Deep coal-bed gas well drainage and mining device

Abstract

The utility model discloses a deep coal-bed gas well drainage and mining device, which belongs to the technical field of coal-bed gas mining and comprises a connecting component, a plugging component, a fixing component and a control valve, the plugging component is arranged in the connecting component, and the fixing component is arranged outside the control valve. The connecting assembly comprises a connecting pipe, a positioning hole, a first sealing groove, a cavity, two connecting blocks and a second sealing groove; according to the utility model, the valve body is moved into the connecting pipe, the baffle drives the sealing ring to move out of the second sealing groove, the valve body is communicated with the connecting pipe, and the rotating threaded pipe and the external thread are matched with each other to fix the valve body above the connecting pipe, so that the control valve can be quickly connected with the connecting pipe, the operation is simple, and the practicability is high. When the valve body is moved out of the connecting pipe, the baffle drives the sealing ring to move into the second sealing groove under the action of the torsion of the torsion spring, at the moment, the interior of the connecting pipe is blocked, and coal bed gas in the underground pipeline is not prone to leaking out through the connecting pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal bed gas mining, and in particular relates to a deep coal bed gas well drainage and mining device. Background Art

[0002] When deep coalbed methane is being mined, the connecting pipe connected to the pipeline buried in the ground can be connected to an external control valve, and then connected to the external equipment through the control valve.

[0003] However, the existing control valve needs to be connected to the connecting pipe through multiple bolts, which makes the operation more cumbersome. In addition, when the control valve needs to be inspected, the control valve needs to be removed from the top of the connecting pipe. At this time, the coalbed methane in the pipeline on the ground may leak from the inside to the outside air. Therefore, a deep coalbed methane well production device is needed to solve the above problems. Summary of the invention

[0004] The utility model aims to provide a deep coalbed methane well drainage device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep coalbed methane well drainage device, comprising a connecting component, a plugging component, a fixing component and a control valve, wherein the plugging component is arranged in the connecting component, and the fixing component is arranged outside the control valve, the connecting component comprises a connecting pipe, a positioning hole, a first sealing groove, a cavity, two connecting blocks and a second sealing groove, the outside of the connecting pipe is provided with an external thread, the cavity is opened in the connecting pipe, the positioning hole, the first sealing groove and the second sealing groove are all opened in the connecting pipe, and the two connecting blocks are both connected in the cavity, the plugging component comprises a baffle, a rotating rod, two torsion springs and a sealing ring, the rotating The moving rod is clamped in the baffle, and the rotating rod is rotatably connected in the two connecting blocks. The two torsion springs are sleeved on the outside of the same rotating rod. The ends of the two torsion springs that are far away from each other are respectively connected to the two connecting blocks, and the ends of the two torsion springs that are close to each other are connected to the baffle. A sealing ring is connected to the baffle, and the sealing ring is clamped in the second sealing groove. The control valve includes a valve body, a limit groove, a sealing ring and a positioning rod. The limit groove is opened outside the valve body, and the sealing ring and the positioning rod are both connected to the bottom of the valve body. The positioning rod is arranged below the sealing ring. The fixing assembly includes a rotating ring, which is rotatably connected in the limit groove, and a threaded tube is connected to the outside of the rotating ring.

[0006] As a preferred implementation, the positioning rod is arranged directly above the positioning hole, and the number of the positioning hole and the number of the positioning rod are both three.

[0007] As a preferred implementation, the shapes of the first sealing groove and the second sealing groove are both circular.

[0008] As a preferred implementation, the shapes of the sealing ring and the sealing ring are both circular.

[0009] As a preferred implementation manner, the sealing ring is arranged directly above the first sealing groove.

[0010] As a preferred embodiment, the threads inside the threaded pipe can match with the external threads provided on the outside of the connecting pipe.

[0011] As a preferred implementation, the positioning rod and the sealing ring are both arranged in the threaded tube.

[0012] As a preferred implementation, the positioning rod is arranged between the first sealing groove and the second sealing groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a plugging component, a control valve, a connecting component and a fixing component, the valve body is moved into the connecting pipe, the baffle drives the sealing ring to move out of the second sealing groove, the valve body is connected with the connecting pipe, when the threaded pipe contacts the connecting pipe, the rotating threaded pipe and the external thread cooperate with each other to fix the valve body above the connecting pipe, at this time the control valve can be quickly connected with the connecting pipe, the operation is simple, when the valve body is moved out of the connecting pipe, the baffle drives the sealing ring to move into the second sealing groove under the action of the torsion force of the torsion spring, at this time the inside of the connecting pipe is blocked, so that the coalbed methane in the underground pipeline is not easy to leak out through the connecting pipe;

[0015] The utility model is provided with a sealing ring, a first sealing groove, a threaded pipe and a connecting pipe. Since the threaded pipe and the connecting pipe are connected by a threaded structure, the threaded pipe threadedly connected to the outside of the connecting pipe can seal the valve body and the connecting pipe. Since the sealing ring moves into the first sealing groove, the sealing ring and the first sealing groove cooperate with each other to seal the gap between the valve body and the connecting pipe. The sealing ring, the first sealing groove, the threaded pipe and the connecting pipe cooperate with each other to double-seal the gap between the connecting pipe and the valve body, so that the valve body can be connected to the connecting pipe with high sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0021] Figure 6 For this utility model Figure 5 The enlarged structural diagram at C in the middle;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting pipe of the utility model from a top view.

[0023] In the figure: 1. connecting component; 11. connecting pipe; 12. positioning hole; 13. first sealing groove; 14. cavity; 15. connecting block; 16. second sealing groove; 2. blocking component; 21. baffle; 22. rotating rod; 23. torsion spring; 24. sealing ring; 3. fixing component; 31. rotating ring; 32. threaded pipe; 4. control valve; 41. valve body; 42. limit groove; 43. sealing ring; 44. positioning rod. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the embodiments.

[0025] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0026] See also Figure 1-7The utility model provides a deep coalbed methane well drainage device, including a connecting component 1, a plugging component 2, a fixing component 3 and a control valve 4. The plugging component 2 is arranged in the connecting component 1, and the fixing component 3 is arranged outside the control valve 4. The connecting component 1 includes a connecting pipe 11, a positioning hole 12, a first sealing groove 13, a cavity 14, two connecting blocks 15 and a second sealing groove 16. The outside of the connecting pipe 11 is provided with an external thread, the cavity 14 is opened in the connecting pipe 11, the positioning hole 12, the first sealing groove 13 and the second sealing groove 16 are all opened in the connecting pipe 11, and the two connecting blocks 15 are connected to the cavity 14. The assembly 2 includes a baffle 21, a rotating rod 22, two torsion springs 23 and a sealing ring 24. The rotating rod 22 is clamped in the baffle 21, and the rotating rod 22 is rotatably connected in the two connecting blocks 15. The two torsion springs 23 are sleeved outside the same rotating rod 22. The ends of the two torsion springs 23 that are far away are respectively connected to the two connecting blocks 15, and the ends of the two torsion springs 23 that are close to each other are connected to the baffle 21. By providing the torsion springs 23, when the valve body 41 is separated from the baffle 21, the baffle 21 can rotate around the rotating rod 22 under the action of the torsion of the torsion springs 23, and the rotating baffle 21 can drive the sealing ring 24 to move into the second sealing groove 16.

[0027] The baffle 21 is connected with a sealing ring 24, which is clamped in the second sealing groove 16. The control valve 4 includes a valve body 41, a limiting groove 42, a sealing ring 43 and a positioning rod 44. The limiting groove 42 is arranged outside the valve body 41, the sealing ring 43 and the positioning rod 44 are both connected below the valve body 41, and the positioning rod 44 is arranged below the sealing ring 43. The fixing assembly 3 includes a rotating ring 31, which is rotatably connected in the limiting groove 42, and a threaded tube 32 is connected outside the rotating ring 31. By setting the limiting groove 42 and the rotating ring 31, the limiting groove 42 can limit the rotating ring 31, and the threaded tube 32 connected to the rotating ring 31 can be limited outside the valve body 41. When the threaded tube 32 rotates, the rotating threaded tube 32 can drive the rotating ring 31 to rotate in the limiting groove 42.

[0028] The positioning rod 44 is arranged right above the positioning hole 12. The number of the positioning hole 12 and the positioning rod 44 are both three. By providing the positioning hole 12 and the positioning rod 44, when the three positioning rods 44 are all moved into the positioning hole 12, the three positioning rods 44 and the three positioning holes 12 cooperate with each other to limit the valve body 41, so that the valve body 41 is not easy to rotate under the action of the rotating threaded tube 32.

[0029] The shapes of the first sealing groove 13 and the second sealing groove 16 are both set to be circular, the shapes of the sealing ring 43 and the sealing ring 24 are both set to be circular, the sealing ring 43 is arranged just above the first sealing groove 13, the threads in the threaded tube 32 can match the external threads provided on the outside of the connecting tube 11, the positioning rod 44 and the sealing ring 43 are both arranged in the threaded tube 32, and by arranging the threaded tube 32 and the connecting tube 11, the threaded tube 32 threadedly connected to the outside of the connecting tube 11 can connect the valve body 41 to the top of the connecting tube 11;

[0030] The positioning rod 44 is arranged between the first sealing groove 13 and the second sealing groove 16. By setting the sealing ring 43, the first sealing groove 13, the threaded tube 32 and the connecting tube 11, since the threaded tube 32 and the connecting tube 11 are connected through a threaded structure, the threaded tube 32 threadedly connected to the outside of the connecting tube 11 can seal the valve body 41 and the connecting tube 11. Since the sealing ring 43 moves into the first sealing groove 13, the sealing ring 43 and the first sealing groove 13 cooperate with each other to seal the gap between the valve body 41 and the connecting tube 11. The sealing ring 43, the first sealing groove 13, the threaded tube 32 and the connecting tube 11 cooperate with each other to double seal the gap between the connecting tube 11 and the valve body 41, so that the valve body 41 can be connected to the connecting tube 11 with high sealing.

[0031] The working principle and use process of the utility model are as follows: when the control valve 4 needs to be connected with the connecting pipe 11, the valve body 41 is moved downward, and the valve body 41 moving downward contacts the baffle 21. The baffle 21 can drive the rotating rod 22 to rotate in the two connecting blocks 15 under the push of the valve body 41 moving downward, and the rotating baffle 21 drives the two torsion springs 23 to twist. When the bottom of the valve body 41 is completely moved into the cavity 14, the valve body 41 can continue to move downward, thereby driving the three positioning rods 44 to move into the three positioning holes 12. At the same time, the threaded tube 32 contacts the external thread, and the threaded tube 32 is rotated. The rotating threaded tube 32 drives the rotating ring 31 to rotate in the limiting groove 42. The rotating threaded tube 32 and the external thread cooperate with each other to fix the valve body 41 above the connecting pipe 11. In this process, the valve body 41 moving downward drives the sealing ring 43 to move into the first sealing groove 13.

[0032] When the control valve 4 needs to be inspected, the threaded tube 32 is reversed, and the rotating threaded tube 32 moves upward during the reversal process. The upwardly moving threaded tube 32 drives the valve body 41 to move upward through the rotating ring 31 and the limiting groove 42, and the downwardly moving valve body 41 drives the sealing ring 43 and the three positioning holes 12 to move upward, and the upwardly moving sealing ring 43 moves out of the first sealing groove 13, and the upwardly moving three positioning rods 44 move out of the three positioning holes 12. When the upwardly moving valve body 41 is disengaged from the baffle 21, the baffle 21 can drive the rotating rod 22 to rotate in the two connecting blocks 15 under the action of the torsion of the two torsion springs 23, and the rotating baffle 21 drives the sealing ring 24 to move into the second sealing groove 16, and the baffle 21, the sealing ring 24 and the second sealing groove 16 cooperate with each other to seal the connecting pipe 11.

[0033] 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 deep coalbed methane well drainage device, comprising a connecting component (1), a plugging component (2), a fixing component (3) and a control valve (4), characterized in that: The plugging component (2) is arranged in the connecting component (1), and the fixing component (3) is arranged outside the control valve (4). The connecting component (1) comprises a connecting pipe (11), a positioning hole (12), a first sealing groove (13), a cavity (14), two connecting blocks (15) and a second sealing groove (16). The connecting pipe (11) is provided with an external thread on the outside. The cavity (14) is provided in the connecting pipe (11). The positioning hole (12), the first sealing groove (13) and the second sealing groove (16) are all provided in the connecting pipe (11). The two connecting blocks (15) are connected to the cavity (14). The plugging component (2) comprises a baffle (21), a rotating rod (22), two torsion springs (23) and a sealing ring (24). The rotating rod (22) is clamped in the baffle (21). The rotating rod (22) is rotatably connected in the two connecting blocks (15). The two The torsion spring (23) is sleeved on the outside of the same rotating rod (22); the ends of the two torsion springs (23) that are far away from each other are respectively connected to the two connecting blocks (15); the ends of the two torsion springs (23) that are close to each other are connected to the baffle (21); the baffle (21) is connected to a sealing ring (24); the sealing ring (24) is clamped in the second sealing groove (16); the control valve (4) comprises a valve body (41), a limiting groove (42), a sealing ring (43) and a positioning rod (44); the limiting groove (42) is arranged outside the valve body (41); the sealing ring (43) and the positioning rod (44) are both connected below the valve body (41); the positioning rod (44) is arranged below the sealing ring (43); the fixing assembly (3) comprises a rotating ring (31); the rotating ring (31) is rotatably connected in the limiting groove (42); and the rotating ring (31) is connected to a threaded pipe (32) outside.

2. A deep coalbed methane well drainage device according to claim 1, characterized in that: The positioning rod (44) is arranged directly above the positioning hole (12), and there are three positioning holes (12) and three positioning rods (44).

3. A deep coalbed methane well drainage device according to claim 1, characterized in that: The shapes of the first sealing groove (13) and the second sealing groove (16) are both circular.

4. A deep coalbed methane well drainage device according to claim 1, characterized in that: The sealing ring (43) and the sealing ring (24) are both circular in shape.

5. A deep coalbed methane well drainage device according to claim 1, characterized in that: The sealing ring (43) is arranged directly above the first sealing groove (13).

6. A deep coalbed methane well drainage device according to claim 1, characterized in that: The threads inside the threaded tube (32) can match the external threads provided on the outside of the connecting tube (11).

7. A deep coalbed methane well drainage device according to claim 1, characterized in that: The positioning rod (44) and the sealing ring (43) are both arranged in the threaded tube (32).

8. A deep coalbed methane well drainage device according to claim 1, characterized in that: The positioning rod (44) is arranged between the first sealing groove (13) and the second sealing groove (16).

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