Drainage and pressure reduction device for coal bed gas exploration well

Abstract

The utility model relates to the technical field of coal bed gas exploration wells, in particular to a water drainage and pressure reduction device for a coal bed gas exploration well, which comprises an adapter, one end of the adapter is fixedly connected with a first liquid drainage pipe, one end of the first liquid drainage pipe is provided with a connecting seat, and the bottom of the connecting seat is fixedly connected with a crushing seat. And the outer surface of the crushing seat is sleeved with a sleeving frame. Through the arrangement of the adapter, the first drain pipe, the connecting seat, the crushing seat, the sleeving frame, the second drain pipe, the drain frame, the infusion pump, the supporting seat, the material suction side frame, the material suction filter screen and the crushing tool bit, the equipment can perform more uniform, stable and continuous drainage and pressure reduction operation of the coalbed methane exploration well; a worker firstly connects an adapter needing to be used to a connecting base and a liquid discharging frame through a first liquid discharging pipe and a second liquid discharging pipe, and a liquid extracting pump on the surface of a supporting base is started so that the liquid extracting pump can rapidly extract liquid from a crushing base at the bottom of the connecting base.

Description

Technical Field

[0001] The utility model relates to the technical field of coalbed methane exploration wells, in particular to a water drainage and pressure reduction device used in coalbed methane exploration wells. Background Art

[0002] Coalbed gas, also known as coal-bed methane, is a mixture of methane, carbon dioxide and nitrogen that escapes from coal and surrounding rocks. Gas is a harmful factor in coal mine production. It not only pollutes the air, but also can cause explosions and accidents when it encounters fire.

[0003] For example, the patent document with the announcement number CN 216277828 U discloses a drainage and pressure reduction device for coalbed methane exploration wells, wherein an electric pump body is fixedly installed on the top of the device body, the input pipe of the electric pump body is connected to a pumping pipe, the outer sleeve of the pumping pipe is provided with a soundproof sleeve, the liquid inlet end of the soundproof sleeve is connected to a crushing barrel, the output pipe of the electric pump body is connected to a drainage pipe, a control box is fixedly installed above the device body, and the input end of the electric pump body is electrically connected to the output end of the control box, and the top of the crushing barrel is connected to a barrel cover. The drainage and pressure reduction device for coalbed methane exploration wells described in the utility model can achieve more precise and efficient drainage, effectively improve the stability of the operation of the device, and bring better prospects for use.

[0004] However, in actual use, this structure can only realize one-way suction and drainage operations. When there are too many impurities in the coalbed water, blockage will occur, resulting in the pump suction being unable to perform suction operations evenly, which can easily cause pump fluctuation problems and make it impossible to perform uniform and stable suction operations. At the same time, the equipment cannot perform more efficient filter element replacement operations and cannot meet daily use needs. Therefore, it is urgent to design a drainage and pressure reduction device for coalbed methane exploration wells to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to provide a drainage and pressure reduction device for coalbed methane exploration wells, so as to solve the problem that the existing structure proposed in the above background technology can only realize one-way suction and drainage operation during actual use. When there are too many impurities in the coalbed water, blockage will occur, resulting in the pump suction force cannot be uniformly sucked, which can easily cause the pump to fluctuate and cannot perform uniform and stable suction operations. At the same time, the equipment cannot perform more efficient filter element replacement operations and cannot meet daily use needs.

[0006] To achieve the above object, the utility model provides the following technical solutions: a drainage and pressure reduction device for coalbed methane exploration wells, comprising an adapter, one end of which is fixedly connected to a first drainage pipe, one end of which is provided with a connecting seat, the bottom of which is fixedly connected to a crushing seat, and the outer surface of which is sleeved with a sleeve frame;

[0007] A second liquid discharge pipe, the other end of the adapter is fixedly connected to the second liquid discharge pipe, and one end of the second liquid discharge pipe is provided with a liquid discharge frame.

[0008] Preferably, a liquid pump is disposed inside the liquid drainage rack, and a bottom end of the liquid pump is fixedly connected to a support seat.

[0009] Preferably, two groups of twitching filter frames are movably connected inside the liquid drainage frame, and a filter element body is arranged inside the twitching filter frame.

[0010] Preferably, two sides of the movable filter frame are fixedly connected with limiting side plates, and a positioning center frame is provided between the two groups of the movable filter frames.

[0011] Preferably, a pumping groove is provided inside the liquid drainage rack, and a pipe connection port is provided at the top of the liquid drainage rack.

[0012] Preferably, the four sides of the sleeve frame are fixedly connected with suction side frames, the inner wall of the suction side frame is provided with a suction filter, and the interior of the crushing seat is provided with a crushing cutter head.

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

[0014] The drainage and pressure reduction device for coalbed methane exploration wells can make the equipment perform more uniform and stable continuous drainage and pressure reduction operations of coalbed methane exploration wells through the provided adapter, the first drainage pipe, the connecting seat, the crushing seat, the sleeve frame, the second drainage pipe, the drainage frame, the liquid pump, the support seat, the suction side frame, the suction filter and the crushing cutter head. In actual use, the staff first connects the adapter to be used to the connecting seat and the drainage frame through the first drainage pipe and the second drainage pipe respectively, starts the liquid pump on the surface of the support seat to make it drain from the bottom of the connecting seat. During the rapid pumping operation at the crushing seat, the entire sleeve frame penetrates into the water accumulation in the coalbed methane exploration well, and then performs a vertical through-type pumping operation from the suction filter of the suction side frame. The design of the four groups of suction side frames on the side of the sleeve frame ensures that the pumped liquid always remains stable and uniform. After that, the liquid that enters the crushing seat from the sleeve frame is rapidly crushed by the high-speed rotating crushing cutter head, and finally performs a uniform, stable and continuous pumping operation, thereby ensuring the stability of drainage and pressure reduction inside the coalbed methane exploration well, which reflects the practicality of the equipment design.

[0015] The drainage and pressure reduction device for coalbed methane exploration wells further improves the overall use effect of the equipment by means of the arranged adapter, the first drainage pipe, the second drainage pipe, the drainage rack, the pumping filter rack, the filter element body, the limiting side plate, the positioning center frame, the pumping groove and the connecting pipe port. In daily use, when the adapter, the first drainage pipe and the second drainage pipe are continuously pumping and draining water through the pumping pump and the crushing seat, the filter element body in the pumping filter rack inside the drainage rack can be used to filter out fine impurities in the sewage. At the same time, the two sets of pumping filter racks can be quickly pumped back and forth at the pumping groove inside the drainage rack, and the limiting side plate and the positioning center frame can be used to perform stable limiting operations, thereby realizing the rapid replacement operation of the filter element body, and finally performing a continuous and stable discharge operation from the connecting pipe port, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is an overall schematic diagram of the socket frame structure of the utility model;

[0018] Figure 3 It is an overall schematic diagram of the pumping filter frame structure of the utility model;

[0019] Figure 4 For this utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0020] In the figure: 1. adapter; 2. first drain pipe; 3. connecting seat; 4. crushing seat; 5. socket frame; 6. second drain pipe; 7. drain frame; 8. liquid pump; 9. support seat; 10. pumping filter frame; 11. filter element body; 12. limiting side plate; 13. positioning center frame; 14. pumping groove; 15. pipe connection port; 16. suction side frame; 17. suction filter screen; 18. crushing cutter head. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] A drainage and pressure reduction device for coalbed methane exploration wells, including an adapter 1, one end of the adapter 1 is fixedly connected to a first drainage pipe 2, one end of the first drainage pipe 2 is provided with a connecting seat 3, the bottom of the connecting seat 3 is fixedly connected to a crushing seat 4, the outer surface of the crushing seat 4 is sleeved with a sleeve frame 5, the four sides of the sleeve frame 5 are fixedly connected to a suction side frame 16, the inner wall of the suction side frame 16 is provided with a suction filter 17, and the interior of the crushing seat 4 is provided with a crushing cutter head 18. When the adapter 1, the first drainage pipe 2 and the second drainage pipe 6 are continuously sucked and drained through the suction pump 8 and the crushing seat 4, the filter element body 11 in the filter frame 10 can be pumped by the drainage frame 7 to filter out fine impurities in the sewage.

[0024] The second drainage pipe 6 and the other end of the adapter 1 are fixedly connected with the second drainage pipe 6, and a drainage frame 7 is provided at one end of the second drainage pipe 6. A liquid extraction pump 8 is provided inside the drainage frame 7, and a support seat 9 is fixedly connected to the bottom end of the liquid extraction pump 8. Two groups of pumping filter frames 10 are movably connected inside the drainage frame 7, and a filter element body 11 is provided inside the pumping filter frame 10. The two sides of the pumping filter frame 10 are fixedly connected with limited side plates 12, and a positioning center frame 13 is provided between the two groups of pumping filter frames 10. A pumping groove 14 is provided inside the drainage frame 7, and a pipe connection port 15 is provided at the top of the drainage frame 7. The liquid extraction pump 8 on the surface of the support seat 9 is started to perform a rapid liquid extraction operation from the crushing seat 4 at the bottom of the connecting seat 3. At this time, the sleeve frame 5 as a whole penetrates into the water accumulated in the coalbed methane exploration well, and then an up and down through-type liquid extraction operation is performed from the suction filter screen 17 of the suction side frame 16.

[0025] Working principle: When in use, the user first connects the adapter 1 to be used to the connecting seat 3 and the drainage frame 7 through the first drainage pipe 2 and the second drainage pipe 6 respectively, and starts the liquid pump 8 on the surface of the support seat 9 to enable it to perform a rapid liquid extraction operation from the crushing seat 4 at the bottom of the connecting seat 3. At this time, the sleeve frame 5 as a whole penetrates into the water accumulation in the coalbed methane exploration well, and then performs an up and down through-type liquid extraction operation from the suction filter 17 of the suction side frame 16. The design of the four groups of suction side frames 16 on the side of the sleeve frame 5 ensures that the liquid extraction always maintains a stable and uniform state. After that, the liquid entering the crushing seat 4 from the sleeve frame 5 is quickly crushed by the high-speed rotating crushing cutter head 18, and finally a uniform, stable and continuous extraction is performed. Operation, thereby ensuring the stability of drainage and pressure reduction inside the coalbed methane exploration well. In daily use, when the adapter 1, the first drainage pipe 2 and the second drainage pipe 6 are continuously pumping and draining water through the suction pump 8 and the crushing seat 4, the filter element body 11 in the filter frame 10 can be pumped inside the drainage frame 7 to filter out fine impurities inside the sewage. At the same time, the two groups of pumping filter frames 10 can be quickly pumped back and forth at the pumping groove 14 inside the drainage frame 7, and the limiting side plate 12 and the positioning center frame 13 can be used to perform a stable limiting operation, thereby realizing the rapid replacement operation of the filter element body 11, and finally performing a continuous and stable discharge operation from the connecting pipe 15. The above is the entire working principle of the utility model.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A drainage and pressure reduction device for a coalbed methane exploration well, comprising an adapter (1), characterized in that: One end of the adapter (1) is fixedly connected to a first liquid discharge pipe (2), one end of the first liquid discharge pipe (2) is provided with a connecting seat (3), the bottom of the connecting seat (3) is fixedly connected to a crushing seat (4), the outer surface of the crushing seat (4) is sleeved with a sleeve frame (5), the four sides of the sleeve frame (5) are fixedly connected to a suction side frame (16), the inner wall of the suction side frame (16) is provided with a suction filter (17), and the interior of the crushing seat (4) is provided with a crushing cutter head (18); A second liquid discharge pipe (6), the other end of the adapter (1) is fixedly connected to the second liquid discharge pipe (6), one end of the second liquid discharge pipe (6) is provided with a liquid discharge frame (7), the interior of the liquid discharge frame (7) is movably connected with two groups of twitching filter frames (10), and the interior of the twitching filter frame (10) is provided with a filter element body (11).

2. The drainage and pressure reduction device for coalbed methane exploration wells according to claim 1 is characterized in that: A liquid pump (8) is arranged inside the liquid drainage frame (7), and a support seat (9) is fixedly connected to the bottom end of the liquid pump (8).

3. The drainage and pressure reduction device for coalbed methane exploration wells according to claim 1 is characterized in that: The two sides of the movable filter frame (10) are fixedly connected with limiting side plates (12), and a positioning center frame (13) is arranged between two groups of the movable filter frames (10).

4. The drainage and pressure reduction device for coalbed methane exploration wells according to claim 1 is characterized in that: A pumping groove (14) is provided inside the liquid drainage frame (7), and a pipe connection port (15) is provided at the top end of the liquid drainage frame (7).

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