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CN114877443A - Control method of air conditioner, air conditioner and nonvolatile storage medium - Google Patents

Control method of air conditioner, air conditioner and nonvolatile storage medium Download PDF

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Publication number
CN114877443A
CN114877443A CN202210571429.0A CN202210571429A CN114877443A CN 114877443 A CN114877443 A CN 114877443A CN 202210571429 A CN202210571429 A CN 202210571429A CN 114877443 A CN114877443 A CN 114877443A
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air
air conditioner
humidity
temperature
supply
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曹国荣
吴宇明
李少华
童俊达
沈檑瑶
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Jushi Group Co Ltd
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Jushi Group Co Ltd
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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
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • 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
    • F24F2110/20—Humidity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • 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)
  • Air Conditioning Control Device (AREA)

Abstract

本发明提供了一种空调器的控制方法、空调器和非易失性存储介质，控制方法包括在空调器的控制器内存储多个焓值阈值、多个送风温度系数取值范围、多个送风湿度系数取值范围；多个送风温度系数取值范围和多个送风湿度系数取值范围均与多个焓值阈值一一对应地设置；检测空调器引入室内的室外新风的新风焓值Hx；判断新风焓值Hx所属焓值阈值；确定所对应地送风温度系数取值范围以及送风湿度系数取值范围；控制送风温度设定系统根据所确定的送风温度系数取值范围对空调器设定的送风温度进行补偿；控制送风湿度设定系统根据所确定的送风湿度系数取值范围对空调器设定的送风湿度进行补偿。本发明解决了现有技术中的对车间温湿度控制的自动化程度低的问题。

Figure 202210571429

The invention provides a control method of an air conditioner, an air conditioner and a non-volatile storage medium. The control method includes storing a plurality of enthalpy thresholds, a plurality of air supply temperature coefficient value ranges, The value ranges of the supply air humidity coefficients; multiple supply air temperature coefficient value ranges and multiple supply air humidity coefficient value ranges are set in a one-to-one correspondence with multiple enthalpy thresholds; The fresh air enthalpy value Hx; determine the enthalpy threshold value of the fresh air enthalpy value Hx; determine the corresponding value range of the supply air temperature coefficient and the value range of the supply air humidity coefficient; control the supply air temperature setting system according to the determined supply air temperature coefficient The value range compensates the air supply temperature set by the air conditioner; the control air supply humidity setting system compensates the air supply humidity set by the air conditioner according to the determined value range of the air supply humidity coefficient. The invention solves the problem of low automation degree of workshop temperature and humidity control in the prior art.

Figure 202210571429

Description

Control method of air conditioner, air conditioner and nonvolatile storage medium
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method of an air conditioner, the air conditioner and a nonvolatile storage medium.
Background
The twisting workshop in the glass fiber spun yarn production realizes the annual constant temperature and humidity control of the air conditioning temperature and humidity, and the building structure of the twisting workshop is a large space, and the temperature and humidity control precision requirement is higher, so that the air conditioning ventilation frequency is generally higher to ensure.
However, frequent air exchange of the air conditioner causes energy consumption increase of the air conditioner, and average temperature and humidity control of a production workshop in a large space has certain hysteresis, which directly causes temperature and humidity fluctuation of the workshop to be increased, and causes unstable product quality.
In addition, the influence of the outside climate change on the workshop is generally difficult to control by the workshop average temperature and humidity control technology, the workshop average temperature and humidity set value needs to be continuously corrected and adjusted manually, and different air conditioner control modes need to be frequently switched manually in a transition season, so that the industrial automation degree is low; the temperature and humidity of the workshop are detected to exceed the standard by a workshop temperature and humidity sensor, the temperature and humidity of the workshop are changed by an air conditioner actuator, the air is supplied to the workshop, and the temperature and humidity of the workshop are changed, so that the time of a series of processes is too long, the feedback is not rapid, the temperature and humidity period is long, and the control on the temperature and humidity of the air conditioner has serious hysteresis, which is an important factor for unstable temperature and humidity control; the water content of the product exceeds the standard due to the error adjustment of the temperature and the humidity of the workshop is increased, and the risk of the product quality is reduced.
Disclosure of Invention
The invention mainly aims to provide a control method of an air conditioner, the air conditioner and a nonvolatile storage medium, so as to solve the problem of low automation degree of workshop temperature and humidity control in the prior art.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a control method of an air conditioner, the control method including: storing a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges in a controller of the air conditioner; the air supply temperature coefficient value ranges and the air supply humidity coefficient value ranges are respectively set in one-to-one correspondence with the enthalpy value thresholds; detecting a fresh air enthalpy value Hx of outdoor fresh air introduced into an air conditioner; judging an enthalpy threshold value of the fresh air enthalpy value Hx; determining a corresponding air supply temperature coefficient value range and an air supply humidity coefficient value range according to an enthalpy value threshold value to which the fresh air enthalpy value Hx belongs; controlling an air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined air supply temperature coefficient value range; and controlling an air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined air supply humidity coefficient value range.
Further, the method for controlling the air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined value range of the air supply temperature coefficient comprises the following steps: and controlling the air conditioner to discharge air after reducing the value range of the determined air supply temperature coefficient by taking the set air supply temperature as a reference.
Further, the method for controlling the air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined value range of the air supply humidity coefficient comprises the following steps: and controlling the air conditioner to output air after reducing the value range of the determined air supply humidity coefficient by taking the set air supply humidity as a reference.
Furthermore, the enthalpy threshold value is 25 kJ/kg-60 kJ/kg; the value range of the air supply temperature coefficient is-1.25-2.5 ℃; the value range of the air supply humidity coefficient is 0.5 g/kg-1.2 g/kg.
Further, the control method further comprises: when fresh air is outsideEnthalpy value H x In the range of H x When the temperature is less than 25kJ/kg, determining the temperature coefficient of the air supply to be-1.25 ℃, and determining the humidity coefficient of the air supply to be 1.2 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner to-1.25 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 1.2 g/kg.
Further, the control method further comprises: when the enthalpy value H of the outdoor fresh air x In the range of 25 kJ/kg-H x When the temperature is less than or equal to 40kJ/kg, determining the temperature coefficient of the air supply to be 0.5 ℃, and determining the humidity coefficient of the air supply to be 0.75 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner by 0.5 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 0.75 g/kg.
Further, the control method further comprises: when the enthalpy value H of the outdoor fresh air x In the range of 40kJ/kg < H x When the temperature is less than or equal to 60kJ/kg, determining the temperature coefficient of the air supply to be 1.5 ℃, and determining the humidity coefficient of the air supply to be 1.0 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner by 1.5 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 1.0 g/kg.
Further, the control method further comprises: when the enthalpy value H of the outdoor fresh air x In the range of H x When the temperature is more than 60kJ/kg, determining the temperature coefficient of the air supply to be 2.5 ℃ and determining the humidity coefficient of the air supply to be 1.2 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner by 2.5 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 1.2 g/kg.
Further, when the temperature of the outdoor fresh air is lower than the indoor temperature, the humidity of the outdoor fresh air is lower than the indoor humidity, and the enthalpy value of the outdoor fresh air is lower than the enthalpy value of the indoor air, the control method further comprises the following steps: opening a surface cooling valve of the air conditioner; thereafter, the frequency of the freeze pump of the air conditioner is adjusted.
Further, according to a second aspect of the present invention, there is provided an air conditioner adapted to the control method of the air conditioner described above, the air conditioner including: the air supply channel is internally provided with a first temperature and humidity sensor; and the humidifying channel is communicated with the air supply channel, and a second temperature and humidity sensor is arranged in the humidifying channel.
Further, the air conditioner further includes: the execution module is connected with a refrigerant control valve of the air conditioner; and the control module is connected with the execution module, the first temperature and humidity sensor and the second temperature and humidity sensor.
According to a third aspect of the present invention, there is provided a nonvolatile storage medium including a stored program, wherein the program executes the control method of the air conditioner described above.
By applying the technical scheme of the invention, the control method of the air conditioner stores a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges in a controller of the air conditioner in advance, wherein the plurality of air supply temperature coefficient value ranges and the plurality of air supply humidity coefficient value ranges are respectively set in one-to-one correspondence with the plurality of enthalpy value thresholds; specifically, because the outdoor environment changes continuously, the enthalpy value of outdoor fresh air also changes dynamically, a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges are set, so that different air supply temperature coefficient value ranges and air supply humidity coefficient value ranges are determined under different enthalpy value thresholds, and the air conditioner compensates the air supply temperature and the air supply humidity set by the air conditioner respectively according to the determined fresh air enthalpy value, the air supply temperature coefficient value range and the air supply humidity coefficient value range, so that the preset temperature and humidity are kept indoors; specifically, the method comprises the following steps: fresh air enthalpy value H for detecting outdoor fresh air introduced into air conditioner x (ii) a Judging fresh air enthalpy value H x The enthalpy value threshold value is assigned; according to fresh air enthalpy value H x The corresponding air supply temperature coefficient value range and air supply humidity coefficient value range are determined according to the enthalpy value threshold; controlling an air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined air supply temperature coefficient value range; and controlling an air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined air supply humidity coefficient value range. Thus realizing the automation of the indoor temperature and humidityThe air conditioner control method has the advantages that the air conditioner is controlled in a chemical mode, operators do not need to manually adjust the air outlet temperature and humidity of the air conditioner, the intelligentization of the air conditioner control is improved, the air conditioner control technology is further improved, and meanwhile the air conditioner circulating air quantity is reduced, so that the production energy consumption and cost are reduced, the purposes of energy conservation, emission reduction and the like are achieved, and the problems of low intelligentization degree of the air conditioner control, large workshop temperature and humidity control fluctuation, high air conditioner energy consumption and the like are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic configuration of an air conditioner according to the present invention.
Wherein the figures include the following reference numerals:
1. an air supply channel; 2. a workshop; 3. and (5) producing the product.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The invention provides a control method of an air conditioner, which comprises the following steps: storing a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges in a controller of the air conditioner; the air supply temperature coefficient value ranges and the air supply humidity coefficient value ranges are respectively set in one-to-one correspondence with the enthalpy value thresholds; detecting emptyFresh air enthalpy value H of outdoor fresh air introduced into indoor by adjuster x (ii) a Judging fresh air enthalpy value H x The enthalpy value threshold value is assigned; according to fresh air enthalpy value H x The corresponding air supply temperature coefficient value range and air supply humidity coefficient value range are determined according to the enthalpy value threshold; controlling an air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined air supply temperature coefficient value range; and controlling an air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined air supply humidity coefficient value range.
According to the control method of the air conditioner, a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges are stored in a controller of the air conditioner in advance, wherein the plurality of air supply temperature coefficient value ranges and the plurality of air supply humidity coefficient value ranges are respectively set in one-to-one correspondence with the plurality of enthalpy value thresholds; specifically, because the outdoor environment changes continuously, the enthalpy value of outdoor fresh air also changes dynamically, a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges are set, so that different air supply temperature coefficient value ranges and air supply humidity coefficient value ranges are determined under different enthalpy value thresholds, and the air conditioner compensates the air supply temperature and the air supply humidity set by the air conditioner respectively according to the determined fresh air enthalpy value, the air supply temperature coefficient value range and the air supply humidity coefficient value range, so that the indoor preset temperature and humidity are kept; specifically, the method comprises the following steps: fresh air enthalpy value H for detecting outdoor fresh air introduced into air conditioner x (ii) a Judging fresh air enthalpy value H x The enthalpy value threshold value is assigned; according to fresh air enthalpy value H x The corresponding air supply temperature coefficient value range and air supply humidity coefficient value range are determined according to the enthalpy value threshold; controlling an air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined air supply temperature coefficient value range; and controlling an air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined air supply humidity coefficient value range. Thus realizing the indoor alignmentThe air conditioner has the advantages that the temperature and the humidity are automatically controlled, operators do not need to manually adjust the air outlet temperature and the humidity of the air conditioner, the intelligence of the air conditioner control is improved, the air conditioner control technology is further improved, and the air conditioner circulating air quantity is reduced, so that the production energy consumption and the cost are reduced, the aims of energy conservation, emission reduction and the like are fulfilled, and the problems of low intelligence degree of the air conditioner control, large fluctuation of temperature and humidity control of a workshop, high air conditioner energy consumption and the like are solved.
In the present application, taking a glass fiber spun yarn twisting workshop as an example, as shown in fig. 1, an air supply channel 1 of an air conditioner is positioned at the top of a workshop 2, and performs heat absorption and moisture absorption treatment on products in the workshop 2, wherein the temperature in the workshop needs to be constant at T 2 Humidity is constant at D 2 But is influenced by outdoor environmental factors if the air conditioner has a temperature value T 2 Humidity value D 2 Air-out, when the outdoor temperature is increased, the air supply temperature T of the air conditioner 2 And supply air humidity D 2 Cannot meet the requirement of keeping the temperature in the workshop at T 2 Humidity is maintained at D 2 At this time, the set air supply temperature and air supply humidity of the air conditioner need to be compensated by using the set air supply temperature coefficient value range and air supply humidity coefficient value range, so that the air supply temperature and air supply humidity of the air conditioner dynamically change according to outdoor environmental factors, and the temperature and humidity in the workshop are constant.
The control mode of the air conditioner adopted by the invention absorbs heat and moisture of spun yarn products in a tall workshop, reduces the fluctuation of the temperature and the humidity of the tall workshop for producing the spun yarn, and achieves the aim of really ensuring the production process quality. According to different degrees of influence of external environment temperature and humidity on heat transfer and humidity transfer of the spun yarn production workshop in different seasons, the correction coefficient of the air supply temperature set value and the correction coefficient of the air supply moisture content set value are explored through actual test simulation to control the air temperature and humidity of the air conditioner, and the air temperature and humidity quality in the spun yarn production workshop is automatically controlled through different air supply temperature and humidity set values. The actual operation and tracking test in the last year show that the temperature and humidity uniformity of a high glass fiber spun yarn workshop is good and the control is accurate.
Specifically, the method for controlling the air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined air supply temperature coefficient value range comprises the following steps: and controlling the air conditioner to discharge air after reducing the value range of the determined air supply temperature coefficient by taking the set air supply temperature as a reference. The method for controlling the air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined value range of the air supply humidity coefficient comprises the following steps: and controlling the air conditioner to output air after reducing the value range of the determined air supply humidity coefficient by taking the set air supply humidity as a reference.
In the specific application process, the enthalpy threshold is 25 kJ/kg-60 kJ/kg; the value range of the air supply temperature coefficient is-1.25-2.5 ℃; the value range of the air supply humidity coefficient is 0.5 g/kg-1.2 g/kg.
In specific implementation, the control method further includes: when the enthalpy value H of the outdoor fresh air x In the range of H x When the temperature is less than 25kJ/kg, determining the temperature coefficient of the air supply to be-1.25 ℃, and determining the humidity coefficient of the air supply to be 1.2 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner to-1.25 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 1.2 g/kg. Detecting enthalpy value H of outdoor fresh air x In the range of H x When the temperature is less than 25kJ/kg, the system determines that the air supply temperature coefficient is-1.25 ℃, determines that the air supply humidity coefficient is 1.2g/kg, then subtracts the air conditioner set temperature from-1.25 ℃, and subtracts the air conditioner set humidity from 1.2g/kg to obtain the actual air supply temperature and air supply humidity of the air conditioner so as to ensure that the temperature and the humidity in the workshop are constant.
The control method further comprises the following steps: when the enthalpy value H of the outdoor fresh air x In the range of 25 kJ/kg-H x When the temperature is less than or equal to 40kJ/kg, determining the temperature coefficient of the air supply to be 0.5 ℃, and determining the humidity coefficient of the air supply to be 0.75 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner by 0.5 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 0.75 g/kg. Detecting the enthalpy value H of the outdoor fresh air x In the range of 25 kJ/kg-H x When the temperature of the air supply is less than or equal to 40kJ/kg, the system determines that the temperature coefficient of the air supply is 0.5 ℃ and the humidity coefficient of the air supply is 0.75g/kg, and then the system sets the air conditionerAnd subtracting 0.5 ℃ from the fixed temperature, and subtracting 0.75g/kg from the set humidity of the air conditioner to obtain the actual air supply temperature and the actual air supply humidity of the air conditioner so as to ensure that the temperature and the humidity in the workshop are constant.
The control method further comprises the following steps: when the enthalpy value H of the outdoor fresh air x In the range of 40kJ/kg < H x When the temperature is less than or equal to 60kJ/kg, determining the temperature coefficient of the air supply to be 1.5 ℃, and determining the humidity coefficient of the air supply to be 1.0 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner by 1.5 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 1.0 g/kg. Detecting the enthalpy value H of the outdoor fresh air x In the range of 40kJ/kg < H x When the temperature of the air supply is less than or equal to 60kJ/kg, the system determines that the temperature coefficient of the air supply is 1.5 ℃ and the humidity coefficient of the air supply is 1.0g/kg, then the system subtracts 1.5 ℃ from the set temperature of the air conditioner and subtracts 1.0g/kg from the set humidity of the air conditioner to obtain the actual air supply temperature and air supply humidity of the air conditioner so as to ensure that the temperature and the humidity in a workshop are constant.
The control method further comprises the following steps: when the enthalpy value H of the outdoor fresh air x In the range of H x When the temperature is more than 60kJ/kg, determining the temperature coefficient of the air supply to be 2.5 ℃ and determining the humidity coefficient of the air supply to be 1.2 g/kg; controlling a temperature setting system of the air conditioner to reduce the set temperature of the air conditioner by 2.5 ℃; the humidity setting system for controlling the air conditioner reduces the humidity set by the air conditioner by 1.2 g/kg. Detecting the enthalpy value H of the outdoor fresh air x In the range of H x When the temperature of the air supply is more than 60kJ/kg, the system determines that the temperature coefficient of the air supply is 2.5 ℃ and the humidity coefficient of the air supply is 1.2g/kg, then the system subtracts 2.5 ℃ from the set temperature of the air conditioner and subtracts 1.2g/kg from the set humidity of the air conditioner to obtain the actual air supply temperature and air supply humidity of the air conditioner so as to ensure that the temperature and the humidity in a workshop are constant.
In the actual production process, the temperature of the twisting workshop is controlled to be generally 28 ℃ and the humidity is controlled to be 42 percent, and the influence of different control methods on the temperature and the humidity of the workshop is shown in the following table;
table 1: temperature and humidity stability tabulation of plants of different control methods
Figure BDA0003660405590000051
Figure BDA0003660405590000061
The numbers 1 to 4 respectively show the stability of the temperature and the humidity of the workshop in different seasons in the control method, the influence of the conventional control method on the temperature and the humidity of the workshop is +/-5 ℃, the relative humidity is +/-10%, and the fluctuation ranges of the temperature and the humidity in the workshop are obviously smaller than those of the conventional control method in the numbers 1 to 4.
In this application, when the air supply temperature and the air supply humidity of control air conditioner, when outdoor new trend temperature is less than indoor temperature, outdoor new trend humidity is less than indoor humidity simultaneously, and when outdoor new trend enthalpy value is less than indoor air enthalpy value simultaneously, control method still includes: opening a surface cooling valve or a heating valve of the air conditioner; thereafter, the frequency of the cold/hot water pump of the air conditioner is adjusted. When the air conditioner is closed, the frequency of the cold/hot water pump is firstly reduced to the lowest frequency, and then the opening degree of the surface cooling valve or the heating valve is reduced, so that the aim is to achieve the temperature and humidity control stability of the air conditioner in a large workshop, better meet the requirements of the production process and enable the air conditioner to run in an energy-saving mode.
Table 2: list of unit energy consumption for different control methods
Figure BDA0003660405590000062
The numbers 1 to 4 are the air conditioner control method, the unit energy consumption of a workshop by the conventional control method is 16 kwh/ton, the unit energy consumption of the workshop by the air conditioner control method of the numbers 1 to 4 is 10 kwh/ton, and the air conditioner control method of the application greatly reduces the air conditioner energy consumption of the workshop and effectively reduces the production and operation cost by controlling a surface cooling/heating valve and a cold/hot water pump according to a certain sequence.
In order to stabilize the operation of the air conditioner and avoid the problem of large temperature and humidity fluctuation caused by frequent switching of operation modes, the method for controlling the air conditioner to operate in a fresh air mode comprises the following steps: after the fresh air valve of the air conditioner is opened, the fresh air fan of the air conditioner is opened. The control method further comprises the following steps: and when the frequency of a fresh air fan of the air conditioner is more than 30Hz, an exhaust valve of the air conditioner is opened. When the system is switched to the fresh air mode, the fresh air mode is controlled to keep running for at least 48 hours, and the problem that the system is frequently switched due to large change of the moisture content of outdoor fresh air in a transition season is solved.
Table 3: temperature and humidity stability list of different control methods
Figure BDA0003660405590000071
The numbers 1 and 2 are control methods of the application, when the temperature and the humidity of a twisting workshop are controlled, a conventional air conditioner control method switches a fresh air mode and a return air mode, the fluctuation values of the temperature of the workshop are +/-7 ℃ and +/-5 ℃, the fluctuation values of the humidity are +/-15% and +/-10%, in the air conditioner control methods of the numbers 1 and 2, the fluctuation values of the temperature and the humidity of the workshop are +/-2 ℃ and +/-3%, the control method delays for 48 hours by controlling the switching of the fresh air and the return air, the temperature and humidity stability of an air conditioner is effectively improved, and the control method of the number 1-2 in the table 3 has the minimum fluctuation on the production of the workshop.
The present invention also provides an air conditioner, which is suitable for the control method of the air conditioner of the above embodiment, and the air conditioner includes: the air supply channel 1 is internally provided with a first temperature and humidity sensor; and the humidifying channel is communicated with the air supply channel, and a second temperature and humidity sensor is arranged in the humidifying channel. The humiture of the air current in the air supply channel 1 is detected through the first temperature and humidity sensor, the humiture of the air current in the humidification channel is detected through the second temperature and humidity sensor, and the air supply channel 1 and the humidification channel are matched with each other, so that the humiture of the air current at the air outlet of the air conditioner can meet the requirements required by a workshop.
In the implementation process, the air conditioner further comprises: the execution module is connected with a refrigerant control valve of the air conditioner; and the control module is connected with the execution module, the first temperature and humidity sensor and the second temperature and humidity sensor. The control module transmits a signal to the execution module after determining the air supply temperature coefficient and the air supply humidity coefficient, and the execution module adjusts the opening of the refrigerant control valve according to the signal of the control module so as to adjust the actual air outlet temperature of the air conditioner.
The present invention also provides a nonvolatile storage medium including a stored program, wherein the program executes the control method of the air conditioner of the above embodiment.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
(1) according to the control method of the air conditioner, a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges are stored in a controller of the air conditioner in advance, wherein the plurality of air supply temperature coefficient value ranges and the plurality of air supply humidity coefficient value ranges are respectively set in one-to-one correspondence with the plurality of enthalpy value thresholds; specifically, because the outdoor environment changes continuously, the enthalpy value of outdoor fresh air also changes dynamically, a plurality of enthalpy value thresholds, a plurality of air supply temperature coefficient value ranges and a plurality of air supply humidity coefficient value ranges are set, so that different air supply temperature coefficient value ranges and air supply humidity coefficient value ranges are determined under different enthalpy value thresholds, and the air conditioner compensates the air supply temperature and the air supply humidity set by the air conditioner respectively according to the determined fresh air enthalpy value, the air supply temperature coefficient value range and the air supply humidity coefficient value range, so that the indoor preset temperature and humidity are kept; specifically, the method comprises the following steps: fresh air enthalpy value H for detecting outdoor fresh air introduced into air conditioner x (ii) a Judging fresh air enthalpy value H x The enthalpy value threshold value is assigned; according to fresh air enthalpy value H x The enthalpy value threshold value determines the corresponding air supply temperature coefficient value range and air supply humidity coefficient value range; controlling an air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined air supply temperature coefficient value range; and controlling an air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined air supply humidity coefficient value range. Thus realizing the indoor alignmentThe air conditioner has the advantages that the temperature and the humidity are automatically controlled, operators do not need to manually adjust the air outlet temperature and the humidity of the air conditioner, the intelligence of the air conditioner is improved, the air conditioner control technology is further improved, and the circulating air volume of the air conditioner is reduced, so that the production energy consumption and the cost are reduced, and the aims of energy conservation, emission reduction and the like are fulfilled.
(2) According to the control method of the air conditioner, the air supply temperature and humidity of the air conditioner are controlled, the different influence degrees of the air supply temperature and humidity on heat transfer and humidity transfer of a tall and big workshop are researched, the value range of the air supply temperature setting coefficient and the air supply humidity (moisture content) setting coefficient is explored, various defects of controlling the temperature and the humidity of the tall and big workshop according to the average temperature and the humidity of the workshop are effectively overcome, and the temperature and humidity control stability is improved.
(3) The invention researches and explores control items closely related to the temperature and the humidity of the air supply while controlling the temperature and the humidity of the air supply, namely reasonable control of an air conditioner surface cooling valve and a refrigeration pump, and the invention researches and explores an effective control method which comprises the following steps: the control is performed in sequence, and is an indispensable condition for stable control of air supply temperature and humidity and energy-saving operation in high and large workshops.
(4) The invention provides energy-saving control for air conditioner operation in different seasons, in particular to the control method when outdoor fresh air temperature and humidity meet the requirements of air supply temperature and humidity of a workshop air conditioner. A fresh air fan, a fresh air valve and an exhaust valve are arranged in a high and large twisting workshop and are controlled hierarchically. When the fresh air is switched, the system is delayed, the frequent switching of the system is avoided, and the purposes of energy conservation and stable operation during process production are met.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1.一种空调器的控制方法，其特征在于，所述控制方法包括：1. A control method for an air conditioner, wherein the control method comprises: 在所述空调器的控制器内存储多个焓值阈值、多个送风温度系数取值范围、多个送风湿度系数取值范围；其中，多个送风温度系数取值范围和多个送风湿度系数取值范围均与多个焓值阈值一一对应地设置；Store multiple enthalpy thresholds, multiple supply air temperature coefficient value ranges, and multiple supply air humidity coefficient value ranges in the controller of the air conditioner; wherein multiple supply air temperature coefficient value ranges and multiple supply air temperature coefficient value ranges The value range of the supply air humidity coefficient is set in a one-to-one correspondence with multiple enthalpy thresholds; 检测所述空调器引入室内的室外新风的新风焓值Hx；Detecting the fresh air enthalpy value H x of the outdoor fresh air introduced into the room by the air conditioner; 判断所述新风焓值Hx所属的焓值阈值；Determine the enthalpy threshold to which the fresh air enthalpy H x belongs; 根据所述新风焓值Hx所属的焓值阈值，确定所对应地送风温度系数取值范围以及送风湿度系数取值范围；According to the enthalpy threshold value to which the fresh air enthalpy value H x belongs, determine the corresponding value range of the supply air temperature coefficient and the value range of the supply air humidity coefficient; 控制所述空调器的送风温度设定系统根据所确定的送风温度系数取值范围对所述空调器设定的送风温度进行补偿；Controlling the air supply temperature setting system of the air conditioner to compensate the air supply temperature set by the air conditioner according to the determined value range of the air supply temperature coefficient; 控制所述空调器的送风湿度设定系统根据所确定的送风湿度系数取值范围对所述空调器设定的送风湿度进行补偿。Control the air supply humidity setting system of the air conditioner to compensate the air supply humidity set by the air conditioner according to the determined value range of the air supply humidity coefficient. 2.根据权利要求1所述的空调器的控制方法，其特征在于，控制所述空调器的送风温度设定系统根据所确定的送风温度系数取值范围对所述空调器设定的送风温度进行补偿的方法包括：2 . The control method of an air conditioner according to claim 1 , wherein the air supply temperature setting system of the air conditioner is controlled to set the air conditioner according to the determined value range of the air supply temperature coefficient. 3 . Methods for compensating supply air temperature include: 控制所述空调器以设定的送风温度为基准，降低所确定的送风温度系数取值范围后出风。The air conditioner is controlled to take the set air supply temperature as a reference, and the air is discharged after reducing the determined value range of the air supply temperature coefficient. 3.根据权利要求1或2所述的空调器的控制方法，其特征在于，控制所述空调器的送风湿度设定系统根据所确定的送风湿度系数取值范围对所述空调器设定的送风湿度进行补偿的方法包括：3. The control method of an air conditioner according to claim 1 or 2, wherein the air supply humidity setting system for controlling the air conditioner sets the air conditioner setting according to the determined value range of the air supply humidity coefficient. The methods of compensating for the specified supply air humidity include: 控制所述空调器以设定的送风湿度为基准，降低所确定的送风湿度系数取值范围后出风。The air conditioner is controlled to take the set air supply humidity as a reference, and the air is discharged after reducing the determined value range of the air supply humidity coefficient. 4.根据权利要求1所述的空调器的控制方法，其特征在于，4. The control method of an air conditioner according to claim 1, wherein, 所述焓值阈值为25kJ/kg～60kJ/kg；The enthalpy threshold is 25kJ/kg～60kJ/kg; 所述送风温度系数取值范围为-1.25℃～2.5℃；The temperature coefficient of the supply air ranges from -1.25°C to 2.5°C; 所述送风湿度系数取值范围为0.5g/kg～1.2g/kg。The value range of the air supply humidity coefficient is 0.5g/kg～1.2g/kg. 5.根据权利要求4所述的空调器的控制方法，其特征在于，所述控制方法还包括：5. The control method of an air conditioner according to claim 4, wherein the control method further comprises: 当室外新风的焓值Hx的范围为Hx＜25kJ/kg时，确定所述送风温度系数为-1.25℃，确定所述送风湿度系数为1.2g/kg；When the range of the enthalpy value H x of the outdoor fresh air is H x <25kJ/kg, the temperature coefficient of the supply air is determined to be -1.25°C, and the humidity coefficient of the supply air is determined to be 1.2g/kg; 控制所述空调器的温度设定系统将空调器所设定的温度降低-1.25℃；Controlling the temperature setting system of the air conditioner to lower the temperature set by the air conditioner by -1.25°C; 控制所述空调器的湿度设定系统将空调器所设定的湿度降低1.2g/kg。The humidity setting system of the air conditioner was controlled to lower the humidity set by the air conditioner by 1.2 g/kg. 6.根据权利要求4所述的空调器的控制方法，其特征在于，所述控制方法还包括：6. The control method of an air conditioner according to claim 4, wherein the control method further comprises: 当室外新风的焓值Hx的范围为25kJ/kg≤Hx≤40kJ/kg时，确定所述送风温度系数为0.5℃，确定所述送风湿度系数为0.75g/kg；When the range of the enthalpy value H x of the outdoor fresh air is 25kJ/ kg≤Hx≤40kJ /kg, the temperature coefficient of the supply air is determined to be 0.5°C, and the humidity coefficient of the supply air is determined to be 0.75g/kg; 控制所述空调器的温度设定系统将所述空调器所设定的温度降低0.5℃；controlling the temperature setting system of the air conditioner to lower the temperature set by the air conditioner by 0.5°C; 控制所述空调器的湿度设定系统将所述空调器所设定的湿度降低0.75g/kg。The humidity setting system of the air conditioner is controlled to lower the humidity set by the air conditioner by 0.75 g/kg. 7.根据权利要求4所述的空调器的控制方法，其特征在于，所述控制方法还包括：7. The control method of an air conditioner according to claim 4, wherein the control method further comprises: 当室外新风的焓值Hx的范围为40kJ/kg＜Hx≤60kJ/kg时，确定所述送风温度系数为1.5℃，确定所述送风湿度系数为1.0g/kg；When the range of the enthalpy value H x of the outdoor fresh air is 40kJ/kg<H x ≤60kJ/kg, the temperature coefficient of the supply air is determined to be 1.5°C, and the humidity coefficient of the supply air is determined to be 1.0g/kg; 控制所述空调器的温度设定系统将所述空调器所设定的温度降低1.5℃；controlling the temperature setting system of the air conditioner to lower the temperature set by the air conditioner by 1.5°C; 控制所述空调器的湿度设定系统将所述空调器所设定的湿度降低1.0g/kg。The humidity setting system of the air conditioner is controlled to lower the humidity set by the air conditioner by 1.0 g/kg. 8.根据权利要求4所述的空调器的控制方法，其特征在于，所述控制方法还包括：8. The control method of an air conditioner according to claim 4, wherein the control method further comprises: 当室外新风的焓值Hx的范围为Hx＞60kJ/kg时，确定所述送风温度系数为2.5℃，确定所述送风湿度系数为1.2g/kg；When the range of the enthalpy value H x of the outdoor fresh air is H x >60kJ/kg, the temperature coefficient of the supply air is determined to be 2.5°C, and the humidity coefficient of the supply air is determined to be 1.2g/kg; 控制所述空调器的温度设定系统将所述空调器所设定的温度降低2.5℃；controlling the temperature setting system of the air conditioner to lower the temperature set by the air conditioner by 2.5°C; 控制所述空调器的湿度设定系统将所述空调器所设定的湿度降低1.2g/kg。The humidity setting system of the air conditioner is controlled to lower the humidity set by the air conditioner by 1.2 g/kg. 9.根据权利要求1所述的空调器的控制方法，其特征在于，当室外新风温度低于室内温度，同时室外新风湿度低于室内湿度，同时室外新风焓值低于室内空气焓值时，所述控制方法还包括：9. The control method of an air conditioner according to claim 1, wherein when the outdoor fresh air temperature is lower than the indoor temperature, the outdoor fresh air humidity is lower than the indoor humidity, and the outdoor fresh air enthalpy value is lower than the indoor air enthalpy value, The control method also includes: 开启空调器的表冷阀；之后，Open the surface cooling valve of the air conditioner; after that, 调节空调器的冷冻泵的频率。Adjust the frequency of the refrigeration pump of the air conditioner. 10.一种空调器，适用于权利要求1至9中任一项所述的空调器的控制方法，其特征在于，所述空调器包括：10. An air conditioner, applicable to the control method of the air conditioner according to any one of claims 1 to 9, wherein the air conditioner comprises: 送风通道，所述送风通道内设置有第一温湿度传感器；an air supply channel, wherein a first temperature and humidity sensor is arranged in the air supply channel; 加湿通道，与所述送风通道连通，所述加湿通道内设置有第二温湿度传感器。The humidification channel is communicated with the air supply channel, and a second temperature and humidity sensor is arranged in the humidification channel. 11.根据权利要求10所述的空调器，其特征在于，所述空调器还包括：11. The air conditioner according to claim 10, wherein the air conditioner further comprises: 执行模块，与所述空调器的冷媒控制阀连接；an execution module, connected to the refrigerant control valve of the air conditioner; 控制模块，与所述执行模块、所述第一温湿度传感器和所述第二温湿度传感器均连接。The control module is connected with the execution module, the first temperature and humidity sensor and the second temperature and humidity sensor. 12.一种非易失性存储介质，其特征在于，所述非易失性存储介质包括存储的程序，其中，所述程序执行权利要求1至9中任一项所述的空调器的控制方法。12. A non-volatile storage medium, wherein the non-volatile storage medium includes a stored program, wherein the program executes the control of the air conditioner according to any one of claims 1 to 9 method.
CN202210571429.0A 2022-05-24 2022-05-24 Control method of air conditioner, air conditioner and nonvolatile storage medium Pending CN114877443A (en)

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Application publication date: 20220809