Large-air-volume low-resistance side-air-outlet broad-spectrum protection poison filter

Abstract

A large-air-volume low-resistance side-air-out broad-spectrum protection poison filter comprises a shell, a large poison filtering unit, a middle poison filtering unit and a small poison filtering unit, the shell is of a cylindrical structure, the bottom end face of the shell is of a closed structure, an air inlet plate is installed on the top end face of the shell, the end of the air inlet plate is connected with a cover plate, an air outlet is formed in the side of the shell, and the middle poison filtering unit and the small poison filtering unit are arranged in the shell. According to the utility model, a brand-new air inlet and outlet structure is adopted, and is matched with the multiple layers of poison filtering units, so that toxic components in air can be quickly filtered, and the comprehensive protection capability on contaminated air is improved.

Description

Technical Field

[0001] The utility model relates to the field of gas filtering and ventilation system protection, in particular to a large-air-volume, low-resistance, side-outlet, broad-spectrum protective gas filter. Background Art

[0002] With the development of modern industry and advancements in technology, the use of various toxic and hazardous gases and classic poisons is becoming increasingly widespread. These substances are not only present in industrial production environments, but may also appear in special work environments such as military facilities or emergency rescue sites. Therefore, it is particularly important to develop efficient, reliable air purification devices that can handle a variety of toxic and hazardous substances.

[0003] The air purification devices currently on the market have the following main problems in actual use:

[0004] 1. Most existing air purification devices are designed with low ventilation capacity, making them difficult to adapt to application scenarios that require large air volume processing, especially in high-density crowd areas or large industrial sites. The ventilation capacity of existing equipment is stretched;

[0005] 2. Traditional air purification equipment usually generates large air resistance when handling large air volumes, which not only increases the operating cost of the system, but also limits its application in environments that require low energy consumption;

[0006] 3. Many existing air purification devices are only designed for one or several specific toxic and hazardous substances and cannot effectively deal with a variety of pollutants including classic toxic agents and industrial toxic and hazardous gases, resulting in limited protection effects in actual applications;

[0007] In view of the above problems, the market is in urgent need of a new air purification device that can handle large air volumes, has low resistance characteristics, and can achieve broad-spectrum protection functions. The present utility model aims to provide such a large-volume, low-resistance, side-discharge, broad-spectrum protection gas filter to overcome the shortcomings of the existing technology. Utility Model Content

[0008] In view of the technical problems existing in the background technology, the utility model provides a large-volume, low-resistance side-outlet, broad-spectrum protective gas filter, which adopts a new air inlet and outlet structure and cooperates with a multi-layer gas filtering unit to quickly filter toxic components in the air and improve the comprehensive protection capability against contaminated air.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] A large air volume, low resistance, side-outlet, broad-spectrum protective gas filter comprises a shell, a large gas filter unit, a medium gas filter unit and a small gas filter unit. The shell is a cylindrical structure, the bottom end face of the shell is a closed structure, an air inlet plate is installed at the top end face of the shell, the end of the air inlet plate is connected to a cover plate, an air outlet is opened on the side of the shell, and a large gas filter unit, a medium gas filter unit and a small gas filter unit are installed inside the shell.

[0011] In the preferred solution, an air inlet baffle is installed inside the shell, and the air inlet baffle is arranged at the end of the shell. The air inlet baffle is a circular aluminum alloy plate with multiple arc-shaped air inlets. The large poison filter unit, the medium poison filter unit and the small poison filter unit are vertically connected to the lower end face of the air inlet baffle and connected to the air inlet. The large poison filter unit and the medium poison filter unit share the air inlet duct, and the small poison filter unit uses the air inlet duct alone.

[0012] In the preferred embodiment, the large poison filter unit, the medium poison filter unit and the small poison filter unit are coaxially arranged and socketed in sequence. The large poison filter unit and the medium poison filter unit are longitudinally cut at a specified angle to form a non-closed-loop cylindrical structure, and the direction of the cut is toward the air outlet on the side of the shell. The small poison filter unit forms an annular cylindrical structure. The medium poison filter unit and the small poison filter unit share the air outlet and are connected to the air outlet, and the large poison filter unit uses the air outlet alone and is connected to the air outlet.

[0013] In the preferred solution, the large gas filter unit, the medium gas filter unit and the small gas filter include an upper flange and a lower flange, which are arranged at both ends, a pull rod is directly and vertically connected between the upper flange and the lower flange, a central porous cylindrical plate, an inner porous cylindrical plate and an outer porous cylindrical plate are vertically connected between the upper flange and the lower flange, and a gas filter pressure plate is installed at the upper end face of the upper flange.

[0014] In the preferred embodiment, the central porous cylindrical plate is arranged at the innermost side, the inner porous cylindrical plate is arranged in the middle, and the outer porous cylindrical plate is arranged at the outermost side. The inner carbon layer cavity is formed between the central porous cylindrical plate and the inner porous cylindrical plate, and the outer carbon layer cavity is formed between the inner porous cylindrical plate and the outer porous cylindrical plate.

[0015] In the preferred embodiment, the inner carbon layer cavity is filled with a first adsorption material, and the outer carbon layer cavity is filled with a second adsorption material; the first adsorption material is a granular special impregnated carbon formed by loading copper, alkali metals and special auxiliary catalytic active components on an activated carbon carrier and activated at high temperature; the second adsorption material is a granular special impregnated carbon formed by loading chromium-free copper and zinc catalytic active components on an activated carbon carrier and activated at high temperature.

[0016] In the preferred solution, a metal mesh is laid between the large poison filtering unit, the medium poison filtering unit and the small poison filtering unit, and a carbon layer blocking plate is welded at the incision of the large poison filtering unit and the medium poison filtering unit.

[0017] In a preferred solution, the pull rod is a double-headed long screw with threads at both ends. Clamping nuts are installed at both ends of the pull rod to clamp and fix the lower flange, the upper flange and the air inlet baffle.

[0018] In the preferred solution, the operating principle of the device is as follows:

[0019] S1. Toxic air enters the housing through the air inlet on the air inlet plate;

[0020] S2. Toxic air is diverted through the air inlet baffle. The diverted toxic air enters the large and medium filtration units through the outer air inlet, and enters the small filtration unit alone through the inner air inlet.

[0021] S3, the large filter unit, the medium filter unit and the small filter unit purify and filter the toxic gas through the first adsorption material and the second adsorption material inside;

[0022] S4. The purified air is discharged to the air outlet through the air outlet duct shared by the medium and small air filter units, while the large air filter unit uses a separate air outlet duct to discharge the purified air to the air outlet.

[0023] A high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter with the following advantages in practical use:

[0024] 1. This gas filter adopts a new air inlet and outlet structure and is designed with a large ventilation volume. It can be installed in a gas filter ventilation system that needs to handle large air volumes. It is especially suitable for air purification needs in large industrial sites or crowded areas.

[0025] 2. The gas filter adopts a side air outlet structure. While ensuring a rated ventilation volume of 1000m³ / h, the air resistance does not exceed 250Pa, which significantly reduces the power energy consumption of the ventilation system and reduces the equipment operating costs;

[0026] 3. The filter is filled with protective materials against classic poisons and industrial toxic and harmful gases, which can achieve broad-spectrum protection, improve the comprehensive protection ability against contaminated air, and ensure the safety of the working environment;

[0027] 4. The gas filter adopts a cylindrical hollow side-outlet aluminum alloy box structure, which reduces the equipment's footprint. At the same time, the flange connection simplifies the installation process and facilitates operation and maintenance.

[0028] 5. The large and medium-sized filtration units feature a longitudinally sectioned, fan-shaped design, ensuring smooth airflow. They are directly connected to the side air outlets, improving air flow efficiency. The classic agent and industrial toxic gas adsorbent materials within the filtration units have undergone high-temperature activation treatment, resulting in strong adsorption capacity and a long service life, ensuring at least three hours of anti-toxicity protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0030] Figure 2 This is a side view of the overall structure of the utility model;

[0031] Figure 3 BB is a cross-sectional view and exploded view of the internal structure of the present invention;

[0032] Figure 4 This is the AA cross-sectional view and exploded view of the internal structure of the utility model;

[0033] Figure 5 This is a structural diagram of the large, medium and small poison filtering units of the utility model.

[0034] In the figure: shell 1, air inlet baffle 2, air inlet plate body 3, cover plate 4, pull rod 5, air outlet 6, large poison filter unit 7, medium poison filter unit 8, small poison filter unit 9, carbon layer blocking plate 10, metal mesh 11, lower flange 12, upper flange 13, poison filter pressure plate 14, central porous cylindrical plate 15, inner porous cylindrical plate 16, outer porous cylindrical plate 17, first adsorption material 18, second adsorption material 19. DETAILED DESCRIPTION

[0035] like Figure 1 and Figure 2 As shown, a large air volume, low resistance, side-outlet, broad-spectrum protective gas filter comprises a housing 1, a large gas filter unit 7, a medium gas filter unit 8, and a small gas filter unit 9. The housing 1 is a cylindrical structure, the bottom end face of the housing 1 is a closed structure, and an air inlet plate 3 is installed at the top end face of the housing 1. The end of the air inlet plate 3 is connected to a cover plate 4.

[0036] An air outlet 6 is provided on the side of the shell 1, and a large poison filter unit 7, a medium poison filter unit 8 and a small poison filter unit 9 are installed inside the shell 1; an air inlet baffle 2 is installed inside the shell 1, and the air inlet baffle 2 is provided at the end of the shell 1. The air inlet baffle 2 is a circular aluminum alloy plate with multiple arc-shaped air inlets. The large poison filter unit 7, the medium poison filter unit 8 and the small poison filter unit 9 are vertically connected to the lower end surface of the air inlet baffle 2 and connected to the air inlet. The large poison filter unit 7 and the medium poison filter unit 8 share the air inlet duct, and the small poison filter unit 9 uses the air inlet duct alone;

[0037] The poisonous air contaminated by the poison agent in the poison filtering ventilation system passes through the air inlet of the poison filter air inlet plate body 3, is distributed by the air inlet baffle 2, is adsorbed and purified by the three poison filtering units into clean and non-toxic air, and finally enters the protective space through the air outlet 6 of the shell 1; inside the poison filter shell, the large poison filtering unit 7 and the medium poison filtering unit 6 share an air inlet duct, and the small poison filtering unit 9 takes in air independently; the medium poison filtering unit 8 and the small poison filtering unit 9 share an air outlet duct, and the large poison filtering unit 7 discharges air independently, and then is collected and discharged through the air outlet of the poison filter, and the air outlet of the large poison filtering unit 7 and the medium poison filtering unit 6 of the poison filter are 50 degrees apart;

[0038] The gas filter is designed with a rated ventilation volume of 1000m3 / h, a resistance of no more than 250Pa, a weight of no more than 280kg, and an anti-gas time of no less than 3 hours. The gas filter shell adopts an axial air inlet and outlet cylindrical structure, and the overall dimensions (diameter × height) are: diameter 0.8m × height 1.4m (excluding the protruding part of the side air outlet pipe). The three gas filter units of small gas filter unit 9, medium gas filter unit 8, and large gas filter unit 7 are cylindrical structures. The gas filter units are filled with classic poison agent protection materials and industrial toxic and harmful gas protection materials to achieve broad-spectrum protection against classic poison agents and industrial toxic and harmful gases. They are flange-connected to the gas filter ventilation system, and the operation is simple and convenient.

[0039] The preferred solution is Figure 3 and Figure 4 As shown, the large poison filter unit 7, the medium poison filter unit 8 and the small poison filter unit 9 are coaxially arranged and socketed in sequence. The large poison filter unit 7 and the medium poison filter unit 8 are longitudinally cut at a specified angle to form a non-closed-loop cylindrical structure, and the direction of the cut is toward the air outlet 6 on the side of the shell 1. The small poison filter unit 9 forms an annular cylindrical structure. The medium poison filter unit 8 and the small poison filter unit 9 share the air outlet duct and are connected to the air outlet 6, and the large poison filter unit 7 uses the air outlet duct alone and is connected to the air outlet 6.

[0040] The preferred solution is Figure 3 and Figure 4 As shown, the large gas filter unit 7, the medium gas filter unit 8 and the small gas filter include an upper flange 13 and a lower flange 12, which are arranged at both ends. A pull rod 5 is directly and vertically connected between the upper flange 13 and the lower flange 12, and a central porous cylindrical plate 15, an inner porous cylindrical plate 16 and an outer porous cylindrical plate 17 are vertically connected between the upper flange 13 and the lower flange 12. A gas filter pressure plate 14 is installed at the upper end surface of the upper flange 13.

[0041] The preferred solution is Figure 5As shown, the central porous cylindrical plate 15 is arranged at the innermost side, the inner porous cylindrical plate 16 is arranged in the middle, and the outer porous cylindrical plate 17 is arranged at the outermost side. An inner carbon layer cavity is formed between the central porous cylindrical plate 15 and the inner porous cylindrical plate 16, and an outer carbon layer cavity is formed between the inner porous cylindrical plate 16 and the outer porous cylindrical plate 17. The thickness of the inner carbon layer cavity is usually set at about 4.3 cm, and the thickness of the outer carbon layer cavity is usually set at about 3.5 cm.

[0042] The preferred solution is Figure 5 As shown, the inner carbon layer cavity is filled with a first adsorption material 18, and the outer carbon layer cavity is filled with a second adsorption material 19; the first adsorption material 18 is an industrial toxic gas adsorption material, which is a granular special impregnated carbon made by loading copper, alkali metals and special additives on an activated carbon carrier and activating it at high temperature;

[0043] The second adsorption material 19 is a classic poison adsorption material, which is a granular special impregnated carbon made by loading chromium-free copper and zinc catalytic active components on an activated carbon carrier and activated at high temperature.

[0044] The preferred solution is Figure 4 As shown, a metal mesh 11 is laid between the large filter unit 7, the medium filter unit 8 and the small filter unit 9 to provide support, and a carbon layer blocking plate 10 is welded at the incision of the large filter unit 7 and the medium filter unit 8 to prevent the adsorption material from leaking.

[0045] The preferred solution is Figure 4 As shown, the pull rod 5 is a double-headed long screw with threads at both ends. Clamping nuts are installed at both ends of the pull rod 5 to clamp and fix the lower flange 12, the upper flange 13 and the air inlet baffle 2.

Claims

1. A large air volume, low resistance, side-outlet, broad-spectrum protective gas filter, comprising a housing (1), a large gas filter unit (7), a medium gas filter unit (8), and a small gas filter unit (9), characterized in that: The shell (1) is a cylindrical structure, the bottom end face of the shell (1) is a closed structure, an air inlet plate (3) is installed at the top end face of the shell (1), the end of the air inlet plate (3) is connected to a cover plate (4), an air outlet (6) is opened on the side of the shell (1), and a large poison filter unit (7), a medium poison filter unit (8) and a small poison filter unit (9) are installed inside the shell (1).

2. The high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter according to claim 1, characterized in that: An air inlet baffle (2) is installed inside the shell (1), and the air inlet baffle (2) is arranged at the end of the shell (1). The air inlet baffle (2) is a circular aluminum alloy plate with a plurality of arc-shaped air inlets. The large air filter unit (7), the medium air filter unit (8) and the small air filter unit (9) are vertically connected to the lower end surface of the air inlet baffle (2) and communicate with the air inlet. The large air filter unit (7) and the medium air filter unit (8) share an air inlet duct, and the small air filter unit (9) uses an air inlet duct alone.

3. The high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter according to claim 2, characterized in that: The large poison filter unit (7), the medium poison filter unit (8) and the small poison filter unit (9) are coaxially arranged and sleeved in sequence. The large poison filter unit (7) and the medium poison filter unit (8) are longitudinally cut at a predetermined angle to form a non-closed-loop cylindrical structure, wherein the cut direction faces the air outlet (6) on the side of the shell (1). The small poison filter unit (9) forms an annular cylindrical structure. The medium poison filter unit (8) and the small poison filter unit (9) share an air outlet and are connected to the air outlet (6). The large poison filter unit (7) uses an air outlet alone and is connected to the air outlet (6).

4. The high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter according to claim 2, characterized in that: The large gas filter unit (7), the medium gas filter unit (8) and the small gas filter unit (9) include an upper flange (13) and a lower flange (12), wherein the upper flange (13) and the lower flange (12) are arranged at both ends, a pull rod (5) is directly and vertically connected between the upper flange (13) and the lower flange (12), a central porous cylindrical plate (15), an inner porous cylindrical plate (16) and an outer porous cylindrical plate (17) are vertically connected between the upper flange (13) and the lower flange (12), and a gas filter pressure plate (14) is installed at the upper end surface of the upper flange (13).

5. The high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter according to claim 4, characterized in that: The central porous cylindrical plate (15) is arranged at the innermost side, the inner porous cylindrical plate (16) is arranged in the middle, and the outer porous cylindrical plate (17) is arranged at the outermost side. An inner carbon layer cavity is formed between the central porous cylindrical plate (15) and the inner porous cylindrical plate (16), and an outer carbon layer cavity is formed between the inner porous cylindrical plate (16) and the outer porous cylindrical plate (17).

6. The high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter according to claim 1, characterized in that: A metal mesh (11) is laid between the large poison filtering unit (7), the medium poison filtering unit (8) and the small poison filtering unit (9), and a carbon layer blocking plate (10) is welded at the cutouts of the large poison filtering unit (7) and the medium poison filtering unit (8).

7. The high-volume, low-resistance, side-outlet, broad-spectrum protective gas filter according to claim 4, characterized in that: The pull rod (5) is a double-headed long screw with threads at both ends. Clamping nuts are installed at both ends of the pull rod (5) to clamp and fix the lower flange (12), the upper flange (13) and the air inlet partition (2).

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