Medium interaction device at top of gas film and gas film equipment with medium interaction device

Abstract

The utility model provides a gas film top medium interaction device and a gas film device with the same, the gas film top medium interaction device is applied to the top of the gas film device, the gas film top medium interaction device comprises a control part, a fixing assembly, a sealing part and a protective cover, the top of the gas film device is provided with an exhaust hole, the sealing part is hermetically connected with the periphery of the exhaust hole through the fixing assembly, and the protective cover is connected with the sealing part; a first space is formed in the sealing part and the air film equipment, a valve body for adjusting the sealing degree of the first space and an air quality sensor are arranged in the sealing part, and the control part is in communication connection with the valve body and the air quality sensor and is used for obtaining a detection result of the air quality sensor and controlling a switch of the valve body. The exhaust hole is formed in the top of the air film equipment, and the medium interaction device comprising the air quality sensor and the multi-blade air valve is additionally arranged, so that the multi-blade air valve can be intelligently opened and closed according to a detection result of the air quality sensor to realize exhaust and pollution discharge in the air film equipment, and the air film equipment is simple in structure and convenient to produce and apply.

Description

Technical Field

[0001] The utility model relates to the technical field of air film equipment, in particular to a medium interaction device on the top of an air film and an air film equipment having the same. Background Art

[0002] Air membrane equipment is a structural form that uses the pressure difference between inside and outside to tighten the lightweight membrane material to form an airtight space. Its working principle is to fix the membrane material around the ground foundation structure, and use the air supply system to raise the indoor air pressure to a certain pressure, so that a pressure difference is generated inside and outside the roof to resist external forces. Since it uses air pressure for support, no beams or columns are required, so a larger completely cleared building space can be obtained. Since the internal space of air membrane equipment is relatively large, in order to achieve better air quality, there are higher requirements for ventilation.

[0003] At present, most air membrane equipment adopts the air supply and exhaust system on the ground to achieve the effect of ventilation. The air supply and exhaust system on the ground of the air membrane equipment can only achieve the effect of air convection at the bottom layer, while the air convection effect in the high space inside the air membrane is relatively poor. There is a plan to add ventilation equipment above the air membrane equipment, but the structure is too complicated, adding various complex pipes, load-bearing components, motors, etc., resulting in high costs and complex structures, which are not conducive to production and application. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a medium interaction device on the top of an air film and an air film device having the same, and the scheme is as follows:

[0005] A medium interaction device on the top of an air film, applied to the top of an air film device, comprises a control part, a fixing component, a sealing part and a protective cover, wherein an exhaust hole is provided on the top of the air film device, the sealing part is sealed and connected to the periphery of the exhaust hole through the fixing component, and the protective cover is connected to the sealing part;

[0006] The sealing part and the interior of the air membrane device form a first space, and a valve body and at least one air quality sensor are arranged in the sealing part. The valve body is used to adjust the sealing degree of the first space. The control part is respectively communicatively connected with the valve body and the air quality sensor, and is used to obtain the detection result of the air quality sensor and control the switch of the valve body to realize the medium interaction inside and outside the air membrane device.

[0007] In a specific embodiment, the fixing assembly includes a plurality of fixing members, and each of the fixing members is evenly distributed around the exhaust hole.

[0008] In a specific embodiment, the air quality sensor includes at least one gas sensor, at least one dust sensor and at least one smoke sensor.

[0009] In a specific embodiment, the gas sensor includes a methane sensor and a carbon monoxide sensor.

[0010] In a specific embodiment, the protective cover is a tower-shaped protective cover.

[0011] In a specific embodiment, the protective cover is a non-powered hood.

[0012] In a specific embodiment, the valve body is a circular multi-leaf damper.

[0013] In a specific embodiment, the protective cover forms a protective area on the sealing portion, and the valve body is located in the protective area.

[0014] The present application also provides an air film device, comprising the medium interaction device described in the above technical solution, and an exhaust hole is opened on the top of the air film device, and the medium interaction device is connected to the periphery of the exhaust hole.

[0015] In a specific embodiment, it also includes a reinforcing membrane for reinforcement, wherein the reinforcing membrane is coated around the periphery of the exhaust hole and connected to the air film device.

[0016] Beneficial effects: The utility model opens an exhaust hole on the top of the air film equipment and adds a medium interaction device including an air quality sensor and a multi-leaf air valve, so that the multi-leaf air valve can be intelligently opened and closed according to the detection results of the air quality sensor to achieve exhaust and sewage discharge inside the air film equipment. It has a simple structure, low manufacturing cost, and is easy to produce and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a top view of the exhaust hole of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the non-powered hood of the utility model;

[0021] Figure 4 It is a schematic diagram of the valve body operation flow of the utility model.

[0022] The figure numbers are as follows: 1-control unit; 2-fixing component; 3-sealing part; 4-protective cover; 5-exhaust hole; 6-first space; 7-valve body; 8-air quality sensor; 81-methane sensor; 82-carbon monoxide sensor; 83-dust sensor; 9-reinforcement diaphragm; 10-air film equipment. DETAILED DESCRIPTION

[0023] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in combination with the embodiments and drawings to fully understand the purpose, features and effects of the present invention.

[0024] In the following, various embodiments of the present invention will be described more fully. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present invention.

[0025] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0026] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0027] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0028] It should be noted that in the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation" and the like 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 an indirect connection through an intermediate medium; 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 according to specific circumstances.

[0029] In the present invention, those skilled in the art need to understand that the terms indicating orientation or positional relationship herein are based on the orientation or positional relationship 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 should not be understood as a limitation on the present invention.

[0030] The terms used in the various embodiments of the present invention are only used for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present invention. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the meanings commonly understood by ordinary technicians in the field of the various embodiments of the present invention. The terms (such as the terms defined in the dictionary used in general) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the present invention.

[0031] Embodiment 1

[0032] In this embodiment, an exhaust hole is opened on the top of the air membrane equipment, and a medium interaction device including an air quality sensor and a multi-leaf air valve is added, so that the multi-leaf air valve can be opened and closed intelligently according to the detection results of the air quality sensor to achieve exhaust and sewage discharge inside the air membrane equipment. It has a simple structure, low manufacturing cost, and is easy to produce and use.

[0033] A medium interaction device on the top of an air film is applied to the top of an air film device 10, comprising a control part 1, a fixing component 2, a sealing part 3 and a protective cover 4. An exhaust hole 5 is opened on the top of the air film device 10, the sealing part 3 is sealed and connected to the exhaust hole 5 through the fixing component 2, and the protective cover 4 is connected to the sealing part 3;

[0034] The sealing part 3 and the interior of the air membrane device 10 form a first space 6. A valve body 7 and at least one air quality sensor 8 are provided in the sealing part 3. The valve body 7 is used to adjust the sealing degree of the first space 6. The control part 1 is communicatively connected to the valve body 7 and the air quality sensor 8 respectively, and is used to obtain the detection result of the air quality sensor 8 and control the switch of the valve body 7 to realize the medium interaction inside and outside the air membrane device 10.

[0035] This embodiment provides a medium interaction device on the top of the air film, as shown in the attached Figure 1 , Attachment Figure 2 and attached Figure 4 As shown, it is a technical innovation applied to the top of the air film device 10. The medium interaction device is composed of a control part 1, a fixing component 2, a sealing part 3 and a protective cover 4. An exhaust hole 5 is opened on the top of the air film device 10, and the sealing part 3 is connected to the exhaust hole 5 through the fixing component 2 to achieve sealing. The protective cover 4 is connected to the sealing part 3.

[0036] The sealing part 3 and the inside of the air film device 10 form a first space 6. In the sealing part 3, a valve body 7 and at least one air quality sensor 8 are provided. The valve body 7 is used to adjust the sealing degree of the first space 6, and the control part 1 is respectively connected to the valve body 7 and the air quality sensor 8 for communication. In this way, the control part 1 can obtain the detection result of the air quality sensor 8 and control the switch of the valve body 7 to realize the interaction of the medium inside and outside the air film device 10.

[0037] Through the medium interaction device on the top of the air film, the medium exchange inside and outside the air film device 10 can be effectively controlled. In practical applications, the air quality sensor 8 monitors the gas conditions in the environment and transmits the detection results to the control unit 1. The control unit 1 adjusts the sealing degree of the first space 6 by controlling the switch of the valve body 7 according to the detection results. In this way, it can be ensured that the air quality inside the air film device 10 meets the requirements. In this embodiment, the control unit 1 is a programmable logic controller (PLC) control system. The PLC control system refers to an automated control system that uses a programmable logic controller (PLC) as a core device and is composed of input and output modules, sensors, actuators and other components. PLC control systems are widely used in the production process of various industries to realize automated control and monitoring of equipment, machines and production lines. It has the characteristics and advantages of flexible programmability, reliability and stability, strong scalability, monitoring and diagnosis, and is widely used in various industries, making important contributions to the improvement of production efficiency and quality.

[0038] At the same time, the presence of the protective cover 4 can also effectively protect the sealing part 3 and other devices from interference and damage from the external environment. The protective cover 4 is tightly connected to the sealing part 3 to form a reliable protective layer, which can effectively prevent dust, rain, snow and other debris from entering the sealing part 3 and maintain the normal operation of the air film device 10.

[0039] In summary, the medium interaction device on the top of the air film can realize the medium interaction inside and outside the air film device 10, and ensure that the gas quality inside the device meets the requirements. The device is simple and reliable, and can effectively protect the device from interference from the external environment.

[0040] In a specific embodiment, the fixing assembly 2 includes a plurality of fixing members, and each fixing member is evenly distributed around the exhaust hole 5 .

[0041] As attached Figure 2 As shown, in this embodiment, the fixing assembly 2 is an important component of the medium interaction device on the top of the air film. It is composed of a plurality of fixing parts, which are evenly distributed around the exhaust hole 5. By evenly distributing the fixing parts around the exhaust hole 5, it can be effectively ensured that the connection between the sealing part 3 and the exhaust hole 5 is tight and stable, so as to maintain good sealing between the sealing part 3 and the exhaust hole 5.

[0042] The material of the fixings is usually a high-strength, corrosion-resistant material, such as stainless steel or alloy material. These materials have excellent durability and anti-oxidation properties, and can maintain stability and reliability during long-term use. By evenly distributing the fixings around the exhaust hole 5, not only can the stress concentration problem caused by uneven connection points be reduced, but also the structural strength of the entire device can be improved. This evenly distributed design can also effectively increase the contact area between the fixings and the exhaust hole 5, thereby improving the sealing performance.

[0043] In specific applications, the number and layout of the fixings can be adjusted according to specific application requirements. Designers will reasonably determine the number and position of the fixings according to factors such as the size, shape and use environment of the air film device 10 to maximize the stability and sealing of the device.

[0044] In a specific embodiment, the air quality sensor 8 includes at least one gas sensor and at least one dust sensor.

[0045] In this embodiment, the air quality sensor 8 is one of the key components of the air film top medium interaction device, and includes at least one gas sensor, at least one dust sensor and at least one smoke sensor.

[0046] The gas sensor is a device used to detect the composition and concentration of gas. It can monitor and measure various gases in the environment, such as oxygen, carbon dioxide, carbon monoxide, methane, etc. The gas sensor uses specific sensing technologies, such as electrochemical sensing, infrared sensing or semiconductor sensing, etc., to accurately measure and analyze the gas according to its characteristics. Through the gas sensor, the quality and content of the gas can be monitored in real time, so that necessary measures can be taken in time to adjust the gas environment in the air film device 10.

[0047] In addition, the dust sensor is a device for detecting and measuring particulate matter in the environment. It can monitor and measure tiny particles in the air, such as dust, smoke, pollen, etc. The dust sensor usually adopts the optical scattering principle or the resistance principle to achieve measurement by detecting the interaction between particulate matter and light or resistance. Through the dust sensor, the air quality inside and outside the air film device 10 can be monitored and evaluated in real time, so that appropriate measures can be taken in time to maintain the normal operation of the equipment.

[0048] At the same time, the function of the smoke sensor is to detect whether there is smoke in the surrounding environment. Smoke may come from fire, cooking activities or other combustion processes. Through the data of the smoke sensor, smoke conditions can be detected in time and smoke can be exhausted to ensure the safety of personnel or equipment in the air membrane device 10.

[0049] In a specific embodiment, the air quality sensor 8 may include multiple gas sensors and dust sensors to cover a wider monitoring range. In this way, the gas composition, concentration and content of particulate matter can be fully monitored to provide accurate environmental data for the air film device 10. By connecting with the control unit 1, the air quality sensor 8 can transmit the detection results to the control unit 1 to achieve real-time data feedback and adjustment.

[0050] In a specific embodiment, the gas sensor includes a methane sensor and a carbon monoxide sensor.

[0051] In this embodiment, the gas sensor is one of the important components of the medium interaction device on the top of the air film, and it includes a methane sensor and a carbon monoxide sensor.

[0052] Methane sensors are key devices used to detect and measure the concentration of methane gas in the environment. Methane is a common natural gas that is widely used in industry, energy production, and daily life. However, high concentrations of methane gas may pose a safety hazard, so timely monitoring and control of methane concentrations is essential to ensure the safety of personnel and equipment. Methane sensors use specific sensing technologies, such as infrared absorption, catalytic combustion, or semiconductor gas sensitivity, to accurately monitor changes in the concentration of methane gas in the environment, and issue alarms or take corresponding control measures in a timely manner.

[0053] In addition, carbon monoxide sensors are key equipment for detecting and measuring the concentration of carbon monoxide gas in the environment. Carbon monoxide is a colorless, odorless, toxic gas that is often a byproduct of industrial production and combustion processes. High concentrations of carbon monoxide pose a serious threat to human health, so it is necessary to monitor and control the concentration of carbon monoxide in a timely manner. Carbon monoxide sensors usually use technologies such as electrochemistry, infrared absorption or thermal conductivity, which can accurately monitor the concentration changes of carbon monoxide gas in the environment and trigger alarms or control systems in a timely manner to ensure the safety of personnel.

[0054] In a specific embodiment, as shown in the attached Figure 1 As shown, the protective cover 4 is a tower-shaped protective cover 4. The tower-shaped protective cover 4 is a specially designed cover, which is shaped like a tower and covers the top of the air film device 10. It is usually made of highly weather-resistant and corrosion-resistant materials, such as stainless steel, aluminum alloy or glass fiber reinforced materials. The tower-shaped protective cover 4 is designed to provide multiple protection functions, including protecting the air film device 10 from the external environment, and providing isolation, reducing noise transmission, and shielding wind.

[0055] First, the tower-shaped protective cover 4 can effectively protect the air film device 10. It can cover the top of the air film device 10 to form a physical barrier to prevent impurities, dust, rainwater, etc. from entering the interior of the device. This helps to reduce the damage and impact of external factors on the air film device 10 and extend the service life and performance stability of the device.

[0056] Secondly, the tower-shaped protective cover 4 also has the functions of isolation and shielding. Due to its special shape and material selection, the tower-shaped protective cover 4 can effectively reduce noise propagation and reduce the impact of noise generated during the operation of the equipment on the surrounding environment. In addition, the tower-shaped protective cover 4 can also shield wind power, reduce the wind load on the air film device 10, and provide a more stable working environment.

[0057] The design of the tower-shaped protective cover 4 also takes into account maintainability and ease of operation. It usually has a structure that is easy to disassemble and install, which is convenient for overhauling, maintaining and cleaning the air film device 10. In addition, the tower-shaped protective cover 4 can also be customized according to specific needs to meet the requirements of different places and applications.

[0058] In a specific embodiment, as shown in FIG. Figure 3 As shown, the protective cover 4 is a non-powered hood. Non-powered hoods are a type of passive protective equipment widely used in the industrial field. Their main function is to discharge harmful gases outdoors by utilizing the power of natural airflow, thereby reducing the concentration of harmful gases indoors and protecting the health and safety of operators. Non-powered hoods do not require external power supplies or mechanical equipment and have the advantages of stable operation, easy maintenance, and low cost.

[0059] In this specific embodiment, an unpowered hood is applied to the top of the gas processing equipment as an additional protective measure. During operation, since the gas processing equipment will produce a certain amount of harmful gases, these gases need to be discharged in time to avoid damage to the operator and equipment. The unpowered hood can use the power of natural airflow to discharge harmful gases to the outdoors, thereby ensuring indoor air quality and the health and safety of operators. The unpowered hood is simple to use and low-cost, and is suitable for the protection of various gas processing equipment, providing an important guarantee for the safe operation of gas processing equipment.

[0060] In a specific embodiment, the valve body 7 is a circular multi-leaf damper.

[0061] The circular multi-leaf damper is a device used to regulate gas flow, usually installed in a piping system. Its main function is to adjust the flow and direction of the gas as needed. The structural design of the multi-leaf damper allows it to flexibly control the gas flow while having low pressure drop and efficient gas regulation characteristics.

[0062] The circular multi-leaf damper is usually composed of a valve body 7, a plurality of rotatable blades, an actuator, and connecting parts. When the gas passes through the multi-leaf damper, the rotatable blades can be adjusted as needed to change the flow direction and flow rate of the gas. The actuator of the multi-leaf damper can be manually operated or automatically controlled, and can be remotely adjusted or automatically controlled according to system requirements.

[0063] In this specific embodiment, a circular multi-leaf damper is applied to the sealing part 3 to adjust the sealing degree of the sealing part 3. By reasonably setting the circular multi-leaf damper, accurate control of the gas flow can be achieved to ensure the stability and controllability of the gas flow during system operation. In addition, the circular multi-leaf damper can also be designed according to specific process requirements and safety standards to ensure that the gas flow can be effectively adjusted during operation to ensure the safety of equipment and operators. The circular multi-leaf damper has the advantages of simple structure, flexible operation, and good adjustment performance, and is suitable for the protection and adjustment of various gas treatment systems.

[0064] In a specific embodiment, the protective cover 4 forms a protective area on the sealing portion 3, and the valve body 7 is located in the protective area. Through this design, it is possible to effectively prevent foreign matter, dust, liquid, etc. from entering, and prevent the equipment or components from being damaged or contaminated. The protective cover 4 can be designed and customized according to specific needs and characteristics of the equipment to ensure the best protection effect.

[0065] In practical applications, the design of the protective cover 4 needs to consider multiple factors, such as the shape, size, and position of the valve body 7, to ensure that the protective cover 4 can provide effective protection. In addition, the protective cover 4 also needs to be easy to install and disassemble, so as to facilitate operation during equipment maintenance and overhaul.

[0066] In this embodiment, an exhaust hole is opened on the top of the air membrane equipment, and a medium interaction device including an air quality sensor and a multi-leaf air valve is added, so that the multi-leaf air valve can be opened and closed intelligently according to the detection results of the air quality sensor to achieve exhaust and sewage discharge inside the air membrane equipment. It has a simple structure, low manufacturing cost, and is easy to produce and use.

[0067] Embodiment 2

[0068] This embodiment provides an air film device 10 , including the medium interaction device mentioned in the above technical solution, and an exhaust hole 5 is opened on the top of the air film device 10 , and the medium interaction device is connected to the periphery of the exhaust hole 5 .

[0069] This embodiment provides an air film device 10, which adopts the medium interaction device mentioned in the above technical solution. The air film device 10 also has an exhaust hole 5 opened on the top. In practical applications, the size and number of the exhaust holes 5 can be selected according to actual needs. During use, the air film device 10 can effectively discharge the waste gas and pollutants generated inside the device through the medium interaction device and the exhaust holes 5, ensuring the safe operation of the device and environmental hygiene.

[0070] In a specific embodiment, a reinforcing membrane 9 for reinforcement is also included, and the reinforcing membrane 9 is wrapped around the outer periphery of the exhaust hole 5 and connected to the air film device 10. The function of the reinforcing membrane 9 is to enhance the structural stability of the air film device 10 and protect the exhaust hole 5 from the influence of the external environment. In practical applications, the number of layers of the reinforcing membrane 9 can be increased according to actual needs to provide a better reinforcement effect.

[0071] The reinforcing membrane 9 is usually made of high-strength, wear-resistant materials, such as polyester fiber or glass fiber reinforced materials. They have good flexibility and plasticity, can adapt to the shape of the air film device 10 and provide effective reinforcement. The reinforcing membrane 9 is tightly wrapped around the periphery of the exhaust hole 5 and is firmly connected to the air film device 10 through a connector.

[0072] In practical applications, the installation position and connection method of the reinforcing membrane 9 can be adjusted according to specific needs. It is usually installed on the periphery of the air film device 10, covering the surrounding area of ​​the exhaust hole 5 to provide additional structural support and protection. Through the reinforcement of the reinforcing membrane 9, the air film device 10 can operate more stably and reliably when facing factors such as wind force and temperature changes in the external environment.

[0073] The utility model opens an exhaust hole on the top of the air film equipment and adds a medium interaction device including an air quality sensor and a multi-leaf air valve, so that the multi-leaf air valve can be intelligently opened and closed according to the detection result of the air quality sensor to realize exhaust and sewage discharge inside the air film equipment. The utility model has a simple structure, low manufacturing cost, and is easy to produce and use.

[0074] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A medium interaction device on top of an air film, characterized in that: Applied to the top of the air film device, comprising a control part, a fixing component, a sealing part and a protective cover, the top of the air film device is provided with an exhaust hole, the sealing part is sealed and connected with the periphery of the exhaust hole through the fixing component, and the protective cover is connected with the sealing part to protect the sealing part; The sealing part and the interior of the air membrane device form a first space, and a valve body and at least one air quality sensor are arranged in the sealing part. The valve body is used to adjust the sealing degree of the first space. The control part is respectively communicatively connected with the valve body and the air quality sensor, and is used to obtain the detection result of the air quality sensor and control the switch of the valve body to realize the medium interaction inside and outside the air membrane device.

2. A medium interaction device on top of an air membrane according to claim 1, characterized in that: The fixing assembly includes a plurality of fixing parts, and each of the fixing parts is evenly distributed around the air exhaust hole.

3. The medium interaction device on the top of the air membrane according to claim 1, characterized in that: The air quality sensor includes at least one gas sensor, at least one dust sensor and at least one smoke sensor.

4. The medium interaction device on the top of the air membrane according to claim 3, characterized in that: The gas sensors include a methane sensor and a carbon monoxide sensor.

5. The medium interaction device on the top of the air membrane according to claim 1, characterized in that: The protective cover is a tower-shaped protective cover.

6. The medium interaction device on the top of the air membrane according to claim 1, characterized in that: The protective cover is a non-powered hood.

7. The medium interaction device on the top of the air membrane according to claim 1, characterized in that: The valve body is a circular multi-leaf air valve.

8. The medium interaction device on the top of the air membrane according to claim 1, characterized in that: The protective cover forms a protective area on the sealing portion, and the valve body is located in the protective area.

9. An air film device, characterized in that: It comprises a medium interaction device on the top of an air membrane as described in any one of claims 1 to 8, and an exhaust hole is opened on the top of the air membrane device, and the medium interaction device on the top of the air membrane is connected to the periphery of the exhaust hole.

10. The air film device according to claim 9, characterized in that: It also includes a reinforcing membrane for reinforcement, which is wrapped around the periphery of the exhaust hole and connected to the air film equipment.

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