CN110822664A - Refrigerant recovery method and system of air conditioner and air conditioner - Google Patents
Refrigerant recovery method and system of air conditioner and air conditioner Download PDFInfo
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- CN110822664A CN110822664A CN201911184105.6A CN201911184105A CN110822664A CN 110822664 A CN110822664 A CN 110822664A CN 201911184105 A CN201911184105 A CN 201911184105A CN 110822664 A CN110822664 A CN 110822664A
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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
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Physics & Mathematics (AREA)
- Signal Processing (AREA)
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- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides a refrigerant recovery method and system of an air conditioner and the air conditioner. The air conditioner comprises a first valve arranged between an outdoor heat exchanger and an indoor heat exchanger and a second valve arranged between the indoor heat exchanger and a compressor, and the refrigerant recovery method of the air conditioner comprises the following steps: receiving a shutdown instruction; if the indoor side pipeline is in the refrigeration mode, closing the first valve, delaying for a first preset time, and judging whether the pressure of the indoor side pipeline is smaller than a preset pressure or not; if yes, closing the second valve and controlling the air conditioner to stop refrigerating operation; and after delaying the second preset time, if the pressure of the indoor side pipeline is less than the preset pressure, judging that the refrigerant is recycled to the outdoor side pipeline, and controlling the air conditioner to be shut down. According to the refrigerant recovery method of the air conditioner, the refrigerant can be recovered to the outdoor side after the air conditioner is shut down, the refrigerant is prevented from being reserved in an indoor side pipeline, further, the hidden danger that combustible refrigerant leaks to the indoor side is eliminated, and the safety and the reliability of the air conditioner are improved.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a refrigerant recovery method and system of an air conditioner and the air conditioner.
Background
During the use of the air conditioner, some faults may occur, such as: the refrigerant leaks. Because many air conditioners use flammable refrigerants at present, namely: flammable refrigerants, such as R290 and R32, once leaked into a room, may be burned, thereby causing a safety hazard.
Disclosure of Invention
The present application is directed to solving at least one of the above problems.
Therefore, an object of the present application is to provide a refrigerant recovery method for an air conditioner. The method can eliminate the hidden trouble that the combustible refrigerant leaks into the room after the air conditioner is shut down, and improves the safety and the reliability of the air conditioner.
A second objective of the present application is to provide a refrigerant recovery system of an air conditioner.
A third object of the present application is to provide an air conditioner.
A fourth object of the present application is to propose a computer readable storage medium.
In order to achieve the above object, a first aspect of the present application discloses a refrigerant recovery method for an air conditioner, the air conditioner including a first valve disposed between an outdoor heat exchanger and an indoor heat exchanger, and a second valve disposed between the indoor heat exchanger and a compressor, the method including: receiving a shutdown instruction; if the indoor side pipeline is in the refrigeration mode, closing the first valve, delaying for a first preset time, and judging whether the pressure of the indoor side pipeline is smaller than a preset pressure or not; if yes, closing the second valve and controlling the air conditioner to stop refrigerating operation; and after delaying a second preset time, if the pressure of the indoor side pipeline is less than the preset pressure, judging that the refrigerant is recycled to the outdoor side pipeline, and controlling the air conditioner to be shut down.
According to the refrigerant recovery method of the air conditioner, the refrigerant can be recovered to the outdoor side after the air conditioner is shut down, the refrigerant is prevented from being reserved in an indoor side pipeline, further, the hidden danger that combustible refrigerant leaks to the indoor side is eliminated, and the safety and the reliability of the air conditioner are improved.
In some examples, upon receiving the shutdown instruction, further comprising: if not, switching to the cooling mode first.
In some examples, after closing the first valve and delaying the first preset time, further comprising: and if the pressure of the indoor side pipeline is greater than or equal to the preset pressure, judging that the first valve is in fault, and giving an alarm.
In some examples, after delaying the second preset time, further comprising: and if the pressure of the indoor side pipeline is greater than or equal to the preset pressure, judging that the second valve is in fault, and giving an alarm.
The second aspect of the application discloses refrigerant recovery system of air conditioner, the air conditioner sets up including setting up the first valve between outdoor heat exchanger and indoor heat exchanger the second valve between indoor heat exchanger and the compressor, the system includes: the receiving module is used for receiving a shutdown instruction; and the control module is used for closing the first valve when the air conditioner is in a refrigeration mode, delaying a first preset time, judging whether the pressure of an indoor side pipeline is less than a preset pressure, if so, closing the second valve, controlling the air conditioner to stop refrigerating operation, delaying a second preset time, and if the pressure of the indoor side pipeline is less than the preset pressure, judging that the refrigerant is recycled to the outdoor side pipeline, and controlling the air conditioner to be shut down.
According to the refrigerant recovery system of air conditioner, can be after the air conditioner shuts down, retrieve the outdoor side with the refrigerant, avoided the refrigerant to persist in indoor side pipeline, and then, eliminate combustible refrigerant and leak indoor hidden danger, promote the security and the reliability of air conditioner.
In some examples, the control module, when receiving the shutdown instruction, is further configured to first switch to the cooling mode when the air conditioner is not in the cooling mode.
In some examples, the control module is further configured to determine that the first valve is malfunctioning and alarm if the pressure of the indoor-side pipe is greater than or equal to the predetermined pressure after closing the first valve and delaying the first preset time.
In some examples, the control module is further configured to determine that the second valve is malfunctioning and to alarm if the pressure of the indoor side pipe is greater than or equal to the predetermined pressure after a delay of a second preset time.
A third aspect of the present application discloses an air conditioner, which includes a memory, a processor, and a refrigerant recovery program of the air conditioner, which is stored in the memory and can be run on the processor, wherein when the processor executes the refrigerant recovery program of the air conditioner, the refrigerant recovery method of the air conditioner according to the first aspect is implemented. This air conditioner can be after shutting down, retrieves the outdoor side with the refrigerant, has avoided the refrigerant to persist in indoor side pipeline, and then, eliminates combustible refrigerant and leaks indoor hidden danger, promotes the security and the reliability of air conditioner.
A fourth aspect of the present application discloses a computer-readable storage medium on which a refrigerant recovery program of an air conditioner is stored, the refrigerant recovery program of the air conditioner, when executed by a processor, implementing the refrigerant recovery method of the air conditioner according to the first aspect.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a refrigerant recovery method of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic view of a refrigeration system of an air conditioner according to an embodiment of the present application;
fig. 3 is a block diagram illustrating a refrigerant recovery system of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The following describes a refrigerant recovery method and system of an air conditioner and the air conditioner according to an embodiment of the present application with reference to the accompanying drawings.
Before describing a refrigerant recovery method of an air conditioner according to an embodiment of the present application, the air conditioner including a refrigeration system including, as shown in fig. 2, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttling device, a low-pressure cutoff valve, and a high-pressure cutoff valve, and further including, as shown in fig. 2, a first valve disposed between the outdoor heat exchanger and the indoor heat exchanger, and a second valve disposed between the indoor heat exchanger and the compressor, wherein the first valve is, for example, a high-pressure solenoid valve, and the second valve is, for example, a low-pressure solenoid valve, will be described first.
Fig. 1 is a flowchart illustrating a refrigerant recovery method of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 1, a refrigerant recovery method of an air conditioner according to an embodiment of the present application includes the following steps:
s101: and receiving a shutdown instruction.
S102: if the indoor side pipeline is in the refrigeration mode, the first valve is closed (namely, the high-pressure electromagnetic valve is closed), and whether the pressure of the indoor side pipeline is smaller than the preset pressure or not is judged after the first preset time is delayed.
In a specific example, the first preset time may be preset, for example, 1 minute. The predetermined pressure may be calibrated in advance, for example, experimentally, by detecting the pressure in the chamber inner pipe after a delay of 1 minute, for example, by a pressure sensor P1 shown in fig. 2, and determining the predetermined pressure according to the pressure at the position, which is usually slightly larger than the actual pressure detected experimentally at the position.
The indoor side pipe generally refers to a pipe connected to both ends of the indoor heat exchanger, and as shown in fig. 2, a pipe located below the low pressure solenoid valve and the high pressure solenoid valve is the indoor side pipe.
S103: if yes, the second valve is closed, and the air conditioner is controlled to stop the cooling operation.
Namely: if the pressure of the indoor side pipeline is less than the preset pressure, the first valve is completely closed, no leakage exists, at the moment, the refrigerant is sent into the outdoor side pipeline by the operation of the compressor, the indoor fan and the outdoor fan in the refrigeration mode, and the refrigerant cannot flow back to the indoor side pipeline through the first valve due to the fact that the first valve is completely closed.
Further, after the first valve is completely closed and the first preset time is delayed, the second valve is closed, and the air conditioner is controlled to stop the cooling operation, that is: and controlling the compressor, the indoor fan and the outdoor fan to stop running. After the second valve is closed, all or most of the refrigerant is recovered to the outdoor side pipeline.
The outdoor side duct is, for example, a portion above the low-pressure solenoid valve and the high-pressure solenoid valve as shown in fig. 2.
S104: and after delaying the second preset time, if the pressure of the indoor side pipeline is less than the preset pressure, judging that the refrigerant is recycled to the outdoor side pipeline, and controlling the air conditioner to be shut down.
The second preset time may be the same as the first preset time, for example, 1 minute, after the first valve is closed for one minute, if the pressure of the indoor side pipeline is always less than the preset pressure, it is indicated that the second valve is also completely closed, and there is no leakage, and further, all or most of the refrigerant is recovered to the outdoor side pipeline, thereby preventing the refrigerant from remaining in the indoor side pipeline. By taking the combustible refrigerant as an example, the combustible refrigerant is prevented from remaining in an indoor side pipeline, further, the hidden danger that the combustible refrigerant leaks to the indoor space is eliminated, and the safety and the reliability of the air conditioner are improved.
According to the refrigerant recovery method of the air conditioner, the refrigerant can be recovered to the outdoor side after the air conditioner is shut down, the refrigerant is prevented from being reserved in an indoor side pipeline, further, the hidden danger that combustible refrigerant leaks to the indoor side is eliminated, and the safety and the reliability of the air conditioner are improved.
Further, when receiving a shutdown instruction, the method further includes: if not, switching to the cooling mode first. Then, the steps of S101 to S104 are performed. Namely: no matter what mode the air conditioner runs before shutting down, all can eliminate the combustible refrigerant and leak indoor hidden danger after the air conditioner shuts down, further promote the security of air conditioner.
Further, after closing the first valve and delaying the first preset time, the method further comprises: and if the pressure of the indoor side pipeline is greater than or equal to the preset pressure, judging that the first valve is in fault, and giving an alarm. That is to say, if first valve does not close completely, then there is the refrigerant to leak to indoor side pipeline, and the pressure in the indoor side pipeline can grow, consequently, can detect out whether the refrigerant can retrieve the outdoor side reliably to, after first valve trouble, can in time inform the user, in time the maintenance promotes the reliability and the security of air conditioner.
Of course, after delaying the second preset time, the method further includes: and if the pressure of the indoor side pipeline is greater than or equal to the preset pressure, judging that the second valve is in fault, and giving an alarm. That is, if the second valve is not completely closed, the refrigerant leaks to the indoor side pipeline, and the pressure in the indoor side pipeline is increased, so that whether the refrigerant can be reliably recovered to the outdoor side can be detected, and after the second valve fails, a user can be timely notified, the maintenance is timely performed, and the reliability of the air conditioner is improved.
In the above description, the flammable refrigerant is, for example, R32 or R290, that is: flammable refrigerants such as propane.
In a specific example, referring to fig. 2, when a shutdown command is received, the controller may first detect a current operation state, adjust the operation state to refrigeration, then close the high pressure solenoid valve, recycle refrigerant to the outdoor unit, detect the pressure sensor P1 after a preset time t1 (a first preset time), compare the detected pressure with a preset pressure P (a preset pressure), if the detected pressure is higher than P, prove that the high pressure solenoid valve is not successfully closed, feed back a result to a user, if the detected pressure is lower than P, prove that the high pressure solenoid valve is successfully closed, simultaneously close the low pressure solenoid valve, after the low pressure solenoid valve is closed, stop the compressor and the fan, after a time t2 (a second preset time), detect the pressure sensor P2, compare the detected pressure with the preset pressure P, if the detected pressure is higher than P, prove that the low pressure solenoid valve is not successfully closed, feed back the result to the user, if the detected pressure is lower than P, the low-pressure electromagnetic valve is successfully closed, and the result is fed back to the user.
According to the refrigerant recovery method of the air conditioner, the refrigerant can be recovered to the outdoor side after the air conditioner is shut down, the refrigerant is prevented from being reserved in an indoor side pipeline, further, the hidden danger that combustible refrigerant leaks to the indoor side is eliminated, and the safety and the reliability of the air conditioner are improved.
Fig. 3 is a block diagram illustrating a refrigerant recovery system of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 3, a refrigerant recovery system 300 of an air conditioner according to an embodiment of the present application includes: a receiving module 310 and a control module 320.
The receiving module 310 is configured to receive a shutdown instruction. The control module 320 is configured to close the first valve when the air conditioner is in the cooling mode, delay a first preset time, determine whether a pressure of an indoor side pipeline is less than a preset pressure, if so, close the second valve, control the air conditioner to stop cooling operation, delay a second preset time, and determine that a refrigerant is recovered to the outdoor side pipeline if the pressure of the indoor side pipeline is less than the preset pressure, and control the air conditioner to shut down.
In an embodiment of the present application, the control module 320 is further configured to, when receiving a shutdown instruction, first switch to the cooling mode when the air conditioner is not in the cooling mode.
In an embodiment of the present application, the control module 320 is further configured to determine that the first valve is failed and alarm if the pressure of the indoor-side pipe is greater than or equal to the predetermined pressure after the first valve is closed and the first preset time is delayed.
In one embodiment of the present application, the control module 320 is further configured to determine that the second valve is out of order and alarm if the pressure of the indoor side pipe is greater than or equal to the predetermined pressure after delaying a second preset time.
According to refrigerant recovery system of air conditioner according to this application embodiment, can be after the air conditioner shuts down, retrieve the outdoor side with the refrigerant, avoided the refrigerant to persist in indoor side pipeline, and then, eliminate combustible refrigerant and leak indoor hidden danger, promote the security and the reliability of air conditioner.
It should be noted that a specific implementation manner of the refrigerant recovery system of the air conditioner in the embodiment of the present application is similar to a specific implementation manner of the refrigerant recovery method of the air conditioner in the embodiment of the present application, and please refer to the description of the method portion specifically, which is not described herein again.
Further, an embodiment of the present application discloses an air conditioner, which includes a memory, a processor, and a refrigerant recovery program of the air conditioner, which is stored in the memory and can be run on the processor, and when the processor executes the refrigerant recovery program of the air conditioner, the refrigerant recovery method of the air conditioner according to any one of the embodiments is implemented. This air conditioner can be after shutting down, retrieves the outdoor side with the refrigerant, has avoided the refrigerant to persist in indoor side pipeline, eliminates combustible refrigerant and leaks indoor hidden danger, promotes the security and the reliability of air conditioner.
In addition, other configurations and functions of the air conditioner according to the embodiment of the present application are known to those skilled in the art, and are not described herein.
The computer-readable storage medium of the embodiment of the present application stores thereon a refrigerant recovery program of an air conditioner, and when the refrigerant recovery program of the air conditioner is executed by a processor, the refrigerant recovery method of the air conditioner according to any one of the foregoing embodiments of the present application is implemented.
The computer-readable storage medium described above may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only Memory (ROM), an Erasable Programmable read-only Memory (EPROM), a flash Memory, an optical fiber, a portable compact disc read-only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A refrigerant recovery method of an air conditioner, wherein the air conditioner comprises a first valve arranged between an outdoor heat exchanger and an indoor heat exchanger, and a second valve arranged between the indoor heat exchanger and a compressor, the method comprises the following steps:
receiving a shutdown instruction;
if the indoor side pipeline is in the refrigeration mode, closing the first valve, delaying for a first preset time, and judging whether the pressure of the indoor side pipeline is smaller than a preset pressure or not;
if yes, closing the second valve and controlling the air conditioner to stop refrigerating operation;
and after delaying a second preset time, if the pressure of the indoor side pipeline is less than the preset pressure, judging that the refrigerant is recycled to the outdoor side pipeline, and controlling the air conditioner to be shut down.
2. The refrigerant recovery method of an air conditioner according to claim 1, further comprising, upon receiving a shutdown command: if not, switching to the cooling mode first.
3. The refrigerant recovery method of an air conditioner according to claim 1 or 2, further comprising, after closing the first valve and delaying the first preset time, the step of:
and if the pressure of the indoor side pipeline is greater than or equal to the preset pressure, judging that the first valve is in fault, and giving an alarm.
4. The refrigerant recovery method of an air conditioner according to claim 1 or 2, further comprising, after delaying for a second predetermined time:
and if the pressure of the indoor side pipeline is greater than or equal to the preset pressure, judging that the second valve is in fault, and giving an alarm.
5. The refrigerant recovery system of an air conditioner, characterized in that, the air conditioner includes the first valve that sets up between outdoor heat exchanger and indoor heat exchanger, sets up the second valve between indoor heat exchanger and the compressor, the system includes:
the receiving module is used for receiving a shutdown instruction;
and the control module is used for closing the first valve when the air conditioner is in a refrigeration mode, delaying a first preset time, judging whether the pressure of an indoor side pipeline is less than a preset pressure, if so, closing the second valve, controlling the air conditioner to stop refrigerating operation, delaying a second preset time, and if the pressure of the indoor side pipeline is less than the preset pressure, judging that the refrigerant is recycled to the outdoor side pipeline, and controlling the air conditioner to be shut down.
6. The refrigerant recovery system of an air conditioner according to claim 5, wherein the control module is further configured to switch to the cooling mode first when the air conditioner is not in the cooling mode after receiving the shutdown instruction.
7. The refrigerant recovery system of an air conditioner according to claim 5 or 6, wherein the control module is further configured to determine that the first valve is out of order and alarm if the pressure of the indoor side pipe is greater than or equal to the predetermined pressure after the first valve is closed and the first preset time is delayed.
8. The refrigerant recovery system of an air conditioner according to claim 5 or 6, wherein the control module is further configured to determine that the second valve is out of order and alarm if the pressure of the indoor side pipe is greater than or equal to the predetermined pressure after delaying a second preset time.
9. An air conditioner, characterized by comprising a memory, a processor and a refrigerant recovery program of the air conditioner, wherein the refrigerant recovery program is stored in the memory and can be run on the processor, and when the processor executes the refrigerant recovery program of the air conditioner, the refrigerant recovery method of the air conditioner according to any one of claims 1 to 4 is realized.
10. A computer-readable storage medium on which a refrigerant recovery program of an air conditioner is stored, wherein the refrigerant recovery program of the air conditioner, when executed by a processor, implements the refrigerant recovery method of the air conditioner according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911184105.6A CN110822664A (en) | 2019-11-27 | 2019-11-27 | Refrigerant recovery method and system of air conditioner and air conditioner |
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| CN201911184105.6A CN110822664A (en) | 2019-11-27 | 2019-11-27 | Refrigerant recovery method and system of air conditioner and air conditioner |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111486612A (en) * | 2020-04-29 | 2020-08-04 | 广东美的暖通设备有限公司 | Multi-split air conditioning system, heating valve leakage detection method and device thereof, and storage medium |
| CN111503948A (en) * | 2020-04-29 | 2020-08-07 | 广东美的暖通设备有限公司 | Multi-split air conditioning system, method and device for detecting leakage of refrigeration valve of multi-split air conditioning system and storage medium |
| CN111609532A (en) * | 2020-05-19 | 2020-09-01 | 海信（山东）空调有限公司 | Refrigerant recovery method and device |
| CN111998579A (en) * | 2020-07-27 | 2020-11-27 | 珠海格力电器股份有限公司 | Refrigerant folding and unfolding control device, air conditioner and refrigerant folding and unfolding control method thereof |
| CN114383254A (en) * | 2021-12-20 | 2022-04-22 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
| CN114935223A (en) * | 2022-06-08 | 2022-08-23 | 青岛海信日立空调系统有限公司 | Air source heat pump system |
| WO2023246147A1 (en) * | 2022-06-21 | 2023-12-28 | 青岛海尔空调器有限总公司 | Air conditioner refrigerant recovery method and apparatus, air conditioner, medium, and program product |
| WO2024193054A1 (en) * | 2023-03-20 | 2024-09-26 | 青岛海尔空调电子有限公司 | Air conditioner and control method therefor |
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| CN111486612A (en) * | 2020-04-29 | 2020-08-04 | 广东美的暖通设备有限公司 | Multi-split air conditioning system, heating valve leakage detection method and device thereof, and storage medium |
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| CN111998579A (en) * | 2020-07-27 | 2020-11-27 | 珠海格力电器股份有限公司 | Refrigerant folding and unfolding control device, air conditioner and refrigerant folding and unfolding control method thereof |
| CN114383254A (en) * | 2021-12-20 | 2022-04-22 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
| CN114935223A (en) * | 2022-06-08 | 2022-08-23 | 青岛海信日立空调系统有限公司 | Air source heat pump system |
| WO2023246147A1 (en) * | 2022-06-21 | 2023-12-28 | 青岛海尔空调器有限总公司 | Air conditioner refrigerant recovery method and apparatus, air conditioner, medium, and program product |
| WO2024193054A1 (en) * | 2023-03-20 | 2024-09-26 | 青岛海尔空调电子有限公司 | Air conditioner and control method therefor |
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