CN106091179B - A kind of method and dehumidifier of continuous dehumidifying defrost - Google Patents

A kind of method and dehumidifier of continuous dehumidifying defrost Download PDF

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Publication number
CN106091179B
CN106091179B CN201610451800.4A CN201610451800A CN106091179B CN 106091179 B CN106091179 B CN 106091179B CN 201610451800 A CN201610451800 A CN 201610451800A CN 106091179 B CN106091179 B CN 106091179B
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Prior art keywords
evaporator
dehumidifier
condenser
wind turbine
defrost
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CN201610451800.4A
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CN106091179A (en
Inventor
肖喜平
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • 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
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/006Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • 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
    • F24F2003/144Air-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 by dehumidification only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2347/00Details for preventing or removing deposits or corrosion

Abstract

The present invention discloses a kind of method and dehumidifier of continuous dehumidifying defrost, wherein the method for continuous dehumidifying defrost includes the following steps:Step S1:Dehumidifier is provided, which includes compressor, evaporator, condenser, throttle valve, wind turbine and four-way reversing valve;Step S2:When dehumidifier is in defrost pattern, control four-way reversing valve, refrigerant is set to return compressor from compressor followed by evaporator, throttle valve, condenser, evaporator, which is flowed through, using high temperature refrigerant realizes defrost, at this time, wind turbine makes gas blow to vaporizer side by the condenser side of dehumidifier, realizes dehumidifying.Wind turbine reversion is flowed to two ways with change dehumidifier inner refrigerant and is effectively combined by the present invention, can realize high efficiency dehumidifying under the premise of ensureing not shut down defrost.

Description

A kind of method and dehumidifier of continuous dehumidifying defrost
Technical field
The present invention relates to dehumidifier technical field more particularly to a kind of methods and dehumidifier of continuous dehumidifying defrost.
Background technology
Dehumidifier is also known as dehumidifier, drying machine, dehumidifier, generally can be divided into civilian dehumidifier and industrial dehumidifier two is big Class belongs to a member in air-conditioning family.Conventional dehumidifier is by compressor, pressure fan, condenser, expansion valve, evaporator, Sheng Hydrophone, casing and controller composition, wherein the refrigerant circulating process of dehumidifier is as follows:Liquid refrigerant absorbs in evaporator Heat in air simultaneously starts to evaporate, and air cooling-down dehumidifying, liquid refrigerant evaporation becomes gaseous state, after sucked and pressed by compressor It contracting (pressure and temperature increase), gaseous refrigerant condenses into liquid by condenser discharge heat, atmosphere temperature rising, refrigerant, then Become low-temperature low-pressure refrigerant after throttling by expansion valve and enter evaporator, completes refrigerant circulating process.The air of dehumidifier Cycle is as follows:Pressure fan is responsible for sucking room air, passes through blowout after evaporator dehumidification, cooling and condenser heating to room It is interior.
Current dehumidifier run under worst cold case be easy frosting, general defrost pattern be control compressor stop and Wind turbine continues by defrost.Not only defrost efficiency is low for such defrost mode, but also does not have dehumidifying energy under shutdown status Power reduces dehumidification efficiency.
Also technical staff proposes a kind of mode of reversion wind turbine defrost, for example, Chinese patent literature CN102506527A discloses a kind of frost-removal structure and defrost mode of dehumidifier, as shown in Figure 1, the frost-removal structure of this dehumidifier Including air duct 1 ', motor 2 ', fan blade or wind wheel 3 ', evaporator 5 ', condenser 6 ' and evaporator temperature detector 4 ', motor 2 ', It is interior that fan blade or wind wheel 3 ', evaporator 5 ', condenser 6 ' and evaporator temperature detector 4 ' are located at air duct 1 ', and motor 2 ' is reversion electricity Machine, the mini system that motor 2 ', fan blade or wind wheel 3 ' form are located at side or motor 2 ', the fan blade of evaporator 5 ' and condenser 6 ' Or the mini system that wind wheel 3 ' forms is between evaporator 5 ' and condenser 6 '.As shown in Fig. 2, the specific defrost side of this dehumidifier Formula is:5 ' surface temperature of evaporator, the rotating forward reversion of control motor 2 ' are monitored by evaporator temperature detector 4 ';Work as evaporator Hygrosensor 7 ' detects Te≤Ts1 DEG C of the surface temperature of evaporator 5 ', starts timing, and motor 2 ' acts simultaneously after the t1 times Reversion, defrost starts, when evaporator temperature detector 4 ' detects Te >=Ts2 DEG C of the surface temperature of evaporator 5 ', by t2 After time, motor 2 ' restores to rotate forward operation, and complete machine restarts normally to dehumidify.
In defrost, wind turbine 2 ' inverts the dehumidifier of above structure, and compressor do not shut down, and wind turbine 2 ' is directly by wind to steaming Device 5 ' is sent out, so that 5 ' surface temperature of evaporator is increased and realizes defrost.Although the defrost effect of the dehumidifier of above structure improves, It is since since loop direction of the refrigerant in dehumidifier does not change, when wind turbine 2 ' inverts, the dehumidifying of dehumidifier is imitated Fruit reduces under the influence of the wind turbine 2 ' of reversion, and then keeps the dehumidification efficiency of dehumidifier when defrost low.
Invention content
It is an object of the present invention to provide a kind of methods of continuous dehumidifying defrost, and wind turbine is inverted and changes dehumidifying Machine inner refrigerant flows to two ways and is effectively combined, and can realize high efficiency under the premise of ensureing not shut down defrost Dehumidifying.
It is another object of the present invention to provide a kind of dehumidifiers, can realize defrost in the case that non-stop-machine, And dehumidification efficiency is not interfered with.
For this purpose, the present invention uses following technical scheme:
On the one hand, a kind of method of continuous dehumidifying defrost is provided, is included the following steps:
Step S1:Dehumidifier is provided, which includes compressor, evaporator, condenser, throttle valve, wind turbine and four-way Reversal valve;
Step S2:When dehumidifier is in defrost pattern, control four-way reversing valve, make refrigerant from compressor followed by Evaporator, throttle valve, condenser return compressor, and flowing through evaporator using high temperature refrigerant realizes defrost, at this point, wind turbine makes Gas blows to vaporizer side by the condenser side of dehumidifier, realizes dehumidifying.
On the other hand, a kind of dehumidifier, including compressor, evaporator, condenser, throttle valve and wind turbine are also provided, also Including four-way reversing valve, there are four valve ports for four-way reversing valve tool, respectively with the entrance of the compressor, the compressor Outlet, the evaporator and the condenser connection, wherein the condenser, the throttle valve and the evaporator according to Secondary connection, the wind turbine are wind turbine that can be positive/negative turn.
Beneficial effects of the present invention are:The present invention is changed by adding four-way between evaporator, condenser and compressor To valve, changes the flow direction of refrigerant using four-way reversing valve, evaporator is become into condenser, it will using the refrigerant of high temperature and pressure The white completion of the evaporator surface of script is gone, while coordinating the wind turbine of reversion, and wind turbine reversion latter aspect hot wind blows to originally Evaporator, it is realized defrost handle, on the other hand make script condenser realize evaporator dehumidifying function, i.e., defrost and Dehumidifying is synchronous to be carried out, and ensures efficient dehumidifying while not shutting down defrost.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing dehumidifier normal operating conditions.
Fig. 2 is the structural schematic diagram of existing dehumidifier defrost working condition.
Fig. 3 is the structural schematic diagram of the dehumidifier of the embodiment of the present invention.
Status diagram when Fig. 4 is the dehumidifier normal operation of the embodiment of the present invention.
Status diagram when Fig. 5 is the dehumidifier defrost state of the embodiment of the present invention.
In Fig. 1 and 2:
1 ', air duct;2 ', motor;3 ', fan blade or wind wheel;4 ', evaporator temperature detector;5 ', evaporator;6 ', it condenses Device.
In Fig. 3 to 5:
1, compressor;2, evaporator;3, condenser;4, wind turbine;5, throttle valve;6, four-way reversing valve;7, water tank.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Fig. 3 to 5, the method for the continuous dehumidifying defrost of the embodiment of the present invention includes the following steps:
Step S1:There is provided dehumidifier, the dehumidifier include compressor 1, evaporator 2, condenser 3, throttle valve 5, wind turbine 4 and Four-way reversing valve 6;
Step S2:When dehumidifier is in defrost pattern, four-way reversing valve 6 is controlled, refrigerant is made to be flowed successively from compressor 1 Compressor 1 is returned through evaporator 2, throttle valve 5, condenser 3, flowing through evaporator 2 using high temperature refrigerant realizes defrost, this When, wind turbine 4 keeps gas side-blown to 2 side of evaporator from the condenser 3 of dehumidifier, realizes dehumidifying.
By adding four-way reversing valve 6 between evaporator 2, condenser 3 and compressor 1, changed using four-way reversing valve 6 Evaporator 2 is become condenser 3 (evaporator 2 i.e. at this time realizes the effect of condenser 3), utilizes height by the flow direction of variable refrigerant The refrigerant of warm high pressure removes the white completion on 2 surface of evaporator of script, while coordinating the wind turbine 4 of reversion, after wind turbine 4 inverts One side hot wind blows to the evaporator 2 of script, realizes that defrost is handled to it, and the condenser 3 of script is on the other hand made to realize evaporation The function that device 2 dehumidifies, i.e. defrost are synchronous with dehumidifying to be carried out, and ensures efficient dehumidifying while not shutting down defrost.
In a preferred embodiment of the invention, the method for continuous dehumidifying defrost further includes step S3:Work as dehumidifier When in dehumidification mode, four-way reversing valve 6 is controlled, makes refrigerant from compressor 1 followed by condenser 3, throttle valve 5, evaporation Device 2 returns compressor 1, at this point, wind turbine 4 keeps gas side-blown to 3 side of condenser from the evaporator 2 of dehumidifier.
In another preferred embodiment of the present invention, temperature monitoring is carried out to evaporator 2, when 2 surface temperature of evaporator When spending T≤a, step S2 is carried out;As 2 surface temperature T > a of evaporator, step S3 is carried out, wherein -4 DEG C≤a≤1 DEG C.
More preferred, as dehumidifier run time interval N, temperature monitoring is carried out to evaporator 2, wherein 3min≤N ≤10min。
In the present embodiment, 0 DEG C of -4 DEG C≤a <.
In the specific embodiment of the present invention, as shown in figure 4, when dehumidifier is in dehumidification mode, wind turbine 4 is just Turn, four-way reversing valve 6 controls its a mouthfuls and is connected to b mouthfuls, and c mouthfuls are connected to d mouthfuls, and the refrigerant come out by compressor 1 passes sequentially through cold Condenser 3, throttle valve 5 enter evaporator 2, eventually pass back to compressor 1, evaporator 2 is in normal dehumidification function at this time.
As shown in figure 5, when detecting temperature T≤a on evaporator 2, wind turbine 4 inverts, and four-way reversing valve 6 controls its a Mouth is connected to d mouthfuls, and b mouthfuls are connected to c mouthfuls, and the refrigerant come out by compressor 1 passes sequentially through evaporator 2, throttle valve 5 enters condensation Device 3 eventually passes back to compressor 1, and at this time by the refrigerant of high temperature in evaporator 2, surface is due to the effect of high temperature refrigerant Defrost, and condenser 3 starts to realize the dehumidification function of evaporator 2, after dehumidifier is run N minutes, then detects on evaporator 2 Temperature, if T > a at this time, wind turbine 4 starts to restore to rotate forward, and four-way reversing valve 6 controls its a mouthfuls and is connected to b mouthfuls, c mouthfuls and d Mouth connection, the evaporator 2 of dehumidifier are restored to dehumidification function.
As shown in Fig. 3 to 5, the embodiments of the present invention also provide a kind of dehumidifier, including it is compressor 1, evaporator 2, cold Condenser 3, throttle valve 5 and wind turbine 4, further include four-way reversing valve 6, and there are four valve ports for the tool of the four-way reversing valve 6, respectively with institute State the entrance of compressor 1, the exporting of the compressor 1, the connection of the evaporator 2 and the condenser 3, wherein described cold Condenser 3, the throttle valve 5 and the evaporator 2 are sequentially connected, and the wind turbine 4 is wind turbine that can be positive/negative turn.
By in dehumidifier increase four-way reversing valve 6, and by wind turbine 4 be set as can be positive/negative turn wind turbine, can make whole A dehumidifier can also keep efficient effect on moisture extraction in defrost pattern.
In a preferred embodiment of the invention, first temperature sensor is set on the evaporator 2.
By the way that temperature sensor is arranged on evaporator 2,2 surface of evaporator can be monitored in real time using this temperature sensor Temperature and frosting situation, in order to control dehumidifier carry out defrost processing.
In another preferred embodiment of the present invention, second temperature sensor is set on the condenser 3.
Since dehumidifier is in defrosting operation, refrigerant adverse current, while wind turbine 4 inverts, condenser 3 is realizing evaporator Dehumidification function, surface also will appear different degrees of frosting, and temperature sensor is arranged on condenser 3, can supervise in real time The temperature on 3 surface of condenser is surveyed, when it frosting situation occurs, dehumidifier controls four-way reversing valve 6 and commutates again again, refrigerant Fair current, while wind turbine 4 rotates forward, and returns to original state, you can carry out defrosting processing to the condenser 3 of frosting, evaporate simultaneously Device 2 is restored to the state of original dehumidification function.
In the specific embodiment of the present invention, the entrance and exit of the compressor 1 is changed with the four-way respectively It is connected to a mouths of valve 6 with c mouthfuls, the outlet of the evaporator 2 is connected to the d of the four-way reversing valve 6 mouths, the condenser 3 Entrance is connected to the b of the four-way reversing valve 6 mouths;
As shown in figure 4, when the wind turbine 4 rotates forward, a mouths of the four-way reversing valve 6 are connected to b mouthfuls, and the four-way changes It is connected to the c mouths of valve 6 with d mouthfuls, at this point, refrigerant fair current;
As shown in figure 5, when the wind turbine 4 inverts, a mouths of the four-way reversing valve 6 are connected to d mouthfuls, and the four-way changes It is connected to the b mouths of valve 6 with c mouthfuls, at this time refrigerant adverse current.
By the valve port on-position of change four-way reversing valve 6, the fair current of refrigerant and the alternating of adverse current may be implemented, into And coordinate the wind turbine 4 of reversion, so that dehumidifier realizes defrost and dehumidifying simultaneously, and effect on moisture extraction is not influenced, i.e., when four-way commutates The a mouths of valve 6 are connected to b mouthfuls, c mouthfuls when being connected to d mouthfuls, and the refrigerant come out by compressor 1 passes sequentially through condenser 3, throttle valve 5 Into evaporator 2, compressor 1 is eventually passed back to, dehumidifier is made to realize the dehumidification function under normal condition;When 2 surface of evaporator is tied When white, wind turbine 4 inverts, while a mouths of four-way reversing valve 6 are connected to d mouthfuls, and b mouthfuls are connected to c mouthfuls, the refrigeration come out by compressor 1 Agent pass sequentially through evaporator 2, throttle valve 5 enter condenser 3, eventually pass back to compressor 1, at this time on evaporator 2 start defrost and Realize the function of script condenser 3, and condenser 3 starts to realize the function of 2 dehumidifying of script evaporator.
In one embodiment of the invention, water tank is arranged in the lower section of the condenser 3 and/or the evaporator 2.
By the way that water tank 7 is arranged, mainly collects evaporator 2 or condenser 3 and formed on surface when dehumidifying and defrost Water droplet, preventing water droplet from entering in dehumidifier the work for influencing other components or flowing out to outside dehumidifier influences to use ring Border.
Further, the wind turbine 4 is set between the condenser 3 and the evaporator 2 or the condenser 3 is remote The side of side or the evaporator 2 far from the condenser from the evaporator 2.In the present embodiment, the wind turbine 4 It is arranged between the condenser 3 and the evaporator 2.
The present invention is in compared with existing general dehumidifier:
Under 5 DEG C/2.1 DEG C of environmental condition, general dehumidifier is run N1 minutes, is shut down N2 minutes, is reached defrost Purpose.If the dehumidifying time of N1=10min, N2=5min, this dehumidifier only have 67% (10min/ (10min+5min)), and The dehumidifying time of the dehumidifier of the present invention can reach 100%, it is contemplated that the variation of air quantity after wind turbine reversion, effect on moisture extraction decaying 30%, then moisture removal can improve 23.3% (5min* (1-30%)/(10min+5min)), and the defrost time of the present invention can It is even shorter to be reduced to 3min by original 5min.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within Within protection scope of the present invention.

Claims (6)

1. a kind of method of continuous dehumidifying defrost, which is characterized in that include the following steps:
Step S1:Dehumidifier is provided, which includes compressor, evaporator, condenser, throttle valve, wind turbine and four-way commutation Valve;
Step S2:When dehumidifier is in defrost pattern, four-way reversing valve is controlled, makes refrigerant from compressor followed by evaporation Device, throttle valve, condenser return compressor, and flowing through evaporator using high temperature refrigerant realizes defrost, at this point, wind turbine makes gas Vaporizer side is blowed to by the condenser side of dehumidifier, realizes dehumidifying;
Step S3:When dehumidifier is in dehumidification mode, four-way reversing valve is controlled, makes refrigerant from compressor followed by condensation Device, throttle valve, evaporator return compressor, at this point, wind turbine makes gas blow to condenser side by the vaporizer side of dehumidifier;
Temperature monitoring is carried out to evaporator, as evaporator surface temperature T≤a, carries out step S2;As evaporator surface temperature T When > a, step S3 is carried out, wherein a=1 DEG C;
The wind turbine is wind turbine that can be positive/negative turn, and the wind turbine is set between the condenser and the evaporator.
2. the method for continuous dehumidifying defrost according to claim 1, which is characterized in that as dehumidifier run time interval N When, temperature monitoring is carried out to evaporator, wherein 3min≤N≤10min.
3. a kind of dehumidifier, including compressor, evaporator, condenser, throttle valve and wind turbine, which is characterized in that be suitable for power The method that profit requires 1-2 any one of them continuous dehumidifying defrosts, further includes four-way reversing valve, and the four-way reversing valve has four A valve port, respectively with the entrance of the compressor, the exporting of the compressor, the evaporator and the condenser are connected to, Wherein, the condenser, the throttle valve and the evaporator are sequentially connected, and the wind turbine is wind turbine that can be positive/negative turn.
4. dehumidifier according to claim 3, which is characterized in that the first temperature sensor is arranged on the evaporator.
5. dehumidifier according to claim 3, which is characterized in that second temperature sensor is arranged on the condenser.
6. according to claim 3 to 5 any one of them dehumidifier, which is characterized in that the condenser and/or the evaporator Lower section be arranged water tank.
CN201610451800.4A 2016-06-20 2016-06-20 A kind of method and dehumidifier of continuous dehumidifying defrost Active CN106091179B (en)

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CN107062446B (en) * 2017-05-08 2019-12-10 广东美的制冷设备有限公司 Air duct structure, dehumidifier and dehumidification method
CN108800355A (en) * 2018-06-25 2018-11-13 袁军 A kind of air conditioning method and system
CN108954516A (en) * 2018-07-19 2018-12-07 珠海格力电器股份有限公司 A kind of dehumidifier and its working method
CN109654616B (en) * 2018-11-13 2021-03-16 青岛海尔空调器有限总公司 Apparatus for dehumidifying and control method thereof
CN110410885A (en) * 2019-06-26 2019-11-05 马强 A kind of dehumidifier
CN111306658A (en) * 2020-03-06 2020-06-19 宁波德业科技股份有限公司 Defrosting method of dehumidifier
CN111609483A (en) * 2020-06-05 2020-09-01 珠海格力电器股份有限公司 Dehumidification device and dehumidification system
CN111966032A (en) * 2020-07-14 2020-11-20 中国人民解放军63653部队 Actual dehumidification quantity measurement control software system

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CN104006451A (en) * 2014-05-30 2014-08-27 广东美的集团芜湖制冷设备有限公司 Freezing type dehumidifier
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CN2511918Y (en) * 2001-11-26 2002-09-18 南京五洲制冷集团创意技术开发有限公司 Low temperature moisture eliminator with four way valve to defrost by switching
CN102506527A (en) * 2011-11-08 2012-06-20 广东美的电器股份有限公司 Defrosting structure and defrosting mode for dehumidifier
CN104006451A (en) * 2014-05-30 2014-08-27 广东美的集团芜湖制冷设备有限公司 Freezing type dehumidifier
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