Coal bed gas exploitation filtering device

Abstract

The utility model discloses a coal bed gas exploitation technology field's coal bed gas exploitation filter equipment, including filter bucket, support leg, blowoff pipe, air inlet pipe, air outlet pipe, the blowoff pipe sets up at filter bucket bottom, the air inlet pipe sets up at filter bucket left side, the air outlet pipe sets up at filter bucket right side upper portion, the cover plate sets up at filter bucket top, and the support ring fixed mounting is in filter bucket inner wall upper portion, and the fixed cylinder sets up in filter bucket, and the filter board fixed mounting is at fixed cylinder bottom, and the baffle fixed mounting is at fixed cylinder upper portion, and the coal bed gas flows to filter bucket bottom, and the larger volume impurity in coal bed gas will directly fall in filter bucket inner bottom, reduces the impurity impact filter board in coal bed gas, prolongs filter board life.

Description

Technical Field

[0001] This utility model relates to the field of coalbed methane extraction technology, specifically to a coalbed methane extraction filtration device. Background Technology

[0002] During the extraction of coalbed methane, because the coalbed methane contains solid particles such as coal powder and rock fragments, it is first filtered to remove these solid particles, making it easier to process the coalbed methane later. For example, in a coalbed methane gathering and filtration device disclosed in Chinese patent literature (application number: CN202323011431.1), brushes clean the surfaces of the first and second filter screens. However, soft brushes cannot clean the filter screens thoroughly, while hard brushes cause significant wear and tear on the filter screens, reducing their service life. If solid particles become embedded in part of the filter holes on the filter screen, it is difficult for the brush to remove them, reducing the efficiency of the filter screen in filtering coalbed methane.

[0003] Therefore, we propose a coalbed methane extraction and filtration device. Utility Model Content

[0004] The purpose of this invention is to provide a coalbed methane extraction and filtration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coalbed methane extraction and filtration device, comprising a filter barrel, support legs, a drain pipe, an inlet pipe, and an outlet pipe, wherein the drain pipe is located at the bottom of the filter barrel, the inlet pipe is located on the left side of the filter barrel, and the outlet pipe is located on the upper right side of the filter barrel.

[0006] A cover plate is provided on top of the filter barrel;

[0007] The support ring is fixedly installed on the upper part of the inner wall of the filter barrel;

[0008] A fixed cylinder is installed inside the filter barrel.

[0009] The filter plate is fixedly installed at the bottom of the fixed cylinder;

[0010] A baffle is fixedly installed on the upper part of the fixed cylinder;

[0011] The fixing column is fixedly installed at the bottom of the cover plate;

[0012] U-shaped fixing block, the U-shaped fixing block is fixedly installed on the upper side of the filter barrel;

[0013] A fixing groove is provided at the top edge of the cover plate;

[0014] A positioning block is disposed within the fixing groove;

[0015] The bottom of the L-shaped positioning rod is connected to the middle of the U-shaped fixing block;

[0016] A threaded hole is provided on the upper part of the L-shaped positioning rod, and a threaded rod is provided inside the threaded hole, with a nut provided on the top of the threaded rod.

[0017] Preferably, the fixing column includes a sleeve and a fixing rod, the fixing rod is installed inside the sleeve, and a spring is provided at the top of the fixing rod, the two ends of the spring being fixedly connected to the fixing rod and the inner wall of the top of the sleeve.

[0018] Preferably, the top of the fixed cylinder extends laterally to the top of the support ring.

[0019] Preferably, a pull ring is fixedly provided at the top of the fixed cylinder.

[0020] Preferably, the U-shaped fixing block has a mounting shaft in the middle, which passes through the lower part of the L-shaped positioning rod and is movably connected to the L-shaped positioning rod.

[0021] Preferably, the bottom of the fixing groove is inclined, and the bottom of the positioning block is set as an inclined surface that matches the bottom of the fixing groove.

[0022] Preferably, the bottom of the threaded rod is connected to the positioning block via a bearing.

[0023] Preferably, valves are installed on the sewage pipe, air inlet pipe, and air outlet pipe.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. After entering the filter barrel, the coalbed methane moves downwards, moves upwards through the filter plate, and is finally discharged through the outlet pipe. As the coalbed methane flows towards the bottom of the filter barrel, larger impurities in the coalbed methane will fall directly to the bottom of the filter barrel, reducing the impact of impurities on the filter plate and extending the service life of the filter plate.

[0026] 2. The threaded rod, through its engagement with the threaded hole, drives the positioning block upward. Once the positioning block disengages from the fixing groove, rotate the L-shaped positioning rod to the right, causing the positioning block to disengage from the top of the cover plate. This allows for quick disassembly of the cover plate, removal of the fixing cylinder, and quick disassembly of the filter plate. After cleaning the filter plate, install the fixing cylinder, with the cover plate installed on top of the filter barrel. Rotate the L-shaped positioning rod to position the positioning block above the fixing groove. Reverse the threaded rod, causing the positioning block to move downward and engage the fixing groove, allowing for quick installation of the fixing cylinder and completing the rapid cleaning of the filter plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the filter cartridge of this utility model;

[0029] Figure 3 This is a schematic diagram of the cover plate installation structure of this utility model;

[0030] Figure 4 This is an enlarged view of section A of this utility model;

[0031] Figure 5 This is a schematic diagram of the fixed column structure of this utility model.

[0032] In the diagram: 1. Filter barrel; 2. Support leg; 3. Drain pipe; 4. Air inlet pipe; 5. Exhaust pipe; 6. Valve; 7. Cover plate; 8. Support ring; 9. Fixing cylinder; 10. Filter plate; 11. Baffle; 12. Pull ring; 13. Fixing column; 131. Sleeve; 132. Fixing rod; 133. Spring; 14. U-shaped fixing block; 15. Fixing groove; 16. Positioning block; 17. L-shaped positioning rod; 18. Threaded rod; 19. Threaded hole; 20. Mounting shaft. Detailed Implementation

[0033] 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.

[0034] Please see Figure 1-5This utility model provides a technical solution: a coalbed methane extraction and filtration device, including a filter barrel 1, a support leg 2, a drain pipe 3, an inlet pipe 4, and an outlet pipe 5. The drain pipe 3 is located at the bottom of the filter barrel 1, the inlet pipe 4 is located on the left side of the filter barrel 1, the outlet pipe 5 is located on the upper right side of the filter barrel 1, a cover plate 7 is located at the top of the filter barrel 1, a support ring 8 is fixedly installed on the upper part of the inner wall of the filter barrel 1, a fixing cylinder is located inside the filter barrel 1, a filter plate 10 is fixedly installed at the bottom of the fixing cylinder 9, a baffle 11 is fixedly installed on the upper part of the fixing cylinder 9, and a fixing column 13 is fixedly installed on... At the bottom of the cover plate 7, a U-shaped fixing block 14 is fixedly installed on the upper side of the filter barrel 1. A fixing groove 15 is located at the top edge of the cover plate 7, and a positioning block 19 is located in the fixing groove 15. The bottom of an L-shaped positioning rod 17 is connected to the middle of the U-shaped fixing block 14. A threaded hole 19 is located on the upper part of the L-shaped positioning rod 17, and a threaded rod 18 is installed in the threaded hole 19. A nut 21 is installed on the top of the threaded rod 18. The filter barrel 1 filters the coalbed methane. The coalbed methane enters the filter barrel 1 through the air inlet pipe 4. The baffle 11 blocks the coalbed methane to prevent the coalbed methane from flowing too fast. Impurities directly impact the fixed cylinder 9, protecting it. After entering the filter barrel 1, the coalbed methane moves downwards, then upwards through the filter plate 10, and finally exits through the outlet pipe 5. As the coalbed methane flows towards the bottom of the filter barrel 1, larger impurities in the coalbed methane fall directly to the bottom of the filter barrel 1, reducing the impact of impurities on the filter plate 10 and extending its service life. When cleaning the filter plate 10, rotating the nut 21 causes the threaded rod 18 to rotate. The threaded rod 18, through its engagement with the threaded hole 19, drives the positioning block 16 to move... Move upwards. After the positioning block 16 disengages from the fixing groove 15, rotate the L-shaped positioning rod 17 to the right to disengage the positioning block 16 from the top of the cover plate 7, quickly disassemble the cover plate 7, remove the fixing cylinder 7, quickly disassemble the filter plate 10, and after cleaning the filter plate 10, install the fixing cylinder 9. Install the cover plate 7 on top of the filter barrel 1, rotate the L-shaped positioning rod 17 to position the positioning block 16 above the fixing groove 15, reverse the threaded rod 18, and move the positioning block 16 downwards to lock the fixing groove 15, quickly install the fixing cylinder 9, and complete the quick cleaning of the filter plate 10.

[0035] Reference embodiment: The fixing column 13 includes a sleeve 131 and a fixing rod 132. The fixing rod 132 is installed inside the sleeve 131. A spring 133 is provided at the top of the fixing rod 132. The two ends of the spring 133 are fixedly connected to the fixing rod 132 and the inner wall of the top of the sleeve 131. The top of the fixing cylinder 9 extends to the side and extends to the top of the support ring 8. When the cover plate 7 is installed, the fixing rod 132 presses against the top of the fixing cylinder 9. The fixing rod 132 presses against the fixing cylinder 9 under the pressure of the spring 133, ensuring that the fixing rod 132 moves inside the sleeve 131 when the cover plate 7 is tightened. This ensures both the fixing of the fixing cylinder 9 and the stable fixing of the cover plate 7.

[0036] Reference embodiment: A pull ring 12 is fixedly provided on the top of the fixed cylinder 9, which facilitates the removal of the fixed cylinder 9 from the filter barrel 1 and the installation of the fixed cylinder 9 into the filter barrel 1.

[0037] Reference embodiment: A mounting shaft 20 is provided in the middle of the U-shaped fixing block 14. The mounting shaft 20 passes through the lower part of the L-shaped positioning rod 17. The mounting shaft 20 is movably connected to the L-shaped positioning rod 17. The L-shaped positioning rod 17 rotates through the mounting shaft 10 to fix or loosen the cover plate 7.

[0038] Reference embodiment: The bottom of the fixing groove 15 is inclined, and the bottom of the positioning block 16 is set as an inclined surface that cooperates with the bottom of the fixing groove 15. After the positioning block 16 is stuck in the fixing groove 15, since the bottom of both the fixing groove 15 and the positioning block 16 are inclined surfaces, the positioning block 16 cannot slide in the fixing groove 15, thus fixing the cover plate 7 firmly.

[0039] Reference embodiment: The bottom of the threaded rod 18 is connected to the positioning block 16 by a bearing. During the rotation of the threaded rod 18, the threaded rod 18 rotates through the bearing and will not drive the positioning block 16 to rotate.

[0040] Reference embodiment: Valves 6 are provided on the drain pipe 3, air inlet pipe 4, and air outlet pipe 5. When disassembling the fixed cylinder 9 and filter plate 10 and draining sewage through the drain pipe 4, the valves on the air inlet pipe 4 and air outlet pipe 5 are closed, and the valve on the drain pipe 3 is opened to drain the sewage from the filter barrel 1. After the fixed cylinder 9 and filter plate 10 are installed and fixed, and after the sewage is drained, the valve on the drain pipe 3 is closed, and the valves on the air inlet pipe 4 and air outlet pipe 5 are opened.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coalbed methane extraction and filtration device, characterized in that, It includes a filter bucket (1), a support leg (2), a drain pipe (3), an air inlet pipe (4), and an air outlet pipe (5). The drain pipe (3) is located at the bottom of the filter bucket (1), the air inlet pipe (4) is located on the left side of the filter bucket (1), and the air outlet pipe (5) is located on the upper right side of the filter bucket (1). Cover plate (7) is provided on top of the filter barrel (1); Support ring (8) is fixedly installed on the upper part of the inner wall of the filter barrel (1); A fixed cylinder (9) is installed inside the filter barrel (1); The filter plate (10) is fixedly installed at the bottom of the fixed cylinder (9); Baffle (11) is fixedly installed on the upper part of the fixed cylinder (9); A fixing post (13) is fixedly installed at the bottom of the cover plate (7); U-shaped fixing block (14) is fixedly installed on the upper side of the filter barrel (1); Fixing groove (15) is provided at the top edge of the cover plate (7); Positioning block (16) is disposed in the fixing groove (15); L-shaped positioning rod (17), the bottom of L-shaped positioning rod (17) is connected to the middle of the U-shaped fixing block (14); A threaded hole (19) is provided on the upper part of the L-shaped positioning rod (17). A threaded rod (18) is provided inside the threaded hole (19), and a nut (21) is provided on the top of the threaded rod (18).

2. The coalbed methane extraction and filtration device according to claim 1, characterized in that: The fixing column (13) includes a sleeve (131) and a fixing rod (132). The fixing rod (132) is installed inside the sleeve (131). A spring (133) is provided on the top of the fixing rod (132). The two ends of the spring (133) are fixedly connected to the fixing rod (132) and the inner wall of the top of the sleeve (131).

3. The coalbed methane extraction and filtration device according to claim 1, characterized in that: The top of the fixed cylinder (9) extends to the side and reaches the top of the support ring (8).

4. A coalbed methane extraction and filtration device according to claim 1, characterized in that: A pull ring (12) is fixedly installed on the top of the fixed cylinder (9).

5. A coalbed methane extraction and filtration device according to claim 1, characterized in that: The U-shaped fixing block (14) is provided with an installation shaft (20) in the middle. The installation shaft (20) passes through the lower part of the L-shaped positioning rod (17) and is movably connected to the L-shaped positioning rod (17).

6. A coalbed methane extraction and filtration device according to claim 1, characterized in that: The bottom of the fixing groove (15) is inclined, and the bottom of the positioning block (16) is set as an inclined surface that matches the bottom of the fixing groove (15).

7. A coalbed methane extraction and filtration device according to claim 1, characterized in that: The bottom of the threaded rod (18) is connected to the positioning block (16) by a bearing.

8. A coalbed methane extraction and filtration device according to claim 1, characterized in that: Valves (6) are installed on the sewage pipe (3), air inlet pipe (4), and air outlet pipe (5).

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