CN113847684A - Compressor bias current processing method and device, storage medium and electronic equipment - Google Patents
Compressor bias current processing method and device, storage medium and electronic equipment Download PDFInfo
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- CN113847684A CN113847684A CN202111061000.9A CN202111061000A CN113847684A CN 113847684 A CN113847684 A CN 113847684A CN 202111061000 A CN202111061000 A CN 202111061000A CN 113847684 A CN113847684 A CN 113847684A
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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
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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
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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Abstract
The application relates to the technical field of intelligent control, in particular to a method and a device for processing bias current of a compressor, a storage medium and electronic equipment, comprising the following steps of: judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time. This application is when detecting the compressor bias flow, through stopping the operation of two compressors, only operates the mode of single compressor, reduces the liquid level in the vapour and liquid separator, restarts air conditioning unit afterwards, just can realize that the refrigerant evenly flows to two compressors.
Description
Technical Field
The present disclosure relates to the field of intelligent control technologies, and in particular, to a method and an apparatus for processing a bias current of a compressor, a storage medium, and an electronic device.
Background
When the air conditioner with the two compressors operates, the refrigerant entering the compressors may have a bias flow phenomenon, so that the refrigerant flowing through each compressor is inconsistent in quantity, and the performance and the reliability of the compressors are influenced after the air conditioner with the two compressors operates for a long time.
The existing solution is to use two vapor-liquid separators or a larger vapor-liquid separator to solve the problem of compressor drift, resulting in increased cost. And for a compact unit, it is not possible to add another vapor-liquid separator or replace a larger vapor-liquid separator.
Disclosure of Invention
In view of the above problems, the present application provides a method and an apparatus for processing a bias flow of a compressor, a storage medium, and an electronic device, which solve the technical problem of cost increase caused by adding a vapor-liquid separator or replacing a larger vapor-liquid separator in the related art.
In a first aspect, the present application provides a method for processing a bias flow of a compressor, which is applied to an air conditioning unit with two compressors, and the method includes:
judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not;
if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not;
if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors;
turning off the target compressor;
and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time.
In some embodiments, the determining whether the refrigerant leaving the vapor-liquid separator is in a vapor-liquid two-phase state includes:
if T is detected for a second predetermined timeGas outlet-TIs low in≤TPreparation ofJudging that the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state;
wherein, TGas outletIs the outlet temperature, T, of the vapor-liquid separatorIs low inIs the inlet air temperature, T, of the vapor-liquid separatorPreparation ofIs a preset temperature threshold.
In some embodiments, the determining whether a compressor bias flow is present includes:
if the | T is detected for the third preset timeTop 1-TTop 2|≥TTop 0If so, judging that the compressor bias flow occurs;
wherein, TTop 1Is the first compressor shell top temperature, TTop 2Is the second compressor shell top temperature, TTop 0A preset shell top temperature threshold.
In some embodiments, the target compressor of the selected dual compressors in which the bias flow occurs includes:
comparing the shell top temperatures of the two compressors;
if TTop 1＞TTop 2Judging the bias flow of the second compressor;
if TTop 1＞TTop 2Then the first compressor bias flow is determined.
In a second aspect, a compressor bias flow processing device is applied to an air conditioning unit with two compressors, and the device includes:
the low-pressure sensor is used for detecting the air inlet temperature of a vapor-liquid separator in the air conditioning unit;
the outlet pipe temperature sensing bulb is used for detecting the outlet air temperature of a vapor-liquid separator in the air conditioning unit;
the first shell top temperature sensing bulb is used for detecting the shell top temperature of a first compressor in the air conditioning unit;
the second shell top temperature sensing bulb is used for detecting the shell top temperature of a second compressor in the air conditioning unit;
the controller is respectively connected with the low-pressure sensor, the outlet pipe temperature sensing bulb, the first shell top temperature sensing bulb, the second shell top temperature sensing bulb, the first compressor and the second compressor and is used for judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time.
In some embodiments, the controller is configured to detect T at a second preset time in successionGas outlet-TIs low in≤TPreparation ofJudging that the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state;
wherein, TGas outletIs the outlet temperature, T, of the vapor-liquid separatorIs low inIs the inlet air temperature, T, of the vapor-liquid separatorPreparation ofIs a preset temperature threshold.
In some embodiments, the controller is configured to detect | T at a third preset timeTop 1-TTop 2|≥TTop 0If so, judging that the compressor bias flow occurs;
wherein, TTop 1Is the first compressor shell top temperature, TTop 2Is the second compressor shell top temperature, TTop 0A preset shell top temperature threshold.
In some embodiments, the controller is configured to compare shell dome temperatures of the two compressors; if TTop 1＞TTop 2Judging the bias flow of the second compressor; if TTop 1＞TTop 2Then the first compressor bias flow is determined.
In a third aspect, a storage medium storing a computer program, which is executable by one or more processors, is used to implement the compressor bias flow processing method as described in the first aspect.
In a fourth aspect, an electronic device comprises a memory and a processor, the memory having a computer program stored thereon, the memory and the processor being communicatively connected to each other, the computer program, when executed by the processor, performing the compressor bias flow processing method according to the first aspect.
The application provides a compressor bias current processing method, a device, a storage medium and an electronic device, which comprise: judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time. This application is when detecting the compressor bias flow, through stopping the operation of two compressors, only operates the mode of single compressor, reduces the liquid level in the vapour and liquid separator, restarts air conditioning unit afterwards, just can realize that the refrigerant evenly flows to two compressors.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart illustrating a method for processing a compressor bias flow according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a bias flow processing device of a compressor installed in an air conditioning unit according to an embodiment of the present application;
fig. 3 is a connection block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following detailed description will be provided with reference to the accompanying drawings and embodiments, so that how to apply the technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments and various features in the embodiments of the present application can be combined with each other without conflict, and the formed technical solutions are all within the scope of protection of the present application.
As can be seen from the background art, the existing solutions use two vapor-liquid separators or a larger vapor-liquid separator to solve the problem of compressor drift, resulting in increased costs. And for a compact unit, it is not possible to add another vapor-liquid separator or replace a larger vapor-liquid separator.
In view of the above, the present application provides a method and an apparatus for processing a bias flow of a compressor, a storage medium, and an electronic device, which solve the technical problem of cost increase caused by adding a vapor-liquid separator or replacing a larger vapor-liquid separator in the related art.
Example one
Fig. 1 is a schematic flow chart of a compressor bias flow processing method according to an embodiment of the present application, and as shown in fig. 1, the method is applied to an air conditioning unit with two compressors, and the method includes:
s101, judging whether the refrigerant leaving the vapor-liquid separator is in a vapor-liquid two-phase state or not;
it should be noted that, the method is applied to an air conditioning unit with two compressors, and the compressor bias flow occurs only on the premise that both of the two compressors are in operation, so before executing step S101, the method may further include a step of: and judging whether the two compressors are in the running state or not.
Because the air conditioning unit generally single compressor when can satisfy the capacity demand, just can move another compressor with regard to single compressor operation, can not satisfy, consequently can judge whether both are in the running state through the compressor that detects secondary operation whether be in the running state, can detect the running state of a compressor less, play raising the efficiency and energy-conserving effect.
S102, if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not;
s103, if judging that the compressor bias flow occurs, selecting a target compressor with the bias flow in the double compressors;
s104, turning off the target compressor;
it should be noted that, when one compressor is stopped and the other compressor is operated independently, the liquid refrigerant in the vapor-liquid separator is consumed, and the vapor-liquid separator is filled with the gaseous refrigerant, the compressor does not drift. If two compressors are directly operated, the bias flow can cause the discharge superheat degree of one compressor to be large, and the discharge superheat degree of one compressor to be small, which is unfavorable for the two compressors.
And S105, restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time.
It should be noted that, when all the gas-liquid separators are filled with gaseous refrigerant, T isGas outlet-TIs low in＞TPreparation ofNamely, the difference value between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is greater than a preset temperature threshold, and in order to ensure accuracy, a first preset time is set to ensure that gaseous refrigerants are all in the vapor-liquid separator.
In some embodiments, the determining whether the refrigerant leaving the vapor-liquid separator is in a vapor-liquid two-phase state includes:
if T is detected for a second predetermined timeGas outlet-TIs low in≤TPreparation ofJudging that the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state;
wherein, TGas outletIs the outlet temperature, T, of the vapor-liquid separatorIs low inIs the inlet air temperature, T, of the vapor-liquid separatorPreparation ofIs a preset temperature threshold.
It should be noted that the difference between the outlet temperature of the gas-liquid separator and the inlet temperature of the gas-liquid separator when the refrigerant leaving the gas-liquid separator is in the pure gas state is different from the difference between the outlet temperature of the gas-liquid separator and the inlet temperature of the gas-liquid separator when the refrigerant leaving the gas-liquid separator is in the gas-liquid two-phase state, so a preset temperature threshold value can be set according to the difference between the outlet temperature of the gas-liquid separator and the inlet temperature of the gas-liquid separator when the refrigerant leaving the gas-liquid separator is in the pure gas state, and the state of the refrigerant leaving the gas-liquid separator is determined.
In some embodiments, the determining whether a compressor bias flow is present includes:
if the | T is detected for the third preset timeTop 1-TTop 2|≥TTop 0If so, judging that the compressor bias flow occurs;
wherein, TTop 1Is the first compressor shell top temperature, TTop 2Is the second compressor shell top temperature, TTop 0A preset shell top temperature threshold.
It should be noted that once the compressor drift occurs, the cooling effects of the two compressors are inconsistent, the cooling effects of the two compressors can be determined to be inconsistent by detecting the shell top temperatures of the two compressors, that is, the drift occurs, and the preset shell top temperature threshold is theoretically 0, when the refrigerants entering the two compressors are in a pure gas state, the cooling effects of the two compressors are the same, the difference between the shell top temperature of the first compressor and the shell top temperature of the second compressor is equal to 0, but in an actual application process, a small amount of liquid refrigerants are allowed to occur, that is, the difference between the shell top temperature of the first compressor and the shell top temperature of the second compressor is allowed to be greater than 0, so that a reasonable preset shell top temperature threshold greater than 0 can be selected according to experience, for example, 10 ℃, and the third preset time can be preferably 20 seconds.
In some embodiments, the target compressor of the selected dual compressors in which the bias flow occurs includes:
comparing the shell top temperatures of the two compressors;
if TTop 1＞TTop 2Judging the bias flow of the second compressor;
if TTop 1＞TTop 2Then the first compressor bias flow is determined.
It should be noted that if TTop 1＞TTop 2If so, indicating that more liquid refrigerant flows into the second compressor, and therefore determining the bias flow of the second compressor; if TTop 1＞TTop 2Then, it indicates that more liquid refrigerant flows into the first compressor, and therefore the first compressor bias flow is determined.
In summary, the embodiment of the present application provides a method for processing a bias flow of a compressor, including: judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time. This application is when detecting the compressor bias flow, through stopping the operation of two compressors, only operates the mode of single compressor, reduces the liquid level in the vapour and liquid separator, restarts air conditioning unit afterwards, just can realize that the refrigerant evenly flows to two compressors.
Example two
Based on the compressor bias flow processing method disclosed in the above embodiment of the present invention, fig. 2 specifically discloses a compressor bias flow processing device applying the compressor bias flow processing method, and the compressor bias flow processing device in fig. 2 is already installed in an air conditioning unit.
As shown in fig. 2, an embodiment of the present invention discloses a compressor bias flow processing apparatus, which is applied to an air conditioning unit with two compressors, and the apparatus includes:
the low-pressure sensor 201 is used for detecting the inlet air temperature of a vapor-liquid separator in the air conditioning unit;
the outlet pipe temperature sensing bulb 202 is used for detecting the outlet air temperature of a vapor-liquid separator in the air conditioning unit;
the first shell top temperature sensing bulb 203 is used for detecting the shell top temperature of a first compressor in the air conditioning unit;
the second shell top temperature sensing bulb 204 is used for detecting the shell top temperature of a second compressor in the air conditioning unit;
the controller 205 is connected to the low-pressure sensor, the outlet pipe temperature sensing bulb, the first shell top temperature sensing bulb, the second shell top temperature sensing bulb, the first compressor and the second compressor respectively, and is configured to determine whether a refrigerant leaving the vapor-liquid separator is in a vapor-liquid two-phase state; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time.
In some embodiments, the controller 205 is configured to detect T at a second preset timeGas outlet-TIs low in≤TPreparation ofJudging that the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state;
wherein, TGas outletIs the outlet temperature, T, of the vapor-liquid separatorIs low inIs the inlet air temperature, T, of the vapor-liquid separatorPreparation ofIs a preset temperature threshold.
In some embodiments, the controller 205 is configured to detect | T at a third preset timeTop 1-TTop 2|≥TTop 0If so, judging that the compressor bias flow occurs;
wherein, TTop 1Is the first compressor shell top temperature, TTop 2Is the second compressor shell top temperature, TTop 0A preset shell top temperature threshold.
In some embodiments, the controller 205 is configured to compare the shell dome temperatures of the two compressors; if TTop 1＞TTop 2Judging the bias flow of the second compressor; if TTop 1＞TTop 2Then the first compressor bias flow is determined. .
For the specific working processes of the data low-pressure sensor 201, the outlet tube thermal bulb 202, the first shell top thermal bulb 203, the second shell top thermal bulb 204 and the controller 205 in the compressor bias flow processing apparatus disclosed in the above embodiment of the present invention, reference may be made to the corresponding contents in the compressor bias flow processing method disclosed in the above embodiment of the present invention, and details are not described here.
In summary, the embodiment of the present application provides a compressor bias current processing apparatus, including: judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time. This application is when detecting the compressor bias flow, through stopping the operation of two compressors, only operates the mode of single compressor, reduces the liquid level in the vapour and liquid separator, restarts air conditioning unit afterwards, just can realize that the refrigerant evenly flows to two compressors.
EXAMPLE III
The present embodiment further provides a computer-readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application mall, etc., on which a computer program is stored, where the computer program, when executed by a processor, may implement the method steps of the first embodiment, and thus, the description of the embodiment is not repeated herein.
Example four
Fig. 3 is a connection block diagram of an electronic device 300 according to an embodiment of the present disclosure, and as shown in fig. 3, the electronic device 300 may include: a processor 301, a memory 302, a multimedia component 303, an input/output (I/O) interface 304, and a communication component 305.
The processor 301 is configured to perform all or part of the steps of the compressor bias flow processing method according to the first embodiment. The memory 302 is used to store various types of data, which may include, for example, instructions for any application or method in the electronic device, as well as application-related data.
The Processor 301 may be implemented by an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, and is configured to perform the bias current Processing method of the compressor in the first embodiment.
The Memory 302 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk.
The multimedia component 303 may include a screen, which may be a touch screen, and an audio component for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in a memory or transmitted through a communication component. The audio assembly also includes at least one speaker for outputting audio signals.
The I/O interface 304 provides an interface between the processor 301 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons.
The communication component 305 is used for wired or wireless communication between the electronic device 300 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so that the corresponding Communication component 305 may include: Wi-Fi module, bluetooth module, NFC module.
In summary, the present application provides a method, an apparatus, a storage medium, and an electronic device for processing a bias current of a compressor, where the method includes: judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time. This application is when detecting the compressor bias flow, through stopping the operation of two compressors, only operates the mode of single compressor, reduces the liquid level in the vapour and liquid separator, restarts air conditioning unit afterwards, just can realize that the refrigerant evenly flows to two compressors.
In the embodiments provided in the present application, it should be understood that the disclosed method can be implemented in other ways. The above-described method embodiments are merely illustrative.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although the embodiments disclosed in the present application are described above, the above descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. A method for processing bias flow of a compressor is applied to an air conditioning unit with two compressors, and the method comprises the following steps:
judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not;
if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not;
if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors;
turning off the target compressor;
and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time.
2. The method of claim 1, wherein the determining whether the refrigerant exiting the vapor-liquid separator is in a vapor-liquid two-phase state comprises:
if T is detected for a second predetermined timeGas outlet-TIs low in≤TPreparation ofJudging that the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state;
wherein, TGas outletIs the outlet temperature, T, of the vapor-liquid separatorIs low inIs the inlet air temperature, T, of the vapor-liquid separatorPreparation ofIs a preset temperature threshold.
3. The method of claim 1, wherein said determining whether a compressor bias flow is present comprises:
if the | T is detected for the third preset timeTop 1-TTop 2|≥TTop 0If so, judging that the compressor bias flow occurs;
wherein, TTop 1Is the first compressor shell top temperature, TTop 2Is the second compressor shell top temperature, TTop 0A preset shell top temperature threshold.
4. The method of claim 1, wherein selecting a target compressor of the two compressors for which a bias flow is to occur comprises:
comparing the shell top temperatures of the two compressors;
if TTop 1＞TTop 2Judging the bias flow of the second compressor;
if TTop 1＞TTop 2Then the first compressor bias flow is determined.
5. A compressor bias flow processing device is applied to an air conditioning unit with two compressors, and the device comprises:
the low-pressure sensor is used for detecting the air inlet temperature of a vapor-liquid separator in the air conditioning unit;
the outlet pipe temperature sensing bulb is used for detecting the outlet air temperature of a vapor-liquid separator in the air conditioning unit;
the first shell top temperature sensing bulb is used for detecting the shell top temperature of a first compressor in the air conditioning unit;
the second shell top temperature sensing bulb is used for detecting the shell top temperature of a second compressor in the air conditioning unit;
the controller is respectively connected with the low-pressure sensor, the outlet pipe temperature sensing bulb, the first shell top temperature sensing bulb, the second shell top temperature sensing bulb, the first compressor and the second compressor and is used for judging whether the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state or not; if the refrigerant leaving the gas-liquid separator is judged to be in a gas-liquid two-phase state, judging whether the compressor bias flow occurs or not; if the compressor bias flow is judged to occur, selecting a target compressor with the bias flow in the double compressors; turning off the target compressor; and restarting the air conditioning unit when the difference between the outlet air temperature of the vapor-liquid separator and the inlet air temperature of the vapor-liquid separator is detected to be greater than a preset temperature threshold value and the duration time reaches a first preset time.
6. The apparatus of claim 5, wherein the controller is configured to detect T at a second predetermined timeGas outlet-TIs low in≤TPreparation ofJudging that the refrigerant leaving the gas-liquid separator is in a gas-liquid two-phase state;
wherein, TGas outletIs the outlet temperature, T, of the vapor-liquid separatorIs low inIs the inlet air temperature, T, of the vapor-liquid separatorPreparation ofIs a preset temperature threshold.
7. The apparatus of claim 5, wherein the controller is configured to detect the | T at a third preset timeTop 1-TTop 2|≥TTop 0If so, judging that the compressor bias flow occurs;
wherein, TTop 1Is the first compressor shell top temperature, TTop 2Is the second compressor shell top temperature, TTop 0A preset shell top temperature threshold.
8. The apparatus of claim 5, wherein the controller is configured to compare shell top temperatures of the two compressors; if TTop 1＞TTop 2Judging the bias flow of the second compressor; if TTop 1＞TTop 2Then the first compressor bias flow is determined.
9. A storage medium storing a computer program executable by one or more processors to perform the method of processing a compressor bias flow according to any one of claims 1 to 4.
10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, the memory and the processor are communicatively connected, and the computer program when executed by the processor performs the compressor bias flow processing method according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111061000.9A CN113847684A (en) | 2021-09-10 | 2021-09-10 | Compressor bias current processing method and device, storage medium and electronic equipment |
Applications Claiming Priority (1)
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| CN116379658A (en) * | 2023-04-23 | 2023-07-04 | 珠海格力电器股份有限公司 | Dual-compressor control system, method and electric equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116379658A (en) * | 2023-04-23 | 2023-07-04 | 珠海格力电器股份有限公司 | Dual-compressor control system, method and electric equipment |
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