CN114165885A - Multi-split fresh air system control method and device, air conditioner and storage medium - Google Patents
Multi-split fresh air system control method and device, air conditioner and storage medium Download PDFInfo
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- CN114165885A CN114165885A CN202111554597.0A CN202111554597A CN114165885A CN 114165885 A CN114165885 A CN 114165885A CN 202111554597 A CN202111554597 A CN 202111554597A CN 114165885 A CN114165885 A CN 114165885A
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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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
- F24F2110/12—Temperature of the outside air
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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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- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method and device for a multi-split fresh air system, an air conditioner and a storage medium. The invention provides a control method of a multi-split fresh air system, wherein the multi-split fresh air system comprises a heat exchanger, the heat exchanger comprises an air inlet pipeline and an air outlet pipeline, the air inlet pipeline and the outdoor are connected with an external air inlet valve, the air outlet pipeline and the outdoor are connected with an external air outlet valve, the heat exchanger is also provided with a plurality of indoor room interface modules, each indoor room interface module comprises an inner air inlet connected with the air inlet pipeline and an inner air outlet connected with the air outlet pipeline, the inner air inlet is provided with an inner air inlet valve, and the inner air outlet is provided with an inner air outlet valve; the control method comprises the following steps: acquiring a fresh air demand value and a temperature demand value of each indoor room, and calculating a fresh air demand average value and a temperature demand average value of all indoor rooms; and controlling the opening and closing of all air valves according to the average fresh air demand value and the average temperature demand value so as to ventilate the outdoor and indoor rooms or ventilate among the indoor rooms.
Description
Technical Field
The invention relates to the technical field of air conditioner equipment, in particular to a control method of a multi-split fresh air system.
Background
In the prior art, a traditional fresh air system usually adopts a means of controlling each room in a room to exchange air with the outside to provide fresh air for each room, and the method cannot control the temperature balance among a plurality of rooms through the air exchange among the plurality of indoor rooms. Therefore, how to provide a control method of a fresh air system for realizing air exchange among a plurality of rooms becomes an urgent problem to be solved.
Disclosure of Invention
The invention provides a control method of a multi-split fresh air system, and the control method can meet air exchange among a plurality of indoor rooms according to control requirements of users so as to achieve temperature balance among the rooms. By executing the control method provided by the invention, the invention can also control the air exchange between each room and the outside according to the requirements of users so as to realize different requirements of each room for fresh air.
According to the control method of the multi-split fresh air system provided by the embodiment of the first aspect of the invention, the multi-split fresh air system comprises a heat exchanger, the heat exchanger comprises an air inlet pipeline and an air outlet pipeline, an outer air inlet valve is arranged at one end, connected with the outside, of the air inlet pipeline, an outer air outlet valve is arranged at one end, connected with the outside, of the air outlet pipeline, the heat exchanger is further provided with a plurality of indoor room interface modules, each indoor room interface module comprises an inner air inlet connected with the air inlet pipeline and an inner air outlet connected with the air outlet pipeline, an inner air inlet valve is arranged at the inner air inlet, and an inner air outlet valve is arranged at the inner air outlet; the control method comprises the following steps:
acquiring a fresh air demand value and a temperature demand value of each indoor room, and calculating a fresh air demand average value and a temperature demand average value of all the indoor rooms;
and controlling the opening and closing states of the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve according to the fresh air demand average value and the temperature demand average value so as to ventilate the outdoor room and the indoor rooms or ventilate among the indoor rooms.
The control method of the multi-split fresh air system provided by the invention has the following beneficial effects that: through the control method, the invention provides a multi-split fresh air system, wherein the multi-split fresh air system comprises a heat exchanger, the heat exchanger comprises an air inlet pipeline and an air outlet pipeline, an external air inlet air valve is arranged at one end, connected with the outside, of the air inlet pipeline, an external air outlet air valve is arranged at one end, connected with the outside, of the air outlet pipeline, the heat exchanger is further provided with a plurality of indoor room interface modules, each indoor room interface module comprises an inner air inlet connected with the air inlet pipeline and an inner air outlet connected with the air outlet pipeline, an inner air inlet air valve is arranged at the inner air inlet, and an inner air outlet air valve is arranged at the inner air outlet. The method can realize the acquisition of the fresh air demand value and the temperature demand value of each indoor room, thereby obtaining the fresh air demand average value and the temperature demand average value of all the indoor rooms, and controlling the external air inlet valve, the external air outlet valve, the internal air inlet valve and the internal air outlet valve according to the fresh air demand average value and the temperature demand average value. By controlling the open and close states of the outer air inlet valve, the outer air outlet valve, the inner air inlet valve and the inner air outlet valve, the method can realize the ventilation operation between the indoor and the outdoor or the ventilation operation between the indoor rooms. By the method, the fresh air demand value and the temperature demand value of each indoor room can be effectively obtained according to the requirements of users, and the corresponding ventilation operation is executed according to the fresh air demand value and the temperature demand value, so that the ventilation requirements of all indoor rooms are effectively realized, the air interaction between every two indoor rooms is realized, and the effect of temperature balance in the rooms is realized.
In some embodiments, the controlling the open and close states of the outer air inlet valve, the outer air outlet valve, the inner air inlet valve and the inner air outlet valve according to the fresh air demand average value and the temperature demand average value includes:
when the fresh air demand average value is larger than a first preset value, controlling the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve to be opened;
when the fresh air demand average value is smaller than a first preset value and the temperature demand average value is larger than a second preset value, executing first control;
wherein the first control includes:
acquiring the current indoor temperature of each indoor room, and calculating the average indoor temperature of all the indoor rooms;
when the outdoor temperature is higher than the sum of the indoor temperature average value and a third preset value and any temperature required value is lower than a fourth preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be closed and controlling all the inner air inlet air valves and the inner air outlet air valves to be opened;
wherein the first preset value, the second preset value and the third preset value are greater than 0, and the fourth preset value is less than 0.
In some embodiments, the first control further comprises:
when the outdoor temperature is greater than the sum of the average indoor temperature and a third preset value, and all the temperature required values are greater than the second preset value, controlling all the air valves to be closed
In some embodiments, the first control further comprises:
and when the outdoor temperature is lower than the difference between the average indoor temperature and the third preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be opened, controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value larger than the second preset value to be opened, and controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value smaller than the fourth preset value to be closed.
In some embodiments, the first control further comprises:
and when the outdoor temperature is greater than or equal to the difference between the average indoor temperature and the third preset value and is less than or equal to the sum of the average indoor temperature and the third preset value, controlling the opening and closing of all the air valves according to the previous moment.
In some embodiments, the controlling the open and close states of the outer air inlet valve, the outer air outlet valve, the inner air inlet valve and the inner air outlet valve according to the fresh air demand average value and the temperature demand average value further includes:
when the fresh air demand average value is smaller than a first preset value and the temperature demand average value is smaller than a fourth preset value, executing second control;
wherein the second control includes:
acquiring the current indoor temperature of each indoor room, and calculating the average indoor temperature of all the indoor rooms;
and when the outdoor temperature is less than the difference between the average indoor temperature and a third preset value and any temperature requirement value is greater than a second preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be closed and controlling all the inner air inlet air valves and the inner air outlet air valves to be opened.
In some embodiments, the second control further comprises:
and when the outdoor temperature is less than the difference between the average indoor temperature and the third preset value, and all the temperature required values are less than the fourth preset value, controlling all the air valves to be closed.
In some embodiments, the second control further comprises:
and when the outdoor temperature is higher than the sum of the average indoor temperature and the third preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be opened, controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value smaller than the fourth preset value to be opened, and controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value larger than the second preset value to be closed.
In some embodiments, the second control further comprises:
and when the outdoor temperature is greater than the difference between the average indoor temperature and the third preset value and is less than the sum of the average indoor temperature and the third preset value, controlling the opening and closing of all the air valves according to the previous moment.
In some embodiments, the controlling the open and close states of the outer air inlet valve, the outer air outlet valve, the inner air inlet valve and the inner air outlet valve according to the fresh air demand average value and the temperature demand average value further includes:
and when the fresh air demand average value is smaller than a first preset value, the temperature demand average value is smaller than or equal to the second preset value and is larger than or equal to the fourth preset value, controlling the opening and closing of all air valves according to the previous moment.
According to a second aspect of the present invention, there is provided an operation control apparatus, comprising at least one control processor and a memory for communication connection with the at least one control processor; the memory stores instructions executable by the at least one control processor, and the instructions are executed by the at least one control processor to enable the at least one control processor to execute the method for controlling the multi-split air system according to the embodiment of the first aspect of the present invention.
According to the operation control device provided by the invention, at least the following beneficial effects are achieved: the operation control device provided by the invention comprises at least one control processor and at least one memory which is in communication connection with the control processor. The memory stores instructions, the processor can execute the instructions stored in the memory, and by executing the instructions, the multi-split air system shown in fig. 2 can be controlled, so that the ventilation state of each room is controlled according to different fresh air demand values and temperature demand values required by different rooms corresponding to each indoor room interface module. Specifically, the control method of the multi-split air system provided by the invention can calculate the fresh air demand average value and the temperature demand average value of the indoor room according to the fresh air demand values and the temperature demand values of different rooms corresponding to the indoor room interface module, the inner air inlet air valve and the inner air outlet air valve in the multi-split air system provided by the invention. Furthermore, the invention can control the opening and closing states of the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve of each indoor room according to the fresh air demand average value and the temperature demand average value, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
According to a third aspect of the present invention, there is provided an air conditioner including the operation control device according to the second aspect of the present invention.
The air conditioner provided by the invention has the following beneficial effects: the air conditioner provided by the invention comprises the operation control device of the second aspect embodiment of the invention, and by the air conditioner, the invention can realize the control of the multi-split air renewal system shown in fig. 2, so that the ventilation state of each room is controlled according to different fresh air demand values and temperature demand values required by different rooms corresponding to each indoor room interface module. Specifically, the control method of the multi-split air system provided by the invention can calculate the fresh air demand average value and the temperature demand average value of the indoor room according to the fresh air demand values and the temperature demand values of different rooms corresponding to the indoor room interface module, the inner air inlet air valve and the inner air outlet air valve in the multi-split air system provided by the invention. Furthermore, the invention can control the opening and closing states of the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve of each indoor room according to the fresh air demand average value and the temperature demand average value, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method for controlling a multi-split air system as defined in the first aspect of the present invention.
According to the computer-readable storage medium provided by the invention, at least the following advantages are achieved: the computer-readable storage medium stores computer-executable instructions, and the computer can execute the computer-executable instructions to implement the method for controlling the multi-split air freshening system in the embodiment of the first aspect of the present invention, so as to control the multi-split air freshening system shown in fig. 2, and further control the ventilation state of each room according to different fresh air demand values and temperature demand values required by different rooms corresponding to each indoor room interface module. Specifically, the control method of the multi-split air system provided by the invention can calculate the fresh air demand average value and the temperature demand average value of the indoor room according to the fresh air demand values and the temperature demand values of different rooms corresponding to the indoor room interface module, the inner air inlet air valve and the inner air outlet air valve in the multi-split air system provided by the invention. Furthermore, the invention can control the opening and closing states of the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve of each indoor room according to the fresh air demand average value and the temperature demand average value, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of a control method of a multi-split fresh air system according to an embodiment of the first aspect of the present invention.
Fig. 2 is a schematic structural diagram of a multi-split fresh air system in an embodiment of the first aspect of the present invention.
Fig. 3 is a detailed flowchart of step S200 in fig. 1.
Fig. 4 is a schematic structural diagram of an operation control device according to a second aspect of the present invention.
Reference numerals:
the heat exchanger 100, the inner air inlet valve 110, the inner air outlet valve 120, the outer air inlet valve 200, the outer air outlet valve 300, the operation control device 400, the control processor 410 and the memory 420.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In a first aspect, referring to fig. 1 and 2, the invention provides a control method for a multi-split fresh air system, wherein the multi-split fresh air system comprises a heat exchanger, the heat exchanger comprises an air inlet pipeline and an air outlet pipeline, an external air inlet air valve is arranged at one end of the air inlet pipeline connected with the outdoor, an external air outlet air valve is arranged at one end of the air outlet pipeline connected with the outdoor, the heat exchanger is further provided with a plurality of indoor room interface modules, each indoor room interface module comprises an inner air inlet connected with the air inlet pipeline and an inner air outlet connected with the air outlet pipeline, an inner air inlet air valve is arranged at the inner air inlet, and an inner air outlet valve is arranged at the inner air outlet; the control method comprises the following steps:
s100, acquiring a fresh air demand value and a temperature demand value of each indoor room, and calculating a fresh air demand average value and a temperature demand average value of all indoor rooms;
and S200, controlling the opening and closing states of the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve according to the fresh air demand average value and the temperature demand average value so as to ventilate the outdoor room and the indoor room or ventilate the indoor room.
According to the control method of the multi-split fresh air system provided by the invention, the fresh air system shown in fig. 2 can be controlled, so that different fresh air demand values and temperature demand values required by different rooms corresponding to the room interface modules are obtained, and the ventilation state of each room is controlled according to the demand values. Specifically, the control method provided by the present invention can calculate the fresh air demand average value and the temperature demand average value of the indoor room according to the fresh air demand values and the temperature demand values of different rooms corresponding to the indoor room interface module, the inner air inlet damper 110 and the inner air outlet damper 120. Further, the present invention can control the opening and closing states of the outer inlet air damper 200, the outer outlet air damper 300, the inner inlet air damper 110 and the inner outlet air damper 120 of each indoor room according to the average fresh air demand and the average temperature demand, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
In some other embodiments, the number of the indoor rooms is not fixed, the number of the indoor rooms depends on the user requirement, but at least two room interface modules are provided to realize air exchange between at least two indoor rooms, so as to achieve the effect of temperature balance between the indoor rooms.
In some other embodiments, the control method provided by the invention first obtains the average value of the fresh air requirements, controls the opening and closing states of all the air valves according to the average value of the fresh air requirements, and when the average value of the fresh air requirements meets the requirements of users, the method can continuously obtain the average value of the temperature requirements to control the air valves corresponding to different indoor rooms, so as to control the indoor temperatures of the corresponding indoor rooms according to the requirements of the users.
Referring to fig. 3, in some embodiments, step S200 includes:
s210, when the average value of the fresh air demands is larger than a first preset value, controlling an outer air inlet valve, an outer air outlet valve, an inner air inlet valve and an inner air outlet valve to be opened;
s211, when the average value of the fresh air requirements is smaller than a first preset value and the average value of the temperature requirements is larger than a second preset value, executing first control;
s212, wherein the first control includes:
acquiring the current indoor temperature of each indoor room, and calculating the average indoor temperature of all indoor rooms;
s213, when the outdoor temperature is higher than the sum of the indoor temperature average value and the third preset value and any temperature required value is lower than the fourth preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be closed, and controlling all the inner air inlet air valves and the inner air outlet air valves to be opened;
wherein the first preset value, the second preset value and the third preset value are greater than each other, and the fourth preset value is smaller than each other
The method can control the corresponding air valve according to the requirements of users on fresh air and temperature of each indoor room, thereby ventilating different rooms. When the average value of the fresh air demand is above the first preset value, all the air valves can be controlled to be in an open state by the method, so that ventilation of all indoor rooms is realized. When the average fresh air demand value is lower than the first preset value, the method can compare the average temperature demand value with the second preset value. When the average value of the temperature demands is above a second preset value, the method judges that the ventilation operation of part of indoor rooms is possibly needed, and executes preset first control to realize the ventilation of the part of indoor rooms.
And executing the first control, wherein the method can acquire the current indoor temperature of each indoor room, and summarize all the current indoor temperatures to obtain the average indoor temperatures corresponding to all the indoor rooms. By acquiring a preset third preset value, the method can sum the average indoor temperature value with the third preset value, compare the calculation result with the outdoor temperature, when the outdoor temperature is higher than the calculation result, compare the current indoor temperature corresponding to each indoor room with a fourth preset value, and when there are indoor rooms with temperature requirement values lower than the fourth preset value, the method can judge that at least one indoor room in all the current indoor rooms needs to be temperature balanced, and open the inner near air valve 110 and the inner air outlet valve 120 corresponding to all the indoor rooms, so as to realize ventilation among the indoor rooms, and thus balance the indoor temperatures of the indoor rooms.
In some specific embodiments, when the control method provided by the present invention detects that the outdoor temperature is greater than the sum of the average indoor temperature and the third preset value, and there is an indoor room whose temperature demand is less than the fourth preset value, the control method controls the outer intake air damper 200 and the outer intake air damper 300 to close, and controls all the inner intake air dampers 110 and the inner exhaust air dampers 120 to open, and may further obtain a specific indoor room whose temperature demand is less than the fourth preset value, and turn on the motor of the indoor room and turn off the motors of other indoor rooms, so as to achieve fast air induction for the indoor room whose temperature demand does not meet the demand, thereby achieving the effect of balancing the temperatures of the indoor rooms.
In some specific embodiments, the first preset value may be 10%, the second preset value may be 20%, the third preset value may be 1, and the fourth preset value may be-20%.
In some embodiments, the first control further comprises:
and when the outdoor temperature is greater than the sum of the average indoor temperature and the third preset value, and all the temperature required values are greater than the second preset value, controlling all the air valves to be closed.
The control method provided by the invention can realize the first control through the outdoor temperature, the average value of the indoor temperature and the third preset value. Specifically, when the outdoor temperature is greater than the average indoor temperature and the third preset value, and the temperature requirement value is greater than the second preset value, the control method provided by the invention judges that each current room meets the fresh air requirement and the temperature requirement of each current indoor room of the user, and controls all air valves in the fresh air system to be kept in a closed state, so as to prevent air exchange among the indoor rooms and air interaction between the indoor rooms and the outside. In some other embodiments, when the outdoor temperature is greater than the average indoor temperature and the third preset value, and the temperature requirement is greater than the second preset value, the control method provided by the present invention closes all the motors corresponding to the inner inlet air damper 110 and the inner outlet air damper 120, thereby stopping the air induction to each indoor room.
In some embodiments, the first control further comprises:
and when the outdoor temperature is lower than the difference between the average indoor temperature and the third preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be opened, controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value higher than the second preset value to be opened, and controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value lower than the fourth preset value to be closed.
The control method provided by the invention can control the air valve by detecting the outdoor temperature, the indoor temperature balance value and the third preset value. Specifically, when the outdoor temperature is less than the difference between the average indoor temperature and the third preset value, the method determines that ventilation operation is required for each indoor room at present, and opens the outlet air valve 300 and the inlet air valve 200. By detecting the indoor room with the temperature requirement value greater than the second threshold value, the control method can determine which specific indoor room needs to be ventilated, and open the inner air inlet damper 110 and the inner air outlet damper 120 in the indoor room with the temperature requirement value greater than the second threshold value to realize ventilation of the corresponding indoor room and the outside. Similarly, the control method can determine which specific indoor room does not need ventilation by detecting the indoor room with the temperature requirement value smaller than the fourth preset value, and control the inner air inlet damper 110 and the inner air outlet damper 120 of the corresponding room to be in the closed state, so as to prevent the corresponding indoor room from being ventilated with the indoor room needing ventilation and the outdoor room, thereby maintaining the original temperature in the corresponding indoor room.
In some other embodiments, when the method detects that the outdoor temperature is less than the difference between the average indoor temperature and the third preset value and the temperature requirement value of one indoor room is greater than the second preset value, the method may further open the motor corresponding to the air valve of the corresponding indoor room to induce air into the indoor room having the temperature requirement value greater than the second preset value, so as to achieve quick ventilation. Similarly, the control method can judge which specific indoor room does not need ventilation by detecting the indoor room with the temperature requirement value smaller than the fourth preset value, and control the motor corresponding to the air valve of the corresponding room to be in a closed state, so that the air parameter of the corresponding indoor room is prevented from being changed by the induced air effect generated by the work of the motor.
In some embodiments, the first control further comprises:
and when the outdoor temperature is greater than or equal to the difference between the average indoor temperature and the third preset value and is less than or equal to the sum of the average indoor temperature and the third preset value, controlling the opening and closing of all the air valves according to the previous moment.
The control method provided by the invention can control the fresh air system according to the outdoor temperature, the average value of the indoor temperature and the third preset value. Specifically, when the outdoor temperature is greater than or equal to the difference between the indoor temperature average value and the third preset value and is less than or equal to the sum of the indoor temperature average value and the third preset value, the control method provided by the invention can judge that the current indoor rooms meet the requirements of users on fresh air and temperature without changing the working state of the fresh air system, and obtain the working state of the fresh air system at the previous moment so as to continuously keep the opening and closing of all air valves in the fresh air system at the current moment according to the opening and closing of all air valves in the fresh air system at the previous moment, thereby keeping the fresh air and the temperature of each indoor room unchanged.
In some other embodiments, when the outdoor temperature is greater than or equal to the difference between the average indoor temperature and the third preset value and is less than or equal to the sum of the average indoor temperature and the third preset value, the method may further obtain the operating states of the motors corresponding to all the dampers at the previous time, and keep the operating states of the motors consistent with the operating state at the previous time.
Referring to fig. 3, in some embodiments, step S200 further comprises:
s221, when the fresh air demand average value is smaller than a first preset value and the temperature demand average value is smaller than a fourth preset value, executing second control;
s222, wherein the second control includes:
acquiring the current indoor temperature of each indoor room, and calculating the average indoor temperature of all indoor rooms;
and S223, when the outdoor temperature is smaller than the difference between the indoor temperature average value and the third preset value and any temperature required value is larger than the second preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be closed, and controlling all the inner air inlet air valves and the inner air outlet air valves to be opened.
The control method provided by the invention can execute preset second control according to the average value of the fresh air demand, the temperature and air demand, the first preset value and the fourth preset value. Specifically, the method may compare the acquired average fresh air demand with a first preset value, acquire the average temperature demand when the average fresh air demand is smaller than the first preset value, and compare the average temperature demand with a fourth preset value, thereby executing the second control. That is, the current indoor temperature of each indoor room is obtained, and the corresponding indoor average temperature of all indoor rooms is obtained through each current indoor temperature. When the outdoor temperature is less than the difference between the average indoor temperature and the third preset value and any temperature requirement is greater than the second preset value, the control method provided by the invention can determine that the current indoor temperature is higher than the outdoor temperature without cooling operation, close the outer air inlet damper 200 and the outer air outlet damper 300 to prevent the indoor rooms from exchanging air with the outside, and open all the inner air inlet dampers 110 and the inner air outlet dampers 120 to realize the air exchange between each indoor room so as to balance the temperature of each indoor room. The method can effectively realize ventilation operation for each indoor room according to the requirements of users.
In some specific embodiments, the control method may further turn off the motor corresponding to the indoor room with the temperature requirement greater than the second preset value, and turn off the motors of the other indoor rooms, so as to achieve the effect of inducing wind to the indoor room with the temperature requirement greater than the second preset value through the motors, so as to achieve the effect of rapid ventilation.
In some embodiments, the second control further comprises:
and when the outdoor temperature is less than the difference between the average indoor temperature and the third preset value, and all the temperature required values are less than the fourth preset value, controlling all the air valves to be closed.
The control method provided by the invention can control the air valve according to the outdoor temperature, the average value of the indoor temperature, the third preset value and the fourth preset value. Specifically, when the outdoor temperature is less than the difference between the average indoor temperature and the third preset value, the method can compare all the temperature demand values with the fourth preset value, and when all the temperature demand values are less than the fourth preset value, the control method provided by the invention judges that all the current indoor rooms are higher than the external temperature, and each indoor temperature meets the user requirement, and closes all the air valves.
In some specific embodiments, when the outdoor temperature is less than the difference between the average indoor temperature and the third preset value, and all the temperature requirement values are less than the fourth preset value, the control method provided by the present invention may turn off the motors corresponding to all the dampers to prevent the motors from inducing wind.
In some embodiments, the second control further comprises:
and when the outdoor temperature is higher than the sum of the average indoor temperature and the third preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be opened, controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value smaller than the fourth preset value to be opened, and controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value larger than the second preset value to be closed.
The control method provided by the invention can control the air valve according to the outdoor temperature, the average value of the indoor temperature and the third preset value. Specifically, when the outdoor temperature is greater than the sum of the average indoor temperature and the third preset value, the control method provided by the present invention may open the outer intake air damper 200 and the outer intake air damper 300, thereby providing an operation basis for ventilation of the indoor room. By detecting the indoor room having the temperature requirement value smaller than the fourth preset value, the control method may determine that the corresponding indoor room requires a ventilation operation, and open the inner inlet damper 110 and the inner outlet damper 120 of the corresponding indoor room. In some specific embodiments, the control method of the present invention may further open the motors corresponding to the inner inlet damper 110 and the inner outlet damper 120 of the indoor room having the temperature requirement value smaller than the fourth preset value to realize the air inducing function. By detecting the indoor room having the temperature requirement greater than the second preset value, the control method can determine that the corresponding indoor room does not require ventilation operation, and close the inner inlet damper 110 and the inner outlet damper 120 of the corresponding indoor room, thereby maintaining the indoor air parameter of the corresponding indoor room unchanged.
In some specific embodiments, the control method of the present invention may further turn off the motors corresponding to the inner inlet damper 110 and the inner outlet damper 120 of the indoor room having the temperature requirement greater than the second preset value, so as to avoid the motors from performing an induced draft operation on the corresponding indoor room.
In some embodiments, the second control further comprises:
and when the outdoor temperature is greater than the difference between the average indoor temperature and the third preset value and is less than the sum of the average indoor temperature and the third preset value, controlling the opening and closing of all the air valves according to the previous moment.
The control method provided by the invention can also judge that the current multi-split air refreshing system meets the requirements of users when the outdoor temperature is greater than the difference between the average indoor temperature and the third preset value and is less than the sum of the average indoor temperature and the third preset value, thereby controlling the working state of the air refreshing system to be kept unchanged. Specifically, when the outdoor temperature is within the range of one degree centigrade above and one degree centigrade below the average indoor temperature, the method can acquire the working state of the multi-split air system at the previous moment, and keep the working state of the multi-split air system consistent with the working state at the previous moment so as to control all parameters of the indoor room to be kept unchanged, thereby realizing the requirements of the user on fresh air and temperature.
In some specific embodiments, when the outdoor temperature is greater than the difference between the average indoor temperature and the third preset value, and the outdoor temperature is less than the sum of the average indoor temperature and the third preset value, the control method provided by the present invention may further obtain the previous working state of the motor corresponding to all the dampers, and keep the previous working state of the motor consistent.
In some embodiments, step S200 further comprises:
and when the average value of the fresh air requirements is smaller than the first preset value, the average value of the temperature requirements is smaller than or equal to the second preset value and is larger than or equal to the fourth preset value, controlling the opening and closing of all the air valves according to the previous moment.
The control method provided by the invention can also obtain the working state of the multi-split air supply system at the last moment according to the average value of the fresh air demands, the average value of the temperature demands, the first preset value, the second preset value and the fourth preset value. Specifically, when the average value of the fresh air demands is smaller than a first preset value, the average value of the temperature demands is smaller than or equal to a second preset value, and meanwhile, the average value of the temperature demands is larger than or equal to a fourth preset value, the control method can judge that the working state of the current multi-online fresh air system meets the requirements of users on all parameters, and obtains the working state of all air valves controlled at the last moment, so that the working states of all air valves at the current moment are controlled to be consistent with the working states of all air valves at the last moment, and all parameters of indoor rooms are controlled to be kept unchanged.
In some specific embodiments, when the average fresh air demand does not satisfy the first preset value, the method may control the operating states of the motors corresponding to all the dampers by determining whether the average fresh air demand is between the second preset value and the fourth preset value. Specifically, when the average value of the fresh air requirements is between the second preset value and the fourth preset value, or the average value of the fresh air requirements is equal to the second preset value or the fourth preset value, the method can acquire the working states of the motors corresponding to all the air valves at the previous moment, and keep the working states of the motors corresponding to all the air valves consistent with the working state of the motor at the previous moment, so that all parameters of the indoor room are controlled to be unchanged.
In a second aspect, the present invention provides an operation control device comprising at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor, and the instructions are executed by the at least one control processor to enable the at least one control processor to execute the multi-split fresh air system control method according to the embodiment of the first aspect of the present invention.
The operation control apparatus 400 provided by the present invention includes at least one control processor 410 and a memory 420 communicatively coupled to the at least one control processor 410. The memory 420 stores instructions, the control processor 410 can execute the instructions stored in the memory 420, and by executing the instructions, the multi-split air system shown in fig. 2 can be controlled, so that the ventilation state of each room is controlled according to different fresh air demand values and temperature demand values required by different rooms corresponding to each indoor room interface module. Specifically, according to the control method of the multi-split air system provided by the invention, the fresh air demand value and the temperature demand value of different rooms corresponding to the indoor room interface module, the inner air inlet air valve 110 and the inner air outlet air valve 120 in the multi-split air system can be calculated to obtain the fresh air demand average value and the temperature demand average value of the indoor rooms. Further, the present invention can control the opening and closing states of the outer inlet air damper 200, the outer outlet air damper 300, the inner inlet air damper 110 and the inner outlet air damper 120 of each indoor room according to the average fresh air demand and the average temperature demand, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
In a third aspect, the present invention provides an air conditioner including an operation control device as in the second aspect of the present invention.
The air conditioner provided by the present invention includes the operation control device 400 according to the second aspect of the present invention, and by this air conditioner, the present invention can realize the control of the multi-split air system as shown in fig. 2, so as to control the ventilation state of each room according to the different fresh air demand values and temperature demand values required by the different rooms corresponding to each indoor room interface module. Specifically, the control method of the multi-split air system provided by the invention can calculate the fresh air demand average value and the temperature demand average value of the indoor room according to the fresh air demand values and the temperature demand values of different rooms corresponding to the indoor room interface module, the inner air inlet air valve and the inner air outlet air valve 120 in the multi-split air system provided by the invention. Further, the present invention can control the opening and closing states of the outer inlet air damper 200, the outer outlet air damper 300, the inner inlet air damper 110 and the inner outlet air damper 120 of each indoor room according to the average fresh air demand and the average temperature demand, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
In a fourth aspect, the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, where the computer-executable instructions are configured to enable a computer to execute a method for controlling a multi-split air system according to an embodiment of the first aspect of the present invention.
The computer-readable storage medium stores computer-executable instructions, and the computer can execute the computer-executable instructions to implement the method for controlling the multi-split air freshening system in the embodiment of the first aspect of the present invention, so as to control the multi-split air freshening system shown in fig. 2, and further control the ventilation state of each room according to different fresh air demand values and temperature demand values required by different rooms corresponding to each indoor room interface module. Specifically, according to the control method of the multi-split air system provided by the invention, the fresh air demand value and the temperature demand value of different rooms corresponding to the indoor room interface module, the inner air inlet air valve 110 and the inner air outlet air valve 120 in the multi-split air system can be calculated to obtain the fresh air demand average value and the temperature demand average value of the indoor rooms. Further, the present invention can control the opening and closing states of the outer inlet air damper 200, the outer outlet air damper 300, the inner inlet air damper 110 and the inner outlet air damper 120 of each indoor room according to the average fresh air demand and the average temperature demand, thereby realizing ventilation between the outdoor and the indoor or realizing ventilation between a plurality of indoor rooms. The method effectively meets the ventilation requirement among all indoor rooms, so that the air interaction among all the indoor rooms is realized, and the effect of temperature balance inside the rooms is realized.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (13)
1. The control method of the multi-split fresh air system is characterized in that the multi-split fresh air system comprises a heat exchanger, the heat exchanger comprises an air inlet pipeline and an air outlet pipeline, an outer air inlet air valve is arranged at one end, connected with the outside, of the air inlet pipeline, an outer air outlet air valve is arranged at one end, connected with the outside, of the air outlet pipeline, the heat exchanger is further provided with a plurality of indoor room interface modules, each indoor room interface module comprises an inner air inlet connected with the air inlet pipeline and an inner air outlet connected with the air outlet pipeline, an inner air inlet air valve is arranged at the inner air inlet, and an inner air outlet air valve is arranged at the inner air outlet; the control method comprises the following steps:
acquiring a fresh air demand value and a temperature demand value of each indoor room, and calculating a fresh air demand average value and a temperature demand average value of all the indoor rooms;
and controlling the opening and closing states of the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve according to the fresh air demand average value and the temperature demand average value so as to ventilate the outdoor room and the indoor rooms or ventilate among the indoor rooms.
2. The control method according to claim 1, wherein the controlling the open and closed states of the outer inlet air valve, the outer outlet air valve, the inner inlet air valve and the inner outlet air valve according to the fresh air demand average value and the temperature demand average value includes:
when the fresh air demand average value is larger than a first preset value, controlling the outer air inlet air valve, the outer air outlet air valve, the inner air inlet air valve and the inner air outlet air valve to be opened;
when the fresh air demand average value is smaller than a first preset value and the temperature demand average value is larger than a second preset value, executing first control;
wherein the first control includes:
acquiring the current indoor temperature of each indoor room, and calculating the average indoor temperature of all the indoor rooms;
when the outdoor temperature is higher than the sum of the indoor temperature average value and a third preset value and any temperature required value is lower than a fourth preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be closed and controlling all the inner air inlet air valves and the inner air outlet air valves to be opened;
wherein the first preset value, the second preset value and the third preset value are greater than 0, and the fourth preset value is less than 0.
3. The control method according to claim 2, characterized in that the first control further includes:
and when the outdoor temperature is greater than the sum of the average indoor temperature and a third preset value, and all the temperature required values are greater than the second preset value, controlling all the air valves to be closed.
4. The control method according to claim 2, characterized in that the first control further includes:
and when the outdoor temperature is lower than the difference between the average indoor temperature and the third preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be opened, controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value larger than the second preset value to be opened, and controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value smaller than the fourth preset value to be closed.
5. The control method according to claim 2, characterized in that the first control further includes:
and when the outdoor temperature is greater than or equal to the difference between the average indoor temperature and the third preset value and is less than or equal to the sum of the average indoor temperature and the third preset value, controlling the opening and closing of all the air valves according to the previous moment.
6. The control method according to claim 2, wherein the controlling the open and closed states of the outer intake air damper, the outer outlet air damper, the inner intake air damper and the inner outlet air damper according to the fresh air demand average value and the temperature demand average value further comprises:
when the fresh air demand average value is smaller than a first preset value and the temperature demand average value is smaller than a fourth preset value, executing second control;
wherein the second control includes:
acquiring the current indoor temperature of each indoor room, and calculating the average indoor temperature of all the indoor rooms;
and when the outdoor temperature is less than the difference between the average indoor temperature and a third preset value and any temperature requirement value is greater than a second preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be closed and controlling all the inner air inlet air valves and the inner air outlet air valves to be opened.
7. The control method according to claim 6, characterized in that the second control further includes:
and when the outdoor temperature is less than the difference between the average indoor temperature and the third preset value, and all the temperature required values are less than the fourth preset value, controlling all the air valves to be closed.
8. The control method according to claim 6, characterized in that the second control further includes:
and when the outdoor temperature is higher than the sum of the average indoor temperature and the third preset value, controlling the outer air inlet air valve and the outer air outlet air valve to be opened, controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value smaller than the fourth preset value to be opened, and controlling the inner air inlet air valve and the inner air outlet air valve corresponding to the indoor room with the temperature requirement value larger than the second preset value to be closed.
9. The control method according to claim 6, characterized in that the second control further includes:
and when the outdoor temperature is greater than the difference between the average indoor temperature and the third preset value and is less than the sum of the average indoor temperature and the third preset value, controlling the opening and closing of all the air valves according to the previous moment.
10. The control method according to claim 2, wherein the controlling the open and closed states of the outer intake air damper, the outer outlet air damper, the inner intake air damper and the inner outlet air damper according to the fresh air demand average value and the temperature demand average value further comprises:
and when the fresh air demand average value is smaller than a first preset value, the temperature demand average value is smaller than or equal to the second preset value and is larger than or equal to the fourth preset value, controlling the opening and closing of all air valves according to the previous moment.
11. An operation control device comprising at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the method of controlling a multi-split fresh air system as claimed in any one of claims 1 to 10.
12. An air conditioner characterized by comprising the operation control device according to claim 11.
13. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions for causing a computer to execute the on-line fresh air system control method according to any one of claims 1 to 10.
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