CN113218043A - Air conditioner control method and device, air conditioner and storage medium - Google Patents
Air conditioner control method and device, air conditioner and storage medium Download PDFInfo
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- CN113218043A CN113218043A CN202110478923.8A CN202110478923A CN113218043A CN 113218043 A CN113218043 A CN 113218043A CN 202110478923 A CN202110478923 A CN 202110478923A CN 113218043 A CN113218043 A CN 113218043A
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- 238000004378 air conditioning Methods 0.000 claims description 23
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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
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The application provides an air conditioner control method, an air conditioner control device, an air conditioner and a storage medium, wherein the air conditioner comprises a four-way valve and a gas-liquid separator, a hot gas bypass electromagnetic valve is arranged between a high-pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, the running mode of the air conditioner comprises a defrosting mode and a heating mode, and the method comprises the following steps: when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner; determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature; determining whether the air conditioner meets the preset condition of closing a hot gas bypass electromagnetic valve or not according to the exhaust superheat degree; and if so, sending a command for closing the hot gas bypass electromagnetic valve. By adopting the air conditioner control method provided by the application, after low-temperature heating defrosting is finished, the exhaust superheat degree of the compressor is rapidly increased, and the service life of the compressor is prolonged.
Description
Technical Field
The application mainly relates to the technical field of air conditioners, in particular to an air conditioner control method and device, an air conditioner and a storage medium.
Background
With the rapid development and continuous progress of air conditioning technology, the air conditioning industry is upgraded for many times, and the requirement on the reliability of the air conditioner is higher and higher.
The multi-split air conditioner is a type of user air conditioner, commonly called as 'one split multiple', and refers to a primary refrigerant air conditioning system in which an outdoor unit is connected with two or more indoor units through a pipe, an outdoor side adopts an air cooling heat exchange mode, and an indoor side adopts a direct evaporation heat exchange mode. The multi-split system is widely applied to small and medium-sized buildings and part of public buildings at present.
For the multi-split air conditioner, the reliability of the compressor is an important component of the reliability of the whole system. On the aspect of improving the reliability of the compressor, particularly after the low-temperature heating defrosting of the multi-split air conditioner is finished, the problems of liquid return and wet compression of the compressor in a short time are caused due to the fact that the exhaust superheat degree of the compressor is insufficient for a long time in the scheme provided by the prior art, abnormal abrasion in the compressor is accelerated, and therefore the service life of the compressor is influenced.
Disclosure of Invention
The application provides an air conditioner control method, an air conditioner control device, an air conditioner and a storage medium, after low-temperature heating defrosting is finished, the exhaust superheat degree of a compressor is enabled to be rapidly increased, and the service life of the compressor is prolonged.
In a first aspect, the present application provides a method for controlling an air conditioner, the air conditioner includes a four-way valve and a gas-liquid separator, a hot gas bypass solenoid valve is disposed between a high-pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, an operation mode of the air conditioner includes a defrosting mode and a heating mode, and the method includes:
when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner;
determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature;
determining whether the air conditioner meets the preset condition of closing a hot gas bypass electromagnetic valve or not according to the exhaust superheat degree;
and if so, sending a command for closing the hot gas bypass electromagnetic valve.
In some embodiments of the present application, the sending a command to open the hot gas bypass solenoid valve when the air conditioner finishes the defrosting mode and enters the heating mode includes:
acquiring a first control instruction for entering the heating mode;
acquiring a current operation mode of the air conditioner according to the first control instruction;
and if the current operation mode is the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
In some embodiments of the present application, the method further comprises:
acquiring a second control instruction for finishing the defrosting mode;
and sending an instruction for opening the four-way valve according to the second control instruction.
In some embodiments of the present application, the determining the degree of superheat of the exhaust gas of the air conditioner based on the capping temperature and the saturation temperature includes:
subtracting the capping temperature and the saturation temperature to obtain a difference value between the capping temperature and the saturation temperature;
and determining the exhaust superheat degree of the air conditioner according to the difference value.
In some embodiments of the present application, the preset conditions for closing the hot gas bypass solenoid valve include an exhaust superheat correction condition and a hot gas bypass solenoid valve opening time condition, and the determining whether the air conditioner satisfies the preset conditions for closing the hot gas bypass solenoid valve according to the exhaust superheat includes:
and determining whether the air conditioner simultaneously meets the exhaust superheat correction condition and the opening time condition of the hot gas bypass electromagnetic valve according to the exhaust superheat.
In some embodiments of the present application, the exhaust superheat correction condition is that the exhaust superheat is greater than or equal to a preset correction value, and the preset correction value is a product of a preset exhaust superheat correction coefficient and a preset factory exhaust superheat.
In some embodiments of the present application, the opening time condition of the hot gas bypass solenoid valve is that the opening time of the hot gas bypass solenoid valve is greater than or equal to a preset opening time of the hot gas bypass solenoid valve.
In a second aspect, the present application provides an air conditioner control device, including cross valve and gas-liquid separator in the air conditioner the high-pressure inlet pipe of cross valve with set up the steam bypass solenoid valve between the gas-liquid separator import, the mode of operation of air conditioner includes defrosting mode and heating mode, the device includes:
the detection unit is used for sending an instruction for opening the hot gas bypass electromagnetic valve when the air conditioner finishes the defrosting mode and enters the heating mode, and detecting the top pressing temperature and the saturation temperature of the air conditioner;
a first determination unit for determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature;
the second determining unit is used for determining whether the air conditioner meets the preset condition of closing the hot gas bypass electromagnetic valve or not according to the exhaust superheat degree;
and the sending unit is used for sending a command for closing the hot gas bypass electromagnetic valve.
In some embodiments of the present application, the detection unit is specifically configured to:
acquiring a first control instruction for entering the heating mode;
acquiring a current operation mode of the air conditioner according to the first control instruction;
and if the current operation mode is the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
In some embodiments of the present application, the detection unit is specifically configured to:
acquiring a second control instruction for finishing the defrosting mode;
and sending an instruction for opening the four-way valve according to the second control instruction.
In some embodiments of the present application, the first determining unit is specifically configured to:
subtracting the capping temperature and the saturation temperature to obtain a difference value between the capping temperature and the saturation temperature;
and determining the exhaust superheat degree of the air conditioner according to the difference value.
In some embodiments of the present application, the preset conditions for closing the hot gas bypass solenoid valve include an exhaust superheat correction condition and a hot gas bypass solenoid valve opening time condition, and the second determining unit is specifically configured to:
and determining whether the air conditioner simultaneously meets the exhaust superheat correction condition and the opening time condition of the hot gas bypass electromagnetic valve according to the exhaust superheat.
In a third aspect, the present application provides an air conditioner, the air conditioner includes a four-way valve and a gas-liquid separator therein, a hot gas bypass solenoid valve is disposed between a high-pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, and the air conditioner further includes:
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioning control method of any of the first aspects.
In a fourth aspect, the present application provides a computer-readable storage medium, wherein a computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the air conditioner control method according to any one of the first aspect.
The application provides an air conditioner control method, device, air conditioner and storage medium, the air conditioner is including heating the mode and defrosting the mode, including cross valve and vapour and liquid separator in the air conditioner the high pressure inlet tube of cross valve with set up steam bypass solenoid valve between the vapour and liquid separator import, through heating the defrosting end at air conditioner low temperature and accomplish promptly the air conditioner and finish defrosting the mode and get into the mode of heating, open steam bypass solenoid valve to according to the capping temperature of air conditioner and saturation temperature calculate the exhaust superheat degree of air conditioner, confirm according to the exhaust superheat degree whether the air conditioner satisfies the predetermined hot bypass solenoid valve condition of closing, if satisfy then close the hot bypass solenoid valve to solve the defect that the air conditioner compressor returns liquid and wet compression in the short time after the defrosting is finished to low temperature heating, promote air conditioner compressor's life, thereby enhancing the reliability of the whole air conditioner.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a scene of an air conditioner control system provided in an embodiment of the present application;
FIG. 2 is a system diagram of an air conditioning control system according to an embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating an embodiment of an air conditioning control method provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an embodiment of an air conditioning control device provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of an embodiment of an air conditioner provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Embodiments of the present application provide an air conditioner control method and apparatus, an air conditioner, and a storage medium, which are described in detail below.
Referring to fig. 1, fig. 1 is a schematic view of a scenario of an air conditioning control system according to an embodiment of the present application, where the air conditioning control system may include an air conditioner 100 and a terminal 200, the air conditioner 100 is in communication connection with the terminal 200, and the terminal 200 is integrated with an air conditioning control device.
In this embodiment, the terminal 200 may be an independent server, or may be a server network or a server cluster composed of servers, for example, the terminal 200 described in this embodiment includes, but is not limited to, a computer, a network host, a single network server, a plurality of network server sets, or a cloud server composed of a plurality of servers. Among them, the Cloud server is constituted by a large number of computers or web servers based on Cloud Computing (Cloud Computing).
In the embodiment of the present application, the air conditioner 100 and the terminal 200 may implement communication through any communication manner, including but not limited to mobile communication based on the third Generation Partnership Project (3 GPP), Long Term Evolution (LTE), Worldwide Interoperability for Microwave Access (WiMAX), or computer network communication based on the TCP/IP Protocol Suite (TCP/IP), User Datagram Protocol (UDP), and the like.
In this embodiment, the terminal 200 may be a general-purpose computer device or a special-purpose computer device. In a specific implementation, the terminal 200 may be a desktop, a laptop, a web server, a Personal Digital Assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, and the like, and the type of the terminal 200 is not limited in this embodiment.
Those skilled in the art will understand that the application environment shown in fig. 1 is only one application scenario related to the present invention, and does not constitute a limitation on the application scenario related to the present invention, and that other application environments may further include more or fewer terminals than those shown in fig. 1, for example, only 1 terminal is shown in fig. 1, and it is understood that the air conditioner control system may further include one or more other terminals connected to the air conditioner 100, and is not limited herein.
In addition, as shown in fig. 1, the air conditioning control system may further include a memory 300 for storing data, such as program data of control instructions transmitted by the terminal 200, and preset parameters and the like.
It should be noted that the scenario diagram of the air conditioning control system shown in fig. 1 is only an example, and the air conditioning control system and the scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application.
As shown in fig. 2, the air-conditioning control system provided in the embodiment of the present application is a system schematic diagram, and the air-conditioning control system includes a compressor, a compressor capping thermal bulb, a capping temperature sensor (not shown), a master control timer (not shown), an oil separator, an oil return capillary tube, a high-pressure sensor, a four-way valve, a hot gas bypass solenoid valve, an outdoor heat exchanger, a fan, a heat exchanger middle thermal bulb, a throttling device, a gas-liquid separator, an indoor unit, a low-pressure air return pipe (not shown), a high-pressure stop valve, a low-pressure stop valve, and the like.
The inlet of the hot gas bypass solenoid valve is connected with the high-pressure inlet pipe of the four-way valve, and the outlet of the hot gas bypass solenoid valve is connected with the inlet of the gas-liquid separator; when the air conditioner finishes the defrosting mode and enters the heating mode, the hot gas bypass electromagnetic valve is in an opening state, so that high-temperature and high-pressure gaseous refrigerant is supplemented to the low-pressure gas return pipe, is mixed with low-temperature gas-liquid two-phase refrigerant of the low-pressure gas return pipe and is lifted to be normal-temperature gaseous refrigerant, and then returns to the compressor for compression.
First, an embodiment of the present application provides a method for controlling an air conditioner, where the air conditioner includes a four-way valve and a gas-liquid separator, a hot gas bypass solenoid valve is disposed between a high-pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, an operation mode of the air conditioner includes a defrosting mode and a heating mode, and the method includes: when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner; determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature; determining whether the air conditioner meets the preset condition of closing a hot gas bypass electromagnetic valve or not according to the exhaust superheat degree; and if so, sending a command for closing the hot gas bypass electromagnetic valve.
It is understood that the operation mode of the air conditioner is not limited to the defrosting mode and the heating mode provided in the embodiments of the present application, and further, various other modes, such as a cooling mode, a dehumidifying mode, a ventilating mode, or a sleeping mode, may be included in other embodiments of the present application, and are not limited herein.
As shown in fig. 3, which is a schematic flow chart of an embodiment of an air conditioner control method in the embodiment of the present application, the air conditioner control method includes the following steps 301 to 304:
301. and when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner.
In some embodiments of the present application, when the air conditioner is in the defrosting mode, the four-way valve is in a closed state, and the air conditioner performs a defrosting operation; and when the air conditioner meets the preset defrosting quitting condition, the air conditioner finishes the defrosting mode and opens the four-way valve.
In some embodiments of the present application, the preset condition for exiting defrosting may be that the air conditioner does not detect frosting, or may also be that the frosting area detected by the air conditioner is smaller than or equal to a preset numerical range, and further, the preset numerical range may be a specific numerical value, such as 1 square millimeter, 2 square millimeters, or 3 square millimeters, and the like, which is not limited herein.
In some embodiments of the present application, when the air conditioner finishes the defrosting mode and enters the heating mode, a command for opening the hot gas bypass solenoid valve is sent, the hot gas bypass solenoid valve is opened, and meanwhile, the master control timer starts timing.
In some embodiments of the present application, the detecting the capping temperature of the air conditioner may be detecting the capping temperature of the air conditioner through a capping temperature sensor, and the detecting the saturation temperature of the air conditioner may be detecting the high pressure of the air conditioner through a high pressure sensor and calculating the saturation temperature of the air conditioner.
302. And determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature.
In step 301, when the air conditioner finishes the defrosting mode and enters the heating mode, an instruction for opening the hot gas bypass solenoid valve is sent, and after the capping temperature and the saturation temperature of the air conditioner are detected, the exhaust superheat degree of the air conditioner is determined according to the capping temperature and the saturation temperature.
The exhaust superheat degree refers to a temperature difference between the temperature of an exhaust pipe or an inlet of a condenser of the compressor and a saturation temperature corresponding to actual condensing pressure, and specifically refers to a temperature difference value that the actual temperature at the current moment is higher than the saturation temperature corresponding to the actual pressure.
In some embodiments of the present application, the determining the degree of superheat of the exhaust gas of the air conditioner based on the capping temperature and the saturation temperature includes: subtracting the capping temperature and the saturation temperature to obtain a difference value between the capping temperature and the saturation temperature; and determining the exhaust superheat degree of the air conditioner according to the difference value.
In some embodiments of the present application, the capping temperature of the air conditioner detected by the capping temperature sensor is TpThe saturation temperature of the air conditioner detected by the high pressure sensor is TsFor example, the capping temperature TpAnd saturation temperatureTsAccording to the formula Tdsh＝TP-TsCalculating to obtain the difference T between the capping temperature and the saturation temperaturedsh(ii) a According to the difference value TdshDirectly applying said difference TdshAs the degree of superheat of the exhaust gas of the air conditioner.
It can be understood that a certain error may be caused due to the detection accuracy of the sensor or the influence of the ambient humidity, so in some embodiments of the present application, in addition to directly using the difference as the exhaust superheat of the air conditioner, the difference may be fitted through a preset exhaust superheat fitting coefficient to obtain a fitted difference, and the fitted difference is used as the exhaust superheat of the air conditioner.
In some embodiments of the present application, the preset exhaust superheat fitting coefficient may be a specific value, such as 0.01, 0.02, or 0.03, etc.
303. And determining whether the air conditioner meets the preset condition of closing the hot gas bypass electromagnetic valve or not according to the exhaust superheat degree.
After determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature in step 302, determining whether the air conditioner meets a preset condition of closing a hot gas bypass solenoid valve according to the exhaust superheat degree.
The preset conditions for closing the hot gas bypass electromagnetic valve comprise an exhaust superheat correction condition and a hot gas bypass electromagnetic valve opening time condition.
Further, the exhaust superheat degree correction condition is that the exhaust superheat degree is greater than or equal to a preset correction value, and the preset correction value is a product of a preset exhaust superheat degree correction coefficient and a preset factory exhaust superheat degree.
Further, the opening time condition of the hot gas bypass electromagnetic valve is that the opening time of the hot gas bypass electromagnetic valve is greater than or equal to the preset opening time of the hot gas bypass electromagnetic valve.
It is understood that, besides the exhaust superheat correction condition and the opening time condition of the hot gas bypass solenoid valve provided in the above embodiments of the present application, other conditions for closing the hot gas bypass solenoid valve may also be included, and the specific details are not limited herein.
304. And if so, sending a command for closing the hot gas bypass electromagnetic valve.
After determining whether the air conditioner meets a preset condition for closing the hot gas bypass electromagnetic valve according to the exhaust superheat degree in step 303, if the air conditioner meets the preset condition for closing the hot gas bypass electromagnetic valve, sending an instruction for closing the hot gas bypass electromagnetic valve.
The electromagnetic valve is widely applied to a liquid pipe, an air suction pipe and a hot air pipe of a refrigerating system, can be used for timely cutting off the liquid pipe when the refrigerating system stops, prevents liquid refrigerant from entering an evaporator and a compressor after the refrigerating system stops, can play a bypass role by connecting the electromagnetic valve between an exhaust pipe and an air return pipe, and is used for adjusting the load of the refrigerating system.
In some embodiments of the present application, an inlet of the hot gas bypass solenoid valve is connected to a high pressure inlet pipe of the four-way valve, an outlet of the hot gas bypass solenoid valve is connected to an inlet of the gas-liquid separator, and when the air conditioner finishes the defrosting mode and enters the heating mode, the hot gas bypass solenoid valve is turned on and off to relieve the problems of short-time liquid return and wet compression of the compressor of the air conditioner.
The embodiment of the application provides an air conditioner control method, through set up steam bypass solenoid valve between the high pressure inlet pipe of cross valve and vapour and liquid separator import, through after the defrosting is heated to air conditioner low temperature, open steam bypass solenoid valve, and calculate the exhaust superheat degree of air conditioner, according to the exhaust superheat degree is confirmed whether the air conditioner satisfies the predetermined hot bypass solenoid valve condition of closing, if satisfy then close steam bypass solenoid valve to solve the defect that the defrosting finishes the back air conditioner compressor short time liquid return and wet compression at low temperature heating, promoted air conditioner compressor's life, and then strengthened the reliability of air conditioner complete machine.
In some embodiments of the present application, the sending a command to open the hot gas bypass solenoid valve when the air conditioner finishes the defrosting mode and enters the heating mode includes: acquiring a first control instruction for entering the heating mode; acquiring a current operation mode of the air conditioner according to the first control instruction; and if the current operation mode is the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
It will be appreciated that the method further comprises the steps of: acquiring a second control instruction for finishing the defrosting mode; and sending an instruction for opening the four-way valve according to the second control instruction.
The first control instruction is used for controlling the air conditioner to enter the heating mode, and the second control instruction is used for controlling the air conditioner to end the defrosting mode.
Further, when the air conditioner finishes the defrosting mode and enters the heating mode, the hot gas bypass electromagnetic valve and the four-way valve are both in an open state.
In a specific embodiment, taking a preset exit defrosting condition that the air conditioner does not detect frosting as an example, when the air conditioner does not detect frosting, acquiring a first control instruction for entering the heating mode; acquiring a current operation mode of the air conditioner according to the first control instruction; and if the current operation mode is still the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
The air conditioner control method that this application embodiment provided, through first control command control the air conditioner gets into heat the mode, and pass through second control command control the air conditioner finishes the defrost mode makes the air conditioner controls in order the opening and closing of steam bypass solenoid valve with the cross valve has improved reliability and stability of compressor in the operation.
In some embodiments of the present application, the preset condition for closing the hot gas bypass solenoid valve includes an exhaust superheat correction condition and a hot gas bypass solenoid valve opening time condition, and the determining whether the air conditioner satisfies the preset condition for closing the hot gas bypass solenoid valve according to the exhaust superheat includes the following steps: and determining whether the air conditioner simultaneously meets the exhaust superheat correction condition and the opening time condition of the hot gas bypass electromagnetic valve according to the exhaust superheat.
It is understood that, according to the exhaust superheat, determining whether the air conditioner satisfies both the exhaust superheat correction condition and the hot gas bypass solenoid valve on-time condition may be: and determining whether the exhaust superheat degree of the air conditioner is greater than or equal to a preset correction value or not and whether the opening time of the hot gas bypass electromagnetic valve is greater than or equal to the preset opening time of the hot gas bypass electromagnetic valve or not according to the exhaust superheat degree and the opening time of the hot gas bypass electromagnetic valve counted by the master control timer.
The exhaust superheat correction condition is that the exhaust superheat is larger than or equal to a preset correction value, and the preset correction value is the product of a preset exhaust superheat correction coefficient and a preset factory exhaust superheat.
Further, the preset exhaust superheat degree correction coefficient may be a specific value, such as a specific value of 1, 2, or 3, or may be a range of values, such as between 1 and 2, between 2 and 3, or between 5 and 10, etc.; the preset factory exhaust superheat degree may be a minimum factory exhaust superheat degree of the compressor or a current time factory exhaust superheat degree of the compressor, and is not limited herein.
The opening time condition of the hot gas bypass electromagnetic valve is that the opening time of the hot gas bypass electromagnetic valve is larger than or equal to the preset opening time of the hot gas bypass electromagnetic valve.
Further, the preset opening time of the hot gas bypass solenoid valve may be a specific value, such as a specific number of minutes, e.g., 5 minutes, 10 minutes, or 15 minutes, etc., or may be a range of values, such as 5 minutes to 10 minutes, 10 minutes to 15 minutes, or 15 minutes to 20 minutes, etc., which is not limited herein.
In one embodiment, the capping temperature of the air conditioner is detected by a capping temperature sensorIs TpThe saturation temperature of the air conditioner detected by the high pressure sensor is TsThe calculation formula of the exhaust superheat degree is Tdsh＝TP-TsThe preset exhaust superheat correction coefficient mu is 1, and the preset factory exhaust superheat is TpdshThe method comprises the following steps of counting the opening time of the hot gas bypass electromagnetic valve by the master control timer, wherein the opening time of the hot gas bypass electromagnetic valve is T, the preset opening time T of the hot gas bypass electromagnetic valve is 5 minutes, and the specific implementation of the air conditioner control method comprises the following steps:
acquiring a first control instruction for entering the heating mode; acquiring a current operation mode of the air conditioner according to the first control instruction; if the current operation mode is the defrosting mode, ending the defrosting mode, entering the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature T of the air conditionerpAnd saturation temperature Ts(ii) a According to the capping temperature TpAnd the saturation temperature TsAnd calculating formula Tdsh＝TP-TsDetermining the degree of superheat T of exhaust gas of the air conditionerdsh(ii) a According to the superheat degree T of the exhaust gasdshAnd the opening time T of the hot gas bypass electromagnetic valve counted by the master control timer is used for determining the exhaust superheat degree T of the air conditionerdshWhether greater than or equal to 1 × TpdshNamely TdshGreater than or equal to TpdshWhether the opening time T of the hot gas bypass electromagnetic valve is more than or equal to the preset opening time of the hot gas bypass electromagnetic valve for 5 minutes or not is judged; if the exhaust superheat degree T of the air conditionerdshGreater than or equal to TpdshAnd the opening time T of the hot gas bypass electromagnetic valve is more than or equal to the preset opening time of the hot gas bypass electromagnetic valve for 5 minutes, and an instruction for closing the hot gas bypass electromagnetic valve is sent.
It is understood that in some embodiments of the present application, a mode may also be included: acquiring a third control instruction for entering the heating mode; acquiring the current operation mode of the air conditioner according to the third control instruction; if the current operation mode is the heating mode, keeping the heating mode; and if the current mode is the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
The air conditioner control method that this application embodiment provided, through set up steam bypass solenoid valve between the high pressure inlet pipe of cross valve and vapour and liquid separator import, through after the defrosting is heated to air conditioner low temperature, open steam bypass solenoid valve for high-temperature high-pressure gaseous state refrigerant supplements to the low pressure muffler on, mix with the low temperature gas-liquid two-phase state refrigerant of low pressure muffler and promote to get back to the compressor for normal atmospheric temperature gaseous state refrigerant and compress, thereby solved and heated the defect that the defrosting ended back air conditioner compressor short time returns liquid and wet compression at low temperature, promote air conditioner compressor's life, and then strengthened the reliability of air conditioner complete machine.
In order to better implement the air conditioning control method in the embodiment of the present application, on the basis of the air conditioning control method, an embodiment of the present application further provides an air conditioning control device, the air conditioner includes a four-way valve and a gas-liquid separator, a hot gas bypass solenoid valve is disposed between a high-pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, an operation mode of the air conditioner includes a defrosting mode and a heating mode, as shown in fig. 4, the air conditioning control device 400 includes:
a detecting unit 401, configured to send an instruction to open the hot gas bypass solenoid valve when the air conditioner finishes the defrosting mode and enters the heating mode, and detect a capping temperature and a saturation temperature of the air conditioner;
a first determination unit 402 for determining a degree of superheat of exhaust gas of the air conditioner based on the capping temperature and the saturation temperature;
a second determining unit 403, configured to determine whether the air conditioner satisfies a preset condition for closing a hot gas bypass solenoid valve according to the exhaust superheat degree;
a sending unit 404, configured to send a command to close the hot gas bypass solenoid valve.
The application provides an air conditioner control device, including cross valve and vapour and liquid separator in the air conditioner the high pressure inlet tube of cross valve with set up steam bypass solenoid valve between the vapour and liquid separator import, through after the defrosting is heated to air conditioner low temperature, open steam bypass solenoid valve, and calculate the exhaust superheat degree of air conditioner is according to the exhaust superheat degree is confirmed whether the air conditioner satisfies predetermined closed steam bypass solenoid valve condition, if satisfy then close steam bypass solenoid valve to solve the defect that the liquid and wet compression are returned to air conditioner compressor short time after the defrosting finishes in low temperature heating, promote air conditioner compressor's life, and then strengthened the reliability of air conditioner complete machine.
In some embodiments of the present application, the detecting unit 401 is specifically configured to:
acquiring a first control instruction for entering the heating mode;
acquiring a current operation mode of the air conditioner according to the first control instruction;
and if the current operation mode is the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
In some embodiments of the present application, the detecting unit 401 is specifically configured to:
acquiring a second control instruction for finishing the defrosting mode;
and sending an instruction for opening the four-way valve according to the second control instruction.
In some embodiments of the present application, the first determining unit 402 is specifically configured to:
subtracting the capping temperature and the saturation temperature to obtain a difference value between the capping temperature and the saturation temperature;
and determining the exhaust superheat degree of the air conditioner according to the difference value.
In some embodiments of the present application, the preset conditions for closing the hot gas bypass solenoid valve include an exhaust superheat correction condition and a hot gas bypass solenoid valve opening time condition, and the second determining unit 403 is specifically configured to:
and determining whether the air conditioner simultaneously meets the exhaust superheat correction condition and the opening time condition of the hot gas bypass electromagnetic valve according to the exhaust superheat.
The embodiment of the present application still provides an air conditioner, and it has integrated any kind of air conditioner controlling means that the embodiment of the present application provided, including cross valve and vapour and liquid separator in the air conditioner the high-pressure inlet pipe of cross valve with set up hot gas bypass solenoid valve between the vapour and liquid separator import, the air conditioner still includes:
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioning control method of any of the above embodiments.
As shown in fig. 5, it shows a schematic structural diagram of an air conditioner according to an embodiment of the present application, specifically:
the air conditioner may include components such as a processor 501 of one or more processing cores, memory 502 of one or more computer-readable storage media, a power supply 503, and an input unit 504. Those skilled in the art will appreciate that the air conditioning configuration shown in fig. 5 does not constitute a limitation of the air conditioner, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the processor 501 is a control center of the air conditioner, connects various parts of the whole air conditioner by using various interfaces and lines, and performs various functions of the air conditioner and processes data by running or executing software programs and/or modules stored in the memory 502 and calling data stored in the memory 502, thereby performing overall monitoring of the air conditioner. Optionally, processor 501 may include one or more processing cores; the Processor 501 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, and preferably the processor 501 may integrate an application processor, which handles primarily the operating system, user interfaces, application programs, etc., and a modem processor, which handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 501.
The memory 502 may be used to store software programs and modules, and the processor 501 executes various functional applications and data processing by operating the software programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the air conditioner, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 501 with access to the memory 502.
The air conditioner further comprises a power supply 503 for supplying power to each component, and preferably, the power supply 503 may be logically connected to the processor 501 through a power management system, so that functions of managing charging, discharging, power consumption and the like are realized through the power management system. The power supply 503 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The air conditioner may further include an input unit 504, and the input unit 504 may be used to receive input numeric or character information and generate a keyboard, mouse, joystick, optical or trackball signal input in relation to user settings and function control.
Although not shown, the air conditioner may further include a display unit and the like, which will not be described in detail herein. Specifically, in this embodiment, the processor 501 in the air conditioner loads the executable file corresponding to the process of one or more application programs into the memory 502 according to the following instructions, and the processor 501 runs the application programs stored in the memory 502, so as to implement various functions as follows:
when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner;
determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature;
determining whether the air conditioner meets the preset condition of closing a hot gas bypass electromagnetic valve or not according to the exhaust superheat degree;
and if so, sending a command for closing the hot gas bypass electromagnetic valve.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present application provides a computer-readable storage medium, which may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like. The air conditioner control method comprises a step of storing a computer program, and a step of executing the steps in any one of the air conditioner control methods provided by the embodiments of the application by loading the computer program by a processor. For example, the computer program may be loaded by a processor to perform the steps of:
when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner;
determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature;
determining whether the air conditioner meets the preset condition of closing a hot gas bypass electromagnetic valve or not according to the exhaust superheat degree;
and if so, sending a command for closing the hot gas bypass electromagnetic valve.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
The foregoing detailed description is directed to an air conditioner control method, an air conditioner control device, an air conditioner, and a storage medium provided in the embodiments of the present application, and specific examples are applied herein to explain the principles and implementations of the present application, and the descriptions of the foregoing embodiments are only used to help understand the methods and core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A control method of an air conditioner is characterized in that the air conditioner comprises a four-way valve and a gas-liquid separator, a hot gas bypass solenoid valve is arranged between a high-pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, the operation mode of the air conditioner comprises a defrosting mode and a heating mode, and the method comprises the following steps:
when the air conditioner finishes the defrosting mode and enters the heating mode, sending an instruction for opening the hot gas bypass electromagnetic valve, and detecting the top pressing temperature and the saturation temperature of the air conditioner;
determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature;
determining whether the air conditioner meets the preset condition of closing a hot gas bypass electromagnetic valve or not according to the exhaust superheat degree;
and if so, sending a command for closing the hot gas bypass electromagnetic valve.
2. The air conditioner control method according to claim 1, wherein the sending of the instruction to open the hot gas bypass solenoid valve when the air conditioner ends the defrosting mode to enter the heating mode comprises:
acquiring a first control instruction for entering the heating mode;
acquiring a current operation mode of the air conditioner according to the first control instruction;
and if the current operation mode is the defrosting mode, ending the defrosting mode, entering the heating mode, and sending an instruction for opening the hot gas bypass electromagnetic valve.
3. The air conditioner control method according to claim 2, characterized by further comprising:
acquiring a second control instruction for finishing the defrosting mode;
and sending an instruction for opening the four-way valve according to the second control instruction.
4. The air conditioner control method according to claim 1, wherein said determining a degree of superheat of exhaust air of said air conditioner based on said capping temperature and said saturation temperature comprises:
subtracting the capping temperature and the saturation temperature to obtain a difference value between the capping temperature and the saturation temperature;
and determining the exhaust superheat degree of the air conditioner according to the difference value.
5. The air conditioner control method according to claim 1, wherein the preset conditions for closing the hot gas bypass solenoid valve include a discharge superheat correction condition and a hot gas bypass solenoid valve opening time condition, and the determining whether the air conditioner satisfies the preset conditions for closing the hot gas bypass solenoid valve based on the discharge superheat includes:
and determining whether the air conditioner simultaneously meets the exhaust superheat correction condition and the opening time condition of the hot gas bypass electromagnetic valve according to the exhaust superheat.
6. The air conditioning control method according to claim 5, wherein the exhaust superheat correction condition is that the exhaust superheat is greater than or equal to a preset correction value, and the preset correction value is a product of a preset exhaust superheat correction coefficient and a preset factory exhaust superheat.
7. The air conditioner control method according to claim 5, wherein the opening time condition of the hot gas bypass solenoid valve is that the opening time of the hot gas bypass solenoid valve is greater than or equal to a preset opening time of the hot gas bypass solenoid valve.
8. An air conditioner control device, characterized in that, the air conditioner includes a four-way valve and a gas-liquid separator, a hot gas bypass solenoid valve is arranged between a high pressure inlet pipe of the four-way valve and an inlet of the gas-liquid separator, the operation mode of the air conditioner includes a defrosting mode and a heating mode, the device includes:
the detection unit is used for sending an instruction for opening the hot gas bypass electromagnetic valve when the air conditioner finishes the defrosting mode and enters the heating mode, and detecting the top pressing temperature and the saturation temperature of the air conditioner;
a first determination unit for determining the exhaust superheat degree of the air conditioner according to the capping temperature and the saturation temperature;
the second determining unit is used for determining whether the air conditioner meets the preset condition of closing the hot gas bypass electromagnetic valve or not according to the exhaust superheat degree;
and the sending unit is used for sending a command for closing the hot gas bypass electromagnetic valve.
9. The utility model provides an air conditioner which characterized in that, including cross valve and vapour and liquid separator in the air conditioner, set up hot gas bypass solenoid valve between the high-pressure inlet pipe of cross valve and the import of vapour and liquid separator, the air conditioner still includes:
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioner control method of any one of claims 1 to 7.
10. A computer-readable storage medium, having stored thereon a computer program which is loaded by a processor to perform the steps in the air-conditioning control method according to any one of claims 1 to 7.
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| CN202110478923.8A CN113218043A (en) | 2021-04-30 | 2021-04-30 | Air conditioner control method and device, air conditioner and storage medium |
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| CN202110478923.8A CN113218043A (en) | 2021-04-30 | 2021-04-30 | Air conditioner control method and device, air conditioner and storage medium |
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Application publication date: 20210806 |