Drainage structure for coal bed gas development

Abstract

The utility model discloses a drainage structure for coal bed gas development, and relates to the technical field of coal bed gas development, the drainage structure for coal bed gas development comprises a gas collecting pipe, the bottom of the gas collecting pipe is provided with a connecting pipe; according to the drainage structure for coal bed gas development, when a filter screen is replaced, a user holds a sliding plate by hand, so that the sliding plate drives a limiting column to move along a sliding groove and the interior of a moving hole, and meanwhile, the limiting column moves along the interior of a limiting groove till the limiting column is separated from the interior of the limiting groove; then a handle on the outer side of the filtering support is pulled outwards, so that the filtering support drives the filtering net to be pulled outwards along the interior of the mounting opening, the filtering net is convenient to replace, when the filtering support and the filtering net are mounted, a limiting groove is fixed through a limiting column, the structure is simple, operation is convenient and fast, and the filtering support can be rapidly and manually disassembled; the efficiency of replacing the filter screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal bed gas development, in particular to a drainage structure used for coal bed gas development. 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. Drainage structures are required during its development process.

[0003] An existing patent discloses a drainage device for coalbed methane development (publication number: CN219654735U). During use, the coalbed methane in the gas collecting pipe can be prevented from leaking out from the filter installation port when the filter is replaced. This can effectively save the leakage of coalbed methane when the filter is replaced. However, when replacing the filter, the bolts need to be disassembled, and the limit plate cannot be quickly disassembled manually, thereby making it impossible to quickly replace the filter, which is time-consuming and labor-intensive. Therefore, the utility model proposes a drainage structure for coalbed methane development. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a drainage structure for coalbed methane development, which solves the problems in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a drainage structure for coalbed methane development, including a gas collecting pipe, a connecting pipe is arranged at the bottom of the gas collecting pipe, a water storage tank is arranged at the bottom of the connecting pipe, a valve motor is arranged on the outside of the connecting pipe, a drainage pipe is arranged at the bottom of the water storage tank, a solenoid valve is arranged on the outside of the drainage pipe, a filter bracket and a filter screen are arranged in the middle of the water storage tank, a mounting opening is opened in the middle of the water storage tank, and a limited position structure is arranged between the filter bracket and the mounting opening;

[0006] The limiting structure includes a slide groove, a movable hole is opened on one side of the slide groove, a limiting groove is opened on the inner side of the installation port, a slide plate is arranged inside the slide groove, a limiting column is arranged on one side of the slide plate, and a supporting spring is arranged on the other side of the slide plate.

[0007] As a further technical solution of the utility model, the gas collecting pipe is connected to the connecting pipe, the connecting pipe is connected to the water tank, the output end of the valve motor is provided with a rotating rod and a valve plate, and the drain pipe is connected to the water tank.

[0008] As a further technical solution of the utility model, the filter bracket and the filter screen are fixedly connected, the filter bracket and the installation port are adapted to each other, and the filter bracket and the installation port are connected via a limiting structure.

[0009] As a further technical solution of the utility model, the number of the slide grooves is two groups and they are symmetrically distributed, the slide grooves are rectangular structures, the number of the movable holes is equal to the number of the slide grooves, and the movable holes penetrate the slide grooves and extend to the outside of the filter bracket.

[0010] As a further technical solution of the utility model, the number of the limit grooves is equal to the number of the movable holes, and the apertures of the limit grooves and the movable holes are equal, the limit grooves correspond to the movable holes, the thickness of the slide plate is greater than the thickness of the slide groove, and the slide plate and the slide groove are adapted to each other.

[0011] As a further technical solution of the utility model, one side edge of the slide is an arc-shaped structure, the slide is fixedly connected to the limit column, the limit column is adapted to the movable hole and the limit groove, the number of the support springs is twice the number of the slides, and the two ends of the support springs are respectively fixedly connected to the slide and the slide groove.

[0012] The utility model provides a drainage structure for coalbed methane development. Compared with the prior art, it has the following beneficial effects:

[0013] A drainage structure for coalbed methane development. Through the setting of a limiting structure, when replacing the filter, the user holds a skateboard, so that the skateboard drives the limiting column to move along the inside of the slide groove and the movable hole, and the limiting column moves along the inside of the limiting groove until the limiting column is separated from the inside of the limiting groove. During the movement of the skateboard, the supporting spring is compressed, and then the handle on the outside of the filter bracket is pulled outward, so that the filter bracket drives the filter to be pulled outward along the inside of the installation port until the filter bracket is completely pulled out, thereby facilitating the replacement of the filter. When the filter bracket and the filter are installed, the limiting groove is fixed by the limiting column. The structure is simple and the operation is convenient. The filter bracket can be quickly disassembled manually to improve the efficiency of replacing the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a drainage structure for coalbed methane development;

[0015] Figure 2 Another perspective view of a drainage structure used in coal seam methane development;

[0016] Figure 3 A partial exploded view of a drainage structure used in coal seam gas development;

[0017] Figure 4 A drainage structure for coalbed methane development Figure 3 A is an enlarged view of the middle image.

[0018] In the figure: 1. gas collecting pipe; 2. connecting pipe; 3. water storage tank; 4. valve motor; 5. drain pipe; 6. solenoid valve; 7. filter bracket; 8. filter screen; 9. limiting structure; 91. slide groove; 92. moving hole; 93. limiting groove; 94. slide plate; 95. limiting column; 96. support spring; 10. installation port. 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 1-4 The utility model provides a technical solution of a drainage structure for coalbed methane development: a drainage structure for coalbed methane development, comprising a gas collecting pipe 1, a connecting pipe 2 is arranged at the bottom of the gas collecting pipe 1, a water storage tank 3 is arranged at the bottom of the connecting pipe 2, a valve motor 4 is arranged on the outside of the connecting pipe 2, a drainage pipe 5 is arranged at the bottom of the water storage tank 3, a solenoid valve 6 is arranged on the outside of the drainage pipe 5, a filter bracket 7 and a filter screen 8 are arranged in the middle of the water storage tank 3, an installation opening 10 is opened in the middle of the water storage tank 3, and a limited position structure 9 is arranged between the filter bracket 7 and the installation opening 10;

[0021] Among them, the limiting structure 9 includes a slide groove 91, a movable hole 92 is opened on one side of the slide groove 91, a limiting groove 93 is opened on the inner side of the installation port 10, a slide plate 94 is arranged inside the slide groove 91, a limiting column 95 is arranged on one side of the slide plate 94, and a support spring 96 is arranged on the other side of the slide plate 94.

[0022] See also Figure 1-3 The gas collecting pipe 1 is connected with the connecting pipe 2, the connecting pipe 2 is connected with the water tank 3, the output end of the valve motor 4 is provided with a rotating rod and a valve plate, the drain pipe 5 is connected with the water tank 3, the filter bracket 7 and the filter screen 8 are fixedly connected, the filter bracket 7 and the installation port 10 are adapted, and the filter bracket 7 and the installation port 10 are connected by a limiting structure 9, which is conducive to filtering the water flow. When replacing the filter screen 8, the connecting pipe 2 is sealed to avoid gas leakage.

[0023] See also Figure 1-4The number of slide grooves 91 is two groups and is symmetrically distributed. The slide groove 91 is a rectangular structure. The number of moving holes 92 is equal to that of the slide grooves 91, and the moving hole 92 penetrates the slide groove 91 and extends to the outside of the filter bracket 7. The number of limiting grooves 93 is equal to the number of moving holes 92, and the aperture of the limiting grooves 93 is equal to that of the moving holes 92. The limiting grooves 93 correspond to the moving holes 92. The thickness of the slide plate 94 is greater than the thickness of the slide groove 91. The slide plate 94 is adapted to the slide groove 91. One side edge of the slide plate 94 is an arc structure. The slide plate 94 is fixedly connected to the limiting column 95. The limiting column 95 is adapted to the moving hole 92 and the limiting groove 93. The number of support springs 96 is twice the number of slide plates 94. The two ends of the support spring 96 are respectively fixedly connected to the slide plate 94 and the slide groove 91, which is conducive to the limiting and fixing of the filter bracket 7.

[0024] The working principle of the utility model is as follows: when the filter bracket 7 is replaced, the output end of the valve motor 4 drives the rotating rod and the valve plate to rotate, thereby blocking the connecting pipe 2, and then the limit of the filter bracket 7 is released by the limit structure 9, so that the filter screen 8 is replaced.

[0025] It should be noted that, through the setting of the limiting structure 9, when replacing the filter 8, the user holds the slide plate 94, so that the slide plate 94 drives the limiting column 95 to move along the inside of the slide groove 91 and the movable hole 92, and at the same time the limiting column 95 moves along the inside of the limiting groove 93 until the limiting column 95 is separated from the inside of the limiting groove 93. During the movement of the slide plate 94, the support spring 96 is compressed, and then the handle on the outside of the filter bracket 7 is pulled outward, so that the filter bracket 7 drives the filter 8 to be pulled outward along the inside of the installation port 10 until the filter bracket 7 is pulled out, thereby facilitating the replacement of the filter 8. When the filter bracket 7 and the filter 8 are installed, the limiting groove 93 is fixed by the limiting column 95. The structure is simple and the operation is convenient. The filter bracket 7 can be quickly disassembled manually to improve the efficiency of replacing the filter 8.

Claims

1. A drainage structure for coalbed methane development, comprising a gas collecting pipe (1), It is characterized in that A connecting pipe (2) is provided at the bottom of the gas collecting pipe (1), a water storage tank (3) is provided at the bottom of the connecting pipe (2), a valve motor (4) is provided on the outside of the connecting pipe (2), a drain pipe (5) is provided at the bottom of the water storage tank (3), a solenoid valve (6) is provided on the outside of the drain pipe (5), a filter bracket (7) and a filter screen (8) are provided in the middle of the water storage tank (3), an installation opening (10) is provided in the middle of the water storage tank (3), and a limiting structure (9) is provided between the filter bracket (7) and the installation opening (10); The limiting structure (9) comprises a slide groove (91), a movable hole (92) is provided on one side of the slide groove (91), a limiting groove (93) is provided on the inner side of the mounting opening (10), a slide plate (94) is provided inside the slide groove (91), a limiting column (95) is provided on one side of the slide plate (94), and a supporting spring (96) is provided on the other side of the slide plate (94).

2. A drainage structure for coalbed methane development according to claim 1, It is characterized in that The gas collecting pipe (1) is connected to the connecting pipe (2), the connecting pipe (2) is connected to the water storage tank (3), the output end of the valve motor (4) is provided with a rotating rod and a valve plate, and the drainage pipe (5) is connected to the water storage tank (3).

3. A drainage structure for coalbed methane development according to claim 1, It is characterized in that The filter support (7) and the filter screen (8) are fixedly connected, the filter support (7) and the mounting opening (10) are adapted to each other, and the filter support (7) and the mounting opening (10) are connected via a limiting structure (9).

4. A drainage structure for coalbed methane development according to claim 1, It is characterized in that The number of the slide grooves (91) is two groups and they are symmetrically distributed. The slide grooves (91) are rectangular structures. The number of the movable holes (92) is equal to that of the slide grooves (91), and the movable holes (92) penetrate the slide grooves (91) and extend to the outside of the filter bracket (7).

5. A drainage structure for coalbed methane development according to claim 1, It is characterized in that The number of the limiting grooves (93) is equal to the number of the moving holes (92), and the apertures of the limiting grooves (93) and the moving holes (92) are equal. The limiting grooves (93) and the moving holes (92) correspond to each other. The thickness of the slide plate (94) is greater than the thickness of the slide groove (91), and the slide plate (94) and the slide groove (91) are adapted to each other.

6. A drainage structure for coalbed methane development according to claim 1, It is characterized in that One side edge of the slide plate (94) is an arc-shaped structure. The slide plate (94) is fixedly connected to the limiting column (95). The limiting column (95) is adapted to the moving hole (92) and the limiting groove (93). The number of the support springs (96) is twice the number of the slide plates (94). The two ends of the support springs (96) are respectively fixedly connected to the slide plate (94) and the slide groove (91).

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