CN102538327B - Defrost method, adopt the one drag two double-compressor air-conditioning system of this Defrost method - Google Patents
Defrost method, adopt the one drag two double-compressor air-conditioning system of this Defrost method Download PDFInfo
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- CN102538327B CN102538327B CN201210024337.7A CN201210024337A CN102538327B CN 102538327 B CN102538327 B CN 102538327B CN 201210024337 A CN201210024337 A CN 201210024337A CN 102538327 B CN102538327 B CN 102538327B
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Abstract
The present invention provides a kind of Defrost method for one drag two double-compressor air-conditioning system, air conditioning system has two sub-air conditioning systems of a shared condenser, method includes: be in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is under heating mode situation a sub-air conditioning system, after another sub-air conditioning system enters defrosting from heating mode, make two sub-air conditioning systems that condenser to carry out defrosting operation together.Also provide for a kind of one drag two double-compressor air-conditioning system adopting Defrost method of the present invention, including two the independent sub-air conditioning systems sharing a condenser, control the assisting defrosting control module that two sub-air conditioning systems carry out defrosting, this module has: with the signal input part that in two sub-air conditioning systems, each defrosting sensor is connected, the signal output part in order to export commutation signal to it that cross valve respective with two sub-air conditioning systems is connected.The present invention shortens defrosting required time, reaches better defrosting effect.
Description
Technical field
The present invention relates to a kind of Defrost method for one drag two double-compressor air-conditioning system and adopt the one drag two double-compressor air-conditioning system of this Defrost method.
Background technology
In existing apparatus one drag two double-compressor air-conditioning systems technology, when arbitrary sub-air conditioning system be in heating mode need defrost time, when only another sub-air conditioning system is also at heating mode, two sub-air conditioning systems just enter defrosting together；And when another sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern, the sub-air conditioning system self being only in heating mode participates in defrosting, another sub-air conditioning system keeps original mode of operation.Compare one-to-one compressor air-conditioning system, condenser owing to arranging becomes big relatively, system defrosting difficulty is strengthened, defrosting time lengthens, and owing to the heat of single compressor offer is less, the defrosting easily causing condenser is unclean so that air conditioning system heating capacity is lower, have impact on heating effect.
Summary of the invention
For the one or more problems existed in correlation technique, it is an object of the invention to provide a kind of Defrost method for one drag two double-compressor air-conditioning system and adopt the one drag two double-compressor air-conditioning system of this Defrost method, to improve defrosting effect thus eliminating due to the undesirable defect caused that defrosts.
For achieving the above object, a kind of Defrost method for one drag two double-compressor air-conditioning system is provided according to an aspect of the present invention, this air conditioning system has two sub-air conditioning systems of a shared condenser, Defrost method includes: when a sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is in heating mode, after another sub-air conditioning system described enters defrosting from heating mode, make two sub-air conditioning systems that condenser to carry out defrosting operation together.So, the invention enables two sub-air conditioning systems together condenser to be defrosted, during defrosting, two compressors in air conditioning system work together, shorten air conditioning system defrosting required time, reach better defrosting effect.In the whole defrosting-heat in the cycle of air conditioning system, heat time accounting and promote, improve average heating capacity and the heating effect of indoor.
Preferably, Defrost method also includes: the transit time before another sub-air conditioning system described enters defrosting from heating mode in section, only makes the described sub-air conditioning system being in standby mode or refrigeration mode or dehumidification mode or air supply pattern that condenser carries out defrosting operation.Under this preferred situation, owing to namely the transit time before entering defrosting proceeds by defrosting operation in section, carry out defrosting operation together entering latter two sub-air conditioning system that defrosts, therefore significantly shorten air conditioning system defrosting required time, reach good defrosting effect.
Preferably, Defrost method also includes: when two sub-air conditioning systems are in heating mode, after one of them sub-air conditioning system enters defrosting from heating mode, makes the two sub-air conditioning system that condenser to carry out defrosting operation together.Under this preferred situation, when arbitrary sub-air conditioning system is under heating mode to need and defrosts, all adopting two sub-air conditioning systems together condenser to be defrosted, this shortens air conditioning system defrosting required time, reaches better defrosting effect.
On the other hand, the present invention also provides for a kind of one drag two double-compressor air-conditioning system adopting the aforementioned arbitrary Defrost method of the present invention, including: share two independent sub-air conditioning systems of a condenser, and the assisting defrosting defrosted in order to control the sub-air conditioning system of the two to carry out together controls module, wherein, assisting defrosting controls module to be had: the signal input part being connected with defrosting sensor respective in two sub-air conditioning systems, the signal output part in order to export commutation signal to it being connected with respective cross valve in two sub-air conditioning systems.The one drag two double-compressor air-conditioning system of the present invention and Defrost method
Preferably, one drag two double-compressor air-conditioning system air conditioner system, also include two temperature sensors, be separately mounted to the port of two liquid refrigerants of condenser.
To sum up, the one drag two double-compressor air-conditioning system of the present invention and Defrost method, it is possible to shorten defrosting time so that obtain more heat in the condenser identical time, reach better defrosting effect, improve the average heating capacity of indoor, it is thus achieved that better heating effect.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will be apparent from easy to understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of the one drag two double-compressor air-conditioning system according to the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described below.
The invention provides a kind of one drag two double-compressor air-conditioning system on the one hand, this air conditioning system has shared two sub-air conditioning systems of a condenser, this Defrost method includes: when a sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is in heating mode, after another sub-air conditioning system described enters defrosting from heating mode, make two sub-air conditioning systems that condenser to carry out defrosting operation together.
Further, Defrost method of the present invention also includes: when a sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is in heating mode, transit time before another sub-air conditioning system described enters defrosting from heating mode in section, only makes the described sub-air conditioning system being in standby mode or refrigeration mode or dehumidification mode or air supply pattern that condenser carries out defrosting operation.Due within described transit time, another sub-air conditioning system pressure imbalance described, can not start cross valve immediately switches to kind of refrigeration cycle to enter defrosting operation, and the commutation of its cross valve needs certain time (being preferably 60 seconds), and this period of commutating period is described section transit time；Comparatively speaking, it is in the sub-air conditioning system of standby mode or refrigeration mode or dehumidification mode or air supply pattern when receiving defrosting signal, owing to this sub-air conditioning system pressure is in poised state, therefore can be made directly defrosting operation.Therefore, only one of which air conditioning system is the invention enables to carry out defrosting operation in section in transit time, until it is then that two sub-air conditioning systems defrost together that defrosting terminates period after entering defrosting, thus the invention enables condenser to obtain more heat, defrosting is faster.So, Defrost method of the present invention can shorten air conditioning system defrosting required time, and defrosting is cleaner, improves the heating effect of air conditioning system.
Further, Defrost method of the present invention also includes: when two sub-air conditioning systems are in heating mode, after one of them sub-air conditioning system enters defrosting from heating mode, makes the two sub-air conditioning system that condenser to carry out defrosting operation together.Thus the present invention is capable of: when arbitrary sub-air conditioning system is under heating mode to need and defrosts (, after arbitrary sub-air conditioning system enters defrosting from heating mode), two sub-air conditioning systems are all adopted together condenser to be defrosted, this shortens air conditioning system defrosting required time, reaches better defrosting effect.
On the other hand, the present invention also provides for a kind of one drag two double-compressor air-conditioning system adopting the aforementioned arbitrary Defrost method of the present invention, referring to Fig. 1, comprising: share sub-air conditioning system 1 and the sub-air conditioning system 2 of a condenser 4, and the assisting defrosting carrying out defrosting in order to control the sub-air conditioning system of the two controls module 7.This assisting defrosting controls module 7 and can at least implement function such as: when a sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is in heating mode, after another sub-air conditioning system described enters defrosting from heating mode, make two sub-air conditioning systems that condenser to carry out defrosting operation together.In addition, this assisting defrosting controls module 7 and can also implement function such as: when a sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is in heating mode, transit time before another sub-air conditioning system described enters defrosting from heating mode in section, only makes the sub-air conditioning system being in standby mode or refrigeration mode or dehumidification mode or air supply pattern that condenser carries out defrosting operation.
With continued reference to Fig. 1, sub-air conditioning system 1 includes: vaporising device 13, condenser 4, is connected to the compressor 11 between vaporising device 13 and condenser 4, and defrost sensor 16.Sub-air conditioning system 2 includes: vaporising device 23, is connected to the compressor 21 between vaporising device 23 and condenser 4, and defrost sensor 26.The sub-air conditioning system common condenser 4 of two of which.
It also shows that on the port of the liquid refrigerant of condenser 4, be provided with temperature sensor 16,26 in Fig. 1.The defrosting temperature value detected is delivered to connection defrosting thereon and controls module 7 by temperature sensor 16,26, and when meeting defrosting condition, defrosting controls module 7 and sends defrosting signal to sub-air conditioning system 1 and sub-air conditioning system 2.Corresponding, assisting defrosting controls module 7 to be had: the signal input part being connected with the sensor 16 that defrosts in sub-air conditioning system 1, the signal output part in order to export commutation signal to it being connected with cross valve 12；With the signal input part that the sensor 26 that defrosts in sub-air conditioning system 2 is connected, the signal output part in order to export commutation signal to it being connected with cross valve 22；And with corresponding compressor, outdoor fan, indoor fan (not shown) connect signal output part, in order to according to defrosting require output control compressor, outdoor fan, indoor fan start stop signal.Commutation signal therein heats refrigerating state for what switch corresponding sub-air conditioning system.
Additionally it can further be seen from figure 1 that air conditioning system of the present invention also includes: be connected to the choke valve 15,25 between vaporising device 13,23 and condenser 4.Adopt choke valve 15,25 liquid refrigerant of corresponding sub-adjusting system mesohigh low temperature can be processed the cold-producing medium for low-temp low-pressure gas-liquid mixed, make vaporising device 13,23 play one's part to the full, reduce the energy consumption of air conditioning system.
To sum up, the one drag two double-compressor air-conditioning system of the present invention and Defrost method, it is possible to shorten defrosting time so that obtain more heat in the condenser identical time, reach better defrosting effect, improve the average heating capacity of indoor, it is thus achieved that better heating effect.In whole defrosting-heat in the cycle, the invention enables and heat time accounting and promote, improve average heating capacity and the heating effect of indoor.Further, this invention removes arbitrary subsystem single compressor defrosting time long, defrost unclean hidden danger, improves stability and the comfort of system.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the invention and equivalency.
Claims (4)
1., for a Defrost method for one drag two double-compressor air-conditioning system, described air conditioning system has two sub-air conditioning systems of a shared condenser, and described Defrost method includes:
When a sub-air conditioning system is in standby mode or refrigeration mode or dehumidification mode or air supply pattern and another sub-air conditioning system is in heating mode, after another sub-air conditioning system described enters defrosting from heating mode, make two sub-air conditioning systems that described condenser to carry out defrosting operation together
Wherein, the transit time before another sub-air conditioning system described enters defrosting from heating mode in section, only makes the described sub-air conditioning system being in standby mode or refrigeration mode or dehumidification mode or air supply pattern that described condenser carries out defrosting operation.
2. Defrost method according to claim 1, it is characterised in that also include:
When two sub-air conditioning systems are in heating mode, after one of them sub-air conditioning system enters defrosting from heating mode, make the sub-air conditioning system of the two that described condenser to carry out defrosting operation together.
3. the one drag two double-compressor air-conditioning system adopting method described in any one of claim 1-2, including: share two independent sub-air conditioning systems of a condenser, and the assisting defrosting defrosted in order to control the sub-air conditioning system of the two to carry out together controls module
Wherein, described assisting defrosting controls module to be had: the signal input part being connected with the sensor that each defrosts in two sub-air conditioning systems, the signal output part in order to export commutation signal to it that cross valve respective with two sub-air conditioning systems is connected,
Transit time before another sub-air conditioning system described enters defrosting from heating mode, described assisting defrosting controls module only made the described sub-air conditioning system being in standby mode or refrigeration mode or dehumidification mode or air supply pattern that described condenser carries out defrosting operation in section.
4. air conditioning system according to claim 3, it is characterised in that also include two temperature sensors, is separately mounted to the port of two liquid refrigerants of described condenser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210024337.7A CN102538327B (en) | 2012-02-03 | 2012-02-03 | Defrost method, adopt the one drag two double-compressor air-conditioning system of this Defrost method |
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| CN201210024337.7A CN102538327B (en) | 2012-02-03 | 2012-02-03 | Defrost method, adopt the one drag two double-compressor air-conditioning system of this Defrost method |
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| CN102538327B true CN102538327B (en) | 2016-06-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103752145B (en) * | 2014-01-17 | 2014-12-10 | 北京正拓气体科技有限公司 | Gas condensing and dewatering system and method |
| CN103912958B (en) * | 2014-04-10 | 2017-12-01 | 安徽美芝精密制造有限公司 | Control method, control device and the air-conditioning system of air-conditioning system |
| CN104457047B (en) * | 2014-11-29 | 2017-11-24 | 刘雄 | Operation of air conditioning systems |
| CN106705478B (en) * | 2016-12-20 | 2022-04-19 | 珠海格力电器股份有限公司 | Hot gas bypass enhanced vapor injection air conditioning system |
| CN112577101A (en) * | 2019-09-11 | 2021-03-30 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336692A (en) * | 1980-04-16 | 1982-06-29 | Atlantic Richfield Company | Dual source heat pump |
| CN101038097A (en) * | 2006-03-15 | 2007-09-19 | 海尔集团公司 | Refrigerating system of air-conditioning and method for controlling flow of refrigerant |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142642A (en) * | 1978-04-28 | 1979-11-07 | Mitsubishi Electric Corp | Dual purpose (cooling & heating) air-conditioning unit |
| JPH0726775B2 (en) * | 1989-01-20 | 1995-03-29 | ダイキン工業株式会社 | Dual refrigerator |
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- 2012-02-03 CN CN201210024337.7A patent/CN102538327B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336692A (en) * | 1980-04-16 | 1982-06-29 | Atlantic Richfield Company | Dual source heat pump |
| CN101038097A (en) * | 2006-03-15 | 2007-09-19 | 海尔集团公司 | Refrigerating system of air-conditioning and method for controlling flow of refrigerant |
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