Ventilation design system applied to factory building

Abstract

The ventilation design system is characterized in that the ventilation design system comprises an intelligent sensor module, an efficient ventilation device, an air purification module and an intelligent control center; the intelligent sensor modules are distributed in a ventilation area in a plant and used for monitoring temperature, humidity and air quality parameters in real time. The efficient air interchanger is arranged on the top and the side wall of a plant and is designed in a streamline mode. The air purification module is arranged in the air interchanger and is used for filtering dust and harmful gas in the air; the intelligent control center automatically adjusts the operation state of the ventilation device according to data of the sensor. According to the ventilation design system applied to the factory building, streamline design and a modular combination mode are adopted, airflow organization is optimized, ventilation dead angles are eliminated, the ventilation efficiency is improved, ventilation requirements are predicted through an intelligent control algorithm and big data analysis, and unnecessary energy consumption is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation and air change in factories, and particularly to a ventilation and air change design system applied to factories. Background Art

[0002] With the continuous development of industrial production, higher requirements are put forward for the ventilation and air change system in factories. Traditional ventilation systems have problems such as low ventilation efficiency, high energy consumption, and single function, and are difficult to meet the diverse needs of modern industrial factories. For example, although the traditional skylight ventilation system can achieve natural ventilation, it lacks intelligent control and cannot automatically adjust the ventilation volume according to environmental changes; although the mechanical ventilation system has a large ventilation volume, it has high energy consumption and serious noise pollution.

[0003] Chinese Patent Application No. CN201711425588.5 discloses an environmental protection ventilation and air change system with a filter element for factories. The environmental protection ventilation and air change system includes: a window controller connected to the windows of the factory for controlling the windows; a filter element for filtering the air in the factory; and a processor connected to both the window controller and the filter element, configured to control the windows to open for ventilation when the harmful gas content in the air in the factory is greater than a first preset concentration and less than a second preset concentration; filter the air in the factory through the filter element when the harmful gas is greater than or equal to the second preset concentration; and / or the processor is configured to filter the air in the factory through the filter element when the dust concentration in the air in the factory is greater than a preset dust concentration. This environmental protection ventilation and air change system can effectively remove harmful gases and dust particles in the factory and provide a healthy and clean working environment for workers.

[0004] However, the existing ventilation and air change systems still have some defects, such as poor ventilation effect, easy generation of ventilation dead corners, unsatisfactory removal of dust and harmful gases in the air, and harm to the health of workers. Summary of the Invention

[0005] Aiming at the above deficiencies in the prior art, the present invention provides a ventilation and air change design system applied to factories, aiming to solve problems such as poor ventilation effect, easy generation of ventilation dead corners, unsatisfactory removal of dust and harmful gases in the air, and harm to the health of workers.

[0006] To achieve the above invention purpose, the technical solution adopted by the present invention is: a ventilation and air change design system applied to factories, including an intelligent sensor module, an efficient ventilation and air change device, an air purification module, and an intelligent control center;

[0007] The intelligent sensor module is distributed in the ventilation areas in the factory for real-time monitoring of temperature, humidity, and air quality parameters;

[0008] The high-efficiency ventilation device is installed on the top and side walls of the factory building and adopts a streamlined design;

[0009] The air purification module is built inside the ventilation device and is used to filter dust and harmful gases in the air;

[0010] The intelligent control center automatically adjusts the operating state of the ventilation device according to the sensor data.

[0011] Furthermore, the intelligent sensor module includes a temperature and humidity sensor (model: SHT35-DIS), which is installed 0.5 meters below the ceiling in each area of the factory building. It uses a high-precision digital temperature and humidity probe, with a measurement range of -40°C to +125°C, 0%RH to 100%RH, and an accuracy of ±0.3°C, ±2%RH; a PM2.5 sensor (model: PMS7003), which is installed in crowded areas and ventilation dead corners in the factory building. It uses the laser scattering method to detect the concentration of suspended particulate matter in the air, with a measurement range of 0 - 1000 μg / m 3 , and a resolution of 1 μg / m 3 ; a harmful gas sensor (model: MQ-135), which is installed near the equipment in the factory building that may generate volatile organic compounds (VOCs). It can detect harmful gases such as formaldehyde, benzene, and ammonia, with a sensitivity range of 0.1 - 10 ppm. The installation position of the sensor needs to avoid direct sunlight, heat sources, and ventilation openings to ensure a stable measurement environment; the distance between the temperature and humidity sensor and the PM2.5 sensor is ≥3 meters to avoid airflow interference, and the sensor data is sent to the intelligent control center in real time through a wireless transmission method.

[0012] Furthermore, the high-efficiency ventilation device uses a standardized module unit with an aluminum alloy profile frame + polycarbonate panel. Each module is horizontally spliced through a quick-install snap structure, and the weight of a single module is ≤15 kg, supporting the following layout methods

[0013] Slope horizontal layout: Continuously spliced along the slope direction of the factory building roof, suitable for single-slope or double-slope roof factory buildings;

[0014] Ridge longitudinal layout: Vertically spliced along the ridge line to form a longitudinal ventilation corridor, suitable for logistics warehouses with a span ≥24 meters;

[0015] Hybrid layout: Combining the downslope and ridge layouts to eliminate ventilation dead corners at the four corners of the factory building and in areas with dense equipment.

[0016] Furthermore, the air purification module adopts a five-stage composite filtration structure (from the air inlet end to the air outlet end in sequence):

[0017] The first stage: primary filter

[0018] Material: Galvanized steel plate frame + non-woven fabric filter material (gram weight 200 g / m2 );

[0019] Aperture: 1 - 5 mm, interception efficiency ≥ 85% (for particulate matter with a diameter ≥ 5 μm, such as hair and fiber);

[0020] Reverse blow self - cleaning function: Automatically start pulse reverse blow every 8 hours of operation, extending the service life to 6 months;

[0021] The second stage: Medium - efficiency filter

[0022] Material: Aluminum alloy frame + synthetic fiber filter material (density 300 g / m 2 );

[0023] Aperture: 0.5 - 1 mm, interception efficiency ≥ 95% (for particulate matter with a diameter ≥ 1 μm, such as pollen and smoke);

[0024] The third stage: Activated carbon filter layer

[0025] Material: Honeycomb - shaped activated carbon (iodine value ≥ 1000 mg / g, specific surface area ≥ 1000 m 2 / g);

[0026] Thickness: 50 mm, adsorption efficiency ≥ 90% (for volatile organic compounds such as formaldehyde, benzene, and TVOC, initial concentration ≤ 2 mg / m 3 );

[0027] Regeneration design: Supports thermal desorption regeneration (temperature 120 - 150 °C, cycle times ≥ 5 times).

[0028] The fourth stage: HEPA high - efficiency filter

[0029] Material: Glass fiber filter paper (thickness 10 mm, number of pleats ≥ 100);

[0030] Filtration grade: H13 (EN1822 standard), filtration efficiency for 0.3 - μm particulate matter ≥ 99.97%;

[0031] Sealing structure: Adopt polyurethane sealant to caulk to prevent air leakage.

[0032] The fifth stage: Negative ion generation layer

[0033] Material: Carbon fiber discharge needle array (discharge spacing 5 mm, voltage 8 kV);

[0034] Negative ion release amount: ≥ 5×10 6 pcs / cm 3 , effectively settling fine particulate matter and improving air freshness.

[0035] Furthermore, the intelligent control center integrates a three - layer big data analysis architecture:

[0036] Data acquisition layer:

[0037] Real-time receive monitoring data from temperature and humidity sensors (accuracy ±0.3°C / ±2%RH), PM2.5 sensors (range 0 - 1000 μg / m 3 ), harmful gas sensors (sensitivity 0.1 - 10 ppm), and air flow meters (accuracy ±1.5%); store historical environmental data (≥1 year), with a timestamp resolution ≤1 minute, supporting data cleaning and outlier removal;

[0038] Algorithm processing layer:

[0039] Use LSTM long short-term memory neural network (number of hidden layer nodes 64, number of training rounds ≥1000 rounds) to perform time series modeling on historical data and predict the ventilation demand for the next 12 hours; combine real-time environmental parameters (such as outdoor temperature and humidity, indoor personnel density) to dynamically adjust the prediction weight through a fuzzy logic control algorithm (membership function using Gaussian type);

[0040] Decision execution layer:

[0041] Generate a hierarchical control strategy according to the prediction results:

[0042] Low demand mode: wind speed ≤3 m / s, running time ≤4 hours / day;

[0043] Medium demand mode: wind speed 3 - 6 m / s, running time 4 - 8 hours / day;

[0044] High demand mode: wind speed ≥6 m / s, running time ≥8 hours / day.

[0045] Furthermore, the high-efficiency ventilation device is equipped with adjustable air deflectors, which optimize the air flow organization by changing the angle of the air deflectors, improve the ventilation efficiency, and adapt to different industrial environments.

[0046] Furthermore, the system has a remote monitoring function, and users can view the system operation status in real time through a mobile phone APP or computer software, receive fault alarm information, and perform remote parameter adjustment.

[0047] Furthermore, the high-efficiency ventilation device integrates a daylighting function, uses FRP daylighting panels with high light transmittance to meet the natural daylighting requirements of the factory building, and the surface of the daylighting panel is coated with an anti-ultraviolet coating to extend the service life.

[0048] Furthermore, the system is equipped with a rain protection component, which automatically closes the air inlet in a rainstorm environment to prevent rainwater from invading. The rain protection component adopts a butterfly opening and closing design to ensure the sealing performance.

[0049] The beneficial effects of the present invention are:

[0050] A ventilation and air change design system applied to a factory building of the present invention improves ventilation efficiency: adopts a streamlined design and a modular combination method, optimizes the air flow organization, eliminates ventilation dead corners, and improves ventilation efficiency; reduces energy consumption: predicts ventilation requirements through intelligent control algorithms and big data analysis, avoids unnecessary energy consumption; adopts lightweight materials and a streamlined design to reduce energy consumption during operation; improves air quality: integrates an air purification module to effectively remove dust and harmful gases in the air, ensuring the health of workers and the safe operation of production equipment; improves management efficiency: has remote monitoring and fault alarm functions, improving management efficiency; has a self-learning function and can automatically optimize control strategies according to the actual use situation of the factory building and environmental changes; enhances system adaptability: the modular combination design and multi-functional integration enable the system to flexibly adapt to different building forms and working conditions requirements, enhancing the adaptability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a schematic diagram of the architecture of a ventilation and air change design system applied to a factory building of the present invention;

[0052] Figure 2 is a composition diagram of the intelligent sensor module of a ventilation and air change design system applied to a factory building of the present invention;

[0053] Figure 3 is a composition diagram of the air purification module of a ventilation and air change design system applied to a factory building of the present invention.

[0054] The figure is a composition diagram of the intelligent control center of a ventilation and air change design system applied to a factory building of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] The following will further illustrate the detailed embodiments of the present invention with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals.

[0056] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0057] In order to make the content of the present invention easier to be clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0058] As Figures 1 to 3 shown, a ventilation and air change design system applied to a factory building includes an intelligent sensor module, an efficient air change device, an air purification module and an intelligent control center;

[0059] Intelligent sensor modules are distributed in the ventilation areas of the factory building for real-time monitoring of temperature, humidity, and air quality parameters;

[0060] High-efficiency ventilation devices are installed on the top and side walls of the factory building and adopt a streamlined design;

[0061] The air purification module is built inside the ventilation device to filter dust and harmful gases in the air;

[0062] The intelligent control center automatically adjusts the operating state of the ventilation device according to the sensor data.

[0063] The intelligent sensor module includes a temperature and humidity sensor (model: SHT35-DIS), installed 0.5 meters below the ceiling in each area of the factory building. It uses a high-precision digital temperature and humidity probe with a measurement range of -40°C to +125°C, 0%RH to 100%RH, and an accuracy of ±0.3°C, ±2%RH; a PM2.5 sensor (model: PMS7003), installed in crowded areas and ventilation dead ends in the factory building. It uses the laser scattering method to detect the concentration of suspended particulate matter in the air, with a range of 0 - 1000 μg / m 3 , and a resolution of 1 μg / m 3 ; a harmful gas sensor (model: MQ-135), installed near equipment in the factory building that may generate volatile organic compounds (VOCs). It can detect harmful gases such as formaldehyde, benzene, and ammonia, with a sensitivity range of 0.1 - 10 ppm. The installation position of the sensor should avoid direct sunlight, heat sources, and ventilation openings to ensure a stable measurement environment; the distance between the temperature and humidity sensor and the PM2.5 sensor is ≥3 meters to avoid airflow interference. The sensor data is sent to the intelligent control center in real time through a wireless transmission method.

[0064] The installation position of the sensor should avoid direct sunlight, heat sources, and ventilation openings to ensure a stable measurement environment; the temperature and humidity sensor is installed 0.5 meters below the ceiling in each area of the factory building, the PM2.5 sensor is installed in crowded areas and ventilation dead ends in the factory building, and the harmful gas sensor is installed near equipment in the factory building that may generate volatile organic compounds (VOCs); the distance between the temperature and humidity sensor and the PM2.5 sensor is ≥3 meters to avoid airflow interference.

[0065] The sensor sends real-time data to the intelligent control center through a wireless transmission method. The wireless transmission uses LoRa technology, which has the advantages of low power consumption, long distance, and high stability, ensuring the reliability and real-time nature of data transmission.

[0066] The high-efficiency ventilation device adopts a standardized module unit with an aluminum alloy profile frame + polycarbonate panel. Each module is horizontally spliced through a quick-install buckle structure, and the weight of a single module is ≤15 kg, supporting the following layout methods

[0067] Slope horizontal layout: Continuously spliced along the slope direction of the factory building roof, applicable to single-slope or double-slope roof factories;

[0068] Ridge longitudinal layout: Vertically spliced along the ridge line to form a longitudinal ventilation corridor, applicable to logistics warehouses with a span ≥ 24 meters;

[0069] Hybrid layout: Combining the downslope and ridge layouts to eliminate ventilation dead corners at the four corners of the factory building and areas with dense equipment.

[0070] The high-efficiency air change device is equipped with adjustable air guide plates. By changing the angle of the air guide plates, the air flow organization is optimized to improve the ventilation efficiency. The air guide plates are made of 304 stainless steel, with an adjustable angle range of 0° - 45°. Equipped with a servo motor drive, it can automatically adjust the angle according to the instructions of the intelligent control center. The system is equipped with a rain-proof component, which automatically closes the air inlet in a rainstorm environment to prevent rainwater from invading. The rain-proof component adopts a butterfly opening and closing design to ensure the sealing performance. The rain-proof component is configured with a rain sensor. When the rainfall > 50mm / h, the response time for the butterfly valve to close < 3 seconds.

[0071] The air purification module adopts a five-stage composite filtration structure (from the air inlet end to the air outlet end in sequence):

[0072] The first stage: Primary filter

[0073] Material: Galvanized steel frame + non-woven filter material (gram weight 200g / m 2 );

[0074] Aperture: 1 - 5mm, interception efficiency ≥ 85% (for particles with a diameter ≥ 5μm, such as hair, fibers);

[0075] Reverse blow self-cleaning function: Automatically starts pulse reverse blow every 8 hours of operation, extending the service life to 6 months;

[0076] The second stage: Intermediate filter

[0077] Material: Aluminum alloy frame + synthetic fiber filter material (density 300g / m 2 );

[0078] Aperture: 0.5 - 1mm, interception efficiency ≥ 95% (for particles with a diameter ≥ 1μm, such as pollen, smoke);

[0079] The third stage: Activated carbon filter layer

[0080] Material: Honeycomb activated carbon (iodine value ≥ 1000mg / g, specific surface area ≥ 1000m 2 / g);

[0081] Thickness: 50mm, adsorption efficiency ≥ 90% (for volatile organic compounds such as formaldehyde, benzene, TVOC, initial concentration ≤ 2mg / m3 When);

[0082] Regeneration design: Support thermal desorption regeneration (temperature 120 - 150 °C, number of cycles ≥ 5 times).

[0083] Fourth stage: HEPA high - efficiency filter

[0084] Material: Glass fiber filter paper (thickness 10 mm, number of pleats ≥ 100);

[0085] Filtration grade: H13 level (EN1822 standard), filtration efficiency for 0.3 μm particles ≥ 99.97%;

[0086] Sealing structure: Use polyurethane sealant for caulking to prevent air leakage.

[0087] Fifth stage: Negative ion generation layer

[0088] Material: Carbon fiber discharge needle array (discharge spacing 5 mm, voltage 8 kV);

[0089] Negative ion release amount: ≥ 5×10 6 pcs / cm 3 , effectively sedimenting fine particles and improving air freshness.

[0090] The filters at all levels work together to achieve efficient filtration of dust and harmful gases in the air. The primary filter is pulsed back - blown 3 times a week (air source pressure 0.6 MPa), the medium - efficiency filter is replaced when the pressure difference reaches 250 Pa, the activated carbon layer adopts the thermal desorption regeneration process, the HEPA filter is equipped with a differential pressure sensor (range 0 - 1000 Pa), and when the differential pressure > 600 Pa, a replacement warning is triggered. The negative ion generator is equipped with an ozone concentration monitoring module (threshold 0.1 ppm), and when it exceeds the standard, it automatically reduces the power operation.

[0091] The intelligent control center integrates a three - layer big data analysis architecture:

[0092] Data acquisition layer:

[0093] Real - time receive monitoring data from temperature and humidity sensors (accuracy ±0.3 °C / ±2% RH), PM2.5 sensors (range 0 - 1000 μg / m 3 ), harmful gas sensors (sensitivity 0.1 - 10 ppm) and air flow meters (accuracy ±1.5%); Store historical environmental data (≥ 1 year), time - stamp resolution ≤ 1 minute, support data cleaning and outlier rejection;

[0094] Algorithm processing layer:

[0095] Use an LSTM long short-term memory neural network (with 64 hidden layer nodes and ≥1000 training rounds) to perform time series modeling on historical data and predict the ventilation demand for the next 12 hours; combine real-time environmental parameters (such as outdoor temperature and humidity, indoor personnel density) and dynamically adjust the prediction weights through a fuzzy logic control algorithm (with a Gaussian membership function).

[0096] Decision execution layer:

[0097] Generate a hierarchical control strategy based on the prediction results:

[0098] Low demand mode: wind speed ≤ 3m / s, running time ≤ 4 hours / day;

[0099] Medium demand mode: wind speed 3 - 6m / s, running time 4 - 8 hours / day;

[0100] High demand mode: wind speed ≥ 6m / s, running time ≥ 8 hours / day.

[0101] The actuator is configured with a PWM speed control fan (power range 0.5 - 5kW), and the air deflector angle control accuracy is ±1°. The fan and the air deflector automatically adjust their operating states according to the instructions of the intelligent control center to achieve dynamic regulation of the air quality in the factory building.

[0102] The high-efficiency ventilation device is equipped with an adjustable air deflector to optimize the air flow organization by changing the air deflector angle, improve the ventilation efficiency, and adapt to different industrial environments.

[0103] The system has a remote monitoring function. Users can view the system operation status in real time through the mobile phone APP or computer software, receive fault alarm information, and perform remote parameter adjustment.

[0104] Remote monitoring uses the MQTT protocol for transmission, configures two-factor authentication, and supports historical data retrieval (time span 1 minute).

[0105] The high-efficiency ventilation device integrates a lighting function, uses an FRP lighting board with high light transmittance to meet the natural lighting needs of the factory building, and the surface of the lighting board is coated with an anti-ultraviolet coating to extend its service life.

[0106] The lighting board automatically adjusts the opening and closing angle (0° - 90°) through a photoelectric sensor to achieve dynamic regulation of the light intensity in the factory building.

[0107] The system is equipped with a rain protection component that automatically closes the air inlet in a rainstorm environment to prevent rainwater from entering. The rain protection component adopts a butterfly opening and closing design to ensure the sealing performance.

[0108] The rain protection component adopts a butterfly opening and closing design to ensure the sealing performance. The rain protection component is configured with a rain sensor. When the rainfall > 50mm / h, the response time for the butterfly valve to close < 3 seconds.

[0109] The above are only the preferred embodiments of the present invention patent and are not intended to limit the present invention patent. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention patent shall be included within the protection scope of the present invention patent.

Claims

1. A ventilation design system for a factory building, characterized in that: It includes intelligent sensor module, efficient ventilation device, air purification module and intelligent control center; The smart sensor modules are distributed in the ventilation area of ​​the plant and are used to monitor temperature, humidity and air quality parameters in real time; The high-efficiency ventilation device is installed on the top and side walls of the plant and adopts a streamlined design; The air purification module is built into the ventilation device and is used to filter dust and harmful gases in the air; The intelligent control center automatically adjusts the operating state of the ventilation device according to the sensor data.

2. The ventilation design system for factory buildings according to claim 1, characterized in that: The intelligent sensor module includes a temperature and humidity sensor (model: SHT35-DIS), which is installed 0.5 meters below the ceiling of each area in the factory. It uses a high-precision digital temperature and humidity probe with a measurement range of -40°C to +125°C, 0%RH to 100%RH, and an accuracy of ±0.3°C and ±2%RH; a PM2.5 sensor (model: PMS7003), which is installed in densely populated areas and ventilation dead corners in the factory. It uses a laser scattering method to detect the concentration of suspended particulate matter in the air, with a range of 0-1000μg / m 3 , resolution 1μg / m 3 ; Harmful gas sensor (model: MQ-135) is installed near equipment in the factory that may produce volatile organic compounds (VOCs). It can detect harmful gases such as formaldehyde, benzene, and ammonia. The sensitivity range is 0.1-10ppm. The sensor installation location must avoid direct sunlight, heat sources and vents to ensure a stable measurement environment; the distance between the temperature and humidity sensor and the PM2.5 sensor is ≥3 meters to avoid airflow interference. The sensor data is sent to the intelligent control center in real time via wireless transmission.

3. The ventilation design system for factory buildings according to claim 1, characterized in that: The high-efficiency ventilation device adopts a standardized module unit with an aluminum alloy profile frame + polycarbonate panel. Each module is horizontally spliced ​​through a quick-install buckle structure. The weight of a single module is ≤15kg. The following layout methods are supported: Slope horizontal layout: continuous splicing along the slope direction of the factory roof, suitable for single-slope or double-slope roof factories; Longitudinal layout of the roof ridge: vertical splicing along the ridge line to form a longitudinal ventilation corridor, suitable for logistics warehouses with a span of ≥24 meters; Mixed layout: Combining slope layout and ridge layout to eliminate ventilation dead spots in the four corners of the factory building and equipment-intensive areas.

4. The ventilation design system for factory buildings according to claim 1, characterized in that: The air purification module adopts a five-stage composite filtration structure (from the air inlet to the air outlet): First stage: primary filter Material: galvanized steel frame + non-woven filter material (weight 200g / m 2 ); Aperture: 1-5mm, interception efficiency ≥85% (for particles with a diameter ≥5μm, such as hair and fiber); Backflush self-cleaning function: pulse backflush is automatically started every 8 hours of operation, extending the service life to 6 months; Second stage: medium efficiency filter Material: Aluminum alloy frame + synthetic fiber filter (density 300g / m 2 ); Aperture: 0.5-1mm, interception efficiency ≥95% (for particles with a diameter ≥1μm, such as pollen and smoke); The third stage: activated carbon filter layer Material: Honeycomb activated carbon (iodine value ≥ 1000mg / g, specific surface area ≥ 1000m 2 / g); Thickness: 50mm, adsorption efficiency ≥90% (for volatile organic compounds such as formaldehyde, benzene, TVOC, etc., initial concentration ≤2mg / m 3 hour); Regeneration design: Support thermal desorption regeneration (temperature 120-150°C, cycle number ≥ 5 times). Level 4: HEPA high efficiency filter Material: Glass fiber filter paper (thickness 10mm, pleat number ≥100); Filtration grade: H13 (EN1822 standard), filtration efficiency for 0.3μm particles ≥99.97%; Sealed structure: Use polyurethane sealant to fill the seams to prevent air leakage. Level 5: Negative ion generation layer Material: Carbon fiber discharge needle array (discharge spacing 5mm, voltage 8kV); Negative ion release: ≥5×10 6 Pieces / cm 3 , effectively precipitating tiny particles and improving air freshness.

5. The ventilation design system for factory buildings according to claim 1 is characterized in that: The intelligent control center integrates a three-tier big data analysis architecture: Data collection layer: Real-time receiving temperature and humidity sensor (accuracy ±0.3℃ / ±2%RH), PM2.5 sensor (range 0-1000μg / m 3 ), harmful gas sensors (sensitivity 0.1-10ppm) and air flow meters (accuracy ±1.5%); store historical environmental data (≥1 year), with timestamp resolution ≤1 minute, and support data cleaning and outlier removal; Algorithm processing layer: The LSTM long short-term memory neural network (hidden layer nodes 64, training rounds ≥ 1000) is used to perform time series modeling on historical data to predict ventilation demand in the next 12 hours; the prediction weight is dynamically adjusted through the fuzzy logic control algorithm (the membership function uses the Gaussian type) in combination with real-time environmental parameters (such as outdoor temperature and humidity, indoor occupancy density); Decision-making and execution layer: Generate hierarchical control strategies based on prediction results: Low demand mode: wind speed ≤ 3m / s, operation time ≤ 4 hours / day; Medium demand mode: wind speed 3-6m / s, running time 4-8 hours / day; High demand mode: wind speed ≥ 6m / s, operating time ≥ 8 hours / day.

6. The ventilation design system for factory buildings according to claim 1, characterized in that: The high-efficiency ventilation device is equipped with an adjustable air guide plate, which optimizes airflow organization by changing the angle of the air guide plate, improves ventilation efficiency, and adapts to different industrial environments.

7. The ventilation design system for factory buildings according to claim 1 is characterized in that: The system has a remote monitoring function, and users can view the system operation status in real time through mobile phone APP or computer software, receive fault alarm information, and realize remote parameter adjustment.

8. The ventilation design system for factory buildings according to claim 1 is characterized in that: The high-efficiency ventilation device integrates a lighting function and adopts a FRP lighting panel with high light transmittance to meet the natural lighting needs of the factory building. The surface of the lighting panel is coated with an anti-ultraviolet coating to extend the service life.

9. The ventilation design system for factory buildings according to claim 1, characterized in that: The system is equipped with a rainproof component, which automatically closes the air inlet in a rainstorm environment to prevent rainwater from intruding. The rainproof component adopts a butterfly opening and closing design to ensure sealing performance.

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