CN113899039A - Air conditioning device, control method, electronic equipment and storage medium - Google Patents
Air conditioning device, control method, electronic equipment and storage medium Download PDFInfo
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- CN113899039A CN113899039A CN202111231466.9A CN202111231466A CN113899039A CN 113899039 A CN113899039 A CN 113899039A CN 202111231466 A CN202111231466 A CN 202111231466A CN 113899039 A CN113899039 A CN 113899039A
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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
- F24F5/0035—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 evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- 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
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Abstract
The embodiment of the application provides an air conditioning device, a control method, electronic equipment and a storage medium, and relates to the technical field of air conditioners. The device comprises temperature and humidity sensors which are arranged at an air supply outlet, an air return inlet and a fresh air inlet and are used for obtaining air state parameters; the fresh air valve, the air mixing valve and the exhaust valve are respectively and correspondingly arranged at the fresh air port, the air mixing port and the exhaust port and are used for adjusting the circulating air quantity at the corresponding positions; the evaporative cooling module controls the air supply temperature according to the water spray quantity; and the controller is in communication connection with the temperature and humidity sensor, the fresh air valve, the air mixing valve, the exhaust valve and the evaporative cooling module, logically controls the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to air state parameters and temperature and humidity control target parameters input by a user, logically controls the water spraying amount of the evaporative cooling module, and solves the problem that the air supply temperature and the air supply humidity cannot be accurately controlled simultaneously in the conventional method.
Description
Technical Field
The present disclosure relates to the field of air conditioning technologies, and in particular, to an air conditioning device, a control method, an electronic device, and a storage medium.
Background
The cooling energy consumption of the data center is high and accounts for about 30% of the total energy consumption of the data center, and the evaporative cooling utilizes dry air energy for refrigeration, so that the high-energy-efficiency cooling of the data center can be realized. The direct evaporative cooling air conditioner is a technology for directly sending outdoor fresh air into a data machine room for refrigeration after filtration and evaporative cooling temperature reduction, and the existing direct evaporative cooling air conditioner has four operation modes, namely a direct ventilation mode, an evaporative cooling mode, a mixed ventilation heating mode and a mixed ventilation heating and humidifying mode, but cannot accurately control the air supply temperature and humidity simultaneously due to continuous change of fresh air temperature and humidity and heat productivity of the data machine room.
Disclosure of Invention
An object of the embodiments of the present application is to provide an air conditioning apparatus, a control method, an electronic device, and a storage medium, so as to solve the problem that the temperature and humidity of the supplied air cannot be accurately controlled at the same time in the existing method.
An embodiment of the present application provides an air conditioning device, the device includes:
the temperature and humidity sensors are arranged at the air supply outlet, the air return inlet and the fresh air inlet and are used for acquiring air state parameters at corresponding positions;
the fresh air valve, the air mixing valve and the exhaust valve are respectively and correspondingly arranged at the fresh air port, the air mixing port and the exhaust port and are used for adjusting the circulating air quantity at the corresponding positions;
the evaporative cooling module is used for adjusting the water spraying amount and performing water diversion, evaporation and cooling so as to control the air supply temperature according to the water spraying amount;
and the controller is in communication connection with the temperature and humidity sensor, the fresh air valve, the air mixing valve, the exhaust valve and the evaporative cooling module, and is used for performing logic control on the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air state parameters and the temperature and humidity control target parameters input by a user, and performing logic control on the water spray quantity of the evaporative cooling module.
In the implementation process, the temperature and the humidity of the air supply are simultaneously controlled to target values, so that the accuracy of control parameters is improved, the stable consistency of air supply temperature and humidity control is realized, and the influence of air supply temperature and humidity changes is reduced; the air valve control and the water spray amount control of the evaporative cooling module are decoupled, and the air valve control and the evaporative cooling module are not influenced mutually any more, so that the control process is more stable, and a better control effect is achieved.
Further, the apparatus further comprises:
and the air feeder is in communication connection with the controller so as to adjust the rotating speed according to the air state parameters of the air supply outlet and the air return inlet.
In the implementation process, the air quantity and the pressure of the air supply outlet are changed by controlling the rotating speed of the air supply blower.
An embodiment of the present application further provides a control method of an air conditioning device, where the method is applied to the controller, and the method includes:
receiving air state parameters sent by temperature and humidity sensors at an air supply outlet and an air return outlet;
logically controlling the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air state parameters and the temperature and humidity control target parameters input by a user;
and logically controlling the water spraying amount of the evaporative cooling module according to the air state parameters and the temperature and humidity control target parameters input by a user so as to control the air supply temperature according to the water spraying amount.
In the implementation process, the temperature and humidity control parameters input by a user are used as temperature and humidity control target parameters, namely, the temperature and the humidity of the air supply are simultaneously controlled to target values, so that the accuracy of the control parameters is improved, the stable consistency of the temperature and the humidity control of the air supply is realized, and the influence of the temperature and the humidity change of the air supply is reduced; the air valve control and the water spray amount control of the evaporative cooling module are decoupled, and the air valve control and the evaporative cooling module are not influenced mutually any more, so that the control process is more stable, and a better control effect is achieved.
Further, the air state parameters include air dry bulb temperature and relative humidity of the air supply outlet, and the logical control of the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve is performed according to the air state parameters and the temperature and humidity control target parameters input by the user, and the logical control includes:
calculating the air enthalpy value of the air supply outlet according to the air dry bulb temperature and the relative humidity of the air supply outlet;
calculating according to the air supply dry bulb temperature control target value and the relative humidity control target value input by the user to obtain an air supply enthalpy value control target value;
and logically controlling the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air enthalpy value of the air supply outlet and the air supply enthalpy value control target value so as to control the air supply enthalpy values of the fresh air valve, the air mixing valve and the exhaust valve.
In the implementation process, the ventilation volume is adjusted by logically controlling the fresh air valve, the air mixing valve and the exhaust valve and taking the air supply enthalpy value as a control target.
Further, the logic control is performed on the air mixing ratio of the fresh air valve, the air mixing valve and the exhaust valve according to the air enthalpy value of the air supply opening and the air supply enthalpy value control target value so as to control the air supply enthalpy values of the fresh air valve, the air mixing valve and the exhaust valve, and the logic control comprises the following steps:
if hs<hss- Δ h, the opening of the mixing valve is increased, and if the mixing valve is already at the maximum opening, the opening of the fresh air valve and/or the exhaust air valve is decreasedDegree;
if hs>hss+ delta h, the opening degree of the fresh air valve and/or the exhaust valve is increased, and if the fresh air valve and the exhaust valve are in the maximum opening degree, the opening degree of the air mixing valve is decreased;
if hss-Δh≤hs≤hss+ Δ h, the fresh air valve, the exhaust air valve and the air mixing valve are not adjusted; wherein h issExpressing air enthalpy of the air supply outlet, hssThe control target value of the air enthalpy value is shown, and the delta h represents the control return difference of the enthalpy value.
In the implementation process, the control of the fresh air valve, the air mixing valve and the exhaust valve is realized according to the relationship between the air enthalpy value of the air supply outlet and the control target value of the air supply enthalpy value, so that the air mixing ratio is adjusted.
Further, the logically controlling the water spraying amount of the evaporative cooling module according to the air state parameter and the temperature and humidity control target parameter input by the user to control the air supply temperature according to the water spraying amount includes:
and logically controlling the water spraying amount of the evaporative cooling module according to the air dry bulb temperature of the air supply outlet and the air dry bulb temperature control target value so as to control the air supply temperature according to the water spraying amount.
In the implementation process, the cooling capacity of the evaporative cooling module is adjusted by adjusting the water spray quantity of the evaporative cooling module.
Further, the logic control of the water spray amount of the evaporative cooling module according to the air dry bulb temperature of the air supply outlet and the air dry bulb temperature control target value to control the air supply temperature according to the water spray amount includes:
if Ts<Tss- Δ T1, then the amount of water spray of the evaporative cooling module is adjusted down;
if Ts>Tss+ Δ T1, increasing the water injection amount of the evaporative cooling module;
if Tss-ΔT1≤Ts≤Tss+ Δ T1, the amount of water sprayed by the evaporative cooling module is not adjusted; wherein, TsIndicating the temperature of the air dry bulb at the air supply outlet,TssIndicating a target value of the air supply dry bulb temperature control, and delta T1 indicating a first temperature control return difference; and the time interval between two adjacent water spray quantity adjusting instructions is larger than the time interval between two adjacent water spray quantity adjusting instructions.
In the implementation process, the water spraying amount of the evaporative cooling module is adjusted through the relation between the air dry bulb temperature of the air supply outlet and the control target value of the air supply dry bulb temperature, and the temperature is controlled.
Further, the air state parameter includes wet bulb temperature, and the logical control of the air mixing ratio of the fresh air valve, the air mixing valve and the exhaust valve according to the air state parameter and the temperature and humidity control target parameter input by the user includes:
calculating to obtain an air supply wet bulb temperature control target value according to an air supply dry bulb temperature control target value and a relative humidity control target value input by a user;
and logically controlling the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the wet bulb temperature and the air supply wet bulb temperature control target value so as to control the air supply wet bulb temperature of the fresh air valve, the air mixing valve and the exhaust valve.
In the implementation process, another control mode is provided, namely the air state parameters collected by the temperature and humidity sensor are the dry bulb temperature and the wet bulb temperature, the air supply wet bulb temperature is used as a control target, and the valve body can be controlled according to the wet bulb temperature and the air supply wet bulb temperature control target value.
Further, the logic control is performed on the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the wet bulb temperature and the air supply wet bulb temperature control target value to control the air supply wet bulb temperature of the fresh air valve, the air mixing valve and the exhaust valve, and the logic control comprises the following steps:
if Twbs<Twbss-ΔTwbIf the opening degree of the air mixing valve is in the maximum opening degree, the opening degree of the fresh air valve and/or the exhaust valve is reduced;
if Twbs>Twbss+ΔTwbIf so, the fresh air valve and/or the exhaust air valve are/is enlargedIf the fresh air valve and the exhaust air valve are both in the maximum opening degree, the opening degree of the air mixing valve is reduced;
if Twbss-ΔTwb≤Twbs≤Twbss+ΔTwbIf the fresh air valve, the exhaust valve and the air mixing valve are not adjusted, the fresh air valve, the exhaust valve and the air mixing valve are not adjusted; wherein, TwbsDenotes the wet bulb temperature, TwbssIndicating a supply air wet bulb temperature control target value, Δ TwbIndicating the wet bulb temperature control return difference.
In the implementation process, the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve is logically controlled through the wet bulb temperature and the air supply wet bulb temperature control target value, and the air supply wet bulb temperature is controlled.
Further, the logic control of the water spray amount of the evaporative cooling module according to the air dry bulb temperature of the air supply outlet and the air dry bulb temperature control target value to control the air supply temperature according to the water spray amount includes:
if Ts<Tss- Δ T1, the water injection amount of the evaporative cooling module is reduced by a preset first variation;
if Ts>Tss+ Δ T1, increasing the water spraying amount of the evaporative cooling module, and increasing the water spraying amount to a preset second variation;
if Tss-ΔT1≤Ts≤Tss+ Δ T1, the amount of water sprayed by the evaporative cooling module is not adjusted, and the time interval between two adjacent adjustment commands is kept within a preset time interval value.
In the implementation process, the control of the water spraying amount of the evaporative cooling module is realized by adjusting the valve body of the water valve or the rotating speed of the water pump by the preset amplitude, so that the air supply temperature is adjusted.
Further, the air state parameters comprise air dry bulb temperature of an air return port and air dry bulb temperature of an air supply port, and the method further comprises the following steps:
if (T)r-Ts)<ΔTsrs- Δ T2, the blower speed is reduced;
if (T)r-Ts)>ΔTsrs+ Δ T2, increasing the rotation speed of the blower;
if Δ Tsrs-ΔT2≤(Tr-Ts)≤ΔTsrs+ Δ T2, the rotation speed of the blower is not adjusted, wherein TrIndicates the temperature of the air dry bulb at the air return inlet, TsIndicating the temperature of the air dry bulb, Δ T, of the supply air outletsrsIndicating the return air temperature difference control target value, and Δ T2 indicating the second temperature difference control return difference.
In the implementation process, the rotating speed of the air feeder is adjusted according to the temperature difference between the temperature of the air dry bulb at the air return inlet and the temperature of the air dry bulb at the air supply outlet, so that the air supply quantity and the pressure are adjusted.
An embodiment of the present application further provides an electronic device, where the electronic device includes a memory and a processor, the memory is used for storing a computer program, and the processor runs the computer program to make the electronic device execute the control method of the air conditioning device described in any one of the above.
An embodiment of the present application further provides a readable storage medium, in which computer program instructions are stored, and when the computer program instructions are read and executed by a processor, the computer program instructions execute the control method of the air conditioning device described in any one of the above.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an air conditioning device according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a control method of an air conditioning device according to an embodiment of the present application;
FIG. 3 is a flow chart of damper control provided by an embodiment of the present application;
FIG. 4 is another flow chart of damper control provided by an embodiment of the present application;
fig. 5 is a block diagram of a control device of an air conditioning device according to an embodiment of the present application;
fig. 6 is a block diagram of a control device of another air conditioning device according to an embodiment of the present application.
Icon:
100-a receiving module; 101-fresh air valve; 102-a mixing valve; 103-an exhaust valve; 104-an evaporative cooling module; 105-a blower; 106-air supply outlet; 107-air return inlet; 108-air supply temperature and humidity sensor; 109-return air temperature and humidity sensor; 110-fresh air temperature and humidity sensor; 111-a controller; 200-a damper control module; 210-a first control module; 211-enthalpy calculation module; 212-a first target value calculation module; 213-air supply enthalpy control module; 220-a second control module; 221-a second target value calculation module; 222-an air supply wet bulb temperature control module; 300-a water spray amount control module; 400-a blower control module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of an air conditioning device according to an embodiment of the present disclosure. The device specifically is direct evaporative cooling air conditioner, can be applied to data computer lab information equipment's temperature humidity control, can realize the accurate regulation and control to the humiture of air supply simultaneously. The device may specifically comprise the following structure:
an air supply temperature and humidity sensor 108 is arranged at the air supply outlet 106 and used for detecting air state parameters at the air supply outlet 106; a return air temperature and humidity sensor 109 is arranged at the return air inlet 107 and used for detecting air state parameters at the return air inlet 107; the fresh air temperature and humidity sensor 110 is arranged at the fresh air inlet and used for detecting air state parameters such as air dry bulb temperature and relative humidity at the fresh air inlet.
The fresh air inlet is provided with a fresh air valve 101, the air mixing inlet is provided with an air mixing valve 102, the air outlet is provided with an exhaust valve 103, wherein the air mixing inlet is positioned between an air supply chamber where the fresh air inlet is positioned and an exhaust chamber where the exhaust outlet is positioned, so that outdoor fresh air can enter the exhaust chamber through the air mixing inlet after entering. The adjustment of the self circulation resistance and the circulation air quantity is realized by adjusting the valve plates of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103, thereby adjusting the air mixing proportion.
The controller 111, the evaporative cooling module 104, and the blower 105 are also provided in this order in the blower chamber. The air supply temperature and humidity sensor 108, the return air temperature and humidity sensor 109, the fresh air temperature and humidity sensor 110, the fresh air valve 101, the air mixing valve 102, the exhaust valve 103, the evaporative cooling module 104 and the air blower 105 are all in communication connection with the controller 111, and control instructions are sent to the controllers 111 for control.
Wherein, the evaporation cooling module 104 can adjust the water spray volume according to the control command that controller 111 issued, and evaporation cooling module 104 not only includes water spray structures such as water pump and nozzle still including packing, and consequently the accessible is adjusted the regulation that the water pump realized the water supply volume, and moisture evaporates in packing and can play the cooling humidification effect to the air, and consequently, evaporation cooling module 104 can be used to adjust the water spray volume and have the evaporation cooling function, consequently can adjust air supply temperature according to the water spray volume.
The air supply temperature and humidity sensor 108, the return air temperature and humidity sensor 109 and the fresh air temperature and humidity sensor 110 send detected air state parameters to the controller 111, and the controller 111 can perform logic control on the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the received air state parameters and temperature and humidity control target parameters input by a user, so that the temperature and humidity control is realized.
The blower 105 may adjust the rotation speed according to the adjustment command issued by the controller 111 to achieve the adjustment of the blowing air volume and pressure.
Other components in the direct evaporative cooling air conditioner, such as a filter, a silencer, an exhaust fan, etc., are all in the prior art, and are not described in detail herein.
Example 2
An embodiment of the present application provides a control method of an air conditioning device, which is applied to the controller 111 in embodiment 1, and as shown in fig. 2, is a flowchart of the control method of the air conditioning device, and the method specifically includes the following steps:
step S100: receiving air state parameters sent by temperature and humidity sensors at an air supply outlet 106 and an air return outlet 107;
step S200: logically controlling the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the air state parameters and the temperature and humidity control target parameters input by a user;
step S300: and logically controlling the water spraying amount of the evaporative cooling module 104 according to the air state parameters and the temperature and humidity control target parameters input by the user, so as to control the air supply temperature according to the water spraying amount.
The temperature and humidity control target parameters input by a user are used as control objects and reach target values set by the user, so that accurate control of the temperature and the humidity is achieved, the influence of fresh air on temperature and humidity changes is reduced, and the problem that the air supply temperature and the humidity cannot be accurately controlled simultaneously in the existing method is solved.
As one embodiment of the control of the air valve, as shown in fig. 3, a flow chart for controlling the air valve is provided, and the step may specifically include:
step S211: calculating the air enthalpy value of the air supply outlet according to the air dry bulb temperature and the relative humidity of the air supply outlet 106;
step S212: calculating according to the air supply dry bulb temperature control target value and the relative humidity control target value input by the user to obtain an air supply enthalpy value control target value;
step S213: and logically controlling the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the air enthalpy value of the air supply outlet and the air supply enthalpy value control target value so as to control the air supply enthalpy values of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103.
The air condition parameters may include the temperature and relative humidity of the dry air bulb of the supply air outlet, and the controller 111 may obtain the temperature T of the dry air bulb of the supply air outlet according to the temperature and humidity of the supply air collected by the supply air temperature and humidity sensor 108sAnd relative humidity RHsReal-time calculation of air enthalpy h at the supply air outlet 106s;
The controller 111 receives the air supply dry bulb temperature control target value T input by the userssAnd relative humidity control target value RHssAnd controlling the target value T according to the received temperature of the air supply dry bulbssAnd relative humidity control target value RHssCalculating to obtain a control target value h of the air supply enthalpy valuess。
In this embodiment, the air supply enthalpy is controlled to a control target value h of the air supply enthalpyssAs a control target, the valve plates of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 are adjusted to realize the adjustment of the self circulation resistance and the circulation air quantity of the valve body, thereby controlling the air mixing ratio to achieve the control target value h of the air supply enthalpy valuessThe specific control process is as follows:
if hs<hssΔ h, the controller 111 sends a control command to increase the opening degree of the air mixing valve 102, and decrease the opening degrees of the fresh air valve 101 and the exhaust air valve 103 if the air mixing valve 102 is in the maximum opening state;
if hs>hss+ Δ h, the controller 111 sends a control instruction to increase the opening degree of the fresh air valve 101 and/or the exhaust valve 103, and if the fresh air valve 101 and the exhaust valve 103 are both at the maximum opening degree, the opening degree of the air mixing valve 102 is decreased;
if hss-Δh≤hs≤hss+ Δ h, the controller 111 does not send a control command, that is, the fresh air valve 101, the exhaust air valve 103 and the air mixing valve 102 are not adjusted; wherein Δ h represents the enthalpy control return difference, and the magnitude thereof can be preset according to the requirement, and is not limited at all.
For the control of the evaporative cooling module 104, the water spraying amount of the evaporative cooling module 104 is logically controlled according to the air dry-bulb temperature of the air supply outlet and the air dry-bulb temperature control target value, and the evaporative cooling capacity of the evaporative cooling module 104 is adjusted by controlling the water spraying amount, so that the air supply temperature is controlled according to the water spraying amount. The amount of water sprayed by the evaporative cooling module 104 is controlled, so as to control the temperature of the supplied air, and the control process is as follows:
if Ts<Tss- Δ T1, the controller 111 sends a control command to turn down the amount of water sprayed by the evaporative cooling module 104;
if Ts>Tss+ Δ T1, the controller 111 sends a control command to increase the amount of water sprayed by the evaporative cooling module 104;
if Tss-ΔT1≤Ts≤Tss+ Δ T1, the controller 111 does not send a control command, i.e., does not adjust the amount of water sprayed by the evaporative cooling module 104; where Δ T1 represents the first temperature control return difference.
It should be noted that, the Time interval of Time _ TXPS is maintained between two adjacent water spray reduction commands, and the Time interval of Time _ TDPS is maintained between two adjacent water spray reduction commands, then Time _ TXPS > Time _ TDPS, and the values of the set values of Time _ TXPS and Time _ TDPS are not limited in any way.
And for the two adjacent instructions of increasing and decreasing or the two adjacent instructions of decreasing and increasing, no time interval requirement is set, and the instructions can be directly sent for adjustment.
According to the method and the device, the temperature and the humidity of the air supply can be controlled to the target values simultaneously, so that the air supply parameters are more accurate, and the reliability of the operation of the data machine room information equipment is improved; moreover, the influence from the change of the fresh air temperature and humidity can be reduced by stably controlling the temperature and humidity; in addition, the air valve control logic of the direct evaporative cooling air conditioner and the control of the water spraying amount of the evaporative cooling module 104 are logically decoupled, so that the control of the air valve control logic and the control of the evaporative cooling module 104 are not influenced mutually any more, the stability of the control process is improved, and the control effect is enhanced.
The air state parameters can also include air return port air dry bulbThe temperature and the temperature of the air dry bulb of the air supply outlet are detected by the controller 111 according to the temperature T of the air dry bulb of the air supply outlet collected by the air supply temperature and humidity sensor 108sAnd the temperature T of the air dry bulb at the air return port 107rThe blower 105 is controlled to regulate the blowing air quantity and pressure, and the specific control logic is as follows:
if (T)r-Ts)<ΔTsrs- Δ T2, the speed of the blower 105 is reduced;
if (T)r-Ts)>ΔTsrs+ Δ T2, the rotation speed of the blower 105 is increased;
if Δ Tsrs-ΔT2≤(Tr-Ts)≤ΔTsrs+ Δ T2, the rotation speed of the blower 105 is not adjusted, where Δ TsrsIndicating the return air temperature difference control target value set by the user, and Δ T2 indicating the second temperature difference control return difference.
Example 3
In another embodiment, in addition to embodiment 1, the air condition parameters further include the wet bulb temperature of the air supply outlet, and in this case, the control of each air supply outlet is to realize the control of the wet bulb temperature of the air supply and to eliminate the need to calculate the enthalpy value of the air supply. As shown in fig. 4, another air valve control flow chart specifically includes the following steps:
step S221: calculating to obtain an air supply wet bulb temperature control target value according to an air supply dry bulb temperature control target value and a relative humidity control target value input by a user;
step S222: and logically controlling the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the air supply outlet wet bulb temperature and the air supply wet bulb temperature control target value so as to control the air supply wet bulb temperature of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103.
The controller 111 receives the air supply dry bulb temperature control target value T input by the userssAnd relative humidity control target value RHssAnd controlling the target value T according to the temperature of the air supply dry bulbssAnd relative humidity control target value RHssCalculating to obtain a target value T for controlling the temperature of the air supply wet bulbwbss。
Then using the air supply wet ballTarget value T of temperature controlwbssFor the control purpose, the temperature T of the wet bulb of the air at the air supply outlet 106 is acquired by an air supply temperature and humidity sensor 108wbsAnd valve plates of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 are controlled. As another implementation, the supply air wet bulb temperature control target value TwbssThe input can also be directly performed by the user, in this case, the controller 111 is not needed to calculate the value, and the fresh air valve 101, the air mixing valve 102 and the exhaust air valve 103 can be directly controlled logically according to the value input by the user, and the specific control process is as follows:
if Twbs<Twbss-ΔTwbThe controller 111 sends a control instruction to increase the opening degree of the air mixing valve 102, and if the opening degree of the air mixing valve 102 is already at the maximum opening degree, the opening degree of the fresh air valve 101 and/or the exhaust valve 103 is decreased;
if Twbs>Twbss+ΔTwbIf the fresh air valve 101 and the exhaust valve 103 are both in the maximum opening degree, the opening degree of the air mixing valve 102 is reduced;
if Twbss-ΔTwb≤Twbs≤Twbss+ΔTwbIf the air volume is larger than the preset air volume, the controller 111 does not send a control instruction, that is, the fresh air valve 101, the exhaust air valve 103 and the air mixing valve 102 are not adjusted; wherein, Delta TwbIndicating the wet bulb temperature control return difference.
The control of the evaporative cooling module 104 and the blower 105 is the same as in embodiment 1, and will not be described again.
Example 4
When the purpose of reducing the cost of the air conditioner is achieved, the fresh air valve 101 or the exhaust air valve 103 in the direct evaporation air conditioner can be eliminated (only one of the fresh air valve and the exhaust air valve can be eliminated), and the control logic of the air valve is as follows:
if hs<hssΔ h, the opening degree of the air mixing valve 102 is increased, and if the air mixing valve 102 is at the maximum opening degree, the opening degree of the fresh air valve 101 or the exhaust air valve 103 is decreased;
if hs>hss+ Δ h, the opening degree of the fresh air valve 101 or the exhaust valve 103 is increased, and if the fresh air valve 101 or the exhaust valve 103 is in the maximum opening degree, the opening degree of the air mixing valve 102 is decreased;
if hss-Δh≤hs≤hss+ Δ h, without adjusting the mixing valve 102, the fresh air valve 101 (or the exhaust valve 103); wherein h issExpressing air enthalpy of the air supply outlet, hssThe control target value of the air enthalpy value is shown, and the delta h represents the control return difference of the enthalpy value.
Example 5
In contrast to embodiment 1, for the evaporative cooling module 104, the adjustment range of the amount of water spray can be controlled as follows:
if Ts<Tss- Δ T1, the amount of water sprayed from the evaporative cooling module 104 is reduced by a predetermined first variation, such as PSL1 per reduction of the amount of water sprayed;
if Ts>Tss+ Δ T1, the water injection amount of the evaporative cooling module 104 is increased, and the adjustment range is a preset second variation, for example, the water injection amount is adjusted to a PSL2 in each time;
if Tss-ΔT1≤Ts≤TssThe + Δ T1 is not to adjust the water injection amount of the evaporative cooling module 104, and the Time interval between two adjacent adjustment commands is kept within a preset Time interval value, for example, the Time interval of Time _ PS is kept between two adjacent adjustment commands, the setting of the adjustment range and the Time interval is not limited here, and the adjustment range of the water injection amount can be realized by adjusting the variation of the water pump rotation speed or the variation of the opening of the pipeline valve (water valve), and generally speaking, the manner of adjusting the water pump rotation speed can be adopted, so that a better energy saving effect is achieved.
Example 6
An embodiment of the present application provides a control device of an air conditioning device, as shown in fig. 5, which is a block diagram of a control device of an air conditioning device, and the device includes but is not limited to:
the receiving module 100: receiving air state parameters sent by temperature and humidity sensors at an air supply outlet 106 and an air return outlet 107;
the damper control module 200: logically controlling the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the air state parameters and the temperature and humidity control target parameters input by a user;
water spray amount control module 300: and logically controlling the water spraying amount of the evaporative cooling module 104 according to the air state parameters and the temperature and humidity control target parameters input by the user, so as to control the air supply temperature according to the water spraying amount.
As shown in fig. 6, which is a block diagram of another control device of an air conditioning device, a control module 200 of a damper includes a first control module 210 and a second control module 220, where the first control module 210 includes:
enthalpy value calculation module 211: calculating the air enthalpy value of the air supply outlet according to the air dry bulb temperature and the relative humidity of the air supply outlet 106;
the first target value calculation module 212: calculating according to the air supply dry bulb temperature control target value and the relative humidity control target value input by the user to obtain an air supply enthalpy value control target value;
air supply enthalpy control module 213: and logically controlling the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the air enthalpy value of the air supply outlet and the air supply enthalpy value control target value so as to control the air supply enthalpy values of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103.
The second control module 220 includes:
the second target value calculation module 221: calculating to obtain an air supply wet bulb temperature control target value according to an air supply dry bulb temperature control target value and a relative humidity control target value input by a user;
supply air wet bulb temperature control module 222: and logically controlling the air mixing proportion of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103 according to the air supply outlet wet bulb temperature and the air supply wet bulb temperature control target value so as to control the air supply wet bulb temperature of the fresh air valve 101, the air mixing valve 102 and the exhaust valve 103.
The detailed control process of the water spray amount control module 300 is not described herein.
In addition, a fan control module 400 is further included, and the specific adjustment process is described in the above embodiment and will not be described herein again.
An embodiment of the present application further provides an electronic device, where the electronic device includes a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the control method of the air conditioning apparatus according to the foregoing embodiment.
The embodiment of the present application further provides a readable storage medium, in which computer program instructions are stored, and when the computer program instructions are read and executed by a processor, the method for controlling an air conditioning device according to the above embodiment is performed.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including 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 method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that, herein, 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.
Claims (13)
1. An air conditioning device, characterized in that the device comprises:
the temperature and humidity sensors are arranged at the air supply outlet, the air return inlet and the fresh air inlet and are used for acquiring air state parameters at corresponding positions;
the fresh air valve, the air mixing valve and the exhaust valve are respectively and correspondingly arranged at the fresh air port, the air mixing port and the exhaust port and are used for adjusting the circulating air quantity at the corresponding positions;
the evaporative cooling module is used for adjusting the water spraying amount and performing water evaporation cooling so as to control the air supply temperature according to the water spraying amount;
and the controller is in communication connection with the temperature and humidity sensor, the fresh air valve, the air mixing valve, the exhaust valve and the evaporative cooling module, and is used for performing logic control on the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air state parameters and the temperature and humidity control target parameters input by a user, and performing logic control on the water spray quantity of the evaporative cooling module.
2. The air conditioning device according to claim 1, characterized in that the device further comprises:
and the air feeder is in communication connection with the controller so as to adjust the rotating speed according to the air state parameters of the air supply outlet and the air return inlet.
3. A control method of an air conditioning apparatus, characterized by being applied to the controller of any one of claims 1-2, the method comprising:
receiving air state parameters sent by a temperature and humidity sensor;
logically controlling the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air state parameters and the temperature and humidity control target parameters input by a user;
and logically controlling the water spraying amount of the evaporative cooling module according to the air state parameters and the temperature and humidity control target parameters input by a user so as to control the air supply temperature according to the water spraying amount.
4. The method according to claim 3, wherein the air condition parameters include a supply air dry bulb temperature and a relative humidity, and the logically controlling the air mixing ratio of the fresh air valve, the air mixing valve and the exhaust air valve according to the air condition parameters and the temperature and humidity control target parameters input by the user comprises:
calculating the air enthalpy value of the air supply outlet according to the air dry bulb temperature and the relative humidity of the air supply outlet;
calculating according to the air supply dry bulb temperature control target value and the relative humidity control target value input by the user to obtain an air supply enthalpy value control target value;
and logically controlling the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air enthalpy value of the air supply outlet and the air supply enthalpy value control target value so as to control the air supply enthalpy values of the fresh air valve, the air mixing valve and the exhaust valve.
5. The control method of an air conditioning apparatus according to claim 4, wherein the logical control of the air mixing ratio of the fresh air valve, the air mixing valve, and the exhaust air valve according to the supply-port air enthalpy value and the supply-air enthalpy value control target value to control the supply-air enthalpy value of the fresh air valve, the air mixing valve, and the exhaust air valve includes:
if hs<hssΔ h, then the opening of the air mixing valve is increasedIf the air mixing valve is in the maximum opening degree, the opening degree of the fresh air valve and/or the exhaust valve is reduced;
if hs>hssIf the fresh air valve and the exhaust valve are both in the maximum opening degree, the opening degree of the air mixing valve is reduced;
if hss-Δh≤hs≤hss+ Δ h, without adjusting the mixing damper, the fresh damper and/or the exhaust damper; wherein h issExpressing air enthalpy of the air supply outlet, hssThe control target value of the air enthalpy value is shown, and the delta h represents the control return difference of the enthalpy value.
6. The method of claim 4, wherein the logically controlling the amount of water sprayed to the evaporative cooling module according to the air state parameter and the target temperature and humidity control parameter input by the user to control the temperature of the air supply according to the amount of water sprayed comprises:
and logically controlling the water spraying amount of the evaporative cooling module according to the air dry bulb temperature of the air supply outlet and the air dry bulb temperature control target value so as to control the air supply temperature according to the water spraying amount.
7. The method of controlling an air conditioning apparatus according to claim 6, wherein the logically controlling the amount of water spray of the evaporative cooling module according to the supply port air dry bulb temperature and the supply air dry bulb temperature control target value to control the supply air temperature according to the amount of water spray includes:
if Ts<Tss- Δ T1, then the amount of water spray of the evaporative cooling module is adjusted down;
if Ts>Tss+ Δ T1, increasing the water injection amount of the evaporative cooling module;
if Tss-ΔT1≤Ts≤Tss+ Δ T1, the amount of water sprayed by the evaporative cooling module is not adjusted; wherein, TsIndicating the temperature of the air dry bulb, T, at the supply air outletssIndicating air supply dry bulb temperature control meshScalar, Δ T1, represents a first temperature control return difference; and the time interval between two adjacent water spray quantity adjusting instructions is larger than the time interval between two adjacent water spray quantity adjusting instructions.
8. The method according to claim 3, wherein the air condition parameter includes a supply-air outlet wet bulb temperature, and the logically controlling the air mixing ratio of the fresh air valve, the air mixing valve, and the exhaust valve according to the air condition parameter and the temperature and humidity control target parameter input by the user comprises:
calculating to obtain an air supply wet bulb temperature control target value according to an air supply dry bulb temperature control target value and a relative humidity control target value input by a user;
and logically controlling the air mixing proportion of the fresh air valve, the air mixing valve and the exhaust valve according to the air supply outlet wet bulb temperature and the air supply wet bulb temperature control target value so as to control the air supply wet bulb temperature of the fresh air valve, the air mixing valve and the exhaust valve.
9. The method of claim 8, wherein the logically controlling the air mixing ratio of the fresh air valve, the air mixing valve, and the exhaust valve according to the wet bulb temperature and the supply wet bulb temperature control target value to control the supply wet bulb temperature of the fresh air valve, the air mixing valve, and the exhaust valve, comprises:
if Twbs<Twbss-ΔTwbIf the opening degree of the air mixing valve is in the maximum opening degree, the opening degree of the fresh air valve and/or the exhaust valve is reduced;
if Twbs>Twbss+ΔTwbIf the fresh air valve and the exhaust valve are both in the maximum opening degree, the opening degree of the air mixing valve is reduced;
if Twbss-ΔTwb≤Twbs≤Twbss+ΔTwbIf the fresh air valve, the exhaust valve and the air mixing valve are not adjusted, the fresh air valve, the exhaust valve and the air mixing valve are not adjusted; wherein, TwbsIndicating the wet bulb temperature, T, of the supply-air outletwbssIndicating a supply air wet bulb temperature control target value, Δ TwbIndicating the wet bulb temperature control return difference.
10. The method of controlling an air conditioning apparatus according to claim 6, wherein the logically controlling the amount of water spray of the evaporative cooling module according to the supply port air dry bulb temperature and the supply air dry bulb temperature control target value to control the supply air temperature according to the amount of water spray includes:
if Ts<Tss- Δ T1, the water injection amount of the evaporative cooling module is reduced by a preset first variation;
if Ts>Tss+ Δ T1, increasing the water spraying amount of the evaporative cooling module, and increasing the water spraying amount to a preset second variation;
if Tss-ΔT1≤Ts≤Tss+ Δ T1, the amount of water sprayed by the evaporative cooling module is not adjusted, and the time interval between two adjacent adjustment commands is kept within a preset time interval value.
11. The control method of an air conditioning apparatus according to claim 3, wherein the air state parameters include a return air inlet air dry bulb temperature and a supply air outlet air dry bulb temperature, the method further comprising:
if (T)r-Ts)<ΔTsrs- Δ T2, the blower speed is reduced;
if (T)r-Ts)>ΔTsrs+ Δ T2, increasing the rotation speed of the blower;
if Δ Tsrs-ΔT2≤(Tr-Ts)≤ΔTsrs+ Δ T2, the rotation speed of the blower is not adjusted, wherein TrIndicates the temperature of the air dry bulb at the air return inlet, TsIndicating the temperature of the air dry bulb, Δ T, of the supply air outletsrsIndicating the return air temperature difference control target value, and Δ T2 indicating the second temperature difference control return difference.
12. An electronic device, characterized in that the electronic device includes a memory for storing a computer program and a processor that runs the computer program to cause the electronic device to execute the control method of the air conditioning apparatus according to any one of claims 3 to 11.
13. A readable storage medium, in which computer program instructions are stored, which, when read and executed by a processor, perform the control method of an air conditioning apparatus according to any one of claims 3 to 11.
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