CN107869812A - Integral type embrane method solution heat pump system - Google Patents

Integral type embrane method solution heat pump system Download PDF

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Publication number
CN107869812A
CN107869812A CN201610844405.2A CN201610844405A CN107869812A CN 107869812 A CN107869812 A CN 107869812A CN 201610844405 A CN201610844405 A CN 201610844405A CN 107869812 A CN107869812 A CN 107869812A
Authority
CN
China
Prior art keywords
solution
exchange
heat
heat exchanger
moisture layer
Prior art date
Application number
CN201610844405.2A
Other languages
Chinese (zh)
Inventor
王晶
薛丹
刘德昌
张立臣
胡灿
Original Assignee
青岛海尔智能技术研发有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 青岛海尔智能技术研发有限公司 filed Critical 青岛海尔智能技术研发有限公司
Priority to CN201610844405.2A priority Critical patent/CN107869812A/en
Publication of CN107869812A publication Critical patent/CN107869812A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001Compression cycle type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1435Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane

Abstract

The invention discloses a kind of integral type embrane method solution heat pump system, including compressor, condenser, throttle part and evaporator, condenser and evaporator are using the heat exchanger with humidity adjusting function;Heat exchanger includes heat exchange main body and secondary unit; the outside of heat exchange main body is provided with exchange of moisture layer; exchange of moisture layer includes diaphragm and adds based Dehumidification Membranes; diaphragm and plus based Dehumidification Membranes be successively set on heat exchange main body on; diaphragm and add based Dehumidification Membranes between form solution flow channel, exchange of moisture layer is provided with the solution inlet port connected with solution flow channel and taphole;Secondary unit is provided with the first heat exchanger channels and the second heat exchanger channels of mutual heat exchange, the first heat exchanger channels connection wherein taphole of the solution inlet port of an exchange of moisture layer and another exchange of moisture layer, the second heat exchanger channels connection wherein solution inlet port of the taphole of an exchange of moisture layer and another exchange of moisture layer.Improve humidity regulation efficiency high and reduce manufacturing cost.

Description

Integral type embrane method solution heat pump system

Technical field

The present invention relates to air-conditioning equipment, more particularly to a kind of integral type embrane method solution heat pump system.

Background technology

At present, air-conditioning is the household electrical appliance commonly used in people's daily life, and conventional air-conditioning generally includes compressor, condensation Device, throttle part and evaporator, air-conditioning generally have the function of dehumidifying, the main evaporating temperature using evaporator to air dew point Below so that vapor dew and dehumidify.But in actual use, air-conditioning is generally simply possible to use in dehumidifying, and dry In dry environment, air-conditioning can not realize the function of humidification.In order to solve the above problems, using the air-conditioning with solution dehumidification function Studied exploitation, solution dehumidification are based on dissolving-diffusion mechanism, main to realize dehumidifying and humidification using the concentration of solution, instant Vapor when liquid concentration is big in absorption air, conversely, solution concentration hour release vapor is into air.And in the prior art In order to realize the function of solution dehumidification, the membrane type dehumidifier of generally use independence, membrane type dehumidifier generally includes liquor box and covered The film covered on liquor box(Organic high molecular polymer film, inoranic membrane, liquid film etc. have the film that vapor passes through function), in reality , it is necessary to which solution is cooled down outside low-temperature receiver and thermal source and regeneration treatment during the use of border, humidity regulation efficiency is low, and And extra increased membrane type dehumidifier causes the overall volume of air-conditioning to become big and manufacturing cost increase.How a kind of humidity is designed It is the technical problems to be solved by the invention to adjust efficiency high, small volume and the low air-conditioning of manufacturing cost.

The content of the invention

The invention provides a kind of integral type embrane method solution heat pump system, realizes and improves integral type embrane method solution heat pump system Humidity regulation efficiency high so that the overall volume of heat pump diminishes and reduces manufacturing cost.

To reach above-mentioned technical purpose, the present invention is realized using following technical scheme:

Integral type embrane method solution heat pump system, including compressor, condenser, throttle part and the evaporator to link together, institute Condenser and the evaporator are stated using the heat exchanger with humidity adjusting function;The heat exchange with humidity adjusting function Device includes the heat exchange main body and secondary unit for cooling matchmaker's fluid interchange, and the outside of the heat exchange main body is provided with moisture Switching layer, the exchange of moisture layer include diaphragm and add based Dehumidification Membranes, and the diaphragm and described plus based Dehumidification Membranes are successively set on In the heat exchange main body, solution flow channel is formed between the diaphragm and described plus based Dehumidification Membranes, the exchange of moisture layer is set It is equipped with the solution inlet port connected with the solution flow channel and taphole;The secondary unit is provided with mutually heat and handed over The first heat exchanger channels and the second heat exchanger channels changed, first heat exchanger channels connect the molten of the wherein one exchange of moisture layer Liquid import and the taphole of another exchange of moisture layer, second heat exchanger channels connect the wherein one exchange of moisture layer Taphole and another exchange of moisture layer solution inlet port.

Compared with prior art, the advantages and positive effects of the present invention are:By setting moisture to hand in heat exchange body exterior Change layer, heat exchange main body is used for cooling matchmaker's fluid interchange, when refrigerant flows through and exchanges heat main body, refrigerant can with exchange of moisture layer Solution carries out heat exchange, and the solution in exchange of moisture layer is freezed or heated so as to realize, heat exchange main body can carried out While temperature adjusting, can also together realize the regulation to humidity, refrigerant can more quickly with heat exchange body exterior Solution carries out heat exchange, effectively raises the regulation efficiency of humidity, heat exchanger is integrated with the function of humidification dehumidifying in itself, heavier Want, the solution in the solution and outdoor heat exchanger in indoor heat exchanger carries out hot friendship in secondary unit Change, realize the regeneration function of solution, so as to realize that air-conditioning need not be using extra independent membrane type dehumidifier so that heat pump it is whole Body volume diminishes and effectively reduces manufacturing cost.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the structure principle chart of integral type embrane method solution heat pump system embodiment of the present invention;

Fig. 2 is that the structure of the heat exchanger in integral type embrane method solution heat pump system embodiment of the present invention with humidity adjusting function is former Reason figure;

Fig. 3 is the structural representation one of heat exchange main body in integral type embrane method solution heat pump system embodiment of the present invention;

Fig. 4 is the structural representation of fin in integral type embrane method solution heat pump system embodiment of the present invention;

Fig. 5 is the structural representation two of heat exchange main body in integral type embrane method solution heat pump system embodiment of the present invention;

Fig. 6 is a-quadrant close-up schematic view in Fig. 5.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.

As Figure 1-Figure 2, the present embodiment integral type embrane method solution heat pump system include link together compressor 7, Condenser 102, throttle part 8 and evaporator 101, wherein, condenser 102 and the use of evaporator 101 have humidity regulation work( The heat exchanger of energy, there is the heat exchanger of humidity adjusting function to include being used for the heat exchange main body 1 of cooling matchmaker's fluid interchange, the heat exchange The passage 10 of cooling matchmaker flowing is formed in main body 1 and is provided with refrigerant import and refrigerant exit, the outside of the heat exchange main body 1 is set Be equipped with exchange of moisture layer 2, the exchange of moisture layer 2 include diaphragm 21 and plus based Dehumidification Membranes 22, the diaphragm 21 and it is described plus Based Dehumidification Membranes 22 are successively set in the heat exchange main body 1, and the diaphragm 21 is attached to the surface of the heat exchange main body 1, the guarantor Solution flow channel 20 is formed between cuticula 21 and described plus based Dehumidification Membranes 22, the exchange of moisture layer 2 is provided with and the solution The solution inlet port and taphole that flow channel 20 connects;And the exchange of moisture layer 2 in two heat exchange main bodys 1 is by aiding in heat to hand over Parallel operation 3 is connected with each other, and secondary unit 3 is provided with the first heat exchanger channels 31 and the second heat exchanger channels 32 of mutual heat exchange, First heat exchanger channels 31 connect the solution inlet port of the wherein one exchange of moisture layer 2 and another exchange of moisture layer 2 Taphole, second heat exchanger channels 32 connect the taphole of the wherein one exchange of moisture layer 2 and another moisture The solution inlet port of switching layer 2.

Specifically, the structure of the condenser 102 in the present embodiment integral type embrane method solution heat pump system and evaporator 101 Using the heat exchanger with humidity adjusting function, there is the heat exchange main body 1 in the heat exchanger of humidity adjusting function to be used for cooling matchmaker Flowing carries out heat exchange, and heat exchange main body 1 will be connected to form refrigerant flow circuits with compressor in actual use, and same When, the outside of heat exchange main body 1 is additionally provided with exchange of moisture layer 2, and forming solution flow channel 20 in exchange of moisture layer 2 is used for for molten Liquid stream is moved, and the diaphragm 21 of exchange of moisture layer 2 be attached to it is described heat exchange main body 1 outer wall on, diaphragm 21 will completely cut off solution with Exchange heat main body 1 surface contact, with protect heat exchange main body 1 from solution corrosion, and exchange of moisture layer 2 plus based Dehumidification Membranes 22 protect Vapor in card air can free in and out exchange of moisture layer 2, and solution can not be by adding based Dehumidification Membranes 22.Exchange heat the side of main body 1 one Face is used for the heat exchange of refrigerant, and the main body 1 that on the other hand exchanges heat is using in the refrigerant and outside exchange of moisture layer 2 of its internal flow Solution carry out heat exchange, with as needed in exchange of moisture layer 2 solution freeze or heating, to realize regulating environmental humidity Function, also, because refrigerant and solution can be rapidly performed by heat exchange, so as to effectively improve the regulation of humidity effect Rate.Heat exchanger is also integrated with solution dehumidification function while refrigerant heat exchange is realized, the heat exchanger of integral structure makes to have leisure Adjust equipment additionally to use independent membrane type dehumidifier, the overall volume of air-conditioning equipment on the one hand can be caused to reduce, it is another Aspect can effectively reduce manufacturing cost.And in actual use, one of heat exchange main body 1 serves as condenser 102, Another heat exchange main body 1 serves as evaporator 101, and the solution exported in two heat exchange main bodys 1 in different in moisture switching layer 2 will aid in Heat exchange is carried out in heat exchanger 3, to better meet the regulation requirement of indoor environment temperature and humidity.Wherein, described first Solution pump 4 and solution expansion drum 5 are connected on heat exchanger channels 31 and second heat exchanger channels 32.

Further, in order to more effectively improve humidity regulation efficiency, exchange of moisture layer 2 is wrapped in the heat exchange main body 1 Outside.Specifically, being wrapped in the outside of heat exchange main body 1 by exchange of moisture layer 2, exchange of moisture can be increased to greatest extent Heat exchange area between layer 2 and heat exchange main body 1, in the presence of refrigerant, can more effectively improve humidity regulation efficiency.It is excellent Choosing, the overlay film of diaphragm 21 is formed in the outer surface of the heat exchange main body 1, is assembled in order to the processing of heat exchanger.

Wherein, the performance entity of the heat exchange main body 1 in the present embodiment can use multiple structural forms, such as:Heat exchange master Body 1 can use the structure types such as tubular radiator, gilled radiator or panel radiator, specifically, as shown in figure 3, changing Hot main body 1 is refrigerant pipe, and exchange of moisture layer 2 is wrapped on the outer wall of refrigerant pipe.And in order to improve radiating efficiency, such as Fig. 3-Fig. 4 Shown, heat exchange main body 1 is additionally provided with fin 11 on the basis of using refrigerant pipe, and fin 11 offers multiple tube expansion holes 111, cold Matchmaker's pipe 1 is arranged in the tube expansion hole 111, and the exchange of moisture layer 2 also is located in the tube expansion hole 111, the tube expansion hole 111 Edge be provided with breach 112 for passing through for the solution flow channel 20, specifically, in order to ensure solution can be in water Smoothly flowed in point switching layer 2, breach 112 is additionally provided with the tube expansion hole 111 of fin 11, breach 112 forms and supplies solution stream The space that dynamic passage 20 passes through, after the heat exchange tube expansion of main body 1 is arranged in tube expansion hole 111, the solution in exchange of moisture layer 2 is still Can be by the smooth outflow of solution flow channel 20 that is applied in breach 112, it is preferred that swollen in order to increase the flow of solution Pore 111 along the circumferential direction offers multiple breach 112.And in order to improve heat exchange efficiency, the heat exchange main body 1 is overall to be in Serpentine coil structure.Or as shown in Fig. 5-Fig. 6, heat exchange main body 1 uses heat sink, formed with refrigerant channel 10 in heat sink, Preferably, can be formed as needed using the multi-disc heat sink positioned opposite between heat sink described in adjacent two panels empty Flow of air region 100.

The present embodiment integral type embrane method solution heat pump system includes refrigerant circulation and solution circulates.

Refrigerant circulation includes:Compressor, condenser, expansion valve, evaporator, the high temperature after refrigerant is compressed by the compressor are high Compression refrigerant enters condenser, within the condenser heat release, then is throttled via throttle part into low-temperature low-pressure refrigerant, into evaporation Device is absorbed heat, then flows back to compressor.

Solution circulation includes:Condenser, solution expansion drum, solution pump, secondary unit, evaporator.Concentrated solution is being steamed The vapor in absorption air in device is sent out, to reach effect on moisture extraction, while is cooled down by the refrigerant in evaporator.It is dense after dilution Solution enters solution expansion drum and solution pump, flows into the high temperature weak solution that secondary unit comes out with condenser and carries out heat exchange temperature Degree slightly raises, and after the concentrated solution after dilution continues flowing inflow condenser, by the refrigerant heat in condenser, solution is condensing At a temperature of regenerated, the vapor in solution is discharged into air, to be humidified to air.

During summer condition, the cooled dehumidifying of air of indoor.During winter condition, the air of indoor is heated humidification.

And the operation principle of heat exchanger is as follows:

When the refrigerant in heat exchanger is in cooling condition, air is adding the flows outside of based Dehumidification Membranes 22, because refrigerant temperature is relatively low, The solution of liquid flow channel 20 is absorbed heat first, solution also absorbs heat to air, so that air themperature reduces;Meanwhile Because the concentration of solution is higher, moisture absorption, air eventually cool-down dehumidification can be carried out to air.

When the refrigerant in heat exchanger is in heating condition, air is adding the flows outside of based Dehumidification Membranes 22, due to refrigerant temperature Degree is higher, the solution of liquid flow channel 20 is heated first, solution also heats to air, so that air themperature liter It is high;Simultaneously as the concentration of solution is relatively low, and refrigerant temperature reaches regeneration temperature, and the vapor in solution can be discharged to sky In gas, so as to being humidified to air, air eventually heats up humidification.

Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that:It still may be used To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic; And these modifications or replace, do not make appropriate technical solution essence depart from the present invention embodiment technical scheme spirit and Scope.

Claims (9)

1. a kind of integral type embrane method solution heat pump system, including compressor, condenser, throttle part and the evaporation to link together Device, it is characterised in that the condenser and the evaporator are using the heat exchanger with humidity adjusting function;It is described have it is wet Spending the heat exchanger of regulatory function includes being used for the heat exchange main body and secondary unit of cooling matchmaker's fluid interchange, the heat exchange main body Outside be provided with exchange of moisture layer, the exchange of moisture layer include diaphragm and plus based Dehumidification Membranes, the diaphragm and it is described plus Based Dehumidification Membranes are successively set in the heat exchange main body, and solution flow channel is formed between the diaphragm and described plus based Dehumidification Membranes, The exchange of moisture layer is provided with the solution inlet port connected with the solution flow channel and taphole;The auxiliary heat exchange Device is provided with the first heat exchanger channels and the second heat exchanger channels of mutual heat exchange, and first heat exchanger channels connect wherein one institute The solution inlet port of exchange of moisture layer and the taphole of another exchange of moisture layer are stated, the second heat exchanger channels connection is wherein The solution inlet port of the taphole of the one exchange of moisture layer and another exchange of moisture layer.
2. integral type embrane method solution heat pump system according to claim 1, it is characterised in that the exchange of moisture layer parcel In the outside of the heat exchange main body.
3. integral type embrane method solution heat pump system according to claim 1, it is characterised in that the diaphragm overlay film is formed In the outer surface of the heat exchange main body.
4. integral type embrane method solution heat pump system according to claim 1, it is characterised in that first heat exchanger channels and Solution pump is connected on second heat exchanger channels.
5. integral type embrane method solution heat pump system according to claim 1, it is characterised in that first heat exchanger channels and Solution expansion drum is connected on second heat exchanger channels.
6. integral type embrane method solution heat pump system according to claim 1, it is characterised in that the heat exchange main body is refrigerant Pipe.
7. integral type embrane method solution heat pump system according to claim 7, it is characterised in that also set up on the refrigerant pipe There is fin, the fin is provided with tube expansion hole, and the refrigerant pipe is arranged in the tube expansion hole, and the exchange of moisture layer also is located at In the tube expansion hole, the edge in the tube expansion hole is provided with the breach for being passed through for the solution flow channel.
8. integral type embrane method solution heat pump system according to claim 8, it is characterised in that the tube expansion hole is circumferentially square To offering multiple breach.
9. integral type embrane method solution heat pump system according to claim 1, it is characterised in that the heat exchange main body is radiating Plate, formed with refrigerant channel in the heat sink.
CN201610844405.2A 2016-09-23 2016-09-23 Integral type embrane method solution heat pump system CN107869812A (en)

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Application Number Priority Date Filing Date Title
CN201610844405.2A CN107869812A (en) 2016-09-23 2016-09-23 Integral type embrane method solution heat pump system

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CN107869812A true CN107869812A (en) 2018-04-03

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110762698A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762699A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762812A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762700A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762750A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762696A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762694A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762695A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762749A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110762698A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762699A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762812A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762700A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762750A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762696A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762694A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762695A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner
CN110762749A (en) * 2018-07-28 2020-02-07 青岛海尔空调器有限总公司 Self-cleaning control method for air conditioner

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