CN115264811A - Air conditioner refrigerant recovery method and device, air conditioner, medium and program product - Google Patents
Air conditioner refrigerant recovery method and device, air conditioner, medium and program product Download PDFInfo
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- CN115264811A CN115264811A CN202210705165.3A CN202210705165A CN115264811A CN 115264811 A CN115264811 A CN 115264811A CN 202210705165 A CN202210705165 A CN 202210705165A CN 115264811 A CN115264811 A CN 115264811A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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Abstract
The application belongs to the technical field of household appliances, and particularly relates to an air conditioner refrigerant recovery method, a device, an air conditioner, a medium and a program product, wherein the air conditioner comprises a first refrigerant pipeline and a second refrigerant pipeline, a first expansion valve is arranged on the first refrigerant pipeline, and a second expansion valve is arranged on the second refrigerant pipeline; the method comprises the following steps: acquiring a refrigerant recovery instruction; acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction; controlling the first expansion valve to close according to the operation mode; acquiring an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature and a second temperature of an outdoor air outlet of the air conditioner; and controlling the second expansion valve to be closed according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner. This application can realize the automation of refrigerant and retrieve, is favorable to improving work efficiency.
Description
Technical Field
The application belongs to the technical field of household appliances, and particularly relates to an air conditioner refrigerant recovery method and device, an air conditioner, a medium and a program product.
Background
The air conditioner generally comprises an air conditioner external unit and an air conditioner internal unit, wherein the air conditioner external unit and the air conditioner internal unit are connected through a refrigerant pipeline, and a refrigerant circularly flows between the air conditioner external unit and the air conditioner internal unit, so that the air conditioner realizes the heat exchange function.
When the air conditioner meets the conditions of moving a house and the like in the research, development and debugging stage or the using process, the disassembly and assembly machine operation is required, the refrigerant in the air conditioner is required to be recovered before disassembly, and leakage of the refrigerant in the disassembly and assembly machine process is prevented.
However, in the related art, the whole refrigerant recovery process requires manual operation, the working efficiency is low, and errors are easily caused.
Disclosure of Invention
In order to solve the above problems in the related art, that is, to solve the problems in the related art that the efficiency of the refrigerant recovery process is low and errors are easily generated, the present application provides an air conditioner refrigerant recovery method, apparatus, air conditioner, medium, and program product.
An embodiment of the application provides an air conditioner refrigerant recovery method, wherein the air conditioner comprises a condenser and an evaporator, a first end of the condenser is communicated with a first end of the evaporator through a first refrigerant pipeline, and a second end of the condenser is communicated with a second end of the evaporator through a second refrigerant pipeline; a first expansion valve is arranged on the first refrigerant pipeline, a compressor is arranged on the second refrigerant pipeline, and a second expansion valve is arranged between the compressor and the evaporator; the method comprises the following steps:
acquiring a refrigerant recovery instruction;
acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction;
controlling the first expansion valve to be closed according to the running mode;
acquiring an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature and a second temperature of an outdoor air outlet of the air conditioner;
and controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner.
The method as described above, optionally, controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature, and the second temperature, comprising:
determining a first temperature difference based on the indoor temperature and the temperature of an indoor air outlet of the air conditioner;
determining a second temperature difference based on the outdoor temperature and the temperature of an outdoor air outlet of the air conditioner;
and controlling the second expansion valve to close according to the first temperature difference and the second temperature difference.
The method as described above, optionally controlling the second expansion valve to close based on the first temperature difference and the second temperature difference, comprising:
if the first temperature difference is within a first preset temperature difference range and the second temperature difference is within a second preset temperature difference range, generating a second control instruction;
and sending the second control instruction to the second expansion valve to control the second expansion valve to close.
The method as described above, optionally controlling the first expansion valve to close according to the operating mode, comprising:
judging whether the operation mode is a refrigeration mode or not;
if so, sending a first control instruction to the first expansion valve to control the first expansion valve to be closed;
if not, controlling the air conditioner to switch to the refrigeration mode, and sending a first control instruction to the first expansion valve to control the first expansion valve to close.
The method as described above, optionally, sending a first control command to the first expansion valve, comprising:
acquiring the working state of the compressor, wherein the working state is a normal state or an abnormal state;
and if the working state is a normal state, sending a first control instruction to the first expansion valve.
The method as described above, optionally, after controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature, and the second temperature, further comprising:
and generating a shutdown instruction, and controlling the air conditioner to be shut down according to the shutdown instruction.
Another embodiment of the present application further provides a device for recycling refrigerant of an air conditioner, where the air conditioner includes a condenser and an evaporator, a first end of the condenser is communicated with a first end of the evaporator through a first refrigerant pipeline, and a second end of the condenser is communicated with a second end of the evaporator through a second refrigerant pipeline; a first expansion valve is arranged on the first refrigerant pipeline, a compressor is arranged on the second refrigerant pipeline, and a second expansion valve is arranged between the compressor and the evaporator; the device comprises:
the first acquisition module is used for acquiring a refrigerant recovery instruction;
the second acquisition module is used for acquiring the operation mode of the air conditioner according to the refrigerant recovery instruction;
a first expansion valve control module for controlling the first expansion valve to close according to the operation mode;
the third acquisition module is used for acquiring an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature and a second temperature of an outdoor air outlet of the air conditioner;
and the second expansion valve control module is used for controlling the second expansion valve to be closed according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner.
Yet another embodiment of the present application further provides an air conditioner, the air conditioner including: at least one processor and a memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the air conditioner to perform the method as described in any one of the above.
Yet another embodiment of the present application further provides a computer-readable storage medium having stored thereon computer-executable instructions for implementing the method as described in any one of the above when executed by a processor.
Yet another embodiment of the present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the method as described in any of the above.
As can be understood by those skilled in the art, embodiments of the present application provide a method, an apparatus, an air conditioner, a medium, and a program product for recovering a refrigerant of an air conditioner, where the air conditioner includes a condenser and an evaporator, a first end of the condenser is communicated with a first end of the evaporator through a first refrigerant pipeline, and a second end of the condenser is communicated with a second end of the evaporator through a second refrigerant pipeline; a first expansion valve is arranged on the first refrigerant pipeline, a compressor is arranged on the second refrigerant pipeline, and a second expansion valve is arranged between the compressor and the evaporator; the method comprises the following steps: acquiring a refrigerant recovery instruction; acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction; controlling the first expansion valve to close according to the operation mode; acquiring an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature and a second temperature of an outdoor air outlet of the air conditioner; and controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner. Through the arrangement, the refrigerant can be automatically recovered, and the improvement of the working efficiency is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present application, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.
Fig. 1 is an application scenario diagram of an air conditioner refrigerant recovery method according to an embodiment of the present application;
fig. 2 is a flowchart illustrating an air conditioning refrigerant recycling method according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating an air conditioner refrigerant recycling method according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an air conditioner refrigerant recovery device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.
Reference numerals are as follows:
110-a condenser; 120-a compressor; 130-axial fan;
210-an evaporator; 220-crossflow fan;
310-first refrigerant line; 311-two-way stop valve; 312-a first expansion valve; 320-a second refrigerant pipeline; 321-three-way stop valve; 322-a second expansion valve;
410-a first temperature sensor; 420-a second temperature sensor; 430-a third temperature sensor; 440-a fourth temperature sensor;
501-a first obtaining module; 502-a second obtaining module; 503-a first expansion valve control module; 504-a third obtaining module; 505-a second expansion valve control module;
601-a memory; 602-a processor; 603-input/output interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the research and development and debugging stage of the air conditioner or in the use process, when the air conditioner is moved and the like, the machine disassembly and assembly operation is required. The refrigerant in the air conditioner needs to be recovered before the machine is disassembled, so that the refrigerant is prevented from leaking in the process of disassembling and assembling the machine, and the problem of poor subsequent refrigerating or heating effect is further caused. In the related art, an air conditioner external unit and an air conditioner internal unit are communicated through a refrigerant pipeline, and a two-way stop valve and a three-way stop valve are arranged on the refrigerant pipeline. In the cooling mode, the two-way stop valve is arranged on the refrigerant inflow pipeline, and the three-way stop valve is arranged on the refrigerant outflow pipeline. When the refrigerant is recovered, a worker manually closes the two-way stop valve firstly, and then manually closes the three-way stop valve after waiting for a certain time, so that the refrigerant is recovered. However, the whole refrigerant recovery process needs manual operation, the waiting time after the two-way stop valve is closed is completely judged by manpower, the working efficiency is low, and errors are easy to occur. If the waiting time is too short, the refrigerant does not completely flow into the air conditioner external unit, and the refrigerant can leak when the air conditioner is dismounted; if the waiting time is too long, damage may be caused to the compressor.
In view of this, embodiments of the present application are directed to providing a method and an apparatus for recovering refrigerant of an air conditioner, a medium, and a program product, in which a first expansion valve and a second expansion valve are respectively disposed on two refrigerant pipelines between an external unit and an internal unit of the air conditioner, and then a refrigerant recovery instruction is obtained; acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction; controlling the first expansion valve to close according to the operation mode; then, acquiring an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature and a second temperature of an outdoor air outlet of the air conditioner; and controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recycle the refrigerant of the air conditioner and ensure that the refrigerant completely flows into an air conditioner outdoor unit. The embodiment of the application can realize automatic recovery of the refrigerant, and is favorable for improving the working efficiency.
In order to facilitate understanding of the present application, an application scenario of the smart home control method provided in the embodiment of the present application is schematically described below.
Fig. 1 is an application scenario diagram of an air-conditioning refrigerant recovery method according to an embodiment of the present application. Referring to fig. 1, an application scenario of the air conditioning refrigerant recovery method of the present embodiment includes: the air conditioner comprises an air conditioner outer unit and an air conditioner inner unit, wherein a condenser 110 is arranged in the air conditioner outer unit, an evaporator 210 is arranged in the air conditioner inner unit, a first end of the condenser 110 is connected with a first end of the evaporator 210 through a first refrigerant pipeline 310, and a second end of the condenser 110 is connected with a second end of the evaporator 210 through a second refrigerant pipeline 320. The first refrigerant pipeline 310 is provided with a two-way stop valve 311; the second refrigerant pipe 320 is provided with a compressor 120, and a three-way stop valve 321 is provided between the compressor 120 and the evaporator 210. The refrigerant flows between the condenser 110 and the evaporator 210 through the first refrigerant line 310 and the second refrigerant line 320 by driving the compressor 120, thereby performing heat exchange. Specifically, in the condenser 110, the refrigerant exchanges heat with the outdoor air by the action of the axial fan 130; in the evaporator 210, the refrigerant exchanges heat with the indoor air by the operation of the cross flow fan 220.
In order to realize automatic refrigerant collection, in this embodiment, the first refrigerant pipeline 310 is further provided with a first expansion valve 312, the second refrigerant pipeline 320 is further provided with a second expansion valve 322, and both the first expansion valve 312 and the second expansion valve 322 are in communication connection with a processor of the air conditioner, and are opened and closed under the control of the processor, so as to control the opening or closing of the refrigerant pipeline. In addition, in this embodiment, a first temperature sensor 410 is further disposed at an indoor air outlet of the air conditioner, a second temperature sensor 420 is further disposed indoors, a third temperature sensor 430 is further disposed at an outdoor air outlet of the air conditioner, and a fourth temperature sensor 440 is further disposed outdoors, the first temperature sensor 410, the second temperature sensor 420, the third temperature sensor 430, and the fourth temperature sensor 440 are also in communication connection with a processor of the air conditioner, in an application scenario shown in fig. 1, in a cooling mode, the processor of the air conditioner can better control opening and closing of the first expansion valve 312 and the second expansion valve 322 by analyzing temperatures collected by the temperature sensors, thereby implementing the air-conditioning refrigerant recovery method provided in this embodiment. The method comprises the following specific steps:
fig. 2 is a flowchart of an air conditioner refrigerant recovery method according to an embodiment of the present application. Referring to fig. 2, the method includes:
and step S110, acquiring a refrigerant recovery command.
For example, the media recycling instruction in the present embodiment may be input by a user. For example, a control panel of an air conditioner internal unit is provided with a corresponding refrigerant recovery mode key, and a user can press the key to enable a processor of the air conditioner to obtain a refrigerant recovery instruction. For another example, a corresponding refrigerant recovery mode key may be provided on a remote controller of the air conditioner, and a user may press the key to enable a processor of the air conditioner to obtain a refrigerant recovery instruction.
And step S120, acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction.
For example, the operation mode of the air conditioner is an operation mode of the air conditioner in the current state, and the operation mode may be displayed on a control panel of the air conditioner; or may be displayed on a remote controller of the air conditioner. After receiving the refrigerant recovery instruction, the processor of the air conditioner can directly call the operation mode of the air conditioner.
And step S130, controlling the first expansion valve to close according to the operation mode.
For example, after the processor of the air conditioner obtains the operation mode, it may determine whether the operation mode meets requirements, and if so, the processor of the air conditioner may further send a control instruction to the first expansion valve, and the first expansion valve is closed after receiving the control instruction, so as to prevent the refrigerant from flowing through the first refrigerant pipeline.
Step S140, obtaining an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature, and a second temperature of an outdoor air outlet of the air conditioner.
For example, a plurality of temperature sensors may be installed at different positions in the room, and after the temperature fed back by each temperature sensor is obtained, the average value of the plurality of temperature sensors may be taken as the indoor temperature. The first temperature of the indoor air outlet of the air conditioner can be acquired through a temperature sensor arranged at the air outlet of an indoor unit of the air conditioner. The outdoor temperature may be acquired by a temperature sensor installed outdoors. For example, a temperature sensor may be installed at a distance from an outdoor unit of an air conditioner, which may be set as needed. The second temperature of the outdoor air outlet of the air conditioner can be obtained through a temperature sensor arranged at the air outlet of the air conditioner external unit.
And S150, controlling the second expansion valve to be closed according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner.
For example, the processor of the air conditioner may compare the indoor temperature, the first temperature, the outdoor temperature, and the second temperature with a preset temperature value, and then determine whether the refrigerant completely flows into the air conditioner external machine, thereby determining whether the second expansion valve needs to be closed. When the refrigerant is judged to completely flow into the air conditioner external unit, the control instruction can be sent to the second expansion valve, and the second expansion valve is closed after receiving the control instruction, so that the refrigerant is prevented from flowing from the second refrigerant pipeline, and the refrigerant is completely recycled into the air conditioner external unit.
After receiving the refrigerant recovery instruction, the embodiment controls the first expansion valve to be automatically closed according to the operation mode, and further controls the second expansion valve to be automatically closed after judging that all the refrigerants flow to the air conditioner outdoor unit according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature, so that the refrigerant is automatically recovered, and the work efficiency is improved.
Fig. 3 is a flowchart of an air conditioning refrigerant recycling method according to another embodiment of the present disclosure. Referring to fig. 3, the method includes:
and step S210, obtaining a refrigerant recovery command.
And step S220, acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction.
In this embodiment, steps S210 to S220 are the same as steps S110 to S120 in the above method, and are not described herein again.
And step S230, judging whether the operation mode is a cooling mode.
For example, in this embodiment, the processor of the air conditioner may determine whether the air conditioner is currently operated in the cooling mode according to the obtained operation mode.
If yes, step S240 is executed to send a first control command to the first expansion valve to control the first expansion valve to close.
If not, step S250 is executed to control the air conditioner to switch to the cooling mode, and a first control instruction is sent to the first expansion valve to control the first expansion valve to close.
In this step, the processor of the air conditioner may control the air conditioner to switch to the cooling mode, and then send a first control command to the first expansion valve to control the first expansion valve to close. In fig. 1, arrows indicate the flowing direction of the refrigerant in the cooling mode, and as can be seen from fig. 1, in the cooling mode, the refrigerant flows out of the compressor, then flows into the condenser, passes through the condenser, and then reaches the first expansion valve, so that the refrigerant has a sufficient buffering path. If the compressor runs in the heating mode, the distance between the compressor and the second expansion valve is too short, the second expansion valve is directly closed due to lack of necessary buffering, the compressor may be stopped by the refrigerant, the refrigerant recovery fails, and the compressor is seriously damaged.
Further, before the first control instruction is sent, the working state of the compressor may be obtained, where the working state is a normal state or an abnormal state.
If the working state is a normal state, sending a first control instruction to the first expansion valve; if the working state is an abnormal state, a first control instruction is not sent to the first expansion valve; thereby ensuring the normal operation of the subsequent refrigerant recovery operation.
Step S260, obtaining an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature, and a second temperature of an outdoor air outlet of the air conditioner.
Step S260 in this embodiment is the same as step S140 in the above method, and is not described herein again.
Step S270, determining a first temperature difference based on the indoor temperature and the temperature of an indoor air outlet of the air conditioner; the second temperature difference is determined based on the outdoor temperature and the temperature of the outdoor air outlet of the air conditioner.
Illustratively, the first temperature difference is an absolute value of a difference between an indoor temperature and a temperature of an indoor air outlet of the air conditioner; the second temperature difference is an absolute value of a difference between the outdoor temperature and the temperature of the outdoor air outlet of the air conditioner.
And step S280, controlling the second expansion valve to close according to the first temperature difference and the second temperature difference.
For example, a first preset temperature difference range and a second preset temperature difference range may be pre-stored in a memory of the air conditioner, and a processor of the air conditioner may compare the first temperature difference and the second temperature difference with the first preset temperature difference range and the second preset temperature difference range, respectively, and then determine whether to close the second expansion valve.
Specifically, if the first temperature difference is within a first preset temperature difference range and the second temperature difference is within a second preset temperature difference range, it indicates that the temperature of the indoor air outlet of the air conditioner is relatively close to the indoor temperature, and the evaporator basically has no refrigerant; the temperature of the outdoor air outlet of the air conditioner is closer to the outdoor temperature, and the refrigerant stored in the condenser basically exchanges heat. Based on the above, it can be determined that the refrigerant is basically recovered to the air conditioner external unit, at this time, a second control instruction may be generated, and the second control instruction may be sent to the second expansion valve to control the second expansion valve to close.
And if the first temperature difference is out of the first preset temperature difference range and/or the second temperature difference is out of the second preset temperature difference range, the air conditioner keeps running in the current state.
And step S290, generating a shutdown instruction, and controlling the air conditioner to be shut down according to the shutdown instruction.
For example, after the refrigerant is recovered, the air conditioner may generate a shutdown instruction, and shutdown the air conditioner according to the shutdown instruction, so as to stop the compressor.
After receiving the refrigerant recovery instruction, the embodiment controls the first expansion valve to be automatically closed in the refrigeration mode, further calculates to obtain a first temperature difference and a second temperature difference according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature, indicates that all refrigerants flow to an air conditioner outdoor unit when the first temperature difference is within a first preset temperature difference range and the second temperature difference is within a second preset temperature difference range, and then controls the second expansion valve to be automatically closed, so that the refrigerant is automatically recovered, and the work efficiency is improved.
Fig. 4 is a schematic structural diagram of an air conditioner refrigerant recovery device according to an embodiment of the present application. Referring to fig. 4, the present embodiment further provides an air conditioner refrigerant recycling device, including:
the first obtaining module 501, the first obtaining module 501 is configured to obtain a refrigerant recovery instruction;
the second obtaining module 502, the second obtaining module 502 is configured to obtain an operation mode of the air conditioner according to the refrigerant recovery instruction;
a first expansion valve control module 503, wherein the first expansion valve control module 503 is used for controlling the first expansion valve to close according to the operation mode;
the third obtaining module 504, where the third obtaining module 504 is configured to obtain an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature, and a second temperature of an outdoor air outlet of the air conditioner;
and the second expansion valve control module 505 is configured to control the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature, and the second temperature, so as to recover the refrigerant of the air conditioner.
The air conditioner refrigerant recovery device provided in this embodiment may perform the operation of the processor of the air conditioner in the above method embodiments, and the implementation principle and technical effects are similar, which are not described herein again.
The air conditioner refrigerant recovery device of the embodiment receives a refrigerant recovery instruction, controls the first expansion valve to be automatically closed in a refrigeration mode, further calculates to obtain a first temperature difference and a second temperature difference according to indoor temperature, the first temperature, outdoor temperature and the second temperature, indicates that the refrigerant completely flows to an air conditioner outdoor unit when the first temperature difference is within a first preset temperature difference range and the second temperature difference is within a second preset temperature difference range, and then controls the second expansion valve to be automatically closed, so that the refrigerant is automatically recovered, and the work efficiency is improved.
Fig. 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present application. Referring to fig. 5, the present embodiment further provides an air conditioner, including: at least one processor 602 and memory 601;
the memory 601 stores computer-executable instructions;
the at least one processor 602 is configured to implement the air-conditioning refrigerant recovery method in this embodiment when the program instructions are executed, and specific implementation principles may be referred to in the foregoing embodiments, which are not described herein again.
The air conditioner may further include an input/output interface 603.
The input/output interface 603 may include separate output and input interfaces, or may be an integrated interface that integrates input and output. The output interface is used for outputting data, and the input interface is used for acquiring input data.
The embodiment also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by at least one processor of an electronic device, the computer-readable storage medium is configured to implement the air-conditioning refrigerant recycling method in the foregoing embodiments.
The present embodiments also provide a computer program product comprising execution instructions stored in a readable storage medium. The at least one processor of the electronic device may read the execution instruction from the readable storage medium, and the execution of the execution instruction by the at least one processor causes the electronic device to implement the air conditioning refrigerant recovery method provided in the above various embodiments.
All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape, floppy disk, optical disk, and any combination thereof.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.
In the present application, the terms "include" and variations thereof may refer to non-limiting inclusions; the term "or" and variations thereof may mean "and/or". The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Claims (10)
1. The method for recovering the refrigerant of the air conditioner is characterized by comprising a condenser and an evaporator, wherein a first end of the condenser is communicated with a first end of the evaporator through a first refrigerant pipeline, and a second end of the condenser is communicated with a second end of the evaporator through a second refrigerant pipeline; a first expansion valve is arranged on the first refrigerant pipeline, a compressor is arranged on the second refrigerant pipeline, and a second expansion valve is arranged between the compressor and the evaporator; the method comprises the following steps:
acquiring a refrigerant recovery instruction;
acquiring an operation mode of the air conditioner according to the refrigerant recovery instruction;
controlling the first expansion valve to be closed according to the running mode;
acquiring an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature and a second temperature of an outdoor air outlet of the air conditioner;
and controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner.
2. The method of claim 1, wherein controlling the second expansion valve to be closed according to the indoor temperature, the first temperature, the outdoor temperature, and the second temperature comprises:
determining a first temperature difference based on the indoor temperature and the temperature of an indoor air outlet of the air conditioner;
determining a second temperature difference based on the outdoor temperature and the temperature of an outdoor air outlet of the air conditioner;
and controlling the second expansion valve to close according to the first temperature difference and the second temperature difference.
3. The method of claim 2, wherein controlling the second expansion valve to close based on the first temperature differential and the second temperature differential comprises:
if the first temperature difference is within a first preset temperature difference range and the second temperature difference is within a second preset temperature difference range, generating a second control instruction;
and sending the second control instruction to the second expansion valve to control the second expansion valve to close.
4. The method of any of claims 1-3, wherein controlling the first expansion valve to close, in accordance with the operating mode, comprises:
judging whether the operation mode is a refrigeration mode or not;
if so, sending a first control instruction to the first expansion valve to control the first expansion valve to be closed;
if not, controlling the air conditioner to switch to the refrigeration mode, and sending a first control instruction to the first expansion valve to control the first expansion valve to close.
5. The method of claim 4, wherein sending a first control command to the first expansion valve comprises:
acquiring the working state of the compressor, wherein the working state is a normal state or an abnormal state;
and if the working state is a normal state, sending a first control instruction to the first expansion valve.
6. The method of claim 4, wherein after controlling the second expansion valve to be closed according to the indoor temperature, the first temperature, the outdoor temperature, and the second temperature, further comprising:
and generating a shutdown instruction, and controlling the air conditioner to shut down according to the shutdown instruction.
7. The air conditioner refrigerant recovery device is characterized by comprising a condenser and an evaporator, wherein a first end of the condenser is communicated with a first end of the evaporator through a first refrigerant pipeline, and a second end of the condenser is communicated with a second end of the evaporator through a second refrigerant pipeline; a first expansion valve is arranged on the first refrigerant pipeline, a compressor is arranged on the second refrigerant pipeline, and a second expansion valve is arranged between the compressor and the evaporator; the device comprises:
the first acquisition module is used for acquiring a refrigerant recovery instruction;
the second acquisition module is used for acquiring the operation mode of the air conditioner according to the refrigerant recovery instruction;
a first expansion valve control module for controlling the first expansion valve to close according to the operation mode;
a third obtaining module, configured to obtain an indoor temperature, a first temperature of an indoor air outlet of the air conditioner, an outdoor temperature, and a second temperature of an outdoor air outlet of the air conditioner;
and the second expansion valve control module is used for controlling the second expansion valve to be closed according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature so as to recover the refrigerant of the air conditioner.
8. An air conditioner, characterized in that the air conditioner comprises: at least one processor and memory;
the memory stores computer execution instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the air conditioner to perform the method of any of claims 1-6.
9. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform the method of any one of claims 1-6.
10. A computer program product comprising a computer program which, when executed by a processor, carries out the method according to any one of claims 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210705165.3A CN115264811A (en) | 2022-06-21 | 2022-06-21 | Air conditioner refrigerant recovery method and device, air conditioner, medium and program product |
| PCT/CN2023/077980 WO2023246147A1 (en) | 2022-06-21 | 2023-02-23 | Air conditioner refrigerant recovery method and apparatus, air conditioner, medium, and program product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210705165.3A CN115264811A (en) | 2022-06-21 | 2022-06-21 | Air conditioner refrigerant recovery method and device, air conditioner, medium and program product |
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| Publication Number | Publication Date |
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| CN115264811A true CN115264811A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210705165.3A Pending CN115264811A (en) | 2022-06-21 | 2022-06-21 | Air conditioner refrigerant recovery method and device, air conditioner, medium and program product |
Country Status (2)
| Country | Link |
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| CN (1) | CN115264811A (en) |
| WO (1) | WO2023246147A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115930397A (en) * | 2022-11-21 | 2023-04-07 | 珠海格力电器股份有限公司 | Refrigerant recovery control method and device and air conditioner |
| 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 |
| WO2024103793A1 (en) * | 2022-11-14 | 2024-05-23 | 青岛海信日立空调系统有限公司 | Air conditioning system, and control method therefor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457054B (en) * | 2014-11-17 | 2017-02-22 | 广东美的制冷设备有限公司 | Method and device for recovering air conditioner coolants |
| CN109357369B (en) * | 2018-09-10 | 2020-06-02 | 珠海格力电器股份有限公司 | Air conditioner and refrigerant recovery control method thereof |
| CN110822664A (en) * | 2019-11-27 | 2020-02-21 | 广东美的制冷设备有限公司 | Refrigerant recovery method and system of air conditioner and air conditioner |
| CN113757925A (en) * | 2021-08-12 | 2021-12-07 | 海信（山东）空调有限公司 | Air conditioner and control method |
| CN115264811A (en) * | 2022-06-21 | 2022-11-01 | 青岛海尔空调器有限总公司 | Air conditioner refrigerant recovery method and device, air conditioner, medium and program product |
-
2022
- 2022-06-21 CN CN202210705165.3A patent/CN115264811A/en active Pending
-
2023
- 2023-02-23 WO PCT/CN2023/077980 patent/WO2023246147A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2024103793A1 (en) * | 2022-11-14 | 2024-05-23 | 青岛海信日立空调系统有限公司 | Air conditioning system, and control method therefor |
| CN115930397A (en) * | 2022-11-21 | 2023-04-07 | 珠海格力电器股份有限公司 | Refrigerant recovery control method and device and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023246147A1 (en) | 2023-12-28 |
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