CN1737444A - Air conditioner divisional defrosting control method - Google Patents
Air conditioner divisional defrosting control method Download PDFInfo
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- CN1737444A CN1737444A CN 200510035468 CN200510035468A CN1737444A CN 1737444 A CN1737444 A CN 1737444A CN 200510035468 CN200510035468 CN 200510035468 CN 200510035468 A CN200510035468 A CN 200510035468A CN 1737444 A CN1737444 A CN 1737444A
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Abstract
This invention relates to a defrosting method, which comprises the following steps: a, testing the temperature Tcoil by the defrosting temperature-sensing box in the outdoor heat exchange coil; b, testing the defrosting outdoor temperature Tair; c, making sure the environmental temperature factor C according to the Tair in step b, when the Tair<0 Deg.C, C=0.8; Tair>=0 Deg.C, C=0.6; d, setting different defrosting temperature switching codes q to different area; e, when Tcoil<=CTair-q, and running 3 minutes, the controlling system will operate the defrosting mode. Said invention uses the heat exchange coil temperature, environmental temperature and the preset factor to decide whether defrosting, so it can improve the working efficiency and property of the heat pump assembly.
Description
Technical field
The present invention relates to a kind of heat pump air conditioner defrosting subregion function control method.
Background technology
China is with a vast territory, and the weather conditions of different regions are rather different, particularly winter, because the cold wave activity, the north and south temperature difference is very big, and heat pump also differs greatly in the situation of different regions operation, for example, be higher than the above South China of 7 degree for a long time in environment temperature, the heat supply in winter phase lacks, calorific requirement is little, general frost-free during unit operation, heating performance coefficient height, and the Huanghe valley and to the north of, winter temperature is lower, and the duration is longer, and calorific requirement is big.And now, the defrosting time of the Air-Cooled Heat Pump Unit of most of producers still adopts unified fixed value, and the problem of bringing thus is also more.Should use different defrosting schemes at different zones.For example for the zone of easy frosting, the interval of defrosting can be smaller, and the time of each defrosting can be shorter.For the region that is difficult for frosting, the time of each defrosting is longer relatively.
Summary of the invention
Technical problem to be solved by this invention is, a kind of situation that influences of considering the variation of different regions environmental working condition to frosting is provided, set different defrosting control parameters in different regions, reach the thoroughly method of problem that under adverse circumstances, defrosts not to avoid many unnecessary defrosting actions.
Technical problem to be solved by this invention is achieved by the following technical solution: a kind of air conditioner divisional defrosting control method, it comprises the steps:
A. record temperature T coil by defrosting temperature-sensitive bag on the outdoor heat exchanger coil pipe;
B. measure defrosting outdoor environment temperature Tair;
C. the environment temperature Tair that records according to step b determines environment temperature coefficient C, wherein, when Tair＜0 ℃, C=0.8, during Tair 〉=0 ℃, C=0.6;
D. set the defrosting temperature and switch dial-up q, different dial-ups are set in different regions;
E. satisfy relational expression Tcoil≤CTair-q when between Tcoil, the Tair, and after turning round continuously 3 minutes, control system enters defrosting mode.
Because the coefficient that the present invention sets by measuring chamber external heat exchanger coil temperature, environment temperature and base area zone position determines whether to carry out defrost operation, method is simple, effectively avoid the many unnecessary defrosting actions and the halfway problem that under adverse circumstances, defrosts, thereby improved source pump operating efficiency and performance.
Description of drawings
Fig. 1 is an air-conditioner defrosting control method flow chart of the present invention;
The specific embodiment
Referring to Fig. 1, a kind of air conditioner divisional defrosting control method, it comprises the steps:
10. record temperature T coil by defrosting temperature-sensitive bag on the outdoor heat exchanger coil pipe;
11. measure defrosting outdoor environment temperature Tair;
12. according to the environment temperature Tair that step b records, determine environment temperature coefficient C, wherein, when Tair＜0 ℃, C=0.8, during Tair 〉=0 ℃, C=0.6;
Switch dial-up q 13. set the defrosting temperature, different dial-ups are set in different regions;
14. satisfy relational expression Tcoil≤CTair-q when between Tcoil, the Tair, and after turning round continuously 3 minutes, control system enters defrosting mode.
Above-mentioned air conditioner divisional defrosting control method also comprises a frosting environment partiting step, is about to China each department and is divided into light frost environment, heavy white environment, general frosting environment and low temperature frosting environment respectively.1. light frost environment: it is not obvious or can not cause bigger influence to heat supply that for example Chengdu, Chongqing, Guilin resemble the source pump frosting of using this class climatological region in the ordinary course of things.2. heavy white environment: China Changsha is the extremely disadvantageous city of heat pump heat supply in winter, and main cause is relative humidity big (＞81%), and mean temperature low (＜5 ℃), secondly is that the Guiyang environment is also unfavorable to heat pump heat supply.3. general frosting environment: source pump in winter heating coil pipe surfaces, city such as China Hangzhou, Wuhan, Shanghai, Hefei, Nanchang, Nanjing all can frosting, is in the frosting zone.4. low temperature frosting environment: though it is lower to resemble northern city temperature such as China Jinan, Beijing, relative humidity is also lower, so the frosting situation is not too serious on the contrary, the environment temperature that is embodied in initial frosting is low, and frosting speed is less.The defrosting temperature switch dial-up q light frost environment, heavy white environment, general frosting environment and low temperature frosting environment respectively value be 12,8,10 and 16.Unit is provided with different correction factors to the different operating zone, makes unit have certain applicability in different regions, but whether the q value that sets rationally also need further be proved by test.
Because the coefficient that the present invention sets by measuring chamber external heat exchanger coil temperature, environment temperature and base area zone position determines whether to carry out defrost operation, method is simple, effectively avoid the many unnecessary defrosting actions and the halfway problem that under adverse circumstances, defrosts, thereby improved source pump operating efficiency and performance.
The present invention also has some other distortion or improvement.If those skilled in the art are subjected to the change or the improvement of the conspicuous unsubstantiality that inspiration of the present invention makes, all belong to the protection domain of claims of the present invention.
Claims (3)
1, a kind of air conditioner divisional defrosting control method is characterized in that, comprises the steps:
A. record temperature T coil by defrosting temperature-sensitive bag on the outdoor heat exchanger coil pipe;
B. measure defrosting outdoor environment temperature Tair;
C. the environment temperature Tair that records according to step b determines environment temperature coefficient C, wherein, when Tair＜0 ℃, C=0.8, during Tair 〉=0 ℃, C=0.6;
D. set the defrosting temperature and switch dial-up q, different dial-ups are set in different regions;
E. satisfy relational expression Tcoil≤CTair-q when between Tcoil, the Tair, and after turning round continuously 3 minutes, control system enters defrosting mode.
2, air conditioner divisional defrosting control method according to claim 1 is characterized in that, it also comprises a frosting environment partiting step, is about to China each department and is divided into light frost environment, heavy white environment, general frosting environment and low temperature frosting environment respectively.
3, air conditioner divisional defrosting control method according to claim 2 is characterized in that, described defrosting temperature switch dial-up q light frost environment, heavy white environment, general frosting environment and low temperature frosting environment respectively value be 12,8,10 and 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100354685A CN1320326C (en) | 2005-06-24 | 2005-06-24 | Air conditioner divisional defrosting control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100354685A CN1320326C (en) | 2005-06-24 | 2005-06-24 | Air conditioner divisional defrosting control method |
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| Publication Number | Publication Date |
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| CN1737444A true CN1737444A (en) | 2006-02-22 |
| CN1320326C CN1320326C (en) | 2007-06-06 |
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| CNB2005100354685A Active CN1320326C (en) | 2005-06-24 | 2005-06-24 | Air conditioner divisional defrosting control method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012138B (en) * | 2009-09-04 | 2012-11-07 | 海尔集团公司 | Air conditioner and method for controlling same to defrost |
| CN103175353A (en) * | 2011-12-23 | 2013-06-26 | 同方人工环境有限公司 | Defrosting control method suitable for air source heat pump water heater |
| CN103411290A (en) * | 2013-08-30 | 2013-11-27 | 海信（山东）空调有限公司 | Air conditioner and defrosting control method thereof |
| CN104567148A (en) * | 2014-12-23 | 2015-04-29 | 珠海格力电器股份有限公司 | Air conditioning defrost method and device |
| CN105091442A (en) * | 2015-08-31 | 2015-11-25 | 宁波奥克斯电气有限公司 | Intelligent defrosting method for multi-split air conditioner |
| CN105698452A (en) * | 2016-02-29 | 2016-06-22 | 广东万和电气有限公司 | Control method used for defrosting mode withdrawing of heat pump and heat pump using control method |
| CN106196422A (en) * | 2016-06-28 | 2016-12-07 | 青岛海尔空调器有限总公司 | The frostless control method of liquid desiccant air conditioning |
| CN106288560A (en) * | 2016-08-15 | 2017-01-04 | 深圳市派沃新能源科技股份有限公司 | A kind of net for air-source heat pump units Defrost method |
| CN106403148A (en) * | 2016-08-30 | 2017-02-15 | 珠海格力电器股份有限公司 | Control method and system for starting defrosting mode through heat pump system |
| CN107178939A (en) * | 2017-05-17 | 2017-09-19 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107202399A (en) * | 2017-05-17 | 2017-09-26 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107990481A (en) * | 2017-10-27 | 2018-05-04 | 珠海格力电器股份有限公司 | Air-conditioner defrosting control method and device |
| CN110173940A (en) * | 2019-05-24 | 2019-08-27 | 百尔制冷(无锡)有限公司 | A method of control aerial cooler starting defrosting |
| CN110749041A (en) * | 2019-11-01 | 2020-02-04 | 宁波奥克斯电气股份有限公司 | Operation control method and system of air conditioner, air conditioner and storage medium |
| CN111189268A (en) * | 2020-01-14 | 2020-05-22 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104236004B (en) * | 2013-06-19 | 2017-02-15 | 广东美的制冷设备有限公司 | Defrosting control method and device for heat pump system |
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| US4563877A (en) * | 1984-06-12 | 1986-01-14 | Borg-Warner Corporation | Control system and method for defrosting the outdoor coil of a heat pump |
| US5257506A (en) * | 1991-03-22 | 1993-11-02 | Carrier Corporation | Defrost control |
| JP4156097B2 (en) * | 1998-09-29 | 2008-09-24 | 東芝キヤリア株式会社 | Air conditioner |
| CN1215295C (en) * | 2001-04-18 | 2005-08-17 | 广东科龙电器股份有限公司 | Air conditioner and its defrosting method |
| KR100484802B1 (en) * | 2002-07-03 | 2005-04-22 | 엘지전자 주식회사 | Frost removing method of air conditioner hanving two compressor |
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- 2005-06-24 CN CNB2005100354685A patent/CN1320326C/en active Active
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012138B (en) * | 2009-09-04 | 2012-11-07 | 海尔集团公司 | Air conditioner and method for controlling same to defrost |
| CN103175353A (en) * | 2011-12-23 | 2013-06-26 | 同方人工环境有限公司 | Defrosting control method suitable for air source heat pump water heater |
| CN103175353B (en) * | 2011-12-23 | 2015-08-19 | 同方人工环境有限公司 | A kind of defrosting control method being applicable to air source hot pump water heater |
| CN103411290A (en) * | 2013-08-30 | 2013-11-27 | 海信（山东）空调有限公司 | Air conditioner and defrosting control method thereof |
| CN103411290B (en) * | 2013-08-30 | 2016-04-06 | 海信（山东）空调有限公司 | Air-conditioner and defrosting control method thereof |
| CN104567148A (en) * | 2014-12-23 | 2015-04-29 | 珠海格力电器股份有限公司 | Air conditioning defrost method and device |
| CN105091442B (en) * | 2015-08-31 | 2017-11-07 | 宁波奥克斯电气股份有限公司 | The intelligent defrosting method of multi-connected machine |
| CN105091442A (en) * | 2015-08-31 | 2015-11-25 | 宁波奥克斯电气有限公司 | Intelligent defrosting method for multi-split air conditioner |
| CN105698452B (en) * | 2016-02-29 | 2018-07-06 | 广东万和电气有限公司 | The control method for exiting defrosting mode for heat pump and the heat pump using its method |
| CN105698452A (en) * | 2016-02-29 | 2016-06-22 | 广东万和电气有限公司 | Control method used for defrosting mode withdrawing of heat pump and heat pump using control method |
| CN106196422A (en) * | 2016-06-28 | 2016-12-07 | 青岛海尔空调器有限总公司 | The frostless control method of liquid desiccant air conditioning |
| CN106288560A (en) * | 2016-08-15 | 2017-01-04 | 深圳市派沃新能源科技股份有限公司 | A kind of net for air-source heat pump units Defrost method |
| CN106403148A (en) * | 2016-08-30 | 2017-02-15 | 珠海格力电器股份有限公司 | Control method and system for starting defrosting mode through heat pump system |
| CN107178939A (en) * | 2017-05-17 | 2017-09-19 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107202399A (en) * | 2017-05-17 | 2017-09-26 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107990481A (en) * | 2017-10-27 | 2018-05-04 | 珠海格力电器股份有限公司 | Air-conditioner defrosting control method and device |
| CN110173940A (en) * | 2019-05-24 | 2019-08-27 | 百尔制冷(无锡)有限公司 | A method of control aerial cooler starting defrosting |
| CN110749041A (en) * | 2019-11-01 | 2020-02-04 | 宁波奥克斯电气股份有限公司 | Operation control method and system of air conditioner, air conditioner and storage medium |
| CN110749041B (en) * | 2019-11-01 | 2021-07-06 | 宁波奥克斯电气股份有限公司 | Operation control method and system of air conditioner, air conditioner and storage medium |
| CN111189268A (en) * | 2020-01-14 | 2020-05-22 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
| CN111189268B (en) * | 2020-01-14 | 2021-07-06 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
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