CN109357369A - Air conditioner and its refrigerant recovering control method - Google Patents

Air conditioner and its refrigerant recovering control method Download PDF

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Publication number
CN109357369A
CN109357369A CN201811052142.7A CN201811052142A CN109357369A CN 109357369 A CN109357369 A CN 109357369A CN 201811052142 A CN201811052142 A CN 201811052142A CN 109357369 A CN109357369 A CN 109357369A
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CN
China
Prior art keywords
air conditioner
valve
compressor
refrigerant recovering
control
Prior art date
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Granted
Application number
CN201811052142.7A
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Chinese (zh)
Other versions
CN109357369B (en
Inventor
陈锐东
廖永富
熊重重
邹云辉
黄志辉
冯青龙
梁玉林
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201811052142.7A priority Critical patent/CN109357369B/en
Publication of CN109357369A publication Critical patent/CN109357369A/en
Application granted granted Critical
Publication of CN109357369B publication Critical patent/CN109357369B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature

Abstract

The present invention provides a kind of air conditioner and its refrigerant recovering control method.The air conditioner includes compressor (1), outdoor heat exchanger (2), the first electric expansion valve (3), the first shut-off valve (4), indoor heat exchanger (5), the second shut-off valve (6) and the first electrically-controlled valve, first electric expansion valve (3) is arranged between the first shut-off valve (4) and outdoor heat exchanger (2), and the first electrically-controlled valve is arranged between the second shut-off valve (6) and compressor (1).Air conditioner according to the present invention can be realized the automatic recycling of refrigerant, reduce cumbersome degree.

Description

Air conditioner and its refrigerant recovering control method
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of air conditioner and its refrigerant recovering control method.
Background technique
Domestic air conditioning is needed when after-sales service by the refrigerant recovering in system into outdoor unit, and Normal practice is It needs air-conditioning opening refrigeration mode, the shut-off valve on condenser and indoor evaporator connecting line, certain time is turned off manually The shut-off valve on indoor evaporator and compressor air suction end connecting line is turned off afterwards, is finally shut down.Whether refrigerant recycles completely The experience for needing to see operator, possible refrigerant is unrecovered completely if recovery time is too short, and overlong time then may be because during length It is unloaded and damage compressor.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of air conditioner and its refrigerant recovering control method, energy The automatic recycling for enough realizing refrigerant, reduces cumbersome degree.
To solve the above-mentioned problems, it includes that compressor, outdoor heat exchanger, the first electronics are swollen that the present invention, which provides a kind of air conditioner, Swollen valve, the first shut-off valve, indoor heat exchanger, the second shut-off valve and the first electrically-controlled valve, the first electric expansion valve are arranged at first section Only between valve and outdoor heat exchanger, the first electrically-controlled valve is arranged between the second shut-off valve and compressor.
Preferably, air conditioner further includes four-way valve, and four-way valve is connect with compressor, and the setting of the first electrically-controlled valve is in the second cut-off Between valve and four-way valve.
Preferably, air conditioner further includes alarm, and alarm after air conditioner reaches refrigerant recovering completion condition for sending out Alarm out.
Preferably, the first electrically-controlled valve is the second electric expansion valve or electromagnetism two-port valve.
In accordance with a further aspect of the present invention, a kind of refrigerant recovering control method of above-mentioned air conditioner is provided, comprising: control Air conditioner processed starts refrigerant recovering mode;It controls air conditioner and runs refrigeration mode;Control the closing of the first electric expansion valve, control the One electrically-controlled valve is opened;Whether detection air conditioner operation meets preset condition;When meeting preset condition, judge that air conditioner is completed to receive Fluorine, the first electrically-controlled valve of control are closed.
Preferably, the step of control air conditioner operation refrigeration mode includes: detection indoor environment temperature;By indoor environment temperature It spends and is compared with the lower limit temperature of air conditioner operation refrigeration;If indoor environment temperature is lower than the lower limit temperature of air conditioner operation refrigeration Degree forces air conditioner to open refrigeration mode.
Preferably, control the first electric expansion valve close the step of include: air conditioner run the refrigeration mode t1 time or After operation to setpoint frequency P0, the first electric expansion valve is adjusted to fully closed conjunction state, while detecting the first electric expansion valve and closing Compressor average exhaust T1, condenser before closing in the t2 time are averaged tube temperature TG1 and compressor is averaged running current I1.
Preferably, detection air conditioner runs that the step of whether meeting preset condition includes:
After the first electric expansion valve is closed, control compressor continuously runs the t2 time;
Obtain compressor exhaust temperature T2, condenser tube temperature TG2 after the first electric expansion valve is closed and compressor fortune Row electric current I2;
Whether detection air conditioner operation meets at least one following condition:
The T2-T1 < △ Ta and continuous t4 time detects that delivery temperature no longer reduces;
TG1-TG2 >=△ Tb and continuous t5 the time detects TG2-TH≤△ Tc;
And
In the case where compressor frequency variation is less than b, the continuous t6 time detects I2/I1 < a%;
Wherein △ Ta, △ Tb and △ Tc indicate that constant value, a are constant value, and TH is outside environment temperature.
Preferably, detection air conditioner runs that the step of whether meeting preset condition includes:
Detect the duration of air conditioner operation refrigerant recovering mode;
If duration t > t3, judge that air conditioner completes refrigerant recovering.
Preferably, refrigerant recovering control method further include:
After closing the first electrically-controlled valve, close compressor and fans load;
It is sounded an alarm by alarm device.
Preferably, the step of being sounded an alarm by alarm device include:
Respective code, which is shown, by the display panel of indoor unit or is sounded an alarm by buzzer informs that user's completion is cold Matchmaker's recycling.
Preferably, refrigerant recovering control method further include: close the first shut-off valve and the second shut-off valve.
Air conditioner provided by the invention, including compressor, outdoor heat exchanger, the first electric expansion valve, the first shut-off valve, room Interior heat exchanger, the second shut-off valve and the first electrically-controlled valve, the setting of the first electric expansion valve the first shut-off valve and outdoor heat exchanger it Between, the first electrically-controlled valve is arranged between the second shut-off valve and compressor.The air conditioner increases between compressor and the second shut-off valve The first electrically-controlled valve is added, can have been matched with the first electric expansion valve having originally in air conditioner, has been realized to air-conditioner coolant The automatic control of recycling, during the entire process of refrigerant recovering, it is only necessary to the first electric expansion valve of remote control and first automatically controlled Valve, it will be able to complete the reclaimer operation of refrigerant, whole process is simple and convenient, is not necessarily to manual hand manipulation, it is only necessary to pass through control Device etc. carries out electrical control, can be realized the automatic recycling of refrigerant, reduces cumbersome degree, reduce workload, improve Refrigerant recovering efficiency.
Detailed description of the invention
Fig. 1 is the structure principle chart of the air conditioner of first embodiment of the invention;
Fig. 2 is the structure principle chart of the air conditioner of second embodiment of the invention;
The refrigerant recovering control method flow chart of the air conditioner of Fig. 3 embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, compressor;2, outdoor heat exchanger;3, the first electric expansion valve;4, the first shut-off valve;5, indoor heat exchanger;6, Two shut-off valves;7, four-way valve;8, the second electric expansion valve;9, electromagnetism two-port valve.
Specific embodiment
In conjunction with referring to figure 1 and figure 2, according to an embodiment of the invention, air conditioner includes compressor 1, outdoor heat exchanger 2, the first electric expansion valve 3, the first shut-off valve 4, indoor heat exchanger 5, the second shut-off valve 6 and the first electrically-controlled valve, the first electronics are swollen Swollen valve 3 is arranged between the first shut-off valve 4 and outdoor heat exchanger 2, and the first electrically-controlled valve is arranged in the second shut-off valve 6 and compressor 1 Between.
The air conditioner increases the first electrically-controlled valve between compressor 1 and the second shut-off valve, can be with script in air conditioner The first electric expansion valve 3 having matches, and the automatic control recycled to air-conditioner coolant is realized, in the entire mistake of refrigerant recovering Cheng Zhong, it is only necessary to remote control the first electric expansion valve 3 and the first electrically-controlled valve, it will be able to complete the reclaimer operation of refrigerant, entirely Process is simple and convenient, is not necessarily to manual hand manipulation, it is only necessary to carry out electrical control by controller etc., can be realized refrigerant oneself Dynamic recycling, reduces cumbersome degree, reduces workload, improve refrigerant recovering efficiency.
Air conditioner further includes four-way valve 7, and four-way valve 7 is connect with compressor 1, and the first electrically-controlled valve is arranged in the second shut-off valve 6 Between four-way valve 7.By the way that four-way valve 7 is arranged, the switching of air conditioner refrigeration and heat-production functions is realized with can be convenient.
Air conditioner further includes alarm, and alarm after air conditioner reaches refrigerant recovering completion condition for sounding an alarm. After air conditioner runs refrigerant recovering mode, when detecting air conditioner completion refrigerant recovering operation, then it can pass through alarm It sounds an alarm in time, informs that user has completed refrigerant recovering operation, in order to which user carries out the operation of next step.In this implementation In example, the alarm that alarm issues can show as image or sound, such as be shown accordingly by the display panel of indoor unit Code, or alarm sound is issued by buzzer etc., to remind user's refrigerant recovering to complete.
First electrically-controlled valve is the second electric expansion valve 8 or electromagnetism two-port valve 9.First electrically-controlled valve may be other forms The electrically-controlled valve for capableing of control piper on-off be directly remotely controlled by controller etc. as long as can be manually operated without user Operation.
In conjunction with shown in Figure 3, according to an embodiment of the invention, the refrigerant recovering control method packet of above-mentioned air conditioner It includes: control air conditioner starting refrigerant recovering mode;It controls air conditioner and runs refrigeration mode;The closing of the first electric expansion valve 3 is controlled, Control the first electrically-controlled valve opening;Whether detection air conditioner operation meets preset condition;When meeting preset condition, air conditioner is judged It completes to receive fluorine, the first electrically-controlled valve of control is closed.
By above-mentioned control mode, can be realized by the first electric expansion valve 3 and the first electrically-controlled valve to refrigerant Reclaimer operation, due to the first electric expansion valve 3 and the first electrically-controlled valve be it is automatically controlled, controller or remote control panel can be passed through Etc. being remotely controlled, without manually being operated, making little runs to and fro without user indoor and outdoor is operated, therefore mode of operation is more Add simple and convenient, laborsaving time saving, refrigerant recovering is more efficient, is easy to implement the automatic control of refrigerant recovering.
In addition, this kind of control method, is directly utilized original first electric expansion valve 3 in system, and increased one newly Electrically-controlled valve realizes that improvement cost is lower to the reclaimer operation of refrigerant, will not influence air conditioner original function, therefore have good Applicability.
The step of controlling air conditioner operation refrigeration mode includes: detection indoor environment temperature;By indoor environment temperature and sky The lower limit temperature of device operation refrigeration is adjusted to be compared;If indoor environment temperature is lower than the lower limit temperature of air conditioner operation refrigeration, by force Air conditioner processed opens refrigeration mode.
Under normal circumstances, most of air conditioner refrigerating set temperature is 16~30 DEG C in the market, when indoor environment temperature is lower than At 16 DEG C, air conditioner fail to open refrigeration mode, is unable to complete successfully the reclaimer operation to refrigerant at this time.The application is in air conditioner In joined forced refrigeration mode, when indoor environment temperature be lower than air conditioner refrigerating set temperature lower limit value when, directly force sky Row refrigeration mode is allocated and transported, it is suitable in the case where the lower limit value that air conditioner refrigerating set temperature is lower than so as to environment temperature indoors Benefit completes refrigerant recovering operation.
Controlling the step of the first electric expansion valve 3 is closed includes: to run refrigeration mode t1 time or operation extremely in air conditioner After setpoint frequency P0, the first electric expansion valve 3 is adjusted to fully closed conjunction state, while before detection the first electric expansion valve 3 closing Compressor average exhaust T1, condenser in the t2 time are averaged tube temperature TG1 and compressor is averaged running current I1.In sky After adjusting device to run refrigeration mode, it is necessary first to it runs the t1 time or runs to setpoint frequency P0, so that air conditioner stable operation, Then the first electric expansion valve 3 is adjusted to fully closed conjunction state, so that refrigerant flows to outdoor heat exchanger 2, and is stored in outdoor and changes In hot device 2, the recycling of refrigerant is carried out.
The step of whether detection air conditioner operation meets preset condition includes: control after the first electric expansion valve 3 is closed Compressor 1 continuously runs the t2 time;Obtain the compressor exhaust temperature T2 after the first electric expansion valve 3 is closed and compressor fortune Row electric current I2;Whether detection air conditioner operation meets at least one following condition:
The T2-T1 < △ Ta and continuous t4 time detects that delivery temperature no longer reduces;
TG1-TG2 >=△ Tb and continuous t5 the time detects TG2-TH≤△ Tc;
And
In the case where compressor frequency variation is less than b, the continuous t6 time detects I2/I1 < a%;
Wherein △ Ta, △ Tb and indicate that constant value, a are constant value for △ Tc, TH is outside environment temperature.
Above-mentioned t1 >=3min, P0 are, for example, 50Hz, and t2 is, for example, 3s, and △ Ta is, for example, 3 DEG C, and t4 is, for example, 5s, △ Tb For example, 1 DEG C, t5 is, for example, 5s, and △ Tc is, for example, 1 DEG C, and b is, for example, 2Hz, and a is, for example, that 50, t6 is, for example, 3s.
T2-T1 < △ Ta and when the continuous t4 time detects that delivery temperature no longer reduces, closes the first electric expansion valve 3 Afterwards, delivery temperature can sharply decline, and motor radiating rise can be given because of no refrigerant by completing refrigerant recovering final vacuum temperature, therefore be worked as T2-T1 < △ Ta and when the continuous t4 time detects that delivery temperature no longer reduces, then illustrate delivery temperature in the first electronic expansion Fluctuation is smaller after valve 3, and refrigerant recovering degree is higher, it can be considered that refrigerant is basically completed recycling.
After closing the first electric expansion valve 3, tube temperature can decline, and when completing recycling refrigerant, tube temperature and circumstance temperature are close to therefore As TG1-TG2 >=△ Tb and when the continuous t5 time detects TG2-TH≤△ Tc, it is believed that refrigerant complete substantially by recycling.
After closing the first electric expansion valve 3, power can be gradually reduced, when experiment shows to receive refrigerant completely under normal circumstances, Power is more than 40% received before refrigerant, so if can be in the case where compressor frequency changes and is less than b, the continuous t6 time is examined I2/I1 < a% is measured, then alternatively bright refrigerant complete substantially by recycling.
Due to the running state of air conditioner after the conditioners running conditions and completion refrigerant recovering during refrigerant recovering Between there are bigger differences, therefore by comparing air conditioner a period of time before and after closing the first electric expansion valve 3 Various operating statuses, can easily judge whether air conditioner completes refrigerant recovering operation.
Above-mentioned preset condition can only meet one of them, also can satisfy two, three or four therein.It is full A possibility that condition of foot is more, then the structure judged is more accurate, judges by accident are smaller, can more accurately judge air conditioner Complete refrigerant recovering operation.
The step of whether detection air conditioner operation meets preset condition includes: detection air conditioner operation refrigerant recovering mode Duration;If duration t > t3, judge that air conditioner completes refrigerant recovering.T3 is, for example, 1min.
After air conditioner operation refrigerant recovering mode duration t exceeds t3, general compressor can harvest 95% Above refrigerant, therefore regardless of whether meet one in four above-mentioned conditions, it is cold can to judge that air conditioner is completed accordingly Matchmaker's reclaimer operation, to avoid refrigerant recovering overlong time from causing compressor unloaded for a long time and cause compressor damage, to pressure Contracting machine forms loss prevention protection, improves safety and reliability when compressor operation.
Refrigerant recovering control method further include: after closing the first electrically-controlled valve, close compressor 1 and fans load;It is logical Alarm device is crossed to sound an alarm.
The step of being sounded an alarm by alarm device includes: to show respective code by the display panel of indoor unit or pass through Buzzer, which sounds an alarm, informs that user completes refrigerant recovering.After air conditioner runs refrigerant recovering mode, when detecting air-conditioning Device completes refrigerant recovering operation, then can be sounded an alarm in time by alarm, informs that user has completed refrigerant recovering operation, In order to which user carries out the operation of next step.
Refrigerant recovering control method further include: close the first shut-off valve 4 and the second shut-off valve 6.After executing this step, then The refrigerant recovering operation of entire air conditioner is properly completed.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention Protect range.

Claims (12)

1. a kind of air conditioner, which is characterized in that including compressor (1), outdoor heat exchanger (2), the first electric expansion valve (3), One shut-off valve (4), indoor heat exchanger (5), the second shut-off valve (6) and the first electrically-controlled valve, the first electric expansion valve (3) setting Between first shut-off valve (4) and the outdoor heat exchanger (2), first electrically-controlled valve is arranged in second shut-off valve (6) between the compressor (1).
2. air conditioner according to claim 1, which is characterized in that the air conditioner further includes four-way valve (7), the four-way Valve (7) is connect with the compressor (1), and first electrically-controlled valve is arranged in second shut-off valve (6) and the four-way valve (7) Between.
3. air conditioner according to claim 1, which is characterized in that further include alarm, the alarm is used for described Air conditioner sounds an alarm after reaching refrigerant recovering completion condition.
4. air conditioner according to claim 1, which is characterized in that first electrically-controlled valve is the second electric expansion valve (8) Or electromagnetism two-port valve (9).
5. a kind of refrigerant recovering control method of air conditioner as described in claim 1 characterized by comprising
It controls air conditioner and starts refrigerant recovering mode;
It controls air conditioner and runs refrigeration mode;
The first electric expansion valve (3) closing is controlled, the first electrically-controlled valve of control is opened;
Whether detection air conditioner operation meets preset condition;
When meeting preset condition, judge that air conditioner is completed to receive fluorine, the first electrically-controlled valve of control is closed.
6. refrigerant recovering control method according to claim 5, which is characterized in that control air conditioner operation refrigeration mode Step includes:
Detect indoor environment temperature;
Indoor environment temperature is compared with the lower limit temperature of air conditioner operation refrigeration;
If indoor environment temperature forces air conditioner to open refrigeration mode lower than the lower limit temperature of air conditioner operation refrigeration.
7. refrigerant recovering control method according to claim 5, which is characterized in that control the first electric expansion valve (3) is closed The step of closing include:
After air conditioner runs refrigeration mode t1 time or operation to setpoint frequency P0,
First electric expansion valve (3) is adjusted to fully closed conjunction state, while detecting before the first electric expansion valve (3) are closed the t2 time Interior compressor average exhaust T1, condenser are averaged tube temperature TG1 and compressor is averaged running current I1.
8. refrigerant recovering control method according to claim 7, which is characterized in that it is pre- whether detection air conditioner operation meets If the step of condition, includes:
After the first electric expansion valve (3) are closed, control compressor (1) continuously runs the t2 time;
Obtain compressor exhaust temperature T2, condenser tube temperature TG2 after the first electric expansion valve (3) are closed and compressor operation Electric current I2;
Whether detection air conditioner operation meets at least one following condition:
The T2-T1 < △ Ta and continuous t4 time detects that delivery temperature no longer reduces;
TG1-TG2 >=△ Tb and continuous t5 the time detects TG2-TH≤△ Tc;
And
In the case where compressor frequency variation is less than b, the continuous t6 time detects I2/I1 < a%;
Wherein △ Ta, △ Tb and △ Tc indicate constant value, and a is constant value, and b is that compressor change frequency value TH is outside environment Temperature.
9. refrigerant recovering control method according to claim 7, which is characterized in that it is pre- whether detection air conditioner operation meets If the step of condition, includes:
Detect the duration of air conditioner operation refrigerant recovering mode;
If duration t > t3, judge that air conditioner completes refrigerant recovering.
10. refrigerant recovering control method according to claim 5, which is characterized in that refrigerant recovering control method further include:
After closing the first electrically-controlled valve, close compressor (1) and fans load;
It is sounded an alarm by alarm device.
11. refrigerant recovering control method according to claim 10, which is characterized in that the step sounded an alarm by alarm device Suddenly include:
Respective code, which is shown, by the display panel of indoor unit or is sounded an alarm by buzzer informs that user completes refrigerant and returns It receives.
12. refrigerant recovering control method according to claim 10, which is characterized in that refrigerant recovering control method is also wrapped It includes:
Close the first shut-off valve (4) and the second shut-off valve (6).
CN201811052142.7A 2018-09-10 2018-09-10 Air conditioner and refrigerant recovery control method thereof Active CN109357369B (en)

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CN109357369B CN109357369B (en) 2020-06-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110260450A (en) * 2019-04-29 2019-09-20 青岛海尔空调电子有限公司 Refrigerant recovering control method for air conditioner
CN110454905A (en) * 2019-08-05 2019-11-15 广东美的制冷设备有限公司 Control method, device, air conditioner and the electronic equipment of air conditioner
CN110940039A (en) * 2019-12-16 2020-03-31 宁波奥克斯电气股份有限公司 High-temperature liquid-collecting multi-split refrigerant recovery method and device and multi-split system
CN111207504A (en) * 2020-01-13 2020-05-29 珠海格力电器股份有限公司 Air conditioning system and refrigerant recovery control method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04208368A (en) * 1990-11-30 1992-07-30 Toshiba Corp Air conditioner
CN102829582A (en) * 2012-08-17 2012-12-19 广东美的暖通设备有限公司 System and method for recovering refrigerant of air conditioner
CN104019525A (en) * 2014-06-24 2014-09-03 广东美的暖通设备有限公司 Recycling method and recycling system for air conditioner coolant
CN104236184A (en) * 2013-06-17 2014-12-24 海尔集团公司 Air conditioner refrigerant recovery detecting method
CN104748295A (en) * 2014-01-01 2015-07-01 广东美的制冷设备有限公司 Air conditioner and recycling method for air conditioner refrigerant
CN104776552A (en) * 2014-01-14 2015-07-15 三星电子株式会社 Air conditioner and fault diagnosis method thereof
CN105180498A (en) * 2015-09-02 2015-12-23 广东美的制冷设备有限公司 Floor-type split air conditioner, refrigerant recovering method and device
CN105698284A (en) * 2016-03-14 2016-06-22 广东美的制冷设备有限公司 Air-conditioning system and refrigeration controlling method and device thereof
CN106595149A (en) * 2016-11-22 2017-04-26 珠海格力电器股份有限公司 Refrigerant recovery method and device of air conditioner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04208368A (en) * 1990-11-30 1992-07-30 Toshiba Corp Air conditioner
CN102829582A (en) * 2012-08-17 2012-12-19 广东美的暖通设备有限公司 System and method for recovering refrigerant of air conditioner
CN104236184A (en) * 2013-06-17 2014-12-24 海尔集团公司 Air conditioner refrigerant recovery detecting method
CN104748295A (en) * 2014-01-01 2015-07-01 广东美的制冷设备有限公司 Air conditioner and recycling method for air conditioner refrigerant
CN104776552A (en) * 2014-01-14 2015-07-15 三星电子株式会社 Air conditioner and fault diagnosis method thereof
CN104019525A (en) * 2014-06-24 2014-09-03 广东美的暖通设备有限公司 Recycling method and recycling system for air conditioner coolant
CN105180498A (en) * 2015-09-02 2015-12-23 广东美的制冷设备有限公司 Floor-type split air conditioner, refrigerant recovering method and device
CN105698284A (en) * 2016-03-14 2016-06-22 广东美的制冷设备有限公司 Air-conditioning system and refrigeration controlling method and device thereof
CN106595149A (en) * 2016-11-22 2017-04-26 珠海格力电器股份有限公司 Refrigerant recovery method and device of air conditioner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110260450A (en) * 2019-04-29 2019-09-20 青岛海尔空调电子有限公司 Refrigerant recovering control method for air conditioner
CN110454905A (en) * 2019-08-05 2019-11-15 广东美的制冷设备有限公司 Control method, device, air conditioner and the electronic equipment of air conditioner
CN110940039A (en) * 2019-12-16 2020-03-31 宁波奥克斯电气股份有限公司 High-temperature liquid-collecting multi-split refrigerant recovery method and device and multi-split system
CN111207504A (en) * 2020-01-13 2020-05-29 珠海格力电器股份有限公司 Air conditioning system and refrigerant recovery control method

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