Temperature and humidity control system and method

Abstract

The invention discloses a temperature and humidity control system and method in the technical field of air conditioning equipment. The system comprises an air inlet module, a measurement module, a proportion calculation module, a temperature and humidity module and an air supply module which are sequentially connected. The measuring module is used for acquiring the average temperature and the average moisture content of the workshop; the calculation module is used for calculating a temperature proportion of a difference value between the average workshop temperature and a preset temperature threshold value in the preset temperature threshold value and a humidity proportion of a difference value between the average workshop moisture content and a preset humidity threshold value in the preset humidity threshold value; the temperature and humidity module is used for controlling the opening degree of a surface cooling electric valve according to the temperature proportion and controlling the opening degree of a dehumidification electric valve, the opening degree of an air valve and the opening degree of the surface cooling electric valve according to the humidity proportion. The technical problem that in the prior art, due to the fact that existing temperature and humidity adjustment is conducted at the same time, if the preset return air temperature is reached, a heating valve needs to be opened again to heat return air, and energy is wasted is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning equipment and relates to a temperature and humidity control system and method. Background Art

[0002] When the single-fan air conditioner in the power workshop of the cigarette factory is operating normally, if the mixed humidity of the return air and the fresh air is high and needs to be dehumidified, the surface cooling electric valve opening is usually adjusted first to dehumidify and reduce the temperature, and then the heating valve opening is adjusted according to the set temperature to achieve air supply at the predetermined temperature and humidity. However, since the existing temperature and humidity adjustments are carried out simultaneously, the temperature will also decrease when the humidity decreases, and the return air will be overcooled. If the predetermined return air temperature is reached, the heating valve must be reopened to heat the return air, resulting in energy waste.

[0003] Therefore, there is an urgent need for a temperature and humidity control system and method to solve the above technical problems. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a temperature and humidity control system and method that can solve the technical problem in the prior art that since the existing temperature and humidity adjustments are all carried out simultaneously, if the predetermined return air temperature is reached, the heating valve needs to be reopened to heat the return air, resulting in energy waste.

[0005] In order to alleviate the above technical problems, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a temperature and humidity control system, comprising: An air intake module, a measurement module, a ratio calculation module, a temperature and humidity module, and an air supply module are connected in sequence; The measuring module is used to obtain the average temperature and the average moisture content of the workshop; The calculation module is used to calculate the temperature ratio of the difference between the average temperature of the workshop and the preset temperature threshold to the preset temperature threshold, and the humidity ratio of the difference between the average moisture content of the workshop and the preset humidity threshold to the preset humidity threshold; The temperature and humidity module is used to control the opening of the surface cooling electric valve according to the temperature ratio, and to control the opening of the dehumidification electric valve, the air valve and the surface cooling electric valve according to the humidity ratio; The temperature and humidity module includes a cooling surface cooler and a dehumidifying surface cooler arranged according to the air inlet direction, the dehumidifying surface cooler includes a dehumidifying electric valve and an air valve, and the cooling surface cooler includes a surface cooling electric valve.

[0006] Furthermore, the filter cartridge filter module arranged between the air intake module and the measuring module is used to filter particulate matter and harmful pollutants entering from the air intake module.

[0007] Furthermore, a dry steam heating module arranged after the temperature and humidity module is used to strengthen the control of temperature.

[0008] Furthermore, a steam humidification module arranged between the air supply module and the dry steam heating module is used to humidify the heated dry steam.

[0009] In a second aspect, the present invention provides a temperature and humidity control method, which is performed by the above-mentioned temperature and humidity control system, comprising: Get the average workshop temperature and average workshop humidity; Calculate the temperature ratio of the difference between the average temperature of the workshop and the preset temperature threshold to the preset temperature threshold, and the humidity ratio of the difference between the average moisture content of the workshop and the preset humidity threshold to the preset humidity threshold; The opening of the surface cooling electric valve is controlled according to the temperature ratio, and the opening of the dehumidification electric valve, the air valve and the surface cooling electric valve is controlled according to the humidity ratio.

[0010] Further, controlling the opening of the cooling electric valve according to the temperature ratio includes: When the temperature ratio is greater than 2%, the opening of the surface cooling electric valve is controlled to be a, and the opening of the surface cooling electric valve after the workshop surface cooling is positively correlated with the real-time average temperature after the workshop surface cooling; When the temperature ratio is 0, the opening of the surface cooling electric valve is 0, and the cooling surface cooler stops working.

[0011] Furthermore, a=30%.

[0012] Further, controlling the dehumidification electric valve opening, the air valve opening and the surface cooling electric valve opening according to the humidity ratio includes: When the humidity ratio is greater than 4%, the dehumidification electric valve opening is controlled to be greater than or equal to 95% and less than 100%, the air valve opening is 5%, and the surface cooling electric valve opening is d. The surface cooling electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified. When the humidity ratio is greater than 2% and less than 4%, the dehumidification electric valve opening is controlled to be c, the air valve opening is greater than or equal to 5%, and the surface cooling electric valve is closed. The dehumidification electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified, and the air valve opening after the workshop is dehumidified is negatively correlated with the real-time average moisture content after the workshop is dehumidified; When the humidity ratio is greater than 0 and less than 2%, the dehumidification electric valve opening is controlled to be b, the air valve opening is 100%, and the surface cooling electric valve is closed. The dehumidification electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified. When the humidity ratio is 0, the opening of the dehumidification electric valve is 0, and the dehumidification surface cooler stops working.

[0013] Furthermore, b=d=30%, c=50%.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Based on the obtained average temperature and average humidity of the workshop, the temperature ratio and humidity ratio are calculated, and the temperature and humidity of the workshop are adjusted based on the temperature ratio and humidity ratio by the cooling surface cooler and the dehumidifying surface cooler that are set to independently control the temperature and humidity adjustment. The temperature and humidity control are separated by the two surface coolers. When the air cooled by the cooling surface cooler passes through the dehumidifying surface cooler, the air temperature will not be further reduced because the dehumidifying surface cooler only has a dehumidification function, so that there is no need to heat the air through the heating valve, saving resources; The opening of the electric valve for controlling the cooling surface is adjusted according to the temperature ratio. When the workshop temperature is equal to the preset temperature threshold, that is, when the temperature ratio is 0, the cooling surface cooler stops working, thus achieving accurate temperature control and energy saving effects; The opening of the dehumidification electric valve is controlled according to the humidity ratio. When the workshop humidity is equal to the preset humidity threshold, that is, when the humidity ratio is 0, the dehumidification surface cooler stops working, thereby achieving accurate control of humidity and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a temperature and humidity control method provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure of a temperature and humidity control system provided in Example 1 of the present invention.

[0016] Among them, 1. Air intake module; 2. Filter cartridge filtration module; 3. Temperature and humidity module; 4. Dry steam heating module; 5. Steam humidification module; 6. Air supply module. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Embodiment 1:

[0020] like Figure 1 As shown, this embodiment provides a temperature and humidity control system, including: The air intake module 1, the measurement module, the ratio calculation module, the temperature and humidity module 3 and the air supply module 6 are connected in sequence; The measuring module is used to obtain the average temperature and average moisture content of the workshop. The average temperature of the workshop can be obtained by installing a temperature sensor in the workshop and using a mature data acquisition system to record and analyze temperature data. Environmental test equipment can be used to measure humidity, and the equipment is calibrated in accordance with national metrology technical specifications to finally obtain the average moisture content of the workshop. The calculation module is used to calculate the temperature ratio of the difference between the average temperature of the workshop and the preset temperature threshold to the preset temperature threshold, and the humidity ratio of the difference between the average moisture content of the workshop and the preset humidity threshold to the preset humidity threshold. The preset temperature threshold and the preset humidity threshold can be adjusted according to actual needs; The temperature and humidity module 3 includes a cooling surface cooler and a dehumidifying surface cooler arranged according to the air inlet direction, that is, the air inlet first passes through the cooling surface cooler and then passes through the dehumidifying surface cooler, the dehumidifying surface cooler includes a dehumidifying electric valve and an air valve, and the cooling surface cooler includes a surface cooling electric valve, which is used to control the opening of the surface cooling electric valve according to the temperature ratio, and control the opening of the dehumidification electric valve, the opening of the air valve and the opening of the surface cooling electric valve according to the humidity ratio; In this embodiment, the dehumidification electric valve and the air valve are located in the same horizontal plane of the working frame, that is, the air passing through the cooling surface cooler passes through the dehumidification electric valve and the air valve again.

[0021] It also includes a cartridge filter module 2 arranged between the air intake module 1 and the measuring module, which is used to filter particulate matter and harmful pollutants entering from the air intake module 1. The filter material of the cartridge filter module 2 can be wood pulp fiber filter paper or spunbonded polyester fiber non-woven fabric, wherein the polyester non-woven fabric can be coated to be oil-proof, waterproof, and anti-static.

[0022] The dry steam heating module 4 is arranged after the temperature and humidity module 3, and the dry steam heating module 4 includes a heat exchanger. The heat exchanger is the core component of the heating module and is usually composed of a series of closely arranged pipes or plates to realize heat exchange between steam and air. In order to increase the heat exchange area and improve the heating efficiency, the heat exchanger can be equipped with heat sinks or fins around it to strengthen the temperature control.

[0023] The steam humidification module 5 arranged between the air supply module 6 and the dry steam heating module 4 is used to strengthen the control of humidity. After the temperature and humidity control of the above modules, the final air is sent to the atmosphere through the air supply module. Embodiment 2:

[0024] like Figure 2 As shown, the present invention provides a control method for a temperature and humidity control system as described in the first embodiment above, comprising: Get the average workshop temperature and average workshop humidity; Calculate the temperature ratio of the difference between the average temperature of the workshop and the preset temperature threshold to the preset temperature threshold, and the humidity ratio of the difference between the average moisture content of the workshop and the preset humidity threshold to the preset humidity threshold; The opening of the surface cooling electric valve is controlled according to the temperature ratio, and the opening of the dehumidification electric valve, the air valve and the surface cooling electric valve is controlled according to the humidity ratio.

[0025] According to the temperature proportional control table cooling electric valve opening includes: When the temperature ratio is greater than 2%, the opening of the surface cooling electric valve is controlled to be 30%, and the opening of the surface cooling electric valve after the workshop surface cooling is positively correlated with the real-time average temperature after the workshop surface cooling; When the temperature ratio is 0, that is, the workshop temperature is equal to the preset temperature threshold, the opening of the surface cooling electric valve is 0, and the cooling surface cooler stops working. The preset temperature threshold is the temperature required by the actual workshop and can be set according to the actual application background.

[0026] Controlling the dehumidification electric valve opening, the air valve opening and the surface cooling electric valve opening according to the humidity ratio includes: When the humidity ratio is greater than 4%, the dehumidification electric valve opening is controlled to be greater than or equal to 95% and less than 100%, the air valve opening is 5%, and the surface cooling electric valve opening is 30%. The surface cooling electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified; When the humidity ratio is greater than 2% and less than 4%, the dehumidification electric valve opening is controlled to be 50%, the air valve opening is greater than or equal to 5%, and the surface cooling electric valve is closed. The dehumidification electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified, and the air valve opening after the workshop is dehumidified is negatively correlated with the real-time average moisture content after the workshop is dehumidified; When the humidity ratio is greater than 0 and less than 2%, the dehumidification electric valve opening is controlled to be 30%, the air valve opening is controlled to be 100%, and the surface cooling electric valve is closed. The dehumidification electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content of the workshop after dehumidification. When the humidity ratio is 0, that is, the workshop humidity is equal to the preset humidity threshold, the dehumidification electric valve opening is 0, and the dehumidification surface cooler stops working. The preset dehumidification threshold is the dehumidification required by the actual workshop and can be set according to the actual application background.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A temperature and humidity control system, characterized in that: include: An air intake module, a measurement module, a ratio calculation module, a temperature and humidity module, and an air supply module are connected in sequence; The measuring module is used to obtain the average temperature and the average moisture content of the workshop; The calculation module is used to calculate the temperature ratio of the difference between the average temperature of the workshop and the preset temperature threshold to the preset temperature threshold, and the humidity ratio of the difference between the average moisture content of the workshop and the preset humidity threshold to the preset humidity threshold; The temperature and humidity module is used to control the opening of the surface cooling electric valve according to the temperature ratio, and to control the opening of the dehumidification electric valve, the air valve and the surface cooling electric valve according to the humidity ratio; The temperature and humidity module includes a cooling surface cooler and a dehumidifying surface cooler arranged according to the air inlet direction, the dehumidifying surface cooler includes a dehumidifying electric valve and an air valve, and the cooling surface cooler includes a surface cooling electric valve.

2. The temperature and humidity control system according to claim 1, characterized in that: Also includes: The filter cartridge filter module arranged between the air inlet module and the measuring module is used to filter particulate matter and harmful pollutants entering from the air inlet module.

3. The temperature and humidity control system according to claim 1, characterized in that: Also includes: The dry steam heating module arranged after the temperature and humidity module is used to strengthen the control of temperature.

4. The temperature and humidity control system according to claim 3, characterized in that: Also includes: The steam humidification module arranged between the air supply module and the dry steam heating module is used to humidify the heated dry steam.

5. A temperature and humidity control method, characterized in that: include: Get the average workshop temperature and average workshop humidity; Calculate the temperature ratio of the difference between the average temperature of the workshop and the preset temperature threshold to the preset temperature threshold, and the humidity ratio of the difference between the average moisture content of the workshop and the preset humidity threshold to the preset humidity threshold; The opening of the surface cooling electric valve is controlled according to the temperature ratio, and the opening of the dehumidification electric valve, the air valve and the surface cooling electric valve is controlled according to the humidity ratio.

6. The temperature and humidity control method according to claim 1, characterized in that: According to the temperature proportional control table cooling electric valve opening includes: When the temperature ratio is greater than 2%, the opening of the surface cooling electric valve is controlled to be a, and the opening of the surface cooling electric valve after the workshop surface cooling is positively correlated with the real-time average temperature after the workshop surface cooling; When the temperature ratio is 0, the opening of the surface cooling electric valve is 0, and the cooling surface cooler stops working.

7. The temperature and humidity control method according to claim 6, characterized in that: Said a=30%.

8. The temperature and humidity control method according to claim 2, characterized in that: Controlling the dehumidification electric valve opening, the air valve opening and the surface cooling electric valve opening according to the humidity ratio includes: When the humidity ratio is greater than 4%, the dehumidification electric valve opening is controlled to be greater than or equal to 95% and less than 100%, the air valve opening is 5%, and the surface cooling electric valve opening is d. The surface cooling electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified. When the humidity ratio is greater than 2% and less than 4%, the dehumidification electric valve opening is controlled to be c, the air valve opening is greater than or equal to 5%, and the surface cooling electric valve is closed. The dehumidification electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified, and the air valve opening after the workshop is dehumidified is negatively correlated with the real-time average moisture content after the workshop is dehumidified; When the humidity ratio is greater than 0 and less than 2%, the dehumidification electric valve opening is controlled to be b, the air valve opening is 100%, and the surface cooling electric valve is closed. The dehumidification electric valve opening after the workshop is dehumidified is positively correlated with the real-time average moisture content after the workshop is dehumidified. When the humidity ratio is 0, the opening of the dehumidification electric valve is 0, and the dehumidification surface cooler stops working.

9. The temperature and humidity control method according to claim 8, characterized in that: Said b=d=30%, c=50%.

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