CN2670854Y - Frostless high-efficient air-cooled heat pump set - Google Patents
Frostless high-efficient air-cooled heat pump set Download PDFInfo
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- CN2670854Y CN2670854Y CN 200320114089 CN200320114089U CN2670854Y CN 2670854 Y CN2670854 Y CN 2670854Y CN 200320114089 CN200320114089 CN 200320114089 CN 200320114089 U CN200320114089 U CN 200320114089U CN 2670854 Y CN2670854 Y CN 2670854Y
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Abstract
The utility model relates to a frostless high-efficient air-cooled heat pump set, comprising a compressor 1, a four-way valve 2, a heat regenerator 3, a dry filter 4, a liquid viewing glass 5, a heat exchanger 7, a liquid reservoir 8, a finned heat exchanger 11, liquid distributing devices 15 and 23, a liquid separating capillary 16 and air-liquid mixers 17 and 22, etc. The upper side of the heat exchanger 11 is provided with a blower 12 capable of aspirating and blowing air, and the air blowing space is provided with a heating device 13. The pipeline connecting the liquid viewing glass 5 and an expansion valve 6 divides one path communicated with the liquid inlets of expansion valves 20 and 21. The pipeline connecting the expansion valve 6 and the heat exchanger 7 is connected with the liquid reservoir 8 only having a single connection pipe and of the transversely placed tank body. Both ends of a one-way valve 9 are connected in parallel with an electromagnetic valve 10. An electromagnetic valve 18 is connected in series with a hot air by-pass valve 19 to form a hot air by-pass pipeline, the other end of the electromagnetic valve 18 is communicated with the pipeline connecting the compressor 1 and the four-way valve 2, and the other end of the hot air by-pass valve 19 is connected with the two gas-liquid mixers 17 and 22.
Description
Technical field
The utility model relates to a kind of air-cooled heat pump central air-conditioning unit.
Background technology
Air-cooled heat pump heats circulation time in the winter time, and the air of certain humidity is cooled.When environment temperature is lower, when the finned heat exchanger surface temperature was lower than the air dew point temperature, condensation appearred in the finned heat exchanger surface.When the finned heat exchanger temperature was lower than 0 ℃, condensation became frost.Owing to the formation and the growth of frost, reduced the circulation area of air, increased air flow resistance and heat transfer resistance, heat pump cycle is worsened, so that can not move.In order to keep heat pump cycle and heating capacity, must carry out the periodicity defrosting.General air-conditioner defrosting all is to turn to by cross valve, that is carries out refrigerating operaton.This Defrost mode defrosting speed is slow, and the difficult outflow of defrosting water, and defrosting is not thorough, causes the unit defrosing cycle short, causes the water temperature frequent fluctuation, has a strong impact on the heating effect of unit.
Simultaneously, because the structure of Air-Cooled Heat Pump Unit is unreasonable, its operating efficiency also has much room for improvement.
The utility model content
The technical problems to be solved in the utility model is, deficiency at the prior art existence, design a kind of frostless high-efficiency air cooling source pump, the frequent cycle defrosting of its relative conventional heat pump has been accelerated blowing out of defrosting and defrosting water and can have been reduced the formation of revealing frost, making unit at-10 ℃--also can run well under 13 ℃ the outdoor temperature, the improvement by structure simultaneously significantly improves the efficient of unit.
Technical solution of the present utility model is, described frostless high-efficiency air cooling source pump comprises compressor, cross valve, regenerator, device for drying and filtering, liquid-sighting glass, expansion valve (I), heat exchanger, liquid reservoir, check valve (II), magnetic valve (I), finned heat exchanger, blower fan, heater, check valve (I), liquid distribution trough, the separatory capillary, the vapour-liquid blender, magnetic valve (II), hot gas bypass valve, expansion valve (II, III), its design feature is, the steam drain of described compressor links to each other with the port A of cross valve, the port D of this cross valve links to each other with the gaseous state refrigeration working medium port of described finned heat exchanger, this finned heat exchanger top is provided with the blower fan that can just change air draught and counter-rotating blowing, and heater is housed in the blowing space of itself and blower fan, the liquid refrigeration working medium port of described finned heat exchanger divide two-way and wherein one the tunnel be connected with the end of check valve I and another road by separatory capillary and two liquid distribution trough I, the separatory hole of II is communicated with, the other end of described check valve I is successively through the port E of regenerator, F, device for drying and filtering, liquid-sighting glass, expansion valve I links to each other with the liquid refrigeration working medium port of heat exchanger, the steam state refrigeration working medium port of described heat exchanger is successively through the port B of described cross valve, the port G of C and regenerator, H links to each other with the air entry of described compressor, on described liquid-sighting glass and pipeline that expansion valve I is connected, tell one tunnel and two expansion valve II, the inlet of III is connected, described two expansion valve II, the liquid outlet of III is respectively through the vapour-liquid blender of correspondence and corresponding described two liquid distribution trough I, the inlet opening of II is connected, on the pipeline that described expansion valve I and heat exchanger link to each other, tell two-way and wherein one the tunnel be connected that to have only single adapter and tank body be horizontal liquid reservoir and another road is connected with the pipeline that check valve I links to each other with regenerator through check valve II, the two ends of described check valve II are parallel with electromagnetic valve I, and electromagnetic valve II is composed in series the hot-gas bypass pipeline with hot gas bypass valve and the described electromagnetic valve II other end is connected and the other end and described two vapour-liquid blender I of described hot gas bypass valve with the pipeline that described compressor links to each other with cross valve, II links to each other.
Make below in conjunction with accompanying drawing and to further specify.
Referring to Fig. 1, the utility model comprises compressor 1, cross valve 2, regenerator 3, device for drying and filtering 4, liquid-sighting glass 5, expansion valve (I) 6, heat exchanger 7, liquid reservoir 8, check valve (II) 9, magnetic valve (I) 10, finned heat exchanger 11, blower fan 12, heater 13, check valve (I) 14, liquid distribution trough 15,23, separatory capillary 16, vapour- liquid blender 17,22, magnetic valve (II) 18, hot gas bypass valve 19, expansion valve (II, III) 20,21, its design feature is, the steam drain of described compressor 1 links to each other with the port A of cross valve 2, the port D of this cross valve 2 links to each other with the gaseous state refrigeration working medium port of described finned heat exchanger 11, this finned heat exchanger top is provided with the blower fan 12 that can just change air draught and counter-rotating blowing and in the blowing space of itself and blower fan 12 heater 13 is housed, the liquid refrigeration working medium port of described finned heat exchanger 11 divide two-way and wherein one the tunnel be connected with an end of check valve (I) 14 and another road by separatory capillary 16 and two liquid distribution trough (I, II) 15,23 separatory hole is communicated with, the other end of described check valve (I) 14 is successively through the port E of regenerator 3, F, device for drying and filtering 4, liquid-sighting glass 5, expansion valve (I) 6 links to each other with the steam state refrigeration working medium port of heat exchanger 7, the steam state refrigeration working medium port of described heat exchanger 7 is successively through the port B of described cross valve 2, the port G of C and regenerator 3, H links to each other with the air entry of described compressor 1, on described liquid-sighting glass 5 and pipeline that expansion valve (I) 6 links to each other, tell one tunnel and two expansion valve (II, III) 20,21 inlet is connected, described two expansion (II, III) 20,21 liquid outlet is respectively through the vapour-liquid blender 22 of correspondence, 17 with corresponding described two liquid distribution trough (I, II) 15,23 inlet opening is connected, on the pipeline that described expansion valve (I) 6 and heat exchanger 7 links to each other, tell two-way and wherein one the tunnel be connected that to have only single adapter and tank body be horizontal liquid reservoir 8 and another road is connected with the pipeline that regenerator 3 links to each other through check valve (II) 9 same check valve (I) 14, the two ends of described check valve (II) 9 are parallel with magnetic valve (I) 10, and magnetic valve (II) 18 is composed in series the hot-gas bypass pipeline with hot gas bypass valve 19 and described magnetic valve (II) 18 other ends are connected and the other end and described two vapour-liquid blenders (I of described hot gas bypass valve 19 with the pipeline that cross valve 2 links to each other with described compressor 1, II) 17,22 link to each other.
This unit refrigerating operaton process in normal summer is: (discharging the gaseous working medium of HTHP)-(blower fan 12 is just changeing air draught to cross valve 2-finned heat exchanger 11 to compressor 1, air and refrigeration working medium produce heat exchange, refrigeration working medium condensation heat release becomes highly pressurised liquid)-check valve 14-regenerator 3 (liquid refrigerant is cold excessively)-device for drying and filtering 4-liquid-sighting glass 5-expansion valve 6 (throttling step-downs, working medium becomes the low-temp low-pressure liquid-vapor mixture)-(refrigeration working medium and air conditioner water produce heat exchange to heat exchanger 7, refrigeration working medium absorbs the heat of air conditioner water, becomes the low-temp low-pressure gas)-cross valve 2-regenerator 3 (the low-temp low-pressure gaseous working medium is by overheated)-compressor 1 (sucking the overheated gaseous working medium of low-temp low-pressure).Air conditioner water is constantly imported in the heat exchanger by its pump in the air-conditioning system, and cryogenic refrigeration working medium is taken away heat makes it change low-temperature cold water into, offers user's end, realizes the air-conditioned room refrigeration.
The normal winter heating of this unit running is: compressor 1 (discharging the gaseous working medium of HTHP)-(refrigeration working medium and air conditioner water produce heat exchange to cross valve 2-heat exchanger 7, the refrigeration working medium release heat is given air conditioner water, be condensed into highly pressurised liquid)-check valve 9-regenerator 3 (liquid refrigerant is cold excessively)-device for drying and filtering 4-liquid-sighting glass 5-expansion valve 20 (throttling step-downs, working medium becomes the low-temp low-pressure liquid-vapor mixture)-vapour-liquid blender 17,22-liquid distribution trough 15,23-separatory capillary 16-finned heat exchanger 11 (blower fan 12 counter-rotating blowings, whether heater 13 is opened and can be decided according to ambient temperature situations, refrigeration working medium and air produce heat exchange, and the heat of refrigeration working medium absorption air becomes the gas of low-temp low-pressure)-cross valve 2-regenerator 3 (the low-temp low-pressure gaseous working medium is by overheated)-compressor 1 (sucking the overheated gaseous working medium of low-temp low-pressure).Air conditioner water is constantly imported in the heat exchanger by its pump in the air-conditioning system, is heated by the high temperature refrigeration working medium, changes hot water into, offers user's end, realizes that air-conditioned room heats.
This unit is in the winter time during heating operation, when environment temperature lower, when the low pressure of unit was lower than the opening pressure of hot vapour by-passing valve setting, a part of HTHP gaseous working medium that compressor 1 is discharged directly entered in the finned heat exchanger 11 through magnetic valve 18, hot gas bypass valve 19, vapour- liquid blender 17,22, liquid distribution trough 15,23 and separatory capillary 16.
This unit is in the winter time during heating operation, and when environment temperature was lower than 0 ℃, finned heat exchanger might frosting, unit defrosting running is: cross valve 2 commutations, and unit changes refrigerating operaton over to by heating operation, and magnetic valve 10 is opened simultaneously, heater 13 is opened, blower fan 12 counter-rotating blowings.
General heat pump, no matter kind of refrigeration cycle still heats circulation, and the blower fan of finned heat exchanger is air draught type, and promptly finned heat exchanger is in the suction side of blower fan.During winter heating, condensation is trapped on the fin, is held by wind, is difficult for flowing out.When the finned heat exchanger surface temperature was lower than 0 ℃, condensation was just become frost.
For overcoming the above drawback of conventional heat pump, this frostless heat pump has adopted following measure:
1, set about from the structure of blower fan, it both can just be changeed, also can reverse, and no matter be just to change or reverse, its air quantity remains unchanged substantially.Blower fan just changes during the unit refrigeration, is air draught type.Blower fan counter-rotating when heating is bleed type, just heats circulation time, and finned heat exchanger is in the air outlet of blower fan, because wind speed is big, wind-force is strong, the finned heat exchanger of the vertical in addition or assembling of tilting, and condensation very easily is blown, and fin does not have dew substantially." few revealing then lacked frost, and nothing is revealed then frostless ".
2, in the blowing space of finned heat exchanger and blower fan, the heater of certain power is installed, the air themperature that blower fan is blown out improves 3 ℃-5 ℃, thereby has reduced the relative humidity and the dew-point temperature of air, makes it be difficult for dewfall.
3, do not have to reveal, frostless be the frequent cycle defrosting of relative conventional heat pump, after heat pump turns round the long duration, in case tied frost, when defrosting is turned round, blower fan still is in the blowing state, and starts heater, has accelerated blowing out of defrosting and defrosting water, cooperate the structure (this point is explanation separately in the back) of the magnetic valve 10 and the liquid reservoir 8 of this unit simultaneously, heat pump is entered very soon normally heat state.
Therefore, this frostless heat pump is at the heater starting run duration, because the temperature of air improves, relative humidity descends, and the heat pump application field is expanded to the north of China the Yellow River.In outdoor temperature at-10 ℃--also can run well about 13 ℃.The heater of this unit and traditional air-cooled heat pump are in defrosting or to stop the auxiliary heater in heat pump when running be diverse mode of heating and heating purposes.The heater of this unit is to blow into the air heat of finned heat exchanger, thereby can improve the heat pump heating capacity, and reduces relative air humidity, reduces the formation of revealing frost.The auxiliary heater of conventional heat pump is to hot water or blows into indoor wind and heat that this moment, heat pump did not have heating capacity, obtained heat by auxiliary heater fully.
This unit has efficiently been taked following measure for guaranteeing it:
1, as previously mentioned, blower fan 12 blowing of when the unit heating operation, reversing, and can be according to environment temperature heater 13, reduce as far as possible the formation of finned heat exchanger frost layer and fast, thoroughly, defrosting neatly, improve the heating operation ability of unit, widened the range of application of unit.
2, traditional Air-Cooled Heat Pump Unit separatory capillary is directly to be connected on the heat exchanger tube of finned heat exchanger, unit is when refrigeration like this, the refrigeration working medium liquid of finned heat exchanger condensation is to flow out by separatory capillary and liquid distribution trough, because the separatory capillary is generally grown (being generally about 1000mm) and caliber little (being generally φ 6mm), (resistance generally can reach 0.5kg/cm to resistance greatly when refrigeration working medium liquid was flowed through
2), the resistance of adding liquid distribution trough (is generally 0.5kg/cm
2), so this structure has increased the resistance that refrigeration working medium flows, significantly reduced the refrigerating capacity of unit.And this unit has increased a liquid house steward on finned heat exchanger, the separatory capillary passes in the heat exchanger tube that the liquid house steward inserts finned heat exchanger, during the unit refrigeration, the refrigeration working medium liquid of condensation is to flow out by heat exchanger and the intercapillary gap of separatory influent house steward again in the finned heat exchanger, owing to no longer pass through separatory capillary and liquid distribution trough, so resistance significantly reduces, improved the refrigerating capacity of unit.
3, designed efficient, the safe hot-gas bypass structure of a cover.Traditional Air-Cooled Heat Pump Unit does not generally have hot gas by-pass system, the large-scale unit that has has hot gas by-pass system, but generally all be to be connected between the air inlet pipe of the blast pipe of compressor and vapour liquid separator, and this unit has been told one road hot-gas bypass pipeline on the blast pipe of compressor 1, by magnetic valve 18, hot gas bypass valve 19 inserts vapour-liquid blender 17, on 22, again through liquid distribution trough 15,23, separatory capillary 16 directly enters in the finned heat exchanger 11, can solve so not only that unit low pressure under the lower situation of environment temperature is low to be made outside unit can not normally move, can also solve the problem of unit oil return difficulty, simultaneously owing to improved the evaporating pressure of system, improve the work operating mode of unit, and then improved the operational efficiency of unit.
4, designed one and overlapped liquid separation structure efficiently.Traditional source pump generally has only one to heat expansion valve or the shared expansion valve of cooling and warming, and adopted two to heat expansion valve at this unit, the benefit of bringing like this has: because the top of finned heat exchanger is near blower fan, wind speed and air quantity are big away from the bottom of blower fan, but refrigerant amount is few because of potential difference reason top, and the bottom is more, so the top heat-transfer effect of finned heat exchanger is good, and the heat-transfer effect of its underpart is poor, when only adopting one to heat expansion valve, the refrigerant amount and the air quantity that enter the finned heat exchanger upper and lower all change, severe exacerbation heat-transfer effect, and can't adjust.And in this device owing to adopted two to heat expansion valve, so can make finned heat exchanger be operated in optimum state according to the refrigerant amount of air quantity distribution situation adjustment finned heat exchanger upper and lower in running.
5, the structure and the connection of liquid reservoir are improved.The liquid reservoir of traditional source pump generally all is an one-in-and-one-out, and liquid reservoir be connected on the refrigeration expansion valve before (being high-pressure section), and the liquid reservoir in this unit is to have only a pipe to advance, and be connected on the back of refrigeration expansion valve, adopt the benefit of this structure and connection to be: to be connected on low-pressure section owing to liquid reservoir when unit freezes, so do not have liquid in the liquid reservoir, and when unit heats running, liquid reservoir is in high-pressure section again, so refrigerant liquid unnecessary in the unit can be stored, so adopt this liquid reservoir can reduce the charging amount of whole system refrigeration; Because liquid reservoir is stored a certain amount of refrigerant liquid when unit heats, during defrosting, unit changes refrigerating operaton over to, evaporation in the rapid inflow heat exchanger of liquid reservoir inner refrigerant liquid, so just can improve the evaporating pressure of unit, and then the pressure at expulsion and the delivery temperature of raising unit, so can improve the defrosting speed of unit.
6, designed a defrosting magnetic valve 10, when unit enters defrosting, magnetic valve 10 is opened, the liquid refrigerant of condensation in finned heat exchanger is directly entered in the heat exchanger by magnetic valve 10 to be evaporated, needn't pass through regenerator 3, device for drying and filtering 4, liquid-sighting glass 5 and expansion valve 6 again, so just improve the speed of defrosting, shorten the time of defrosting, make unit return to the state of heating rapidly, improved the heating efficiency of unit.
7, designed a regenerator.Be provided with a regenerator in this unit, the benefit of bringing like this has: liquid refrigerant is cold excessively before can making expansion valve, the gas superheat that compressor sucks.Liquid refrigerant before the expansion valve has certain degree of supercooling can improve the refrigerating capacity of unit, and the liquid refrigerant that can avoid entering expansion valve influences the work of expansion valve because the resistance of the preceding pipeline of valve produces flash gas.The gas that compressor sucks has certain degree of superheat can improve the operational safety performance of compressor; Can temporarily store the refrigerant liquid that a part of end evaporates, avoid liquid refrigerant to enter in the compressor and damage compressor; The spill port structure of reasonable disposition makes lubricating oil get back in the compressor with swiftly flowing gas, guarantees compressor lubrication.
As known from the above, the utility model is a kind of frostless high-efficiency air cooling source pump, and finned heat exchanger is not dewfall, frost-free substantially, its application region is expanded to the north of the Yellow River, the cooling and warming efficient height of unit operation.
Description of drawings
Fig. 1 is a kind of embodiment overall structure figure of the present utility model.In the drawings:
The 1-compressor, 2-cross valve, 3-regenerator
The 4-device for drying and filtering, the 5-liquid-sighting glass, 6,20, the 21-expansion valve,
The 7-heat exchanger, the 8-liquid reservoir, 9, the 14-check valve,
10,18-magnetic valve 11-finned heat exchanger, the 12-blower fan,
The 13-heater, 15, the 23-liquid distribution trough, 16-separatory capillary,
17,22-vapour-liquid blender, the 19-hot gas bypass valve,
The specific embodiment
According to Fig. 1 and said structure and Air-Cooled Heat Pump Unit, be IMR150 type Air-Cooled Heat Pump Unit, each member is installed in the casing, heater 13 adopts electric heater unit, adopt Italian semiclosed piston compressor W-60-187, unit name refrigerating capacity 150KW, name heats quantitative change 160KW, be equipped with Saginomiya cross valve CHV-5001, height pressure switch DNSD606M, the U.S. this sloping blue expansion valve OVE-55CP100 and DVE-20CP100, Danfoss magnetic valve, check (non-return) valve, hot gas bypass valve, LG vapour-liquid blender.Unit with volume is little, in light weight, COP is high, function is complete, safe and reliable to operation be characteristics.
Claims (1)
1, a kind of frostless high-efficiency air cooling source pump, comprise compressor (1), cross valve (2), regenerator (3), device for drying and filtering (4), liquid-sighting glass (5), expansion valve (6), heat exchanger (7), liquid reservoir (8), check valve (9), magnetic valve (10), finned heat exchanger (11), blower fan (12), heater (13), check valve (14), liquid distribution trough (15,23), separatory capillary (16), vapour-liquid blender (17,22), magnetic valve (18), hot gas bypass valve (19), expansion valve (20,21), it is characterized in that, the steam drain of described compressor (1) links to each other with the port A of cross valve (2), the port D of this cross valve (2) links to each other with the gaseous state refrigeration working medium port of described finned heat exchanger (11), this finned heat exchanger top is provided with the blower fan (12) that can just change air draught and counter-rotating blowing and in the blowing space of itself and blower fan (12) heater (13) is housed, the liquid refrigeration working medium port of described finned heat exchanger (11) divide two-way and wherein one the tunnel be connected with an end of check valve (14) and another road by separatory capillary (16) and two liquid distribution troughs (15,23) separatory hole is communicated with, the other end of described check valve (14) is successively through the port E of regenerator (3), F, device for drying and filtering (4), liquid-sighting glass (5), expansion valve (6) links to each other with the liquid refrigeration working medium port of heat exchanger (7), the steam state refrigeration working medium port of described heat exchanger (7) is successively through the port B of described cross valve (2), the port G of C and regenerator (3), H links to each other with the air entry of described compressor (1), on described liquid-sighting glass (5) and pipeline that expansion valve (6) links to each other, tell one tunnel and two expansion valves (20,21) inlet is connected, described two expand (20,21) liquid outlet is respectively through the vapour-liquid blender (22 of correspondence, 17) with corresponding described two liquid distribution troughs (15,23) inlet opening is connected, on the pipeline that described expansion valve (6) and heat exchanger (7) link to each other, tell two-way and wherein one the tunnel be connected that to have only single adapter and tank body be horizontal liquid reservoir (8) and another road is connected with the pipeline that regenerator (3) links to each other through the same check valve of check valve (9) (14), the two ends of described check valve (9) are parallel with magnetic valve (10), and magnetic valve (18) is composed in series the hot-gas bypass pipeline with hot gas bypass valve (19) and described magnetic valve (18) other end is connected and the other end and described two vapour-liquid blenders (17 of described hot gas bypass valve (19) with the pipeline that cross valve (2) links to each other with described compressor (1), 22) link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114089 CN2670854Y (en) | 2003-11-11 | 2003-11-11 | Frostless high-efficient air-cooled heat pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114089 CN2670854Y (en) | 2003-11-11 | 2003-11-11 | Frostless high-efficient air-cooled heat pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670854Y true CN2670854Y (en) | 2005-01-12 |
Family
ID=34475139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114089 Expired - Lifetime CN2670854Y (en) | 2003-11-11 | 2003-11-11 | Frostless high-efficient air-cooled heat pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670854Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004302B (en) * | 2006-01-25 | 2011-05-04 | 武汉凯龙技术开发有限责任公司 | Frostless air-source heat pump |
| CN101598476B (en) * | 2008-06-03 | 2013-04-24 | 海尔集团公司 | Cooling medium circulation system of air conditioner |
| CN108716789A (en) * | 2018-06-20 | 2018-10-30 | 珠海格力电器股份有限公司 | Heat exchanger, liquid separation control device, air conditioner and control method of air conditioner |
| CN109084444A (en) * | 2018-07-26 | 2018-12-25 | 四川长虹空调有限公司 | A kind of method and air-conditioning inhibiting condenser for outdoor unit of air conditioner frosting |
| CN110836479A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836450A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836468A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836481A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836473A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN112984710A (en) * | 2021-02-01 | 2021-06-18 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner and air conditioner |
-
2003
- 2003-11-11 CN CN 200320114089 patent/CN2670854Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004302B (en) * | 2006-01-25 | 2011-05-04 | 武汉凯龙技术开发有限责任公司 | Frostless air-source heat pump |
| CN101598476B (en) * | 2008-06-03 | 2013-04-24 | 海尔集团公司 | Cooling medium circulation system of air conditioner |
| CN108716789A (en) * | 2018-06-20 | 2018-10-30 | 珠海格力电器股份有限公司 | Heat exchanger, liquid separation control device, air conditioner and control method of air conditioner |
| CN109084444A (en) * | 2018-07-26 | 2018-12-25 | 四川长虹空调有限公司 | A kind of method and air-conditioning inhibiting condenser for outdoor unit of air conditioner frosting |
| CN109084444B (en) * | 2018-07-26 | 2021-07-16 | 四川长虹空调有限公司 | Method for inhibiting frosting of condenser of air conditioner outdoor unit and air conditioner |
| CN110836468A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836450A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836481A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836473A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836479A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836473B (en) * | 2018-08-17 | 2021-10-29 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836479B (en) * | 2018-08-17 | 2021-10-29 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN110836481B (en) * | 2018-08-17 | 2021-11-23 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN112984710A (en) * | 2021-02-01 | 2021-06-18 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner and air conditioner |
| CN112984710B (en) * | 2021-02-01 | 2022-07-19 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner and air conditioner |
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Expiration termination date: 20131111 Granted publication date: 20050112 |