An adsorptive filter

Abstract

The utility model provides a kind of adsorption filter, including cylinder, air inlet hole plate, first sealing filter material, activated carbon, second sealing filter material and air outlet hole plate are sequentially placed from left to right in cylinder, the left end of cylinder is provided with first end cover, inlet is provided on first end cover, compression spring is provided between first end cover and air inlet hole plate, the right end of cylinder is provided with second end cover, outlet is provided on second end cover, air outlet hole plate is between the right end of second end cover and cylinder.The utility model is convenient for medium uniform inflow and outflow, avoid activated carbon particles being taken away by medium, while ensuring that activated carbon is compacted.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to an adsorption filter. Background Technology

[0002] Activated carbon adsorption filters adsorb impurities in the medium using activated carbon. However, the following issues may arise during use: 1. How to ensure the medium passes evenly through the activated carbon; 2. Activated carbon is usually granular; how to ensure its compaction while preventing it from being carried away by the medium; 3. The filter cylinder is relatively thin. If the end caps are welded after filling with activated carbon, how to avoid damage to the carbon-based activated carbon caused by the high temperature of welding? However, welding prevents subsequent replacement of the activated carbon; 4. How to conveniently and quickly open and connect the end caps for easy replacement of the activated carbon. Utility Model Content

[0003] This invention proposes an adsorption filter that facilitates uniform inflow and outflow of the medium, prevents activated carbon particles from being carried away by the medium, and ensures that the activated carbon is compressed.

[0004] The technical solution of this utility model is implemented as follows: an adsorption filter includes a cylinder, in which an air inlet plate, a first sealing filter material, activated carbon, a second sealing filter material, and an air outlet plate are arranged sequentially from left to right. A first end cap is provided at the left end of the cylinder, and an inlet is provided on the first end cap. A compression spring is provided between the first end cap and the air inlet plate. A second end cap is provided at the right end of the cylinder, and an outlet is provided on the second end cap. The air outlet plate is located between the second end cap and the right end of the cylinder.

[0005] Furthermore, the second end cap is welded and fixed to the right end of the cylinder. An annular limiting platform is provided inside the second end cap. The air outlet plate is located between the right end of the cylinder and the annular limiting platform. An interval groove is provided inside the second end cap on the right side of the air outlet plate.

[0006] An annular baffle is provided on the air inlet plate. On the one hand, it ensures that the air inlet plate and the cylinder are installed on the same axis. On the other hand, it also provides heat insulation for the welding of the first end cover and the cylinder, reducing the impact of the high temperature of welding on the inside of the cylinder.

[0007] Furthermore, the first end cap and the left end of the cylinder are welded and fixed together.

[0008] Furthermore, an annular baffle is provided on the left side of the air inlet plate, the annular baffle abuts against the inner wall of the cylinder, and the weld between the first end cap and the cylinder corresponds to the annular baffle.

[0009] Furthermore, both the first and second sealing filter media are sound-absorbing fiberglass cotton.

[0010] Furthermore, the first end cap and the cylinder can be opened and connected via a connector.

[0011] Furthermore, the connector includes U-shaped clamping plates evenly distributed circumferentially along the outer side of the cylinder. The side wall of the first end cover is provided with axial opening grooves corresponding to the U-shaped clamping plates. The bottom of the axial opening groove is provided with a circumferential clamping groove, and a limit block is provided on the side of the circumferential clamping groove near the axial opening groove.

[0012] Furthermore, a sealing ring is provided inside the side wall of the first end cap.

[0013] The beneficial effects of this utility model are: This invention facilitates uniform inflow and outflow of the medium through the design of the inlet and outlet plates; prevents activated carbon particles from being carried away by the medium through the design of the first and second sealing filter media; ensures the activated carbon is compressed by the compression spring, thereby ensuring the filtration effect of the medium; at the same time, the first and second sealing filter media also play a role in pressure resistance, preventing the compression spring from damaging the activated carbon particles.

[0014] This invention uses a compression spring to create a gap at the first end cap, thus preventing damage to the coal-based activated carbon when the first end cap is welded and fixed to the cylinder.

[0015] The connector of this utility model has a simple structure and is easy to operate, facilitating the quick installation and opening of the cylinder and the first end cap, thereby making it easier to replace the activated carbon later. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 3 for Figure 2 A magnified view of part A in the image; Figure 4 for Figure 3 Sectional view of BB; Figure 5 This is a schematic diagram of an axially open slot.

[0018] 1. Cylinder body, 2. Inlet plate, 3. First sealing filter material, 4. Activated carbon, 5. Second sealing filter material, 6. Outlet plate, 7. First end cover, 8. Annular partition, 9. Inlet, 10. Compression spring, 11. Second end cover, 12. Annular limiting platform, 13. Spacing groove, 14. Outlet, 15. U-shaped clamping plate, 16. Axial opening groove, 17. Circumferential clamping groove, 18. Limiting block, 19. Sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1 like Figure 1 As shown, an adsorption filter includes a cylindrical body 1. From left to right, the cylindrical body 1 is filled with an inlet plate 2, a first sealing filter material 3, activated carbon 4, a second sealing filter material 5, and an outlet plate 6. Both the first and second sealing filter materials 3 and 5 are sound-absorbing fiberglass cotton. A first end cap 7 is welded to the left end of the cylindrical body 1. An annular partition 8 is provided on the left side of the inlet plate 2. The inlet plate 2 and the annular partition 8 are integrally formed, and the annular partition 8 abuts against the inner wall of the cylindrical body 1. The weld between the first end cap 7 and the cylindrical body 1 corresponds to the annular partition 8. An inlet 9 is welded to the middle of the first end cap 7, and a compression spring 10 is provided between the first end cap 7 and the inlet plate 2.

[0021] A second end cap 11 is welded and fixed to the right end of the cylinder 1. An annular limiting platform 12 is provided inside the second end cap 11. The right end of the cylinder 1 is placed to the left of the annular limiting platform 12. The air outlet plate 6 is located between the right end of the cylinder 1 and the annular limiting platform 12. A spacer groove 13 is provided inside the second end cap 11 on the right side of the air outlet plate 6. An outlet 14 is welded and fixed to the middle of the second end cap 11.

[0022] Assembly method of adsorption filter: Place the air outlet plate 6 inside the annular limiting platform 12 of the second end cover 11, then weld the second end cover 11 and the right end of the cylinder 1 to fix it, fill the cylinder 1 with the second sealing filter material 5, activated carbon 4, first sealing filter material 3, air inlet plate 2 and compression spring 10 in sequence, and then weld the first end cover 7 to the cylinder 1 to fix it.

[0023] Example 2 This embodiment is basically the same as Embodiment 1, except that, as Figure 2-5As shown, the first end cap 7 and the cylinder 1 can be opened and connected by a connector. The connector includes U-shaped clamping plates 15 evenly distributed circumferentially along the outer side of the cylinder 1. The U-shaped clamping plates 15 are fixedly connected to the cylinder 1. The side wall of the first end cap 7 is provided with axial opening slots 16 corresponding to the U-shaped clamping plates 15. The bottom of the axial opening slots 16 is provided with circumferential grooves 17. A limiting block 18 is provided on the side of the circumferential grooves 17 near the axial opening slots 16. The limiting block 18 is an integral structure with the first end cap 7. The first end cap 7 is inserted into the left side of the cylinder 1, so that the U-shaped clamping plates 15 are located in the corresponding axial opening slots 16. Then, the first end cap 7 is rotated so that the U-shaped clamping plates 15 pass over the limiting block 18. Under the action of the compression spring 10, the U-shaped clamping plates 15 are locked in the circumferential grooves 17.

[0024] A sealing ring 19 is fixed inside the side wall of the first end cap 7 to ensure the airtight connection between the first end cap 7 and the cylinder 1. When the activated carbon 4 needs to be replaced, push the first end cap 7 to the right, and then rotate the first end cap 7 in the opposite direction so that the U-shaped retaining plate 15 passes over the limiting block 18. Then, under the action of the compression spring 10, the first end cap 7 is directly detached from the cylinder 1.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adsorption filter, comprising a cylindrical body, characterized in that: The cylinder contains, from left to right, an air inlet plate, a first sealing filter material, activated carbon, a second sealing filter material, and an air outlet plate. A first end cap is located at the left end of the cylinder, with an inlet on the first end cap. A compression spring is installed between the first end cap and the air inlet plate. A second end cap is located at the right end of the cylinder, with an outlet on the second end cap. The air outlet plate is located between the second end cap and the right end of the cylinder.

2. An adsorption filter according to claim 1, characterized in that: The second end cap is welded and fixed to the right end of the cylinder. An annular limiting platform is provided inside the second end cap. The air outlet plate is located between the right end of the cylinder and the annular limiting platform. An interval groove is provided inside the second end cap on the right side of the air outlet plate.

3. An adsorption filter according to claim 1 or 2, characterized in that: The first end cap is welded and fixed to the left end of the cylinder.

4. An adsorption filter according to claim 3, characterized in that: An annular baffle is provided on the left side of the air inlet plate. The annular baffle abuts against the inner wall of the cylinder. The weld between the first end cap and the cylinder corresponds to the annular baffle.

5. An adsorption filter according to claim 1, characterized in that: Both the first and second sealing filter media are sound-absorbing fiberglass cotton.

6. An adsorption filter according to claim 1, characterized in that: The first end cap and the cylinder can be opened and connected via a connector.

7. An adsorption filter according to claim 6, characterized in that: The connector includes U-shaped clamping plates evenly distributed circumferentially along the outer side of the cylinder. The side wall of the first end cover is provided with axial opening slots that correspond one-to-one with the U-shaped clamping plates. The bottom of the axial opening slot is provided with a circumferential clamping groove. A limit block is provided on the side of the circumferential clamping groove near the axial opening slot.

8. An adsorption filter according to claim 6 or 7, characterized in that: A sealing ring is provided inside the side wall of the first end cap.

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