Filter for coal gas purification

Abstract

The utility model discloses a filter for coal gas purification, including filter body and sealing cover, the bottom fixed mounting of sealing cover has the sealing ring, the bottom of sealing ring is tightly inlaid with the top of filter body, be provided with a plurality of locking bolt between filter body and sealing cover, place the cylinder in filter body, two intercommunication mouths are passed through and are set up on the placement cylinder, be equipped with adjusting mechanism between filter body and placement cylinder, be equipped with filter mechanism in the placement cylinder, adjusting mechanism includes two clamping slots on filter body top. The utility model discloses structure design is reasonable, when it is with filter screen dismounting and clean, can filter body's import and export on plugging, avoid when dismounting filter screen, the dirt on filter screen falls down and falls into the situation of happening in filter body's export.

Description

Technical Field

[0001] This utility model relates to the field of coal gas purification technology, and in particular to a filter for coal gas purification. Background Technology

[0002] A gas filter, also known as a coal gas purifier, is a device used to filter coal gas. It should typically be installed before a pressure regulator and must be installed according to the gas flow direction indicated on the filter. The gas filter has pressure testing points at both the inlet and outlet. Coal gas filters are suitable for various non-corrosive gases, including city gas, natural gas, liquefied petroleum gas, and manufactured gas.

[0003] In existing technology, gas filters have a filter screen installed inside, which separates the inlet and outlet of the gas filter. Gas enters through the inlet, passes through the filter screen, and finally exits through the outlet. The filter screen filters impurities in the gas. After prolonged use, a large amount of impurities will adhere to the filter screen. Operators need to disassemble it to clean the attached impurities. During the disassembly process, impurities on the filter screen are prone to falling off and into the outlet of the gas filter. In subsequent use, the impurities that fall into the outlet will enter the equipment along with the gas, affecting the normal operation of the equipment. To address these issues, we have designed a gas purification filter. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a filter for gas purification.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas purification filter includes a filter body and a sealing cover. A sealing ring is fixedly installed at the bottom of the sealing cover, and the bottom of the sealing ring abuts against the top of the filter body. Multiple locking bolts are provided between the filter body and the sealing cover. A placement cylinder is placed inside the filter body, and two through-holes are opened on the placement cylinder. An adjustment mechanism is provided between the filter body and the placement cylinder. A filtration mechanism is provided inside the placement cylinder. The adjustment mechanism includes two slots opened on the top of the filter body. Two connecting blocks are fixedly installed on the side wall of the placement cylinder. The two connecting blocks are placed in opposite slots, and slots are opened on the top of the two connecting blocks.

[0007] Preferably, the filtration mechanism includes two limiting frames fixedly installed on the inner wall of the placement cylinder, two mounting frames placed between the two limiting frames, and a filter screen is provided in each of the two mounting frames.

[0008] Preferably, the inner wall of the limiting frame is fixedly installed with a plurality of first sealing strips, and the side walls of the plurality of first sealing strips abut against the side walls of the opposite mounting frame.

[0009] Preferably, a second sealing strip is fixedly installed on the top of the mounting frame.

[0010] Preferably, two pads are fixedly installed on the inner wall of the placement cylinder, and a sealing plate is placed between the two pads, with the bottom of the sealing plate abutting against the top of the second sealing strip.

[0011] Preferably, two inserts are fixedly installed at the bottom of the sealing cover, and both inserts extend into opposing slots and abut against their inner bottoms.

[0012] Preferably, each of the locking bolts is fitted with a rubber sleeve.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. By adjusting the mechanism, the inlet and outlet of the filter body can be blocked when the filter screen is removed for cleaning, preventing impurities on the filter screen from falling into the outlet of the filter body during removal.

[0015] 2. With the two filters on the limit frame, when one filter is damaged, the other filter can continue to filter the gas, ensuring a good filtration effect.

[0016] In summary, the present invention has a reasonable structural design. When the filter screen is disassembled for cleaning, it can block the inlet and outlet of the filter body, preventing impurities on the filter screen from falling into the outlet of the filter body during disassembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a gas purification filter proposed in this utility model;

[0018] Figure 2 This is a structural cross-sectional view of a gas purification filter proposed in this utility model;

[0019] Figure 3 This is a top view of the structure of a gas purification filter proposed in this utility model.

[0020] Figure 4 This is a top view of the structure of a gas purification filter proposed in this utility model when it is opened;

[0021] Figure 5 for Figure 2Enlarged view of the structure at point A in the image;

[0022] Figure 6 for Figure 2 Enlarged view of the structure at point B in the image.

[0023] In the diagram: 1. Filter body; 2. Sealing cap; 3. Locking bolt; 4. Rubber sleeve; 5. Sealing ring; 6. Placement cylinder; 7. Connecting port; 8. Gasket; 9. Limiting bracket; 10. First sealing strip; 11. Mounting frame; 12. Filter screen; 13. Second sealing strip; 14. Sealing plate; 15. Slot; 16. Connecting block; 17. Slot; 18. Insert block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A gas purification filter includes a filter body 1 and a sealing cover 2. A sealing ring 5 is fixedly installed at the bottom of the sealing cover 2, and the bottom of the sealing ring 5 abuts against the top of the filter body 1. Multiple locking bolts 3 are provided between the filter body 1 and the sealing cover 2, and rubber sleeves 4 are fitted on the multiple locking bolts 3. A placement cylinder 6 is placed inside the filter body 1, and two through-holes 7 are opened on the placement cylinder 6. An adjustment mechanism is provided between the filter body 1 and the placement cylinder 6. A filtration mechanism is provided inside the placement cylinder 6. The adjustment mechanism includes two slots 15 opened on the top of the filter body 1. Two connecting blocks 16 are fixedly installed on the side wall of the placement cylinder 6. The two connecting blocks 16 are placed in the opposite slots 15, and slots 17 are opened on the top of the two connecting blocks 16.

[0026] By adjusting the mechanism, when the filter screen 12 is removed for cleaning, the inlet and outlet of the filter body 1 can be blocked, preventing impurities on the filter screen 12 from falling into the outlet of the filter body 1 when the filter screen 12 is removed.

[0027] The filtration mechanism includes two limiting frames 9 fixedly installed on the inner wall of the placement cylinder 6, two mounting frames 11 placed between the two limiting frames 9, and a filter screen 12 installed in each of the two mounting frames 11. Multiple first sealing strips 10 are fixedly installed on the inner wall of the limiting frames 9, and the side walls of the multiple first sealing strips 10 abut against the side walls of the opposite mounting frames 11. A second sealing strip 13 is fixedly installed on the top of the mounting frames 11. Two pads 8 are fixedly installed on the inner wall of the placement cylinder 6, and a sealing plate 14 is placed between the two pads 8. The bottom of the sealing plate 14 abuts against the top of the second sealing strip 13.

[0028] With the two filters 12 on the limit frame 9, when one filter 12 is damaged, the other filter 12 can continue to filter the gas, ensuring a good filtration effect.

[0029] Two inserts 18 are fixedly installed at the bottom of the sealing cover 2. Both inserts 18 extend into the opposite slot 17 and abut against its inner bottom.

[0030] By setting the insert 18 on the sealing cover 2, the placement cylinder 6 can be limited and fixed, ensuring the stability of the placement cylinder 6 within the filter body 1.

[0031] The functional principle of this utility model can be explained through the following operation methods:

[0032] Normal filtration operation

[0033] Ensure that the filter body 1 and the sealing cover 2 are tightly connected by the locking bolts 3. The rubber sleeve 4 and the sealing ring 5 ensure the sealing of the connection and prevent gas leakage.

[0034] The gas enters through the inlet of the filter body 1 and then passes through the connecting port 7 on the placement cylinder 6 into the filtration mechanism. In the filtration mechanism, the filter screens 12 in the two mounting frames 11 perform double filtration of the gas. The first sealing strip 10 on the limiting frame 9 enhances the sealing between the mounting frame and the limiting frame. The filtered gas is discharged from the outlet.

[0035] If one of the filters 12 is damaged, the other can continue to work, ensuring the filtration effect.

[0036] Sealing operation before filter removal

[0037] Remove the locking bolt 3 and open the sealing cover 2. At this time, the insert 18 at the bottom of the sealing cover disengages from the slot 17 on the connecting block 16, releasing the restriction on the placement cylinder 6.

[0038] Push the placement cylinder 6 so that the connecting block 16 on its side wall slides along the slot 15 on the top of the filter body 1 until the connecting port 7 of the placement cylinder 6 is misaligned with the inlet and outlet of the filter body 1, thereby sealing the inlet and outlet.

[0039] Filter screen removal and cleaning

[0040] Remove the sealing plate 14 from inside the cylinder 6.

[0041] Pull the mounting frame 11 out from the limit bracket 9 and clean the impurities attached to the filter screen 12. During the cleaning process, since the inlet and outlet of the filter body 1 have been blocked by the placement cylinder 6, the impurities will not fall into the outlet.

[0042] After the filter screen 12 is cleaned, the operator uses a vacuum cleaner to remove any remaining impurities from the placement cylinder 6 to ensure the cleanliness of the placement cylinder 6.

[0043] Equipment reset and reassembly

[0044] After cleaning, reinstall the filter screen 12 into the limiting frame 9, ensuring that the first sealing strip 10 fits tightly against the side wall of the mounting frame 11.

[0045] Replace the sealing plate 14 so that its bottom abuts against the second sealing strip 13, restoring the sealing of the filter mechanism.

[0046] Slide the placement cylinder 6 to reset the connecting block 16 within the slot 15, aligning the connecting port 7 with the filter inlet and outlet. Cover with the sealing cap 2, insert the insertion block 18 into the slot 17, and re-secure the sealing cap with the locking bolt 3 to complete the reset.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filter for purifying coal gas, comprising a filter body (1) and a sealing cap (2), characterized in that, A sealing ring (5) is fixedly installed at the bottom of the sealing cover (2). The bottom of the sealing ring (5) abuts against the top of the filter body (1). Multiple locking bolts (3) are provided between the filter body (1) and the sealing cover (2). A placement cylinder (6) is placed inside the filter body (1). Two through ports (7) are opened on the placement cylinder (6). An adjustment mechanism is provided between the filter body (1) and the placement cylinder (6). A filtration mechanism is provided inside the placement cylinder (6). The adjustment mechanism includes two slots (15) on the top of the filter body (1), and two connecting blocks (16) are fixedly installed on the side wall of the placement cylinder (6). The two connecting blocks (16) are placed in the opposite slots (15), and the top of the two connecting blocks (16) is provided with slots (17).

2. The gas purification filter according to claim 1, characterized in that, The filtration mechanism includes two limiting frames (9) fixedly installed on the inner wall of the placement cylinder (6), and two mounting frames (11) are placed between the two limiting frames (9), and a filter screen (12) is provided in each of the two mounting frames (11).

3. A gas purification filter according to claim 2, characterized in that, The inner wall of the limiting frame (9) is fixedly installed with a plurality of first sealing strips (10), and the side walls of the plurality of first sealing strips (10) abut against the side wall of the opposite mounting frame (11).

4. A gas purification filter according to claim 2, characterized in that, A second sealing strip (13) is fixedly installed on the top of the mounting frame (11).

5. A gas purification filter according to claim 4, characterized in that, Two pads (8) are fixedly installed on the inner wall of the placement cylinder (6), and a sealing plate (14) is placed between the two pads (8). The bottom of the sealing plate (14) abuts against the top of the second sealing strip (13).

6. A gas purification filter according to claim 1, characterized in that, The bottom of the sealing cover (2) is fixedly installed with two inserts (18), both of which extend into the opposite slots (17) and abut against their inner bottoms.

7. A gas purification filter according to claim 1, characterized in that, Rubber sleeves (4) are fitted onto each of the locking bolts (3).

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