CN101788214B - Air conditioning condenser - Google Patents
Air conditioning condenser Download PDFInfo
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- CN101788214B CN101788214B CN2009101890832A CN200910189083A CN101788214B CN 101788214 B CN101788214 B CN 101788214B CN 2009101890832 A CN2009101890832 A CN 2009101890832A CN 200910189083 A CN200910189083 A CN 200910189083A CN 101788214 B CN101788214 B CN 101788214B
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Abstract
The invention discloses an air conditioning condenser, which comprises a heat exchanger connected between a compressor and a throttling device through a pipeline, and a control device, wherein the heat exchanger is a micro-channel heat exchanger correspondingly provided with a draught fan with adjustable rotating speed; and the pipeline between the heat exchanger and the throttling device is connected with a storage and adjustment device used for storing a backflow refrigerant and adjusting the condensing pressure of the refrigerant in the pipeline. The invention provides the air conditioning condenser, which can be adjusted on an air side and a refrigerant side at the same time, has high heat exchange efficiency and a compact structure and can enable an air conditioning system to be normally started and run at a very low temperature.
Description
Technical field
The invention belongs to refrigeration technology field, relate to a kind of condenser, relate in particular to a kind of air conditioning condenser.
Background technology
Air-conditioning system generally includes compressor, evaporimeter, throttling arrangement, condenser and control system.At present, the means that cut down the consumption of energy, improve efficiency mainly are to excavate the potentiality and the system matches of compressor.Condenser is as thermal component, and effect and energy consumption in whole air-conditioning system all can not be ignored, and the raising of condenser efficiency is significant equally for optimizing whole air-conditioning system.Most in the market condensers still adopt traditional copper tube and fin formula; The major defect of this condenser is: cost is high, windage is big, weight is big, heat exchange efficiency is lower, the unit volume heat is little, charging amount cold-producing medium is big; And when condenser is scrapped, reclaim inconvenient.When ambient temperature changed, system was stable for assurance, required condensing pressure to be maintained within a certain range, and in addition, to such condenser, its control mode mainly contains two kinds: 1, control from air side.Comprise start and stop control and the rotational speed regulation control of blower fan, 2, control from refrigerant side.Adopt the control of condensation pressure regulation valve.The shortcoming that these two kinds of control modes exist is: when ambient temperature changes; The system mode fluctuation is bigger; And these two kinds of control modes can only guarantee that system adjusts in small range; The minimum temperature that can reach like blower fan start and stop control is 20 ℃, and the minimum temperature that fan speed regulation control can reach is-15 ℃.But at northern area, the environment temperature in season in severe winter usually can be lower than-20 ℃.Under such environment temperature, only can't keep system's operate as normal through the mode of above-mentioned adjusting rotation speed of fan.Though adopt the mode of condensation pressure regulation valve control, can solve the problem of system's operate as normal under the low temperature, its pipe-line system is complicated; Valve member also lost efficacy easily, and the adjusting that the variation of load brings all is to be cost to reduce efficiency, and is particularly abominable when cold operation; On the one hand blower fan running at full capacity, condensing pressure is low excessively, and a large amount of hot gas supplementary pressures of bypass on the other hand; Two conflicting processes have caused the extreme of energy to expend, and efficiency reduces.And the shutdown under the low temperature is restarted reliability and is difficult to guarantee.
Summary of the invention
The technical problem that the present invention will solve is in the prior art; When air side is controlled; Start and stop control and rotational speed regulation control through blower fan can't realize the problem than low ambient temperature system operate as normal; When refrigerant side is controlled; Adopt the pipe-line system of condensation pressure regulation valve complicated, efficiency is lower, difficult problem is restarted in low temperature shutdown down, that the adjusting of a kind of air side and refrigerant side combines, heat exchange efficiency height, compact conformation are provided, can satisfy the air conditioning condenser that air-conditioning system under the low temperature normally starts operation very much.
The present invention solves above-mentioned technical problem through following technical scheme: a kind of air conditioning condenser; Comprise control device, be connected the heat exchanger between compressor and the throttling arrangement through pipeline; Said heat exchanger is a micro-channel heat exchanger; The micro-channel heat exchanger correspondence is provided with the blower fan of rotating speed adjustable, is connected with the storage adjusting device that is used for storing backflow refrigerant and regulates pipeline condensation of refrigerant pressure on heat exchanger and the throttling arrangement pipeline between the two.
Described storage adjusting device comprise with heat exchanger and throttling arrangement between the reservoir that is connected of pipeline, the heater that reservoir is heated.
Said control device is included in the interior liquid storage sensor that is provided with of system pressure sensor, reservoir, the rotation speed of fan controller that is used to control rotation speed of fan that is provided with on the pipeline before the micro-channel heat exchanger, the heating controller that is used to control the reservoir heating; Described system pressure sensor is electrically connected with the rotation speed of fan controller, and said liquid storage sensor is electrically connected with heating controller.
Said liquid storage sensor is the liquid storage pressure sensor or the pressure switch that are used for detecting the reservoir refrigerant pressure, be used for detecting at least a in liquid storage temperature sensor or the temperature switch of reservoir refrigerant temperature.
Pipeline before the said reservoir import is provided with and is used for the check valve that restrict refrigerant only flows to reservoir.
On the pipeline before the micro-channel heat exchanger, be provided with the shunt valve that leads to reservoir, said shunt valve is provided with volume control device.
Another kind of scheme is: on the pipeline between heat exchanger and the reservoir, be provided with the condensation pressure regulation device, on the pipeline before the heat exchanger, be linked with shunt valve, the other end UNICOM condensation pressure regulation device of said shunt valve.
Pipeline UNICOM before said shunt valve and the check valve inlet.
The mode that the control of system condensing pressure of the present invention adopts air side to combine with refrigerant side; Air side control is to realize through the blower fan of adjustable rotating speed; Refrigerant side control realizes that through storing adjusting device the employing of two kinds of control modes has solved the operation problem than the low ambient temperature system.And two kinds of control modes are to be optimized setting through a minute warm area; Both guaranteed the operation normal and stable of condenser when environment temperature is very low; Can guarantee the high efficiency moved again, the ambient temperature that the present invention adapts to can reach-40 ℃, and this is that prior art is difficult to reach.Specifically, the present invention has adopted micro-channel heat exchanger (also claiming parallel-flow heat exchanger), and heat exchanger has compact conformation, charging amount is little, heat exchange efficiency is high, identical heat is in light weight, volume is little, cost is low advantage.The ventilation unit that cooperates with micro-channel heat exchanger adopts the blower fan of rotating speed adjustable, but this blower fan flexible adaptation load change, and when falling the rotating speed operation, fan efficiency is constant basically, thereby makes condenser efficiency improve greatly.On the pipeline between heat exchanger and the throttling arrangement, be connected with the storage adjusting device; This device is used to store backflow refrigerant on the one hand; Can adjust the pressure of stored backflow refrigerant on the other hand; Thereby condensation of refrigerant pressure in the adjusting pipeline makes it reach normal operating pressure, and system starts and operate as normal under the satisfied very low temperature.
Store the heater that adjusting device is included in the reservoir that connects on the pipeline between heat exchanger and the throttling arrangement, reservoir is heated.The setting of reservoir and heater has guaranteed the stability of cold operation and the reliability that the following shutdown of worst cold case is restarted; Another of reservoir important function is, and is out of service when refrigeration system, can cold-producing medium all be extracted into off-premises station and store, and not only is convenient to the maintenance of indoor set but also avoided too much refrigerant liquid to accumulate in compressor and caused back liquid.Micro-channel heat exchanger is difficult to satisfy this application because internal volume is limited, and increasing reservoir can address this problem.
The check valve that before the reservoir import, is provided with has guaranteed to shut down the back cold-producing medium and has been stored in the reservoir, the migration of cold-producing medium in the lower heat exchanger of temperature when having avoided shutting down.
When air-conditioning restarts under low temperature very, can lean on heater to improve the pressure of cold-producing medium in the reservoir, make system set up high pressure faster, guarantee to restart reliability.
In order to reduce the heating energy consumption; On the pipeline before the micro-channel heat exchanger, be provided with the shunt valve that leads to reservoir; The refrigerant gas of HTHP will directly get in the reservoir behind the heat exchanger through shunt valve, because the mixing of superheated steam, the pressure in the reservoir raises; Thereby the cold-producing medium that makes heat exchanger flow to reservoir reduces; The gathering of a large amount of cold-producing mediums in the heat exchanger and make condensing pressure go up, when the bypass amount of cold-producing medium acquires a certain degree, the interior pressure of reservoir and heat exchanger all can go back up to the state of operate as normal; Volume control device that on shunt valve, is provided with or condensation pressure regulation device are used to adjust the refrigerant amount that gets into reservoir, have guaranteed the air-conditioning system operate as normal.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3.
The specific embodiment
Among the present invention, be that the flow direction with cold-producing medium in the pipeline defines fore-and-aft direction, after the direction identical with flow direction is defined as, before the direction opposite with flow direction is defined as.
The operating mode that the present invention is higher environment temperature, condenser can normally move under the situation of not carrying out any extraneous control calls summer condition; Reduce environment temperature, condenser need could the normal operating mode of moving be called winter condition through regulating rotation speed of fan; Very low environment temperature, condenser need be through regulating rotation speed of fan and carrying out condensing pressure control, and perhaps the by-passing part cold-producing medium could the normal operating mode of moving be called worst cold case.
Embodiment 1, as shown in Figure 1; A kind of air conditioning condenser; Comprise through pipeline and be connected heat exchanger 101, control device between compressor and the throttling arrangement; Said heat exchanger 101 is a micro-channel heat exchanger, and the micro-channel heat exchanger correspondence is provided with the blower fan 102 of rotating speed adjustable, on the pipeline between heat exchanger 101 and the throttling arrangement, is connected with the storage adjusting device that is used for storing backflow refrigerant and regulates pipeline condensation of refrigerant pressure.Described storage adjusting device comprise with heat exchanger 101 and throttling arrangement between the reservoir 104 that is connected of pipeline 2,3, the heater 105 that reservoir 104 is heated.Blower fan can select dc fan also can select AC blower fan, wherein is equipped with the blower fan of dc brushless motor, and the relative AC blower fan of efficient can improve 30%.
Said control device is included in system pressure sensor 106, reservoir 104 interior liquid storage sensor, rotation speed of fan controller 103, the heating controllers 107 that are provided with that are provided with on the pipeline 1 before the micro-channel heat exchanger; Wherein rotation speed of fan controller 103 is fixed on the structural member lateral wall that supports heat exchanger 101, and heating controller 107 is fixed on reservoir 104 lateral walls.System pressure sensor 106 is electrically connected with rotation speed of fan controller 103, and rotation speed of fan controller 103 also is connected with blower fan 102 and is used to control blower fan 102 rotating speeds, and the liquid storage sensor is electrically connected with heating controller 107, is used to control reservoir 104 heating.The liquid storage sensor that present embodiment is selected is the liquid storage temperature sensor 111 that is used for detecting reservoir 104 refrigerant temperatures, perhaps selects the serviceability temperature switch.If adopt the mode of detected pressures, the liquid storage sensor can also select to be used for detecting the liquid storage pressure sensor or the pressure switch of reservoir 104 refrigerant pressures.Pipeline 2 before reservoir 104 imports is provided with and is used for the check valve 109 that restrict refrigerant only flows to reservoir.
The condenser running:
1, summer condition: from the high-temperature high-pressure refrigerant of compressor; All get in the heat exchanger 101 and carry out exchange heat through pipeline 1; The cold-producing medium release heat, condensation becomes liquid under certain pressure, and condensed cold-producing medium is via pipeline 2; The check valve 109 of flowing through gets into reservoir 104, goes to throttling arrangement through pipeline 3 at last and participates in kind of refrigeration cycle.This moment is because environment temperature is higher, blower fan 102 full-speed operations, and the pressure of the heat exchanger that detects through system pressure sensor 106 will maintain a more stable scope.
2, winter condition: from the high-temperature high-pressure refrigerant of compressor; All get into release heat in the heat exchanger 101 through pipeline 1; Condensation becomes liquid under certain pressure; Condensed cold-producing medium is via pipeline 2, and the check valve 109 of flowing through gets into reservoir 104, goes to throttling arrangement through pipeline 2 at last and participates in kind of refrigeration cycle.When environment temperature reduces, because blower fan 102 full-speed operations, the condensing pressure in the heat exchanger will decrease; This pressure signal will feed back to rotation speed of fan controller 103 through system pressure sensor 106; When condensing pressure is lower than a certain setting value, rotation speed of fan controller 103 will send instruction, reduce the rotating speed of blower fan 102 simultaneously; Detect condensing pressure until system pressure sensor 106 and return to normal range (NR); Blower fan 102 will maintain the rotating speed operation down after the adjusting, and condensing pressure also will maintain in the more stable scope, so just guarantee the refrigeration system operate as normal that is connected with condenser of the present invention.If environment temperature continues to reduce, when reducing once more through system pressure sensor 106 detected condensing pressures, rotation speed of fan controller 103 will send instruction once more, further reduce rotation speed of fan, recover normal until condensing pressure.
3, worst cold case: from the high-temperature high-pressure refrigerant of compressor, most of condensation becomes liquid under certain pressure through release heat in the gas exhaust piping 1 entering heat exchanger 101, and condensed cold-producing medium gets into reservoir 104 via pipeline 2.The present invention is provided with the minimum speed of blower fan 102 operation, when environment temperature reduces and when regulating blower fan 102 rotating speeds and reaching minimum speed, blower fan 102 will remain on minimum speed under and move.If this moment, environment temperature was low excessively, also be not enough to keep condensing pressure when the normal value through blower fan 102 speed governing, blower fan 102 will continue down move at the minimum speed of setting.When the heating controller 107 of control heater detects the reservoir temperature and is lower than setting value through liquid storage temperature sensor 111; Heater 105 is opened; Pressure in the reservoir 104 will raise, and the cold-producing medium that heat exchanger 101 flows to reservoir 104 reduces, the gathering of a large amount of cold-producing mediums in the heat exchanger 101 and make the condensing pressure rise; Until the state that reaches operate as normal, this has just guaranteed the refrigeration system operate as normal that is attached thereto.
Under the lower situation of environment temperature, the heater 105 of setting of the present invention has also guaranteed to shut down the reliability that restarts.The refrigeration system that is connected with condenser of the present invention is after shutdown; Because the effect of low temperature environment; The temperature and pressure of refrigeration system all can reduce, and in reservoir, is provided with liquid storage temperature sensor 111, and liquid storage temperature sensor 111 detects the temperature of reservoir 104 inner refrigerants; This temperature signal is transferred to heating controller 107, and whether heating controller 107 control heaters 105 start.Be lower than setting value when liquid storage temperature sensor 111 detects the reservoir temperature, heater 105 is started working, and with the heating of the liquid refrigerant in the reservoir 104 vaporization, reservoir 104 internal pressures raise gradually, guarantee that the pressure in the reservoir 104 maintains setting value.Be higher than setting value when heating controller 107 detects the reservoir temperature, or pressure is higher than setting value, heater 105 quits work.
The condenser running:
1, summer condition is identical with embodiment 1, repeats no more at this.
2, winter condition: from the high-temperature high-pressure refrigerant of compressor; All get into release heat in the heat exchanger 101 through pipeline; Condensation becomes liquid under certain pressure, and condensed cold-producing medium is via pipeline 2, and the check valve 109 of flowing through gets into reservoir 104; Go to throttling arrangement through pipeline 3 at last and participate in kind of refrigeration cycle, bypass line 4 is not worked.When environment temperature reduces, because blower fan 102 full-speed operations, the condensing pressure in the heat exchanger 101 will decrease; The signal of condensing pressure is transferred to rotation speed of fan controller 103 in the system pressure sensor 106 detected systems; When the condensing pressure that detects was lower than a certain setting value, rotation speed of fan controller 103 sent instruction, reduced the rotating speed of blower fan 102; Detect condensing pressure until system pressure sensor 106 and return to normal range (NR); Blower fan 102 will maintain the rotating speed operation down after the adjusting, and condensing pressure also will maintain in the more stable scope, so just guarantee the refrigeration system operate as normal that is connected with this condenser.If environment temperature continues to reduce, when reducing once more through system pressure sensor 106 detected condensing pressures, rotation speed of fan controller 103 will send instruction once more, further reduce rotation speed of fan, recover normal until condensing pressure.
3, worst cold case: from the high-temperature high-pressure refrigerant of compressor; Most of through release heat in the gas exhaust piping 1 entering heat exchanger 101; Condensation becomes liquid under certain pressure, and condensed cold-producing medium is via pipeline 2, and the check valve 109 of flowing through gets into reservoir 104.The present invention is provided with the minimum speed of blower fan 102 operation, when environment temperature reduces and when regulating blower fan 102 rotating speeds and reaching minimum speed, blower fan 102 will remain on minimum speed under and move.If because environment temperature is low excessively, also be not enough to keep condensing pressure at normal value through blower fan 102 speed governing, blower fan 102 will continue operation under the minimum speed of setting; Volume control device 110 on the bypass line 4 is opened when the pressure that detects system is lower than setting value, and then the refrigerant gas of another part HTHP will be through the volume control device on the bypass line 4 110, the check valve 109 of flowing through; Directly in the reservoir 104 behind the entering heat exchanger; Because the mixing of superheated steam, the pressure in the reservoir 104 will raise, thereby the cold-producing medium that makes heat exchanger 101 flow to reservoir 104 reduces; The gathering of a large amount of cold-producing mediums in the heat exchanger 101 and make condensing pressure go up; When the bypass amount of cold-producing medium acquires a certain degree, reservoir 104 and the pressure in the heat exchanger 101 all can go back up to the state of operate as normal, and volume control device 110 is closed when detection system pressure returns to setting value; Under worst cold case; Because ambient temperature is very low, volume control device 110 is in the duty of unlatching always, and this has just guaranteed the refrigeration system operate as normal that is attached thereto.
In the time of volume control device 110 work; The temperature that the liquid storage temperature sensor 111 that in reservoir 104, is provided with detects reservoir 104 inner refrigerants is lower than setting value; Heater 105 is started working; With the heating of the liquid refrigerant in the reservoir 104 vaporization, reservoir 104 internal pressures raise gradually, guarantee that the pressure in the reservoir 104 maintains setting value.Be higher than setting value when liquid storage temperature sensor 111 detects the reservoir temperature, heating controller 107 control heaters 105 quit work.
The condenser running:
1, summer condition is identical with embodiment 1, repeats no more at this.
2, winter condition: from the high-temperature high-pressure refrigerant of compressor; All get into release heat in the heat exchanger 101 through pipeline 1; Condensation becomes liquid under certain pressure, and condensed cold-producing medium is via pipeline 2, and the condensation pressure regulation of flowing through again device 108 gets into reservoir 104 with check valve 109; Go to throttling arrangement through pipeline 3 at last and participate in kind of refrigeration cycle, bypass line 4 is not worked.This moment is because environment temperature reduction and blower fan 102 full-speed operations; Pressure in the heat exchanger will decrease, and this pressure will feed back to rotation speed of fan controller 103 through system pressure sensor 106, cause refrigeration system can't operate as normal the time when condensing pressure is low excessively; Rotation speed of fan controller 103 will send instruction; Reduce the rotating speed of blower fan 102, detect condensing pressure until system pressure sensor 106 and return to normal range (NR), blower fan 102 will maintain the rotating speed operation down after the adjusting; And condensing pressure also will maintain in the more stable scope, so just guarantee the refrigeration system operate as normal that is connected with this condenser.If environment temperature continues to reduce, when reducing once more through system pressure sensor 106 detected condensing pressures, rotation speed of fan controller 103 will send instruction once more, further reduce rotation speed of fan, recover normal until condensing pressure.
3, worst cold case: from the high-temperature high-pressure refrigerant of compressor; Most of through release heat in the gas exhaust piping 1 entering heat exchanger 101; Condensation becomes liquid under certain pressure; Condensed cold-producing medium is via pipeline 2, and the condensation pressure regulation of flowing through again device 108 gets into reservoir 104 with check valve 109.The present invention is provided with the minimum speed of blower fan 102 operation, when environment temperature reduces and when regulating blower fan 102 rotating speeds and reaching minimum speed, blower fan 102 will remain on minimum speed under and move.This moment is because environment temperature is low excessively; Also be not enough to keep condensing pressure through blower fan 102 speed governing at normal value; Blower fan 102 will continue operation down at the minimum speed of setting, and condensation pressure regulation device 108 is controlled the refrigerant gas of a part of HTHP through the pressure differential on the perception pipeline 2,4 will be through shunt valve 4 directly in the reservoir 104 behind the entering heat exchangers, owing to the mixing of superheated steam; Pressure in the reservoir 104 will raise; Thereby the cold-producing medium that makes heat exchanger 101 flow to reservoir 104 reduces, and the gathering of a large amount of cold-producing mediums in the heat exchanger 101 and make condensing pressure go up is when the bypass amount of cold-producing medium acquires a certain degree; Reservoir 104 and the pressure in the heat exchanger 101 all can go back up to the state of operate as normal, and this has just guaranteed the refrigeration system operate as normal that is attached thereto.
In the time of 108 work of condensation pressure regulation device; The temperature that the liquid storage temperature sensor 111 that in reservoir 104, is provided with detects reservoir 104 inner refrigerants is lower than setting value; Heater 105 is started working; With the heating of the liquid refrigerant in the reservoir 104 vaporization, reservoir 104 internal pressures raise gradually, guarantee that the pressure in the reservoir 104 maintains setting value.Be higher than setting value when liquid storage temperature sensor 111 detects the reservoir temperature, heating controller 107 control heaters 105 quit work.
Claims (8)
1. air conditioning condenser; Comprise control device, be connected the heat exchanger between compressor and the throttling arrangement through pipeline; It is characterized in that; Said heat exchanger is a micro-channel heat exchanger; The micro-channel heat exchanger correspondence is provided with the blower fan of rotating speed adjustable, is connected with the storage adjusting device that is used for storing backflow refrigerant and regulates pipeline condensation of refrigerant pressure on heat exchanger and the throttling arrangement pipeline between the two, described storage adjusting device comprise with heat exchanger and throttling arrangement between the reservoir that is connected of pipeline, the heater that reservoir is heated.
2. air conditioning condenser according to claim 1; It is characterized in that; Said control device is included in the interior liquid storage sensor that is provided with of system pressure sensor, reservoir, the rotation speed of fan controller that is used to control rotation speed of fan that is provided with on the pipeline before the micro-channel heat exchanger, the heating controller that is used to control the reservoir heating; Described system pressure sensor is electrically connected with the rotation speed of fan controller, and said liquid storage sensor is electrically connected with heating controller.
3. air conditioning condenser according to claim 2 is characterized in that, said liquid storage sensor is liquid storage pressure sensor or the pressure switch that is used for detecting the reservoir refrigerant pressure;
Perhaps described liquid storage sensor is liquid storage temperature sensor or the temperature switch that is used for detecting the reservoir refrigerant temperature;
Perhaps described liquid storage sensor is described liquid storage pressure sensor or pressure switch, adds described liquid storage temperature sensor or temperature switch.
4. according to any described air conditioning condenser of claim 1～3, it is characterized in that the pipeline before the said reservoir import is provided with and is used for the check valve that restrict refrigerant only flows to reservoir.
5. air conditioning condenser according to claim 4 is characterized in that, on the pipeline before the micro-channel heat exchanger, is provided with the shunt valve that leads to reservoir, and said shunt valve is provided with volume control device.
6. air conditioning condenser according to claim 5 is characterized in that, the pipeline UNICOM before said shunt valve and the check valve inlet.
7. air conditioning condenser according to claim 4; It is characterized in that; On the pipeline between heat exchanger and the reservoir, be provided with the condensation pressure regulation device, on the pipeline before the heat exchanger, be linked with shunt valve, the other end UNICOM condensation pressure regulation device of said shunt valve.
8. air conditioning condenser according to claim 7 is characterized in that, the pipeline UNICOM before said shunt valve and the check valve inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101890832A CN101788214B (en) | 2009-12-18 | 2009-12-18 | Air conditioning condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101890832A CN101788214B (en) | 2009-12-18 | 2009-12-18 | Air conditioning condenser |
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| CN101788214A CN101788214A (en) | 2010-07-28 |
| CN101788214B true CN101788214B (en) | 2012-08-22 |
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| CN2009101890832A Active CN101788214B (en) | 2009-12-18 | 2009-12-18 | Air conditioning condenser |
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| CN102679494B (en) * | 2012-05-03 | 2014-04-02 | 宁波奥克斯电气有限公司 | Control method of low temperature refrigeration of rooftop air conditioning unit |
| CN102679455A (en) * | 2012-05-29 | 2012-09-19 | 杭州金森科技有限公司 | Low-temperature constant-temperature constant-humidity device for wine cellar |
| CN106705496A (en) * | 2016-12-15 | 2017-05-24 | 广州华凌制冷设备有限公司 | Micro-channel air conditioner and control method thereof |
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| CN108469134B (en) * | 2018-04-17 | 2023-06-27 | 南京佳力图机房环境技术股份有限公司 | Improved air-cooled condenser and control method thereof |
| CN110455856B (en) * | 2019-07-30 | 2021-11-23 | 中国特种设备检测研究院 | Supersaturated flue gas condenser thermal performance measuring system and measuring method thereof |
| CN110953739A (en) * | 2019-12-09 | 2020-04-03 | 珠海格力电器股份有限公司 | Control method of refrigeration system, refrigeration system and refrigerator |
| CN112944645A (en) * | 2021-03-26 | 2021-06-11 | 北京小米移动软件有限公司 | Control method and device of fresh air conditioning system and fresh air conditioning system |
| CN114484938A (en) * | 2022-01-06 | 2022-05-13 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner |
| CN114777292B (en) * | 2022-04-26 | 2024-03-29 | 青岛海尔空调电子有限公司 | Air conditioning system and control method |
| CN115899851B (en) * | 2022-10-11 | 2024-09-03 | 珠海格力电器股份有限公司 | Outdoor unit of water source multi-split air conditioner, water source multi-split air conditioner system and control method of water source multi-split air conditioner system |
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| CN201611196U (en) * | 2009-12-18 | 2010-10-20 | 艾默生网络能源有限公司 | Condenser for air-conditioner |
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| US3977210A (en) * | 1973-11-16 | 1976-08-31 | Societe Anonyme Dite: Frimair S.A. | Heat exchanger applicable more particularly to compressor heat pumps |
| CN200986351Y (en) * | 2006-12-13 | 2007-12-05 | 浙江盾安人工环境设备股份有限公司 | Wind cooling cold water air-conditioning unit |
| CN201611196U (en) * | 2009-12-18 | 2010-10-20 | 艾默生网络能源有限公司 | Condenser for air-conditioner |
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