CN113483451A - Control method and module for air conditioner operation, air conditioner and computer storage medium - Google Patents
Control method and module for air conditioner operation, air conditioner and computer storage medium Download PDFInfo
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- CN113483451A CN113483451A CN202110784532.9A CN202110784532A CN113483451A CN 113483451 A CN113483451 A CN 113483451A CN 202110784532 A CN202110784532 A CN 202110784532A CN 113483451 A CN113483451 A CN 113483451A
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 72
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000005057 refrigeration Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 147
- 238000007710 freezing Methods 0.000 claims description 44
- 230000008014 freezing Effects 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 20
- 230000009467 reduction Effects 0.000 claims description 14
- 238000004378 air conditioning Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 7
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 5
- 230000002528 anti-freeze Effects 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- 239000002826 coolant Substances 0.000 description 19
- 238000012545 processing Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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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
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
- 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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides a control method and a module for air conditioner operation, an air conditioner and a computer storage medium, and belongs to the technical field of air conditioners. The method comprises the following steps: acquiring the current temperature and the target type of a target secondary refrigerant, wherein the target secondary refrigerant is a substance which exists in an air conditioner at present and is used for evaporative refrigeration; determining the target density of the target secondary refrigerant according to the target type; under the condition that the target density is larger than a preset density threshold value and the current temperature meets a preset temperature range, determining the target concentration of the target secondary refrigerant according to the target density and the current temperature; determining air conditioner parameters according to the target concentration; and controlling the air conditioner to operate according to the air conditioner parameters. The application expands the application range of the air conditioner.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a control method and a module for air conditioner operation, an air conditioner and a computer storage medium.
Background
At present, a water cooling unit (air conditioner) is widely applied to the industries of chemical engineering, medicine, food processing and the like and used for a low-temperature cooling process, the water cooling unit can select any one of various solutions as a low-temperature secondary refrigerant, such as methanol, ethylene glycol, propylene glycol, calcium chloride, sodium chloride and the like, and due to the diversity of the use occasions, the adopted secondary refrigerants are different, and the requirements of cooling water temperatures of different secondary refrigerants are different. Therefore, before ordering the water chiller units on different use occasions, a user needs to separately explain the type of the secondary refrigerant used by the water chiller units and the cooling water temperature range to a manufacturer, the manufacturer configures the unit parameters according to the actual requirements of the user, and the water chiller units after the parameters are configured have a narrow adjustment range, are generally applicable to only one working environment, have a small application range and cannot comprehensively meet various occasions under multiple working conditions.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method and a module for controlling an operation of an air conditioner, and a computer storage medium, so as to solve the problem of a small application range. The specific technical scheme is as follows:
in a first aspect, there is provided a method for controlling an operation of an air conditioner, the method including:
acquiring the current temperature and the target type of a target secondary refrigerant, wherein the target secondary refrigerant is a substance which exists in an air conditioner at present and is used for evaporative refrigeration;
determining the target density of the target secondary refrigerant according to the target type;
under the condition that the target density is larger than a preset density threshold value and the current temperature meets a preset temperature range, determining the target concentration of the target secondary refrigerant according to the target density and the current temperature;
determining air conditioner parameters according to the target concentration;
and controlling the air conditioner to operate according to the air conditioner parameters.
Optionally, the air conditioning parameter includes a minimum water temperature threshold, and the determining the air conditioning parameter according to the target concentration includes:
determining a target freezing temperature of the target secondary refrigerant according to the target concentration;
and determining the lowest water temperature range according to the target freezing temperature, wherein the lowest water temperature value in the lowest water temperature range is higher than the target freezing temperature, and the lowest water temperature range is used for air conditioner inlet water or air conditioner outlet water.
Optionally, after determining the minimum water temperature range according to the target icing temperature, the method further comprises:
determining at least one water temperature threshold in the lowest water temperature range, and acquiring the current water temperature of the air conditioner after a preset time length;
and adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold value.
Optionally, the water temperature threshold includes a lowest freeze prevention shutdown temperature and a lowest frequency reduction temperature, and the adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold includes:
and under the condition that the current water temperature of the air conditioner is greater than the lowest anti-freezing shutdown temperature and less than or equal to the lowest frequency reduction temperature, reducing the operation frequency of the air conditioner so as to improve the current water temperature of the air conditioner.
Optionally, the water temperature threshold includes a lowest frequency limiting temperature and a lowest frequency reducing temperature, and the adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold includes:
and maintaining the current operating frequency of the air conditioner under the condition that the current water temperature of the air conditioner is greater than the lowest frequency reduction temperature and less than or equal to the lowest frequency limit temperature.
Optionally, the water temperature threshold includes a lowest frequency limit temperature, and the adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold includes:
determining the current time under the condition that the current water temperature of the air conditioner is greater than the lowest limit frequency temperature;
based on the current time, a preset time length is prolonged to obtain a target time;
determining the target operation frequency of the air conditioner according to the load capacity of the compressor of the air conditioner at the target moment;
and operating the air conditioner according to the target operation frequency at the target moment.
Optionally, the water temperature threshold includes a minimum anti-freezing shutdown temperature, and the adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold includes:
and maintaining the current operating frequency of the air conditioner and performing air conditioner shutdown treatment under the condition that the current water temperature of the air conditioner is less than or equal to the lowest freeze-proof shutdown temperature.
In a second aspect, a control module for air conditioning operation is provided, the module comprising:
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring the current temperature and the target type of a target secondary refrigerant, and the target secondary refrigerant is a substance which exists in an air conditioner at present and is used for evaporative refrigeration;
the first determination module is used for determining the target density of the target secondary refrigerant according to the target type;
the second determination module is used for determining the target concentration of the target secondary refrigerant according to the target density and the current temperature under the condition that the target density is larger than a preset density threshold value and the current temperature meets a preset temperature range;
the third determining module is used for determining air conditioner parameters according to the target concentration;
and the fourth determination module is used for controlling the air conditioner to operate according to the air conditioner parameters.
In a third aspect, an air conditioner is provided, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for the memory to complete mutual communication through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing the steps of the control method for the operation of the air conditioner when executing the program stored in the memory.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when executed by a processor, implements any of the steps of the method for controlling the operation of an air conditioner.
The embodiment of the application has the following beneficial effects:
the embodiment of the application provides a control method for air conditioner operation, wherein an air conditioner acquires a target type of a target secondary refrigerant; determining the current temperature and the target density of the target secondary refrigerant according to the target type; determining the target concentration of the target secondary refrigerant according to the current temperature and the target density; determining air conditioner parameters according to the target concentration; and controlling the air conditioner to operate according to the air conditioner parameters.
The air conditioner in the application can be suitable for various secondary refrigerants, a user does not need to carry out remark explanation on a manufacturer in advance, the user experience is improved, the air conditioner is also suitable for various industries and occasions, various scenes can be comprehensively met under various conditions, and the application range of the air conditioner is enlarged. The method and the device can also automatically determine the air conditioner parameters according to the secondary refrigerant, and a manufacturer does not need to reconfigure the air conditioner parameters according to the user requirements, so that the manufacturing procedures of the manufacturer are saved, and the production efficiency of the manufacturer is improved.
Of course, not all of the above advantages need be achieved in the practice of any one product or method of the present application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a hardware environment schematic diagram of a control method for air conditioner operation according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a method for controlling the operation of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device for air conditioner operation according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, 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 following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
In order to solve the problems mentioned in the background art, according to an aspect of embodiments of the present application, an embodiment of a control method of an air conditioner operation is provided.
Alternatively, in the embodiment of the present application, the control method of the air conditioner operation may be applied to a hardware environment formed by the air conditioner 101 and the server 103 as shown in fig. 1. As shown in fig. 1, the server 103 is connected to the air conditioner 101 through a network, which may be used for providing services for the air conditioner, and the database 105 may be provided on the server or separately from the server, for providing data storage services for the server 103, and the network includes but is not limited to: a wide area network, a metropolitan area network, or a local area network.
The control method for the air conditioner operation in the embodiment of the present application may be executed by the server 103, or may be executed by the air conditioner 101, and is used for determining the parameter of the air conditioner.
The following will describe in detail a control method for air conditioner operation provided in an embodiment of the present application with reference to a specific embodiment, taking an air conditioner as an execution main body, as shown in fig. 2, specifically including the following steps:
step 201: and acquiring the current temperature and the target type of the target secondary refrigerant.
The target refrigerating medium is a substance which is currently existing in the air conditioner and is used for evaporative refrigeration.
In the embodiment of the application, the air conditioner enters an initial detection state after being powered on and started, and prompts a user to set the type of the secondary refrigerant to be used. The user can add corresponding target secondary refrigerant into the air conditioner according to the using occasion of the air conditioner and set the target type of the target secondary refrigerant, wherein the user can select the target type of the target secondary refrigerant which is currently added into the air conditioner from a plurality of secondary refrigerant types and can also directly input the target type of the target secondary refrigerant. The selection operation of the user can be executed on the air conditioner, a terminal associated with the air conditioner or application software associated with the air conditioner. After receiving a setting instruction of a user, the air conditioner determines the target type of the target secondary refrigerant and can detect the current temperature of the target secondary refrigerant through the temperature sensor.
The type of the coolant comprises, but is not limited to, a methanol solution low-temperature coolant, an ethylene glycol solution low-temperature coolant, a propylene glycol solution low-temperature coolant, a calcium chloride solution low-temperature coolant or a sodium chloride solution low-temperature coolant. The type of coolant is not limited in this application.
Step 202: and determining the target density of the target refrigerating medium according to the target type.
In the embodiment of the application, the air conditioner pre-stores chemical property parameter information and physical property parameter information of the coolant, and the physical property parameter information comprises the density of the coolant. The air conditioner also prestores a first incidence relation between the type and the density of the target secondary refrigerant, and after the air conditioner determines the target type of the target secondary refrigerant, the target density of the target secondary refrigerant can be determined according to the first incidence relation.
Step 203: and under the condition that the target density is larger than the preset density threshold value and the current temperature meets the preset temperature range, determining the target concentration of the target secondary refrigerant according to the target density and the current temperature.
In the embodiment of the application, a second correlation relationship among the density of the secondary refrigerant, the current temperature of the secondary refrigerant and the concentration of the secondary refrigerant is prestored in the air conditioner, wherein when at least one parameter of the density of the secondary refrigerant and the current temperature of the secondary refrigerant is changed, the concentration of the secondary refrigerant is different. And if the air conditioner judges that the target density is greater than the preset density threshold value and the current temperature meets the preset temperature range, determining the target concentration of the target secondary refrigerant according to the current temperature, the target density and the second incidence relation.
Step 204: and determining air conditioning parameters according to the target concentration.
In the embodiment of the application, the air conditioner determines air conditioner parameters according to the target concentration of the target secondary refrigerant, and the air conditioner parameters comprise the anti-freezing junction temperature, the low-pressure protection pressure and the minimum water temperature threshold of the air conditioner.
Step 205: and controlling the air conditioner to operate according to the air conditioner parameters.
In the embodiment of the application, after the air conditioner determines various parameters, the air conditioner is controlled to operate according to the air conditioner parameters.
In the application, the air conditioner can determine the current temperature and the target density according to the target type of the target secondary refrigerant, then determine the target concentration according to the current temperature and the target density, finally determine the air conditioner parameters according to the target concentration, and control the air conditioner to operate according to the air conditioner parameters. The air conditioner in the application can be suitable for various secondary refrigerants, a user does not need to carry out remark explanation on a manufacturer in advance, the user experience is improved, the air conditioner is also suitable for various industries and occasions, various scenes can be comprehensively met under various conditions, and the application range of the air conditioner is enlarged. The method and the device can also automatically determine the air conditioner parameters according to the secondary refrigerant, and a manufacturer does not need to reconfigure the air conditioner parameters according to the user requirements, so that the manufacturing procedures of the manufacturer are saved, and the production efficiency of the manufacturer is improved.
As an optional implementation, the air conditioning parameter includes a minimum water temperature threshold, and determining the air conditioning parameter according to the target concentration includes: determining the target freezing temperature of the target secondary refrigerant according to the target concentration; and determining a lowest water temperature range according to the target freezing temperature, wherein the lowest water temperature value in the lowest water temperature range is higher than the target freezing temperature, and the lowest water temperature range is used for air conditioner inlet water or air conditioner outlet water.
In the embodiment of the application, the air conditioner parameters comprise a minimum water temperature threshold, a third correlation between the concentration of the target secondary refrigerant and the freezing temperature is prestored in the air conditioner, and after the target concentration of the target secondary refrigerant is obtained by the air conditioner, the target freezing temperature of the target secondary refrigerant can be determined according to the third correlation. The target freezing temperature is the temperature at which the target coolant in liquid or gaseous form freezes.
The target secondary refrigerant is frozen to cause the freezing damage of the heat exchange shell tube, so that the air conditioner cannot normally operate, and therefore the minimum water temperature range of the target secondary refrigerant needs to be set. The lowest water temperature value in the lowest water temperature range is higher than the target freezing temperature, so that any temperature value in the lowest water temperature range is higher than the target freezing temperature, and under the condition that the current water temperature of the air conditioner is in the lowest water temperature range, the target secondary refrigerant in the air conditioner cannot be frozen, so that the operation safety of the air conditioner is ensured. The lowest water temperature range can be used for air conditioner water inlet or air conditioner water outlet, and the current water temperature comprises the current water inlet temperature of the air conditioner or the current water outlet temperature of the air conditioner.
As an optional embodiment, after determining the minimum water temperature range according to the target freezing temperature, the method further comprises: determining at least one water temperature threshold in the lowest water temperature range, and acquiring the current water temperature of the air conditioner after a preset time length; and adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and at least one water temperature threshold value.
In the embodiment of the application, as the air conditioner water temperature in the prior art is extracted and set by a manufacturer according to the requirements of users, the air conditioner water temperature is associated with the air conditioner operation frequency, the air conditioner operation frequency is associated with the air conditioner compressor, the air conditioner water temperature set by the manufacturer is within the standard water temperature range, the air conditioner operation frequency is also within the standard frequency range, the operation of the air conditioner compressor is safe and reliable, and the compressor cannot be damaged.
And in this application, the current temperature of air conditioner is not set for well in advance, probably can appear the temperature and cross lowly to reach the freezing point and lead to the condition that air conditioner heat transfer shell and tube damaged and then the unable normal operating of air conditioner. The lowest water temperature range of the air conditioner comprises at least one water temperature threshold value, specifically comprises the lowest anti-freezing shutdown temperature, the lowest frequency limiting temperature and the lowest frequency reducing temperature, after the air conditioner is started for a preset time, the air conditioner runs in a stable state, the air conditioner obtains the current water temperature, then the running frequency of the air conditioner is adjusted according to the current water temperature of the air conditioner and the at least one water temperature threshold value, and the current water temperature is adjusted according to the running frequency of the air conditioner.
As an alternative embodiment, the water temperature threshold includes a lowest anti-freezing shutdown temperature, a lowest frequency limiting temperature and a lowest frequency reduction temperature, the lowest frequency limiting temperature is higher than the lowest frequency reduction temperature, the lowest frequency reduction temperature is higher than the lowest anti-freezing shutdown temperature, and adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold includes:
when the current water temperature of the air conditioner is higher than the lowest freezing prevention shutdown temperature and lower than or equal to the lowest frequency reduction temperature, the current water temperature is too low at the moment and is easy to reach the freezing temperature, so that the operation frequency of the air conditioner is reduced to improve the current water temperature.
When the current water temperature of the air conditioner is greater than the lowest frequency reduction temperature and less than or equal to the lowest frequency limit temperature, the current water temperature is indicated to be appropriate at the moment, the water temperature cannot be too high or cannot easily reach the freezing temperature, and the current running frequency of the air conditioner is maintained.
When the current water temperature of the air conditioner is higher than the lowest limit frequency temperature, the air conditioner determines the current time, then the preset time is prolonged based on the current time to obtain the target time, the air conditioner determines the target operation frequency of the air conditioner according to the load capacity of the compressor at the target time, and then the air conditioner is operated according to the target operation frequency at the target time.
When the current water temperature of the air conditioner is less than or equal to the lowest freezing-prevention shutdown temperature, the current water temperature is too low, the potential danger of freezing and cracking of the shell and tube exists, damage can be caused to the air conditioner, the air conditioner maintains the current operation frequency of the air conditioner, then freezing-prevention shutdown processing is carried out, normal heat exchange of the shell and tube can be guaranteed when the air conditioner works next time, the shell and tube operates reliably, and the air conditioner is in the optimal working state.
This application is through the current temperature of air conditioner and the relation of temperature threshold value, thereby adjusts current temperature through adjusting air conditioner operating frequency, and accurate control temperature avoids the temperature to hang down excessively to cause the damage to heat transfer shell and tube, guarantees that the compressor is in normal condition. When the current water temperature is too low, the machine is stopped in time, frost cracking of the heat exchange shell tube is avoided, and the operation reliability of the air conditioner is improved.
Optionally, an embodiment of the present application further provides a processing flow chart of an air conditioner parameter determining method, as shown in fig. 3, the specific steps are as follows.
Step 1: and acquiring the target type and the current temperature of the target secondary refrigerant.
Step 2: and determining the target density of the target refrigerating medium according to the target type.
And step 3: and under the condition that the target density is larger than the preset density threshold value and the current secondary refrigerant temperature meets the preset temperature range, determining the target concentration of the target secondary refrigerant according to the current temperature and the target density.
And 4, step 4: and determining the target freezing temperature of the target secondary refrigerant according to the target concentration.
And 5: and determining the lowest water temperature range according to the target freezing temperature.
Step 6: and determining the lowest anti-freezing shutdown temperature, the lowest frequency limiting temperature and the lowest frequency reducing temperature in the lowest water temperature range, and executing at least one of the steps 7 to 10 according to the current water temperature.
And 7: and when the current water temperature of the air conditioner is greater than the lowest freezing prevention shutdown temperature and less than or equal to the lowest frequency reduction temperature, reducing the operation frequency.
And 8: and when the current water temperature of the air conditioner is greater than the lowest frequency reduction temperature and less than or equal to the lowest frequency limit temperature, maintaining the current running frequency.
And step 9: when the current water temperature of the air conditioner is higher than the lowest limit frequency temperature, the air conditioner determines the current moment, and determines the target operation frequency according to the load capacity of the compressor at the target moment.
Step 10: and when the current water temperature of the air conditioner is less than or equal to the lowest freezing prevention shutdown temperature, performing freezing prevention shutdown treatment.
Illustratively, the user sets the type of the coolant to be methanol solution low-temperature coolant, the air conditioner obtains the current temperature T0 of the methanol solution low-temperature coolant and the pre-stored density ρ of the methanol solution low-temperature coolant, and when the density ρ of the methanol solution low-temperature coolant is greater than a preset density threshold value and the current temperature T0 meets a preset temperature range Y, the air conditioner determines the concentration L of the methanol solution low-temperature coolant according to the corresponding relationship among the density of the coolant, the current temperature and the concentration of the coolant. The air conditioner determines the freezing temperature P of the methanol solution low-temperature secondary refrigerant according to the corresponding relation between the concentration and the freezing temperature of the secondary refrigerant, determines the lowest water temperature range T2 according to the freezing temperature P, and determines the anti-freezing temperature Tf1 and the low-pressure protection pressure Y1 according to the freezing temperature P, wherein the lowest water temperature range T2, the anti-freezing temperature Tf1 and the low-pressure protection pressure Y1 all belong to air conditioner parameters H1. Then the lowest anti-freeze shutdown temperature TP, the lowest frequency-limited temperature TD and the lowest down-conversion temperature TL in the lowest water temperature range T2 are set. The air conditioner obtains the current water temperature T1, and when TD is more than or equal to T1 and more than TP, the operation frequency is reduced; when TL is more than or equal to T1 and is more than TD, maintaining the current operating frequency; when T1 is greater than TL, determining a target operation frequency according to the load capacity of the compressor; and when T1 is less than or equal to TP, performing freeze-proof shutdown treatment.
Based on the same technical concept, the embodiment of the present application further provides an air conditioner parameter determining module, as shown in fig. 3, the module includes:
an obtaining module 301, configured to obtain a current temperature and a target type of a target secondary refrigerant, where the target secondary refrigerant is a substance currently existing in an air conditioner and used for evaporative cooling;
a first determining module 302, configured to determine a target density of a target coolant according to a target type;
a second determining module 303, configured to determine a target concentration of the target secondary refrigerant according to the target density and the current temperature when it is determined that the target density is greater than the preset density threshold and the current temperature meets the preset temperature range;
a third determining module 304, configured to determine an air conditioning parameter according to the target concentration;
and a fourth determining module 305, configured to control an air conditioner to operate according to the air conditioner parameter.
Optionally, the air conditioning parameter includes a minimum water temperature threshold, and the fourth determining module 304 includes:
the first determining unit is used for determining the target freezing temperature of the target secondary refrigerant according to the target concentration;
and the second determination unit is used for determining a lowest water temperature range according to the target freezing temperature, wherein the lowest water temperature value in the lowest water temperature range is higher than the target freezing temperature, and the lowest water temperature range is used for air conditioner inlet water or air conditioner outlet water.
Optionally, the apparatus further comprises:
the fifth determining module is used for determining at least one water temperature threshold in the lowest water temperature range and acquiring the current water temperature of the air conditioner after a preset time length;
and the adjusting module is used for adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and at least one water temperature threshold value.
Optionally, the water temperature threshold comprises a minimum anti-freeze shutdown temperature and a minimum de-icing temperature, and the adjustment module comprises:
and the reducing unit is used for reducing the running frequency of the air conditioner under the condition that the current water temperature of the air conditioner is greater than the lowest freezing prevention shutdown temperature and less than or equal to the lowest frequency reduction temperature so as to improve the current water temperature of the air conditioner.
Optionally, the water temperature threshold includes a lowest frequency limit temperature and a lowest frequency limit temperature, and the adjusting module includes:
and the maintaining module is used for maintaining the current operating frequency of the air conditioner under the condition that the current water temperature of the air conditioner is greater than the lowest frequency reduction temperature and less than or equal to the lowest frequency limit temperature.
Optionally, the water temperature threshold comprises a lowest frequency limit temperature, and the adjusting module comprises:
the third determining unit is used for determining the current moment under the condition that the current water temperature of the air conditioner is greater than the lowest limit frequency temperature;
the obtaining unit is used for obtaining a target time after prolonging a preset time length based on the current time;
the fourth determining unit is used for determining the target operating frequency of the air conditioner according to the load capacity of the compressor of the air conditioner at the target moment;
and the operation unit is used for operating the air conditioner at the target moment according to the target operation frequency.
Optionally, the water temperature threshold comprises a minimum anti-freeze shutdown temperature, and the adjustment module comprises:
and the shutdown module is used for maintaining the current running frequency of the air conditioner and performing shutdown treatment on the air conditioner under the condition that the current water temperature of the air conditioner is less than or equal to the lowest freeze-proof shutdown temperature.
According to another aspect of the embodiments of the present application, there is provided an air conditioner, as shown in fig. 4, including a memory 403, a processor 401, a communication interface 402, and a communication bus 404, where the memory 403 stores therein a computer program that is executable on the processor 401, the memory 403 and the processor 401 communicate through the communication interface 402 and the communication bus 404, and the processor 401 implements the steps of the method when executing the computer program.
The memory and the processor in the air conditioner communicate with the communication interface through a communication bus. The communication bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc.
The Memory may include a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
There is also provided, in accordance with yet another aspect of an embodiment of the present application, a computer-readable medium having non-volatile program code executable by a processor.
Optionally, in an embodiment of the present application, a computer readable medium is configured to store program codes for the processor to execute the above method:
optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment is not described herein again.
When the embodiments of the present application are specifically implemented, reference may be made to the above embodiments, and corresponding technical effects are achieved.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk. It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for controlling operation of an air conditioner, the method comprising:
acquiring the current temperature and the target type of a target secondary refrigerant, wherein the target secondary refrigerant is a substance which exists in an air conditioner at present and is used for evaporative refrigeration;
determining the target density of the target secondary refrigerant according to the target type;
under the condition that the target density is larger than a preset density threshold value and the current temperature meets a preset temperature range, determining the target concentration of the target secondary refrigerant according to the target density and the current temperature;
determining air conditioner parameters according to the target concentration;
and controlling the air conditioner to operate according to the air conditioner parameters.
2. The method of claim 1, wherein the air conditioning parameter comprises a minimum water temperature threshold, and wherein determining an air conditioning parameter based on the target concentration comprises:
determining a target freezing temperature of the target secondary refrigerant according to the target concentration;
and determining the lowest water temperature range according to the target freezing temperature, wherein the lowest water temperature value in the lowest water temperature range is higher than the target freezing temperature, and the lowest water temperature range is used for air conditioner inlet water or air conditioner outlet water.
3. The method of claim 2, wherein after determining the minimum water temperature range from the target icing temperature, the method further comprises:
determining at least one water temperature threshold in the lowest water temperature range, and acquiring the current water temperature of the air conditioner after a preset time length;
and adjusting the operating frequency of the air conditioner according to the current water temperature of the air conditioner and the at least one water temperature threshold value.
4. The method of claim 3, wherein the water temperature thresholds include a minimum anti-freeze shutdown temperature and a minimum de-frequent temperature, and wherein adjusting the operating frequency of the air conditioner based on the current water temperature of the air conditioner and the at least one water temperature threshold comprises:
and under the condition that the current water temperature of the air conditioner is greater than the lowest anti-freezing shutdown temperature and less than or equal to the lowest frequency reduction temperature, reducing the operation frequency of the air conditioner so as to improve the current water temperature of the air conditioner.
5. The method of claim 3, wherein the water temperature thresholds include a lowest frequency limit temperature and a lowest frequency limit temperature, and wherein adjusting the operating frequency of the air conditioner based on the current water temperature of the air conditioner and the at least one water temperature threshold comprises:
and maintaining the current operating frequency of the air conditioner under the condition that the current water temperature of the air conditioner is greater than the lowest frequency reduction temperature and less than or equal to the lowest frequency limit temperature.
6. The method of claim 3, wherein the water temperature threshold comprises a lowest frequency limit temperature, and wherein adjusting the operating frequency of the air conditioner based on the current water temperature of the air conditioner and the at least one water temperature threshold comprises:
determining the current time under the condition that the current water temperature of the air conditioner is greater than the lowest limit frequency temperature;
based on the current time, a preset time length is prolonged to obtain a target time;
determining the target operation frequency of the air conditioner according to the load capacity of the compressor of the air conditioner at the target moment;
and operating the air conditioner according to the target operation frequency at the target moment.
7. The method of claim 3, wherein the water temperature threshold comprises a minimum anti-freeze shutdown temperature, and wherein adjusting the operating frequency of the air conditioner based on the current water temperature of the air conditioner and the at least one water temperature threshold comprises:
and maintaining the current operating frequency of the air conditioner and performing air conditioner shutdown treatment under the condition that the current water temperature of the air conditioner is less than or equal to the lowest freeze-proof shutdown temperature.
8. The utility model provides a control module group of air conditioner operation which characterized in that, the module includes:
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring the current temperature and the target type of a target secondary refrigerant, and the target secondary refrigerant is a substance which exists in an air conditioner at present and is used for evaporative refrigeration;
the first determination module is used for determining the target density of the target secondary refrigerant according to the target type;
the second determination module is used for determining the target concentration of the target secondary refrigerant according to the target density and the current temperature under the condition that the target density is larger than a preset density threshold value and the current temperature meets a preset temperature range;
the third determining module is used for determining air conditioner parameters according to the target concentration;
and the fourth determination module is used for controlling the air conditioner to operate according to the air conditioner parameters.
9. An air conditioner is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 1 to 7 when executing a program stored in the memory.
10. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.
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