CN113864980B - Dehumidification control method, device and system for fan coil of air conditioning system - Google Patents
Dehumidification control method, device and system for fan coil of air conditioning system Download PDFInfo
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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
- F24F11/62—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
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The application relates to a dehumidification control method, a dehumidification control device, a dehumidification control system, computer equipment and a storage medium for a fan coil of an air conditioning system, wherein the method comprises the following steps of: acquiring an operating air speed, a preset comfortable wet bulb temperature range and a preset coupling relation between a bypass return air quantity and an environment wet bulb temperature of the air conditioning system, and detecting the environment wet bulb temperature in the air conditioning system; and processing the data to obtain the air valve opening degree of the air conditioning system, and controlling the air conditioning system to operate according to the air valve opening degree to realize the dehumidification control of the fan coil. In the whole process, the opening of the air valve is controlled through the temperature of the environment wet bulb, the bypass return air volume is adjusted, and secondary dehumidification of circulating air is carried out, so that the dehumidification capacity of the fan coil of the air-conditioning system is improved, and the dehumidification control of the fan coil of the air-conditioning system can be reasonably and effectively realized.
Description
Technical Field
The application relates to the technical field of air conditioner control, in particular to a dehumidification control method, device and system for a fan coil of an air conditioning system, computer equipment and a storage medium.
Background
The air conditioning water system can be divided into a medium temperature water large temperature difference system with the medium temperature of 9-13 ℃ according to the water inlet temperature, the medium temperature water large temperature difference system can reduce the circulating water quantity of the air conditioning system on the whole, the pipe diameter of a water pipe is reduced, the operation cost of the water system can be reduced, the initial investment can be reduced, and the air conditioning water system is adopted by a plurality of projects.
In recent years, a medium temperature water system is remarkably and widely researched and applied along with the improvement of chilled water temperature, for example, the common water inlet at 11 ℃ is taken as an example, the outlet water temperature of a main machine is improved by 4 ℃, the raising temperature is improved by 3.5 ℃, and the energy efficiency of the main machine is improved by about 12%, but the improvement of the chilled water supply temperature can cause the reduction of the dehumidification capacity of a fan coil, and the problem that the dehumidification capacity of a fan coil product becomes the most core problem of the medium temperature water system is solved.
In conventional research, the heat exchange performance of a surface cooler of a fan coil is mainly inclined to be improved, and a reasonable and effective scheme is not formed aiming at the dehumidification capacity research at present.
Disclosure of Invention
Therefore, it is necessary to provide a reasonable and effective dehumidification control method, device, system, computer device and storage medium for the fan coil of the air conditioning system, aiming at the technical problem that no reasonable and effective dehumidification control scheme for the fan coil of the air conditioning system exists in the prior art.
A dehumidification control method for a fan coil of an air conditioning system comprises the following steps:
acquiring the running wind speed of an air conditioning system and a preset comfortable wet bulb temperature range;
detecting the temperature of an ambient wet bulb in an air conditioning system;
acquiring a preset coupling relation between the bypass return air volume and the environment wet bulb temperature;
acquiring the opening degree of an air valve of an air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature;
and controlling the operation of the air conditioning system according to the opening degree of the air valve.
In one embodiment, acquiring the operating wind speed of the air conditioning system comprises the following steps:
detecting the rotating speed of a fan of an air conditioning system;
acquiring actual return air volume according to the rotating speed of the fan;
acquiring the windward area of a heat exchange assembly in an air conditioning system;
and obtaining the running wind speed of the air conditioning system according to the windward area and the actual wind return amount.
In one embodiment, obtaining the preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature comprises:
acquiring an initial coupling relational expression of bypass return air volume and environment wet bulb temperature;
acquiring data of bypass return air volume and environmental wet bulb temperature;
and solving an initial coupling relation between the bypass return air volume and the ambient wet bulb temperature according to the data of the bypass return air volume and the ambient wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature.
In one embodiment, the initial coupling relationship between the amount of bypass return air and the ambient wet bulb temperature is as follows:
Q 2 ＝at s 2 +bt s1 +c；
in the formula, Q 2 For bypassing the return air volume, t s Is the ambient wet bulb temperature, t s1 A, b and c are constants for the preset lower limit of the comfortable wet bulb temperature range.
In one embodiment, the obtaining the opening degree of the air valve of the air conditioning system according to the operating air speed, the ambient wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature includes:
comparing the ambient wet bulb temperature with a preset comfortable wet bulb temperature range;
if the environment wet bulb temperature is smaller than the lower limit value of the preset comfortable wet bulb temperature range, the opening degree of the air valve is zero;
and if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain the opening degree of an air valve of the air conditioning system according to the operation air speed, the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature.
In one embodiment, if the ambient wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating the opening of the air valve of the air conditioning system according to the operating air speed, the ambient wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature includes:
if the ambient wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain a bypass return air volume according to the ambient wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature;
and obtaining the opening degree of the air valve according to the bypass return air volume and the operating air speed.
In one embodiment, after controlling the operation of the air conditioning system according to the opening degree of the air valve, the method further comprises the following steps:
delaying the preset time, and returning to the step of detecting the temperature of the environmental wet bulb in the air conditioning system.
An air conditioning system fan coil dehumidification control apparatus, the apparatus comprising:
the data acquisition module is used for acquiring the running wind speed of the air conditioning system and presetting a comfortable wet bulb temperature range;
the detection module is used for detecting the temperature of an environmental wet bulb in the air conditioning system;
the coupling relation acquisition module is used for acquiring the preset coupling relation between the bypass return air volume and the environment wet bulb temperature;
the opening calculation module is used for acquiring the opening of an air valve of the air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air quantity and the environment wet bulb temperature;
and the control module is used for controlling the operation of the air conditioning system according to the opening of the air valve.
In addition, the application also provides a dehumidification control system of the fan coil of the air conditioning system, which comprises a temperature detection assembly, a processor and an air valve adjusting assembly;
the temperature detection assembly detects the temperature of the environment wet bulb in the air conditioning system and sends the temperature of the environment wet bulb to the processor; the processor obtains the running wind speed, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature of the air conditioning system, obtains the air valve opening of the air conditioning system according to the running wind speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature, and sends the air valve opening to the air valve adjusting assembly; and the air valve adjusting assembly adjusts the bypass return air volume of the air conditioning system according to the opening degree of the air valve.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
acquiring the running wind speed of an air conditioning system and a preset comfortable wet bulb temperature range;
detecting the temperature of an environmental wet bulb in an air conditioning system;
acquiring a preset coupling relation between bypass return air volume and environment wet bulb temperature;
acquiring the opening degree of an air valve of an air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature;
and controlling the operation of the air conditioning system according to the opening degree of the air valve.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring the running wind speed of an air conditioning system and a preset comfortable wet bulb temperature range;
detecting the temperature of an ambient wet bulb in an air conditioning system;
acquiring a preset coupling relation between bypass return air volume and environment wet bulb temperature;
acquiring the opening degree of an air valve of an air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature;
and controlling the air conditioning system to operate according to the opening degree of the air valve.
According to the dehumidification control method, the dehumidification control device, the dehumidification control system, the computer equipment and the storage medium of the fan coil of the air-conditioning system, the running wind speed, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air quantity and the environment wet bulb temperature of the air-conditioning system are obtained, and the environment wet bulb temperature in the air-conditioning system is detected; and processing the data to obtain the air valve opening degree of the air conditioning system, and controlling the air conditioning system to operate according to the air valve opening degree to realize the dehumidification control of the fan coil. In the whole process, the opening of the air valve is controlled through the temperature of the environment wet bulb, the bypass air return quantity is adjusted, and secondary dehumidification of circulating air is carried out, so that the dehumidification capacity of the fan coil of the air conditioning system is improved, and the dehumidification control of the fan coil of the air conditioning system can be reasonably and effectively realized.
Drawings
FIG. 1 is a schematic view of a fan coil configuration of an air conditioning system;
FIG. 2 is a schematic flow chart illustrating a method for controlling dehumidification of a fan coil of an air conditioning system according to one embodiment;
FIG. 3 is a schematic diagram illustrating a sub-flow of S100 according to an embodiment;
FIG. 4 is a schematic flow chart of iterative coupling in one embodiment;
FIG. 5 is a schematic flow chart of a method for controlling dehumidification of a fan coil of an air conditioning system according to an exemplary embodiment;
FIG. 6 is a block diagram of an embodiment of an air conditioning system fan coil dehumidification control apparatus;
FIG. 7 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
To further explain the technical principle of the dehumidification control method for the fan coil of the air conditioning system in detail, some relevant technical contents will be first introduced.
The specific structure of the fan coil of the air conditioning system is shown in fig. 1, and in the prior art, a mode of increasing the heat exchange area is generally adopted to improve the heat exchange performance of a surface cooler of the fan coil. Research shows that the performance change characteristics of the conventional fan coil along with water temperature and temperature difference are as follows: when the water inlet temperature is increased by 1 ℃, the performance is reduced by about 12 percent, and the dehumidification capacity is reduced by 30 percent; only the air quantity is increased, the power is increased, and the comfort requirement is difficult to meet when cold water enters the water at the temperature of more than 9 ℃; therefore, the traditional fan coil only increases the heat exchange area and cannot meet the dehumidification requirement of a medium-temperature water large-temperature-difference system. Aiming at the condition that the technical defects exist in the prior art, the dehumidification control scheme of the fan coil of the air conditioning system is provided, the bypass return air volume is controlled in real time through the temperature change of an environment wet bulb, secondary dehumidification of circulating air is carried out, the dehumidification degree capability of the fan coil in the air conditioning system is improved, and the purpose of heat, humidity and comfort is achieved in a medium-temperature water large-temperature-difference energy-saving system.
In one embodiment, as shown in fig. 2, a method for controlling dehumidification of a fan coil of an air conditioning system is provided, comprising the steps of:
s100: and acquiring the running wind speed of the air conditioning system and presetting a comfortable wet bulb temperature range.
The running wind speed refers to the real-time running wind speed of a fan coil in the reclaimed water air-conditioning system, can be directly acquired through a sensor, and can be further calculated by detecting the rotating speed of the fan and the windward area of the heat exchange assembly. The preset comfort temperature range is a preset wet bulb temperature range interval that is comfortable for the user, for example, 24 ℃ to 27 ℃, within which the ambient humidity felt by the user is comfortable. Specifically, the preset comfortable wet bulb temperature range may be based on historical data, analysis of user preferences, and feedback settings.
S200: ambient wet bulb temperature in an air conditioning system is detected.
The ambient wet bulb temperature in the air conditioning system can be sensed by sensing. Optionally, the detection may be performed by averaging multiple detections, so as to improve the detection accuracy.
S300: and acquiring a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature.
The preset coupling relation between the bypass return air volume and the environmental wet bulb temperature is a corresponding relation which is constructed in advance and can be calculated through coupling of a complex iterative relation. Specifically, aiming at different air conditioning systems, the required bypass circulating air volume can be firstly calculated according to parameters in an output pipe, the assumed air outlet temperature is calculated according to the heat exchange efficiency of the fin type heat exchanger, the total heat exchange volume generated by fluid in the tube of the fin type heat exchanger and fluid outside the tube is basically leveled (the deviation is within the range of +/-5%) through repeated iterative calculation, and the total heat exchange volume and the bypass circulating air volume are obtained through calculationIntroducing parameters such as return air quantity and environment wet bulb temperature, and coupling to obtain an initial relation Q of the coupling relation between the bypass return air quantity and the environment wet bulb temperature 2 ＝at s 2 +bt s1 + c; in the formula, Q 2 For bypassing the return air volume, t s Is the ambient wet bulb temperature, t s1 A, b and c are constants for presetting the lower limit value of the comfortable wet bulb temperature range. In addition, the data of bypass return air volume and environmental wet bulb temperature can be obtained in a test state, and the Q is solved through the data 2 ＝at s 2 +bt s1 And + c, obtaining a final coupling relational expression of the bypass return air volume and the environmental wet bulb temperature specifically aiming at the current model air conditioning system.
Specifically, the preset comfortable wet bulb temperature ranges at different relative humidities are specifically shown in table 1 below:
TABLE 1 Preset comfortable Wet bulb temperature Range at different relative humidities
Furthermore, in the solving process, data outside the deviation range can be removed through a large amount of data, reasonable data is kept, a formula is established through data fitting of a quadratic curve, and then a plurality of groups of actual test data are substituted into the Q 2 ＝at s 2 +bt s1 The functional relation of + c solves the constants of a, b and c.
S400: and acquiring the opening degree of an air valve of the air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air volume and the environment wet bulb temperature.
Because the corresponding relation (conversion relation) exists among the operation air speed, the environment wet bulb temperature, the bypass return air volume and the air valve opening, the air valve opening of the air conditioning system can be obtained according to the operation air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air volume and the environment wet bulb temperature.
S500: and controlling the operation of the air conditioning system according to the opening degree of the air valve.
After the opening degree of the air valve is determined, the operation of the air conditioning system is controlled according to the opening degree of the air valve so as to realize dehumidification compensation and bring a comfortable environment to a user.
According to the dehumidification control method for the fan coil of the air conditioning system, the running air speed, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature of the air conditioning system are obtained, and the environment wet bulb temperature in the air conditioning system is detected; and processing according to the obtained data to obtain the air valve opening degree of the air conditioning system, and controlling the air conditioning system to operate according to the air valve opening degree to realize the dehumidification control of the fan coil. In the whole process, the opening of the air valve is controlled through the temperature of the environment wet bulb, the bypass air return quantity is adjusted, and secondary dehumidification of circulating air is carried out, so that the dehumidification capacity of the fan coil of the air conditioning system is improved, and the dehumidification control of the fan coil of the air conditioning system can be reasonably and effectively realized.
As shown in fig. 3, in one embodiment, S100 includes:
s120: detecting the rotating speed of a fan of an air conditioning system;
s140: acquiring actual return air volume according to the rotating speed of the fan;
s160: acquiring the windward area of a heat exchange assembly in an air conditioning system;
s180: and obtaining the running wind speed of the air conditioning system according to the windward area and the actual wind return amount.
Detecting running speed n of fan 1 Obtaining rated return air quantity Q through a relation Q 1 ＝Q n 1 The actual operation return air quantity Q is calculated by the/n 1 (ii) a Obtaining the windward area m of a heat exchange component in an air conditioning system through the relation V = Q 1 /m 2 And calculating to obtain the running wind speed V of the air conditioning system.
In one embodiment, obtaining the preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature comprises:
acquiring an initial coupling relational expression of bypass return air volume and environment wet bulb temperature; acquiring data of bypass return air volume and environmental wet bulb temperature; and solving an initial coupling relation between the bypass return air volume and the ambient wet bulb temperature according to the data of the bypass return air volume and the ambient wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature.
The initial coupling relation between the bypass return air volume and the ambient wet bulb temperature can be calculated through coupling of a complex iterative relation, and the initial coupling relation can be constructed through coupling based on a principle of balance of total heat exchange volume generated by fluid inside and fluid outside a heat exchange assembly pipe in a warm water air-conditioning system. Taking a heat exchange assembly as an example of a finned heat exchanger, calculating the assumed air outlet temperature according to the heat exchange efficiency of the finned heat exchanger, repeatedly and iteratively calculating to ensure that the total heat exchange quantity generated by fluid inside and fluid outside a finned heat exchanger tube respectively is basically equal, the deviation is within a range of +/-5 percent, the default assumed parameter is accurate, and calculating to obtain the total heat exchange quantity and an environment wet bulb temperature parameter, thereby coupling out a relation Q between bypass circulation air quantity and environment wet bulb temperature 2 ＝at s 2 +bt s1 + c; in the formula, Q 2 For bypassing the return air volume, t s Is the ambient wet bulb temperature, t s1 A, b and c are constants for presetting the lower limit value of the comfortable wet bulb temperature range.
Specifically, as shown in fig. 4, the whole iteration process includes an inside-tube parameter calculation process and an outside-tube parameter technical calculation process, and the inside-tube total heat exchange flow and the outside-tube total heat exchange amount are respectively calculated, and the final inside-tube outside air outlet parameters are obtained through continuous iteration adjustment. Specifically, as shown in fig. 4, the intra-tube calculation flow includes: inputting the parameters of air inlet outside the pipe → supposing the temperature of air outlet outside the pipe → calculating the relative humidity of air outlet outside the pipe → calculating the total heat exchange quantity outside the pipe; the calculation process for out of tube comprises: inputting an external air inlet parameter → assuming an external air outlet temperature → calculating the heat and humidity heat exchange quantity in the pipe according to the external air outlet relative humidity → calculating the latent heat release quantity of condensed water vapor condensed into liquid water → the quantity of condensed water in the pipe → the air outlet moisture content in the pipe → calculating the air outlet relative humidity in the pipe → calculating the total heat exchange quantity in the pipe; and comparing the total heat exchange quantity outside the pipe with the total heat exchange quantity inside the pipe, judging whether the deviation between the total heat exchange quantity and the total heat exchange quantity inside the pipe is 5%, if so, outputting corresponding air outlet parameters inside and outside the pipe, and finishing iteration.
In one embodiment, obtaining the opening degree of the air valve of the air conditioning system according to the operating air speed, the ambient wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature includes:
comparing the ambient wet bulb temperature with a preset comfortable wet bulb temperature range; if the environment wet bulb temperature is smaller than the lower limit value of the preset comfortable wet bulb temperature range, the opening degree of the air valve is zero; and if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain the opening degree of an air valve of the air conditioning system according to the operation air speed, the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature.
The contrast environment wet bulb temperature and predetermine comfortable wet bulb temperature range, if the environment wet bulb temperature is less than the lower limit value of predetermineeing comfortable wet bulb temperature range, then indicate not need dehumidification compensation, the blast gate aperture is 0 this moment, closes the blast gate promptly. The lower limit value of the environment wet bulb temperature not less than the preset comfortable wet bulb temperature range comprises two conditions, namely, the first condition is that the environment wet bulb temperature is greater than the lower limit value t of the preset comfortable wet bulb temperature range s1 And is less than the upper limit value t of the preset comfortable wet bulb temperature range s2 + a predetermined constant value (typically 3 ℃); secondly, the temperature of the environment wet bulb is more than or equal to the upper limit value t of the preset comfortable wet bulb temperature range s2 The constant value is preset, the opening degree of the air valve needs to be calculated for the two conditions, strong dehumidification is needed for the second condition, and after the opening degree of the air valve is obtained, the air conditioning system operates according to the opening degree of the air valve and enters a strong dehumidification mode; and aiming at the first condition, compensation dehumidification is needed, after the opening degree of the air valve is obtained, the air conditioning system operates according to the opening degree of the air valve and enters a compensation dehumidification mode, and the fan operates according to a set wind speed.
In one embodiment, calculating the opening degree of the air valve of the air conditioning system comprises:
if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain a bypass return air volume according to the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and a preset coupling relation between the bypass return air volume and the environment wet bulb temperature; and obtaining the opening degree of the air valve according to the bypass return air volume and the operating air speed.
Specifically, when the ambient wet bulb temperature ts is not less than the lower limit t of the preset comfortable wet bulb temperature range s1 According to the ambient wet bulb temperature t s Presetting a lower limit value t of a comfortable wet bulb temperature range s1 And the bypass return air volume and the environmental wet bulb temperature preset coupling relation Q 2 ＝at s 2 +bt s1 + c, calculating to obtain the bypass return air quantity Q 2 (ii) a In addition, the bypass return air quantity Q 2 = KV, where V is the operating wind speed and K is the damper opening, so the final damper opening can be calculated.
In one embodiment, after controlling the operation of the air conditioning system according to the opening degree of the air valve, the method further comprises the following steps: delaying the preset time, and returning to the step of detecting the temperature of the environmental wet bulb in the air conditioning system.
The preset time is a preset time, which can be set according to actual conditions, and can be, for example, 30S, 60S, and the like. The dehumidification control of the fan coil of the air conditioning system is a continuous process, and after a certain time delay, the temperature of an environment wet bulb in the air conditioning system is detected again, and a new round of control is started.
In order to describe the technical solution and effect of the dehumidification control method for the fan coil of the air conditioning system in detail, a specific example will be used below with reference to fig. 5. The whole scheme comprises the following steps:
1. detecting the rotating speed of a fan; entering the step 2;
2. calculating the return air quantity Q according to the rotating speed of the fan 1 (ii) a Entering the step 3;
3. according to the return air quantity Q 1 Calculating an operation wind speed V; entering the step 4;
4. detecting the wet bulb temperature t s If wet bulb temperature t s Is less than the lower limit value t of the preset comfortable temperature range s1 If so, closing the air valve; if t s Is more than or equal to the upper limit value t of the preset comfortable temperature range s2+ Entering step 5 at 3 ℃; if t s1 ≤t s ≤t s2 If the temperature is +3 ℃, entering a step 8;
5. according to the ambient wet bulb temperature t s Presetting a lower limit value t of a comfortable wet bulb temperature range s1 And the bypass return air volume and the environmental wet bulb temperature preset coupling relation Q 2 ＝at s 2 +bt s1 + c, calculating to obtain the bypass return air quantity Q 2 (ii) a Entering step 6;
6. according to the running wind speed V and the bypass return air quantity Q 2 Calculating the opening degree of the air valve, and opening the air valve; entering step 7;
7. operating according to a super-strong gear, and entering a strong dehumidification mode;
8. according to the ambient wet bulb temperature t s Presetting a lower limit value t of a comfortable wet bulb temperature range s1 And the bypass return air volume and the environmental wet bulb temperature preset coupling relation Q 2 ＝at s 2 +bt s1 + c, calculating to obtain the bypass return air quantity Q 2 (ii) a Entering a step 9;
9. according to the running wind speed V and the bypass return air quantity Q 2 Calculating the opening of the air valve and opening the air valve; entering the step 10;
10. and operating according to the set wind gear.
It should be understood that, although the steps in the flowcharts are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a part of the steps in each of the flowcharts described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.
As shown in fig. 6, the present application further provides a dehumidification control device for a fan coil of an air conditioning system, the device comprising:
the data acquisition module 100 is used for acquiring the operating wind speed of the air conditioning system and a preset comfortable wet bulb temperature range;
the detection module 200 is used for detecting the temperature of the ambient wet bulb in the air conditioning system;
a coupling relation obtaining module 300, configured to obtain a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature;
the opening calculation module 400 is configured to obtain an air valve opening of the air conditioning system according to the operating air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range, and the preset coupling relationship between the bypass return air volume and the environment wet bulb temperature;
and the control module 500 is used for controlling the operation of the air conditioning system according to the opening degree of the air valve.
The dehumidification control device of the fan coil of the air conditioning system acquires the running air speed, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature of the air conditioning system, and detects the environment wet bulb temperature in the air conditioning system; and processing according to the obtained data to obtain the air valve opening degree of the air conditioning system, and controlling the air conditioning system to operate according to the air valve opening degree to realize the dehumidification control of the fan coil. In the whole process, the opening of the air valve is controlled through the temperature of the environment wet bulb, the bypass air return quantity is adjusted, and secondary dehumidification of circulating air is carried out, so that the dehumidification capacity of the fan coil of the air conditioning system is improved, and the dehumidification control of the fan coil of the air conditioning system can be reasonably and effectively realized.
In one embodiment, the data acquisition module 100 is further configured to detect a fan speed of the air conditioning system; acquiring actual return air volume according to the rotating speed of the fan; acquiring the windward area of a heat exchange assembly in an air conditioning system; and obtaining the running wind speed of the air conditioning system according to the windward area and the actual return wind volume.
In one embodiment, the coupling relationship obtaining module 300 is further configured to obtain an initial coupling relationship between the bypass return air volume and the ambient wet bulb temperature; acquiring data of bypass return air volume and environmental wet bulb temperature; and solving an initial coupling relation between the bypass return air volume and the ambient wet bulb temperature according to the data of the bypass return air volume and the ambient wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature.
In one embodiment, the initial coupling relationship between the bypass return air volume and the ambient wet bulb temperature is as follows:
Q 2 ＝at s 2 +bt s1 +c；
in the formula, Q 2 For bypassing the return air volume, t s Ambient wet bulb temperature, t s1 A, b and c are constants for presetting the lower limit value of the comfortable wet bulb temperature range.
In one embodiment, the opening calculation module 400 is further configured to compare the ambient wet bulb temperature with a preset comfortable wet bulb temperature range; if the environmental wet bulb temperature is smaller than the lower limit value of the preset comfortable wet bulb temperature range, the opening degree of the air valve is zero; and if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain the air valve opening of the air conditioning system according to the running air speed, the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air volume and the environment wet bulb temperature.
In one embodiment, the opening calculation module 400 is further configured to calculate a bypass return air volume according to the ambient wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range, and a preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature if the ambient wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range; and obtaining the opening degree of the air valve according to the bypass return air volume and the operating air speed.
In one embodiment, the dehumidification control device for a fan coil of an air conditioning system further includes a circulation module, configured to delay a preset time, and control the detection module 200 to perform an operation of detecting an ambient wet bulb temperature in the air conditioning system again.
In addition, the application also provides a dehumidification control system of the fan coil of the air conditioning system, which comprises a temperature detection assembly, a processor and an air valve adjusting assembly;
the temperature detection assembly detects the temperature of the environment wet bulb in the air conditioning system and sends the temperature of the environment wet bulb to the processor; the processor obtains the running wind speed, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature of the air conditioning system, obtains the air valve opening of the air conditioning system according to the running wind speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature, and sends the air valve opening to the air valve adjusting assembly; the air valve adjusting component adjusts the bypass return air quantity of the air conditioning system according to the opening degree of the air valve
For the specific embodiment of the dehumidification control device for the fan coil of the air conditioning system, reference may be made to the above embodiment of the dehumidification control method for the fan coil of the air conditioning system, and details are not repeated here. All or part of each module in the dehumidification control device of the fan coil of the air conditioning system can be realized by software, hardware and combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 7. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method for controlling dehumidification of a fan coil of an air conditioning system. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the configuration shown in fig. 7 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
acquiring the running wind speed of an air conditioning system and a preset comfortable wet bulb temperature range;
detecting the temperature of an ambient wet bulb in an air conditioning system;
acquiring a preset coupling relation between the bypass return air volume and the environment wet bulb temperature;
acquiring the opening degree of an air valve of an air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature;
and controlling the operation of the air conditioning system according to the opening degree of the air valve.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
detecting the rotating speed of a fan of an air conditioning system; acquiring actual return air volume according to the rotating speed of the fan; acquiring the windward area of a heat exchange assembly in an air conditioning system; and obtaining the running wind speed of the air conditioning system according to the windward area and the actual wind return amount.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring an initial coupling relational expression of bypass return air volume and environment wet bulb temperature; acquiring data of bypass return air volume and environmental wet bulb temperature; and according to the data of the bypass return air volume and the environmental wet bulb temperature, solving an initial coupling relation between the bypass return air volume and the environmental wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the environmental wet bulb temperature.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
comparing the ambient wet bulb temperature with a preset comfortable wet bulb temperature range; if the environment wet bulb temperature is smaller than the lower limit value of the preset comfortable wet bulb temperature range, the opening degree of the air valve is zero; and if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain the opening degree of an air valve of the air conditioning system according to the operation air speed, the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature.
In one embodiment, the processor when executing the computer program further performs the steps of:
if the ambient wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain a bypass return air volume according to the ambient wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature; and obtaining the opening degree of the air valve according to the bypass return air volume and the operating air speed.
In one embodiment, the processor when executing the computer program further performs the steps of:
delaying the preset time, and returning to the step of detecting the temperature of the environmental wet bulb in the air conditioning system.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, performs the steps of:
acquiring the running wind speed of an air conditioning system and a preset comfortable wet bulb temperature range;
detecting the temperature of an ambient wet bulb in an air conditioning system;
acquiring a preset coupling relation between bypass return air volume and environment wet bulb temperature;
acquiring the opening degree of an air valve of an air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air quantity and the environment wet bulb temperature;
and controlling the air conditioning system to operate according to the opening degree of the air valve.
In one embodiment, the computer program when executed by the processor further performs the steps of:
detecting the rotating speed of a fan of an air conditioning system; acquiring actual return air volume according to the rotating speed of the fan; acquiring the windward area of a heat exchange assembly in an air conditioning system; and obtaining the running wind speed of the air conditioning system according to the windward area and the actual wind return amount.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring an initial coupling relational expression of bypass return air volume and environment wet bulb temperature; acquiring data of bypass return air volume and environmental wet bulb temperature; and according to the data of the bypass return air volume and the environmental wet bulb temperature, solving an initial coupling relation between the bypass return air volume and the environmental wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the environmental wet bulb temperature.
In one embodiment, the computer program when executed by the processor further performs the steps of:
comparing the ambient wet bulb temperature with a preset comfortable wet bulb temperature range; if the environmental wet bulb temperature is smaller than the lower limit value of the preset comfortable wet bulb temperature range, the opening degree of the air valve is zero; and if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain the air valve opening of the air conditioning system according to the running air speed, the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air volume and the environment wet bulb temperature.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if the ambient wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain a bypass return air volume according to the ambient wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and a preset coupling relation between the bypass return air volume and the ambient wet bulb temperature; and obtaining the opening degree of the air valve according to the bypass return air volume and the running air speed.
In one embodiment, the computer program when executed by the processor further performs the steps of:
delaying the preset time, and returning to the step of detecting the temperature of the environmental wet bulb in the air conditioning system.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), for example.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A dehumidification control method for a fan coil of an air conditioning system is characterized by comprising the following steps:
acquiring the running wind speed of an air conditioning system and a preset comfortable wet bulb temperature range;
detecting the temperature of an environmental wet bulb in an air conditioning system;
acquiring a preset coupling relation between bypass return air volume and environment wet bulb temperature;
acquiring the opening degree of an air valve of an air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air volume and the environment wet bulb temperature;
controlling the operation of an air conditioning system according to the opening of the air valve;
the step of obtaining the preset coupling relation between the bypass return air volume and the environment wet bulb temperature comprises the following steps: and according to the data of the bypass return air volume and the environmental wet bulb temperature, solving an initial coupling relation between the bypass return air volume and the environmental wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the environmental wet bulb temperature.
2. The method of claim 1, wherein the obtaining an operating wind speed of an air conditioning system comprises:
detecting the rotating speed of a fan of an air conditioning system;
acquiring actual return air volume according to the rotating speed of the fan;
acquiring the windward area of a heat exchange assembly in an air conditioning system;
and obtaining the running wind speed of the air conditioning system according to the windward area and the actual wind return amount.
3. The method of claim 1, wherein the initial coupling of the bypass return air volume to the ambient wet bulb temperature is as follows:
Q 2 ＝at s 2 +bt s1 +c；
in the formula, Q 2 For bypassing the return air volume, t s Ambient wet bulb temperature, t s1 A, b and c are constants for the lower limit of the preset comfortable wet bulb temperature range.
4. The method of claim 1, wherein obtaining the opening degree of the damper of the air conditioning system according to the operating wind speed, the ambient wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relationship between the bypass return air quantity and the ambient wet bulb temperature comprises:
comparing the ambient wet bulb temperature with the preset comfortable wet bulb temperature range;
if the environment wet bulb temperature is smaller than the lower limit value of the preset comfortable wet bulb temperature range, the opening degree of the air valve is zero;
and if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain the air valve opening of the air conditioning system according to the running air speed, the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air volume and the environment wet bulb temperature.
5. The method of claim 4, wherein if the ambient wet bulb temperature is not less than the lower limit of the preset comfortable wet bulb temperature range, calculating the opening of the air valve of the air conditioning system according to the operating air speed, the ambient wet bulb temperature, the lower limit of the preset comfortable wet bulb temperature range, and the preset coupling relationship between the bypass return air volume and the ambient wet bulb temperature comprises:
if the environment wet bulb temperature is not less than the lower limit value of the preset comfortable wet bulb temperature range, calculating to obtain a bypass return air volume according to the environment wet bulb temperature, the lower limit value of the preset comfortable wet bulb temperature range and a preset coupling relation between the bypass return air volume and the environment wet bulb temperature;
and obtaining the opening degree of the air valve according to the bypass return air volume and the operating air speed.
6. The method of claim 1, wherein after the controlling the air conditioning system to operate according to the opening degree of the air valve, the method further comprises:
delaying the preset time, and returning to the step of detecting the temperature of the environmental wet bulb in the air conditioning system.
7. The utility model provides an air conditioning system fan coil dehumidification controlling means which characterized in that, the device includes:
the data acquisition module is used for acquiring the running wind speed of the air conditioning system and the preset comfortable wet bulb temperature range;
the detection module is used for detecting the temperature of the ambient wet bulb in the air conditioning system;
the coupling relation acquisition module is used for acquiring the preset coupling relation between the bypass return air volume and the environment wet bulb temperature;
the opening calculation module is used for acquiring the opening of an air valve of the air conditioning system according to the running air speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air volume and the environment wet bulb temperature;
the control module is used for controlling the operation of the air conditioning system according to the opening degree of the air valve;
the coupling relation obtaining module is further used for solving an initial coupling relation between the bypass return air volume and the environment wet bulb temperature according to the bypass return air volume and the environment wet bulb temperature data to obtain a preset coupling relation between the bypass return air volume and the environment wet bulb temperature.
8. A dehumidification control system of a fan coil of an air conditioning system is characterized by comprising a temperature detection assembly, a processor and an air valve adjusting assembly;
the temperature detection assembly detects the temperature of an environment wet bulb in an air conditioning system and sends the temperature of the environment wet bulb to the processor; the processor obtains an operation wind speed, a preset comfortable wet bulb temperature range and a preset coupling relation between a bypass return air volume and an environment wet bulb temperature of the air conditioning system, obtains an air valve opening of the air conditioning system according to the operation wind speed, the environment wet bulb temperature, the preset comfortable wet bulb temperature range and the preset coupling relation between the bypass return air volume and the environment wet bulb temperature, and sends the air valve opening to the air valve adjusting assembly; the air valve adjusting assembly adjusts the bypass return air volume of the air conditioning system according to the opening degree of the air valve; obtaining the preset coupling relation between the bypass return air volume and the environment wet bulb temperature comprises the following steps: and according to the data of the bypass return air volume and the environmental wet bulb temperature, solving an initial coupling relation between the bypass return air volume and the environmental wet bulb temperature to obtain a preset coupling relation between the bypass return air volume and the environmental wet bulb temperature.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 6.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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| US6427454B1 (en) * | 2000-02-05 | 2002-08-06 | Michael K. West | Air conditioner and controller for active dehumidification while using ambient air to prevent overcooling |
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