Filtering device for coal bed gas

Abstract

The utility model discloses a filtering device for coal bed gas, and relates to the technical field of coal bed gas filtering. Comprising a tank body, a partition plate is fixedly installed at the position, close to the middle, of the inner wall of the tank body, a limiting sleeve is fixedly installed at the middle position of the lower surface of the partition plate, an air inlet pipe is fixedly installed on the left side face of the limiting sleeve, a round sleeve is fixedly installed on the lower side wall, corresponding to the limiting sleeve, of the tank body, and a filtering mechanism is installed between the limiting sleeve and the round sleeve; a liquid distribution box is fixedly mounted on the upper surface of the partition plate corresponding to the filtering mechanism; a cleaning mechanism is arranged on the inner wall of the lower side of the liquid distribution box; the coal bed gas filtering device has two filtering functions of the filtering core sleeve and the spraying, so that the filtering effect of dust in coal bed gas is better, the spraying and cleaning functions of the filtering core sleeve are added, the service life is greatly prolonged, the use cost is reduced, the working effect is improved, water vapor in the coal bed gas can be filtered, the filtered water can be used as spraying water, and the coal bed gas filtering device is convenient to use. Resources are greatly saved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of coal bed gas filtering, in particular to a filtering device for coal bed gas. Background Art

[0002] Coalbed methane refers to hydrocarbon gas stored in coal seams with methane as the main component, mainly adsorbed on the surface of coal matrix particles, and partially free in coal pores or dissolved in coal seam water. It is a mineral resource associated with coal and an unconventional natural gas. It is a clean, high-quality energy and chemical raw material that has emerged internationally in the past 10 to 20 years. It is commonly known as "gas; after coalbed methane is mined, it needs to be filtered.

[0003] In the prior art, the filter element of the coalbed methane filter device is very likely to be clogged with dust during long-term use, requiring regular shutdown for cleaning. The filter element disassembly and assembly process is cumbersome, reducing work efficiency. Dust is only filtered through the filter element, resulting in poor filtering effect. The lack of removal of water vapor in the coalbed methane leads to poor filtering effect. Utility Model Content

[0004] The utility model provides a filtering device for coal bed gas to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for coalbed methane, comprising a tank body, a partition is fixedly installed near the middle position of the inner wall of the tank body, a limiting sleeve is fixedly installed at the middle position of the lower surface of the partition, an air inlet pipe is fixedly installed on the left side of the limiting sleeve, and the air inlet pipe is inserted on the outer side of the left side wall of the tank body, a circular sleeve is fixedly installed on the lower side wall of the tank body corresponding to the limiting sleeve, and a filtering mechanism is installed between the limiting sleeve and the circular sleeve, and a liquid cloth is fixedly installed on the upper surface of the partition corresponding to the filtering mechanism A cleaning mechanism is arranged on the lower inner wall of the liquid distribution box, and the cleaning mechanism is inserted in the filtering mechanism. The liquid distribution box is connected with the water filter through an extraction assembly. The water filter is fixedly embedded in the right side wall of the tank body. A water inlet pipe is fixedly installed on the lower surface of the water filter, and the water inlet pipe is inserted in the tank body near the lower side. A vent hole is opened on the partition near the left side. A water removal mechanism is arranged on the upper wall of the tank body near the upper side. A top cover is threadedly installed on the upper surface of the tank body, and an air outlet pipe is fixedly installed on the top cover.

[0006] Furthermore, the filtering mechanism includes a filter core sleeve and a sealing cover, the filter core sleeve is inserted between the limiting sleeve and the circular sleeve, the sealing cover is threadedly installed on the lower surface of the circular sleeve, and the lower inner wall of the sealing cover presses the filter core sleeve into the limiting sleeve.

[0007] Furthermore, the cleaning mechanism includes a transmission tube, a mechanical seal, blades, a scraper and a nozzle. The transmission tube is installed on the lower side wall of the liquid distribution box through a mechanical seal. The upper surface of the transmission tube is an open structure. Blades are arranged on the transmission tube at a position corresponding to the air intake pipe. A scraper and a nozzle are arranged on the transmission tube at a position corresponding to the filter core sleeve.

[0008] Furthermore, a through hole for the transmission pipe to pass through is provided on the partition corresponding to the transmission pipe.

[0009] Furthermore, a plug is threadedly installed on the right side of the water filter, and the plug is arranged on the outer side of the right side wall of the tank body.

[0010] Furthermore, the water removal mechanism includes a spoiler, a placement ring, a mist capture net and a waterproof breathable membrane. The spoiler is installed alternately on the left and right inner walls of the tank body, and the placement ring is fixedly installed on the inner wall of the tank body. The upper surface of the placement ring is sequentially placed with a mist capture net and a waterproof breathable membrane from bottom to top, and the waterproof breathable membrane is pressed and fixed by the lower surface of the top cover.

[0011] Furthermore, a drain valve is installed at the lower edge of the right side wall of the tank body.

[0012] Compared with the prior art, the utility model provides a filtering device for coal bed methane, which has the following beneficial effects:

[0013] 1. The filter device for coalbed methane can filter and spray the coalbed methane to remove impurities by setting a filter core sleeve and a cleaning mechanism, so that the dust filtering effect in the coalbed methane is better, and the spraying and cleaning functions of the filter core sleeve are increased, which greatly prolongs the service life of the filter core sleeve, reduces the use cost, and improves the working effect.

[0014] 2. The filtering device for coalbed methane can filter water vapor in coalbed methane by setting a water removal mechanism, and the filtered water can flow back to the bottom of the tank body and be used as spraying water, which greatly saves resources and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a schematic diagram of the cleaning mechanism structure of the utility model.

[0018] In the figure: 1. tank body; 2. partition; 3. limit sleeve; 4. air inlet pipe; 5. round sleeve; 6. filtering mechanism; 601. filter core sleeve; 602. sealing cover; 7. liquid distribution box; 8. cleaning mechanism; 801. transmission pipe; 802. mechanical seal; 803. blade; 804. scraper; 805. nozzle; 9. extraction component; 10. water filter; 11. water inlet pipe; 12. vent; 13. water removal mechanism; 131. spoiler; 132. placement ring; 133. mist capture net; 134. waterproof breathable membrane; 14. top cover; 15. air outlet pipe; 16. through hole; 17. plug; 18. drain valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 3 The utility model discloses a filtering device for coalbed methane, comprising a tank body 1, a partition plate 2 is fixedly installed near the middle position of the inner wall of the tank body 1, a limiting sleeve 3 is fixedly installed at the middle position of the lower surface of the partition plate 2, an air inlet pipe 4 is fixedly installed on the left side of the limiting sleeve 3, and the air inlet pipe 4 is inserted outside the left side wall of the tank body 1, a round sleeve 5 is fixedly installed on the lower side wall of the tank body 1 corresponding to the limiting sleeve 3, and a filtering mechanism 6 is installed between the limiting sleeve 3 and the round sleeve 5, a liquid distribution box 7 is fixedly installed on the upper surface of the partition plate 2 corresponding to the filtering mechanism 6, and the lower inner wall of the liquid distribution box 7 A cleaning mechanism 8 is provided on it, and the cleaning mechanism 8 is inserted in the filtering mechanism 6. The liquid distribution box 7 is connected with the water filter 10 through the extraction component 9. The water filter 10 is fixedly embedded in the right side wall of the tank body 1. A water inlet pipe 11 is fixedly installed on the lower surface of the water filter 10, and the water inlet pipe 11 is inserted in the tank body 1 near the lower side. A vent hole 12 is opened on the partition 2 near the left side. A water removal mechanism 13 is provided on the inner wall of the tank body 1 near the upper side. A top cover 14 is threadedly installed on the upper surface of the tank body 1, and an air outlet pipe 15 is fixedly installed on the top cover 14.

[0021] Specifically, the filtering mechanism 6 includes a filter core sleeve 601 and a sealing cover 602. The filter core sleeve 601 is inserted between the limiting sleeve 3 and the circular sleeve 5. The sealing cover 602 is threadedly installed on the lower surface of the circular sleeve 5, and the lower inner wall of the sealing cover 602 presses the filter core sleeve 601 into the limiting sleeve 3.

[0022] In this embodiment, the sealing cover 602 is threadedly sealed with the circular sleeve 5, so that the filter core sleeve 601 is installed between the limiting sleeve 3 and the circular sleeve 5, which greatly improves the installation and fixing effect of the filter core sleeve 601. Conversely, the sealing cover 602 is removed to facilitate the cleaning or replacement of the filter core sleeve 601.

[0023] Specifically, the cleaning mechanism 8 includes a transmission tube 801, a mechanical seal 802, blades 803, a scraper 804 and a nozzle 805. The transmission tube 801 is installed on the lower side wall of the liquid distribution box 7 through the mechanical seal 802. The upper surface of the transmission tube 801 is an open structure. The blades 803 are arranged on the transmission tube 801 at a position corresponding to the air intake pipe 4. The scraper 804 and the nozzle 805 are arranged on the transmission tube 801 at a position corresponding to the filter core sleeve 601.

[0024] In this embodiment, the mechanical seal 802 enables the transmission tube 801 to have a rotation function. When the blade 803 is blown by the air intake pipe 4, the blade 803 drives the transmission tube 801 to rotate, and the transmission tube 801 drives the scraper 804 to rotate to scrape off impurities on the inside of the filter core sleeve 601. At the same time, the nozzle 805 rotates with the transmission tube 801 to spray the incoming coalbed methane and the inner wall of the filter core sleeve 601.

[0025] Specifically, a through hole 16 for the transmission pipe 801 to pass through is opened on the partition plate 2 corresponding to the transmission pipe 801.

[0026] In this embodiment, the through hole 16 facilitates the transmission tube 801 to rotate on the partition 2.

[0027] Specifically, a plug 17 is threadedly mounted on the right side of the water filter 10 , and the plug 17 is disposed on the outer side of the right side wall of the tank body 1 .

[0028] In this embodiment, the plug 17 enables the water filter 10 to be opened, so as to facilitate cleaning or replacement of the filter element inside the water filter 10 .

[0029] Specifically, the dewatering mechanism 13 includes a spoiler 131, a placement ring 132, a mist capture net 133 and a waterproof breathable membrane 134. The spoiler 131 is installed alternately on the left and right inner walls of the tank body 1, and the placement ring 132 is fixedly installed on the inner wall of the tank body 1. The upper surface of the placement ring 132 is sequentially placed with the mist capture net 133 and the waterproof breathable membrane 134 from bottom to top, and the waterproof breathable membrane 134 is pressed and fixed by the lower surface of the top cover 14.

[0030] In this embodiment, the spoiler 131 reduces the gas flow rate to perform preliminary dehumidification, and then removes water vapor in the coalbed methane through the mist capture net 133 and the waterproof breathable membrane 134, and the removed water drips downward on the lower side of the tank body 1.

[0031] Specifically, a drain valve 18 is installed at the lower edge of the right side wall of the tank body 1 .

[0032] In this embodiment, the drain valve 18 drains liquid when there is a lot of liquid in the tank body 1.

[0033] When in use, the air inlet pipe 4 allows the coalbed methane to enter the limiting sleeve 3, and the incoming coalbed methane flows to the filter core sleeve 601 in the filter mechanism 6, and the dust in the coalbed methane is filtered through the filter core sleeve 601. At the same time, the extraction component 9 pumps water to the water inlet pipe 11 through the water filter 10. The water inlet pipe 11 allows the water at the bottom of the tank body 1 to be pumped into the liquid distribution box 7, and then flows into the transmission pipe 801 in the cleaning mechanism 8 through the liquid distribution box 7. The mechanical seal 802 enables the transmission pipe 801 to have a rotation function. When the blade 803 is blown by the air inlet pipe 4, the blade 803 drives the transmission pipe 801 to rotate, and the transmission pipe 801 drives the scraper 804 to rotate, so as to scrape off the impurities on the inside of the filter core sleeve 601. At the same time, the nozzle 805 moves with the transmission pipe 801. It rotates to spray the incoming coalbed methane and the inner wall of the filter core sleeve 601, and can filter and spray the coalbed methane to remove impurities, so that the dust filtering effect in the coalbed methane is better, the service life of the filter core sleeve 601 is greatly extended, the use cost is reduced, and the working effect is improved. The filtered gas flows upward through the vent 12, and the gas flow rate is reduced by the spoiler 131 in the water removal mechanism 13 to perform preliminary dehumidification, and then the water vapor in the coalbed methane is removed by the mist capture net 133 and the waterproof breathable membrane 134. The removed water drips downward on the lower side of the tank body 1, which can filter the water vapor in the coalbed methane, and the filtered water can flow back to the bottom of the tank body 1 and be used as spray water, which greatly saves resources and is highly practical.

[0034] To sum up, the filtering device for coalbed methane has two sets of filtering functions, namely, filter core sleeve 601 and spraying, which makes the dust filtering effect in coalbed methane better, and increases the spraying and cleaning function of filter core sleeve 601, which greatly prolongs the service life, reduces the cost of use, improves the working effect, can filter the water vapor in coalbed methane, and the filtered water can be used as spraying water, which greatly saves resources and is highly practical.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for coalbed methane, comprising a tank body (1), characterized in that: A partition (2) is fixedly mounted near the middle of the inner wall of the tank body (1), a limiting sleeve (3) is fixedly mounted at the middle of the lower surface of the partition (2), an air intake pipe (4) is fixedly mounted on the left side of the limiting sleeve (3), and the air intake pipe (4) is inserted outside the left side wall of the tank body (1), a round sleeve (5) is fixedly mounted on the lower side wall of the tank body (1) corresponding to the limiting sleeve (3), and a filtering mechanism (6) is installed between the limiting sleeve (3) and the round sleeve (5), a liquid distribution box (7) is fixedly mounted on the upper surface of the partition (2) corresponding to the filtering mechanism (6), a cleaning mechanism (8) is arranged on the lower inner wall of the liquid distribution box (7), and the cleaning mechanism (8) is arranged on the lower inner wall of the liquid distribution box (7). The structure (8) is inserted into the filtering mechanism (6); the liquid distribution box (7) is connected to the water filter (10) through the extraction component (9); the water filter (10) is fixedly embedded in the right side wall of the tank body (1); a water inlet pipe (11) is fixedly installed on the lower surface of the water filter (10), and the water inlet pipe (11) is inserted in the tank body (1) near the lower side; a vent hole (12) is opened on the partition plate (2) near the left side; a water removal mechanism (13) is provided on the inner wall of the tank body (1) near the upper side; a top cover (14) is threadedly installed on the upper surface of the tank body (1); and an air outlet pipe (15) is fixedly installed on the top cover (14).

2. A filtering device for coal bed gas according to claim 1, characterized in that: The filtering mechanism (6) comprises a filter core sleeve (601) and a sealing cover (602); the filter core sleeve (601) is inserted between the limiting sleeve (3) and the circular sleeve (5); the sealing cover (602) is threadedly mounted on the lower surface of the circular sleeve (5); and the lower inner wall of the sealing cover (602) presses the filter core sleeve (601) into the limiting sleeve (3).

3. A filtering device for coal bed methane according to claim 1, characterized in that: The cleaning mechanism (8) comprises a transmission tube (801), a mechanical seal (802), blades (803), a scraper (804) and a nozzle (805); the transmission tube (801) is mounted on the lower side wall of the liquid distribution box (7) via the mechanical seal (802); the upper surface of the transmission tube (801) is an open structure; blades (803) are provided on the transmission tube (801) at a position corresponding to the air inlet pipe (4); and the scraper (804) and the nozzle (805) are provided on the transmission tube (801) at a position corresponding to the filter core sleeve (601).

4. A filtering device for coal bed methane according to claim 3, characterized in that: A through hole (16) for the transmission tube (801) to pass through is provided on the partition (2) corresponding to the transmission tube (801).

5. A filtering device for coal bed methane according to claim 1, characterized in that: A plug (17) is threadedly mounted on the right side surface of the water filter (10), and the plug (17) is arranged on the outside of the right side wall of the tank body (1).

6. A filtering device for coal bed methane according to claim 1, characterized in that: The dewatering mechanism (13) comprises a spoiler (131), a placement ring (132), a mist capture net (133) and a waterproof breathable membrane (134); the spoiler (131) is installed alternately on the left and right inner walls of the tank body (1) in an upper and lower manner; the placement ring (132) is fixedly installed on the inner wall of the tank body (1); the mist capture net (133) and the waterproof breathable membrane (134) are placed on the upper surface of the placement ring (132) in sequence from bottom to top, and the waterproof breathable membrane (134) is pressed and fixed by the lower surface of the top cover (14).

7. A coal bed gas filtering device according to claim 1, characterized in that: A drain valve (18) is installed at the lower edge of the right side wall of the tank body (1).

Images