Gas filter

Abstract

The utility model relates to a gas filter which comprises a cylinder, a gas inlet pipe is arranged at the bottom of the cylinder, a gas outlet pipe is arranged at the top of the cylinder, a pore plate I and a pore plate II are arranged on the upper side and the lower side in the cylinder respectively, and the portion, between the pore plate I and the pore plate II, in the cylinder is filled with an activated carbon layer. A feed pipe penetrating through a screw pipe I on the top wall of the barrel is arranged in the middle of the pore plate I, the feed pipe and the screw pipe I are fixed in a threaded connection mode, a sealing plug I is arranged in the feed pipe, a discharge pipe penetrating through a screw pipe II on the bottom wall of the barrel is arranged in the middle of the pore plate II, the discharge pipe and the screw pipe II are connected in a threaded mode, and a sealing plug II is arranged in the discharge pipe. A plurality of vertical rods inserted into the activated carbon layer are further vertically arranged at the top of the pore plate II, and an elastic supporting mechanism abutting against the bottom end face of the pore plate II is arranged on the inner bottom wall of the barrel. According to the invention, gas can be filtered and purified, and meanwhile, the activated carbon is convenient to replace.

Description

Technical Field

[0001] This invention relates to the field of gas filtration, and in particular to a gas filter. Background Technology

[0002] In industrial production, effective filtration of gases (such as compressed air, flue gas, and waste gas) is often a crucial measure to obtain clean gas sources and reduce pollution. Activated carbon, as a commonly used filter medium, is mostly prepared from carbon-containing raw materials such as wood, coal, and petroleum coke through pyrolysis and activation processing. Activated carbon has a well-developed pore structure, a large specific surface area, and abundant surface chemical groups, thus exhibiting excellent adsorption properties. It is widely used for filtration and purification of gases, including oil removal, impurity removal, and adsorption of large molecular toxic and harmful gases.

[0003] Currently, existing gas filters, such as the simple bottom-exit gas filter with patent number CN215311054U, have an inlet pipe at the top and an outlet pipe at the bottom for adding and discharging activated carbon. However, during use, it cannot guarantee the tightness between the activated carbon particles inside the cylinder. When the gaps between them are too large, it will affect the filtration and purification of the gas. Furthermore, when the outlet pipe is opened, the activated carbon that has been under pressure for a long time and may have stuck together is difficult to discharge, making it inconvenient to replace the activated carbon. Summary of the Invention

[0004] The purpose of this invention is to provide a gas filter.

[0005] The technical problem of this invention is mainly solved by the following technical solution:

[0006] A gas filter includes a cylindrical body, an inlet pipe at the bottom of the cylindrical body, an outlet pipe at the top of the cylindrical body, a perforated plate I and a perforated plate II respectively on the upper and lower sides of the cylindrical body, an activated carbon layer filling the space between the perforated plate I and the perforated plate II, a feed pipe passing through a spiral tube I on the top wall of the cylindrical body at the middle of the perforated plate I, the feed pipe being screwed to the spiral tube I and a sealing plug I being provided inside the feed pipe, and an outlet pipe passing through a spiral tube II on the bottom wall of the cylindrical body at the middle of the perforated plate II, the outlet pipe being screwed to the spiral tube II and a sealing plug II being provided inside the outlet pipe;

[0007] The top of the perforated plate II is also vertically provided with multiple sets of vertical rods inserted into the activated carbon layer, and the bottom wall of the inner cylinder is provided with an elastic support mechanism that abuts against the bottom end face of the perforated plate II.

[0008] Preferably, the elastic support mechanism includes multiple sets of annular seats disposed at the bottom of the orifice plate II. Multiple sets of sleeves I are disposed on the inner bottom wall of the cylinder directly below the annular seats. The top end of each sleeve I is folded outward to form a bend with a polygonal cross-section. A sleeve II that is adapted to fit the bend is sleeved on the bend. A limiting ring sleeved on the sleeve I is disposed in the opening of the sleeve II below the bend. A boss is disposed at the top end of the sleeve II. A spring connected to the inner bottom of the sleeve I is disposed at the bottom of the boss. A receiving groove with a superior arc cross-section is disposed at the top of the boss. A ball bearing with one end abutting against the bottom end face of the corresponding annular seat is disposed in the receiving groove.

[0009] Preferably, the diameters of the perforated plate I and the perforated plate II are adapted to the size of the opening inside the cylinder, and a wire mesh is provided on the bottom surface of the perforated plate I and the top surface of the perforated plate II, wherein the mesh size is smaller than the diameter of the activated carbon.

[0010] Preferably, the feed pipe is integrally formed with the orifice plate I, the discharge pipe is integrally formed with the orifice plate II, and the orifice plate II has a pot-shaped structure.

[0011] Preferably, the top of the vertical rod is located below the perforated plate I, and a reinforcing rib is provided at the connection between the vertical rod and the perforated plate II.

[0012] Preferably, a drain pipe is provided at the bottom of the cylinder.

[0013] The beneficial effects of this invention are as follows: This invention introduces activated carbon into the cylinder between orifice plate I and orifice plate II by opening the feed pipe. Rotating the feed pipe within the spiral tube I causes orifice plate I to move downwards. Rotating the discharge pipe within the spiral tube II causes orifice plate II to move upwards, thereby reducing the distance between orifice plates I and II. This compresses and fixes the activated carbon layer within the cylinder, reducing the gaps between the activated carbon particles and improving its filtration and purification effect. When it is necessary to discharge activated carbon, rotating the discharge pipe downwards within the spiral tube II... The rotating orifice plate II moves downward, thereby widening the gap between orifice plate II and orifice plate I, providing sufficient space for the movement of activated carbon. Simultaneously, the rotating orifice plate II agitates the activated carbon layer through the vertical rod, causing the activated carbon to be agitated and dispersed between orifice plates I and II, and placed in a loose state. Then, the sealing plug II is pulled out, and the dispersed activated carbon above orifice plate II can flow along the arc-shaped surface at the top of orifice plate II to the discharge pipe for discharge, thus facilitating the replacement of activated carbon inside the cylinder. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the elastic support mechanism in this invention.

[0016] In the diagram: 1. Cylinder, 2. Inlet pipe, 3. Outlet pipe, 4. Orifice plate I, 5. Orifice plate II, 6. Activated carbon layer, 7. Feed pipe, 8. Spiral tube I, 9. Sealing plug I, 10. Discharge pipe, 11. Spiral tube II, 12. Sealing plug II, 13. Vertical rod, 14. Elastic support mechanism, 141. Annular seat, 142. Sleeve I, 143. Bend, 144. Sleeve II, 145. Limiting ring, 146. Boss, 147. Spring, 148. Ball bearing, 15. Drain pipe. Detailed Implementation

[0017] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0018] A gas filter includes a cylinder 1, an air inlet pipe 2 at the bottom of the cylinder 1, an air outlet pipe 3 at the top of the cylinder 1, and a drain pipe 15 at the bottom of the cylinder 1.

[0019] The cylinder 1 has perforated plates I4 and II5 on its upper and lower sides respectively. The cylinder 1 between the perforated plates I4 and II5 is filled with an activated carbon layer 6. A feed pipe 7 is provided in the middle of the perforated plate I4, passing through a spiral tube I8 on the top wall of the cylinder 1. The spiral tube I8 is welded and fixed to the top wall of the cylinder 1. The feed pipe 7 is screwed and fixed to the spiral tube I8. A sealing plug I9 is ​​provided in the feed pipe 7. A discharge pipe 10 is provided in the middle of the perforated plate II5, passing through a spiral tube II11 on the bottom wall of the cylinder 1. The spiral tube II11 is welded and fixed to the bottom wall of the cylinder 1. The discharge pipe 10 is screwed and fixed to the spiral tube II11. A sealing plug II12 is provided in the discharge pipe 10.

[0020] The top of the perforated plate II5 is also vertically provided with multiple sets of vertical rods 13 inserted into the activated carbon layer 6. The top of the vertical rods 13 is located below the perforated plate I4. A reinforcing rib is provided at the connection between the vertical rods 13 and the perforated plate II5. An elastic support mechanism 14 is provided on the bottom wall of the inner wall of the cylinder 1, which abuts against the bottom surface of the perforated plate II5.

[0021] The elastic support mechanism 14 includes multiple sets of annular seats 141 disposed at the bottom of the perforated plate II5. Multiple sets of sleeves I142 are disposed on the inner bottom wall of the cylinder 1 directly below the annular seats 141. The top end of each sleeve I142 is folded outward to form a bend 143 with a polygonal cross-section. A sleeve II144 that is adapted to fit the bend 143 is sleeved on the bend 143. A limiting ring 145 that is sleeved on the sleeve I142 is disposed in the opening of the sleeve II144 below the bend 143. A boss 146 is disposed at the top end of the sleeve II144. A spring 147 connected to the inner bottom of the sleeve I142 is disposed at the bottom of the boss 146. A receiving groove with an arc-shaped cross-section is disposed at the top of the boss 146. A ball 148 with one end abutting against the bottom end face of the corresponding annular seat 141 is disposed in the receiving groove.

[0022] In this embodiment, the diameters of the perforated plate I4 and the perforated plate II5 are adapted to the size of the internal opening of the cylinder 1. A wire mesh is provided on the bottom surface of the perforated plate I4 and the top surface of the perforated plate II5. The diameter of the wire mesh is smaller than that of the activated carbon to prevent the activated carbon from flowing through the wire mesh.

[0023] like Figure 1 As shown, the feed pipe 7 is integrally formed with the orifice plate I4, and the discharge pipe 10 is integrally formed with the orifice plate II5. The orifice plate II5 has a pot-shaped structure.

[0024] The method of using this invention is as follows: Open the feed pipe 7 to introduce activated carbon into the cylinder 1 between the perforated plate I4 and the perforated plate II5. Rotate the feed pipe 7 to make it rotate in the screw tube I8, thereby causing the perforated plate I4 to move downward. Rotate the discharge pipe 10 to make it rotate in the screw tube II11, thereby causing the perforated plate II5 to move upward, thereby reducing the distance between the perforated plate I4 and the perforated plate II5, thereby squeezing and fixing the activated carbon layer 6 in the cylinder 1, reducing the gap between the activated carbons to improve its filtration and purification effect. Gas enters the cylinder through the air inlet pipe 2, then flows through the aperture of the perforated plate II5, the activated carbon, and the aperture of the perforated plate I4, and finally exits through the air outlet pipe 3, so that the activated carbon layer 6 plays a role in filtering and purifying the gas.

[0025] During the above process, the spring 147 extends and pushes the boss 146 and the sleeve II 144 upward, so that the boss 146 provides multi-point support to the bottom of the orifice plate II 5 through the ball 148 and the annular seat 141, reducing the extrusion pressure caused by the material above the orifice plate II 5 and improving the stability of the orifice plate II 5. When it is necessary to discharge activated carbon, the discharge pipe 10 is rotated to rotate downward in the screw tube II 11, thereby driving the orifice plate II 5 downward and expanding the distance between the orifice plate II 5 and the orifice plate I 4, so that there is a large enough space between the orifice plate I 4 and the orifice plate II 5 for the movement of activated carbon. At the same time, the rotating orifice plate II 5 stirs the activated carbon layer 6 through the vertical rod 13, so that the activated carbon is stirred between the orifice plate I 4 and the orifice plate II 5. When the activated carbon is dispersed and in a loose state, it slides on the ball bearing 148 through the annular seat 141 when the orifice plate II5 rotates. This causes the ball bearing 148 to slide in the receiving groove. At the same time, the ball bearing 148 squeezes the boss 146 and the sleeve II144, causing the sleeve II144 to slide downward on the bend 143. Simultaneously, the boss 146 compresses the spring 147 to make it contract. At this time, the elastic support mechanism 14 will not affect the downward rotation of the orifice plate II5, but can also provide multi-point support. Then, the sealing plug II12 is pulled out. At this time, the activated carbon dispersed above the orifice plate II5 can flow along the arc surface at the top of the orifice plate II5 to the discharge pipe 10 for discharge, thereby facilitating the replacement of activated carbon in the cylinder 1.

[0026] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A gas filter, comprising a cylindrical body, wherein an inlet pipe is provided at the bottom of the cylindrical body and an outlet pipe is provided at the top of the cylindrical body, characterized in that: The cylinder is provided with perforated plate I and perforated plate II on its upper and lower sides respectively. The cylinder between perforated plate I and perforated plate II is filled with an activated carbon layer. A feed pipe is provided in the middle of perforated plate I, which passes through a spiral tube I on the top wall of the cylinder. The feed pipe is screwed to the spiral tube I and is provided with a sealing plug I inside the feed pipe. A discharge pipe is provided in the middle of perforated plate II, which passes through a spiral tube II on the bottom wall of the cylinder. The discharge pipe is screwed to the spiral tube II and is provided with a sealing plug II inside the discharge pipe. The top of the perforated plate II is also vertically provided with multiple sets of vertical rods inserted into the activated carbon layer, and the bottom wall of the inner cylinder is provided with an elastic support mechanism that abuts against the bottom end face of the perforated plate II.

2. A gas filter according to claim 1, characterized in that: The elastic support mechanism includes multiple sets of annular seats at the bottom of the orifice plate II. Multiple sets of sleeves I are provided on the bottom wall of the inner cylinder directly below the annular seats. The top of each sleeve I is folded outward to form a bend with a polygonal cross-section. A sleeve II that is adapted to fit the bend is sleeved on the bend. A limiting ring sleeved on the sleeve I is provided in the opening of the sleeve II below the bend. A boss is provided at the top of the sleeve II. A spring connected to the bottom of the inner sleeve I is provided at the bottom of the boss. A receiving groove with a superior arc cross-section is provided at the top of the boss. A ball bearing with one end abutting against the bottom end face of the corresponding annular seat is provided in the receiving groove.

3. A gas filter according to claim 1, characterized in that: The diameters of the perforated plate I and the perforated plate II are adapted to the size of the opening inside the cylinder. A wire mesh is provided on the bottom surface of the perforated plate I and the top surface of the perforated plate II. The mesh size of the wire mesh is smaller than the diameter of the activated carbon.

4. A gas filter according to claim 1, characterized in that: The feed pipe is integrally formed with orifice plate I, and the discharge pipe is integrally formed with orifice plate II. Orifice plate II has a pot-shaped structure.

5. A gas filter according to claim 1, characterized in that: The top of the vertical rod is located below the perforated plate I, and a reinforcing rib is provided at the connection between the vertical rod and the perforated plate II.

6. A gas filter according to claim 1, characterized in that: A drain pipe is installed at the bottom of the cylinder.

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