CN104857818A - Low Dew Point Dehumidifier For Refrigerator - Google Patents
Low Dew Point Dehumidifier For Refrigerator Download PDFInfo
- Publication number
- CN104857818A CN104857818A CN201510087820.3A CN201510087820A CN104857818A CN 104857818 A CN104857818 A CN 104857818A CN 201510087820 A CN201510087820 A CN 201510087820A CN 104857818 A CN104857818 A CN 104857818A
- Authority
- CN
- China
- Prior art keywords
- air
- cold store
- processing
- area
- dehydrating unit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 35
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 239000003463 adsorbent Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 230000008929 regeneration Effects 0.000 abstract description 11
- 238000011069 regeneration method Methods 0.000 abstract description 11
- 238000007791 dehumidification Methods 0.000 abstract 5
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- HXELGNKCCDGMMN-UHFFFAOYSA-N [F].[Cl] Chemical compound [F].[Cl] HXELGNKCCDGMMN-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-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
- F24F3/12—Air-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
- F24F3/14—Air-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
- F24F3/1411—Air-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 absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1429—Air-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 absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0411—Treating air flowing to refrigeration compartments by purification by dehumidification
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Gases (AREA)
- Central Air Conditioning (AREA)
Abstract
The present invention relates to a dehumidifier for a refrigerator, and provides the dehumidifier which enables the energy consumption to be reduced and an evaporator of a refrigerated warehouse or a refrigerator to be difficult to frost. In order to solve the above problems, the processing air coming from the refrigerated warehouse passes a sensible heat exchanger for carrying out heat exchange with the processing outlet air of a dehumidification rotor, and passes a processing area and a purification area of the dehumidification rotor which is segmented into the processing area, a regeneration area and the purification area. The air passing the purification area is returned to the processing air, so that the processing outlet air flowing out of the processing area is supplied to the refrigerated warehouse after the heat exchange of the sensible heat exchanger and the processing air. In addition, the external air is heated by a regeneration heater, and the moisture absorbed by the dehumidification rotor falls off by the regeneration area of the dehumidification rotor, so that the evaporator is prevented from frosting, and a dehumidification performance is realized.
Description
Technical field
The present invention relates to a kind of such as the dehydrating unit of cold store or cold storage warehouse etc.
Background technology
Cold store, cold storage warehouse or refrigerator, refrigerator-freezer generally utilize and employ the high freeze cycle of fluorine chlorine, and in the freeze cycle of cold store, what utilize recently is the freeze cycle that a part employs ammonia.
When the temperature in cold store is lower than the dew point of extraneous gas, the upper frosting of operating evaporimeter (evaporator).If frosting, then heat exchanger effectiveness reduces, and when serious, the heat exchanger of evaporimeter can be blocked by frost completely sometimes, causes air not circulate.
Therefore, stop the operation of refrigerator by the specific cycle, warm braw is circulated on evaporimeter, frost is melted.
Like this, because in the thawing of frost, refrigerator is out of service, therefore, have problems when the cold store of article that the quality of preserving article when the refrigerators such as keeping frozen food are out of service reduces.
Therefore, there is following refrigerator, that is, a refrigerator arranges two evaporimeters, make two evaporimeter alternate runs, thus alternately frost is melted.Although this kind of refrigerator can eliminate frost when not stopping refrigerator, owing to arranging two evaporimeters, therefore exist and increase cost and the problem needing the space that two evaporimeters are set.
On so-called evaporimeter, frosting refers to that refrigerator has latent heat load, can waste energy.That is, in order to produce frost, producing the condensation heat of water on an evaporator and freezing heat.Under the meteorological condition of Japan, this latent heat load accounts for close to half in the consumption energy of refrigerator usually.And, because the pyroconductivity of frost is low, therefore there is the problem that the rate of heat exchange of evaporimeter is bad.
As the technology of the moisture prevented in air frosting in this evaporimeter, invent the dehydrating unit technology disclosed in patent document 1, this dehydrating unit utilizes the moisture in dehumidifying rotor (desiccant rotor) absorbed air, and using the thermal source of the used heat of refrigerator as water desorption, thus reduce energy resource consumption.
In addition, be the technology of the moisture frosting in evaporimeter prevented in the same manner as patent document 1 in air disclosed in patent document 2, it provides following dehydrating unit, namely, use the rotor of adsorption moisture, the fine pore of the adsorbent of the rotor of adjustment adsorption moisture, thus do not make the moisture in pore freeze.
Prior art document
Patent document:
Patent document 1: Japanese Unexamined Patent Publication 2001-179036 publication;
Patent document 2:WO2008-084573 publication.
Disclosed in patent document 1 be can utilize dehumidifying rotor adsorb enter evaporimeter before air in moisture to suppress the technology of frosting on evaporimeter, but to dehumidifying rotor freeze do not mention, the technology of the lower temperature resistance about pressure fan is not disclosed yet.
In patent document 2, openly use does not adjust the technology of the dehumidifying rotor of the adsorbent fine pore of water adsorption rotor.In addition, also openly about the technology of the lower temperature resistance of pressure fan.
That is, which type of dehumidifying rotor no matter two patent documents are all open uses all to make rotor itself can be used in cold store or cold storage warehouse frozen ground and the low dehydrating unit of energy resource consumption.
Summary of the invention
The present invention is for solving problem as above, and it is most important is characterised in that, purifying air of dehumidifying rotor is all turned back to dehumidifier process entrance, all circulates to enable the air flowed out from cold store or cold storage warehouse.
Because dehydrating unit of the present invention has as above structure, therefore, it is possible to provide following dehydrating unit, namely, owing to making the air in cold store by all turning back to cold store behind process (absorption) district of dehumidifying rotor, thus not only reach the saving energy, the frosting of the device that can also avoid evaporating.
In addition, turn back to before process pressure fan owing to making the air of the purifying area (purge zone) that have passed dehumidifying rotor, therefore, make the processed air themperature rising of the storage humidity interval " C1 level " of the refrigerating chamber from warehouse industry method construction regulations defined (Celsius subzero less than 10 degree and more than minus 20 degrees Celsius) cold store below, make to become below the non-serviceable temperature of process pressure fan, dehumidifying rotor also can not be made to freeze.
Accompanying drawing explanation
Fig. 1 is the flow graph of the embodiment 1 representing dehydrating unit of the present invention.
Fig. 2 is the flow graph of the embodiment 2 representing dehydrating unit of the present invention.
The explanation of Reference numeral:
1 dehumidifying rotor
2 treatment regions
3 purifying areas
4 renewing zones
5 cold stores
6,7,8 flashboards
9 regenerative heaters
10 regeneration pressure fan
11 process pressure fan
12 orthogonal sensible heat exchangers
Detailed description of the invention
Make process air from cold store by for carrying out the sensible heat exchanger of heat exchange with the process outlet air of dehumidifying rotor, and make it pass through to be divided into treatment region, renewing zone, the treatment region of dehumidifying rotor in these three districts of purifying area and purifying area (purge zone), the air that have passed purifying area is returned in process air, makes to be supplied to cold store after the process outlet air for the treatment of region outflow carries out heat exchange with process air described sensible heat exchanger.In addition, can provide a kind of dehydrating unit, extraneous air is heated by regenerative heater by this dehydrating unit, and makes it be come off by moisture that dehumidifying rotor adsorbs backward outer exhaust by the renewing zone of dehumidifying rotor, thus the device frosting that can avoid evaporating.
Embodiment 1
Below adopt accompanying drawing, the embodiment of cold store dehydrating unit of the present invention is described in detail.Fig. 1 is the flow graph of the air flowing of the dehydrating unit representing the embodiment of the present invention 1.
In Fig. 11 is dehumidifying rotor, is divided into three districts, is respectively treatment region 2, purifying area 3 and renewing zone 4.In the direction of rotation of dehumidifying rotor 1, be followed successively by treatment region 2, renewing zone 4, purifying area 3.This dehumidifying rotor 1 is rotated by motor (not shown).
Process pressure fan 11 is utilized to make the process air in cold store 5 by orthogonal sensible heat exchanger 12, become dry air by the treatment region 2 of dehumidifying rotor 1 again, and turn back in cold store 5 carry out heat exchange with process air in orthogonal sensible heat exchanger 12 after.
After passing through the purifying area 3 of dehumidifying rotor 1 from a part for the air of process pressure fan 11 outflow, mix with the process air flowed out from orthogonal sensible heat exchanger 12.
Utilize regeneration pressure fan 10, extraneous air OA is heated by regenerative heater 9, the moisture of dehumidified rotor 1 absorption that come off by the renewing zone 4 of dehumidifying rotor 1, and be outwards vented.
By said structure, make to be turned back to from the process air of cold store outflow by the air heated by purifying area, thus do not need to use the process pressure fan with special lower temperature resistance, can original cost be reduced, also can prevent freezing of dehumidifying rotor.In addition, due to the process of flowing out from cold store air is all turned back to cold store, therefore, extraneous air can not invade cold store, thus can be energy-conservation.
Such as, when the temperature in cold store 5 is subzero 30 degree Celsius (following temperature is all " Celsius ") and the regeneration temperature of dehumidifying rotor is 140 degree, use rate of heat exchange is the orthogonal sensible heat exchanger 12 of 52.4%, sensible heat exchanger outlet temperature reaches subzero 13.2 degree, by being 42 degree with the temperature that the purifying area 3 from dehumidifying rotor 1 flows out, air mixes, and air themperature reaches subzero 5.4 degree.In addition, the inlet temperature of the treatment region 2 of dehumidifying rotor 1 is subzero 2.4 degree and dew-point temperature is subzero 30 degree, the outlet temperature for the treatment of region 2 is 2 degree and dew-point temperature is 40 degrees below zero, in orthogonal sensible heat exchanger 12, carry out heat exchange with the process air flowed out from cold store, thus the air themperature being supplied to cold store reaches subzero 14.7 degree and dew-point temperature reaches 40 degrees below zero.
Embodiment 2
Fig. 2 is the flow graph of the air flowing of the dehydrating unit representing the embodiment of the present invention 2.Be problem etc. due to installation space and the embodiment that can not arrange in sensible heat exchanger 12 situation with embodiment 1 difference.Other structure is common, therefore omits repeat specification at this.
Utilize process pressure fan 11, make the process air in cold store 5 become dry air by the treatment region 2 of dehumidifying rotor 1, and turn back in cold store 5.Mix with the process air flowed out from cold store 5 from a part for the air of process pressure fan 11 outflow by the purifying area 3 of dehumidifying rotor 1 is rear, and the temperature that can use to make this air themperature become process pressure fan 11, by by the district of purifying area than methods such as increases, the air quantity of the air by purifying area is increased.In addition, also at process air blower inlet place set temperature sensor temperature-detecting device, and the air quantity ratio by treatment region and purifying area will can be adjusted by quantity regulating device for air such as flashboards.
Generally, be 1/2 ~ 1/10 of the air quantity of air by treatment region as well by the air quantity of the air of purifying area, but be preferably 1/3 ~ 1/6.Table 1 represents, the purification air quantity when using that diameter is 320mm, when the width honeycomb runner that is 400mm and treatment region inlet temperature be minus 20 degrees, regeneration temperature is 140 degree, regeneration air humidity is 20g/kg, regeneration air quantity ratio (regeneration air quantity/process air quantity) is 1/6 is on the experimental result of the impact that wet-out property brings.Be set to 1/2 ~ 1/10 by purifying air quantity ratio (regeneration air quantity/process air quantity), the dew-point temperature that treatment region is exported reduces more than 15 degree compared with the situation not having to purify, and by being set to 1/3 ~ 1/6, reduces by more than 20 degree.
Table 1
When dehydrating unit brings into operation, bring into operation after gate valve 6,7,8 can being closed, making the Cryogenic air under the freezing point in cold store not directly by processing pressure fan, after process air blower inlet temperature fully rises, opening gate valve 6,7,8.In addition, in embodiment 1 also can be identical operation.In addition, although the air under freezing point flows to sensible heat exchanger 12, but due to enter the temperature of sensible heat exchanger 12 from cold store 5 compared with, the dry-bulb temperature turning back to the air of cold store 5 is high and dew-point temperature is low, therefore can not produce frost in sensible heat exchanger 12.
As mentioned above, the all air that have passed purifying area are mixed with processed air, thus make the temperature of the processed air being supplied to process pressure fan increase, therefore the minimum serviceability temperature of normally used pressure fan is subzero about 10 degree, therefore do not need to adopt the pressure fan with special lower temperature resistance, freezing of dehumidifying rotor can also be prevented.In addition, because the whole of processed air of flowing out from cold store turn back to cold store, therefore, do not need to import extraneous air, thus save the energy, do not need the forecooler that extraneous air process is set yet, thus can also original cost be reduced.The lower temperature resistance of general pressure fan of commercially selling combines Japanese meteorological condition and designs.Therefore, when the general pressure fan used within doors, the minimum temperature that producer ensures is subzero about 10 degree.The present invention can use this general pressure fan, therefore contributes at cost with on the time of delivery.
Utilizability in industry
The invention provides a kind of dehydrating unit, this dehydrating unit can prevent the frosting of the evaporimeter of cold store, cold storage warehouse etc., and reduces energy resource consumption.
Claims (4)
1. a dehydrating unit, is characterized in that,
There is dehumidifying rotor, the wetly adsorbent of this dehumidifying rotor load,
In the direction of rotation of described dehumidifying rotor, be divided into three districts according to the order for the treatment of region, renewing zone, purifying area,
Make the air flowed out from cold store by described treatment region and purifying area,
The air that have passed described purifying area is made to turn back to the air flowed out from described cold store,
To make by regenerative heater by the extraneous gas after heating by the backward outer exhaust in described renewing zone,
The air that have passed described treatment region is turned back in described cold store.
2. dehydrating unit according to claim 1, is characterized in that,
The air flowed out in described cold store and the air that will turn back in described cold store carry out Exchange of apparent heat.
3. dehydrating unit according to claim 1 and 2, is characterized in that,
Be provided with the temperature-detecting device for measurement processing air blower inlet temperature, regulate process air quantity and purification air quantity, make described process air blower inlet temperature reach process pressure fan serviceability temperature interval.
4. dehydrating unit according to claim 1, is characterized in that,
1/2 ~ 1/10 of the air quantity of the air that have passed described treatment region is set to by the air quantity of the air of described purifying area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-030388 | 2014-02-20 | ||
| JP2014030388A JP6321398B2 (en) | 2014-02-20 | 2014-02-20 | Low dew point dehumidifier for refrigerated warehouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104857818A true CN104857818A (en) | 2015-08-26 |
| CN104857818B CN104857818B (en) | 2019-03-22 |
Family
ID=53904244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510087820.3A Active CN104857818B (en) | 2014-02-20 | 2015-02-25 | The low dew point dehumidification device of cold storage warehouse |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6321398B2 (en) |
| KR (1) | KR102242190B1 (en) |
| CN (1) | CN104857818B (en) |
| TW (1) | TWI640733B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120747A (en) * | 2017-05-27 | 2017-09-01 | 河南理工大学 | The anti-defrosting system of net for air-source heat pump units dry-air blast and its method of work |
| CN110925902A (en) * | 2019-11-22 | 2020-03-27 | 珠海格力电器股份有限公司 | Low dew point composite dehumidifier |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800723A (en) * | 2018-07-09 | 2018-11-13 | 上海云懋空气处理设备有限公司 | A kind of energy-saving dehumidification system for runner for low temperature and low humidity library |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179036A (en) * | 1999-12-27 | 2001-07-03 | Seibu Giken Co Ltd | Dehumidifier system |
| JP2002166124A (en) * | 2000-11-30 | 2002-06-11 | Seibu Giken Co Ltd | Adsorption type dehumidifier |
| CN1831438A (en) * | 2005-03-09 | 2006-09-13 | 三洋电机株式会社 | Air conditioner |
| CN102422089A (en) * | 2009-05-04 | 2012-04-18 | 百瑞空气工程(亚洲)有限公司 | Desiccant unit control system and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0777380A (en) * | 1993-09-08 | 1995-03-20 | Matsushita Refrig Co Ltd | Refrigerator |
| WO2008084528A1 (en) | 2007-01-10 | 2008-07-17 | Mitsubishi Electric Corporation | Refrigerating apparatus |
| CN201168542Y (en) * | 2008-03-11 | 2008-12-24 | 中国林业科学研究院林产化学工业研究所 | Apparatus for continuously preparing low dew point low temperature drying air |
| CN201171959Y (en) * | 2008-03-26 | 2008-12-31 | 范良凯 | Efficient air dehumidifier |
| KR100943285B1 (en) * | 2009-06-01 | 2010-02-23 | (주)에이티이엔지 | Hybrid desiccant dehumidification apparatus and threrof control method |
| JP2011214740A (en) * | 2010-03-31 | 2011-10-27 | Yamatake Corp | Adsorbing/desorbing device and method of monitoring adsorbate exchange state |
-
2014
- 2014-02-20 JP JP2014030388A patent/JP6321398B2/en active Active
-
2015
- 2015-01-15 TW TW104101285A patent/TWI640733B/en active
- 2015-02-17 KR KR1020150023990A patent/KR102242190B1/en active IP Right Grant
- 2015-02-25 CN CN201510087820.3A patent/CN104857818B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179036A (en) * | 1999-12-27 | 2001-07-03 | Seibu Giken Co Ltd | Dehumidifier system |
| JP2002166124A (en) * | 2000-11-30 | 2002-06-11 | Seibu Giken Co Ltd | Adsorption type dehumidifier |
| CN1831438A (en) * | 2005-03-09 | 2006-09-13 | 三洋电机株式会社 | Air conditioner |
| CN102422089A (en) * | 2009-05-04 | 2012-04-18 | 百瑞空气工程(亚洲)有限公司 | Desiccant unit control system and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120747A (en) * | 2017-05-27 | 2017-09-01 | 河南理工大学 | The anti-defrosting system of net for air-source heat pump units dry-air blast and its method of work |
| CN110925902A (en) * | 2019-11-22 | 2020-03-27 | 珠海格力电器股份有限公司 | Low dew point composite dehumidifier |
| CN110925902B (en) * | 2019-11-22 | 2021-02-19 | 珠海格力电器股份有限公司 | Low dew point composite dehumidifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104857818B (en) | 2019-03-22 |
| TW201541041A (en) | 2015-11-01 |
| KR20150098591A (en) | 2015-08-28 |
| JP6321398B2 (en) | 2018-05-09 |
| JP2015155081A (en) | 2015-08-27 |
| KR102242190B1 (en) | 2021-04-20 |
| TWI640733B (en) | 2018-11-11 |
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