An air filtration device

Abstract

This invention relates to the field of air filtration technology, and more particularly to an air filtration device comprising two filter canisters fixed on a frame. A sealing cap is fixed to the bottom of each filter canister, and a support base is positioned above the sealing cap. A compressed spring is fixed between the support base and the sealing cap. A top plate is also fixed inside each filter canister, and an air inlet is provided through the center of the top plate. A filter element, comprising a metal mesh, is positioned between the top plate and the support base. The filter element includes a metal mesh with evenly distributed air vents. Filter cotton is fixedly surrounding the metal mesh. A water inlet pipe is fixed to each filter canister, and a water spray pipe is also fixed inside each filter canister. The water spray pipe surrounds the filter element and has evenly distributed spray holes. One end of the water inlet pipe is connected to the corresponding water spray pipe, and the other end of each water inlet pipe is connected to a water supply pipe. This device can achieve continuous air supply.

Description

Technical Field

[0001] This invention relates to the field of air filtration technology, and more particularly to an air filtration device. Background Technology

[0002] Air filters are an important device in large-scale oxygen production. Their function is to provide a continuous supply of clean air to the main air compressor. When the air passes through the filter cartridge, due to the combined effects of gravity, inertial diffusion, static electricity, and contact retention, dust in the air will accumulate on the filter element, while the clean air will be sent out through the venturi tube and then out of the air outlet.

[0003] Patent application CN202422227920.9 discloses an air filter element assembly, including a connecting component, a filter element body, and a protective tube. Multiple air inlet pipes are welded through the outer periphery of the connecting component. A permanent magnet is snapped into one side of the connecting component, and the filter element body is located on the other side. A protective tube is inserted into one end of the filter element body, and an electromagnet is snapped into one end of the protective tube. A rotating connecting bracket is snapped into the other end of the protective tube. Multiple air inlet pipes allow connection to multiple filter structures, enabling a single filter element assembly to filter air from multiple locations. However, this type of device requires shutdown and filter element replacement after a period of operation, making continuous use impossible.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an air filtration device.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses an air filtration device comprising two filter canisters fixed on a frame. A sealing cover is fixed to the bottom of each filter canister, and a support base is positioned above the sealing cover. A compressed spring is fixed between the support base and the sealing cover. A top plate is also fixed inside each filter canister, and an air inlet is provided through the center of the top plate. A filter element, comprising a metal mesh, is positioned between the top plate and the support base. The filter element includes a metal mesh with evenly distributed air vents. Filter cotton is fixedly surrounding the metal mesh. A water inlet pipe is fixed to each filter canister. A water spray pipe is also fixed inside each filter canister, surrounding the filter element and having evenly distributed spray holes. One end of the water inlet pipe is connected to a corresponding water spray pipe, and the other end of the water inlet pipe is connected to a water supply pipe. An air outlet pipe with a valve is fixed to the top of each filter canister, and the end of the air outlet pipe is connected to an air supply pipe. An air inlet pipe with a valve is fixed to each filter canister below the top plate, and a drain pipe with a valve is fixed to each sealing cover.

[0008] Preferably, the sealing cap is threadedly connected to the filter canister. When the filter element needs to be replaced, close the valves on the corresponding inlet and outlet pipes, rotate the sealing cap, remove the sealing cap, and then replace the filter element.

[0009] Preferably, the filter element further includes a mesh frame fixed to the outside of the filter cotton. The mesh frame provides external support to the filter cotton, preventing deformation of the filter cotton after washing and thus avoiding any impact on the filtration effect.

[0010] Preferably, an electric heating plate is also fixed inside the filter canister. When the filter cotton is air-dried, the electric heating plate generates heat after being energized, accelerating the evaporation of water from the filter cotton.

[0011] Preferably, a limiting block is also fixed on the sealing cover, and a limiting tube that is slidably connected to the limiting block is also fixed on the support base.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] This device can clean the filter element in one filter tank, and after cleaning one filter element, it can clean the filter element in another filter tank. It can effectively remove dust and dirt from the surface of the filter element, effectively extend the service life of the filter element, and when cleaning or replacing one filter element, it can filter through another filter tank without stopping the machine, thus achieving continuous air supply. Attached Figure Description

[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 for Figure 2 Sectional view at point AA;

[0018] In the diagram: 1. Filter tank; 2. Sealing cap; 3. Drain pipe; 4. Air inlet pipe; 5. Air outlet pipe; 6. Air supply pipe; 7. Water inlet pipe; 8. Water supply pipe; 9. Support base; 10. Spring; 11. Top plate; 12. Air inlet; 13. Filter element; 14. Positioning ring; 15. Water spray pipe; 16. Spray nozzle; 17. Metal mesh; 18. Vent hole; 19. Filter cotton; 20. Mesh frame; 21. Limiting pipe; 22. Limiting block; Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, this embodiment discloses an air filtration device, comprising two filter canisters 1 fixed on a frame (not shown). A sealing cover 2 is fixed to the bottom of each filter canister 1, and a support base 9 is disposed above the sealing cover 2. A compressed spring 10 is fixed between the support base 9 and the sealing cover 2. A top plate 11 is also fixed inside the filter canister 1. An air inlet 12 penetrating the top plate 11 is disposed in the middle of the top plate 11. A filter element 13 is disposed between the top plate 11 and the support base 9. The filter element 13 includes a metal mesh 17, on which air vents 19 are evenly distributed. The filter canister 1 is surrounded by filter cotton 19. A water inlet pipe 7 is fixed on each filter canister 1. A water spray pipe 15 is also fixed inside the filter canister 1. The water spray pipe 15 is arranged around the filter element 13. Spray holes 16 are evenly arranged on the water spray pipe 15. One end of the water inlet pipe 7 is connected to the corresponding position of the water spray pipe 15. The other end of the water inlet pipe 7 is connected to the water supply pipe 8. A valved air outlet pipe 5 is fixed on the top of the filter canister 1. The end of the air outlet pipe 5 is connected to the air supply pipe 6. A valved air inlet pipe 4 is fixed on the filter canister 1 below the top plate 11. A valved drain pipe 3 is fixed on the sealing cover 2. When the device is in use, gas enters the filter tank 1 through the inlet pipe 4. After being filtered by the filter cotton 19 on the filter element 13, the gas is discharged through the outlet pipe 5. Dust in the air is blocked by the filter cotton 19 and remains on it. When the filter cotton 19 needs to be cleaned, close the valve on the inlet pipe 4 of the corresponding filter tank 1, close the valve on the outlet pipe 5 at the top of the corresponding filter tank 1, open the valve on the drain pipe 3 of the corresponding filter tank 1, and open the valve on the inlet pipe 7 of the corresponding filter tank 1. After the water pump draws clean water, the clean water is discharged into the corresponding spray pipe 15 through the water supply pipe 8 and then through the inlet pipe 7. The clean water is sprayed out through the spray hole 16 on the spray pipe 15 and sprays onto the filter cotton 19. The clean water flows downward on the filter cotton 19. When the clean water flows, it carries the dust attached to the surface of the filter cotton 19 with it. The dust is discharged with the clean water from the drain pipe 3. After rinsing the filter cotton 19 with clean water for a period of time, close the valve on the water inlet pipe 7 and open the valve on the corresponding air outlet pipe 5. The air filtered by the other filter canister 1 enters the filter canister 1 after rinsing the filter cotton 19. The filtered air dries the filter cotton 19, and the moisture is discharged through the drain pipe 3. After the filter cotton 19 has been dried for a period of time, close the valve on the drain pipe 3 and open the valve on the corresponding air inlet pipe 4 to clean the filter element 13 in one filter canister 1. After cleaning one filter element 13, clean the filter element 13 in the other filter canister 1. This can effectively clean the dust and dirt on the surface of the filter element 13, effectively extend the service life of the filter element 13, and when cleaning or replacing one filter element 13, it is filtered through the other filter canister 1 without stopping the machine, so as to achieve continuous air supply.

[0022] The sealing cap 2 is threadedly connected to the filter canister 1. When the filter element 13 needs to be replaced, close the valves on the corresponding air inlet pipe 4 and air outlet pipe 5, rotate the sealing cap 2, remove the sealing cap 2, and then replace the filter element 13.

[0023] The top plate 11 is also fixed with a positioning ring 14 that works in conjunction with the metal mesh 17. The positioning ring 14 is engaged within the metal mesh 17 to achieve the positioning and installation of the filter element 13.

[0024] The filter element 13 also includes a mesh frame 20 fixed to the outside of the filter cotton 19. The mesh frame 20 provides external support for the filter cotton 19, preventing the filter cotton 19 from deforming after rinsing and affecting the filtration effect.

[0025] Example 2:

[0026] This embodiment discloses an air filtration device. Based on the structure and principle of Embodiment 1, an electric heating plate is also fixed inside the filter canister 1 of this embodiment. When the filter cotton 19 is air-dried, it is heated by the electric heating plate after being energized, which accelerates the evaporation of water on the filter cotton 19.

[0027] Example 3:

[0028] This embodiment discloses an air filtration device. Based on the structure and principle of Embodiment 1 or Embodiment 2, the sealing cover 2 of this embodiment is further fixed with a limiting block 22, and the support base 9 is further fixed with a limiting tube 21 that is slidably connected to the limiting block 22.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air filtration device, characterized by, The system comprises two filter tanks fixed to a frame. A sealing cap is fixed to the bottom of each filter tank, and a support base is positioned above the sealing cap. A compressed spring is fixed between the support base and the sealing cap. A top plate is also fixed inside each filter tank, and an air inlet is located in the center of the top plate. A filter element, comprising a metal mesh, is positioned between the top plate and the support base. Air vents are evenly distributed on the metal mesh, and filter cotton is fixedly surrounding the metal mesh. A water inlet pipe is fixed to each filter tank. A water spray pipe is also fixed inside each filter tank, surrounding the filter element and evenly distributed with spray holes. One end of the water inlet pipe is connected to a corresponding water spray pipe, and the other end is connected to a water supply pipe. An air outlet pipe with a valve is fixed to the top of each filter tank, and the end of the air outlet pipe is connected to an air supply pipe. An air inlet pipe with a valve is fixed to each filter tank below the top plate, and a drain pipe with a valve is fixed to each sealing cap.

2. The air filtration device of claim 1, wherein: The sealing cap is threadedly connected to the filter tank.

3. The air filtration device of claim 1, wherein: The filter element also includes a mesh frame fixed to the outside of the filter cotton.

4. The air filtration device of claim 1, wherein: An electric heating plate is also fixed inside the filter tank.

5. The air filtration device according to claim 1, characterized in that: The sealing cover is also fixed with a limit block, and the support base is also fixed with a limit tube that is slidably connected to the limit block.

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