An automatic ventilation system for underground mines

Abstract

The present invention proposes an automatic ventilation system for underground mines, which is used for traffic and ventilation control in mine tunnels. The automatic ventilation system includes dampers arranged in pairs in the tunnels and provided with infrared systems; the opening and closing mechanisms of the dampers are connected to the vehicle identification system and the infrared system; the working modes of the opening and closing mechanisms include a mixed traffic mode for people and vehicles and a separated traffic mode for people and vehicles. When the working mode is the mixed traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the dampers are located, the infrared system opens the dampers to allow the target object to pass; when the working mode is the separated traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the dampers are located, the infrared system starts the vehicle identification system to identify the target object in the tunnel section; when the target object is identified as a vehicle, the vehicle identification system opens the dampers to allow the vehicle to pass; the present invention can intelligently adjust the tunnel traffic and tunnel ventilation status.

Description

Technical Field

[0001] The invention relates to the technical field of mine tunnels, in particular to an automatic ventilation system for underground mines. Background Art

[0002] As the excavation depth of metal mines has gradually deepened in recent years, the difficulty of ventilation has also increased with the increase in depth; in underground mine working faces, there is often a high temperature environment, the ventilation lines are long, and the wind resistance is large. At the same time, due to the inability to manage the entire ventilation system during the passage process, the air volume is often wasted. After reaching the working face, there is basically no fresh air flow. Because there is no fresh air flow, the air drawn by the local fan is also polluted air, which cannot meet the standard working environment, and also causes the working face temperature to be high and the working environment of the workers to be poor. According to the safety work manual, if the fresh air flow does not reach a reasonable range, it will cause the area to stop working, which will have a great impact on production. Therefore, it is particularly important to manage the ventilation system of the entire mining area.

[0003] The damper is an important structure in the mine ventilation system. It blocks the wind flow, creates conditions for the distribution of mine wind flow on demand, and provides convenience for pedestrians and transportation equipment. The damper is usually installed in the tunnel. Two dampers form a group to form a buffer room for wind flow in the tunnel, which is convenient for the passage of vehicles, equipment, personnel, etc. Intelligent dampers and control systems are key parts of intelligent mines. With the improvement of mine safety production requirements, the promotion and development of smart mines, and the interconnection of all things brought by the fifth generation of communication technology, the market demand for this system is huge. Summary of the invention

[0004] The present invention provides an automatic ventilation system for underground mines, which can intelligently adjust tunnel traffic and tunnel ventilation status, and can intelligently adjust the ventilation status of the entire mining area.

[0005] The present invention adopts the following technical solutions.

[0006] An automatic ventilation system for underground mines, used for coordinated ventilation control of the entire mine, the automatic ventilation system comprises an air door arranged in the tunnel and capable of automatic folding, a control system at the mine ground master control terminal, an Internet of Things gateway, and a monitoring device capable of accessing the Internet of Things gateway; the master control terminal comprises a control console; the air door is a lightweight high-strength door; the air door opening mode comprises remote control opening and on-site control opening;

[0007] The damper is equipped with an automatic sensing device connected to the control console and capable of sensing personnel and vehicles. When the damper is opened by remote control, if personnel and vehicles need to enter or exit through the damper, the damper will open automatically.

[0008] The control system can remotely control the opening and closing of the damper; the control system is connected to the monitoring device through the Internet of Things gateway; the monitoring device includes sensors and monitoring instruments installed at the production site, which can monitor the air volume and temperature of the entire mining area at the same time; the control system can monitor the production sites in different areas of the mine and calculate the optimal ventilation route based on the monitored data to control the opening and closing status of the damper in the tunnel, so as to reasonably allocate the ventilation volume according to the working conditions of the production site;

[0009] The monitoring objects of the monitoring device include the air volume, temperature and CO content at the production site, and the data monitored by the monitoring device are transmitted to the control system;

[0010] The control console is provided with a switch for controlling the automatic opening of the damper, and each damper has at least one corresponding independent control switch at the control console to control it.

[0011] The automatic ventilation system for underground mines can be used for traffic and ventilation control in mine tunnels, and the automatic ventilation system includes dampers arranged in pairs in the tunnels and provided with infrared systems; the opening and closing mechanisms of the dampers are connected to the vehicle identification system and the infrared system; the working modes of the opening and closing mechanisms include a mixed traffic mode for people and vehicles and a separated traffic mode for people and vehicles. When the working mode is the mixed traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the damper is located, the infrared system opens the damper to allow the target object to pass; when the working mode is the separated traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the damper is located, the infrared system starts the vehicle identification system to identify the target object in the tunnel section; when the target object is identified as a vehicle, the vehicle identification system opens the damper to allow the vehicle to pass.

[0012] The opening and closing action of the damper is driven by a motor at the damper; the vehicle identification system has built-in lighting equipment and video acquisition equipment to identify the vehicle by video algorithm.

[0013] A manual control switch (6) for opening the damper is provided on the side outside the damper. When the opening and closing mode is a pedestrian and vehicle diversion mode, a person in the lane where the damper is located can open the damper through the manual control switch to pass through.

[0014] The opening and closing mechanism of the damper is also connected to an Internet of Things gateway; the Internet of Things gateway is connected to a client terminal or a sensor via a wireless network.

[0015] The IoT gateway collects mine tunnel data through client terminals or sensors to evaluate whether the opening and closing status of the damper is reasonable, and adjusts the opening and closing status of the damper according to the evaluation results.

[0016] When the sensor includes a smoke sensor, if the smoke concentration in the mine tunnel is greater than a threshold, the IoT switches open the damper.

[0017] The opening and closing mechanism of the damper includes an intelligent controller connected to the mine master control terminal; the mine master control terminal monitors the entry and exit of personnel and vehicles in the tunnel where the damper is located in real time through the intelligent controller; the intelligent controller is also connected to the infrared system, vehicle identification system, Internet of Things gateway and video acquisition equipment at the damper.

[0018] The damper body comprises a door plate (1), and the door plate is fixed to a tunnel (8) by means of a guide rail (7); the guide rail is fixed to the surface of a tunnel rock wall or is buried in the tunnel rock wall.

[0019] The door panel is a foldable door panel that can be stored in a box (3); the foldable structure of the door panel adopts a hook-type linking structure including slats, steel ropes (9), and a reel (2); the inner surface of the door panel adopts an arc-shaped design; and a rubber part (9) is installed at the connection of the slats (10) of the door panel hook-type linking structure to prevent air leakage.

[0020] The opening and closing mechanism of the damper is driven by a motor (5) connected to an intelligent controller (4); the motor drives a reel (2) of a foldable door panel structure via a chain to open and close the damper.

[0021] The use of the automatic ventilation system comprises the following steps:

[0022] Step 1: The monitoring device monitors the wind speed, air composition and surrounding temperature of the entire mining area through monitoring elements;

[0023] Step 2: Based on the monitored data, the control system conducts a safety assessment of the entire mine area through an expert system or optimization program, divides the safety level, simulates the air volume required for the ventilation area in the mine area as needed, and provides the optimal ventilation route;

[0024] Step 3: According to the optimal ventilation route, select the dampers that need to be opened and closed. The control system automatically adjusts the opening and closing status of the dampers in the entire mine area according to the calculation results;

[0025] Step 4: Automatically open and close the mine air doors according to the optimal route. The monitoring system evaluates the implementation effect of the optimal ventilation route by monitoring the air volume, temperature and air composition in the working area;

[0026] Step 5: If the evaluation result shows that the ventilation purpose can be achieved, the control system automatically optimizes the ventilation route again and gives further ventilation suggestions;

[0027] Step 6: When personnel and equipment need to pass through the damper, the damper is identified by the automatic sensing device and automatically temporarily opens or closes the damper;

[0028] Step 7: The monitoring system deploys sensors in the damper attachment area as needed, mainly monitoring the wind speed, temperature and gas content in the required area;

[0029] Step 8: If the optimal route given by the control system cannot meet the needs of the mine area, the console can directly control the opening and closing of the damper through manual buttons.

[0030] Step 9: The opening and closing of the damper is driven by a motor. There is a manual switch before and after the damper. When the automatic sensing fails, the opening and closing of the damper can be controlled by the manual switch near the damper.

[0031] The automatic damper of the present invention is a lightweight, high-strength device that can be opened by remote control and can also be controlled on site. It can reasonably distribute the air volume to areas with high air consumption and areas with low air consumption according to the on-site conditions to achieve reasonable working conditions, thus solving the problems of traditional dampers being bulky, inconvenient to install, and troublesome to open.

[0032] In order to save space, the air door of the present invention is designed to be automatically folded, taking up as little or no space as possible. An automatic sensing device is provided above the air door, which can sense people and vehicles, and automatically opens when people and vehicles enter or exit, thereby improving the traffic efficiency of the lane.

[0033] The present invention can monitor the wind volume and temperature conditions of the entire mining area at the same time through sensors installed on site. Through monitoring, safety warnings can be issued for different areas, or recommendations for installing local ventilation systems can be made. In addition, the air volume can be reasonably allocated by avoiding areas with high and low wind usage according to the on-site working conditions.

[0034] The present invention addresses the shortcomings of existing air doors that are inconvenient to open and cannot make reasonable ventilation arrangements for the mining area, resulting in a poor working environment in the working area and affecting production. The present invention can flexibly coordinate the wind flow in the entire mining area according to production conditions, thereby providing a guarantee for smooth production in the mining area.

[0035] The present invention can coordinate the wind flow in the entire mining area to ensure that the fresh wind flow at the working face meets the working needs; by controlling the opening and closing of the air doors in each tunnel of the entire mining area, the wind flow direction in the entire mining area is coordinated, and the wind flow direction can be adjusted by measuring the wind flow in different areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0037] Attached Figure 1 It is a schematic diagram of the process of the present invention;

[0038] Attached Figure 2 is a schematic diagram of the air door of the present invention;

[0039] Attached Figure 3 is a schematic diagram of a foldable structure of a door panel;

[0040] Attached Figure 4 It is a schematic diagram of the principle of the damper;

[0041] In the figure: 1-door panel; 2-scroll; 3-box; 4-intelligent controller; 5-motor; 6-manual control switch; 7-guide rail; 8-lane; 9-rubber part; 10-slat. DETAILED DESCRIPTION

[0042] like Figure 1-4 As shown, an automatic ventilation system for underground mines is used for coordinated ventilation control of the entire mine, and the automatic ventilation system includes an air door that is arranged in the tunnel and can be automatically folded, a control system at the mine ground master control terminal, an Internet of Things gateway, and a monitoring device that can be connected to the Internet of Things gateway; the master control terminal includes a console; the air door is a lightweight high-strength door; the opening method of the air door includes remote control opening and on-site control opening;

[0043] The damper is equipped with an automatic sensing device connected to the control console and capable of sensing personnel and vehicles. When the damper is opened by remote control, if personnel and vehicles need to enter or exit through the damper, the damper will open automatically.

[0044] The control system can remotely control the opening and closing of the damper; the control system is connected to the monitoring device through the Internet of Things gateway; the monitoring device includes sensors and monitoring instruments installed at the production site, which can monitor the air volume and temperature of the entire mining area at the same time; the control system can monitor the production sites in different areas of the mine and calculate the optimal ventilation route based on the monitored data to control the opening and closing status of the damper in the tunnel, so as to reasonably allocate the ventilation volume according to the working conditions of the production site;

[0045] The monitoring objects of the monitoring device include the air volume, temperature and CO content at the production site, and the data monitored by the monitoring device are transmitted to the control system;

[0046] The control console is provided with a switch for controlling the automatic opening of the damper, and each damper has at least one corresponding independent control switch at the control console to control it.

[0047] An automatic ventilation system for underground mines is used for traffic and ventilation control in mine tunnels. The automatic ventilation system includes dampers arranged in pairs in the tunnels and provided with infrared systems; the opening and closing mechanisms of the dampers are connected to the vehicle identification system and the infrared system; the working modes of the opening and closing mechanisms include a mixed traffic mode for people and vehicles and a separated traffic mode for people and vehicles. When the working mode is the mixed traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the dampers are located, the infrared system opens the dampers to allow the target object to pass; when the working mode is the separated traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the dampers are located, the infrared system starts the vehicle identification system to identify the target object in the tunnel section; when the target object is identified as a vehicle, the vehicle identification system opens the dampers to allow the vehicle to pass.

[0048] The opening and closing action of the damper is driven by a motor at the damper; the vehicle identification system has built-in lighting equipment and video acquisition equipment to identify the vehicle by video algorithm.

[0049] A manual control switch 6 for opening the damper is provided on the side outside the damper. When the opening and closing mode is a pedestrian-vehicle diversion mode, people in the lane where the damper is located can open the damper through the manual control switch to pass through.

[0050] The opening and closing mechanism of the damper is also connected to an Internet of Things gateway; the Internet of Things gateway is connected to a client terminal or a sensor via a wireless network.

[0051] The IoT gateway collects mine tunnel data through client terminals or sensors to evaluate whether the opening and closing status of the damper is reasonable, and adjusts the opening and closing status of the damper according to the evaluation results.

[0052] When the sensor includes a smoke sensor, if the smoke concentration in the mine tunnel is greater than a threshold, the IoT switches open the damper.

[0053] The opening and closing mechanism of the damper includes an intelligent controller connected to the mine master control terminal; the mine master control terminal monitors the entry and exit of personnel and vehicles in the tunnel where the damper is located in real time through the intelligent controller; the intelligent controller is also connected to the infrared system, vehicle identification system, Internet of Things gateway and video acquisition equipment at the damper.

[0054] The damper body comprises a door plate 1, and the door plate is fixed to a tunnel 8 by a guide rail 7; the guide rail is fixed to the surface of the tunnel rock wall or buried in the tunnel rock wall.

[0055] The door panel is a foldable door panel that can be stored in a box body 3; the foldable structure of the door panel adopts a hook-type linking structure including slats, steel ropes 9, and a reel 2; the inner surface of the door panel adopts an arc-shaped design; rubber parts 9 are installed at the connection of the slats 10 of the door panel hook-type linking structure to prevent air leakage.

[0056] The opening and closing mechanism of the damper is driven by a motor 5 connected to an intelligent controller 4; the motor drives a reel 2 of a foldable door panel structure via a chain to open and close the damper.

[0057] The use of the automatic ventilation system comprises the following steps:

[0058] Step 1: The monitoring device monitors the wind speed, air composition and surrounding temperature of the entire mining area through monitoring elements;

[0059] Step 2: Based on the monitored data, the control system conducts a safety assessment of the entire mine area through an expert system or optimization program, divides the safety level, simulates the air volume required for the ventilation area in the mine area as needed, and provides the optimal ventilation route;

[0060] Step 3: According to the optimal ventilation route, select the dampers that need to be opened and closed. The control system automatically adjusts the opening and closing status of the dampers in the entire mine area according to the calculation results;

[0061] Step 4: Automatically open and close the mine air doors according to the optimal route. The monitoring system evaluates the implementation effect of the optimal ventilation route by monitoring the air volume, temperature and air composition in the working area;

[0062] Step 5: If the evaluation result shows that the ventilation purpose can be achieved, the control system automatically optimizes the ventilation route again and gives further ventilation suggestions;

[0063] Step 6: When personnel and equipment need to pass through the damper, the damper is identified by the automatic sensing device and automatically temporarily opens or closes the damper;

[0064] Step 7: The monitoring system deploys sensors in the damper attachment area as needed, mainly monitoring the wind speed, temperature and gas content in the required area;

[0065] Step 8: If the optimal route given by the control system cannot meet the needs of the mine area, the console can directly control the opening and closing of the damper through manual buttons.

[0066] Step 9: The opening and closing of the damper is driven by a motor. There is a manual switch before and after the damper. When the automatic sensing fails, the opening and closing of the damper can be controlled by the manual switch near the damper.

[0067] In this example, if Figure 3 As shown, when the motor 5 rotates to drive the reel 2 to rotate, the reel pulls up the steel rope 9, and the steel rope 9 pulls up the slats, so that the door panel is folded in the form of a shutter, and the damper is opened. The steel rope 9 is located in the guide rail 7, and the reel 2 and the motor 5 as well as the damper door panel 1 folded after opening are located in the box 3.

[0068] In this example, a mine monitoring device connected to the Internet of Things is set up, which mainly installs sensors and monitoring instruments on site to monitor the air volume and temperature on site, and transmits the monitored data to the console of the Internet of Things control system, so that the Internet of Things control system can control the automatic opening of the damper.

[0069] Example:

[0070] An automatic ventilation system for underground mines is used to adjust the wind flow and air volume of the entire mining area; it includes automatic dampers, a control system, a monitoring system and a control platform; when deployed, the automatic dampers and the monitoring system are first installed according to the mine conditions.

[0071] Cables and control base stations are installed through the cable well; the control system and control platform at the mine ground master control terminal are installed in the surface monitoring hall.

[0072] Step 1: The monitoring device monitors the wind speed, air composition and surrounding temperature of the entire mining area through monitoring elements (sensors);

[0073] Step 2: Based on the monitored data, the control system conducts a safety assessment of the entire mine area through an expert system or optimization program, divides the safety level, simulates the air volume required for the ventilation area in the mine area as needed, and provides the optimal ventilation route;

[0074] Step 3: According to the optimal ventilation route, select the dampers that need to be opened and closed. The control system automatically adjusts the opening and closing status of the dampers in the entire mine area according to the calculation results;

[0075] Step 4: Automatically open and close the mine air doors according to the optimal route. The monitoring system evaluates the implementation effect of the optimal ventilation route by monitoring the air volume, temperature and air composition in the working area;

[0076] Step 5: If the evaluation result shows that the ventilation purpose can be achieved, the control system automatically optimizes the ventilation route again and gives further ventilation suggestions;

[0077] Step 6: When personnel and equipment need to pass through the damper, the damper is identified by the automatic sensing device and automatically temporarily opens or closes the damper;

[0078] Step 7: The monitoring system deploys sensors in the damper attachment area as needed, mainly monitoring the wind speed, temperature and gas content in the required area;

[0079] Step 8: If the optimal route given by the control system cannot meet the needs of the mine area, the console can directly control the opening and closing of the damper through manual buttons.

[0080] Step 9: The opening and closing of the damper is driven by a motor. There is a manual switch before and after the damper. When the automatic sensing fails, the opening and closing of the damper can be controlled by the manual switch near the damper.

Claims

1. An automatic ventilation system for underground mines, used for coordinated ventilation control of the entire mine, characterized by: The automatic ventilation system includes an automatically foldable damper installed in the tunnel, a control system at the mine ground master control terminal, an Internet of Things gateway, and a monitoring device that can be connected to the Internet of Things gateway; the master control terminal includes a control console; the damper is a lightweight high-strength door; the damper opening method includes remote control opening and on-site control opening; The damper is equipped with an automatic sensing device connected to the control console and capable of sensing personnel and vehicles. When the damper is opened by remote control, if personnel and vehicles need to enter or exit through the damper, the damper will open automatically. The control system can remotely control the opening and closing of the damper; the control system is connected to the monitoring device through the Internet of Things gateway; the monitoring device includes sensors and monitoring instruments installed at the production site, which can monitor the air volume and temperature of the entire mining area at the same time; the control system can monitor the production sites in different areas of the mine and calculate the optimal ventilation route based on the monitored data to control the opening and closing status of the damper in the tunnel, so as to reasonably allocate the ventilation volume according to the working conditions of the production site; The monitoring objects of the monitoring device include the air volume, temperature and CO content at the production site, and the data monitored by the monitoring device are transmitted to the control system; The console is provided with a switch for controlling the automatic opening of the damper, and each damper has at least one corresponding independent control switch at the console for controlling it; The automatic ventilation system for underground mines is also used for traffic and ventilation control in mine tunnels. The automatic ventilation system includes dampers arranged in pairs in the tunnels and provided with infrared systems; the opening and closing mechanisms of the dampers are connected to the vehicle identification system and the infrared system; the working modes of the opening and closing mechanisms include a mixed traffic mode for people and vehicles and a separated traffic mode for people and vehicles. When the working mode is the mixed traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the damper is located, the infrared system opens the damper to allow the target object to pass; when the working mode is the separated traffic mode for people and vehicles, if the infrared system is triggered by infrared rays of a target object in the tunnel where the damper is located, the infrared system starts the vehicle identification system to identify the target object in the tunnel section; when the target object is identified as a vehicle, the vehicle identification system opens the damper to allow the vehicle to pass; The use of the automatic ventilation system comprises the following steps: Step 1: The monitoring device monitors the wind speed, air composition and surrounding temperature of the entire mining area through monitoring elements; Step 2: Based on the monitored data, the control system conducts a safety assessment of the entire mine area through an expert system or optimization program, divides the safety level, simulates the air volume required for the ventilation area in the mine area as needed, and provides the optimal ventilation route; Step 3: According to the optimal ventilation route, select the dampers that need to be opened and closed. The control system automatically adjusts the opening and closing status of the dampers in the entire mine area according to the calculation results; Step 4: Automatically open and close the mine air doors according to the optimal route. The monitoring system evaluates the implementation effect of the optimal ventilation route by monitoring the air volume, temperature and air composition in the working area; Step 5: If the evaluation result shows that the ventilation purpose can be achieved, the control system automatically optimizes the ventilation route again and gives further ventilation suggestions; Step 6: When personnel and equipment need to pass through the damper, the damper is identified by the automatic sensing device and automatically temporarily opens or closes the damper; Step 7: The monitoring system deploys sensors in the damper attachment area as needed, mainly monitoring the wind speed, temperature and gas content in the required area; Step 8: If the optimal route given by the control system cannot meet the needs of the mine area, the console can directly control the opening and closing of the damper through the manual button; Step 9: The opening and closing of the damper is driven by a motor. There is a manual switch before and after the damper. When the automatic sensor fails, the manual switch near the damper can control the opening and closing of the damper; The automatic ventilation system ensures that fresh airflow at the working face meets work needs by coordinating the airflow of the entire mine area; specifically, by controlling the opening and closing of air doors in each tunnel of the entire mine area, coordinating the direction of airflow in the entire mine area, or by measuring the air volume in different areas to adjust the direction of airflow.

2. The automatic ventilation system for underground mines according to claim 1, characterized in that: The opening and closing action of the damper is driven by a motor at the damper; the vehicle identification system has built-in lighting equipment and video acquisition equipment to identify the vehicle by video algorithm; A manual control switch (6) for opening the damper is provided on the side outside the damper. When the opening and closing mode is a pedestrian and vehicle diversion mode, a person in the lane where the damper is located can open the damper through the manual control switch to pass through.

3. The automatic ventilation system for underground mines according to claim 1, characterized in that: The opening and closing mechanism of the damper is also connected to an Internet of Things gateway; the Internet of Things gateway is connected to a client terminal or a sensor via a wireless network.

4. The automatic ventilation system for underground mines according to claim 3, characterized in that: The IoT gateway collects mine tunnel data through client terminals or sensors to evaluate whether the opening and closing status of the damper is reasonable, and adjusts the opening and closing status of the damper according to the evaluation results.

5. The automatic ventilation system for underground mines according to claim 4, characterized in that: When the sensor includes a smoke sensor, if the smoke concentration in the mine tunnel is greater than a threshold, the IoT switches open the damper.

6. The automatic ventilation system for underground mines according to claim 1, characterized in that: The opening and closing mechanism of the damper includes an intelligent controller connected to the mine master control terminal; the mine master control terminal monitors the entry and exit of personnel and vehicles in the tunnel where the damper is located in real time through the intelligent controller; the intelligent controller is also connected to the infrared system, vehicle identification system, Internet of Things gateway and video acquisition equipment at the damper.

7. The automatic ventilation system for underground mines according to claim 1, characterized in that: The damper body comprises a door plate (1), and the door plate is fixed to a tunnel (8) by means of a guide rail (7); the guide rail is fixed to the surface of a tunnel rock wall or is buried in the tunnel rock wall.

8. An automatic ventilation system for underground mines according to claim 7, characterized in that: The door panel is a foldable door panel that can be stored in a box (3); the foldable structure of the door panel adopts a hook-type linking structure including a slat, a steel rope (9), and a reel (2); the inner surface of the door panel adopts an arc-shaped design; a rubber part (9) is installed at the connection of the slat (10) of the door panel hook-type linking structure to prevent air leakage; The opening and closing mechanism of the damper is driven by a motor (5) connected to an intelligent controller (4); the motor drives a reel (2) of a foldable door panel structure via a chain to open and close the damper.

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