An adjustable air port system suitable for a cigarette factory and a control method thereof

Abstract

The application provides a kind of adjustable air port system and its control method suitable for cigarette factory, belongs to factory air port adjustment technical field.The adjustable air port system suitable for cigarette factory includes controller, actuator, temperature and humidity detection piece, air volume detection piece, adjustable air port piece.In the application, model calculation unit obtains target air volume value according to real-time temperature and humidity value, set temperature and humidity value, and obtains air port adjustment value corresponding to adjustable air port piece according to target air volume value and real-time air volume value.Feedback adjustment unit carries out feedback adjustment on air volume of adjustable air port piece through actuator according to air port adjustment value.The application can realize end precise regulation and control on air supply air volume and air direction according to temperature and humidity index requirements of indoor specific environment of cigarette factory, can make up for deviation of end regulation and control in large system ventilation, can better adapt to different ventilation systems, is easy to install, has the advantages of reducing energy consumption, reducing pollution, saving money, and is suitable for use in ventilation system of cigarette factory.

Description

Technical Field

[0001] This invention relates to the field of factory ventilation adjustment technology, specifically to an adjustable ventilation system and its control method suitable for cigarette factories. Background Technology

[0002] The tobacco production process has high requirements for environmental parameters such as temperature and humidity. Even slight differences in the environmental parameters of the cigarette factory can lead to significant differences in the quality of tobacco and the taste of cigarettes. Therefore, the precise control of the indoor environment by the air conditioning system of the cigarette factory is very important. At the same time, in order to achieve the "dual carbon" goal as soon as possible, there is still considerable room for improvement in the energy-saving optimization control of the system.

[0003] Traditional improvements to temperature and humidity control in ventilation and air conditioning systems largely focus on refining control strategies for ventilation valves, optimizing the deployment of temperature and humidity sensors, and adjusting air vent settings. However, changes in the on-site environment, job positions, and production materials can all impact the original temperature and humidity control performance. Existing control methods cannot fully adapt to these changes to achieve optimal control. This is mainly due to the low adaptability of control technology, insufficient precision of variable air volume (VAV) valves, and limited automatic adjustment at the terminal level, which fails to effectively compensate for deviations. For example, the opening angle and airflow direction of traditional terminal louvered air vents are mostly non-adjustable; a few can be manually adjusted by staff based on experience. Therefore, if the main system control malfunctions or on-site environmental parameters change, the system's effective tracking will deteriorate, ultimately leading to a decline in control performance. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing an adjustable air vent system and its control method suitable for cigarette factories.

[0005] This invention proposes an adjustable air vent system suitable for cigarette manufacturing plants, comprising a controller, an actuator, a temperature and humidity detection device, an air volume detection device, and adjustable air vents installed on the plant. The controller includes a feedback adjustment unit and a model calculation unit. The temperature and humidity detection device is used to detect the real-time temperature and humidity values ​​in the plant, and the air volume detection device is used to detect the real-time air volume value at the air outlet of the adjustable air vent. The model calculation unit is used to obtain a target air volume value based on the real-time temperature and humidity values ​​and a set temperature and humidity value, and to obtain the corresponding air vent adjustment value for the adjustable air vent based on the target air volume value and the real-time air volume value. The feedback adjustment unit adjusts the air volume of the adjustable air vent through the actuator based on the air vent adjustment value.

[0006] Furthermore, the temperature and humidity detection device is a temperature and humidity sensor.

[0007] Furthermore, the model calculation unit includes an air volume acquisition module and an adjustment acquisition module. The air volume acquisition module is used to acquire the target air volume value according to the adjustment model T=fV,Q, where T represents the set temperature and humidity value, V represents the real-time temperature and humidity value, and Q represents the target air volume value. The adjustment acquisition module is used to acquire the air volume difference Qc according to the formula Q1-Qs=Qc when acquiring the target air volume value Q1 and the real-time air volume value Qs, and to acquire the corresponding air outlet adjustment value according to the air volume difference Qc.

[0008] Furthermore, the feedback adjustment unit adjusts the airflow of the adjustable air vent component based on the air vent adjustment value and through a built-in fuzzy PID algorithm.

[0009] Furthermore, the adjustable air vent component includes a louver with adjustable opening and an air valve with adjustable air volume. The air vent adjustment value includes the opening adjustment value of the louver and the air speed adjustment value of the air valve. The adjustment acquisition module is used to acquire the first opening adjustment value corresponding to the louver and the first air speed adjustment value corresponding to the air valve according to the air volume difference Qc. The feedback adjustment unit is used to adjust the louver according to the first opening adjustment value and adjust the air valve according to the first air speed adjustment value.

[0010] Furthermore, it also includes a control panel for users to input and set temperature and humidity values.

[0011] Furthermore, the actuator includes a first transmission component for driving the louver and the damper respectively, a motor for driving the first transmission component, a host computer for being controlled by the controller, and a second transmission component for being controlled by the host computer and adjusting the speed of the motor.

[0012] Furthermore, there are multiple adjustable air vents arranged symmetrically, and the feedback adjustment unit adjusts the air volume of the multiple adjustable air vents respectively through the actuator according to the air vent adjustment value.

[0013] Furthermore, the adjustment acquisition module is used to acquire a second wind speed adjustment value corresponding to the air valve when the opening of the louver is the initial opening and the wind speed of the air valve is the initial wind speed. The feedback adjustment unit is used to control the air valve to adjust to a first wind speed according to the second wind speed adjustment value. The adjustment acquisition module is used to acquire a second opening adjustment value corresponding to the louver when the air valve is adjusted for a first preset time and the real-time air volume value is less than the target air volume value. The feedback adjustment unit is used to control the opening of the louver to adjust to a first opening according to the second opening adjustment value. The adjustment acquisition module is used to acquire a third wind speed adjustment value corresponding to the air valve when the opening of the louver is the first opening, the wind speed of the air valve is the first wind speed, and the real-time air volume value is less than the target air volume value. The feedback adjustment unit is used to control the air valve to adjust to a second wind speed according to the third wind speed adjustment value.

[0014] A control method for an adjustable air vent system suitable for cigarette factories includes the following steps:

[0015] S1: Temperature and humidity detection device detects real-time temperature and humidity values ​​in the factory; air volume detection device detects real-time air volume values ​​at the air outlet of the adjustable air outlet.

[0016] S2: The model calculation unit is used to obtain the target air volume value based on the real-time temperature and humidity value and the set temperature and humidity value, and to obtain the air outlet adjustment value corresponding to the adjustable air outlet component based on the target air volume value and the real-time air volume value.

[0017] S3: The feedback adjustment unit adjusts the air volume of the adjustable air outlet component through the actuator based on the air outlet adjustment value.

[0018] The adjustable air vent system and its control method applicable to cigarette factories of the present invention have the following beneficial effects:

[0019] The model calculation unit obtains the target air volume value based on the real-time temperature and humidity values ​​and the set temperature and humidity values, and obtains the corresponding air outlet adjustment value for the adjustable air outlet component based on the target air volume value and the real-time air volume value. The feedback adjustment unit adjusts the air volume of the adjustable air outlet component through the actuator based on the air outlet adjustment value. This application can achieve precise control of the air supply volume and air direction at the terminal according to the temperature and humidity index requirements of the specific indoor environment of the cigarette factory. It can better compensate for the deviation of the terminal control in the ventilation of large system, can be well adapted to different ventilation systems, is easy to install, and has the advantages of reducing energy consumption, reducing pollution, and saving money. It is suitable for use in the ventilation system of cigarette factory. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0021] Figure 1 This is a structural schematic diagram of an adjustable air vent system and its control method applicable to a cigarette factory, according to an embodiment of the present invention.

[0022] Figure 2 This is a flowchart illustrating the hardware control of an adjustable air vent system and its control method applicable to a cigarette factory, according to an embodiment of the present invention.

[0023] Figure 3 This is a control principle diagram of an adjustable air outlet system and its control method applicable to a cigarette factory, according to an embodiment of the present invention.

[0024] Figure 4 This is a flowchart illustrating the software control in an adjustable air vent system and its control method applicable to a cigarette factory, according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the adjustable air outlet component in an adjustable air outlet system and control method applicable to a cigarette factory according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the actuator in an adjustable air vent system and its control method applicable to a cigarette factory, according to an embodiment of the present invention.

[0027] In the diagram: 1-Control panel, 2-Controller, 3-Air supply duct, 4-Motor, 5-First transmission component, 6-Adjustable air outlet component, 7-Temperature and humidity sensor, 8-Differential pressure sensor, 9-Enclosure structure, 10-Actuator. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0029] Please see Figure 1-6 An adjustable air vent system suitable for cigarette factories according to an embodiment of the present invention includes a controller 2, an actuator 10, a temperature and humidity detection device, an air volume detection device, and an adjustable air vent 6 installed on the factory building. The controller 2 includes a feedback adjustment unit and a model calculation unit. The temperature and humidity detection device is used to detect the real-time temperature and humidity values ​​in the factory building, and the air volume detection device is used to detect the real-time air volume value at the air outlet of the adjustable air vent 6. The model calculation unit is used to obtain a target air volume value based on the real-time temperature and humidity value and a set temperature and humidity value, and to obtain the corresponding air vent adjustment value of the adjustable air vent 6 based on the target air volume value and the real-time air volume value. The feedback adjustment unit adjusts the air volume of the adjustable air vent 6 through the actuator 10 according to the air vent adjustment value.

[0030] Here, the adjustable air outlet at the end of the design in this application can achieve precise control of the air volume and direction at the end according to the temperature, humidity and pressure difference control index requirements of the specific indoor environment of the cigarette factory, which can better compensate for the deviation of the end control in the ventilation of the large system.

[0031] The temperature and humidity detection component can be a temperature and humidity sensor 7.

[0032] The model calculation unit may include an air volume acquisition module and an adjustment acquisition module. The air volume acquisition module is used to obtain the target air volume value according to the adjustment model T=fV,Q, where T represents the set temperature and humidity value, V represents the real-time temperature and humidity value, and Q represents the target air volume value. The adjustment acquisition module is used to obtain the air volume difference Qc according to the formula Q1-Qs=Qc when obtaining the target air volume value Q1 and the real-time air volume value Qs, and obtain the corresponding air outlet adjustment value according to the air volume difference Qc.

[0033] Specifically, the set temperature is 21 degrees Celsius, and the actual temperature is detected to be 25 degrees Celsius. Using the room temperature model formula: T=fV,Q, the required air volume value Q1 under the current conditions is obtained. At the same time, the actual duct air volume value Qs is detected. Q1-Qs=Qc, and Qc is sent to controller 2 to adjust the opening angle through the built-in fuzzy PID algorithm, thereby achieving the goal of adjusting the air volume and controlling the temperature.

[0034] Specifically, it also includes a differential pressure detection device, which is used to detect the real-time differential pressure change value in the plant. The model calculation unit is used to obtain the target air volume value based on the real-time temperature and humidity value, the set temperature and humidity value, the real-time differential pressure change value, and the set differential pressure change value, and to obtain the corresponding air outlet adjustment value of the adjustable air outlet 6 based on the target air volume value and the real-time air volume value. The feedback adjustment unit adjusts the air volume of the adjustable air outlet 6 through the actuator 10 based on the air outlet adjustment value. The differential pressure detection device is a differential pressure sensor 8. The model calculation unit may include an air volume acquisition module and an adjustment acquisition module. The air volume acquisition module is used to obtain the target air volume value according to the adjustment model T=fV,Q, where T represents the set temperature and humidity value and the set differential pressure change value, V represents the real-time temperature and humidity value and the real-time differential pressure change value, and Q represents the target air volume value. The adjustment acquisition module is used to obtain the air volume difference Qc according to the formula Q1-Qs=Qc when obtaining the target air volume value Q1 and the real-time air volume value Qs, and to obtain the corresponding air outlet adjustment value based on the air volume difference Qc.

[0035] The feedback adjustment unit can adjust the air volume of the adjustable air outlet 6 according to the air outlet adjustment value and through the built-in fuzzy PID algorithm.

[0036] The adjustable air vent 6 may include a louver with adjustable opening and an air valve with adjustable air volume. The air vent adjustment value includes the opening adjustment value of the louver and the air speed adjustment value of the air valve. The adjustment acquisition module is used to acquire the first opening adjustment value corresponding to the louver and the first air speed adjustment value corresponding to the air valve according to the air volume difference Qc. The feedback adjustment unit is used to adjust the louver according to the first opening adjustment value and adjust the air valve according to the first air speed adjustment value.

[0037] As an example of an adjustable air vent system suitable for cigarette factories in this embodiment, it may also include a control panel 1 for users to input and set temperature and humidity values.

[0038] The actuator 10 may include a first transmission member 5 for driving the louver and the damper respectively, a motor 4 for driving the first transmission member 5, a host computer for being controlled by the controller 2, and a second transmission member for being controlled by the host computer and adjusting the speed of the motor 4.

[0039] The adjustable air vent 6 can be multiple symmetrically arranged. The feedback adjustment unit adjusts the air volume of the multiple adjustable air vent 6 according to the air vent adjustment value through the actuator 10.

[0040] For details, see Figure 1 , 2 As shown in Figures 5 and 6, motor 4 is a stepper motor 4 that can control the airflow volume, and the louvers can be double-layer louver devices that guide the airflow direction. Motor 4 drives the first transmission component 5, which in turn drives the opening and closing angle of the air vents of the double-layer louver device to control the airflow volume and direction. Temperature and humidity sensor 7 and differential pressure sensor 8 are set in the optimal test area of ​​the factory control according to the actual situation. Controller 2 is set on one side of adjustable air vent 6 and can communicate with the host computer and control panel 1 in real time. Control panel 1 is set on one side of actuator 10 in an easily accessible position, receiving control commands from on-site personnel and transmitting the control commands to controller 2. Stepper motor 4, temperature and humidity sensor 7, differential pressure sensor 8, and control panel 1 are all electrically connected to controller 2. Enclosure structure 9 is set inside the factory, and adjustable air vent 6 is set on the side of enclosure structure 9. One end of air supply duct 3 is connected to the outside of the louvers.

[0041] The adjustment acquisition module can be used to acquire the second wind speed adjustment value corresponding to the air valve when the opening of the louver is the initial opening and the wind speed of the air valve is the initial wind speed. The feedback adjustment unit is used to control the air valve to adjust to the first wind speed according to the second wind speed adjustment value. The adjustment acquisition module can be used to acquire the second opening adjustment value corresponding to the louver when the air valve is adjusted for a first preset time and the real-time air volume value is less than the target air volume value. The feedback adjustment unit is used to control the opening of the louver to adjust to the first opening according to the second opening adjustment value. The adjustment acquisition module can be used to acquire the third wind speed adjustment value corresponding to the air valve when the opening of the louver is the first opening, the air volume of the air valve is the first wind speed and the real-time air volume value is less than the target air volume value. The feedback adjustment unit is used to control the air valve to adjust to the second wind speed according to the third wind speed adjustment value.

[0042] Specifically, when the temperature controlled by the regulating valve fails to reach the target range for an extended period, i.e., while maintaining the louver opening unchanged, the airflow velocity of the damper is first adjusted. If, after adjustment for a period, the real-time airflow value still fails to reach the target airflow value, the louver's airflow direction angle is adjusted, and the second louver opening adjustment value is obtained. The initial opening of the louver is then adjusted to the first opening. The first airflow velocity of the damper is then obtained again, and the damper is adjusted accordingly. The louver adjustment has two modes: 1. Fixed airflow direction mode: In this mode, the range is first determined based on the local ventilation location, and then automatically optimized using a PID algorithm. 2. Circulating airflow direction mode: This is manually determined by on-site personnel.

[0043] Specifically, this application has the following advantages:

[0044] 1. Adjustable automatic control air vents can be designed and equipped with a motor 4-speed transmission device and traditional mechanical device to achieve electrical automatic control based on the existing transmission device. Most other hardware devices are modified based on the existing ventilation system. The whole system can be mass-produced in the factory, with high production efficiency and guaranteed quality.

[0045] 2. The hardware part of the system construction and installation mainly focuses on the communication wiring of the control system and the installation of adjustable air vents. The software is implemented by importing the application program into the controller 2 through the host computer. The overall process is simple and easy to operate.

[0046] 3. The air outlet can automatically adjust the louver opening angle according to changes in ambient temperature, humidity or pressure difference. In conjunction with the action of the air valve, it can more effectively control the air volume and air direction.

[0047] 4. Design a feedback control algorithm to precisely regulate the air volume and direction of the terminal air outlets, which can effectively enhance the control effect of temperature, humidity or pressure difference in the plant and save energy.

[0048] 5. It can realize the linkage control of multiple air outlets, and can be flexibly matched according to the needs of the factory, with strong scalability.

[0049] In summary, this application is well-suited for different ventilation systems, easy to install, and has the advantages of reducing energy consumption, pollution, and costs. It is particularly suitable for use in the ventilation systems of cigarette factories and is a terminal ventilation control device and method worthy of promotion and application.

[0050] See Figure 3 As shown, closed-loop control is achieved based on temperature, humidity, and pressure difference requirements.

[0051] 1 This application provides that the temperature and humidity sensor 7 and the differential pressure sensor 8 collect data in real time and transmit it to the controller 2. The controller 2 compares the data with the target value input in the control panel 1, determines the current optimal control strategy, and then outputs a control signal to the motor 4 to adjust the speed of the motor 4.

[0052] During execution, controller 2 continues to receive feedback data from temperature, humidity and differential pressure sensors 8. Based on the deviation between the target value and the actual value, it continuously adjusts the opening angle and air direction of the air vent louvers to achieve the environmental control target value.

[0053] See Figure 4 As shown in Figure 1, this application provides that the temperature and humidity sensor 7 and the differential pressure sensor 8 collect data in real time and transmit it to the controller 2. After analyzing the data, the controller 2 obtains the optimal strategy under the requirement through an algorithm and sends a control signal to the motor 4 to achieve the optimal air volume and wind direction angle of the air outlet.

[0054] 2. The control method includes the following steps:

[0055] A1. — Power on, the air outlet will start automatically, and after completing the self-test, it will enter standby mode;

[0056] A2 — Manually input custom control commands through the control panel 1, so that the adjustable air vent 6 can perform the corresponding adjustment mode according to the current temperature and humidity conditions;

[0057] A3 — Manually input the optimal control command through the control panel 1 so that the damper and louvers can perform the optimal adjustment mode according to the current environmental conditions;

[0058] A4 — Controller 2 can receive demand information from other modules or air outlets, and realize linkage control with other modules or air outlets.

[0059] Step A1 specifically includes: the motor 4 status and louver opening angle are in the preset state, the control panel 1 enters the input waiting mode, the temperature and humidity sensor 7 and the differential pressure sensor 8 monitor the current environmental information, the controller 2 collects the input information of each module in real time, receives the control request and performs control, and detects the sensor feedback information in real time, comprehensively evaluates whether the control is completed, and enters the standby state when the control is completed, that is, maintains the air volume or air direction of the air outlet stable. If the control is not completed, the control continues to cycle until the control is completed. If no control request is received, the standby state continues.

[0060] Step A2 specifically includes: First, the controller 2 receives the control mode command from the control panel 1. The controller 2 collects data from the motor 4 driver, the temperature and humidity sensor 7, and the differential pressure sensor 8 to confirm the status of the louvers, the current wind direction, and the air volume. The controller 2 makes a decision and outputs control quantities to the transmission device to realize the wind direction and air volume in accordance with the target requirements, and detects the position information in real time. If the position is reached, the output stops.

[0061] Step A3 specifically includes: the controller 2 receives demand information from other modules or air vents, makes a decision, inputs the decision information to the transmission device for execution, and monitors the air vent position information of the temperature and humidity sensor 7, differential pressure sensor 8, and louvers in real time to assist in execution; it can also directly hand over control authority to external demand modules so that they can control directly.

[0062] See Figure 5 , 6 As shown, the second transmission component receives the electrical pulse signal from the controller 2, drives the motor 4 to rotate to the corresponding speed, and then transmits it to the mechanical action device of the double-layer louvered air outlet through the reducer, so as to finally realize the adjustment of the opening angle of the louvered air outlet.

[0063] A control method for an adjustable air vent system suitable for cigarette factories includes the following steps:

[0064] S1: Temperature and humidity detection device detects the real-time temperature and humidity values ​​in the factory, and air volume detection device detects the real-time air volume value at the air outlet of adjustable air outlet 6.

[0065] S2: The model calculation unit is used to obtain the target air volume value based on the real-time temperature and humidity value and the set temperature and humidity value, and to obtain the air outlet adjustment value corresponding to the adjustable air outlet component 6 based on the target air volume value and the real-time air volume value.

[0066] S3: The feedback adjustment unit adjusts the air volume of the adjustable air outlet component 6 through the actuator 10 according to the air outlet adjustment value.

[0067] The above-described contents can be implemented individually or in various combinations, and these variations are all within the protection scope of this invention.

[0068] It should be noted that in the description of this application, the terms "upper end," "lower end," and "bottom end," indicating orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise limited, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable air vent system suitable for cigarette factory buildings, characterized in that: The system includes a controller (2), an actuator (10), a temperature and humidity sensor, an airflow sensor, and an adjustable air outlet (6) installed on the factory building. The controller (2) includes a feedback adjustment unit and a model calculation unit. The temperature and humidity sensor is used to detect the real-time temperature and humidity values ​​in the factory building. The airflow sensor is used to detect the real-time airflow value at the air outlet of the adjustable air outlet (6). The model calculation unit is used to obtain the target airflow value based on the real-time temperature and humidity values ​​and the set temperature and humidity values, and to calculate the target airflow value based on the actual airflow value. The adjustable air outlet component (6) is obtained by acquiring the air volume value. The feedback adjustment unit adjusts the air volume of the adjustable air outlet component (6) through the actuator (10) according to the air volume adjustment value. The model calculation unit includes an air volume acquisition module and an adjustment acquisition module. The adjustable air outlet component (6) includes a louver with adjustable opening and an air valve with adjustable air volume. The air outlet adjustment value includes the opening adjustment value of the louver and the air speed adjustment value of the air valve. The adjustment acquisition module is used to adjust the air volume based on the air volume difference Qc. The system acquires a first opening adjustment value for the louver and a first wind speed adjustment value for the damper. The feedback adjustment unit adjusts the louver according to the first opening adjustment value and the damper according to the first wind speed adjustment value. The adjustment acquisition module acquires a second wind speed adjustment value for the damper when the louver opening is at its initial opening and the damper wind speed is at its initial wind speed. The feedback adjustment unit controls the damper to adjust to the first wind speed according to the second wind speed adjustment value. The adjustment acquisition module acquires a second opening adjustment value for the louver when the damper is adjusted for a first preset time and the real-time airflow value is less than the target airflow value. The feedback adjustment unit controls the louver opening to adjust to the first opening according to the second opening adjustment value. The adjustment acquisition module acquires a third wind speed adjustment value for the damper when the louver opening is at its first opening, the damper wind speed is at its first wind speed, and the real-time airflow value is less than the target airflow value. The feedback adjustment unit controls the damper to adjust to the second wind speed according to the third wind speed adjustment value.

2. The adjustable air vent system suitable for cigarette factory buildings as described in claim 1, characterized in that: The temperature and humidity detection device is a temperature and humidity sensor (7).

3. An adjustable air vent system suitable for cigarette factory buildings as described in claim 1 or 2, characterized in that: The air volume acquisition module is used to obtain the target air volume value according to the adjustment model T=f(V,Q), where T represents the set temperature and humidity value, V represents the real-time temperature and humidity value, and Q represents the target air volume value. The adjustment acquisition module is used to obtain the air volume difference Qc according to the formula Q1-Qs=Qc when obtaining the target air volume value Q1 and the real-time air volume value Qs, and obtain the corresponding air outlet adjustment value according to the air volume difference Qc.

4. An adjustable air vent system suitable for cigarette factory buildings as described in claim 1 or 2, characterized in that: The feedback adjustment unit adjusts the airflow of the adjustable air outlet component (6) according to the air outlet adjustment value and through the built-in fuzzy PID algorithm.

5. An adjustable air vent system suitable for cigarette factory buildings as described in claim 1 or 2, characterized in that: It also includes a control panel (1) for users to input and set temperature and humidity values.

6. The adjustable air vent system suitable for cigarette factory buildings as described in claim 5, characterized in that: The actuator (10) includes a first transmission component (5) for driving the louver and the air valve respectively, a motor (4) for driving the first transmission component (5), a host computer for being controlled by the controller (2), and a second transmission component for being controlled by the host computer and adjusting the speed of the motor (4).

7. An adjustable air vent system suitable for cigarette factory buildings as described in claim 1 or 2, characterized in that: The adjustable air vents (6) are arranged symmetrically in multiple units. The feedback adjustment unit adjusts the air volume of the multiple adjustable air vents (6) according to the air vent adjustment value through the actuator (10).

8. A control method for an adjustable air vent system suitable for a cigarette factory, as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1: Temperature and humidity detector detects the real-time temperature and humidity values ​​in the factory, and air volume detector detects the real-time air volume value at the air outlet of the adjustable air outlet (6). S2: The model calculation unit is used to obtain the target air volume value based on the real-time temperature and humidity value and the set temperature and humidity value, and to obtain the air outlet adjustment value corresponding to the adjustable air outlet component (6) based on the target air volume value and the real-time air volume value. S3: The feedback adjustment unit adjusts the air volume of the adjustable air outlet component (6) through the actuator (10) according to the air outlet adjustment value.

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