CN110726189A - Two-stage cooling and dehumidifying device - Google Patents
Two-stage cooling and dehumidifying device Download PDFInfo
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- CN110726189A CN110726189A CN201911116194.0A CN201911116194A CN110726189A CN 110726189 A CN110726189 A CN 110726189A CN 201911116194 A CN201911116194 A CN 201911116194A CN 110726189 A CN110726189 A CN 110726189A
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- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 41
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- 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
- F24F3/1405—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 in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-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
- F24F5/0007—Air-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
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a two-stage cooling and dehumidifying device which comprises a first compressor, a second compressor, an indoor side condenser, a first evaporator and a second evaporator which are arranged on an indoor side, and an outdoor side first condenser and an outdoor side second condenser which are arranged on an outdoor side, wherein the first compressor, the outdoor side first condenser, the indoor side condenser and the first evaporator form a first refrigeration cycle loop, and the second compressor, the outdoor side second condenser and the second evaporator form a second refrigeration cycle loop. The invention has simple principle and simple and convenient control, and the double systems can be operated independently or simultaneously according to the air treatment requirement.
Description
Technical Field
The invention relates to the field of air conditioning equipment, in particular to a two-stage cooling and dehumidifying device.
Background
There are two main types of current air conditioning equipment: firstly, single-stage hits refrigeration, heating system air handling unit, and the dehumidification is as auxiliary function, because of the in-process that only the evaporimeter dehumidified again of indoor side, and indoor temperature can progressively reduce, and dehumidification effect reduces, and single-stage refrigeration air cooling dehumidification ability is limited. And secondly, the dehumidifier is used for dehumidifying, and then the air conditioning system is used for controlling the temperature, so that two devices are needed, the operation is complex and the operation cost is high.
The invention aims to provide a double-stage cooling and dehumidifying device to solve the problems of the prior art air conditioning equipment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a doublestage cooling dehydrating unit which characterized in that: the air conditioner comprises a first compressor, a second compressor, an indoor side condenser, a first evaporator, a second evaporator, an outdoor side first condenser and an outdoor side second condenser, wherein the indoor side condenser, the first evaporator and the second evaporator are arranged on the indoor side, the outdoor side first condenser and the outdoor side second condenser are arranged on the outdoor side, the outdoor side first condenser is provided with a first condensing fan, the outdoor side second condenser is provided with a second condensing fan, the first evaporator, the indoor side condenser and the second evaporator are sequentially arranged in an indoor mode and share the fans, the first compressor, the outdoor side first condenser, the indoor side condenser and the first evaporator are connected through a pipeline loop to form a first refrigeration cycle loop, and the indoor side condenser is used for improving the air temperature processed by the first evaporator in the first refrigeration cycle loop; the second compressor, the outdoor side second condenser and the second evaporator are connected through a pipeline loop to form a second refrigeration cycle loop.
The double-stage cooling and dehumidifying device is characterized in that: in the first refrigeration cycle loop, the outlet end of the first compressor is connected with the inlet end of the first outdoor condenser through a pipeline, the outlet end of the first outdoor condenser is connected with the inlet end of the indoor condenser through a pipeline, the outlet end of the indoor condenser is connected with the inlet end of the first evaporator through a pipeline, and the outlet end of the first evaporator is connected with the inlet end of the first compressor through a pipeline, so that loop connection is formed.
The double-stage cooling and dehumidifying device is characterized in that: in the first refrigeration cycle loop, a first throttle valve is connected to a pipeline between the indoor side condenser and the first evaporator in a communicating mode.
The double-stage cooling and dehumidifying device is characterized in that: in the second refrigeration cycle loop, the outlet end of the second compressor is connected with the inlet end of the outdoor second condenser through a pipeline, the outlet end of the outdoor second condenser is connected with the inlet end of the second evaporator through a pipeline, and the outlet end of the second evaporator is connected with the inlet end of the second compressor through a pipeline, so that loop connection is formed.
The double-stage cooling and dehumidifying device is characterized in that: in the second refrigeration cycle loop, a second throttle valve is communicated and connected with a pipeline between the second condenser and the second evaporator on the outdoor side.
The double-stage cooling and dehumidifying device is characterized in that: the first evaporator and the second evaporator are respectively provided with a temperature sensor.
The double-stage cooling and dehumidifying device is characterized in that: an electric heater is adopted in the first refrigeration cycle loop to replace an indoor side condenser to improve the air temperature after being processed by the first evaporator, wherein the first compressor, the outdoor side first condenser and the first evaporator in the first refrigeration cycle loop are connected through a pipeline loop to form a loop, the first evaporator and the second evaporator are sequentially arranged and arranged in an indoor environment and share a fan, and the electric heater is arranged between the first evaporator and the second evaporator.
The invention adopts a two-stage cooling and dehumidifying principle, a double-refrigeration system is arranged in the device, and the operation of the refrigeration system is controlled through a temperature sensor, so that the purposes of deep cooling and dehumidification at the indoor side are achieved.
The external system can control the operation of the refrigeration circulation systems based on the signals of the temperature sensors at the first evaporator and the second evaporator, and the two refrigeration circulation systems can be operated independently or simultaneously according to the air treatment requirement. The indoor condenser or electric heater in the first set of refrigeration cycle system functions when the dual system is in operation: the air temperature after the first evaporator is improved, and the second evaporator is more favorable for cooling and dehumidifying.
The invention has the beneficial effects that:
1. the principle is simple, and the control is simple and convenient.
2. The dual systems operate individually or simultaneously depending on air handling requirements.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention in which an electric heater is used instead of an indoor condenser.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in FIG. 1, a two-stage cooling and dehumidifying device comprises a first compressor 1, a second compressor 8, an indoor side condenser 4, a first evaporator 7, a second evaporator 14 arranged at the indoor side, and an outdoor side first condenser 2, an outdoor side second condenser 9 arranged at the outdoor side, the first condenser 2 on the outdoor side is provided with a first condensing fan 3, the second condenser 9 on the outdoor side is provided with a second condensing fan 10, the first evaporator 7, the indoor side condenser 4 and the second evaporator 14 are sequentially arranged in an indoor space and share a fan 13, the first compressor 1, the first condenser 2 on the outdoor side, the indoor side condenser 4 and the first evaporator 7 are connected through a pipeline loop to form a first refrigeration cycle loop, and the second compressor 8, the second condenser 9 on the outdoor side and the second evaporator 14 are connected through a pipeline loop to form a second refrigeration cycle loop.
In the first refrigeration cycle loop, the outlet end of the first compressor 1 is connected with the inlet end of the first outdoor condenser 2 through a pipeline, the outlet end of the first outdoor condenser 2 is connected with the inlet end of the indoor condenser 4 through a pipeline, the outlet end of the indoor condenser 4 is connected with the inlet end of the first evaporator 7 through a pipeline, and the outlet end of the first evaporator 7 is connected with the inlet end of the first compressor 1 through a pipeline, so that loop connection is formed.
In the first refrigeration cycle loop, a first throttle valve 6 is connected in a pipeline communication way between the indoor side condenser 4 and the first evaporator 7.
In the second refrigeration cycle loop, the outlet end of the second compressor 8 is connected with the inlet end of the outdoor side second condenser 9 through a pipeline, the outlet end of the outdoor side second condenser 9 is connected with the inlet end of the second evaporator 14 through a pipeline, and the outlet end of the second evaporator 14 is connected with the inlet end of the second compressor 8 through a pipeline, so that loop connection is formed.
In the second refrigeration cycle circuit, a second throttle valve is connected to a pipe between the second condenser 9 and the second evaporator 14 on the outdoor side.
The first evaporator 7 is provided with a temperature sensor 5, and the second evaporators 14 are each provided with a temperature sensor 12.
As shown in fig. 2, the first refrigeration cycle circuit of the present invention may further employ an electric heater 15 instead of the indoor condenser 4 to raise the temperature of the air processed by the first evaporator 7, wherein the first compressor 1, the outdoor first condenser 2 and the first evaporator 7 in the first refrigeration cycle circuit are connected by a pipeline circuit to form a circuit, the first throttle valve 6 is connected to a pipeline between the outdoor first condenser 2 and the first evaporator 7, the first evaporator 7 and the second evaporator 14 are sequentially arranged in the room and share a fan 13, and the electric heater 4 is disposed between the first evaporator 7 and the second evaporator 14.
The specific control flow of the principle of the invention is as follows:
single-stage refrigeration working process: firstly, the fan 13 is started, and the second set of refrigeration system operates when the temperature sensor 12 detects that the air temperature is higher than the set temperature: the second condenser fan 10 is started and the second compressor 8 is started with a delay.
Two-stage refrigeration working process: when the temperature sensor 12 detects that the air temperature is still higher than the set temperature after the single-stage refrigeration operation, the first set of refrigeration system operates in a delayed mode: the first condensing fan 3 is started, and the first compressor 1 is started in a delayed mode. The indoor condenser 4 or electric heater in the first set of refrigeration system functions when the dual system is in operation: the temperature of the air processed by the first evaporator 7 is increased, which is more beneficial to the cooling and dehumidifying work of the second evaporator 13.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present patent and do not limit the scope of the patent, and various modifications and improvements of the technical solutions of the present patent made by those skilled in the art without departing from the spirit of the patent design should fall within the protection scope defined by the claims of the present invention.
Claims (7)
1. The utility model provides a doublestage cooling dehydrating unit which characterized in that: the air conditioner comprises a first compressor, a second compressor, an indoor side condenser, a first evaporator, a second evaporator, an outdoor side first condenser and an outdoor side second condenser, wherein the indoor side condenser, the first evaporator and the second evaporator are arranged on the indoor side, the outdoor side first condenser and the outdoor side second condenser are arranged on the outdoor side, the outdoor side first condenser is provided with a first condensing fan, the outdoor side second condenser is provided with a second condensing fan, the first evaporator, the indoor side condenser and the second evaporator are sequentially arranged in an indoor mode and share the fans, the first compressor, the outdoor side first condenser, the indoor side condenser and the first evaporator are connected through a pipeline loop to form a first refrigeration cycle loop, and the indoor side condenser is used for improving the air temperature processed by the first evaporator in the first refrigeration cycle loop; the second compressor, the outdoor side second condenser and the second evaporator are connected through a pipeline loop to form a second refrigeration cycle loop.
2. The dual stage cooling and dehumidifying device of claim 1, wherein: in the first refrigeration cycle loop, the outlet end of the first compressor is connected with the inlet end of the first outdoor condenser through a pipeline, the outlet end of the first outdoor condenser is connected with the inlet end of the indoor condenser through a pipeline, the outlet end of the indoor condenser is connected with the inlet end of the first evaporator through a pipeline, and the outlet end of the first evaporator is connected with the inlet end of the first compressor through a pipeline, so that loop connection is formed.
3. The dual stage cooling and dehumidifying device of claim 2, wherein: in the first refrigeration cycle loop, a first throttle valve is connected to a pipeline between the indoor side condenser and the first evaporator in a communicating mode.
4. The dual stage cooling and dehumidifying device of claim 1, wherein: in the second refrigeration cycle loop, the outlet end of the second compressor is connected with the inlet end of the outdoor second condenser through a pipeline, the outlet end of the outdoor second condenser is connected with the inlet end of the second evaporator through a pipeline, and the outlet end of the second evaporator is connected with the inlet end of the second compressor through a pipeline, so that loop connection is formed.
5. The dual stage cooling and dehumidifying device of claim 4, wherein: in the second refrigeration cycle loop, a second throttle valve is communicated and connected with a pipeline between the second condenser and the second evaporator on the outdoor side.
6. The dual stage cooling and dehumidifying device of claim 1, wherein: the first evaporator and the second evaporator are respectively provided with a temperature sensor.
7. The dual stage cooling and dehumidifying device of claim 1, wherein: an electric heater is adopted in the first refrigeration cycle loop to replace an indoor side condenser to improve the air temperature after being processed by the first evaporator, wherein the first compressor, the outdoor side first condenser and the first evaporator in the first refrigeration cycle loop are connected through a pipeline loop to form a loop, the first evaporator and the second evaporator are sequentially arranged and arranged in an indoor environment and share a fan, and the electric heater is arranged between the first evaporator and the second evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911116194.0A CN110726189B (en) | 2019-11-15 | 2019-11-15 | Doublestage cooling dehydrating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911116194.0A CN110726189B (en) | 2019-11-15 | 2019-11-15 | Doublestage cooling dehydrating unit |
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| Publication Number | Publication Date |
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| CN110726189A true CN110726189A (en) | 2020-01-24 |
| CN110726189B CN110726189B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911116194.0A Active CN110726189B (en) | 2019-11-15 | 2019-11-15 | Doublestage cooling dehydrating unit |
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| CN (1) | CN110726189B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486608A (en) * | 2020-05-25 | 2020-08-04 | 合肥天鹅制冷科技有限公司 | High-supercharging air supply cooling device |
| CN111829066A (en) * | 2020-07-27 | 2020-10-27 | 合肥天鹅制冷科技有限公司 | Anti-heating structure of dehumidifier |
| CN114738832A (en) * | 2022-03-22 | 2022-07-12 | 青岛海尔空调电子有限公司 | Direct expansion type air conditioning system and control method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970007126A (en) * | 1995-07-10 | 1997-02-21 | 구자홍 | Constant temperature dehumidifier of reheat air conditioner |
| KR100572917B1 (en) * | 2005-01-13 | 2006-04-24 | 한국공조기술개발(주) | Dehumidification and freezing circuit saving power having double cooling construction |
| CN101358760A (en) * | 2008-09-09 | 2009-02-04 | 广东美的电器股份有限公司 | Double-compressor and double-system outdoor machine of air-conditioner |
| CN201522044U (en) * | 2009-10-21 | 2010-07-07 | 山东安赛尔环境控制有限公司 | Dual-system air conditioning unit |
| CN201621785U (en) * | 2010-02-25 | 2010-11-03 | 熊晓强 | Two-stage dehumidifier |
| JP2011230095A (en) * | 2010-04-30 | 2011-11-17 | Orion Machinery Co Ltd | Compressed air dehumidifier and control method for compressed air dehumidifier |
| CN107062443A (en) * | 2016-12-28 | 2017-08-18 | 冯新华 | Twin-stage dehumidification type temperature-adjustable dehumidifier |
| KR20180019041A (en) * | 2016-08-15 | 2018-02-23 | 주식회사 혜경 | Multi heat pump Refrigeration system |
| CN110243096A (en) * | 2019-06-14 | 2019-09-17 | 合肥天鹅制冷科技有限公司 | A kind of dual system refrigeration equipment for military movable square compartment |
| CN211011673U (en) * | 2019-11-15 | 2020-07-14 | 合肥天鹅制冷科技有限公司 | Two-stage cooling and dehumidifying device |
-
2019
- 2019-11-15 CN CN201911116194.0A patent/CN110726189B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970007126A (en) * | 1995-07-10 | 1997-02-21 | 구자홍 | Constant temperature dehumidifier of reheat air conditioner |
| KR100572917B1 (en) * | 2005-01-13 | 2006-04-24 | 한국공조기술개발(주) | Dehumidification and freezing circuit saving power having double cooling construction |
| CN101358760A (en) * | 2008-09-09 | 2009-02-04 | 广东美的电器股份有限公司 | Double-compressor and double-system outdoor machine of air-conditioner |
| CN201522044U (en) * | 2009-10-21 | 2010-07-07 | 山东安赛尔环境控制有限公司 | Dual-system air conditioning unit |
| CN201621785U (en) * | 2010-02-25 | 2010-11-03 | 熊晓强 | Two-stage dehumidifier |
| JP2011230095A (en) * | 2010-04-30 | 2011-11-17 | Orion Machinery Co Ltd | Compressed air dehumidifier and control method for compressed air dehumidifier |
| KR20180019041A (en) * | 2016-08-15 | 2018-02-23 | 주식회사 혜경 | Multi heat pump Refrigeration system |
| CN107062443A (en) * | 2016-12-28 | 2017-08-18 | 冯新华 | Twin-stage dehumidification type temperature-adjustable dehumidifier |
| CN110243096A (en) * | 2019-06-14 | 2019-09-17 | 合肥天鹅制冷科技有限公司 | A kind of dual system refrigeration equipment for military movable square compartment |
| CN211011673U (en) * | 2019-11-15 | 2020-07-14 | 合肥天鹅制冷科技有限公司 | Two-stage cooling and dehumidifying device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486608A (en) * | 2020-05-25 | 2020-08-04 | 合肥天鹅制冷科技有限公司 | High-supercharging air supply cooling device |
| CN111829066A (en) * | 2020-07-27 | 2020-10-27 | 合肥天鹅制冷科技有限公司 | Anti-heating structure of dehumidifier |
| CN114738832A (en) * | 2022-03-22 | 2022-07-12 | 青岛海尔空调电子有限公司 | Direct expansion type air conditioning system and control method thereof |
| CN114738832B (en) * | 2022-03-22 | 2024-06-07 | 青岛海尔空调电子有限公司 | Direct expansion type air conditioning system and control method thereof |
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| CN110726189B (en) | 2024-05-14 |
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