoor temperature, to improve user's comfort.
The air-conditioning system of the utility model is a kind of when defrosting continuously heating, comprise compressor, cross valve, outdoor heat converter, electric expansion valve, reach indoor heat converter, also comprise: bypass circulation, the one end is connected on the pipeline between described compressor and the described cross valve, and the other end is connected on the pipeline between described outdoor heat converter and the described electric expansion valve; Described bypass circulation is provided with control valve.
Preferably, described bypass circulation is provided with current-limiting apparatus.
Preferably, described current-limiting apparatus is the capillary that is serially connected on the described bypass circulation.
Preferably, described current-limiting apparatus is a magnetic valve, and the control end of described magnetic valve connects the controller of described air-conditioning system.
Preferably, described control valve is a magnetic valve, and the control end of described magnetic valve connects the controller of described air-conditioning system.
Preferably, control valve is a control valve, and the control end of described control valve connects the controller of described air-conditioning system.
Compared with prior art, the utlity model has following advantage:
The high temperature and high pressure gas of the bypass circulation that the utilization of the utility model air-conditioning system adds after with compressor compresses directly sent into outdoor heat exchanger and defrosted.In defrost process, compressor is not shut down, and cross valve does not commutate; air-conditioning system is carried out heating operation incessantly; stop heating operation with respect to air-conditioner in the prior art and finish defrosting, the utility model can guarantee the heating effect of air-conditioner greatly, improves user's comfort.The utility model can effectively reduce the number of times of compressor shutdown, startup, and the commutating frequency of cross valve, helps the stable operation and the service life of air-conditioner.
Description of drawings
Fig. 1 is existing air-conditioning system structural representation;
The air-conditioning system structural representation of continuously heating when Fig. 2 provides defrosting for the utility model first embodiment;
The air-conditioning system structural representation of continuously heating when Fig. 3 provides defrosting for the utility model second embodiment;
The air-conditioning system structural representation of continuously heating when Fig. 4 provides defrosting for the utility model the 3rd embodiment.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 2, the air-conditioning system structural representation of continuously heating when providing defrosting for the utility model first embodiment comprises compressor 1, cross valve 2, outdoor heat converter 3, electric expansion valve 4, indoor heat converter 5, reaches bypass circulation 6.Bypass circulation 6 one ends are connected on the pipeline between compressor 1 and the cross valve 2, and the other end is connected on the pipeline between outdoor heat converter 5 and the electric expansion valve 4.Bypass circulation 6 is provided with control valve 61.Control valve 61 is a normally off.
During the air-conditioning system heating operation, compressor 1 sucks the gas coolant of low-temp low-pressure, and after compression, refrigerant becomes the saturated gas of HTHP, sends into indoor heat converter 5 through cross valve 2; The saturated gas of HTHP is outwards emitted heat at indoor heat converter 5, after turning cold but, it is constant to keep-up pressure, and is condensed into the liquid of cryogenic high pressure, discharge from indoor heat converter 5, be obstructed during through electric expansion valve 4, gas pressure descends, and the partially liq refrigerant becomes gas, absorb gasification latent heat in the conversion, the refrigerant self-temperature also reduces, and becomes the damp steam of low-temp low-pressure, and the inlet chamber outer heat-exchanger 3 again.In outdoor heat converter 3, the damp steam of low-temp low-pressure is under the constant situation of pressure, and the heat in the absorption chamber outer air turns cold outdoor heat converter 3 surrounding airs, airborne water vapour condenses on the body of outdoor heat converter 3 easily, causes the frosting scene.
When needing defrosting, the transmission of air-conditioning system is opened control instruction to control valve 61, control valve 61 is opened, the HTHP cold media gas part that compressor 1 is discharged enters indoor heat converter 5 through cross valve 4 and continues to heat, another part is through bypass circulation 6 direct inlet chamber outer heat-exchangers 3, the cold media gas of HTHP can improve the temperature of outdoor heat converter 3 bodies in the short time, and frosting is melted rapidly.After finishing defrosting, the transmission closing control of air-conditioning system is instructed control valve 61, and control valve 61 is closed, and the HTHP cold media gas that compressor 1 is discharged all enters indoor heat converter 5 through cross valve 4, and air-conditioning system continues heating operation.
High temperature and high pressure gas after the bypass circulation 6 that the utilization of the utility model air-conditioning system adds compresses compressor 1 is directly sent into outdoor heat exchanger 3 and is defrosted.In defrost process, compressor 1 is not shut down, and cross valve 2 does not commutate, and air-conditioning system is carried out heating operation incessantly, can guarantee the heating effect of air-conditioner greatly, improves user's comfort.The utility model effectively reduces the number of times that compressor 1 is shut down, started, and the commutating frequency of cross valve 2, helps the stable operation and the service life of air-conditioner.
The utility model control valve 61 can be magnetic valve, and the control end of magnetic valve connects the controller of air-conditioning system.For preventing that in defrost process the high temperature and high pressure gas major part that compressor 1 is got rid of influences heating effect by bypass circulation 6 direct inlet chamber outer heat-exchangers 3, the utility model can be contacted on bypass circulation 6 current-limiting apparatus is set.Current-limiting apparatus is a capillary 63, and the thickness of capillary 63 is provided with according to the use power of air-conditioner.
With reference to Fig. 3, the air-conditioning system structural representation of continuously heating when providing defrosting for the utility model second embodiment comprises compressor 1, cross valve 2, outdoor heat converter 3, electric expansion valve 4, indoor heat converter 5, reaches bypass circulation 6.Bypass circulation 6 one ends are connected on the pipeline between compressor 1 and the cross valve 2, and the other end is connected on the pipeline between outdoor heat converter 5 and the electric expansion valve 4.Polyphone is provided with magnetic valve 62 and capillary 63 on the bypass circulation 6.Magnetic valve 62 is a normally off.
In the defrost process, the transmission of air-conditioning system is opened control instruction to magnetic valve 62, magnetic valve 62 is opened, because bypass circulation 6 is provided with capillary 63, gas through bypass circulation 6 direct inlet chamber outer heat-exchangers 3 only is the sub-fraction that compressor 1 is discharged gas, major part enters indoor heat converter 5 through cross valve 4 and continues to heat, and does not influence the heating effect of air-conditioning system substantially.
The utility model control valve 61 also can be control valve, and the control end of control valve connects the controller of air-conditioning system.Open different angles according to the regulating command that the air-conditioning system controller sends, with the gas flow of control by bypass circulation 6.
With reference to Fig. 4, the air-conditioning system structural representation of continuously heating when providing defrosting for the utility model the 3rd embodiment comprises compressor 1, cross valve 2, outdoor heat converter 3, electric expansion valve 4, indoor heat converter 5, reaches bypass circulation 6.Bypass circulation 6 one ends are connected on the pipeline between compressor 1 and the cross valve 2, and the other end is connected on the pipeline between outdoor heat converter 5 and the electric expansion valve 4.Bypass circulation 6 is provided with control valve 64.Control valve 64 is a normally off.
In the defrost process, the transmission regulating control command of air-conditioning system is to control valve 64, control valve 64 is opened the angle of setting, the HTHP cold media gas part that compressor 1 is discharged enters indoor heat converter 5 through cross valve 4 and continues to heat, and another part defrosts through bypass circulation 6 direct inlet chamber outer heat-exchangers 3.The air-conditioning system controller can be according to defrosting effect, and the angle that control and regulation valve 64 increases or reduces to open is adjusted the gas flow by bypass circulation 6, and then the control defrosting time.
Certainly, the utility model also can be provided with magnetic valve 62 and control valve 64 simultaneously on bypass circulation 6, and magnetic valve 62 and control valve 64 are normally off.The utility model also can be provided with capillary 63 and control valve 64 simultaneously on bypass circulation 6, control valve 64 is a normally off.
More than the air-conditioning system of continuously heating during to a kind of defrosting the provided by the utility model, be described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1, the air-conditioning system of continuously heating during a kind of the defrosting comprises compressor, cross valve, outdoor heat converter, electric expansion valve, and indoor heat converter, it is characterized in that, also comprises:
Bypass circulation, one end are connected on the pipeline between described compressor and the described cross valve, and the other end is connected on the pipeline between described outdoor heat converter and the described electric expansion valve; Described bypass circulation is provided with control valve.
2, air-conditioning system as claimed in claim 1 is characterized in that, described bypass circulation is provided with current-limiting apparatus.
3, air-conditioning system as claimed in claim 2 is characterized in that, described current-limiting apparatus is the capillary that is serially connected on the described bypass circulation.
4, air-conditioning system as claimed in claim 2 is characterized in that, described current-limiting apparatus is a magnetic valve, and the control end of described magnetic valve connects the controller of described air-conditioning system.
5, air-conditioning system as claimed in claim 1 is characterized in that, described control valve is a magnetic valve, and the control end of described magnetic valve connects the controller of described air-conditioning system.
6, air-conditioning system as claimed in claim 1 is characterized in that, control valve is a control valve, and the control end of described control valve connects the controller of described air-conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201759560U CN201126288Y (en) | 2007-09-13 | 2007-09-13 | Air conditioning system capable of producing heat without intermittence when defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201759560U CN201126288Y (en) | 2007-09-13 | 2007-09-13 | Air conditioning system capable of producing heat without intermittence when defrosting |
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| Publication Number | Publication Date |
|---|---|
| CN201126288Y true CN201126288Y (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201759560U Expired - Lifetime CN201126288Y (en) | 2007-09-13 | 2007-09-13 | Air conditioning system capable of producing heat without intermittence when defrosting |
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| CN (1) | CN201126288Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388279A (en) * | 2009-04-09 | 2012-03-21 | 开利公司 | Refrigerant vapor compression system with hot gas bypass |
| CN102645064A (en) * | 2012-05-24 | 2012-08-22 | 钟学斌 | Defrosting method and device of air source heat pump set |
| CN103245152A (en) * | 2013-05-20 | 2013-08-14 | 杭州三花微通道换热器有限公司 | Heat pump system |
| CN103245153A (en) * | 2013-05-20 | 2013-08-14 | 杭州三花微通道换热器有限公司 | Heat pump system |
| CN103486783A (en) * | 2013-09-26 | 2014-01-01 | 广东美的制冷设备有限公司 | Air conditioner system and defrosting control method thereof |
| CN104596032A (en) * | 2014-12-31 | 2015-05-06 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method thereof |
| CN104654685A (en) * | 2013-11-19 | 2015-05-27 | 美的集团股份有限公司 | Defrosting control method and device for heat pump system |
| CN105485988A (en) * | 2016-01-14 | 2016-04-13 | 广东美的制冷设备有限公司 | Air conditioner system and defrosting control method thereof |
| CN107192012A (en) * | 2017-05-03 | 2017-09-22 | 青岛海尔空调电子有限公司 | Splitting heat pump air conditioner and the method for delaying its frosting |
| CN108759168A (en) * | 2018-06-20 | 2018-11-06 | 广东美的暖通设备有限公司 | Heat pump system, defrosting method and device |
| CN109442788A (en) * | 2018-10-08 | 2019-03-08 | 珠海格力电器股份有限公司 | The defrosting method and air-conditioning of air-conditioning |
| CN110736205A (en) * | 2019-09-25 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110736210A (en) * | 2019-09-26 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110736212A (en) * | 2019-09-27 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN111288694A (en) * | 2019-10-23 | 2020-06-16 | 珠海格力电器股份有限公司 | Air conditioner capable of continuously heating and control method thereof |
-
2007
- 2007-09-13 CN CNU2007201759560U patent/CN201126288Y/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388279A (en) * | 2009-04-09 | 2012-03-21 | 开利公司 | Refrigerant vapor compression system with hot gas bypass |
| CN102645064A (en) * | 2012-05-24 | 2012-08-22 | 钟学斌 | Defrosting method and device of air source heat pump set |
| CN103245152A (en) * | 2013-05-20 | 2013-08-14 | 杭州三花微通道换热器有限公司 | Heat pump system |
| CN103245153A (en) * | 2013-05-20 | 2013-08-14 | 杭州三花微通道换热器有限公司 | Heat pump system |
| CN103245153B (en) * | 2013-05-20 | 2016-04-06 | 杭州三花微通道换热器有限公司 | Heat pump |
| CN103486783A (en) * | 2013-09-26 | 2014-01-01 | 广东美的制冷设备有限公司 | Air conditioner system and defrosting control method thereof |
| CN103486783B (en) * | 2013-09-26 | 2015-09-30 | 广东美的制冷设备有限公司 | Air-conditioner system and defrosting control method thereof |
| CN104654685B (en) * | 2013-11-19 | 2017-06-06 | 美的集团股份有限公司 | The defrosting control method and device of heat pump |
| CN104654685A (en) * | 2013-11-19 | 2015-05-27 | 美的集团股份有限公司 | Defrosting control method and device for heat pump system |
| CN104596032A (en) * | 2014-12-31 | 2015-05-06 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method thereof |
| CN104596032B (en) * | 2014-12-31 | 2017-08-29 | 广东美的制冷设备有限公司 | Air conditioner and its defrosting control method |
| CN105485988A (en) * | 2016-01-14 | 2016-04-13 | 广东美的制冷设备有限公司 | Air conditioner system and defrosting control method thereof |
| CN107192012A (en) * | 2017-05-03 | 2017-09-22 | 青岛海尔空调电子有限公司 | Splitting heat pump air conditioner and the method for delaying its frosting |
| CN107192012B (en) * | 2017-05-03 | 2020-07-07 | 青岛海尔空调电子有限公司 | Split heat pump air conditioner and method for delaying frosting of split heat pump air conditioner |
| CN108759168A (en) * | 2018-06-20 | 2018-11-06 | 广东美的暖通设备有限公司 | Heat pump system, defrosting method and device |
| CN109442788A (en) * | 2018-10-08 | 2019-03-08 | 珠海格力电器股份有限公司 | The defrosting method and air-conditioning of air-conditioning |
| CN109442788B (en) * | 2018-10-08 | 2021-02-23 | 珠海格力电器股份有限公司 | Defrosting method of air conditioner and air conditioner |
| CN110736205A (en) * | 2019-09-25 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110736210A (en) * | 2019-09-26 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110736212A (en) * | 2019-09-27 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110736212B (en) * | 2019-09-27 | 2022-04-19 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN111288694A (en) * | 2019-10-23 | 2020-06-16 | 珠海格力电器股份有限公司 | Air conditioner capable of continuously heating and control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |
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| CX01 | Expiry of patent term |