CN109612011B - Control method and device of fresh air system and fresh air system - Google Patents

Control method and device of fresh air system and fresh air system Download PDF

Info

Publication number
CN109612011B
CN109612011B CN201811501295.5A CN201811501295A CN109612011B CN 109612011 B CN109612011 B CN 109612011B CN 201811501295 A CN201811501295 A CN 201811501295A CN 109612011 B CN109612011 B CN 109612011B
Authority
CN
China
Prior art keywords
concentration
fan
humidity
gear
fresh air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811501295.5A
Other languages
Chinese (zh)
Other versions
CN109612011A (en
Inventor
曹磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
GD Midea Air Conditioning Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GD Midea Air Conditioning Equipment Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN201811501295.5A priority Critical patent/CN109612011B/en
Publication of CN109612011A publication Critical patent/CN109612011A/en
Application granted granted Critical
Publication of CN109612011B publication Critical patent/CN109612011B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • 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
    • 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
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)

Abstract

The invention provides a control method and a device of a fresh air system and the fresh air system, wherein the control method of the fresh air system comprises the following steps: judging whether the concentration of the indoor carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; the control valve is controlled according to the cooling load and the temperature of the cooling water. According to the control method and device of the fresh air system and the fresh air system, the opening of the fresh air system and the gear during opening can be accurately controlled, and the ventilation pipe is prevented from mildewing; the fresh air supply temperature can be accurately reduced through the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.

Description

Control method and device of fresh air system and fresh air system
Technical Field
The invention relates to the technical field of electric appliances, in particular to a control method and device of a fresh air system and the fresh air system.
Background
Along with the improvement of living standard of people, the demand for fresh air is more and more strong.
In the related art, the fresh air system is usually of an all-heat exchanger type, and the fresh air is cooled/heated by utilizing residual cold/residual heat exhausted to outdoor air, but the fresh air system is complex in structure and high in cost. And the fresh air system without the total heat exchanger cannot cool the fresh air entering the room. In addition, when the humidity in the ventilation pipeline of the fresh air system is high, the ventilation pipeline of the fresh air system is easy to mildew.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present invention is to provide a control method for a fresh air system, which determines whether to start a fan and set a gear when the fan is started according to the concentration of indoor carbon dioxide, a first humidity in a ventilation duct, a second humidity at an air inlet of an air inlet device, and a preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
The second purpose of the invention is to provide a control device of the fresh air system.
The third purpose of the invention is to provide a fresh air system.
A fourth object of the invention is to propose an electronic device.
A fifth object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a control method for a fresh air system, where the fresh air system includes: the air conditioner comprises a cooling wet film, a first humidity sensor, a second humidity sensor and a control valve, wherein the cooling wet film is arranged between the top surface and the bottom surface of a ventilating pipeline between an outdoor air inlet device and an indoor air outlet device; the cooling wet film is used for storing the cooling water of input, first humidity transducer is used for detecting first humidity in the air pipe, second humidity transducer is used for detecting the second humidity of air intake device air intake department, control valve is used for the control input extremely the cooling wet film the flow of cooling water, the cooling water is the comdenstion water that the air conditioner produced in the refrigeration process, control method includes:
periodically acquiring the concentration of indoor carbon dioxide;
judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not;
if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to be closed, starting the fan, and setting a gear when the fan is started as a set gear;
if not, starting the fan, and determining a gear when the fan is started according to the concentration of the carbon dioxide;
acquiring a cold load required by fresh air cooling of the fresh air system according to the gear when the fan is started;
acquiring the temperature of the cooling water;
calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water;
and controlling the control valve according to the opening degree.
According to the control method of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; acquiring the temperature of cooling water; calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water; the control valve is controlled according to the opening degree. Determining whether to start the fan and setting a gear when the fan is started according to the concentration of indoor carbon dioxide, first humidity in the ventilation pipeline, second humidity at an air inlet of the air inlet device and preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
According to one embodiment of the invention, the set gear is the lowest gear of the fan.
According to an embodiment of the present invention, the control method further includes: if the first humidity is smaller than the sum, the control valve is controlled to be closed, and the fan is not started.
According to one embodiment of the invention, an upper air outlet guide vane is arranged at an upper air outlet of the air outlet device, and a lower air outlet guide vane is arranged at a lower air outlet of the air outlet device; after the controlling the control valve, the control method further includes: judging whether the second humidity is smaller than a preset humidity threshold value or not; if so, controlling the upper air outlet guide vane and the lower air outlet guide vane to be opened; if not, the upper air outlet guide vane is controlled to be opened, and the lower air outlet guide vane is controlled to be closed.
According to an embodiment of the present invention, the determining the gear when the fan is turned on according to the concentration of the carbon dioxide includes: determining a concentration grade or a concentration interval corresponding to the concentration of the carbon dioxide according to the concentration of the carbon dioxide; and determining the gear when the fan is started according to the concentration grade or the concentration interval.
According to an embodiment of the present invention, the determining the gear when the fan is turned on according to the concentration level or the concentration interval includes: the higher the concentration of the carbon dioxide corresponding to the concentration grade or the concentration interval is, the larger the gear when the fan is started is.
According to an embodiment of the present invention, the acquiring a cooling load required by fresh air cooling of the fresh air system according to the gear when the fan is turned on includes: acquiring an outdoor environment temperature and an indoor environment temperature; and calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
In order to achieve the above object, a second embodiment of the present invention provides a control device for a fresh air system, where the fresh air system includes: the air conditioner comprises a cooling wet film, a first humidity sensor, a second humidity sensor and a control valve, wherein the cooling wet film is arranged between the top surface and the bottom surface of a ventilating pipeline between an outdoor air inlet device and an indoor air outlet device; the cooling wet film is used for storing the cooling water of input, first humidity transducer is used for detecting first humidity in the air pipe, second humidity transducer is used for detecting the second humidity of air intake device air intake department, control valve is used for the control input extremely the cooling wet film the flow of cooling water, the cooling water is the comdenstion water that the air conditioner produced at the refrigeration in-process, controlling means includes:
the first acquisition module is used for periodically acquiring the concentration of indoor carbon dioxide;
the first judgment module is used for judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not;
the starting setting module is used for controlling the control valve to be closed, starting the fan and setting a gear when the fan is started as a set gear if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity;
the starting determining module is used for starting the fan if the carbon dioxide is not in the preset range, and determining the gear when the fan is started according to the concentration of the carbon dioxide;
the second acquisition module is used for acquiring the cold load required by the fresh air cooling of the fresh air system according to the gear when the fan is started;
the third acquisition module is used for acquiring the temperature of the cooling water;
the calculation module is used for calculating the opening of the control valve according to the cold load and the temperature of the cooling water;
and the first control module is used for controlling the control valve according to the opening degree.
According to the control device of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; acquiring the temperature of cooling water; calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water; the control valve is controlled according to the opening degree. Determining whether to start the fan and setting a gear when the fan is started according to the concentration of indoor carbon dioxide, first humidity in the ventilation pipeline, second humidity at an air inlet of the air inlet device and preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
According to one embodiment of the invention, the set gear is the lowest gear of the fan.
According to an embodiment of the present invention, the opening setting module is further configured to: if the first humidity is smaller than the sum, the control valve is controlled to be closed, and the fan is not started.
According to an embodiment of the present invention, the control apparatus further includes: the second judgment module is used for judging whether the second humidity is smaller than a preset humidity threshold value; the second control module is used for controlling the upper air outlet guide vane and the lower air outlet guide vane to be opened if the upper air outlet guide vane and the lower air outlet guide vane are opened; if not, the upper air outlet guide vane is controlled to be opened, and the lower air outlet guide vane is controlled to be closed.
According to an embodiment of the present invention, the start determining module is specifically configured to: determining a concentration grade or a concentration interval corresponding to the concentration of the carbon dioxide according to the concentration of the carbon dioxide; and determining the gear when the fan is started according to the concentration grade or the concentration interval.
According to an embodiment of the present invention, the start determining module is specifically configured to: the higher the concentration of the carbon dioxide corresponding to the concentration grade or the concentration interval is, the larger the gear when the fan is started is.
According to an embodiment of the present invention, the second obtaining module is specifically configured to: acquiring an outdoor environment temperature and an indoor environment temperature; and calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
In order to achieve the above object, a third aspect of the present invention provides a fresh air system, including: the control device of the fresh air system according to the embodiment of the second aspect of the invention.
To achieve the above object, a fourth aspect of the present invention provides an electronic device, including: the control method of the fresh air system comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the control method of the fresh air system is realized.
To achieve the above object, a fifth embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the control method of the fresh air system according to the first embodiment of the present invention.
Drawings
FIG. 1 is a block diagram of a fresh air system according to one embodiment of the present invention;
FIG. 2 is a flow chart of a control method of a fresh air system according to one embodiment of the present invention;
FIG. 3 is a flow chart of a control method of a fresh air system according to another embodiment of the present invention;
FIG. 4 is a flow chart of a control method of a fresh air system according to another embodiment of the present invention;
FIG. 5 is a flow chart of a control method of a fresh air system according to another embodiment of the present invention;
FIG. 6 is a detailed flow chart of a control method of the fresh air system according to an embodiment of the invention;
FIG. 7 is a block diagram of a fresh air system control device according to one embodiment of the present invention;
FIG. 8 is a block diagram of a fresh air system according to one embodiment of the present invention;
FIG. 9 is a block diagram of an electronic device in accordance with one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes a control method and device of a fresh air system and the fresh air system according to an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is a structural diagram of a fresh air system according to an embodiment of the present invention, and as shown in fig. 1, the fresh air system includes: the air inlet device 13 is used for extracting outdoor air into a ventilation pipeline of the fresh air system; the air outlet device 14 is used for sending the fresh air processed by the fresh air system to the room; the first filter screen 15, the second filter screen 16 and the third filter screen 17 are sequentially arranged in the ventilation pipeline along the direction from air inlet to air outlet, the first filter screen 15 is used for filtering particulate matters in air entering the ventilation pipeline, the second filter screen 16 is used for carrying out secondary filtration on the air filtered by the first filter screen 15 and cooled by the cooling wet film 11, and the third filter screen 17 is used for carrying out sterilization treatment on the air filtered by the second filter screen 16; a cooling water pretreatment device 12 for pretreating the cooling water and delivering the pretreated cooling water to the cooling wet film 11; a cooling wet film 11 for storing input cooling water, wherein the cooling water stored in the cooling wet film 11 is gasified when the air passes through the cooling wet film 11, and the air is cooled, wherein, as shown in fig. 1, the cooling wet film 11 may be disposed between the top surface and the bottom surface of the ventilation duct between the air inlet device 13 and the air outlet device 14, and specifically, may be disposed between the first filter screen 15 and the second filter screen 16; a first humidity sensor 18, configured to detect a first humidity in the ventilation duct, as shown in fig. 1, the first humidity sensor 18 may be disposed on a side surface of the cooling wet film 11 close to the air outlet direction; the second humidity sensor 19 is arranged at the air inlet of the air inlet device 13 and is used for detecting second humidity at the air inlet of the air inlet device 13; a control valve 20 for controlling the flow rate of the cooling water input to the cooling wet film 11; an upper air outlet guide vane 21 arranged at an air outlet of the air outlet device 14 and used for controlling the opening and closing of the air outlet device 14, wherein when the upper air outlet guide vane 21 is opened, the air outlet of the air outlet device 14 is opened, and when the upper air outlet guide vane 21 is closed, the air outlet of the air outlet device 14 is closed; the lower air outlet guide vane 22 of air outlet under the setting air-out device 14 for opening and closing of air outlet under the control air-out device 14, when air-out guide vane 22 opened down, air outlet was opened under the air-out device 14, and when air-out guide vane 22 closed down, air outlet was closed down under the air-out device 14.
Fig. 2 is a flowchart of a control method of a fresh air system according to an embodiment of the present invention, and as shown in fig. 2, the control method of the fresh air system includes:
and S101, periodically acquiring the concentration of the carbon dioxide in the room.
In an embodiment of the present invention, the fresh air system includes: the cooling wet film is arranged between the top surface and the bottom surface of the ventilating pipeline between the outdoor air inlet device and the indoor air outlet device, the first humidity sensor is arranged on the side surface of the cooling wet film close to the air outlet direction, and the second humidity sensor and the control valve are arranged at the air inlet of the air inlet device; the cooling wet film is used for storing input cooling water, the first humidity sensor is used for detecting first humidity in the ventilation pipeline, the second humidity sensor is used for detecting second humidity at an air inlet of the air inlet device, the control valve is used for controlling flow of the cooling water input to the cooling wet film, and the cooling water is condensed water generated in the refrigerating process of the air conditioner, namely the water with lower temperature and used for cooling fresh air of a fresh air system. Can set up concentration sensor in the indoor side of new trend system, through the concentration sensor periodic acquisition indoor carbon dioxide's concentration.
And S102, judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value.
In the embodiment of the invention, a concentration threshold value can be preset, the concentration threshold value can be a critical value that the concentration of carbon dioxide is low, and when the concentration of indoor carbon dioxide is lower than the concentration threshold value, the concentration of indoor carbon dioxide is low, and indoor air does not need to be purified and ventilated. After the concentration of the carbon dioxide in the room is acquired in the step S101, the concentration of the carbon dioxide is compared with a concentration threshold, and whether the concentration of the carbon dioxide is less than a preset concentration threshold is determined.
S103, if the first humidity is equal to or larger than the sum of the second humidity and the preset difference humidity, the control valve is controlled to be closed, the fan is started, and the gear when the fan is started is set as a set gear.
In the embodiment of the present invention, a difference humidity may be preset, and a sum of the difference humidity and the second humidity may be a critical value at which mildew occurs in the ventilation duct, and when a first humidity in the ventilation duct is equal to or greater than a sum of the difference humidity and the second humidity, the mildew may occur in the ventilation duct, where the first humidity in the ventilation duct may be detected and obtained by a first humidity sensor as shown in fig. 1, and the second humidity at an air inlet of the air intake device may be detected and obtained by a second humidity sensor as shown in fig. 1. If the concentration of the carbon dioxide is judged to be less than the preset concentration threshold value in the step S102, and the first humidity in the ventilation pipeline is detected to be equal to or greater than the sum of the difference humidity and the second humidity, the indoor air does not need to be purified and ventilated at the moment, the ventilation pipeline is likely to mildew, the control valve is controlled to be closed, the fan is started, the gear when the fan is started is set as a set gear, and the fan is prevented from mildewing; or when the fan is started, the fan is kept in a starting state. As a feasible implementation manner, the set gear can be specifically the lowest gear of the fan, so that the power consumption can be reduced while the ventilation pipeline is prevented from mildewing.
And S104, if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide.
In the embodiment of the present invention, if it is determined in step S102 that the concentration of carbon dioxide is equal to or greater than the preset concentration threshold, it indicates that indoor air needs to be purified and ventilated, the fan is turned on, and the gear when the fan is turned on is determined. As a possible implementation manner, a mapping relationship between the concentration of the carbon dioxide and the gear when the fan is turned on may be established in advance, and when it is determined in step S102 that the concentration of the carbon dioxide is equal to or greater than the preset concentration threshold, the mapping relationship is queried, so that the gear when the fan is turned on may be determined.
And S105, acquiring a cooling load required by fresh air cooling of the fresh air system according to the gear when the fan is started.
In the embodiment of the invention, when indoor air needs to be purified and ventilated, namely the concentration of carbon dioxide is judged to be equal to or greater than the preset concentration threshold in the step S102, the cooling load required by fresh air cooling of the fresh air system can be obtained by calculation according to the outdoor environment temperature and the indoor environment temperature.
And S106, acquiring the temperature of the cooling water.
In the embodiment of the present invention, a temperature sensor may be provided in the cooling water pretreatment device shown in fig. 1, and the temperature of the cooling water may be obtained by the temperature sensor. As a feasible implementation manner, the cooling water can be specifically condensed water generated in the air conditioner in the refrigeration process, the sensible heat and the latent heat of evaporation of the condensed water are utilized to efficiently recycle the cold energy of the condensed water of the air conditioner, and the pollution of the condensed water to the environment can be reduced.
And S107, calculating the opening degree of the control valve according to the cooling load and the temperature of the cooling water.
In the embodiment of the invention, after the cold load and the temperature of the cooling water are obtained, the opening degree of the control valve is calculated according to the cold load and the temperature of the cooling water.
And S108, controlling the control valve according to the opening degree.
In the embodiment of the present invention, the control valve is opened according to the opening degree of the control valve calculated in step S107, and cooling water is supplied to the cooling wet film.
Further, the control method of the fresh air system further comprises the following steps: if the first humidity is smaller than the sum, the control valve is controlled to be closed, and the fan is not started.
In the embodiment of the present invention, if it is determined in step S102 that the concentration of the carbon dioxide is less than the preset concentration threshold, and it is detected that the first humidity in the ventilation duct is less than the sum of the difference humidity and the second humidity, it indicates that the indoor air does not need to be purified and ventilated, and the ventilation duct does not mildew, the control valve is controlled to be closed, and the fan is not turned on. The fan is closed when the fan is in an open state without being opened; or when the fan is closed, the fan is kept in a closed state.
According to the control method of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; acquiring the temperature of cooling water; calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water; the control valve is controlled according to the opening degree. Determining whether to start the fan and setting a gear when the fan is started according to the concentration of indoor carbon dioxide, first humidity in the ventilation pipeline, second humidity at an air inlet of the air inlet device and preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
Fig. 3 is a flowchart of a control method of a fresh air system according to another embodiment of the present invention, and as shown in fig. 3, after step S108 in the embodiment shown in fig. 2, the control method of the fresh air system further includes:
s201, judging whether the second humidity is smaller than a preset humidity threshold value.
In the embodiment of the invention, a humidity threshold value can be preset, the humidity threshold value can be a critical value of atomized water drops at the air outlet device, when the second humidity at the air inlet of the air inlet device is equal to or greater than the humidity threshold value, the atomized water drops may appear at the air outlet device, and the atomized water drops may drip at the lower air outlet of the air outlet device, so that user experience is influenced. The second humidity at the air inlet of the air intake device can be detected and obtained through the second humidity sensor shown in fig. 1, and compared with the humidity threshold value, whether the second humidity is smaller than the preset humidity threshold value or not is judged.
S202, if yes, the upper air outlet guide vane and the lower air outlet guide vane are controlled to be opened.
In the embodiment of the present invention, if it is determined in step S201 that the second humidity is less than the preset humidity threshold, the probability of atomized water droplets appearing at the air outlet device is low, the upper air outlet guide vane and the lower air outlet guide vane are controlled to be opened, and fresh air is supplied to the room through the upper air outlet and the lower air outlet of the air outlet device.
S203, if not, controlling the upper air outlet guide vane to be opened, and controlling the lower air outlet guide vane to be closed.
In the embodiment of the present invention, if it is determined in step S201 that the second humidity is equal to or greater than the preset humidity threshold, the atomized water droplets may appear at the air outlet device, and the atomized water droplets may drip at the lower air outlet of the air outlet device, which affects user experience. The air-out stator is opened in the control, and the air-out stator is closed under the control, prevents the atomizing water droplet and drips, promotes user experience.
According to the control method of the fresh air system provided by the embodiment of the invention, the opening and closing of the upper air outlet guide vane and the lower air outlet guide vane are controlled according to the second humidity and the preset humidity threshold value, so that the possibility of dropping of atomized water drops can be reduced to the greatest extent, and the user experience is improved.
Fig. 4 is a flowchart of a control method of a fresh air system according to another embodiment of the present invention, and as shown in fig. 4, on the basis of the embodiment shown in fig. 2, the step S104 of "determining a gear when the fan is turned on according to a concentration of carbon dioxide" may specifically include:
s301, determining a concentration level or a concentration interval corresponding to the concentration of the carbon dioxide according to the concentration of the carbon dioxide.
In the embodiment of the invention, the carbon dioxide concentration grade or the concentration interval can be divided in advance, after the indoor carbon dioxide concentration is obtained, the carbon dioxide concentration is compared with the carbon dioxide concentration grade or the concentration interval which is divided in advance, the concentration grade corresponding to the carbon dioxide concentration is the concentration grade, or the interval in which the carbon dioxide concentration falls is the concentration interval corresponding to the carbon dioxide concentration. For example, the carbon dioxide concentration level may be classified in advance into a low concentration level, a medium-high concentration level, and a high concentration level, or the carbon dioxide concentration may be classified in advance into a low concentration section, a medium-high concentration section, and a high concentration section.
S301, determining the gear when the fan is started according to the concentration level or the concentration interval.
In the embodiment of the invention, after the concentration level or the concentration interval is obtained in the step S301, the gear when the fan is turned on is determined according to the concentration level or the concentration interval. As a possible implementation manner, the higher the concentration of the carbon dioxide corresponding to the concentration level or the concentration interval is, the larger the gear when the fan is turned on is.
According to the control method of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; and determining the gear when the fan is started according to the concentration of the carbon dioxide. The gear when the fan is started is determined according to the concentration of indoor carbon dioxide, the gear when the fresh air system is started can be accurately controlled, and meanwhile, the method has the advantages of being simple to implement and low in cost.
Fig. 5 is a flowchart of a control method of a fresh air system according to another embodiment of the present invention, and as shown in fig. 5, based on the embodiment shown in fig. 2, the step S105 of "acquiring a cooling load required by fresh air cooling of the fresh air system" may specifically include:
s401, obtaining the outdoor environment temperature and the indoor environment temperature.
In the embodiment of the invention, the outdoor side and the indoor side of the fresh air system can be provided with the temperature sensors, and the outdoor environment temperature and the indoor environment temperature can be obtained through the temperature sensors.
And S402, calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
In the embodiment of the invention, after the outdoor environment temperature and the indoor environment temperature are obtained in the step S401, the cold load is calculated according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started. Specifically, the cooling load can be calculated by using a formula: q ═ cp · (ρ)Air (a)V) · (T4-T1), whichIn the formula, q is a cooling load; v is the fresh air volume flow corresponding to the gear of the fan; t4 is outdoor ambient temperature; t1 is the indoor ambient temperature; cp is the constant pressure specific heat capacity of air; rhoAir (a)Is the air density.
According to the control method of the fresh air system provided by the embodiment of the invention, the cooling load required by fresh air cooling of the fresh air system can be accurately and effectively calculated according to the outdoor environment temperature and the indoor environment temperature.
The following describes the control method of the fresh air system in an embodiment of the present invention in detail by taking the concentration level (interval) as a low concentration level (interval), a medium concentration level (interval), and a high concentration level (interval) as examples, and fig. 6 is a specific flowchart of the control method of the fresh air system according to an embodiment of the present invention, and as shown in fig. 6, the control method of the fresh air system may specifically include:
s501, periodically acquiring the concentration n of indoor carbon dioxide.
S502, judging whether n is less than a concentration threshold value.
If yes, go to step S503; if not, the process proceeds to step S506.
And S503, judging whether the first humidity is equal to or larger than the sum of the second humidity and the preset difference humidity.
If yes, go to step S504; if not, the process proceeds to step S505.
S504, the control valve is controlled to be closed, the fan is started, the gear when the fan is started is set to be a set gear, and the step S503 is returned.
And S505, controlling the control valve to be closed, and not starting the fan.
And S506, determining a concentration level (section) corresponding to the concentration n of the carbon dioxide according to the concentration n of the carbon dioxide.
When the density level (section) corresponding to n is a low density level (section), the process proceeds to step S507;
when the density level (section) corresponding to n is a medium density level (section), the process proceeds to step S508;
when the density level (section) corresponding to n is a high density level (section), the process proceeds to step S509.
And S507, starting the fan, controlling the gear of the fan to be 1, and entering the step S510.
And S508, starting the fan, controlling the fan to be in the gear 2, and entering the step S510.
S509, the fan is started, the gear of the fan is controlled to be gear 3, and the step S510 is entered.
In the embodiment of the invention, the gears from the gear 1 to the gear 3 of the fan are gradually increased.
And S510, acquiring the outdoor environment temperature and the indoor environment temperature.
And S511, calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
S512, acquiring the temperature of the cooling water.
And S513, calculating the opening degree of the control valve according to the cooling load and the temperature of the cooling water.
And S514, controlling the control valve according to the opening degree.
And S515, judging whether the second humidity is smaller than a preset humidity threshold value.
If yes, go to step S516; if not, the process proceeds to step S517.
And S516, controlling the upper air outlet guide vane and the lower air outlet guide vane to be opened.
And S517, controlling the upper air outlet guide vane to be opened and controlling the lower air outlet guide vane to be closed.
According to the control method of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; acquiring the temperature of cooling water; calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water; the control valve is controlled according to the opening degree. Determining whether to start the fan and setting a gear when the fan is started according to the concentration of indoor carbon dioxide, first humidity in the ventilation pipeline, second humidity at an air inlet of the air inlet device and preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
Fig. 7 is a structural diagram of a fresh air system control device according to an embodiment of the present invention, the fresh air system including: the cooling wet film is arranged between the top surface and the bottom surface of the ventilating pipeline between the outdoor air inlet device and the indoor air outlet device, the first humidity sensor is arranged on the side surface of the cooling wet film close to the air outlet direction, and the second humidity sensor and the control valve are arranged at the air inlet of the air inlet device; the cooling wet film is used for storing the cooling water of input, and first humidity transducer is used for detecting the first humidity in the air pipe, and second humidity transducer is used for detecting the second humidity of air intake installation air intake department, and the control valve is used for the flow of the cooling water of control input to the cooling wet film, and the cooling water is the comdenstion water that the air conditioner produced in the refrigeration process, as shown in figure 7, this new trend system controlling means includes:
a first obtaining module 31, configured to periodically obtain a concentration of indoor carbon dioxide;
the first judgment module 32 is configured to judge whether the concentration of the carbon dioxide is smaller than a preset concentration threshold;
the starting setting module 33 is used for controlling the control valve to be closed, starting the fan and setting a gear when the fan is started as a set gear if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity;
the starting determining module 34 is used for starting the fan if the carbon dioxide is not in the air supply, and determining the gear when the fan is started according to the concentration of the carbon dioxide;
the second obtaining module 35 is configured to obtain a cooling load required by fresh air cooling of the fresh air system according to a gear when the fan is turned on;
a third obtaining module 36, configured to obtain a temperature of the cooling water;
a calculation module 37, configured to calculate an opening degree of the control valve according to the cooling load and the temperature of the cooling water;
and a first control module 38 for controlling the control valve based on the opening.
It should be noted that the explanation of the embodiment of the fresh air system control method is also applicable to the fresh air system control device of the embodiment, and is not repeated here.
According to the control device of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; acquiring the temperature of cooling water; calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water; the control valve is controlled according to the opening degree. Determining whether to start the fan and setting a gear when the fan is started according to the concentration of indoor carbon dioxide, first humidity in the ventilation pipeline, second humidity at an air inlet of the air inlet device and preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
Further, in a possible implementation manner of the embodiment of the present invention, the set gear is a lowest gear of the fan.
Further, in a possible implementation manner of the embodiment of the present invention, the start setting module 33 is further configured to: if the first humidity is smaller than the sum, the control valve is controlled to be closed, and the fan is not started.
Further, in a possible implementation manner of the embodiment of the present invention, the control device further includes: the second judgment module is used for judging whether the second humidity is smaller than a preset humidity threshold value; the second control module is used for controlling the upper air outlet guide vane and the lower air outlet guide vane to be opened if the upper air outlet guide vane and the lower air outlet guide vane are opened; if not, the upper air outlet guide vane is controlled to be opened, and the lower air outlet guide vane is controlled to be closed.
Further, in a possible implementation manner of the embodiment of the present invention, the cooling water is condensed water generated in a cooling process of the air conditioner.
Further, in a possible implementation manner of the embodiment of the present invention, the start determining module 34 is specifically configured to: determining a concentration grade or a concentration interval corresponding to the concentration of the carbon dioxide according to the concentration of the carbon dioxide; and determining the gear when the fan is started according to the concentration grade or the concentration interval.
Further, in a possible implementation manner of the embodiment of the present invention, the start determining module 34 is specifically configured to: the higher the concentration of the carbon dioxide corresponding to the concentration grade or the concentration interval is, the larger the gear when the fan is started is.
Further, in a possible implementation manner of the embodiment of the present invention, the second obtaining module 35 is specifically configured to: acquiring an outdoor environment temperature and an indoor environment temperature; and calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
It should be noted that the explanation of the embodiment of the fresh air system control method is also applicable to the fresh air system control device of the embodiment, and is not repeated here.
According to the control device of the fresh air system provided by the embodiment of the invention, the concentration of indoor carbon dioxide is periodically obtained; judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not; if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to close, starting the fan, and setting a gear when the fan is started as a set gear; if not, starting the fan, and determining the gear when the fan is started according to the concentration of the carbon dioxide; acquiring a cold load required by fresh air cooling of a fresh air system according to a gear when a fan is started; acquiring the temperature of cooling water; calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water; the control valve is controlled according to the opening degree. Determining whether to start the fan and setting a gear when the fan is started according to the concentration of indoor carbon dioxide, first humidity in the ventilation pipeline, second humidity at an air inlet of the air inlet device and preset difference humidity; and calculating the opening of the control valve according to the cooling load required by fresh air cooling and the temperature of cooling water, and controlling the control valve according to the opening. The opening and the gear position of the fresh air system can be accurately controlled, and when the indoor carbon dioxide concentration is low but the humidity in the ventilation pipeline is high, the fan is started to supply air, so that the ventilation pipeline can be prevented from mildewing; the amount of cooling water stored in the cooling wet film is controlled by the control valve, so that the fresh air supply temperature can be accurately reduced by the cooling wet film; meanwhile, the method also has the advantages of simple implementation and low cost.
In order to implement the above embodiment, an embodiment of the present invention further provides a fresh air system 40, as shown in fig. 8, including: the control device 41 of the fresh air system shown in the above embodiment.
In order to implement the above embodiment, the embodiment of the present invention further provides an electronic device 50, as shown in fig. 9, which includes a memory 51 and a processor 52. The memory 51 stores a computer program that can be executed on the processor 52, and the processor 52 executes the program to implement the control method of the fresh air system as described in the above embodiments.
In order to implement the foregoing embodiments, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the control method of the fresh air system as described in the foregoing embodiments is implemented.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (17)

1. A control method of a fresh air system is characterized in that the fresh air system comprises: the air conditioner comprises a cooling wet film, a first humidity sensor, a second humidity sensor and a control valve, wherein the cooling wet film is arranged between the top surface and the bottom surface of a ventilating pipeline between an outdoor air inlet device and an indoor air outlet device; the cooling wet film is used for storing the cooling water of input, first humidity transducer is used for detecting first humidity in the air pipe, second humidity transducer is used for detecting the second humidity of air intake device air intake department, control valve is used for the control input extremely the cooling wet film the flow of cooling water, the cooling water is the comdenstion water that the air conditioner produced in the refrigeration process, control method includes:
periodically acquiring the concentration of indoor carbon dioxide;
judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not;
if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, controlling the control valve to be closed, starting the fan, and setting a gear when the fan is started as a set gear to prevent the ventilation pipeline from mildewing;
if not, starting the fan, and determining a gear when the fan is started according to the concentration of the carbon dioxide;
acquiring a cold load required by fresh air cooling of the fresh air system according to the gear when the fan is started;
acquiring the temperature of the cooling water;
calculating the opening degree of the control valve according to the cold load and the temperature of the cooling water;
and controlling the control valve according to the opening degree.
2. The control method according to claim 1, wherein the set gear is a lowest gear of the fan.
3. The control method according to claim 1, characterized by further comprising:
if the first humidity is smaller than the sum, the control valve is controlled to be closed, and the fan is not started.
4. The control method according to claim 1, wherein an upper air outlet guide vane is arranged at an upper air outlet of the air outlet device, and a lower air outlet guide vane is arranged at a lower air outlet of the air outlet device; after the controlling the control valve, the control method further includes:
judging whether the second humidity is smaller than a preset humidity threshold value or not;
if so, controlling the upper air outlet guide vane and the lower air outlet guide vane to be opened;
if not, the upper air outlet guide vane is controlled to be opened, and the lower air outlet guide vane is controlled to be closed.
5. The control method according to claim 1, wherein the determining the gear at which the fan is turned on according to the concentration of the carbon dioxide comprises:
determining a concentration grade or a concentration interval corresponding to the concentration of the carbon dioxide according to the concentration of the carbon dioxide;
and determining the gear when the fan is started according to the concentration grade or the concentration interval.
6. The control method according to claim 5, wherein the determining the gear when the fan is turned on according to the concentration level or the concentration interval comprises:
the higher the concentration of the carbon dioxide corresponding to the concentration grade or the concentration interval is, the larger the gear when the fan is started is.
7. The control method according to claim 1, wherein the obtaining of the cooling load required by the fresh air cooling of the fresh air system according to the gear when the fan is turned on comprises:
acquiring an outdoor environment temperature and an indoor environment temperature;
and calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
8. The utility model provides a controlling means of new trend system which characterized in that, new trend system includes: the air conditioner comprises a cooling wet film, a first humidity sensor, a second humidity sensor and a control valve, wherein the cooling wet film is arranged between the top surface and the bottom surface of a ventilating pipeline between an outdoor air inlet device and an indoor air outlet device; the cooling wet film is used for storing the cooling water of input, first humidity transducer is used for detecting first humidity in the air pipe, second humidity transducer is used for detecting the second humidity of air intake device air intake department, control valve is used for the control input extremely the cooling wet film the flow of cooling water, the cooling water is the comdenstion water that the air conditioner produced at the refrigeration in-process, controlling means includes:
the first acquisition module is used for periodically acquiring the concentration of indoor carbon dioxide;
the first judgment module is used for judging whether the concentration of the carbon dioxide is smaller than a preset concentration threshold value or not;
the opening setting module is used for controlling the control valve to be closed and opening the fan if the first humidity is equal to or greater than the sum of the second humidity and the preset difference humidity, and setting a gear when the fan is opened as a set gear to prevent the ventilation pipeline from mildewing;
the starting determining module is used for starting the fan if the carbon dioxide is not in the preset range, and determining the gear when the fan is started according to the concentration of the carbon dioxide;
the second acquisition module is used for acquiring the cold load required by the fresh air cooling of the fresh air system according to the gear when the fan is started;
the third acquisition module is used for acquiring the temperature of the cooling water;
the calculation module is used for calculating the opening of the control valve according to the cold load and the temperature of the cooling water;
and the first control module is used for controlling the control valve according to the opening degree.
9. The control device according to claim 8, wherein the set gear is a lowest gear of the fan.
10. The control device of claim 8, wherein the activation setting module is further configured to:
if the first humidity is smaller than the sum, the control valve is controlled to be closed, and the fan is not started.
11. The control device according to claim 8, wherein an upper air outlet vane is provided at an upper air outlet of the air outlet device, and a lower air outlet vane is provided at a lower air outlet of the air outlet device, the control device further comprising:
the second judgment module is used for judging whether the second humidity is smaller than a preset humidity threshold value;
the second control module is used for controlling the upper air outlet guide vane and the lower air outlet guide vane to be opened if the upper air outlet guide vane and the lower air outlet guide vane are opened; if not, the upper air outlet guide vane is controlled to be opened, and the lower air outlet guide vane is controlled to be closed.
12. The control device according to claim 8, wherein the activation determination module is specifically configured to:
determining a concentration grade or a concentration interval corresponding to the concentration of the carbon dioxide according to the concentration of the carbon dioxide;
and determining the gear when the fan is started according to the concentration grade or the concentration interval.
13. The control device according to claim 12, wherein the activation determination module is specifically configured to:
the higher the concentration of the carbon dioxide corresponding to the concentration grade or the concentration interval is, the larger the gear when the fan is started is.
14. The control device according to claim 8, wherein the second obtaining module is specifically configured to:
acquiring an outdoor environment temperature and an indoor environment temperature;
and calculating to obtain the cold load according to the outdoor environment temperature, the indoor environment temperature and the gear when the fan is started.
15. A fresh air system, comprising: a control device for a fresh air system as claimed in any one of claims 8 to 14.
16. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and operable on the processor, the processor implementing the control method of the fresh air system as claimed in any one of claims 1 to 7 when executing the program.
17. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements a control method for a fresh air system according to any of claims 1 to 7.
CN201811501295.5A 2018-12-10 2018-12-10 Control method and device of fresh air system and fresh air system Active CN109612011B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811501295.5A CN109612011B (en) 2018-12-10 2018-12-10 Control method and device of fresh air system and fresh air system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811501295.5A CN109612011B (en) 2018-12-10 2018-12-10 Control method and device of fresh air system and fresh air system

Publications (2)

Publication Number Publication Date
CN109612011A CN109612011A (en) 2019-04-12
CN109612011B true CN109612011B (en) 2021-06-18

Family

ID=66006921

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811501295.5A Active CN109612011B (en) 2018-12-10 2018-12-10 Control method and device of fresh air system and fresh air system

Country Status (1)

Country Link
CN (1) CN109612011B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117659A1 (en) * 2019-12-20 2021-07-08 Stiebel Eltron Gmbh & Co. Kg Ventilation device and method for controlling a ventilation device
CN111207488A (en) * 2020-01-10 2020-05-29 珠海格力电器股份有限公司 Fresh air conditioner control method and device, storage medium and fresh air conditioner

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001317821A (en) * 2000-05-11 2001-11-16 Babcock Hitachi Kk Air heat source type cooling apparatus and cooling method using the same
JP2007178099A (en) * 2005-12-28 2007-07-12 Daikin Ind Ltd Air conditioner
CN101105328A (en) * 2007-08-08 2008-01-16 张品莹 Explosion-proof air-conditioner fresh air inlet cold energy reclamation device
CN201706607U (en) * 2010-07-09 2011-01-12 吴宗耀 Household fresh air device
CN103335363A (en) * 2013-05-22 2013-10-02 华中科技大学 Control device and control method for integral centralized air processing system
CN204006439U (en) * 2014-07-31 2014-12-10 广东美的暖通设备有限公司 Air-treatment unit
CN104242115A (en) * 2014-10-15 2014-12-24 国家电网公司 Ring main unit anti-dew system
CN105180317A (en) * 2015-08-06 2015-12-23 南京工业大学 Fresh air energy-saving processing system and method in temperature and humidity independent processing air-conditioner system
CN205372939U (en) * 2016-01-29 2016-07-06 四川省建筑科学研究院 Take comdenstion water to spray new fan of full heat recovery of function
CN106440118A (en) * 2016-11-03 2017-02-22 飒爽智能技术（上海）有限公司 Dehumidifying and oxygen purifying system
CN106765706A (en) * 2016-12-29 2017-05-31 武汉嘉荣医疗净化工程有限公司 A kind of energy-saving fresh air purifying air-conditioning system of asking for
CN106801949A (en) * 2017-03-23 2017-06-06 福州鹏飞制冷设备有限公司 A kind of energy-saving fresh air processing equipment
CN107228428A (en) * 2017-07-17 2017-10-03 西安建筑科技大学 A kind of full air-conditioning system of family formula fresh air purifying
CN107421003A (en) * 2017-07-10 2017-12-01 上海理工大学 Embedded window aeration device
WO2018009052A1 (en) * 2016-07-05 2018-01-11 Saw Gee Shyang A method of producing bio-fertiliser
CN107658829A (en) * 2017-11-14 2018-02-02 贵州电网有限责任公司 A kind of cable duct intelligent aeration dehumidification system
CN207122999U (en) * 2017-08-30 2018-03-20 北京致绿室内环境科技有限公司 It is a kind of that the multifunctional new wind processing equipment efficiently to dehumidify is realized by fresh air sensible heat self-exchange
CN207350664U (en) * 2017-03-23 2018-05-11 南京慧和建筑技术有限公司 One kind humidification filtering integral Fresh air handling units
CN108180542A (en) * 2017-12-22 2018-06-19 中建三局第建设工程有限责任公司 Multifunctional heat pump type domestic air conditioner and control method
CN108518764A (en) * 2018-03-15 2018-09-11 浙江盾安自控科技有限公司 A kind of combined air processing group air-supply humiture accuracy-control system and method
CN108592335A (en) * 2018-04-27 2018-09-28 广东美的制冷设备有限公司 Inletting fresh air control method, air conditioner and the readable storage medium storing program for executing of air conditioner

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001317821A (en) * 2000-05-11 2001-11-16 Babcock Hitachi Kk Air heat source type cooling apparatus and cooling method using the same
JP2007178099A (en) * 2005-12-28 2007-07-12 Daikin Ind Ltd Air conditioner
CN101105328A (en) * 2007-08-08 2008-01-16 张品莹 Explosion-proof air-conditioner fresh air inlet cold energy reclamation device
CN201706607U (en) * 2010-07-09 2011-01-12 吴宗耀 Household fresh air device
CN103335363A (en) * 2013-05-22 2013-10-02 华中科技大学 Control device and control method for integral centralized air processing system
CN204006439U (en) * 2014-07-31 2014-12-10 广东美的暖通设备有限公司 Air-treatment unit
CN104242115A (en) * 2014-10-15 2014-12-24 国家电网公司 Ring main unit anti-dew system
CN105180317A (en) * 2015-08-06 2015-12-23 南京工业大学 Fresh air energy-saving processing system and method in temperature and humidity independent processing air-conditioner system
CN205372939U (en) * 2016-01-29 2016-07-06 四川省建筑科学研究院 Take comdenstion water to spray new fan of full heat recovery of function
WO2018009052A1 (en) * 2016-07-05 2018-01-11 Saw Gee Shyang A method of producing bio-fertiliser
CN106440118A (en) * 2016-11-03 2017-02-22 飒爽智能技术（上海）有限公司 Dehumidifying and oxygen purifying system
CN106765706A (en) * 2016-12-29 2017-05-31 武汉嘉荣医疗净化工程有限公司 A kind of energy-saving fresh air purifying air-conditioning system of asking for
CN106801949A (en) * 2017-03-23 2017-06-06 福州鹏飞制冷设备有限公司 A kind of energy-saving fresh air processing equipment
CN207350664U (en) * 2017-03-23 2018-05-11 南京慧和建筑技术有限公司 One kind humidification filtering integral Fresh air handling units
CN107421003A (en) * 2017-07-10 2017-12-01 上海理工大学 Embedded window aeration device
CN107228428A (en) * 2017-07-17 2017-10-03 西安建筑科技大学 A kind of full air-conditioning system of family formula fresh air purifying
CN207122999U (en) * 2017-08-30 2018-03-20 北京致绿室内环境科技有限公司 It is a kind of that the multifunctional new wind processing equipment efficiently to dehumidify is realized by fresh air sensible heat self-exchange
CN107658829A (en) * 2017-11-14 2018-02-02 贵州电网有限责任公司 A kind of cable duct intelligent aeration dehumidification system
CN108180542A (en) * 2017-12-22 2018-06-19 中建三局第建设工程有限责任公司 Multifunctional heat pump type domestic air conditioner and control method
CN108518764A (en) * 2018-03-15 2018-09-11 浙江盾安自控科技有限公司 A kind of combined air processing group air-supply humiture accuracy-control system and method
CN108592335A (en) * 2018-04-27 2018-09-28 广东美的制冷设备有限公司 Inletting fresh air control method, air conditioner and the readable storage medium storing program for executing of air conditioner

Also Published As

Publication number Publication date
CN109612011A (en) 2019-04-12

Similar Documents

Publication Publication Date Title
CN108679789B (en) Control method and device of air conditioning system
CN109612012B (en) Control method and device of fresh air system and fresh air system
CN110056978B (en) Humidification control method using air conditioner condensed water
CN110895010B (en) Air conditioner control method and device, storage medium and air conditioner
CN108548242B (en) Control method and device of air conditioning system
CN103673107B (en) Air conditioner and control method and device thereof
CN105627495B (en) A kind of air conditioner and its leakproof water controling method
CN108561980B (en) Control method and device of air conditioning system
CN109612011B (en) Control method and device of fresh air system and fresh air system
WO2019223301A1 (en) Air conditioner control method and control device and air conditioner using the method
CN106461256A (en) Ventilation device
CN108548252B (en) Control method and device of air conditioning system
CN103582786A (en) Air conditioning system and air conditioning control method for server room management
CN111928346B (en) Kitchen air conditioning system control method
CN113203165B (en) Noise reduction control method and device for multi-connected air conditioner and multi-connected air conditioner
CN107894045B (en) Throttling control method and device of air conditioning system and air conditioner
CN108561981B (en) Control method and device of air conditioning system
CN114738958B (en) Variable frequency air conditioner load optimization regulation and control method and system
CN111306855A (en) Refrigerant heating control method and device for improving stability and air conditioning equipment
CN108548294B (en) Control method and device of air conditioning system
CN109595734B (en) Control method and device of fresh air system and fresh air system
CN106871374B (en) Humidification control method, device and system and air conditioner
CN116678041A (en) Humidification method and control device for household appliance and household appliance
CN109612010B (en) Control method and device of fresh air system and fresh air system
CN102135294A (en) Air conditioner for communication base station

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant