Coal bed gas filtering device

Abstract

The utility model belongs to coal bed gas technical field especially is a kind of coal bed gas filtering device, including jar body, the left and right side wall of jar body is provided with air intake mechanism, and the lower surface of jar body under air intake mechanism is provided with deslagging mechanism, the inner wall of jar body is located on air intake mechanism upper side and is equipped with placing mechanism, the upper surface of jar body is equipped with sealing cover with thread, the upper inner wall of sealing cover is fixedly installed with first limit sleeve, and filter screen cover is installed between the first limit sleeve and the upper surface of lower placing mechanism, cleaning mechanism is installed on the sealing cover corresponding to filter screen cover, the right side wall of jar body is fixedly installed with air outlet pipe close to upper side position;The utility model can carry out double filtration to coal bed gas through the purification liquid and filter screen cover at the air intake mechanism in jar body, make the filtering effect better, and filter screen cover has cleaning function, is not easy to block, prolongs the service period, can discharge the impurity filtered out under the condition of not stopping, improves work efficiency.

Description

Technical Field

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

[0002] Coalbed methane refers to hydrocarbon gases stored in coal seams, mainly composed of methane, which are primarily adsorbed on the surface of coal matrix particles, with some remaining free in coal pores or dissolved in coal seam water. It is a associated mineral resource of coal, belonging to unconventional natural gas, and is a clean and high-quality energy source and chemical raw material that has emerged internationally in the last one or two decades. It is commonly known as "gas." Coalbed methane needs to be filtered after extraction.

[0003] Currently, conventional coalbed methane filtration devices use a single filter screen for impurity filtration, resulting in poor filtration efficiency. Furthermore, the large amount of dust easily clogs the filter screen, requiring regular cleaning or replacement. This leads to a short service life, and the large amount of impurities filtered out necessitates shutdown for cleaning, reducing work efficiency. Therefore, we propose a coalbed methane filtration device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a coalbed methane filtration device that solves the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A coalbed methane filtration device includes a tank body. An air inlet mechanism is provided on the left and right side walls of the tank body, and a slag discharge mechanism is provided on the lower surface of the tank body below the air inlet mechanism. A placement mechanism is installed on the inner wall of the tank body above the air inlet mechanism. A sealing cap is threaded onto the upper surface of the tank body. A first limiting sleeve is fixedly installed on the upper inner wall of the sealing cap, and a filter screen sleeve is installed between the first limiting sleeve and the upper surface of the lower placement mechanism. A cleaning mechanism is installed on the sealing cap corresponding to the filter screen sleeve. An air outlet pipe is fixedly installed on the right side wall of the tank body near the upper side.

[0006] Furthermore, the air intake mechanism includes an air intake pipe, a check valve, an annular air distribution pipe, an air outlet, and a fixing rod. The air intake pipe is fixedly installed on the left side wall of the tank. A check valve is provided on the air intake pipe. An annular air distribution pipe is fixedly installed on the right side of the air intake pipe, and air outlets are evenly arranged circumferentially on the lower surface of the annular air distribution pipe. The right side of the annular air distribution pipe is connected and fixed to the inner right side wall of the tank through the fixing rod.

[0007] Furthermore, the slag discharge mechanism includes a first conical hopper, a second conical hopper, and an electric slag discharge valve. The first conical hopper and the second conical hopper are fixedly installed on the inner wall of the tank from top to bottom, and the electric slag discharge valve is fixedly installed on the lower surface of the second conical hopper.

[0008] Furthermore, the placement mechanism includes a placement plate, a second limiting sleeve, and a circular hole. The placement plate is fixedly installed on the inner wall of the tank. The upper surface of the placement plate clamps and fixes the filter screen sleeve to the upper inner wall of the sealing cap. The upper surface of the placement plate is fixedly installed with the second limiting sleeve, which is sleeved on the outside of the filter screen sleeve. The placement plate has a circular hole with the same diameter as the inner diameter of the filter screen sleeve.

[0009] Furthermore, the cleaning mechanism includes an electric telescopic rod, a mounting box, a drive motor, a transmission rod, a scraper, and a plug. The electric telescopic rod is fixedly installed on the upper surface of the sealing cover. The mounting box is fixedly installed on the lower surface of the output shaft of the electric telescopic rod. The drive motor is installed on the lower side of the mounting box. The transmission rod is fixed on the lower surface of the output shaft of the drive motor. Scrapers are fixedly installed on the left and right sides of the transmission rod at positions corresponding to the filter screen sleeve. A plug is fixedly installed on the lower surface of the transmission rod, and the plug matches the outlet of the first conical bucket.

[0010] Furthermore, the lower surface of the tank is an open structure, and rectangular notches are provided on both the front and rear side walls of the tank.

[0011] (III) Beneficial Effects Compared with the prior art, the present invention provides a coalbed methane filtration device, which has the following beneficial effects: This invention enables dual filtration of coalbed methane through the purification liquid and filter screen at the air inlet mechanism inside the tank, resulting in better filtration. The filter screen is then cleaned by a cleaning mechanism to prevent clogging and extend its service life. Furthermore, the first conical hopper is sealed to allow filtered impurities to be discharged without stopping the machine, thus improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic cross-sectional view of the tank body of this utility model; Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model.

[0013] In the diagram: 1. Tank body; 2. Air inlet mechanism; 201. Air inlet pipe; 202. Check valve; 203. Annular air distribution pipe; 204. Air outlet head; 205. Fixing rod; 3. Slag discharge mechanism; 301. First conical hopper; 302. Second conical hopper; 303. Electric slag discharge valve; 4. Placement mechanism; 401. Placement plate; 402. Second limiting sleeve; 403. Round hole; 5. Sealing cover; 6. First limiting sleeve; 7. Filter screen sleeve; 8. Cleaning mechanism; 801. Electric telescopic rod; 802. Mounting box; 803. Drive motor; 804. Transmission rod; 805. Scraper; 806. Plug; 9. Air outlet pipe; 10. Rectangular notch. Detailed Implementation

[0014] 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. Example

[0015] like Figures 1-3 As shown in the figure, an embodiment of the present invention discloses a coalbed methane filtration device, including a tank 1. An air inlet mechanism 2 is provided on the left and right side walls of the tank 1, and a slag discharge mechanism 3 is provided on the lower surface of the tank 1 below the air inlet mechanism 2. A placement mechanism 4 is installed on the inner wall of the tank 1 above the air inlet mechanism 2. Purification liquid is filled between the lower side of the placement mechanism 4 and the lower inner wall of the slag discharge mechanism 3. A sealing cover 5 is threaded on the upper surface of the tank 1. A first limiting sleeve 6 is fixedly installed on the upper inner wall of the sealing cover 5, and a filter screen sleeve 7 is installed between the first limiting sleeve 6 and the upper surface of the lower placement mechanism 4. A cleaning mechanism 8 is installed on the sealing cover 5 corresponding to the filter screen sleeve 7. An air outlet pipe 9 is fixedly installed on the right side wall of the tank 1 near the upper side.

[0016] like Figure 2 As shown, in some embodiments, the air intake mechanism 2 includes an air intake pipe 201, a check valve 202, an annular air distribution pipe 203, an air outlet 204, and a fixing rod 205. The air intake pipe 201 is fixedly installed on the left side wall of the tank body 1. The check valve 202 is provided on the air intake pipe 201. The annular air distribution pipe 203 is fixedly installed on the right side of the air intake pipe 201, and the air outlet 204 is evenly arranged circumferentially on the lower surface of the annular air distribution pipe 203. The right side of the annular air distribution pipe 203 is connected and fixed to the right inner wall of the tank body 1 through the fixing rod 205.

[0017] In this embodiment, the air inlet pipe 201 is connected to the coalbed methane pump through a pipeline. The pressurized coalbed methane flows into the annular gas distribution pipe 203 and then flows into the tank 1 through the gas outlet 204 on the lower surface of the annular gas distribution pipe 203.

[0018] like Figure 2 As shown, in some embodiments, the slag discharge mechanism 3 includes a first conical hopper 301, a second conical hopper 302, and an electric slag discharge valve 303. The first conical hopper 301 and the second conical hopper 302 are fixedly installed on the inner wall of the tank body 1 from top to bottom, and the electric slag discharge valve 303 is fixedly installed on the lower surface of the second conical hopper 302.

[0019] In this embodiment, the first conical hopper 301 directs the filtered impurities to the upper surface of the second conical hopper 302 for collection. Then, the cleaning mechanism 8 seals the first conical hopper 301 and opens the electric slag discharge valve 303 to discharge the impurities from the upper surface of the second conical hopper 302.

[0020] like Figure 2 As shown, in some embodiments, the placement mechanism 4 includes a placement plate 401, a second limiting sleeve 402, and a circular hole 403. The placement plate 401 is fixedly installed on the inner wall of the tank 1. The upper surface of the placement plate 401 clamps and fixes the filter screen sleeve 7 to the upper inner wall of the sealing cover 5. The second limiting sleeve 402 is fixedly installed on the upper surface of the placement plate 401 and is sleeved on the outer side of the filter screen sleeve 7. The placement plate 401 has a circular hole 403, and the diameter of the circular hole 403 is the same as the inner diameter of the filter screen sleeve 7.

[0021] In this embodiment, the placement plate 401 is used to place the filter screen sleeve 7 on the lower surface, and the lower end of the filter screen sleeve 7 is limited by the second limiting sleeve 402. The round hole 403 meets the gas flow requirements and allows the cleaned impurities to fall downward.

[0022] like Figure 3 As shown, in some embodiments, the cleaning mechanism 8 includes an electric telescopic rod 801, a mounting box 802, a drive motor 803, a transmission rod 804, a scraper 805, and a plug 806. The electric telescopic rod 801 is fixedly installed on the upper surface of the sealing cover 5. The mounting box 802 is fixedly installed on the lower surface of the output shaft of the electric telescopic rod 801. The drive motor 803 is installed on the lower side of the mounting box 802. The transmission rod 804 is fixed on the lower surface of the output shaft of the drive motor 803. The scraper 805 is fixedly installed on the left and right sides of the transmission rod 804 at positions corresponding to the filter screen sleeve 7. The plug 806 is fixedly installed on the lower surface of the transmission rod 804, and the plug 806 matches the outlet of the first conical hopper 301.

[0023] In this embodiment, the output shaft of the drive motor 803 drives the transmission rod 804 to rotate, which in turn drives the scraper 805 to rotate. The scraper 805 cleans the impurities adhering to the inner wall of the filter screen 7, making the filter screen 7 less prone to clogging. The drive motor 803 on the lower surface of the mounting box 802 is moved downward by the electric telescopic rod 801, which in turn drives the plug 806 downward through the transmission rod 804, so that the plug 806 can seal the outlet of the first conical bucket 301.

[0024] like Figure 1 As shown, in some embodiments, the lower surface of the tank 1 is an open structure, and rectangular notches 10 are provided on both the front and rear side walls of the tank 1.

[0025] In this embodiment, the rectangular notch 10 facilitates the discharge mechanism 3 to leak out, making it convenient to clean up the discharged impurities.

[0026] In use, the purification liquid is poured through the upper surface of the tank 1 between the upper inner wall of the placement mechanism 4 and the lower inner wall of the slag discharge mechanism 3. Then, the filter screen sleeve 7 is placed on the upper surface of the placement plate 401 of the placement mechanism 4, and the second limiting sleeve 402 limits the lower end of the filter screen sleeve 7. The sealing cap 5 is then threaded onto the upper surface of the tank 1, and the upper end of the filter screen sleeve 7 is limited by the first limiting sleeve 6. The lower surface of the sealing cap 5 and the upper surface of the placement plate 401 clamp the upper and lower sides of the filter screen sleeve 7. The cleaning mechanism 8 on the fixed sealing cover 5 is inserted into the filter screen sleeve 7, so that the air inlet pipe 201 in the air inlet mechanism 2 is connected to the coalbed methane pump through the pipeline. The pressurized coalbed methane flows into the annular gas distribution pipe 203, and then flows into the tank 1 through the gas outlet 204 on the lower surface of the annular gas distribution pipe 203. The coalbed methane is filtered for the first time by the purification liquid. The filtered coalbed methane flows through the round hole 403 to the filter screen sleeve 7. The filter screen sleeve 7 performs a second filtration of the coalbed methane. The filtered coalbed methane flows out through the gas outlet pipe 9. The timer switch, via the controller, causes the output shaft of the drive motor 803 in the cleaning mechanism 8 to rotate the transmission rod 804, which in turn rotates the scraper 805. The scraper 805 cleans the impurities adhering to the inner wall of the filter screen 7, allowing the impurities to fall into the purification liquid through the round hole 403. The cleaning time is 5 minutes. One hour after cleaning is completed, the impurities in the purification liquid, under the influence of gravity, fall through the outlet of the first conical hopper 301 in the slag discharge mechanism 3 onto the upper surface of the second conical hopper 302, and are then discharged via the electric telescopic rod 8. 01 drives the drive motor 803 on the lower surface of the mounting box 802 to move downwards, so that the drive motor 803 drives the plug 806 to move downwards through the transmission rod 804, so that the plug 806 can seal the outlet of the first conical bucket 301, open the electric slag discharge valve 303, and discharge the impurities on the upper surface of the second conical bucket 302. Slag discharge can be carried out without stopping the machine. After the slag discharge is completed, the electric slag discharge valve 303 closes, so that the electric telescopic rod 801 drives the plug 806 to reset, and the filtration of the mirror coalbed methane continues.

[0027] In summary, this coalbed methane filtration device, through the purification liquid at the air inlet mechanism 2 inside the tank 1 and the filter screen 7, can perform dual filtration of coalbed methane, resulting in better filtration effect. Furthermore, the filter screen 7 has a cleaning function, is not prone to clogging, extends its service life, and can discharge filtered impurities without stopping the machine, thus improving work efficiency.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coalbed methane filtration device, comprising a tank (1), characterized in that: An air intake mechanism (2) is provided on the left and right side walls of the tank (1), and a slag discharge mechanism (3) is provided on the lower surface of the tank (1) below the air intake mechanism (2). The air intake mechanism (2) includes an air intake pipe (201), a check valve (202), an annular air distribution pipe (203), an air outlet (204), and a fixing rod (205). The air intake pipe (201) is fixedly installed on the left side wall of the tank (1), and a check valve (202) is provided on the air intake pipe (201). An annular air distribution pipe (203) is fixedly installed on the right side of the air intake pipe (201), and an air outlet (204) is evenly provided on the lower surface of the annular air distribution pipe (203) along the circumference. The right side of the pipe (203) is connected and fixed to the inner wall of the right side of the tank (1) by a fixing rod (205). The inner wall of the tank (1) is equipped with a placement mechanism (4) above the air intake mechanism (2). The placement mechanism (4) includes a placement plate (401), a second limiting sleeve (402), and a round hole (403). The placement plate (401) is fixedly installed on the inner wall of the tank (1). The upper surface of the placement plate (401) clamps and fixes the filter screen sleeve (7) to the upper inner wall of the sealing cover (5). The upper surface of the placement plate (401) is fixedly installed with the second limiting sleeve (402), and the second limiting sleeve (402) is sleeved on the outside of the filter screen sleeve (7). 01) A circular hole (403) is provided on the upper surface of the tank (1), and the diameter of the circular hole (403) is the same as the inner diameter of the filter screen sleeve (7). A sealing cover (5) is threaded on the upper surface of the tank (1). A first limiting sleeve (6) is fixedly installed on the upper inner wall of the sealing cover (5). A filter screen sleeve (7) is installed between the first limiting sleeve (6) and the upper surface of the lower placement mechanism (4). A cleaning mechanism (8) is installed on the sealing cover (5) corresponding to the filter screen sleeve (7). The cleaning mechanism (8) includes an electric telescopic rod (801), a mounting box (802), a drive motor (803), a transmission rod (804), a scraper (805), and a plug (806). The rod (801) is fixedly installed on the upper surface of the sealing cover (5). The lower surface of the output shaft of the electric telescopic rod (801) is fixedly installed with an installation box (802). The lower side of the installation box (802) is equipped with a drive motor (803). The lower surface of the output shaft of the drive motor (803) is fixed with a transmission rod (804). The left and right sides of the transmission rod (804) are fixedly installed with scrapers (805) at positions corresponding to the filter screen sleeve (7). The lower surface of the transmission rod (804) is fixedly installed with a plug (806). The plug (806) matches the outlet of the first conical bucket (301). The right side wall of the tank (1) is fixedly installed with an air outlet pipe (9) near the upper side.

2. The coalbed methane filtration device according to claim 1, characterized in that: The slag discharge mechanism (3) includes a first conical hopper (301), a second conical hopper (302), and an electric slag discharge valve (303). The first conical hopper (301) and the second conical hopper (302) are fixedly installed on the inner wall of the tank (1) from top to bottom. The electric slag discharge valve (303) is fixedly installed on the lower surface of the second conical hopper (302).

3. The coalbed methane filtration device according to claim 1, characterized in that: The lower surface of the tank (1) is an open structure, and rectangular notches (10) are provided on both the front and rear side walls of the tank (1).

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