Ventilation equipment for civil air defense engineering

Abstract

The utility model relates to ventilation equipment for civil air defense engineering, and relates to the technical field of civil air defense engineering ventilation. The corrugated steel pipe conveying device comprises a rack body, moving wheels, a filtering component, a turbofan, a conveying component, an air outlet port and a flow guide plate, and the outside of the air outlet port and corrugated steel pipes are conveyed into a project. According to the ventilation equipment for the civil air defense project, air is firstly purified through the filtering component, then enters the conveying component, is pressurized through the turbofan and finally is conveyed into the civil air defense project through the corrugated steel pipe through the flow guide plate and the air outlet port, and a clean ventilation environment is provided.

Description

Technical Field

[0001] This application relates to the field of ventilation technology for civil defense engineering, and in particular to a ventilation device for civil defense engineering. Background Technology

[0002] Currently, ventilation technology in civil defense projects mainly relies on mechanical air supply and exhaust systems, which use fans to drive airflow and achieve air exchange. As protection requirements continue to increase, traditional air supply and exhaust systems are gradually evolving towards high-efficiency filtration, low noise, and energy saving. Mainstream technologies include combinations of axial flow fans and filters, as well as variable frequency control or heat recovery devices used in some high-end scenarios. While these technologies can meet basic ventilation needs, their instability and high energy consumption remain prominent issues under extreme conditions, such as prolonged periods of confinement or high-dust environments.

[0003] Existing technical solutions mainly fall into three categories: First, unidirectional forced ventilation systems, which use high-pressure fans to deliver outside air into the building through filter canisters. This method is simple in structure, but exhaust relies on natural infiltration, resulting in low ventilation efficiency. Second, bidirectional mechanical ventilation systems, which use parallel supply and exhaust fan units, can achieve controlled ventilation, but the equipment occupies a large area and generates excessive noise. Third, distributed micro-positive pressure systems, which arrange small fans at multiple points within the building. This method can improve the uniformity of airflow distribution, but the repeated installation of filter units increases maintenance costs. These technical solutions address basic ventilation needs to some extent, but they have many shortcomings in practical applications.

[0004] Existing technologies generally face some drawbacks: (1) Separating the fan and filter device will increase wind resistance loss, thereby increasing energy consumption by about 15%-20%; (2) In emergency mode, existing technologies are difficult to quickly switch to clean or filtration operation; (3) Metal ducts are prone to deformation after being subjected to shock waves, which will affect air tightness. Utility Model Content

[0005] In order to address the problems of high energy consumption, inflexible switching of operating states, and slow clean air delivery rate of existing ventilation equipment used in civil defense projects due to their inherent design characteristics, this application provides a ventilation equipment for civil defense projects.

[0006] This application provides a ventilation device for civil defense projects, which adopts the following technical solution: it includes a frame body, movable wheels respectively set at the four corners of the lower end face of the frame body, a filter component fixedly set on one side of the frame body, a turbine fan connected to the air outlet end of the filter component, a conveying component set between the air inlet end of the turbine fan and the filter component, an air outlet port connected to the air outlet end of the turbine fan, and a guide plate set in the inner cavity of the air outlet port. The air outlet port is externally connected to a corrugated steel pipe to transport the air into the project. The air is first purified by the filter component and then enters the conveying component, then is pressurized by the turbine fan, and finally transported into the civil defense project through the guide plate and the air outlet port via the corrugated steel pipe, providing a clean ventilation environment.

[0007] As a preferred embodiment, the filter component includes a primary filter housing fixedly disposed on the upper surface of the frame body and a filter canister disposed on the side of the primary filter housing opposite to the turbine fan.

[0008] By adopting the above technical solution, large particulate matter and dust in the air are first removed through the primary filter box, and then the gas is further purified through the filter canister to ensure that the output air quality meets the usage requirements.

[0009] As a preferred embodiment, the primary filter housing comprises an exhaust gas inlet connected to one side of the primary filter housing, mounting frames evenly arranged in the inner cavity of the primary filter housing, packing blocks arranged in each mounting frame, and an inspection door hinged to the front end of the primary filter housing.

[0010] By adopting the above technical solution, the exhaust gas inlet is responsible for guiding the exhaust gas into the inner cavity of the primary filter box; the mounting frames evenly arranged in the inner cavity of the primary filter box are used to fix the packing blocks, ensuring that the packing blocks can effectively intercept large particulate pollutants in the exhaust gas; the packing blocks in each mounting frame can capture and block large particulate impurities such as dust and fibers in the exhaust gas; the inspection door allows maintenance personnel to inspect and maintain the inside of the primary filter box without shutting down the equipment, ensuring that the equipment can operate continuously and efficiently.

[0011] As a preferred embodiment, the mounting frame is slidably connected to the primary filter housing, and the packing block is configured as a detachable structure, wherein the packing block is configured as G4 grade glass fiber filter material.

[0012] By adopting the above technical solution, the mounting frame slides within the pre-filter housing, facilitating the removal and replacement of the packing blocks filled with G4-grade glass fiber filter media as needed. The packing blocks feature a detachable design, ensuring convenient replacement of the filter media without damaging the overall structure, thereby extending the service life of the entire pre-filter system. The pre-filter housing, as part of the overall system, provides a stable and reliable mounting platform, guaranteeing the correct positioning of the packing blocks during system operation.

[0013] As a preferred embodiment, the filter canister includes an inspection cover plate disposed on its upper end face, a chemical adsorption agent unit uniformly disposed therein, an air inlet port disposed on one end of the filter canister opposite to the turbine fan, and a fixing clamp disposed between the filter canister and the frame body.

[0014] By adopting the above technical solution, an inspection cover is located on the upper surface of the filter canister, providing a convenient passage when the filter media or chemical adsorption agent needs to be replaced or repaired. The chemical adsorption agent units are evenly arranged within the filter canister, using chemical adsorption materials to effectively adsorb and filter harmful toxic gas components from the air, thereby purifying the air. The fixing clamps are used to securely fix the filter canister to the frame body, ensuring stable operation and facilitating overall installation and disassembly.

[0015] As a preferred embodiment, the conveying component includes an exhaust port connected to one side of the primary filter housing, a control valve disposed on the exhaust port, and a controller electrically connected to the control valve. The exhaust port is configured as a three-way pipe, with one end of the straight end of the exhaust port connected to the primary filter housing and the other end of the straight end of the exhaust port connected to the filter canister. The vertical end of the exhaust port is positioned relative to the outside.

[0016] By adopting the above technical solution, the conveying component includes an exhaust port connected to the pre-filter housing and a control valve installed on the exhaust port. The exhaust port is designed as a three-way pipe, with one straight end connected to the pre-filter housing and the other end connected to the filter canister, while the vertical end is positioned relative to the outside. The control valve is used to regulate airflow. The pre-filter housing is used for preliminary filtration of large particles and some fine particles in the air; the filter canister is specifically used to remove harmful gases and toxins from the air; the exhaust port, as the connecting channel between the two, is designed as a three-way pipe, allowing air to flow directly from the pre-filter housing to the filter canister for comprehensive filtration, or it can be directly connected to the outside air through the vertical end of the exhaust port for direct airflow.

[0017] As a preferred embodiment, the air inlet port is connected to the air inlet of the turbine fan, and a sealing ring is provided at the connection between the air inlet port and the air inlet.

[0018] By adopting the above technical solution, the air purified by the filter canister enters the turbine fan through the air inlet. After passing through the sealing ring to ensure no leakage, the turbine fan generates airflow by high-speed rotation, compressing or transporting the air, thereby optimizing the airflow and efficiently transmitting it into the civil defense project.

[0019] As a preferred embodiment, the impeller of the turbine fan is a backward-curved aluminum alloy centrifugal impeller with a diameter of 450mm, and the drive motor of the turbine fan is a permanent magnet synchronous motor with an IP55 protection rating.

[0020] By adopting the above technical solutions, the impeller of this turbine fan can effectively generate and accelerate airflow during gas flow, increasing the fan's air volume and pressure. Meanwhile, the aluminum alloy material provides it with good corrosion resistance and heat dissipation performance, improving the fan's stability and service life. The IP55 protection-rated permanent magnet synchronous motor ensures the fan's normal operation and high reliability in harsh environments such as dusty and humid conditions. The high efficiency and low energy consumption of the permanent magnet synchronous motor allow the fan to maintain high efficiency even under high loads, reducing power consumption and maintenance costs.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] 1. The frame body supports the entire equipment and maintains its stability; casters are installed at the four corners of the frame body to facilitate the movement and position adjustment of the equipment;

[0023] 2. The filter components are used to filter the air, remove dust and impurities, and ensure ventilation quality; the turbine fan is responsible for providing power to pressurize and deliver the filtered air into the civil defense project.

[0024] 3. The conveying component connects the filter component and the turbine fan, and is used to guide the airflow to the turbine fan; the air outlet port allows the pressurized clean air to be discharged, while the baffle plate guides the airflow in the inner cavity of the air outlet port to ensure smooth airflow;

[0025] 4. Corrugated steel pipes deliver clean air into the civil defense project. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of the overall structure of the ventilation equipment used in the applicant's civil defense project;

[0027] Figure 2 It is the ventilation equipment used in the applicant's civil defense engineering. Figure 1 Another structural diagram from a different perspective;

[0028] Figure 3It is the ventilation equipment used in the applicant's civil defense engineering. Figure 2 A structural schematic diagram of the enlarged view at point A;

[0029] Figure 4 This is a structural schematic diagram of the primary filter box in the ventilation equipment used in the applicant's civil defense engineering.

[0030] Figure 5 This is a schematic diagram of the packing block in the primary filter box of the ventilation equipment used in the applicant's civil defense engineering.

[0031] Explanation of reference numerals in the attached drawings: 100, controller; 1, frame body; 10, casters; 2, turbine fan; 21, exhaust port; 211, guide vane; 3, primary filter housing; 30, inspection door; 31, exhaust gas inlet; 32, exhaust port; 321, control valve; 33, packing block; 331, mounting frame; 4, filter canister; 40, fixing clamp; 41, inspection cover; 42, air inlet. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Please see Figures 1 to 5 This application discloses a ventilation device for civil defense projects. It includes a frame body 1, casters 10 respectively located at the four corners of the lower end face of the frame body 1, a filter component fixedly mounted on one side of the frame body 1, a turbine fan 2 connected to the air outlet of the filter component, a conveying component located between the air inlet of the turbine fan 2 and the filter component, an air outlet port 21 connected to the air outlet of the turbine fan 2, and a guide plate 211 located inside the air outlet port 21. The air outlet port 21 is externally connected to a corrugated steel pipe for air delivery into the project. Air is first purified by the filter component before entering the conveying component, then pressurized by the turbine fan 2, and finally delivered into the civil defense project through the guide plate 211 and the air outlet port 21 via the corrugated steel pipe, providing a clean ventilation environment.

[0034] Please refer to the details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The filtration system includes a pre-filter housing 3 fixedly mounted on the upper surface of the frame body 1 and a filter canister 4 located on the side of the pre-filter housing 3 opposite to the turbine fan 2. The air first passes through the pre-filter housing 3 to remove large particles and dust, and then passes through the filter canister 4 for further purification, ensuring that the output air quality meets usage requirements. The overall working principle is as follows: air first passes through the pre-filter housing 3 to remove large particles and dust, and then is guided to the filter canister 4, where harmful gases and toxic substances are removed, ultimately resulting in purified air.

[0035] Please refer to the details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The primary filter housing 3 consists of an exhaust gas inlet 31 connected to one side of the primary filter housing 3, mounting frames 331 evenly distributed inside the primary filter housing 3, packing blocks 33 disposed in each mounting frame 331, and an inspection door 30 hinged to the front end of the primary filter housing 3. The exhaust gas inlet 31 guides the exhaust gas into the interior of the primary filter housing 3; the mounting frames 331 evenly distributed inside the primary filter housing 3 are used to fix the packing blocks 33, ensuring that the packing blocks 33 can effectively intercept large particulate pollutants in the exhaust gas; the packing blocks 33 in each mounting frame 331 can capture and block large particulate impurities such as dust and fibers in the exhaust gas; the inspection door 30 allows maintenance personnel to inspect and maintain the interior of the primary filter housing 3 without shutting down the equipment, ensuring that the equipment can operate continuously and efficiently. The working principle is as follows: exhaust gas enters the primary filter box 3 through the exhaust gas inlet 31, and passes through the packing blocks 33 in each mounting frame 331 in sequence. Large particulate pollutants are effectively intercepted and adsorbed by the packing blocks 33, thereby initially purifying the exhaust gas and achieving the purpose of cleaning the air.

[0036] Please refer to the details. Figure 4 and Figure 5 The mounting frame 331 is slidably connected to the pre-filter housing 3, and the packing block 33 is designed as a detachable structure. The packing block 33 is made of G4 grade glass fiber filter media. The mounting frame 331 slides within the inner cavity of the pre-filter housing 3, facilitating the removal and replacement of the packing block 33 filled with G4 grade glass fiber filter media as needed. The detachable design of the packing block 33 ensures convenient replacement of the filter media without damaging the overall structure, thereby extending the service life of the entire pre-filter system. As part of the whole system, the pre-filter housing 3 provides a stable and reliable mounting platform, ensuring the correct position of the packing block 33 during system operation. The G4 grade glass fiber filter media has the ability to intercept particles ≥5μm, effectively improving the filtration efficiency of the system. Through the sliding connection of the mounting frame 331 and the detachable design of the packing block 33, the entire system meets the requirements of high-efficiency filtration while possessing good maintenance convenience, enabling quick and easy replacement of filter media and ensuring long-term stable operation of the system.

[0037] Please refer to the details. Figure 1 , Figure 2 and Figure 3The filter canister 4 comprises an inspection cover 41 on its upper surface, chemical adsorption agent units evenly arranged within it, an air inlet 42 at the end of the filter canister 4 opposite to the turbine fan 2, and a fixing clamp 40 between the filter canister 4 and the frame body 1. The inspection cover 41, located on the upper surface of the filter canister 4, provides a convenient passage when the filter media or chemical adsorption agent needs to be replaced or repaired. The chemical adsorption agent units, evenly arranged within the filter canister 4, utilize chemical adsorption materials to effectively adsorb and filter harmful toxic gas components in the air, thereby purifying the air. The fixing clamp 40 securely fixes the filter canister 4 to the frame body 1, ensuring stable operation and facilitating overall installation and disassembly. When air enters the filter canister 4 through the air inlet 42, it first contacts the chemical adsorption agent units, where harmful gases are adsorbed and filtered. The purified air is then discharged through the filter canister 4, effectively purifying harmful components in the air and ensuring a safe and healthy operating environment.

[0038] Please refer to the details. Figure 1 and Figure 2 The conveying component includes an exhaust port 32 connected to one side of the primary filter housing 3, a control valve 321 disposed on the exhaust port 32, and a controller 100 electrically connected to the control valve 321. The exhaust port 32 is configured as a three-way pipe, with one straight end connected to the primary filter housing 3 and the other straight end connected to the filter canister 4. The vertical end of the exhaust port 32 is positioned relative to the outside. The control valve 321 is used to regulate airflow. The primary filter housing 3 is used for preliminary filtration of large particles and some fine particles in the air; the filter canister 4 is specifically used to remove harmful gases and toxins from the air; the exhaust port 32 serves as the connecting channel between the two and is designed as a three-way pipe, allowing air to flow directly from the primary filter housing 3 to the filter canister 4 for comprehensive filtration, or it can be directly connected to the outside air through the vertical end of the exhaust port 32 for direct airflow. Depending on actual usage requirements, by adjusting the state of the control valve 321, the air filtration path can be flexibly selected, thereby achieving series filtration between the filter canister 4 and the primary filter housing 3, or direct connection to the outside air, to optimize the air filtration effect.

[0039] Please refer to the details. Figure 2The air inlet port 42 is connected to the air inlet of the turbine fan 2, and a sealing ring is provided at the connection between the air inlet port 42 and the air inlet. The air purified by the filter canister 4 enters the turbine fan 2 through the air inlet port 42. After passing through the sealing ring to ensure no leakage, the turbine fan 2 then uses high-speed rotation to generate airflow, compressing or transporting the air, thereby optimizing the airflow and efficiently transmitting it to the interior of the civil defense project.

[0040] Please refer to the details. Figure 1 The impeller of turbine fan 2 is a backward-curved aluminum alloy centrifugal impeller with a diameter of 450mm. The drive motor of turbine fan 2 is an IP55 protection-rated permanent magnet synchronous motor. This impeller effectively generates and accelerates airflow during gas flow, increasing the fan's air volume and pressure. The aluminum alloy material provides good corrosion resistance and heat dissipation, improving the fan's stability and service life. The IP55 protection-rated permanent magnet synchronous motor ensures normal operation and high reliability of the fan in harsh environments such as dusty and humid conditions. The high efficiency and low energy consumption of the permanent magnet synchronous motor allow the fan to maintain high efficiency even under high loads, reducing power consumption and maintenance costs.

[0041] The implementation principle of a ventilation device for civil defense engineering in this application embodiment is as follows: When in use, the turbine fan 2 starts to form a negative pressure state. The exhaust gas enters the primary filter box 3 through the exhaust gas inlet 31 and passes through the packing blocks 33 in each mounting frame 331 in sequence. Large particulate pollutants are effectively intercepted and adsorbed by the packing blocks 33, thereby initially purifying the exhaust gas and achieving the purpose of cleaning the air. When the air enters the filter canister 4 through the air inlet 42, it first comes into contact with the chemical adsorption agent unit, where the harmful gases are adsorbed and filtered. The purified air is then discharged through the filter canister 4. The air purified by the filter canister 4 enters the turbine fan 2 through the air inlet 42. After passing through the sealing ring to ensure no leakage, the turbine fan 2 then uses high-speed rotation to generate airflow, compressing or transporting the air, thereby optimizing the airflow and efficiently transmitting it to the interior of the civil defense engineering.

[0042] In this process, the exhaust port 32 is designed as a three-way pipe, which allows air to flow directly from the pre-filter housing 3 to the filter canister 4 for comprehensive filtration via the control valve 321, or it can be directly connected to the outside air through the vertical end of the exhaust port 32 for direct airflow. Depending on actual usage requirements, by adjusting the state of the control valve 321, the air filtration path can be flexibly selected, thereby achieving series filtration between the filter canister 4 and the pre-filter housing 3, or direct connection to the outside air, to optimize the air filtration effect.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ventilation device for civil defense engineering, characterized in that: The system includes a frame body (1), movable wheels (10) respectively located at the four corners of the lower end face of the frame body (1), a filter component fixedly installed on one side of the frame body (1), a turbine fan (2) connected to the air outlet of the filter component, a conveying component installed between the air inlet of the turbine fan (2) and the filter component, an air outlet port (21) connected to the air outlet of the turbine fan (2), and a guide plate (211) installed in the inner cavity of the air outlet port (21). The air outlet port (21) is externally connected to a corrugated steel pipe to transport the material to the interior of the project.

2. A ventilation device for civil defense engineering according to claim 1, characterized in that: The filter components include a primary filter box (3) fixedly installed on the upper surface of the frame body (1) and a filter canister (4) installed on the side of the primary filter box (3) relative to the turbine fan (2).

3. A ventilation device for civil defense engineering according to claim 2, characterized in that: The primary filter box (3) is composed of an exhaust gas inlet (31) connected to one side of the primary filter box (3), mounting frames (331) evenly arranged in the inner cavity of the primary filter box (3), packing blocks (33) arranged in each mounting frame (331), and maintenance door (30) hinged to the front end of the primary filter box (3).

4. A ventilation device for civil defense engineering according to claim 3, characterized in that: The mounting frame (331) is slidably connected to the primary filter box (3), and the packing block (33) is configured as a detachable structure, and the packing block (33) is configured as G4 grade glass fiber filter material.

5. A ventilation device for civil defense engineering according to claim 4, characterized in that: The filter canister (4) comprises an inspection cover (41) disposed on its upper end face, a chemical adsorption agent unit evenly disposed therein, an air inlet (42) disposed on one end of the filter canister (4) relative to the turbine fan (2), and a fixing clamp (40) disposed between the filter canister (4) and the frame body (1).

6. A ventilation device for civil defense engineering according to claim 5, characterized in that: The conveying component includes an exhaust port (32) connected to one side of the primary filter housing (3), a control valve (321) provided on the exhaust port (32), and a controller (100) electrically connected to the control valve (321). The exhaust port (32) is configured as a three-way pipe. One end of the straight end of the exhaust port (32) is connected to the primary filter housing (3), and the other end of the straight end of the exhaust port (32) is connected to the filter canister (4). The vertical end of the exhaust port (32) is positioned relative to the outside.

7. A ventilation device for civil defense engineering according to claim 6, characterized in that: The air inlet port (42) is connected to the air inlet of the turbine fan (2), and a sealing ring is set at the connection between the air inlet port (42) and the air inlet.

8. A ventilation device for civil defense engineering according to claim 7, characterized in that: The impeller of the turbine fan (2) is a backward-curved aluminum alloy centrifugal impeller with a diameter of 450mm. The drive motor of the turbine fan (2) is a permanent magnet synchronous motor with an IP55 protection rating.

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