CN110848852B - Air conditioner and control method and control device thereof - Google Patents

Air conditioner and control method and control device thereof Download PDF

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Publication number
CN110848852B
CN110848852B CN201911203945.2A CN201911203945A CN110848852B CN 110848852 B CN110848852 B CN 110848852B CN 201911203945 A CN201911203945 A CN 201911203945A CN 110848852 B CN110848852 B CN 110848852B
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Prior art keywords
temperature difference
way valve
cold
compressor
controlling
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CN110848852A (en
Inventor
俞茂汕
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • 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
    • F24F11/80—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
    • F24F11/83—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
    • F24F11/85—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 variable-flow pumps
    • 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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2501—Bypass valves
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Abstract

The invention provides an air conditioner and a control method and a control device thereof, wherein the air conditioner comprises: the cold conveying system comprises a liquid pump, a first cold conveying heat exchanger and a cold accumulation heat exchanger, and secondary refrigerant circulates in the cold conveying system; the cold accumulation refrigeration system comprises a compressor, a cold accumulation condenser, a throttling device, a first one-way valve, a cold accumulation evaporator, a second one-way valve and a second cold conveying heat exchanger, wherein the outlet of the compressor is connected with the inlet of the cold accumulation condenser, the outlet of the cold accumulation condenser is connected with the inlet of the throttling device, the outlet of the throttling device is respectively connected with the inlet of the first one-way valve and the inlet of the second one-way valve, the outlet of the first one-way valve is connected with the inlet of the cold accumulation evaporator, the outlet of the cold accumulation evaporator is connected with the inlet of the compressor, the outlet of the second one-way valve is connected with the inlet of the second cold conveying heat exchanger, the outlet of the second cold conveying heat exchanger is connected with the inlet of the compressor, and a refrigerant circulates in the cold accumulation refrigeration system; an air supply fan and an air exhaust fan.

Description

Air conditioner and control method and control device thereof
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner, a control device of the air conditioner and the air conditioner with the control device.
Background
An ice storage mobile air conditioner generally uses night low-valley load electric power to make ice and stores the ice in a cold storage device, ice melting in daytime releases the stored cold, and reduces the electric load of the air conditioner and the installed capacity of an air conditioning system during peak time of a power grid. When the ice cold accumulation mobile air conditioner is started in a refrigeration mode, the compressor is controlled not to be started, and the air supply fan blows cold air formed after heat exchange of the cold supply heat exchanger to the indoor. The ice cold accumulation mobile air conditioner is limited by a cold accumulation mode, a cold conveying heat exchanger and the like, the refrigerating capacity of the system is small, and the requirement of a user for quick refrigeration cannot be met.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first object of the present invention is to provide an air conditioner, which can meet the requirement of users for rapid cooling.
The second objective of the present invention is to provide a control method of an air conditioner.
A third object of the present invention is to provide a control apparatus for an air conditioner.
A fourth object of the invention is to propose an electronic device.
A fifth object of the present invention is to propose a computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an air conditioner, including: the cold conveying system comprises a liquid pump, a first cold conveying heat exchanger and a cold accumulation heat exchanger, wherein an outlet of the liquid pump is connected with an inlet of the first cold conveying heat exchanger, an outlet of the first cold conveying heat exchanger is connected with an inlet of the cold accumulation heat exchanger, an outlet of the cold accumulation heat exchanger is connected with an inlet of the liquid pump, and a secondary refrigerant circulates in the cold conveying system; the cold accumulation refrigeration system comprises a compressor, a cold accumulation condenser, a throttling device, a first one-way valve, a cold accumulation evaporator, a second one-way valve and a second cold conveying heat exchanger, wherein the outlet of the compressor is connected with the inlet of the cold accumulation condenser, the outlet of the cold accumulation condenser is connected with the inlet of the throttling device, the outlet of the throttling device is respectively connected with the inlet of the first one-way valve and the inlet of the second one-way valve, the outlet of the first one-way valve is connected with the inlet of the cold accumulation evaporator, the outlet of the cold accumulation evaporator is connected with the inlet of the compressor, the outlet of the second one-way valve is connected with the inlet of the second cold conveying heat exchanger, the outlet of the second cold conveying heat exchanger is connected with the inlet of the compressor, and a refrigerant circulates in the cold accumulation refrigeration system; an air supply fan and an air exhaust fan; the first cold-sending heat exchanger, the second cold-sending heat exchanger and the air supply fan are arranged in an air supply duct, and the cold accumulation condenser and the exhaust fan are arranged in an exhaust duct.
The air conditioner comprises a cold conveying system, a cold accumulation refrigerating system, an air supply fan and an exhaust fan, wherein the cold conveying system comprises a liquid pump, a first cold conveying heat exchanger and a cold accumulation heat exchanger; the cold accumulation refrigeration system comprises a compressor, a cold accumulation condenser, a throttling device, a first one-way valve, a cold accumulation evaporator, a second one-way valve and a second cold conveying heat exchanger, wherein the outlet of the compressor is connected with the inlet of the cold accumulation condenser, the outlet of the cold accumulation condenser is connected with the inlet of the throttling device, the outlet of the throttling device is respectively connected with the inlet of the first one-way valve and the inlet of the second one-way valve, the outlet of the first one-way valve is connected with the inlet of the cold accumulation evaporator, the outlet of the cold accumulation evaporator is connected with the inlet of the compressor, the outlet of the second one-way valve is connected with the inlet of the second cold conveying heat exchanger, the outlet of the second cold conveying heat exchanger is connected with the inlet of the compressor, and a refrigerant circulates in the cold accumulation refrigeration system; the first cold-sending heat exchanger, the second cold-sending heat exchanger and the air supply fan are arranged in the air supply duct, and the cold accumulation condenser and the air exhaust fan are arranged in the air exhaust duct. The air conditioner can meet the requirement of rapid refrigeration of a user.
In addition, the air conditioner provided according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the air conditioner further includes: and the controller is used for acquiring indoor environment temperature and set temperature, calculating the temperature difference between the indoor environment temperature and the set temperature, and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference.
According to an embodiment of the invention, the controller is specifically configured to: determining a temperature difference range interval corresponding to the temperature difference; and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference range interval.
According to an embodiment of the invention, the controller is specifically configured to: when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed; when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, controlling the compressor and the second one-way valve to be opened, and controlling the liquid pump and the first one-way valve to be closed; if the temperature difference is higher than a preset third temperature difference threshold and lower than the second temperature difference threshold, controlling the liquid pump to be started, and controlling the compressor, the second one-way valve and the first one-way valve to be closed; and if the temperature difference reaches or is lower than the third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
In order to achieve the above object, a second aspect of the present invention provides a control method for an air conditioner, which is applied to the air conditioner provided in the first aspect, the control method including: acquiring indoor environment temperature and set temperature; calculating a temperature difference between the indoor ambient temperature and the set temperature; and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference.
According to the control method of the air conditioner, the indoor environment temperature and the set temperature are obtained, the temperature difference between the indoor environment temperature and the set temperature is calculated, and the compressor, the liquid pump, the first one-way valve and the second one-way valve are controlled to be opened or closed according to the temperature difference. Therefore, the method can meet different refrigeration requirements of users at different ambient temperatures.
In addition, the control method of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the controlling of the opening or closing of the compressor, the liquid pump, the first check valve, and the second check valve according to the temperature difference includes: determining a temperature difference range interval corresponding to the temperature difference; and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference range interval.
According to an embodiment of the present invention, the controlling of the compressor, the liquid pump, the first check valve, and the second check valve to be opened or closed according to the temperature difference range section includes: when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed; when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, controlling the compressor and the second one-way valve to be opened, and controlling the liquid pump and the first one-way valve to be closed; if the temperature difference is higher than a preset third temperature difference threshold and lower than the second temperature difference threshold, controlling the liquid pump to be started, and controlling the compressor, the second one-way valve and the first one-way valve to be closed; and if the temperature difference reaches or is lower than the third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
In order to achieve the above object, a third aspect of the present invention provides a control device for an air conditioner, which is applied to the air conditioner provided in the first aspect, the control device comprising: the acquisition module is used for acquiring the indoor environment temperature and the set temperature; the calculating module is used for calculating the temperature difference between the indoor environment temperature and the set temperature; and the control module is used for controlling the opening or closing of the compressor, the liquid pump, the first one-way valve and the second one-way valve according to the temperature difference.
According to the control device of the air conditioner, the acquisition module is used for acquiring the indoor environment temperature and the set temperature, the calculation module is used for calculating the temperature difference between the indoor environment temperature and the set temperature, and the control module is used for controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference. Therefore, the device can meet different refrigeration requirements of users at different ambient temperatures.
In addition, the control device of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the control module is specifically configured to: and determining a temperature difference range interval corresponding to the temperature difference, and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference range interval.
According to an embodiment of the present invention, the control module is specifically configured to: when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed; when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, controlling the compressor and the second one-way valve to be opened, and controlling the liquid pump and the first one-way valve to be closed; if the temperature difference is higher than a preset third temperature difference threshold and lower than the second temperature difference threshold, controlling the liquid pump to be started, and controlling the compressor, the second one-way valve and the first one-way valve to be closed; and if the temperature difference reaches or is lower than the third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
In order to achieve the above object, a fourth aspect of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the control method of the air conditioner when executing the program.
The electronic equipment of the embodiment of the invention can meet different refrigeration requirements of users at different environmental temperatures by executing the control method of the air conditioner.
To achieve the above object, a fifth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, the program, when executed by a processor, implementing the control method of the air conditioner.
The computer-readable storage medium of the embodiment of the invention can meet different refrigeration requirements of users at different environmental temperatures by executing the control method of the air conditioner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention; and
fig. 4 is a block diagram schematically illustrating a control apparatus of an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A control method of an air conditioner, a control device of an air conditioner, and an air conditioner having the control device according to embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention. As shown in fig. 1, an air conditioner according to an embodiment of the present invention includes: a cold air supply system, a cold accumulation refrigeration system, an air supply fan 10 and an exhaust fan 12.
The cold conveying system comprises a liquid pump 4, a first cold conveying heat exchanger 2 and a cold accumulation heat exchanger 6, an outlet of the liquid pump 4 is connected with an inlet of the first cold conveying heat exchanger 2, an outlet of the first cold conveying heat exchanger 2 is connected with an inlet of the cold accumulation heat exchanger 6, an outlet of the cold accumulation heat exchanger 6 is connected with an inlet of the liquid pump 4, and a secondary refrigerant such as ethylene glycol solution circulates in the cold conveying system in a circulating mode. The cold accumulation refrigerating system comprises a compressor 5, a cold accumulation condenser 1, a throttling device 3, a first one-way valve 13, a cold accumulation evaporator 7, a second one-way valve 14 and a second cold conveying heat exchanger 15, wherein an outlet of the compressor 5 is connected with an inlet of the cold accumulation condenser 1, an outlet of the cold accumulation condenser 1 is connected with an inlet of the throttling device 3, an outlet of the throttling device 3 is respectively connected with an inlet of the first one-way valve 13 and an inlet of the second one-way valve 14, an outlet of the first one-way valve 13 is connected with an inlet of the cold accumulation evaporator 7, an outlet of the cold accumulation evaporator 7 is connected with an inlet of the compressor 5, an outlet of the second one-way valve 14 is connected with an inlet of the second cold conveying heat exchanger 15, an outlet of the second cold conveying heat exchanger 15 is connected with an inlet of the compressor 5, and a refrigerant such as R290 circulates in the cold accumulation refrigerating system. The first cold-sending heat exchanger 2, the second cold-sending heat exchanger 15 and the air-supplying fan 10 are arranged in the air-supplying duct 11, and the cold-storage condenser 1 and the exhaust fan 12 are arranged in the exhaust air duct 16. It should be noted that the cold storage heat exchanger 6 and the cold storage evaporator 7 are provided in the cold storage device 8, and a cold storage agent such as purified water is stored in the cold storage device 8.
It is understood that the cold storage refrigeration system includes a cold storage system and a refrigeration system. The cold accumulation system is composed of a compressor 5, a cold accumulation condenser 1, a throttling device 3, a first one-way valve 13 and a cold accumulation evaporator 7, and the refrigeration system is composed of a compressor 5, a cold accumulation condenser 1, a throttling device 3, a second one-way valve 14 and a second cold conveying heat exchanger 15.
Specifically, the cold accumulation system is generally started at the time of a power consumption valley, and the working flow of the cold accumulation system is as follows: the refrigerant is compressed by the compressor 5 to form high-temperature and high-pressure gas, then enters the cold accumulation condenser 1 to be condensed and released, heat is discharged through the exhaust fan 12, the refrigerant after condensation and heat release sequentially flows into the cold accumulation evaporator 7 through the throttling device 3 and the first one-way valve 13, the cold accumulation evaporator 7 exchanges heat with the cold accumulation agent in the cold accumulation device 8, and cold can be stored in the cold accumulation device 8 for subsequent use. For example, the cold storage agent in the cold storage device 8 can be made into ice blocks by the operation of the compressor 5 (the operation time is about 1-4 hours), the made ice is stored by the cold storage device 8, when the cold storage agent in the cold storage device 8 reaches zero or below zero (the temperature is set according to the system), the compressor 5 stops operating, the cold storage effect in the state is optimal, the cold storage ice can be used for 12-24 hours once without starting the compressor 5 (according to the working condition), and when the temperature of the cold storage agent in the cold storage device 8 is increased to the preset temperature (the preset temperature), the compressor 5 is automatically started for cold storage.
The working flow of the refrigeration system is as follows: when the refrigerating system works, the refrigerant is compressed by the compressor 5 to form high-temperature and high-pressure gas, then enters the cold accumulation condenser 1 to be condensed and released, heat is discharged through the exhaust fan 12, the refrigerant after condensation and heat release sequentially flows into the second cold-sending heat exchanger 15 through the throttling device 3 and the second one-way valve 14, the refrigerant in the second cold-sending heat exchanger 15 exchanges heat with indoor air, and cold after heat exchange is blown to the indoor through the air supply fan 10.
The working flow of the cooling system is as follows: when the cold conveying system works, the secondary refrigerant cooled by the cold accumulation heat exchanger 6 is conveyed into the first cold conveying heat exchanger 2 through the liquid pump 4, and then the cold energy is blown to the indoor through the air supply fan 10.
According to an embodiment of the present invention, the air conditioner further includes: and a controller (not shown in the figure) for acquiring the indoor environment temperature and the set temperature, calculating the temperature difference between the indoor environment temperature and the set temperature, and controlling the compressor 5, the liquid pump 4, the first check valve 13 and the second check valve 14 to be opened or closed according to the temperature difference.
According to an embodiment of the invention, the controller is specifically configured to: determining a temperature difference range interval corresponding to the temperature difference; and controlling the compressor 5, the liquid pump 4, the first check valve 13 and the second check valve 14 to be opened or closed according to the temperature difference range interval.
According to an embodiment of the invention, the controller is specifically configured to: when the temperature difference reaches or is higher than a preset first temperature difference threshold value, the compressor 5, the liquid pump 4 and the second one-way valve 14 are controlled to be opened, and the first one-way valve 13 is controlled to be closed; when the temperature difference reaches or is higher than a preset second temperature difference threshold value and is lower than the first temperature difference threshold value, the compressor 5 and the second one-way valve 14 are controlled to be opened, and the liquid pump 4 and the first one-way valve 13 are controlled to be closed; if the temperature difference is higher than a preset third temperature difference threshold and lower than a second temperature difference threshold, the liquid pump 4 is controlled to be started, and the compressor 5, the second one-way valve 14 and the first one-way valve 13 are controlled to be closed; and when the temperature difference reaches or is lower than the third temperature difference threshold value, the compressor 5, the liquid pump 4, the first check valve 13 and the second check valve 14 are controlled to be closed. The first temperature difference threshold T11, the second temperature difference threshold T12, and the third temperature difference threshold T13 may be set according to actual needs, for example, the first temperature difference threshold T11 may be 5 ℃, the second temperature difference threshold T12 may be 2 ℃, and the third temperature difference threshold T13 may be 0 ℃.
Specifically, when a user needs to use the air conditioner for refrigeration, the air conditioner is remotely controlled to be started through a remote controller, or a start key is pressed through a man-machine interaction interface arranged on the air conditioner to control the air conditioner to be started, and the temperature T required by the user is set.
After the air conditioner is started, the indoor environment temperature T1 (obtained by a temperature sensor arranged on the air conditioner) and the set temperature T are firstly obtained, then the difference delta T between the indoor environment temperature T1 and the set temperature T is calculated, the delta T is equal to T1-T, and the relation between the delta T and T11, T12 and T13 is judged.
When the delta T is larger than or equal to T11, the compressor 5, the liquid pump 4 and the second one-way valve 14 are controlled to be opened, the first one-way valve 13 is controlled to be closed, the refrigerating system and the cold conveying system work at the moment, and the air supply fan 10 simultaneously conveys cold energy generated by the refrigerating system and the cold conveying system to the indoor space to achieve the purpose of rapid cooling; when the delta T is more than or equal to T12 and less than or equal to T11, the compressor 5 and the second one-way valve 14 are controlled to be opened, the liquid pump 4 and the first one-way valve 13 are controlled to be closed, only the refrigerating system works at the moment, and the air supply fan 10 sends the cold energy generated by the refrigerating system to the indoor space; when T13 is less than T and less than or equal to T12, the liquid pump 4 is controlled to be started, the compressor 5, the second one-way valve 14 and the first one-way valve 13 are controlled to be closed, only the cold supply system works at the moment, and the air supply fan 10 sends cold energy generated by the cold supply system to the indoor space, so that the effects of cooling and muting are achieved; and when the delta T is less than or equal to T13, the compressor 5, the liquid pump 4, the first one-way valve 13 and the second one-way valve 14 are controlled to be closed, and the cold sending system, the cold accumulation system and the refrigerating system do not work at the moment.
In order to make the present invention more clear to those skilled in the art, as shown in fig. 2, the control method of the air conditioner according to the embodiment of the present invention includes the following steps:
s101, starting the device, and setting the temperature to be T.
S102, detects the indoor temperature T1.
S103, calculates a temperature difference Δ T between the indoor temperature T1 and the set temperature T, where Δ T is T1-T.
S104, judging whether the temperature delta T is more than or equal to 5 ℃. If yes, go to step S105; if not, step S106 is performed.
And S105, starting the compressor, the liquid pump and the second one-way valve, and closing the first one-way valve. That is to say, the refrigeration system and the cooling system are controlled to work simultaneously, so as to achieve the purpose of rapid cooling.
S106, judging whether the temperature delta T is more than or equal to 2 ℃. If yes, go to step S107; if not, step S108 is performed.
And S107, opening the compressor and the second one-way valve, and closing the liquid pump and the first one-way valve. That is, only the refrigeration system is operating.
S108, judging whether the temperature delta T is more than 0 ℃. If yes, go to step S109; if not, step S110 is executed.
And S109, starting the liquid pump, and closing the compressor, the second one-way valve and the first one-way valve. That is to say, only the cooling system works, and the effect of cooling and muting is achieved.
And S110, closing the liquid pump, the compressor, the first one-way valve and the second one-way valve.
It should be noted that the air conditioner according to the embodiment of the present invention further includes a storage battery 9, and the storage battery 9 is used for supplying electric power to the air conditioner. The blowing fan 10 and the discharging fan 12 in the embodiment of the present invention may be configured by a cross flow fan, an axial flow fan, a centrifugal fan, or the like, and are not limited herein.
In summary, the air conditioner according to the embodiment of the present invention includes a cold conveying system, a cold storage refrigeration system, an air supply fan and an air exhaust fan, wherein the cold conveying system includes a liquid pump, a first cold conveying heat exchanger and a cold storage heat exchanger, an outlet of the liquid pump is connected to an inlet of the first cold conveying heat exchanger, an outlet of the first cold conveying heat exchanger is connected to an inlet of the cold storage heat exchanger, an outlet of the cold storage heat exchanger is connected to an inlet of the liquid pump, and a coolant circulates in the cold conveying system; the cold accumulation refrigeration system comprises a compressor, a cold accumulation condenser, a throttling device, a first one-way valve, a cold accumulation evaporator, a second one-way valve and a second cold conveying heat exchanger, wherein the outlet of the compressor is connected with the inlet of the cold accumulation condenser, the outlet of the cold accumulation condenser is connected with the inlet of the throttling device, the outlet of the throttling device is respectively connected with the inlet of the first one-way valve and the inlet of the second one-way valve, the outlet of the first one-way valve is connected with the inlet of the cold accumulation evaporator, the outlet of the cold accumulation evaporator is connected with the inlet of the compressor, the outlet of the second one-way valve is connected with the inlet of the second cold conveying heat exchanger, the outlet of the second cold conveying heat exchanger is connected with the inlet of the compressor, and a refrigerant circulates in the cold accumulation refrigeration system; the first cold-sending heat exchanger, the second cold-sending heat exchanger and the air supply fan are arranged in the air supply duct, and the cold accumulation condenser and the air exhaust fan are arranged in the air exhaust duct. The air conditioner can meet the requirement of rapid refrigeration of a user.
Fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the method for controlling an air conditioner according to an embodiment of the present invention includes:
and S1, acquiring the indoor environment temperature and the set temperature.
S2, a temperature difference between the indoor ambient temperature and the set temperature is calculated.
And S3, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference.
According to an embodiment of the present invention, controlling the compressor, the liquid pump, the first check valve, and the second check valve to be opened or closed according to a temperature difference includes: determining a temperature difference range interval corresponding to the temperature difference; and controlling the compressor, the liquid pump, the first check valve and the second check valve to be opened or closed according to the temperature difference range interval.
According to an embodiment of the present invention, controlling the compressor, the liquid pump, the first check valve, and the second check valve to be opened or closed according to the temperature difference range section includes: when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed; when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, the compressor and the second check valve are controlled to be opened, and the liquid pump and the first check valve are controlled to be closed; if the temperature difference is higher than a preset third temperature difference threshold and lower than a second temperature difference threshold, the liquid pump is controlled to be started, and the compressor, the second one-way valve and the first one-way valve are controlled to be closed; and if the temperature difference reaches or is lower than a third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
It should be noted that, for details that are not disclosed in the control method of the air conditioner in the embodiment of the present invention, please refer to details that are disclosed in the air conditioner in the embodiment of the present invention, and detailed description thereof is omitted here.
According to the control method of the air conditioner, the indoor environment temperature and the set temperature are obtained, the temperature difference between the indoor environment temperature and the set temperature is calculated, and the compressor, the liquid pump, the first one-way valve and the second one-way valve are controlled to be opened or closed according to the temperature difference. Therefore, the method can meet different requirements of users under different environmental temperatures.
Fig. 4 is a block diagram schematically illustrating a control apparatus of an air conditioner according to an embodiment of the present invention. As shown in fig. 4, a control device 100 of an air conditioner according to an embodiment of the present invention includes: an acquisition module 10, a calculation module 20 and a control module 30.
The obtaining module 10 is configured to obtain an indoor environment temperature and a set temperature, the calculating module 20 is configured to calculate a temperature difference between the indoor environment temperature and the set temperature, and the control module 30 is configured to control the compressor, the liquid pump, the first check valve, and the second check valve to be opened or closed according to the temperature difference.
It should be noted that the control module 30 may be a controller in an air conditioner.
According to an embodiment of the present invention, the control module 30 is specifically configured to: and determining a temperature difference range interval corresponding to the temperature difference, and controlling the compressor, the liquid pump, the first check valve and the second check valve to be opened or closed according to the temperature difference range interval.
According to an embodiment of the present invention, the control module 30 is specifically configured to: when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed; when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, the compressor and the second check valve are controlled to be opened, and the liquid pump and the first check valve are controlled to be closed; if the temperature difference is higher than a preset third temperature difference threshold and lower than a second temperature difference threshold, the liquid pump is controlled to be started, and the compressor, the second one-way valve and the first one-way valve are controlled to be closed; and if the temperature difference reaches or is lower than a third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
It should be noted that, for details not disclosed in the control device of the air conditioner in the embodiment of the present invention, please refer to details disclosed in the air conditioner in the embodiment of the present invention, and detailed description thereof is omitted here.
According to the control device of the air conditioner, the acquisition module is used for acquiring the indoor environment temperature and the set temperature, the calculation module is used for calculating the temperature difference between the indoor environment temperature and the set temperature, and the control module is used for controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference. Therefore, the device can meet different requirements of users at different ambient temperatures.
In addition, an embodiment of the present invention also provides an electronic device, including: the air conditioner control method comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the processor executes the program, the air conditioner control method is realized.
The electronic equipment of the embodiment of the invention can meet different requirements of users at different environmental temperatures by executing the control method of the air conditioner.
Furthermore, an embodiment of the present invention also proposes a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the control method of the air conditioner described above.
The computer-readable storage medium of the embodiment of the invention can meet different requirements of users at different ambient temperatures by executing the control method of the air conditioner.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (7)

1. An air conditioner, comprising:
the cold conveying system comprises a liquid pump, a first cold conveying heat exchanger and a cold accumulation heat exchanger, wherein an outlet of the liquid pump is connected with an inlet of the first cold conveying heat exchanger, an outlet of the first cold conveying heat exchanger is connected with an inlet of the cold accumulation heat exchanger, an outlet of the cold accumulation heat exchanger is connected with an inlet of the liquid pump, and a secondary refrigerant circulates in the cold conveying system;
the cold accumulation refrigeration system comprises a compressor, a cold accumulation condenser, a throttling device, a first one-way valve, a cold accumulation evaporator, a second one-way valve and a second cold conveying heat exchanger, wherein the outlet of the compressor is connected with the inlet of the cold accumulation condenser, the outlet of the cold accumulation condenser is connected with the inlet of the throttling device, the outlet of the throttling device is respectively connected with the inlet of the first one-way valve and the inlet of the second one-way valve, the outlet of the first one-way valve is connected with the inlet of the cold accumulation evaporator, the outlet of the cold accumulation evaporator is connected with the inlet of the compressor, the outlet of the second one-way valve is connected with the inlet of the second cold conveying heat exchanger, the outlet of the second cold conveying heat exchanger is connected with the inlet of the compressor, and a refrigerant circulates in the cold accumulation refrigeration system;
an air supply fan and an air exhaust fan;
the first cold-sending heat exchanger, the second cold-sending heat exchanger and the air supply fan are arranged in an air supply duct, the first cold-sending heat exchanger, the second cold-sending heat exchanger and the air supply fan are sequentially arranged in the air supply direction of the air supply duct, and the cold accumulation condenser and the air exhaust fan are arranged in an air exhaust duct;
the controller is used for acquiring indoor environment temperature and set temperature, calculating the temperature difference between the indoor environment temperature and the set temperature, and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference;
the controller is specifically configured to:
determining a temperature difference range interval corresponding to the temperature difference;
controlling the compressor, the liquid pump, the first check valve and the second check valve to be opened or closed according to the temperature difference range interval;
when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed;
when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, controlling the compressor and the second one-way valve to be opened, and controlling the liquid pump and the first one-way valve to be closed;
if the temperature difference is higher than a preset third temperature difference threshold and lower than the second temperature difference threshold, controlling the liquid pump to be started, and controlling the compressor, the second one-way valve and the first one-way valve to be closed;
and if the temperature difference reaches or is lower than the third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
2. A control method of an air conditioner, which is applied to the air conditioner according to claim 1, the control method comprising:
acquiring indoor environment temperature and set temperature;
calculating a temperature difference between the indoor ambient temperature and the set temperature;
and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference.
3. The control method according to claim 2, wherein the controlling of the compressor, the liquid pump, the first check valve, and the second check valve to be opened or closed according to the temperature difference includes:
determining a temperature difference range interval corresponding to the temperature difference;
and controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be opened or closed according to the temperature difference range interval.
4. The control method according to claim 3, wherein the controlling the compressor, the liquid pump, the first check valve, and the second check valve to be opened or closed according to the temperature difference range section includes:
when the temperature difference reaches or is higher than a preset first temperature difference threshold value, controlling the compressor, the liquid pump and the second check valve to be opened, and controlling the first check valve to be closed;
when the temperature difference reaches or is higher than a preset second temperature difference threshold and is lower than the first temperature difference threshold, controlling the compressor and the second one-way valve to be opened, and controlling the liquid pump and the first one-way valve to be closed;
if the temperature difference is higher than a preset third temperature difference threshold and lower than the second temperature difference threshold, controlling the liquid pump to be started, and controlling the compressor, the second one-way valve and the first one-way valve to be closed;
and if the temperature difference reaches or is lower than the third temperature difference threshold value, controlling the compressor, the liquid pump, the first one-way valve and the second one-way valve to be closed.
5. A control device of an air conditioner adapted to the air conditioner of claim 1, comprising:
the acquisition module is used for acquiring the indoor environment temperature and the set temperature;
the calculating module is used for calculating the temperature difference between the indoor environment temperature and the set temperature;
and the control module is used for controlling the opening or closing of the compressor, the liquid pump, the first one-way valve and the second one-way valve according to the temperature difference.
6. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of controlling an air conditioner according to any one of claims 2 to 4 when executing the program.
7. A computer-readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the control method of an air conditioner according to any one of claims 2 to 4.
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