CN111397080B - Oil return control method under high-temperature sterilization, air conditioner and computer storage medium - Google Patents
Oil return control method under high-temperature sterilization, air conditioner and computer storage medium Download PDFInfo
- Publication number
- CN111397080B CN111397080B CN202010231143.9A CN202010231143A CN111397080B CN 111397080 B CN111397080 B CN 111397080B CN 202010231143 A CN202010231143 A CN 202010231143A CN 111397080 B CN111397080 B CN 111397080B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- oil return
- initial
- compressor
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
-
- 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
-
- 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
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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
- F24F2140/20—Heat-exchange fluid temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an oil return control method under high-temperature sterilization, which comprises the following steps: when the air conditioner is in a high-temperature sterilization mode, acquiring initial operation parameters of the air conditioner; controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner; and when the oil return operation is finished, restoring the air conditioner to the running state corresponding to the initial running parameter. The invention also discloses an air conditioner and a computer storage medium. According to the invention, through the combined adjustment of the rotating speed of the indoor fan, the running frequency of the compressor and/or the opening degree value of the expansion valve, the oil return control of high-temperature sterilization is realized, the phenomena of abrasion and overheating of the compressor are reduced, and the service life of the air conditioner is prolonged.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an oil return control method under high-temperature sterilization, an air conditioner and a computer storage medium.
Background
In the refrigeration cycle of the air conditioner, refrigerant is discharged through the compressor, passes through the condenser, the throttle mechanism, the evaporator, and the connecting line therebetween, and returns to the compressor.
In the operation process of the air conditioner, partial lubricating oil used for lubricating and cooling the compressor is discharged together with the refrigerant by the compressor and enters the evaporator, the condenser and the connecting pipeline, and during long-term low-frequency operation, the lubricating oil sprayed out along with the refrigerant is easy to be retained in the condenser, the evaporator and the system pipeline, so that the problem of oil shortage of the compressor is caused. In order to solve the problems, when the running time of the compressor in a low-frequency state is too long, the frequency of the compressor is increased, and the compressor is operated for a period of time to return oil. However, when the high-temperature sterilization function is operated, the temperature and the exhaust pressure of the evaporator of the compressor are already high, and the phenomenon that the temperature of the evaporator is too high, the exhaust pressure of the compressor is too high and the like can be caused by directly increasing the frequency of the compressor for oil return, so that the air conditioner cannot operate or is damaged.
Disclosure of Invention
The invention mainly aims to provide an oil return control method under high-temperature sterilization, an air conditioner and a computer storage medium, and aims to solve the technical problems that the air conditioner cannot run or is damaged due to the fact that the current oil return mode is unreasonable, the temperature of an evaporator is too high, the exhaust pressure of a compressor is too high and the like under the current high-temperature sterilization mode.
In order to achieve the above purpose, the present invention provides an oil return control method under high temperature sterilization, which comprises the following steps:
when the air conditioner is in a high-temperature sterilization mode, acquiring initial operation parameters of the air conditioner;
controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner;
and when the oil return operation is finished, restoring the air conditioner to the running state corresponding to the initial running parameter.
Optionally, after the step of acquiring the initial operating parameters of the air conditioner when the air conditioner is in the high temperature sterilization mode, the method includes:
extracting the initial operation frequency of the compressor in the initial operation parameters, and determining whether the compressor is in a low-frequency operation state according to the initial operation frequency;
when the compressor is in a low-frequency running state, acquiring the duration of the low-frequency running state;
and when the duration exceeds the preset duration, controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute an oil return operation according to the initial operating parameters of the air conditioner.
Optionally, the step of controlling and adjusting the rotation speed of the indoor fan, the operating frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operating parameter of the air conditioner includes:
extracting an initial opening value of the expansion valve in the initial operation parameters, and increasing the opening value of the expansion valve when the initial opening value is smaller than a preset opening value;
controlling the air conditioner to operate for a first preset time according to the increased opening value, and executing oil return operation;
detect in the first predetermined duration when the coil pipe temperature of evaporimeter is less than high temperature degerming minimum temperature value in the air conditioner, control reduces the rotational speed of indoor fan in the air conditioner, so that the coil pipe temperature is greater than high temperature degerming minimum temperature value and is less than high temperature degerming maximum temperature value.
Optionally, the step of controlling and adjusting the rotation speed of the indoor fan, the operating frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operating parameter of the air conditioner includes:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and controlling to increase the rotating speed of the indoor fan when the initial rotating speed is less than or equal to a preset rotating speed;
when the indoor fan operates the target cooling time according to the increased rotating speed, increasing the operating frequency of a compressor in the air conditioner to a target operating frequency;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
Optionally, the step of controlling and adjusting the rotation speed of the indoor fan, the operating frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operating parameter of the air conditioner includes:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and increasing the operating frequency of a compressor in the air conditioner to a target operating frequency when the initial rotating speed is greater than a preset rotating speed;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
Optionally, after the step of controlling and adjusting the rotation speed of the indoor fan, the operating frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operating parameter of the air conditioner, the method includes:
and controlling to increase the opening value of the expansion valve when the operation frequency of the compressor in the air conditioner is detected to be increased to the target operation frequency.
Optionally, after the step of controlling and adjusting the rotation speed of the indoor fan, the operating frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operating parameter of the air conditioner, the method includes:
and controlling to reduce the rotating speed of the outdoor fan when the operating frequency of the compressor in the air conditioner is detected to be increased to a target operating frequency.
Optionally, the step of restoring the air conditioner to the operation state corresponding to the initial operation parameter when the oil return operation is completed includes:
when the oil return operation is finished, extracting the initial rotating speed of the indoor fan, the initial operating frequency of the compressor and the initial opening value of the expansion valve in the initial operating parameters;
and adjusting the indoor fan to an initial rotating speed, adjusting the compressor to an initial operating frequency and/or adjusting the expansion valve to an initial opening value.
Further, to achieve the above object, the present invention also provides an air conditioner including: the oil return control method under high-temperature sterilization comprises a memory, a processor and an oil return control program under high-temperature sterilization, wherein the oil return control program under high-temperature sterilization is stored in the memory and can run on the processor, and when being executed by the processor, the steps of the oil return control method under high-temperature sterilization are realized.
In order to achieve the above object, the present invention further provides a computer-readable storage medium, on which an oil return control program under high-temperature sterilization is stored, and when being executed by a processor, the computer-readable storage medium implements the steps of the oil return control method under high-temperature sterilization.
The invention provides an oil return control method under high-temperature sterilization, an air conditioner and a computer storage medium, wherein in the embodiment of the invention, when the air conditioner is in a high-temperature sterilization mode, initial operation parameters of the air conditioner are obtained; controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner; and when the oil return operation is finished, restoring the air conditioner to the running state corresponding to the initial running parameter. In the embodiment of the invention, the oil return operation under high-temperature sterilization is realized by jointly controlling the different parts of the indoor fan, the compressor and the expansion valve in the air conditioner, the phenomena of overhigh temperature of the evaporator, overhigh exhaust pressure of the compressor and the like are effectively avoided, and the service life of the air conditioner is prolonged.
Drawings
FIG. 1 is a schematic diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an oil return control method under high-temperature sterilization according to a first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a hardware air conditioner according to an embodiment of the present invention.
As shown in fig. 1, the air conditioner may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the air conditioner configuration shown in fig. 1 does not constitute a limitation of the air conditioner, and that an actual air conditioner may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer storage medium, may include an operating system, a network communication module, a user interface module, and an oil return control program under high temperature sterilization.
In the air conditioner shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the oil return control program under high temperature sterilization stored in the memory 1005.
In the present embodiment, an air conditioner includes: the system comprises a memory 1005, a processor 1001 and an oil return control program under high-temperature sterilization, wherein the oil return control program under high-temperature sterilization is stored in the memory 1005 and can run on the processor 1001, and when the processor 1001 calls the oil return control program under high-temperature sterilization stored in the memory 1005, the following operations are performed:
when the air conditioner is in a high-temperature sterilization mode, acquiring initial operation parameters of the air conditioner;
controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner;
and when the oil return operation is finished, restoring the air conditioner to the running state corresponding to the initial running parameter.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and after the step of obtaining the initial operation parameters of the air conditioner when the air conditioner is in the high temperature sterilization mode, perform the following operations:
extracting the initial operation frequency of the compressor in the initial operation parameters, and determining whether the compressor is in a low-frequency operation state according to the initial operation frequency;
when the compressor is in a low-frequency running state, acquiring the duration of the low-frequency running state;
and when the duration exceeds the preset duration, controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute an oil return operation according to the initial operating parameters of the air conditioner.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and control and adjust the rotation speed of the indoor fan, the operation frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operation parameters of the air conditioner, and further perform the following operations:
extracting an initial opening value of the expansion valve in the initial operation parameters, and increasing the opening value of the expansion valve when the initial opening value is smaller than a preset opening value;
controlling the air conditioner to operate for a first preset time according to the increased opening value, and executing oil return operation;
detect in the first predetermined duration when the coil pipe temperature of evaporimeter is less than high temperature degerming minimum temperature value in the air conditioner, control reduces the rotational speed of indoor fan in the air conditioner, so that the coil pipe temperature is greater than high temperature degerming minimum temperature value and is less than high temperature degerming maximum temperature value.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and control and adjust the rotation speed of the indoor fan, the operation frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operation parameters of the air conditioner, and further perform the following operations:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and controlling to increase the rotating speed of the indoor fan when the initial rotating speed is less than or equal to a preset rotating speed;
when the indoor fan operates the target cooling time according to the increased rotating speed, increasing the operating frequency of a compressor in the air conditioner to a target operating frequency;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and control and adjust the rotation speed of the indoor fan, the operation frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform an oil return operation according to the initial operation parameters of the air conditioner, and further perform the following operations:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and increasing the operating frequency of a compressor in the air conditioner to a target operating frequency when the initial rotating speed is greater than a preset rotating speed;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and after the step of controlling and adjusting the rotation speed of the indoor fan, the operation frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform the oil return operation according to the initial operation parameters of the air conditioner, perform the following operations:
and controlling to increase the opening value of the expansion valve when the operation frequency of the compressor in the air conditioner is detected to be increased to the target operation frequency.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and after the step of controlling and adjusting the rotation speed of the indoor fan, the operation frequency of the compressor, and/or the opening value of the expansion valve in the air conditioner to perform the oil return operation according to the initial operation parameters of the air conditioner, perform the following operations:
and controlling to reduce the rotating speed of the outdoor fan when the operating frequency of the compressor in the air conditioner is detected to be increased to a target operating frequency.
Further, the processor 1001 may call an oil return control program under high temperature sterilization stored in the memory 1005, and when the oil return operation is completed, the step of restoring the air conditioner to the operation state corresponding to the initial operation parameter further performs the following operations:
when the oil return operation is finished, extracting the initial rotating speed of the indoor fan, the initial operating frequency of the compressor and the initial opening value of the expansion valve in the initial operating parameters;
and adjusting the indoor fan to an initial rotating speed, adjusting the compressor to an initial operating frequency and/or adjusting the expansion valve to an initial opening value.
The embodiment of the oil return control method under the high-temperature sterilization is provided based on the hardware structure.
Referring to fig. 2, fig. 2 is a schematic flow chart of an oil return control method under high temperature sterilization according to a first embodiment of the present invention.
In a first embodiment of the oil return control method under high-temperature sterilization, the oil return control method under high-temperature sterilization includes the following steps:
and step S10, when the air conditioner is in the high-temperature sterilization mode, acquiring initial operation parameters of the air conditioner.
The oil return control method under high-temperature sterilization in this embodiment is applied to an air conditioner, and the air conditioner may include a compressor, an expansion valve, an evaporator (also called as an indoor heat exchanger), an indoor fan, an outdoor fan, and the like. The expansion valve is a throttle control element and is mainly used for adjusting and controlling the flow of liquid flowing through the expansion valve of the air conditioning system to limit the flow.
When the air conditioner is in a high-temperature sterilization mode (the high-temperature sterilization mode refers to that the air conditioner is in heating operation, the temperature of the indoor heat exchanger is increased to be not lower than the sterilization temperature, namely, a refrigerant in the air conditioner is pressurized by a compressor to become high-temperature high-pressure gas and enters the indoor heat exchanger, the refrigerant is condensed, liquefied and released, and meanwhile, indoor air is heated, the temperature of the indoor heat exchanger is controlled, so that the purpose of high-temperature sterilization is achieved), initial operation parameters of the air conditioner are obtained, and the initial operation parameters include but are not limited to: an initial rotational speed of the indoor fan, an initial operating frequency of the compressor, and/or an initial opening value of the expansion valve.
Namely, when the air conditioner is in a high-temperature sterilization mode, the air conditioner is in a heating state, when the environmental temperature is higher, the temperature of the evaporator can be increased to a target temperature range required by high-temperature sterilization only with lower frequency, wherein the target temperature interval is determined by the high-temperature sterilization minimum temperature value and the high-temperature sterilization maximum temperature value, for example, the target temperature interval is [56.5 ℃, 58.5 ℃), the minimum temperature value for high-temperature sterilization is 56.5, the maximum temperature value for high-temperature sterilization is 58.5, the compressor has the phenomenon of long-time operation and low frequency in the high-temperature sterilization mode, when the running time of the compressor in the low-frequency state is too long, the phenomenon of oil shortage can occur, if the frequency of the compressor is directly increased, the compressor runs for a period of time to return oil, the problems that the temperature of the evaporator is too high, the exhaust pressure of the compressor is too high and the like can occur, so that the air conditioner cannot run in the protection mode or is damaged can be caused.
In order to avoid the problem caused by directly increasing the operating frequency of the compressor for oil return, in this embodiment, after the air conditioner obtains the initial operating parameter, the air conditioner controls the oil return operation according to the initial operating parameter, specifically:
and step S20, controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner.
The air conditioner controls and adjusts the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner according to the obtained initial operating parameters, and oil return operation is executed by performing combined control and adjustment on air conditioner components, specifically:
the implementation mode is as follows: keeping the operation frequency of the compressor unchanged, increasing the opening of the expansion valve to perform an oil return operation, for example, increasing the opening of the expansion valve, and continuously operating for a first preset time (the first preset time is 3 minutes) according to the adjusted opening of the expansion valve to perform the oil return operation; when the temperature of a coil of an evaporator in the air conditioner is detected to be lower than the high-temperature sterilization minimum temperature value within a first preset time period, the rotating speed of an indoor fan in the air conditioner is controlled to be reduced, so that the temperature of the coil is larger than the high-temperature sterilization minimum temperature value and smaller than the high-temperature sterilization maximum temperature value, for example, the temperature of the coil is smaller than 56.5 ℃, and the rotating speed of the indoor fan is reduced until the temperature of the coil is larger than 57.5 ℃. Wherein, increasing the opening of the expansion valve can be directly added to a certain threshold, and increasing the opening of the expansion valve can increase a certain numerical value or a certain multiple; the expansion valve opening can be calculated according to a target opening formula L ═ A × f0+ B, different target openings are adopted for different operation frequencies, wherein L is an opening value, A and B are constant coefficients, and f0 is a compressor operation frequency.
The implementation mode two is as follows: firstly increasing the rotating speed of an indoor fan in the air conditioner, and then increasing the operating frequency of a compressor in the air conditioner to execute oil return operation, for example, acquiring the rotating speed of the indoor fan in initial operating parameters, if the rotating speed of the indoor fan is low, during oil return, firstly increasing the rotating speed of the indoor fan (for example, increasing the rotating speed by 20% on the basis of the current rotating speed of the indoor fan), and after a certain time delay, the temperature of an evaporator in the air conditioner is slightly reduced, at the moment, the air conditioner controls the compressor to increase the operating frequency at the speed of 0.5Hz/s until the target operating frequency, and continuously operating the target operating frequency for a second preset time (for example, 2 minutes) to execute oil return operation; during the period, if the temperature of the coil of the evaporator in the air conditioner is greater than the maximum high-temperature sterilization temperature value, the rotating speed of the indoor fan is controlled to be increased (the rotating speed of the indoor fan does not exceed the maximum allowable rotating speed) so that the temperature of the coil is smaller than the maximum high-temperature sterilization temperature value and is greater than the minimum high-temperature sterilization temperature value.
The implementation mode is three: firstly, increasing the operating frequency of a compressor in the air conditioner, and then increasing the rotating speed of an indoor fan in the air conditioner to perform oil return operation, for example, controlling the air conditioner to increase the operating frequency of the compressor at a speed of 0.5Hz/s until the operating frequency of the compressor reaches a target operating frequency, and continuously operating the compressor at the target operating frequency for a second preset time (for example, for a second preset time, 2 minutes) to perform oil return operation; during the period, if the temperature of the coil of the evaporator in the air conditioner is greater than the maximum high-temperature sterilization temperature value, the rotating speed of the indoor fan is controlled to be increased (the rotating speed of the indoor fan does not exceed the maximum allowable rotating speed) so that the temperature of the coil is smaller than the maximum high-temperature sterilization temperature value and is greater than the minimum high-temperature sterilization temperature value.
It can be understood that, when the oil return operation is performed, the above several implementation manners may be combined, and in addition, oil return in a temperature division area may also be adopted, different environmental temperatures and different target operation frequencies are performed, and the higher the environmental temperature is, the lower the target operation frequency is. When the oil return action improves the running frequency of the compressor, the rotating speed of the outdoor fan can be reduced at the same time to reduce the evaporation temperature, the evaporation pressure and the heating capacity of the refrigerating system, so that the exhaust pressure is reduced, the temperature fluctuation of the evaporator is reduced, and the safety is improved.
And step S30, when the oil return operation is finished, restoring the air conditioner to the operation state corresponding to the initial operation parameters.
When the oil return operation is finished, the air conditioner is restored to the running state corresponding to the initial running parameters; specifically, the method comprises the following steps:
step a1, when the oil return operation is finished, extracting the initial rotating speed of the indoor fan, the initial operating frequency of the compressor and the initial opening value of the expansion valve in the initial operating parameters;
step a2, adjusting the indoor fan to an initial rotation speed, the compressor to an initial operation frequency and/or the expansion valve to an initial opening value.
After adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation setting time (the setting time can be flexibly set according to the operating frequency value of the compressor, the opening value of the expansion valve and the like), the air conditioner judges that the oil return operation is executed, and when the oil return operation is executed, the air conditioner extracts the initial rotating speed of the indoor fan, the initial operating frequency of the compressor and the initial opening value of the expansion valve in initial operating parameters; the air conditioner adjusts the indoor fan to an initial rotating speed, the compressor to an initial operating frequency and/or the expansion valve to an initial opening value, wherein the specific steps of the air conditioner to restore to the operating state corresponding to the initial operating parameters are not limited, for example, the air conditioner reduces the operating frequency of the compressor at the speed of 1Hz/s and returns to the initial operating frequency before oil return.
According to the air conditioner in the embodiment, the air conditioner controls and adjusts the rotating speed of the indoor fan, the operating frequency of the compressor and/or the opening value of the expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner, and the oil return operation under high-temperature sterilization is realized by jointly controlling the indoor fan, the compressor and the expansion valve in the air conditioner, meanwhile, the phenomena of overhigh temperature of the evaporator, overhigh pressure of the exhaust of the compressor and the like are effectively avoided, and the service life of the air conditioner is prolonged.
On the basis of the above embodiments of the present invention, a second embodiment of the oil return control method under high temperature sterilization according to the present invention is provided.
This embodiment is a step after step S10 in the first embodiment, and is different from the above-described embodiments in that:
extracting the initial operation frequency of the compressor in the initial operation parameters, and determining whether the compressor is in a low-frequency operation state according to the initial operation frequency;
when the compressor is in a low-frequency running state, acquiring the duration of the low-frequency running state;
and when the duration exceeds the preset duration, controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute an oil return operation according to the initial operating parameters of the air conditioner.
The air conditioner extracts the initial operation frequency of the compressor in the initial operation parameters, and determines whether the compressor is in a low-frequency operation state or not according to the initial operation frequency; that is, the air conditioner determines whether the initial operating frequency is less than a preset frequency value (the preset frequency value can be flexibly set according to the operating condition of the compressor), if the initial operating frequency of the air conditioner is less than the preset frequency value, the compressor is determined to be in a low-frequency operating state, and when the compressor is not in the low-frequency operating state, the compressor is not easy to have an oil shortage phenomenon, so that an oil return operation is not needed; if the initial operating frequency of the air conditioner is greater than or equal to the preset frequency value, the compressor is judged not to be in a low-frequency operating state, the compressor is easy to lack oil, and oil return operation is needed.
When the compressor is in a low-frequency running state, the air conditioner acquires the duration of the low-frequency running state; the air conditioner compares the duration time exceeding the preset duration time (the preset duration time can be flexibly set according to the scene of oil shortage of the compressor, namely the preset duration time is shorter when the oil shortage is serious, and the preset duration time is longer when the oil shortage is serious), and the oil shortage is less and the oil return operation is not needed when the duration time does not exceed the preset duration time. When the duration exceeds the preset duration, step S20 in the first embodiment is executed: and controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner.
When confirming that the air conditioner is in the high temperature degerming mode in this embodiment, the running state of compressor in the air conditioner is monitored, confirm whether long-time low frequency operation appears in the compressor, if the long-term low frequency operation of air conditioner, just refrigerant spun lubricating oil can appear, lubricating oil is detained in condenser, evaporimeter and system's pipeline, cause the problem of compressor starvation, then the air conditioner carries out the oil return operation, in this embodiment through monitoring the running state of compressor, avoid appearing frequent oil return operation, reduce the unnecessary operation of air conditioner, thereby protect the air conditioner.
On the basis of the above embodiments of the present invention, a third embodiment of the oil return control method under high temperature sterilization according to the present invention is provided.
This embodiment is a refinement of step S20 in the first embodiment, and is different from the above embodiments in that:
extracting an initial opening value of the expansion valve in the initial operation parameters, and increasing the opening value of the expansion valve when the initial opening value is smaller than a preset opening value;
controlling the air conditioner to operate for a first preset time according to the increased opening value, and executing oil return operation;
detect in the first predetermined duration when the coil pipe temperature of evaporimeter is less than high temperature degerming minimum temperature value in the air conditioner, control reduces the rotational speed of indoor fan in the air conditioner, so that the coil pipe temperature is greater than high temperature degerming minimum temperature value and is less than high temperature degerming maximum temperature value.
The air conditioner extracts an initial opening value of the expansion valve in initial operation parameters, compares the initial opening value with a preset opening value (the preset opening value can be flexibly set according to specific scenes), and when the initial opening value is larger than or equal to the preset opening value, indicates that the flow limitation of the refrigerant is not serious, directly increases the opening value of the expansion valve, and cannot play a good oil return effect, and at the moment, the operation frequency of the compressor needs to be increased; when the initial opening value is smaller than the preset opening value, the air conditioner increases the opening value of the expansion valve and controls the air conditioner to operate for a first preset time according to the increased opening value (the first preset time may be set according to a specific scene, for example, the first preset time is set to 3 minutes), and the oil return operation is executed.
In the process of executing the oil return operation, the air conditioner detects the temperature of a coil of the evaporator, and if the temperature of the coil of the evaporator in the air conditioner is detected to be lower than the high-temperature sterilization minimum temperature value within a first preset time period, the rotating speed of an indoor fan in the air conditioner is controlled to be reduced so that the temperature of the coil is higher than the high-temperature sterilization minimum temperature value and lower than the high-temperature sterilization maximum temperature value.
In this embodiment, the air conditioner realizes the oil return operation through increasing the expansion valve opening, has avoided the evaporimeter high temperature effectively, the appearance of phenomenon such as compressor exhaust pressure is too high, reduce the problem that the air conditioner damaged in the oil return process, simultaneously because the expansion valve opening increases, probably make evaporation formula coil pipe temperature reduce, this moment, through the rotational speed that reduces indoor fan, guarantee that the coil pipe temperature is greater than high temperature degerming minimum temperature value and is less than high temperature degerming maximum temperature value, realize good degerming effect.
On the basis of the above embodiments of the present invention, a fourth embodiment of the oil return control method under high temperature sterilization according to the present invention is provided.
This embodiment is a refinement of step S20 in the first embodiment, and is different from the above embodiments in that:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and controlling to increase the rotating speed of the indoor fan when the initial rotating speed is less than or equal to a preset rotating speed;
when the indoor fan operates the target cooling time according to the increased rotating speed, increasing the operating frequency of a compressor in the air conditioner to a target operating frequency;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
Extracting the initial rotating speed of the indoor fan in the initial operating parameters by the air conditioner, and comparing the initial rotating speed with a preset rotating speed (the preset rotating speed is not the maximum rotating speed allowed to be used by the indoor fan and refers to the preset rotating speed with allowance, for example, the preset rotating speed is 80% of the maximum rotating speed allowed to be used by the indoor fan); when the initial rotating speed is less than or equal to the preset rotating speed, the adjustable space of the indoor fan is larger, and the air conditioner controls the rotating speed of the indoor fan to be increased firstly; when the indoor fan operates the target cooling time according to the increased rotating speed, increasing the operating frequency of a compressor in the air conditioner to the target operating frequency; controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation; when detecting that the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner during second is preset for a long time, the rotational speed of increasing indoor fan is controlled once more to make the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
The air conditioner extracts the initial rotating speed of the indoor fan in the initial operating parameters, when the initial rotating speed is less than or equal to the preset rotating speed, the rotating speed of the indoor fan is increased firstly, then the operating frequency of the compressor is increased, oil return operation is carried out through combined control, and the safety of oil return control is effectively improved.
On the basis of the above embodiments of the present invention, a fifth embodiment of the oil return control method under high temperature sterilization according to the present invention is provided.
This embodiment is a refinement of step S20 in the first embodiment, and is different from the above embodiments in that:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and increasing the operating frequency of a compressor in the air conditioner to a target operating frequency when the initial rotating speed is greater than a preset rotating speed;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
The air conditioner extracts the initial rotating speed of the indoor fan in the initial operating parameters, compares the initial rotating speed with a preset rotating speed (the preset rotating speed is not the maximum rotating speed allowed to be used by the indoor fan and refers to the preset rotating speed with allowance, for example, the preset rotating speed is 80% of the maximum rotating speed allowed to be used by the indoor fan), and when the initial rotating speed is greater than the preset rotating speed, the air conditioner increases the operating frequency of the compressor to a target operating frequency; and controlling the compressor to operate for a second preset time length according to the target operation frequency (the second preset time length can be set according to a specific scene, for example, the second preset time length is set to be 2 minutes), and executing the oil return operation.
During a second preset time period when the compressor runs according to the target frequency, the air conditioner detects the temperature of the coil of the evaporator, and if the temperature of the coil of the evaporator in the air conditioner is detected to be higher than the maximum high-temperature sterilization temperature value within the second preset time period, the rotating speed of the indoor fan is controlled to be increased (the rotating speed of the indoor fan is still lower than the maximum rotating speed allowed to be used by the indoor fan after being increased) so that the temperature of the coil is lower than the maximum high-temperature sterilization temperature value and higher than the minimum high-temperature sterilization temperature value.
The operating frequency of compressor is increased to the target operating frequency to the air conditioner in this embodiment, may lead to the coil pipe temperature of evaporimeter to be greater than the maximum temperature value of high temperature degerming, in order to avoid because the too high emergence of the phenomenon that high temperature protection air conditioner interrupted the operation of appearing of evaporimeter coil pipe temperature, the coil pipe temperature of air conditioner detection evaporimeter, when the coil pipe temperature is greater than the maximum temperature value of high temperature degerming, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than the maximum temperature value of high temperature degerming and is greater than the minimum temperature value of high. The air conditioner extracts the initial rotating speed of the indoor fan in the initial operating parameters, when the initial rotating speed is greater than the preset rotating speed, the operating frequency of the compressor is increased firstly, then the rotating speed of the indoor fan is increased, oil return operation is performed through combined control, high-temperature sterilization and effective oil return are guaranteed, and meanwhile the parts of the air conditioner are not damaged.
In addition to the fourth embodiment and the fifth embodiment of the present invention, a sixth embodiment of the oil return control method under high temperature sterilization according to the present invention is provided.
The present embodiment differs from the above embodiments in that:
and controlling to increase the opening value of the expansion valve when the operation frequency of the compressor in the air conditioner is detected to be increased to the target operation frequency.
In this embodiment, when it is detected that the operating frequency of the compressor in the air conditioner is increased to the target operating frequency, the opening degree value of the expansion valve is controlled to be increased, that is, for the air conditioner adopting the expansion valve in this embodiment, when the operating frequency of the compressor is increased by the oil return operation, the opening degree of the expansion valve can be simultaneously increased, so that the exhaust pressure is reduced, the temperature fluctuation of the evaporator is reduced, and the safety of the oil return operation is ensured.
On the basis of the fourth embodiment and the fifth embodiment of the present invention, a seventh embodiment of the oil return control method under high temperature sterilization according to the present invention is provided.
The present embodiment differs from the above embodiments in that:
and controlling to reduce the rotating speed of the outdoor fan when the operating frequency of the compressor in the air conditioner is detected to be increased to a target operating frequency.
In this embodiment, when it is detected that the operating frequency of the compressor in the air conditioner is increased to the target operating frequency, the rotating speed of the outdoor fan is controlled to be reduced, that is, when the operating frequency of the compressor is increased by the oil return operation of the air conditioner, the rotating speed of the outdoor fan is reduced at the same time, so as to reduce the evaporation temperature, the evaporation pressure and the heating capacity of the refrigeration system, thereby reducing the exhaust pressure, reducing the temperature fluctuation of the evaporator, and ensuring the safety of the oil return operation.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where an oil return control program under high temperature sterilization is stored on the computer-readable storage medium, and when the oil return control program under high temperature sterilization is executed by a processor, the steps of the oil return control method under high temperature sterilization as described in any one of the above are implemented.
In the operation of the computer readable storage medium in the embodiment, the oil return operation under high-temperature sterilization is realized by jointly controlling different parts, namely the indoor fan, the compressor and the expansion valve, in the air conditioner, and meanwhile, the phenomena of overhigh temperature of the evaporator, overhigh exhaust pressure of the compressor and the like are effectively avoided, and the service life of the air conditioner is prolonged.
The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the oil return control method under the high temperature sterilization, and will not be described in detail herein.
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 system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The oil return control method under the high-temperature sterilization is characterized by comprising the following steps of:
when the air conditioner is in a high-temperature sterilization mode, acquiring initial operation parameters of the air conditioner;
controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to the initial operating parameters of the air conditioner;
when the oil return operation is finished, the air conditioner is restored to the running state corresponding to the initial running parameters;
the method comprises the following steps of controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute oil return operation according to initial operating parameters of the air conditioner, wherein the steps comprise:
extracting an initial opening value of the expansion valve in the initial operation parameters, and increasing the opening value of the expansion valve when the initial opening value is smaller than a preset opening value;
controlling the air conditioner to operate for a first preset time according to the increased opening value, and executing oil return operation;
detect in the first predetermined duration when the coil pipe temperature of evaporimeter is less than high temperature degerming minimum temperature value in the air conditioner, control reduces the rotational speed of indoor fan in the air conditioner, so that the coil pipe temperature is greater than high temperature degerming minimum temperature value and is less than high temperature degerming maximum temperature value.
2. The oil return control method under high temperature sterilization according to claim 1, wherein after the step of obtaining the initial operation parameters of the air conditioner when the air conditioner is in the high temperature sterilization mode, the method comprises:
extracting the initial operation frequency of the compressor in the initial operation parameters, and determining whether the compressor is in a low-frequency operation state according to the initial operation frequency;
when the compressor is in a low-frequency running state, acquiring the duration of the low-frequency running state;
and when the duration exceeds the preset duration, controlling and adjusting the rotating speed of an indoor fan, the operating frequency of a compressor and/or the opening value of an expansion valve in the air conditioner to execute an oil return operation according to the initial operating parameters of the air conditioner.
3. The oil return control method under high temperature sterilization according to claim 1, wherein the step of performing the oil return operation by controlling and adjusting the rotation speed of the indoor fan, the operation frequency of the compressor and/or the opening value of the expansion valve in the air conditioner according to the initial operation parameters of the air conditioner comprises:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and controlling to increase the rotating speed of the indoor fan when the initial rotating speed is less than or equal to a preset rotating speed;
when the indoor fan operates the target cooling time according to the increased rotating speed, increasing the operating frequency of a compressor in the air conditioner to a target operating frequency;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
4. The oil return control method under high temperature sterilization according to claim 1, wherein the step of performing the oil return operation by controlling and adjusting the rotation speed of the indoor fan, the operation frequency of the compressor and/or the opening value of the expansion valve in the air conditioner according to the initial operation parameters of the air conditioner comprises:
extracting the initial rotating speed of the indoor fan in the initial operating parameters, and increasing the operating frequency of a compressor in the air conditioner to a target operating frequency when the initial rotating speed is greater than a preset rotating speed;
controlling the compressor to run for a second preset time according to the target running frequency, and executing oil return operation;
detect in the second is preset for a long time when the coil pipe temperature of evaporimeter is greater than high temperature degerming maximum temperature value in the air conditioner, the control increases the rotational speed of indoor fan, so that the coil pipe temperature is less than high temperature degerming maximum temperature value and is greater than high temperature degerming minimum temperature value.
5. The oil return control method under high temperature sterilization according to claim 3 or 4, wherein after the step of performing the oil return operation by controlling and adjusting the rotation speed of the indoor fan, the operation frequency of the compressor and/or the opening degree value of the expansion valve in the air conditioner according to the initial operation parameters of the air conditioner, the method comprises:
and controlling to increase the opening value of the expansion valve when the operation frequency of the compressor in the air conditioner is detected to be increased to the target operation frequency.
6. The oil return control method under high temperature sterilization according to claim 1, wherein after the step of performing the oil return operation by controlling and adjusting the rotation speed of the indoor fan, the operation frequency of the compressor and/or the opening value of the expansion valve in the air conditioner according to the initial operation parameters of the air conditioner, the method comprises:
and controlling to reduce the rotating speed of the outdoor fan when the operating frequency of the compressor in the air conditioner is detected to be increased to a target operating frequency.
7. The oil return control method under high temperature sterilization according to any one of claims 1 to 4 or claim 6, wherein the step of returning the air conditioner to the operation state corresponding to the initial operation parameter when the oil return operation is completed comprises:
when the oil return operation is finished, extracting the initial rotating speed of the indoor fan, the initial operating frequency of the compressor and the initial opening value of the expansion valve in the initial operating parameters;
and adjusting the indoor fan to an initial rotating speed, adjusting the compressor to an initial operating frequency and/or adjusting the expansion valve to an initial opening value.
8. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor and an oil return control program under high temperature sterilization stored on the memory and operable on the processor, the oil return control program under high temperature sterilization, when executed by the processor, implementing the steps of the oil return control method under high temperature sterilization according to any one of claims 1 to 7.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon an oil return control program under high temperature sterilization, and when the oil return control program under high temperature sterilization is executed by a processor, the steps of the oil return control method under high temperature sterilization according to any one of claims 1 to 7 are implemented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010231143.9A CN111397080B (en) | 2020-03-27 | 2020-03-27 | Oil return control method under high-temperature sterilization, air conditioner and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010231143.9A CN111397080B (en) | 2020-03-27 | 2020-03-27 | Oil return control method under high-temperature sterilization, air conditioner and computer storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111397080A CN111397080A (en) | 2020-07-10 |
| CN111397080B true CN111397080B (en) | 2021-07-16 |
Family
ID=71436694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010231143.9A Active CN111397080B (en) | 2020-03-27 | 2020-03-27 | Oil return control method under high-temperature sterilization, air conditioner and computer storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111397080B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021210048A1 (en) | 2021-09-10 | 2023-03-16 | BSH Hausgeräte GmbH | Operating a speed-controlled compressor of a household refrigeration appliance |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902503B (en) * | 2021-02-03 | 2022-11-29 | 四川长虹空调有限公司 | Variable frequency multi-split air conditioner heating oil return control method |
| CN115540178B (en) * | 2022-08-18 | 2024-05-24 | 青岛海尔空调器有限总公司 | Air conditioner control method and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664470A (en) * | 2004-03-05 | 2005-09-07 | 三菱电机株式会社 | Air conditioning apparatus |
| CN101187517A (en) * | 2006-11-17 | 2008-05-28 | 海尔集团公司 | Air-conditioner defrosting method |
| CN101191686A (en) * | 2006-11-30 | 2008-06-04 | 海尔集团公司 | Air conditioner for implementing high and low pressure side pressure balancing |
| KR101407513B1 (en) * | 2007-11-13 | 2014-06-17 | 재단법인 포항산업과학연구원 | Oil separator |
| CN105371531A (en) * | 2015-11-30 | 2016-03-02 | 珠海格力电器股份有限公司 | Low-frequency oil return control method and system of air conditioner |
| WO2016174750A1 (en) * | 2015-04-28 | 2016-11-03 | 三菱電機株式会社 | Air-conditioning device |
| CN110341429A (en) * | 2019-07-30 | 2019-10-18 | 青岛海立电机有限公司 | The method for controlling oil return of Air conditioner on car |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100520208C (en) * | 2006-07-12 | 2009-07-29 | 松下电器产业株式会社 | Multi-room type air-conditioning device |
-
2020
- 2020-03-27 CN CN202010231143.9A patent/CN111397080B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664470A (en) * | 2004-03-05 | 2005-09-07 | 三菱电机株式会社 | Air conditioning apparatus |
| CN101187517A (en) * | 2006-11-17 | 2008-05-28 | 海尔集团公司 | Air-conditioner defrosting method |
| CN101191686A (en) * | 2006-11-30 | 2008-06-04 | 海尔集团公司 | Air conditioner for implementing high and low pressure side pressure balancing |
| KR101407513B1 (en) * | 2007-11-13 | 2014-06-17 | 재단법인 포항산업과학연구원 | Oil separator |
| WO2016174750A1 (en) * | 2015-04-28 | 2016-11-03 | 三菱電機株式会社 | Air-conditioning device |
| CN105371531A (en) * | 2015-11-30 | 2016-03-02 | 珠海格力电器股份有限公司 | Low-frequency oil return control method and system of air conditioner |
| CN110341429A (en) * | 2019-07-30 | 2019-10-18 | 青岛海立电机有限公司 | The method for controlling oil return of Air conditioner on car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021210048A1 (en) | 2021-09-10 | 2023-03-16 | BSH Hausgeräte GmbH | Operating a speed-controlled compressor of a household refrigeration appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111397080A (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111397080B (en) | Oil return control method under high-temperature sterilization, air conditioner and computer storage medium | |
| CN109506328B (en) | Control method of air conditioner electronic expansion valve and air conditioner | |
| CN108344115B (en) | Control method of air cooling unit, air cooling unit and storage medium | |
| CN110057060B (en) | Control method for frequency adjustment of air conditioner compressor and air conditioner | |
| CN108168028B (en) | Method for refrigerating and defrosting of mobile air conditioner, mobile air conditioner and storage medium | |
| CN107084473B (en) | Compressor control method and device | |
| CN111023515B (en) | Air conditioner, refrigeration control method of air conditioner and storage medium | |
| CN110030707B (en) | Air conditioning system adjusting method, air conditioner and computer readable storage medium | |
| CN108444140B (en) | Air conditioner, method of controlling the same, and computer-readable storage medium | |
| CN111023455B (en) | Defrosting control method, defrosting control device, air conditioner and readable storage medium | |
| CN106352632B (en) | Air conditioning system and heating control method thereof | |
| CN112815471A (en) | Air conditioner self-cleaning control method and device, air conditioner and storage medium | |
| WO2020034731A1 (en) | Oil return control method for air conditioner, air conditioner and computer-readable storage medium | |
| CN106895623B (en) | Exhaust temperature control method of air conditioner | |
| CN105805976A (en) | Air conditioner operation control method and device | |
| CN112963934A (en) | Air conditioner control method and device, air conditioner and storage medium | |
| CN113465101B (en) | Air conditioner starting control method and device and air conditioner | |
| CN113739345A (en) | Oil return control method, device, equipment and storage medium | |
| CN114440414A (en) | Multi-split air conditioner, control method thereof and computer storage medium | |
| US12066225B2 (en) | Method and device for controlling pressure of units with height drop, and air conditioner device | |
| CN111981649B (en) | Air conditioner, air conditioner control method, control device and readable storage medium | |
| CN111397094A (en) | Cleaning method for indoor heat exchanger of air conditioner, air conditioner and computer storage medium | |
| CN108377628B (en) | Control method and device for cooling fan of water chilling unit electric control cabinet | |
| CN113669856B (en) | Air conditioner sterilization method, air conditioner and computer readable storage medium | |
| CN114992794A (en) | Air conditioner, air conditioner control method thereof and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |