CN114857735B - Air-conditioning air-water system control method, device and equipment without electric water regulating valve - Google Patents
Air-conditioning air-water system control method, device and equipment without electric water regulating valve Download PDFInfo
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- CN114857735B CN114857735B CN202210387927.XA CN202210387927A CN114857735B CN 114857735 B CN114857735 B CN 114857735B CN 202210387927 A CN202210387927 A CN 202210387927A CN 114857735 B CN114857735 B CN 114857735B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- 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
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application relates to the technical field of air conditioners, in particular to an air-conditioning air-water system control method, device, equipment and storage medium without an electric adjusting water valve, wherein the method comprises the following steps: acquiring the actual fan frequency and the indoor actual temperature of each air conditioning unit, and calculating according to the actual fan frequency and the indoor actual temperature of each air conditioning unit to obtain a comprehensive indoor temperature deviation index; determining an outlet water temperature adjusting value of the water chilling unit according to the comprehensive indoor temperature deviation index, and adjusting the outlet water temperature of the water chilling unit based on the adjusting value; and determining the fan frequency adjusting value of each air conditioning unit according to the actual outlet water temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and adjusting the fan frequency of each air conditioning unit based on the fan frequency adjusting value of each air conditioning unit. Therefore, the problems that in the related art, the electric adjusting water valve of the air conditioner tail end unit is frequently broken down, so that the water flow passing through the air conditioner unit cannot be adjusted, the tail end is excessively cooled, and the energy consumption of an air conditioning system is greatly wasted are solved.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air-conditioning air-water system control method, device, equipment and storage medium without an electric adjusting water valve.
Background
At present, the control scheme of the air-conditioning air-water system comprises the following steps: the indoor temperature is controlled within a given range by acquiring the indoor air temperature and the air quality and adjusting the opening of an electric adjusting water valve and the frequency of a fan; the temperature difference between the indoor temperature and the supply and return water temperature of the chilled water is controlled at a set value by acquiring the return air temperature and the supply and return water temperature, adjusting the frequency of a fan and electrically adjusting the opening degree of a water valve; collecting the static pressure difference of the air feeder to adjust the frequency of the air feeder, adjusting the opening of an electric adjusting water valve by the temperature difference, controlling the indoor temperature within a given range, and the like.
However, in actual operation, the electric adjusting water valve of the air conditioner terminal unit often breaks down, the common faults are mainly 2 types, and the type 1 is that the water valve cannot move to a specified position due to the fact that installation, debugging or maintenance is not in place; the other type 1 is that the electric water regulating valve of the air conditioning terminal unit needs to be operated in a normally open state and cannot be subjected to opening degree regulation in order to guarantee the requirement of the lowest flow rate of the operation of the water chilling unit due to the fact that the differential pressure bypass valve of the water collecting and distributing device of the freezing station frequently breaks down. When an electric water regulating valve of the air conditioner tail end unit breaks down, the water flow of the air conditioner tail end unit is out of control and cannot be regulated, meanwhile, the air conditioner tail end is often in an excessive cooling state due to the fact that the water flow cannot be regulated, and the running energy consumption of an air conditioning system is high.
Therefore, when the air conditioning tail end unit is adjusted through the frequency of the fan and the opening degree of the electric adjusting water valve in the related technology, once the electric adjusting water valve of the air conditioner breaks down, the cooling capacity supplied by the air conditioning tail end cannot be effectively controlled, and the energy consumption of an air conditioning system is easily wasted.
Disclosure of Invention
The application provides an air-conditioning air-water system control method without an electric adjusting water valve, a device, electronic equipment and a storage medium, and aims to solve the problems that in the related art, the electric adjusting water valve of an air-conditioning terminal unit often breaks down, so that the water flow passing through the air-conditioning unit cannot be adjusted, the terminal excessively supplies cold, the energy consumption of the air-conditioning system is greatly wasted, and the like.
The embodiment of the first aspect of the application provides a control method for an air-conditioning air-water system without an electric adjusting water valve, which comprises the following steps: acquiring actual fan frequency and indoor actual temperature of each air conditioning unit, and calculating according to the actual fan frequency and the indoor actual temperature of each air conditioning unit to obtain a comprehensive indoor temperature deviation index; determining an outlet water temperature adjusting value of the water chilling unit according to the comprehensive indoor temperature deviation index, and adjusting the outlet water temperature of the water chilling unit based on the adjusting value; and determining the fan frequency regulating value of each air conditioning unit according to the actual water outlet temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and regulating the fan frequency of each air conditioning unit based on the fan frequency regulating value of each air conditioning unit.
Further, the determining the fan frequency adjusting value of each air conditioning unit according to the actual outlet water temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and adjusting the fan frequency of each air conditioning unit based on the fan frequency adjusting value of each air conditioning unit includes: adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature; when the actual return air temperature is in a first temperature range, if the actual fan frequency of any air conditioning unit is smaller than the target upper limit value, the fan frequency of any air conditioning unit is adjusted according to a first preset frequency up-regulation strategy, and if the actual fan frequency of any air conditioning unit is larger than or equal to the target upper limit value, the fan frequency of any air conditioning unit is kept unchanged; when the actual return air temperature is in a second temperature interval, maintaining the fan frequency of each air conditioning unit unchanged; when the actual return air temperature is in a third temperature interval, if the actual fan frequency of any air conditioning unit is greater than the target lower limit value, the fan frequency of any air conditioning unit is adjusted downwards according to a first preset frequency adjustment strategy, and if the actual fan frequency is less than or equal to the target lower limit value, the fan frequency of any air conditioning unit is maintained unchanged.
Further, the adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature comprises: when the actual outlet water temperature is in a fourth temperature interval and lasts for a first preset time length, the preset upper limit value is adjusted downwards according to a second preset frequency adjustment strategy to obtain the target upper limit value; when the outlet water temperature is in a fifth temperature range, maintaining a preset upper limit value and a preset lower limit value of the fan frequency unchanged; and when the actual outlet water temperature is in a sixth temperature interval and continues for a second preset time length, the preset lower limit value is adjusted upwards according to a second preset frequency up-regulation strategy, and the target lower limit value is obtained.
Further, the determining an outlet water temperature adjustment value of the water chilling unit according to the comprehensive indoor temperature deviation index, and adjusting the outlet water temperature of the water chilling unit based on the adjustment value includes: when the comprehensive indoor temperature deviation index is in a first index interval, if the actual outlet water temperature is greater than a preset temperature lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards according to a preset temperature lower adjustment strategy, and if the actual outlet water temperature is less than or equal to the preset temperature lower limit value, the outlet water temperature of the water chilling unit is kept unchanged; when the comprehensive indoor temperature deviation index is in a second index interval, keeping the outlet water temperature of the water chilling unit unchanged; when the comprehensive indoor temperature deviation index is in a third index interval, if the indoor air moisture content is smaller than the preset moisture content upper limit value, the water outlet temperature of the water chilling unit is adjusted upwards according to a preset temperature increasing strategy, and if the indoor air moisture content is larger than or equal to the preset moisture content upper limit value, the water outlet temperature of the water chilling unit is kept unchanged.
Further, the method also comprises the following steps: collecting the indoor dry bulb temperature and the relative humidity of each room; and calculating the indoor air moisture content of each room according to the dry bulb temperature and the relative humidity.
Further, the calculating according to the actual fan frequency of each air conditioning unit and the actual indoor temperature to obtain a comprehensive indoor temperature deviation index includes: collecting the actual air supply temperature of each air conditioning unit; calculating to obtain the actual operation air volume of each air conditioning unit according to the actual fan frequency of each air conditioning unit; and calculating to obtain a comprehensive indoor temperature deviation index according to the actual air supply temperature of each air conditioning unit, the actual operation air volume of each air conditioning unit and the indoor dry bulb temperature of each room.
An embodiment of a second aspect of the present application provides an air-conditioning air-water system control device without an electric water-conditioning valve, including: the acquisition module is used for acquiring the actual fan frequency and the indoor actual temperature of each air conditioning unit; the first calculation module is used for calculating to obtain a comprehensive indoor temperature deviation index according to the actual fan frequency of each air conditioning unit and the indoor actual temperature; the first adjusting module is used for determining an outlet water temperature adjusting value of the water chilling unit according to the comprehensive indoor temperature deviation index and adjusting the outlet water temperature of the water chilling unit based on the adjusting value; and the second adjusting module is used for determining the fan frequency adjusting value of each air conditioning unit according to the actual water outlet temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and adjusting the fan frequency of each air conditioning unit based on the fan frequency adjusting value of each air conditioning unit.
Further, the second adjusting module is configured to: adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature; when the actual return air temperature is in a first temperature range, if the actual fan frequency of any air conditioning unit is smaller than the target upper limit value, the fan frequency of any air conditioning unit is adjusted upwards according to a first preset frequency up-regulation strategy, and if the actual fan frequency of any air conditioning unit is larger than or equal to the target upper limit value, the fan frequency of any air conditioning unit is kept unchanged; when the actual return air temperature is in a second temperature interval, maintaining the fan frequency of each air conditioning unit unchanged; when the actual return air temperature is in a third temperature interval, if the actual fan frequency of any air conditioning unit is greater than the target lower limit value, the fan frequency of any air conditioning unit is adjusted downwards according to a first preset frequency adjustment strategy, and if the actual fan frequency is less than or equal to the target lower limit value, the fan frequency of any air conditioning unit is maintained unchanged.
Further, the second adjusting module is further configured to: when the actual outlet water temperature is in a fourth temperature interval and lasts for a first preset time length, the preset upper limit value is adjusted downwards according to a second preset frequency adjustment strategy to obtain the target upper limit value; when the outlet water temperature is in a fifth temperature interval, maintaining a preset upper limit value and a preset lower limit value of the fan frequency unchanged; and when the actual outlet water temperature is in a sixth temperature interval and continues for a second preset time length, the preset lower limit value is adjusted upwards according to a second preset frequency up-regulation strategy, and the target lower limit value is obtained.
Further, the first adjusting module is configured to: when the comprehensive indoor temperature deviation index is in a first index interval, if the actual outlet water temperature is greater than a preset temperature lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards according to a preset temperature lower adjustment strategy, and if the actual outlet water temperature is less than or equal to the preset temperature lower limit value, the outlet water temperature of the water chilling unit is maintained unchanged; when the comprehensive indoor temperature deviation index is in a second index interval, maintaining the outlet water temperature of the water chilling unit unchanged; when the comprehensive indoor temperature deviation index is in a third index interval, if the indoor air moisture content is smaller than the preset moisture content upper limit value, the water outlet temperature of the water chilling unit is adjusted upwards according to a preset temperature increasing strategy, and if the indoor air moisture content is larger than or equal to the preset moisture content upper limit value, the water outlet temperature of the water chilling unit is kept unchanged.
Further, the method also comprises the following steps: and the second calculation module is used for acquiring the indoor dry bulb temperature and the indoor relative humidity of each room, and calculating the indoor air moisture content of each room according to the dry bulb temperature and the indoor relative humidity.
Further, the first computing module is to: collecting the actual air supply temperature of each air conditioning unit; calculating to obtain the actual operation air volume of each air conditioning unit according to the actual fan frequency of each air conditioning unit; and calculating to obtain a comprehensive indoor temperature deviation index according to the actual air supply temperature of each air conditioning unit, the actual operation air volume of each air conditioning unit and the indoor dry bulb temperature of each room.
An embodiment of a third aspect of the present application provides an electronic device, including: the air-conditioning and water-saving system control method comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor executes the program to realize the air-conditioning and water-saving system control method without the electric conditioning water-saving valve.
A fourth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, the program being executed by a processor for implementing the method for controlling an air-conditioning water system without an electric conditioning water valve as described in the above embodiments.
Therefore, the application has at least the following beneficial effects:
the air conditioning system does not need to design an electric adjusting water valve, and is not provided with the electric adjusting water valve, so that a series of costs of equipment purchase, installation, debugging, maintenance and the like of the electric adjusting water valve of the air conditioning system are saved; the electric water regulating valve is not arranged, so that the pipe network resistance of a water system is reduced, the type selection of water pump equipment can be reduced, and the investment cost and the operation energy consumption of the water pump are effectively reduced; the problem that the flow of a water system cannot be adjusted due to the fault of an electric adjusting water valve and the excessive cooling condition at the tail end of an air conditioner can be avoided, and energy waste is avoided. Therefore, the technical problems that in the related art, the electric adjusting water valve of the air conditioner tail end unit is frequently broken down, so that the water flow passing through the air conditioner unit cannot be adjusted, the tail end supplies cold excessively, energy consumption of an air conditioning system is wasted greatly and the like are solved.
Additional aspects and advantages of the present application 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 present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of an air-conditioning air-water system control method without an electric adjusting water valve according to an embodiment of the application;
fig. 2 is a flowchart of a method for adjusting the outlet water temperature of a water chilling unit according to an embodiment of the present application;
fig. 3 is a flowchart of a method for adjusting a fan frequency of an air conditioning unit according to an embodiment of the present application;
FIG. 4 is a flow chart of a method for coordinating operation of a wind and water system according to an embodiment of the present application;
fig. 5 is an exemplary diagram of a control module of an air-conditioning air-water system without an electric water regulating valve provided in an embodiment of the application;
fig. 6 is an exemplary diagram of an air-conditioning air-water system control device without an electrically-adjusted water valve, provided according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, 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 exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
An air-conditioning air-water system control method, an apparatus, an electronic device, and a storage medium without an electric adjustment water valve according to embodiments of the present application will be described below with reference to the accompanying drawings. Specifically, fig. 1 is a schematic flow chart of a control method for an air-conditioning and water-conditioning system without an electric water-conditioning valve according to an embodiment of the present application.
As shown in fig. 1, the control method of the air-conditioning air-water system without the electric water regulating valve comprises the following steps:
in step S101, the actual fan frequency and the actual indoor temperature of each air conditioning unit are collected, and a comprehensive indoor temperature deviation index is calculated according to the actual fan frequency and the actual indoor temperature of each air conditioning unit.
In this application embodiment, calculate according to the actual fan frequency and the indoor actual temperature of each air conditioning unit and obtain comprehensive indoor temperature deviation index, include: collecting the actual air supply temperature of each air conditioning unit; calculating to obtain the actual operation air volume of each air conditioning unit according to the actual fan frequency of each air conditioning unit; and calculating to obtain a comprehensive indoor temperature deviation index according to the actual air supply temperature of each air conditioning unit, the actual operation air volume of each air conditioning unit and the indoor dry bulb temperature of each room.
Wherein, the indoor dry bulb temperature refers to the indoor actual temperature.
It can be understood that, the embodiment of the application can collect the fan frequency of the air conditioning unit, calculate the operation air volume of each air conditioning unit according to the fan frequency of each air conditioning unit, collect the air supply temperature of each air conditioning unit and the indoor dry bulb temperature of each indoor room, and calculate the comprehensive indoor temperature deviation index according to the air volume, the air supply temperature and the indoor temperatures of each room.
In step S102, an outlet water temperature adjustment value of the chiller is determined according to the comprehensive indoor temperature deviation index, and the outlet water temperature of the chiller is adjusted based on the adjustment value.
In this application embodiment, according to synthesizing the indoor temperature deviation index and confirming the play water temperature regulating value of cooling water set to adjust the play water temperature of cooling water set based on the regulating value, include: when the comprehensive indoor temperature deviation index is in a first index interval, if the actual outlet water temperature is greater than the preset temperature lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards according to a preset temperature down-adjusting strategy, and if the actual outlet water temperature is less than or equal to the preset temperature lower limit value, the outlet water temperature of the water chilling unit is kept unchanged; when the comprehensive indoor temperature deviation index is in the second index interval, the outlet water temperature of the water chilling unit is kept unchanged; and when the comprehensive indoor temperature deviation index is in a third index interval, if the indoor air moisture content is smaller than the upper limit value of the preset moisture content, the outlet water temperature of the water chilling unit is adjusted upwards according to a preset temperature increasing strategy, and if the indoor air moisture content is larger than or equal to the upper limit value of the preset moisture content, the outlet water temperature of the water chilling unit is maintained unchanged.
The method and the device can acquire the indoor dry bulb temperature and the indoor relative humidity of each room, and calculate the indoor air moisture content of each room according to the dry bulb temperature and the indoor relative humidity; meanwhile, in order to avoid that the humidity content of the indoor air is too high and indoor discomfort or condensation phenomenon may occur, the upper limit value of the humidity content of the air is set, and the upper limit value of the humidity content may be set according to actual conditions, which is not particularly limited.
The lower limit of the outlet water temperature regulation of the water chilling unit, namely the preset temperature lower limit value, can be set according to the characteristics of the water chilling unit, and is not particularly limited.
The first to third index intervals may be set according to actual conditions, and are not particularly limited thereto. For example, the first index section may be set to a section greater than a set value +0.5 ℃, the second index section may be set to [ set value-0.5 ℃, set value +0.5 ℃ ], and the third index section may be set to a section smaller than a set value-0.5 ℃.
The preset temperature down-regulation strategy and the preset temperature up-regulation strategy may be specifically set according to actual conditions, for example, the preset temperature down-regulation strategy may be to down-regulate the water outlet temperature of the water chilling unit by 0.5 ℃, the preset temperature up-regulation strategy may be to up-regulate the water outlet temperature of the water chilling unit by 0.5 ℃, and the like, which is not specifically limited.
It can be understood that, in the embodiment of the present application, the outlet water temperature of the water chiller can be adjusted according to the comprehensive indoor temperature deviation index, for example, as shown in fig. 2, the outlet water temperature adjusting method of the water chiller includes the following steps:
1) When the comprehensive indoor temperature deviation index is larger than a set value plus 0.5 ℃, the outlet water temperature of the water chilling unit is larger than a lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards, and when the outlet water temperature of the water chilling unit is smaller than or equal to the lower limit value, the outlet water temperature of the water chilling unit is maintained;
2) When the set value is less than or equal to minus 0.5 ℃ and less than or equal to plus 0.5 ℃, maintaining the running of the water outlet temperature of the current water chilling unit;
3) When the comprehensive indoor temperature deviation index is less than a set value minus 0.5 ℃, monitoring the indoor moisture content, when the moisture content is less than the maximum value, adjusting the water outlet temperature of the water chiller unit upwards, and when the moisture content is more than or equal to the maximum value, maintaining the current water outlet temperature of the water chiller unit to operate.
In step S103, a fan frequency adjustment value of each air conditioning unit is determined according to the actual outlet water temperature of the chiller and the actual return air temperature of each air conditioning unit, and the fan frequency of each air conditioning unit is adjusted based on the fan frequency adjustment value of each air conditioning unit.
It can be understood that, in combination with steps S102 and S103, in the embodiment of the present application, the frequency of the fan can be adjusted by the return air temperature of the air conditioning unit, the temperature of the outlet water of the chiller can be adjusted by integrating the indoor temperature deviation index, and the indoor temperature can be controlled to meet the requirement; meanwhile, the upper and lower frequency limit set values of the air conditioner fan are adjusted by monitoring the water outlet temperature of the water chilling unit, the coordinated work of an air-water system is realized, and the air system and the water system in the air-water system without an electric water valve are ensured to be in the optimal running state.
In this application embodiment, the fan frequency adjustment value of each air conditioning unit is determined according to the actual outlet water temperature of the cooling water unit and the actual return air temperature of each air conditioning unit, and the fan frequency of each air conditioning unit is adjusted based on the fan frequency adjustment value of each air conditioning unit, includes: adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature; when the actual return air temperature is in a first temperature interval, if the actual fan frequency of any air conditioning unit is smaller than a target upper limit value, the fan frequency of any air conditioning unit is adjusted according to a first preset frequency up-regulation strategy, and if the actual fan frequency of any air conditioning unit is larger than or equal to the target upper limit value, the fan frequency of any air conditioning unit is kept unchanged; when the actual return air temperature is in a second temperature interval, maintaining the fan frequency of each air conditioning unit unchanged; when the actual return air temperature is in a third temperature interval, if the actual fan frequency of any air conditioning unit is greater than the target lower limit value, the fan frequency of any air conditioning unit is adjusted downwards according to a first preset frequency adjustment strategy, and if the actual fan frequency is less than or equal to the target lower limit value, the fan frequency of any air conditioning unit is kept unchanged.
The upper limit value and the lower limit value of the fan frequency regulation can be set according to the fan characteristics of the air conditioning unit, namely the upper limit value and the lower limit value are preset, and specific limitation is not performed on the upper limit value and the lower limit value.
The first to third temperature ranges may be set according to actual conditions, and are not particularly limited. For example, the first temperature zone may be set to a zone greater than the return air temperature control target value +0.5 ℃, the second index zone may be set to [ return air temperature control target value-0.5 ℃, return air temperature control target value +0.5 ℃ ], and the third index zone may be set to a zone smaller than the return air temperature control target value-0.5 ℃.
The first preset frequency up-regulation strategy and the first preset frequency down-regulation strategy may be both specifically set according to an actual situation, for example, the first preset frequency up-regulation strategy may be to up-regulate the fan frequency of the air conditioning unit by 5HZ, and the first preset frequency down-regulation strategy may be to down-regulate the fan frequency of the air conditioning unit by 5HZ, and the like, which is not specifically limited.
It can be understood that, in the embodiment of the present application, the return air temperature of each air conditioning unit is collected, and the fan frequency is adjusted, for example, as shown in fig. 3, the method for adjusting the fan frequency of an air conditioning unit includes the following steps:
1) When the return air temperature is higher than the return air temperature control target and 0.5 ℃, the fan frequency of the air conditioning unit is lower than the upper limit value, the fan frequency of the air conditioning unit is adjusted upwards, the fan frequency of the air conditioning unit is not lower than the upper limit value, and the fan frequency of the air conditioning unit is maintained to operate;
2) When the return air temperature is controlled to be between minus 0.5 ℃ and less than or equal to the return air temperature control target and plus 0.5 ℃, maintaining the frequency operation of the fan of the current air conditioning unit;
3) When the return air temperature is lower than the return air temperature control target minus 0.5 ℃, the frequency of the fan of the air conditioning unit is higher than the lower limit value, the frequency of the fan of the air conditioning unit is reduced, the frequency of the fan of the air conditioning unit is less than or equal to the lower limit value, and the frequency of the fan of the air conditioning unit is maintained to operate.
It should be noted that, for the upper limit value and the lower limit value in fig. 3, if there is no adjustment according to the outlet water temperature, the upper limit value and the lower limit value are preset; if the temperature is adjusted according to the outlet water temperature, the target upper limit value and the target lower limit value are referred to.
In this application embodiment, adjust preset upper limit value and preset lower limit value of the fan frequency of each air conditioning unit to target upper limit value and target lower limit value respectively according to actual leaving water temperature, include: when the actual outlet water temperature is in a fourth temperature interval and lasts for the first preset time length, a preset upper limit value is adjusted downwards according to a second preset frequency adjustment strategy to obtain a target upper limit value; when the outlet water temperature is in a fifth temperature interval, maintaining the preset upper limit value and the preset lower limit value of the fan frequency unchanged; and when the actual outlet water temperature is in the sixth temperature interval and lasts for the second preset time length, the preset lower limit value is adjusted upwards according to a second preset frequency increasing strategy to obtain a target lower limit value.
The fourth to sixth temperature ranges may be set according to actual conditions, and are not particularly limited. For example, the fourth temperature interval may be set to an interval where the outlet water temperature of the chiller is greater than 12 ℃, the fifth temperature interval may be set to [ 8 ℃,12 ℃), and the sixth temperature interval may be set to an interval where the outlet water temperature of the chiller is less than 8 ℃.
The first preset duration and the second preset duration may be set according to an actual situation, for example, the first preset duration and the second preset duration may be set to 1 hour, and the like, which is not specifically limited.
The second preset frequency up-regulation strategy and the second preset frequency down-regulation strategy may be both specifically set according to an actual situation, for example, the second preset frequency up-regulation strategy may be to increase the lower limit value of the fan frequency of the air conditioning unit by 5HZ, and the second preset frequency down-regulation strategy may be to decrease the upper limit value of the fan frequency of the air conditioning unit by 5HZ, and the like, which is not specifically limited.
It can be understood that the embodiment of the application can monitor the temperature of the outlet water of the water chilling unit, adjust the set values of the upper limit and the lower limit of the fan frequency of the air conditioning unit and realize the coordinated work of the air-water system. For example, as shown in fig. 4, the coordinated operation method of the wind and water system includes the following steps:
1) When the outlet water temperature of the water chilling unit is higher than 12 ℃, continuously adjusting for 1 hour, and adjusting the upper limit set value of the fan frequency of the air conditioning unit to be lower by 5HZ;
2) When the water outlet temperature of the water chilling unit is more than or equal to 8 ℃ and less than or equal to 12 ℃, maintaining the upper and lower limit set value of the fan frequency of the air conditioning unit;
3) When the temperature of the outlet water of the water chilling unit is less than 8 ℃ and lasts for 1 hour, the lower limit set value of the fan frequency of the air conditioning unit is adjusted up to 5HZ.
The following will explain the control method of the air-conditioning air-water system without the electric adjusting water valve by a specific embodiment, which is as follows:
1. setting the upper limit f of fan frequency operation according to the characteristics of the fan of the air conditioning unit max And a lower limit f min Requesting; setting the minimum protection limit T of the outlet temperature of the water chilling unit according to the characteristics of the water chilling unit dmin And the upper and lower limits of the fan frequency operation of the air conditioning unit and the lower limit of the water outlet temperature of the water cooling unit are input into a control module of an air water system without an electric adjusting water valve.
2. Collecting indoor air dry bulb temperature T of each room 1 、T 2 ……T n And relative humidity
Calculating the air moisture content d of each room according to the indoor air dry bulb temperature and the relative humidity Inner 1 、d Inner 2 ……d Inner n And input into the control module of the air-water system without electric regulation of the water valve.
3. In order to avoid that the humidity content of the indoor air is too high, and the phenomenon of indoor discomfort or condensation can occur, the upper limit value d of the humidity content of the air is set max And input into the control module of the air-water system without electric regulation of the water valve.
4. As shown in fig. 5, the control module of the air-water system without the electric water valve comprises a fan frequency adjusting module of the air conditioning unit, a water outlet temperature adjusting module of the water cooling unit and an air-water system coordination working module.
5. In the fan frequency adjusting module of the air conditioning unit, the return air temperature T of each air conditioning unit is acquired Hui 1 、T 2 coming back ……T Back to n According to the return air temperature of each air conditioning unit, the frequency f of the fan of each air conditioning unit is adjusted 1 、f 2 ……f n And (3) adjusting:
1) When the temperature of return air is T Go back to When the temperature of return air is higher than the target of return air temperature control and 0.5 ℃, the current frequency of the fan of the air conditioning unit is lower than the upper limit f max The fan frequency f of the air conditioning unit is required to be adjusted upwards, and the current fan frequency of the air conditioning unit is more than or equal to the upper limit f max The method comprises the steps of requiring, maintaining the fan frequency f of the current air conditioning unit to operate;
2) When the return air temperature is controlled to be equal to or less than 0.5 ℃ below zero and equal to the return air temperature T Go back to When the temperature is less than or equal to the return air temperature control target and 0.5 ℃, maintaining the current fan frequency f of the air conditioning unit to operate;
3) When the temperature of return air is T Chinese character hui When the temperature is lower than the return air temperature control target to 0.5 ℃, the current frequency of the fan of the air conditioning unit is higher than the lower limit f min The fan frequency f of the air conditioning unit is required to be adjusted downwards, and the current fan frequency of the air conditioning unit is less than or equal to the lower limit f min And (5) maintaining the fan frequency f of the air conditioning unit to operate.
6. In the outlet water temperature adjusting module of the water chilling unit, the fan frequency of the air conditioning unit is collected and is adjusted according to the running frequency f of each air conditioning unit fan 1 、f 2 ……f n Calculating the running air quantity Q of each air conditioning unit fan 1 、Q 2 ……Q n 。
7. Collecting air supply temperature T of each air conditioning unit Feeding 1 、T Feeding 2 ……T N is sent And the indoor air dry bulb temperature T of each room 1 、T 2 ……T n Setting an indoor temperature control target T Sign board Calculating all comprehensive indoor temperature deviation indexes T according to the air volume, the air supply temperature and the room temperature of each air conditioning unit Synthesis of ：
8. According to the comprehensive indoor temperature deviation index T Synthesis of And adjusting the temperature of the outlet water of the water chiller:
1) When the comprehensive indoor temperature deviation index T Synthesis of When the temperature is higher than the set value and 0.5 ℃, the temperature of the outlet water of the current water chilling unit is higher than the lower limit value T dmin The temperature of the outlet water of the water chilling unit is adjusted down, and the current temperature of the outlet water of the water chilling unit is less than or equal to a lower limit value T dmin Maintaining the current water outlet temperature of the water chilling unit to operate;
2) When the set value is less than or equal to-0.5 ℃, the comprehensive indoor temperature deviation index T Synthesis of The temperature of the water outlet of the current water chilling unit is maintained to be less than or equal to the set value plus 0.5 ℃;
3) When in a comprehensive roomTemperature deviation index T Synthesis of Monitoring the moisture content d of the indoor air of each room when the temperature is lower than the set value to 0.5 DEG C Inner 1 、d Inner 2 ……d Inner n When the moisture content of the indoor air is < the upper limit value d max And when the temperature of the water outlet of the water chiller is adjusted upwards. When the moisture content of the indoor air is more than or equal to the upper limit value d max And when the temperature of the outlet water of the water chilling unit is regulated, and the current temperature of the outlet water of the water chilling unit is kept to operate.
9. The wind-water system coordination work module monitors the temperature of the water outlet of the water chilling unit, adjusts the set values of the upper limit and the lower limit of the fan frequency of the air conditioning unit, and realizes the coordination work of the wind-water system:
1) When the water outlet temperature of the water chilling unit is higher than 12 ℃, the temperature lasts for 1 hour, and the upper limit set value of the fan frequency of the air conditioning unit is reduced by 5HZ;
2) When the water outlet temperature of the water chilling unit is more than or equal to 8 ℃ and less than or equal to 12 ℃, the set value of the upper limit and the lower limit of the fan frequency of the air conditioning unit is kept unchanged;
3) When the temperature of the outlet water of the water chilling unit is lower than 8 ℃, the temperature lasts for 1 hour, and the lower limit set value of the fan frequency of the air conditioning unit is adjusted up to 5HZ.
10. Sampling periods of the indoor dry bulb temperature, the relative humidity, the return air temperature of the air conditioning unit and the air supply temperature isothermal humidity sensors are 10 minutes. The execution cycle of the fan frequency of the air conditioning unit and the outlet water temperature of the water cooling unit is 30 minutes, so that frequent parameter adjustment is avoided, and the safe and stable operation of the air conditioning system is ensured.
In summary, the control method of the air-water system without the electric adjustment of the water valve can adjust the frequency of the fan through the return air temperature of the air conditioning unit, adjust the outlet water temperature of the water chilling unit by integrating the indoor temperature deviation index, and control the indoor temperature to meet the requirement; meanwhile, the upper and lower frequency limit set values of the air conditioner fan are adjusted by monitoring the water outlet temperature of the water chilling unit, so that the coordinated work of an air-water system is realized, and the air system and the water system are ensured to be in the optimal running state.
Next, an air-conditioning water system control device without an electric adjustment water valve according to an embodiment of the present application will be described with reference to the accompanying drawings.
Fig. 6 is a block schematic diagram of an air-conditioning water system control device without an electric water regulating valve according to an embodiment of the present application.
As shown in fig. 6, the air-conditioning water system control device 10 without the electric water regulating valve includes: an acquisition module 100, a first calculation module 200, a first adjustment module 300 and a second adjustment module 400.
The acquisition module 100 is used for acquiring the actual fan frequency and the actual indoor temperature of each air conditioning unit; the first calculation module 200 is configured to calculate a comprehensive indoor temperature deviation index according to the actual fan frequency and the indoor actual temperature of each air conditioning unit; the first adjusting module 300 is configured to determine an outlet water temperature adjusting value of the water chilling unit according to the comprehensive indoor temperature deviation index, and adjust an outlet water temperature of the water chilling unit based on the adjusting value; the second adjusting module 400 is configured to determine a fan frequency adjusting value of each air conditioning unit according to an actual outlet water temperature of the water chilling unit and an actual return air temperature of each air conditioning unit, and adjust a fan frequency of each air conditioning unit based on the fan frequency adjusting value of each air conditioning unit.
In the embodiment of the present application, the second adjusting module 400 is configured to: respectively adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value according to the actual outlet water temperature; when the actual return air temperature is in a first temperature interval, if the actual fan frequency of any air conditioning unit is smaller than a target upper limit value, the fan frequency of any air conditioning unit is adjusted according to a first preset frequency up-regulation strategy, and if the actual fan frequency of any air conditioning unit is larger than or equal to the target upper limit value, the fan frequency of any air conditioning unit is kept unchanged; when the actual return air temperature is in a second temperature interval, maintaining the fan frequency of each air conditioning unit unchanged; when the actual return air temperature is in a third temperature interval, if the actual fan frequency of any air conditioning unit is greater than the target lower limit value, the fan frequency of any air conditioning unit is adjusted downwards according to a first preset frequency adjustment strategy, and if the actual fan frequency is less than or equal to the target lower limit value, the fan frequency of any air conditioning unit is kept unchanged.
In this embodiment, the second adjusting module 400 is further configured to: when the actual outlet water temperature is in a fourth temperature interval and lasts for the first preset time length, a preset upper limit value is adjusted downwards according to a second preset frequency adjustment strategy to obtain a target upper limit value; when the outlet water temperature is in a fifth temperature interval, maintaining the preset upper limit value and the preset lower limit value of the fan frequency unchanged; and when the actual outlet water temperature is in the sixth temperature interval and lasts for the second preset time length, the preset lower limit value is adjusted upwards according to a second preset frequency increasing strategy to obtain a target lower limit value.
In the embodiment of the present application, the first adjusting module 300 is configured to: when the comprehensive indoor temperature deviation index is in a first index interval, if the actual outlet water temperature is greater than the preset temperature lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards according to a preset temperature down-adjusting strategy, and if the actual outlet water temperature is less than or equal to the preset temperature lower limit value, the outlet water temperature of the water chilling unit is kept unchanged; when the comprehensive indoor temperature deviation index is in the second index interval, the outlet water temperature of the water chilling unit is kept unchanged; and when the comprehensive indoor temperature deviation index is in a third index interval, if the indoor air moisture content is smaller than the preset moisture content upper limit value, the outlet water temperature of the water chilling unit is adjusted upwards according to a preset temperature increasing strategy, and if the indoor air moisture content is larger than or equal to the preset moisture content upper limit value, the outlet water temperature of the water chilling unit is maintained unchanged.
In the embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: and a second calculation module. The second calculation module is used for acquiring the indoor dry bulb temperature and the indoor relative humidity of each room, and calculating the indoor air moisture content of each room according to the dry bulb temperature and the indoor air moisture content of each room.
In an embodiment of the present application, the first computing module 200 is configured to: collecting the actual air supply temperature of each air conditioning unit; calculating to obtain the actual operation air volume of each air conditioning unit according to the actual fan frequency of each air conditioning unit; and calculating to obtain a comprehensive indoor temperature deviation index according to the actual air supply temperature of each air conditioning unit, the actual operation air volume of each air conditioning unit and the indoor dry bulb temperature of each room.
It should be noted that the explanation of the aforementioned embodiment of the method for controlling an air-conditioning air-water system without an electric water regulating valve is also applicable to the control device for an air-conditioning air-water system without an electric water regulating valve in this embodiment, and will not be described herein again.
According to the air-conditioning air-water system control device without the electric water regulating valve, the air-conditioning system is designed without the electric water regulating valve, and the electric water regulating valve is not arranged, so that a series of costs of equipment purchase, installation, debugging, maintenance and the like of the electric water regulating valve of the air-conditioning system are saved; the electric water regulating valve is not arranged, so that the pipe network resistance of a water system is reduced, the type selection of water pump equipment can be reduced, and the investment cost and the operation energy consumption of the water pump are effectively reduced; the problem that the flow of a water system cannot be adjusted due to the fault of the electric adjusting water valve and the condition of excessive cooling at the tail end of an air conditioner can be avoided, and energy waste is avoided.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device may include:
The processor 702 executes the program to implement the air-conditioning and water-conditioning system control method without the electric water-conditioning valve provided in the above embodiments.
Further, the electronic device further includes:
a communication interface 703 for communication between the memory 701 and the processor 702.
A memory 701 for storing computer programs operable on the processor 702.
The Memory 701 may include a high-speed RAM (Random Access Memory) Memory, and may also include a non-volatile Memory, such as at least one disk Memory.
If the memory 701, the processor 702 and the communication interface 703 are implemented independently, the communication interface 703, the memory 701 and the processor 702 may be connected to each other through a bus and perform communication with each other. The bus may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.
Optionally, in a specific implementation, if the memory 701, the processor 702, and the communication interface 703 are integrated on a chip, the memory 701, the processor 702, and the communication interface 703 may complete mutual communication through an internal interface.
The processor 702 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more Integrated circuits configured to implement embodiments of the present Application.
Embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above air-conditioning water system control method without an electric conditioning water valve.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 application. 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 N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of implementing the embodiments of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a programmable gate array, a field programmable gate array, or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
Claims (12)
1. A control method for an air-conditioning air-water system without an electric adjusting water valve is characterized by comprising the following steps:
collecting the actual fan frequency and the indoor actual temperature of each air conditioning unit, and calculating to obtain a comprehensive indoor temperature deviation index according to the actual fan frequency and the indoor actual temperature of each air conditioning unitWherein the comprehensive indoor temperature deviation index T Synthesis of The calculation formula of (c) is:
wherein Q i Indicating the fan operation air quantity, T, of the ith air conditioning unit i Represents the dry bulb temperature, T, of the indoor air of the ith room Send i Indicating the supply air temperature, T, of the ith air conditioning unit Sign board Representing the actual temperature in the room, Q i Calculating according to the actual fan frequency of the ith air conditioning unit;
determining an outlet water temperature adjusting value of a water chilling unit according to the comprehensive indoor temperature deviation index, and adjusting the outlet water temperature of the water chilling unit based on the adjusting value; the determining the outlet water temperature regulating value of the water chilling unit according to the comprehensive indoor temperature deviation index and regulating the outlet water temperature of the water chilling unit based on the regulating value comprises the following steps: when the comprehensive indoor temperature deviation index is in a first index interval, if the actual outlet water temperature is greater than a preset temperature lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards according to a preset temperature lower adjustment strategy, and if the actual outlet water temperature is less than or equal to the preset temperature lower limit value, the outlet water temperature of the water chilling unit is kept unchanged; when the comprehensive indoor temperature deviation index is in a second index interval, maintaining the outlet water temperature of the water chilling unit unchanged; when the comprehensive indoor temperature deviation index is in a third index interval, if the indoor air moisture content is smaller than a preset moisture content upper limit value, the water outlet temperature of the water chilling unit is adjusted upwards according to a preset temperature increasing strategy, and if the indoor air moisture content is larger than or equal to the preset moisture content upper limit value, the water outlet temperature of the water chilling unit is maintained unchanged; and
and determining the fan frequency regulating value of each air conditioning unit according to the actual water outlet temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and regulating the fan frequency of each air conditioning unit based on the fan frequency regulating value of each air conditioning unit.
2. The method of claim 1, wherein the determining the fan frequency adjustment value of each air conditioning unit according to the actual outlet water temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and adjusting the fan frequency of each air conditioning unit based on the fan frequency adjustment value of each air conditioning unit comprises:
adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature;
when the actual return air temperature is in a first temperature range, if the actual fan frequency of any air conditioning unit is smaller than the target upper limit value, the fan frequency of any air conditioning unit is adjusted according to a first preset frequency up-regulation strategy, and if the actual fan frequency of any air conditioning unit is larger than or equal to the target upper limit value, the fan frequency of any air conditioning unit is kept unchanged;
when the actual return air temperature is in a second temperature interval, maintaining the fan frequency of each air conditioning unit unchanged;
when the actual return air temperature is in a third temperature interval, if the actual fan frequency of any air conditioning unit is greater than the target lower limit value, the fan frequency of any air conditioning unit is adjusted downwards according to a first preset frequency adjustment strategy, and if the actual fan frequency is less than or equal to the target lower limit value, the fan frequency of any air conditioning unit is maintained unchanged.
3. The method according to claim 2, wherein the adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature comprises:
when the actual outlet water temperature is in a fourth temperature interval and lasts for a first preset time length, the preset upper limit value is adjusted downwards according to a second preset frequency adjustment strategy to obtain the target upper limit value;
when the outlet water temperature is in a fifth temperature interval, maintaining a preset upper limit value and a preset lower limit value of the fan frequency unchanged;
and when the actual outlet water temperature is in a sixth temperature interval and continues for a second preset time length, the preset lower limit value is adjusted upwards according to a second preset frequency up-regulation strategy, and the target lower limit value is obtained.
4. The method of claim 1, further comprising:
collecting the indoor dry bulb temperature and the relative humidity of each room;
and calculating the indoor air moisture content of each room according to the dry bulb temperature and the relative humidity.
5. The method as claimed in claim 4, wherein said calculating a comprehensive indoor temperature deviation index according to the actual fan frequency of each air conditioning unit and the indoor actual temperature comprises:
collecting the actual air supply temperature of each air conditioning unit;
calculating to obtain the actual operation air volume of each air conditioning unit according to the actual fan frequency of each air conditioning unit;
and calculating to obtain a comprehensive indoor temperature deviation index according to the actual air supply temperature of each air conditioning unit, the actual operation air volume of each air conditioning unit and the indoor dry bulb temperature of each room.
6. The utility model provides an air conditioner air-water system controlling means of no electronic water regulating valve which characterized in that includes:
the acquisition module is used for acquiring the actual fan frequency and the indoor actual temperature of each air conditioning unit;
a first calculation module, configured to calculate a comprehensive indoor temperature deviation index according to the actual fan frequency of each air conditioning unit and the indoor actual temperature, where the comprehensive indoor temperature deviation index T Synthesis of The calculation formula of (2) is as follows:
wherein Q is i Indicating the fan operation air quantity, T, of the ith air conditioning unit i Represents the dry bulb temperature, T, of the indoor air of the ith room Send i Indicating the supply air temperature, T, of the ith air conditioning unit Sign board Representing the actual temperature in the room, Q i Calculating according to the actual fan frequency of the ith air conditioning unit;
the first adjusting module is used for determining an outlet water temperature adjusting value of the water chilling unit according to the comprehensive indoor temperature deviation index and adjusting the outlet water temperature of the water chilling unit based on the adjusting value; the first adjusting module is used for: when the comprehensive indoor temperature deviation index is in a first index interval, if the actual outlet water temperature is greater than a preset temperature lower limit value, the outlet water temperature of the water chilling unit is adjusted downwards according to a preset temperature lower adjustment strategy, and if the actual outlet water temperature is less than or equal to the preset temperature lower limit value, the outlet water temperature of the water chilling unit is maintained unchanged; when the comprehensive indoor temperature deviation index is in a second index interval, keeping the outlet water temperature of the water chilling unit unchanged; when the comprehensive indoor temperature deviation index is in a third index interval, if the indoor air moisture content is smaller than a preset moisture content upper limit value, the water outlet temperature of the water chilling unit is adjusted upwards according to a preset temperature increasing strategy, and if the indoor air moisture content is larger than or equal to the preset moisture content upper limit value, the water outlet temperature of the water chilling unit is kept unchanged; and
and the second adjusting module is used for determining the fan frequency adjusting value of each air conditioning unit according to the actual water outlet temperature of the water chilling unit and the actual return air temperature of each air conditioning unit, and adjusting the fan frequency of each air conditioning unit based on the fan frequency adjusting value of each air conditioning unit.
7. The apparatus of claim 6, wherein the second adjustment module is configured to:
adjusting the preset upper limit value and the preset lower limit value of the fan frequency of each air conditioning unit to a target upper limit value and a target lower limit value respectively according to the actual outlet water temperature;
when the actual return air temperature is in a first temperature range, if the actual fan frequency of any air conditioning unit is smaller than the target upper limit value, the fan frequency of any air conditioning unit is adjusted according to a first preset frequency up-regulation strategy, and if the actual fan frequency of any air conditioning unit is larger than or equal to the target upper limit value, the fan frequency of any air conditioning unit is kept unchanged;
when the actual return air temperature is in a second temperature interval, maintaining the fan frequency of each air conditioning unit unchanged;
when the actual return air temperature is in a third temperature interval, if the actual fan frequency of any air conditioning unit is greater than the target lower limit value, the fan frequency of any air conditioning unit is adjusted downwards according to a first preset frequency adjustment strategy, and if the actual fan frequency is less than or equal to the target lower limit value, the fan frequency of any air conditioning unit is maintained unchanged.
8. The apparatus of claim 7, wherein the second adjustment module is further configured to:
when the actual outlet water temperature is in a fourth temperature interval and lasts for a first preset time length, the preset upper limit value is adjusted downwards according to a second preset frequency adjustment strategy to obtain the target upper limit value;
when the outlet water temperature is in a fifth temperature range, maintaining a preset upper limit value and a preset lower limit value of the fan frequency unchanged;
and when the actual outlet water temperature is in a sixth temperature interval and lasts for a second preset time length, the preset lower limit value is adjusted upwards according to a second preset frequency increasing strategy to obtain the target lower limit value.
9. The apparatus of claim 6, further comprising:
and the second calculation module is used for acquiring the indoor dry bulb temperature and the indoor relative humidity of each room, and calculating the indoor air moisture content of each room according to the dry bulb temperature and the indoor relative humidity.
10. The apparatus of claim 9, wherein the first computing module is configured to:
collecting the actual air supply temperature of each air conditioning unit;
calculating to obtain the actual operation air volume of each air conditioning unit according to the actual fan frequency of each air conditioning unit;
and calculating to obtain a comprehensive indoor temperature deviation index according to the actual air supply temperature of each air conditioning unit, the actual operation air volume of each air conditioning unit and the indoor dry bulb temperature of each room.
11. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the air-conditioning/water-conditioning system control method without an electrically-adjusted water valve as set forth in any one of claims 1 to 5.
12. A computer-readable storage medium on which a computer program is stored, the program being executed by a processor for implementing the air-conditioning water supply system control method without an electrically-adjusted water valve according to any one of claims 1 to 5.
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| CN112484254A (en) * | 2020-11-24 | 2021-03-12 | 珠海格力电器股份有限公司 | Control method, device, controller and system of combined air conditioning unit |
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