Coal bed gas development drainage device

Abstract

The utility model discloses a drainage device for coal bed gas development. The drainage device comprises a base, a bottom plate is installed at the top end of the base, telescopic structures are installed on the two sides of the top end of the bottom plate, a valve structure is installed on one side of a pipe body, a pump body is installed at one end of the pipe body, a water inlet pipe is installed on one side of the pump body, and an inlet is formed in one side of the water inlet pipe. The valve body is installed on one side of the pipe body, when water passes through the valve body, the impact force of the water can burst through the valve plate, the connecting rods are annularly distributed on one side of the valve plate and can abut against the connecting plate, and therefore a space is formed between the valve plate and the connecting plate, and the water can pass through the valve plate through the outer side of the valve plate and then pass through the valve body to be discharged through the pipe body. When water flows back, the spring between the valve plate and the connecting plate has elasticity, and the elasticity of the spring can drive the valve plate to block the valve body, so that the water cannot pass through the valve plate, the situation of water backflow can be prevented, and the purpose that the coal bed gas development drainage device can conveniently prevent water backflow is achieved.

Description

Technical Field

[0001] This utility model relates to the field of coalbed methane development technology, and in particular to a coalbed methane development drainage device. Background Technology

[0002] Coalbed methane, also known as coal seam gas, is a mixture of methane, carbon dioxide, and nitrogen that escapes from coal and surrounding rocks. Coalbed methane refers to hydrocarbon gas with methane as the main component stored in coal seams. It is a associated mineral resource of coal and belongs to unconventional natural gas. Coalbed methane development is the entire process after the discovery of a coalbed methane reservoir, including reserve calculation, evaluation and site selection, development plan preparation, capacity construction, and production. When developing coalbed methane, it is necessary to drain the internal water, which requires a coalbed methane development drainage device.

[0003] To address this, Chinese patent application number CN220135227U discloses a drainage device for coalbed methane development, relating to the technical field of drainage devices for coalbed methane development. The device includes a gas transmission pipe, one end of which is fixedly connected to a left connector. This utility model provides a drainage device for coalbed methane development, which features a central filter element in the middle of a water storage tank. A rotating disk is fixedly connected to the end of a central rotating rod. During use, after a period of time, impurities accumulate on the surface of the central filter element, requiring timely cleaning. To clean it, the rotating disk is rotated, causing the central rotating rod and the central filter element to rotate. This causes impurities on the top of the central filter element to fall to the bottom of the water storage tank due to rotation and gravity. The bottom support plate is then removed for cleaning. This completes the cleaning of the central filter element, solving the problem of the previous need to replace, remove, clean, and maintain the central filter element, which was time-consuming and labor-intensive.

[0004] The aforementioned drainage device for coalbed methane development solves the problem that the intermediate filter element needed to be replaced, removed for cleaning and maintenance, which was time-consuming and labor-intensive. However, during use, backflow may occur in the pipe body during drainage, affecting water discharge.

[0005] The height of the device needs to be adjusted during use, and the device is difficult to adapt to different situations, so its adaptability is not strong enough. Utility Model Content

[0006] The purpose of this invention is to provide a drainage device for coalbed methane development, which solves the shortcomings of existing drainage devices for coalbed methane development that are difficult to prevent water backflow and difficult to adjust the height of the device.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a coalbed methane development drainage device, including a base;

[0008] A base plate is installed at the top of the base, and telescopic structures are installed on both sides of the top of the base plate. A tube is installed at the top of the telescopic structure.

[0009] A valve structure is installed on one side of the pipe body, and the valve structure includes a valve body, a spring and a valve plate. The valve body is installed on one side of the pipe body, a spring is installed inside the valve body, a valve plate is installed on one side of the spring, and a flange is installed on one side of the pipe body.

[0010] A connecting pipe is installed on one side of the flange, a pump body is installed at one end of the pipe, a water inlet pipe is installed on one side of the pump body, and an inlet is installed on one side of the water inlet pipe.

[0011] In use, water first enters the inlet pipe through the inlet. The pump works by draining water through the inlet pipe and the pipe body. The pipe body can be connected to different connecting pipes through the flange. After the water passes through the filter box, the filter screen inside the filter box can filter the water to prevent impurities from being discharged. When the filter screen needs to be replaced, you can grab the handle to open the cover and replace the internal filter screen.

[0012] Furthermore, the telescopic structure includes a first telescopic rod, a second telescopic rod, and a fixing screw. The first telescopic rod is installed at the top of the base plate, and the second telescopic rod is installed at the top of the first telescopic rod. A fixing screw is installed on one side of the second telescopic rod. The extension and retraction of the first and second telescopic rods can adjust the height of the device.

[0013] Furthermore, the first telescopic rod has a sliding groove inside, and the bottom end of the second telescopic rod has a slider. The first telescopic rod and the second telescopic rod form a sliding structure, and the second telescopic rod can slide inside the first telescopic rod.

[0014] Furthermore, the outer side wall of the fixing screw is uniformly provided with external threads, and the inner side wall of the first telescopic rod is uniformly provided with internal threads that cooperate with the external threads. The fixing screw and the first telescopic rod are threadedly connected, and the second telescopic rod can be fixed by tightening the fixing screw.

[0015] Furthermore, a connecting rod is installed on the outer side of one end of the valve plate, and a connecting plate is installed on the inner end of the valve body away from the valve plate. The connecting rod can support the valve plate.

[0016] Furthermore, the spring is helical in shape, and the valve plate and the connecting plate are elastically connected by the spring, which is elastic.

[0017] Furthermore, a filter structure is installed on one side of the water inlet pipe, and the filter structure includes a filter box, a filter screen, a cover, and a handle. The filter box is installed on one side of the water inlet pipe, a cover is installed on the top of the filter box, a handle is installed on the top of the cover, and a filter screen is installed at the bottom of the cover, so that water can be filtered through the filter screen.

[0018] The advantages of the coalbed methane development drainage device provided by this utility model are: during use, the valve body and valve plate can prevent backflow of drainage, and the height of the device can be adjusted by sliding the first telescopic rod and the second telescopic rod, allowing the device to adapt to different situations.

[0019] By installing a valve body on one side of the pipe, when water passes through the valve body, the impact force of the water will open the valve plate. The connecting rod is distributed in a ring on one side of the valve plate and can hold the connecting plate. This creates space between the valve plate and the connecting plate, allowing water to pass through the outside of the valve plate, through the valve body, and out of the pipe. When water flows back, the spring between the valve plate and the connecting plate is elastic. The elasticity of the spring will cause the valve plate to block the valve body, preventing water from passing through the valve plate. This prevents water from flowing back, thus achieving the purpose of the drainage device in coalbed methane development to prevent water backflow.

[0020] By installing a first telescopic rod at the top of the top plate, the first telescopic rod and the second telescopic rod form a sliding structure. The second telescopic rod can slide inside the first telescopic rod. The sliding of the second telescopic rod can adjust the height of the pipe body, allowing the device to adapt to different situations. When it is necessary to fix the second telescopic rod, the fixing screws can be tightened to fix the second telescopic rod, thereby achieving the purpose of facilitating the adjustment of the height of the coalbed methane development drainage device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a frontal cross-sectional view of the present invention.

[0023] Figure 3 For the present utility model Figure 2 Enlarged cross-sectional view of point A in the middle section;

[0024] Figure 4 This is a three-dimensional structural diagram of the telescopic structure of this utility model;

[0025] Figure 5 This is a partial cross-sectional view of the valve structure of this utility model.

[0026] The following are the annotations in the diagram: 1. Pipe body; 2. Connecting pipe; 3. Flange; 4. Telescopic structure; 401. First telescopic rod; 402. Second telescopic rod; 403. Fixing screw; 5. Base; 6. Valve structure; 601. Valve body; 602. Connecting plate; 603. Spring; 604. Connecting rod; 605. Valve plate; 7. Base plate; 8. Filter structure; 801. Filter box; 802. Filter screen; 803. Cover; 804. Handle; 9. Water inlet pipe; 10. Inlet; 11. Pump body. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 One embodiment of this utility model is a coalbed methane development drainage device, which includes a base 5.

[0029] A base plate 7 is installed on the top of the base 5. Telescopic structures 4 are installed on both sides of the top of the base plate 7. The telescopic structure 4 includes a first telescopic rod 401, a second telescopic rod 402 and a fixing screw 403. The first telescopic rod 401 is installed on the top of the base plate 7. A sliding groove is provided inside the first telescopic rod 401. A slider is provided at the bottom of the second telescopic rod 402. The first telescopic rod 401 and the second telescopic rod 402 constitute a sliding structure.

[0030] The top of the first telescopic rod 401 is equipped with a second telescopic rod 402. A fixing screw 403 is installed on one side of the second telescopic rod 402. External threads are evenly provided on the outer side wall of the fixing screw 403. Internal threads that cooperate with the external threads are evenly provided on the inner side wall of the first telescopic rod 401. The fixing screw 403 and the first telescopic rod 401 are threadedly connected.

[0031] See attached document Figure 1-2 and attached Figure 4 As shown, the first telescopic rod 401 and the second telescopic rod 402 form a sliding structure. The second telescopic rod 402 can slide inside the first telescopic rod 401. The sliding of the second telescopic rod 402 can adjust the height of the tube body 1, allowing the device to adapt to different situations. When it is necessary to fix the second telescopic rod 402, the fixing screw 403 can be tightened to fix the second telescopic rod 402.

[0032] The top of the telescopic structure 4 is fitted with a tube body 1, and a valve structure 6 is fitted on one side of the tube body 1. The valve structure 6 includes a valve body 601, a spring 603, and a valve plate 605. The valve body 601 is fitted on one side of the tube body 1. The spring 603 is installed inside the valve body 601. The spring 603 is spiral in shape. The valve plate 605 and the connecting plate 602 are elastically connected by the spring 603.

[0033] A valve plate 605 is installed on one side of the spring 603, a connecting rod 604 is installed on the outer side of one end of the valve plate 605, and a connecting plate 602 is installed at one end of the valve body 601 away from the valve plate 605.

[0034] See attached document Figure 1-2 and attached Figure 5 As shown, when water passes through valve body 601, the impact force of the water will open valve plate 605. Connecting rod 604 is distributed in a ring on one side of valve plate 605 and can hold against connecting plate 602. In this way, there will be space between valve plate 605 and connecting plate 602. Water can pass through the outside of valve plate 605, through valve body 601, and then through pipe 1 to be discharged. When water flows back, spring 603 between valve plate 605 and connecting plate 602 is elastic. The elasticity of spring 603 will drive valve plate 605 to block valve body 601, preventing water from passing through valve plate 605. This can prevent water from flowing back.

[0035] A flange 3 is installed on one side of the pipe body 1, and a connecting pipe 2 is installed on one side of the flange 3. A pump body 11 is installed at one end of the pipe body 1. A water inlet pipe 9 is installed on one side of the pump body 11. A filter structure 8 is installed on one side of the water inlet pipe 9. The filter structure 8 includes a filter box 801, a filter screen 802, a cover 803, and a handle 804. The filter box 801 is installed on one side of the water inlet pipe 9. A cover 803 is installed at the top of the filter box 801. A handle 804 is installed at the top of the cover 803. A filter screen 802 is installed at the bottom of the cover 803. An inlet 10 is installed on one side of the water inlet pipe 9.

[0036] See attached document Figure 1-3 As shown, water can enter the inlet pipe 9 through inlet 10. The pump body 11 can drain water through the inlet pipe 9 and the pipe body 1. The pipe body 1 can be connected to different connecting pipes 2 through flange 3. After the water passes through the filter box 801, the filter screen 802 inside the filter box 801 can filter the water to prevent impurities from being discharged. When the filter screen 802 needs to be replaced, the handle 804 can be grasped to open the cover 803 and replace the internal filter screen 802.

[0037] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A drainage device for coalbed methane development, comprising a base (5); Its features are: The base (5) has a base plate (7) installed at its top, and telescopic structures (4) are installed on both sides of the top of the base plate (7). The telescopic structure (4) has a tube (1) installed at its top. A valve structure (6) is installed on one side of the pipe body (1), and the valve structure (6) includes a valve body (601), a spring (603) and a valve plate (605). The valve body (601) is installed on one side of the pipe body (1), and a spring (603) is installed inside the valve body (601). A valve plate (605) is installed on one side of the spring (603), and a flange (3) is installed on one side of the pipe body (1). A connecting pipe (2) is installed on one side of the flange (3), a pump body (11) is installed at one end of the pipe body (1), a water inlet pipe (9) is installed on one side of the pump body (11), and an inlet (10) is installed on one side of the water inlet pipe (9).

2. The coalbed methane development drainage device according to claim 1, characterized in that: The telescopic structure (4) includes a first telescopic rod (401), a second telescopic rod (402) and a fixing screw (403). The first telescopic rod (401) is installed on the top of the base plate (7). The second telescopic rod (402) is installed on the top of the first telescopic rod (401). The fixing screw (403) is installed on one side of the second telescopic rod (402).

3. A coalbed methane development drainage device according to claim 2, characterized in that: The first telescopic rod (401) has a sliding groove inside, and the bottom end of the second telescopic rod (402) has a slider. The first telescopic rod (401) and the second telescopic rod (402) form a sliding structure.

4. A coalbed methane development drainage device according to claim 2, characterized in that: The outer side wall of the fixing screw (403) is uniformly provided with external threads, and the inner side wall of the first telescopic rod (401) is uniformly provided with internal threads that cooperate with the external threads. The fixing screw (403) and the first telescopic rod (401) are threadedly connected.

5. A coalbed methane development drainage device according to claim 1, characterized in that: A connecting rod (604) is installed on the outer side of one end of the valve plate (605), and a connecting plate (602) is installed on one end of the valve body (601) away from the valve plate (605).

6. A coalbed methane development drainage device according to claim 1, characterized in that: The spring (603) is spiral in shape, and the valve plate (605) and the connecting plate (602) are elastically connected by the spring (603).

7. A coalbed methane development drainage device according to claim 1, characterized in that: A filter structure (8) is installed on one side of the water inlet pipe (9), and the filter structure (8) includes a filter box (801), a filter screen (802), a cover (803) and a handle (804). The filter box (801) is installed on one side of the water inlet pipe (9), the top of the filter box (801) is equipped with a cover (803), the top of the cover (803) is equipped with a handle (804), and the bottom of the cover (803) is equipped with a filter screen (802).

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