CN211598630U

CN211598630U - Underground purification device of coal bed gas well

Info

Publication number: CN211598630U
Application number: CN202020107846.6U
Authority: CN
Inventors: 唐立兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-29
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to the technical field of coal bed gas well extraction equipment, and discloses an underground purification device of a coal bed gas well, including a purification cylinder with a cylindrical structure and a circular chassis, the purification cylinder is of a hollow structure with an open bottom end, a plurality of evenly distributed liquid inlet holes are arranged on the outer cylinder wall of the purification cylinder, a ring groove matched with the purification cylinder is arranged on the upper surface of the chassis, the bottom end of the purification cylinder extends into the ring groove, the purification cylinder is connected with the ring groove through a clamping mechanism, the upper surface of the chassis is provided with a flexible screen with a cylindrical structure, a U-shaped frame is fixedly sleeved on the outer side of the flexible screen, the bottom end of the U-shaped frame is fixedly connected with the upper surface of the chassis, and the U-shaped frame is arranged at the inner side of the purification; the clamping mechanism comprises rectangular grooves symmetrically formed in the inner wall of the outer ring of the annular groove. The utility model discloses the convenience is fully washed flexible screen cloth to the convenience carries out purification treatment to the groundwater of coal seam gas well.

Description

Underground purification device of coal bed gas well

Technical Field

The utility model relates to a coal bed gas well row adopts equipment technical field, especially relates to a coal bed gas well's purifier in pit.

Background

As the shaft of the coal-bed gas well is produced, a large amount of fine coal dust and coal slime can be suspended in the shaft, and the coal dust and coal slime is suspended in shaft liquid and fished by a sand bailing pump and cannot be communicated with the shaft. And only through large-discharge well flushing, suspended coal dust and coal slime can be replaced out of a shaft, but because the coal reservoir is an under-pressure reservoir, large-discharge well flushing inevitably causes shaft sewage to leak into the coal reservoir, so that the reservoir is damaged.

From the working environment of the coal bed gas underground pump, the cleaner the shaft is, the more beneficial the normal work of the coal bed gas underground pump is, and thus the continuous and stable production of the coal bed gas well can be ensured. Therefore, on the premise of not damaging a reservoir, how to purify water in a shaft of the coal bed gas well, improve the working environment of a downhole pump and ensure the continuous and stable production of the coal bed gas well is a technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem and providing a coal bed gas well's purifier in pit.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the underground purification device of the coal bed gas well comprises a purification cylinder with a cylindrical structure and a circular base plate, and is characterized in that the purification cylinder is of a hollow structure with an opening at the bottom end, the outer cylinder wall of the purification cylinder is provided with a plurality of uniformly distributed liquid inlet holes, the upper surface of the base plate is provided with an annular groove matched with the purification cylinder, the bottom end of the purification cylinder extends into the annular groove, the purification cylinder is connected with the annular groove through a clamping mechanism, the upper surface of the base plate is provided with a flexible screen with a cylindrical structure, the outer side of the flexible screen is fixedly sleeved with a U-shaped frame, the bottom end of the U-shaped frame is fixedly connected with the upper surface of the base plate, and the U-shaped frame is arranged at the inner side of the purification cylinder;

the mechanism of clamping sets up the rectangular channel on ring channel outer lane inner wall including the symmetry, the tank bottom fixedly connected with spring of rectangular channel, the other end fixedly connected with and the rectangular channel sliding connection's of spring rectangle fixture block, the purifying cylinder be close to on the lateral wall of bottom the symmetry seted up with rectangle fixture block assorted draw-in groove, the one end that the spring was kept away from to the rectangle fixture block extends to the draw-in groove and sets up, one side fixedly connected with pull rod of draw-in groove is kept away from to the rectangle fixture block, the other end of pull rod passes the spring and runs through the tank bottom of rectangular channel and outwards extends, and the tank bottom sliding connection of pull rod and.

Preferably, the outer side wall of the U-shaped frame is symmetrically and fixedly connected with guide blocks, guide grooves matched with the guide blocks are symmetrically formed in the inner wall of the purifying cylinder, the guide grooves are arranged for bottom openings, and the guide blocks are connected with the guide grooves in a sliding mode.

Preferably, the top end of the purification cylinder is symmetrically and fixedly connected with hanging rings, and steel wire ropes are fixedly connected to the hanging rings.

Preferably, the lower surface of the chassis is fixedly connected with a plurality of evenly distributed balancing weights, and the balancing weights are arranged in a conical shape.

Preferably, one end of the pull rod, which is far away from the rectangular fixture block, is fixedly connected with a pull ring.

Preferably, a ball groove is formed in one side, close to the bottom of the guide groove, of the guide block, a ball is installed in the ball groove, one end, far away from the bottom of the ball groove, of the ball penetrates through a groove opening of the ball groove and extends outwards, and the ball is connected to the bottom of the guide groove in a rolling mode.

Compared with the prior art, the utility model provides a coal bed gas well's purifier in pit possesses following beneficial effect:

the underground purifying device of the coal-bed gas well is characterized in that the purifying cylinder is placed in a shaft of the coal-bed gas well by arranging the purifying cylinder, a chassis, a liquid inlet hole, an annular groove, a clamping mechanism, a flexible screen and a U-shaped frame, so that the liquid level in the shaft is over the top end of the purifying cylinder, the purifying cylinder is kept standing for a certain time, water mixed with coal dust and coal slime in the shaft enters the purifying cylinder through the liquid inlet hole, the flexible screen adsorbs and captures the coal dust and coal slime, the purifying cylinder is taken out of the shaft, the purifying cylinder is conveniently separated from the annular groove on the chassis by the clamping mechanism, the flexible screen on the U-shaped frame is washed by clean water, thereby facilitating the full washing of the coal dust and the coal slime captured on the flexible screen, ensuring the subsequent capturing effect of the flexible screen, and after the washing is finished, the purification cylinder is connected with the chassis through the clamping mechanism, and then the purification cylinder is arranged in the shaft, so that the operation is repeated, and the underground water of the coal-bed gas well is conveniently purified.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses the convenience is fully washed flexible screen cloth to the convenience carries out purification treatment to the groundwater of coal seam gas well.

Drawings

Fig. 1 is a schematic structural diagram of an underground purification device of a coal bed gas well provided by the present invention;

fig. 2 is a schematic structural diagram of a purification cylinder of an underground purification device of a coal bed gas well, which is provided by the utility model;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B in fig. 1.

In the figure: the device comprises a purification cylinder 1, a chassis 2, a liquid inlet hole 3, an annular groove 4, a flexible screen 5, a U-shaped frame 6, a rectangular groove 7, a spring 8, a rectangular clamping block 9, a clamping groove 10, a pull rod 11, a guide block 12, a guide groove 13, a hanging ring 14, a steel wire rope 15, a balancing weight 16, a pull ring 17, a ball groove 18 and balls 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, an underground purification device of a coal bed gas well comprises a purification cylinder 1 with a cylindrical structure and a circular chassis 2, wherein the purification cylinder 1 is of a hollow structure with an opening at the bottom end, the outer cylinder wall of the purification cylinder 1 is provided with a plurality of uniformly distributed liquid inlet holes 3, the upper surface of the chassis 2 is provided with an annular groove 4 matched with the purification cylinder 1, the bottom end of the purification cylinder 1 extends into the annular groove 4, the purification cylinder 1 is connected with the annular groove 4 through a clamping mechanism, the upper surface of the chassis 2 is provided with a flexible screen 5 with a cylindrical structure, the outer side of the flexible screen 5 is fixedly sleeved with a U-shaped frame 6, the bottom end of the U-shaped frame 6 is fixedly connected with the upper surface of the chassis 2, and the U-shaped frame 6 is arranged at the inner side;

the clamping mechanism comprises rectangular grooves 7 symmetrically arranged on the inner wall of the outer ring of the annular groove 4, the bottoms of the rectangular grooves 7 are fixedly connected with springs 8, the other ends of the springs 8 are fixedly connected with rectangular clamping blocks 9 in sliding connection with the rectangular grooves 7, the outer side wall, close to the bottom end, of the purification cylinder 1 is symmetrically provided with clamping grooves 10 matched with the rectangular clamping blocks 9, one end, far away from the springs 8, of each rectangular clamping block 9 extends into the corresponding clamping groove 10, one side, far away from the corresponding clamping groove 10, of each rectangular clamping block 9 is fixedly connected with a pull rod 11, the other end of each pull rod 11 penetrates through the corresponding spring 8 and extends outwards through the bottom of the corresponding rectangular groove 7, the pull rods 11 are in sliding connection with the bottoms of the rectangular grooves 7, the purification cylinder 1 is placed in a shaft of the coal-bed gas well, the liquid level in the shaft does not pass through the top end of the purification cylinder 1, standing for a certain time, taking out the purifying cylinder 1 from the shaft, pulling the pull rod 11 to separate the rectangular fixture block 9 from the clamping groove 10, thereby conveniently separating the purifying cylinder 1 from the annular groove 4 on the chassis 2, flushing the flexible screen 5 on the U-shaped frame 6 with clear water, thereby facilitating the full washing of the coal dust and the coal slime captured on the flexible screen 5, ensuring the subsequent capturing effect of the flexible screen 5, and after the washing is finished, pulling the pull rod 11 to drive the rectangular clamping block 9 to slide into the rectangular groove 7 and compress the spring 8, inserting the bottom end of the purifying cylinder 1 into the annular groove 4 of the chassis 2, rotating the purifying cylinder 1, when the rectangular clamping block 9 corresponds to the clamping groove 10, the spring 8 is reset to clamp the rectangular clamping block 9 and the clamping groove 10, therefore, the installation between the purification cylinder 1 and the chassis 2 is conveniently finished, and the purification cylinder 1 is arranged in the shaft repeatedly, so that the underground water of the coal-bed gas well is conveniently purified.

Symmetry fixedly connected with guide block 12 on the lateral wall of U type frame 6, the guide way 13 that matches with guide block 12 is seted up to the symmetry on the inner wall of purifying cylinder 1, and guide way 13 sets up for the bottom opening, guide block 12 and guide way 13 sliding connection, and when guide block 12 on the U type frame 6 slided along the guide way 13 on the purifying cylinder 1 inner wall, rectangle fixture block 9 was corresponding with draw-in groove 10 to the location of easy to assemble.

The top end of the purifying cylinder 1 is symmetrically and fixedly connected with hanging rings 14, and steel wire ropes 15 are fixedly connected to the hanging rings 14, so that the purifying cylinder 1 is conveniently driven to be placed in a shaft.

The lower fixed surface on chassis 2 is connected with a plurality of evenly distributed's balancing weight 16, and balancing weight 16 is the toper setting, conveniently drives and purifies a section of thick bamboo 1 and sinks in the pit shaft, guarantees stability.

One end of the pull rod 11 far away from the rectangular clamping block 9 is fixedly connected with a pull ring 17, so that the pull rod 11 is conveniently driven to slide.

The ball groove 18 has been seted up to the guide block 12 one side that is close to the guide way 13 tank bottom, and installs ball 19 in the ball groove 18, and the one end that ball 19 kept away from the ball groove 18 tank bottom passes the notch of ball groove 18 and outwards extends, and roll connection is at the tank bottom of guide way 13, effectively reduces the frictional force between guide block 12 and the guide way 13.

In the utility model, the purifying cylinder 1 is placed in the shaft of the coal bed gas well, the liquid level in the shaft is enabled to be over the top end of the purifying cylinder 1, the water mixed with the coal dust and coal slime in the shaft enters the purifying cylinder 1 through the liquid inlet hole 3, the flexible screen 5 adsorbs and collects the coal dust and coal slime, the purifying cylinder 1 is kept still for a certain time, the purifying cylinder 1 is taken out from the shaft, the pull rod 11 is pulled to separate the rectangular clamping block 9 from the clamping groove 10, thereby the purifying cylinder 1 is conveniently separated from the annular groove 4 on the chassis 2, the flexible screen 5 on the U-shaped frame 6 is washed by clear water, thereby the coal dust and coal slime collected on the flexible screen 5 are conveniently and fully washed, the subsequent collecting effect of the flexible screen 5 is ensured, after the washing is finished, the pull rod 11 is pulled to drive the rectangular clamping block 9 to slide into the rectangular groove 7 and compress the spring 8, the bottom end of the purifying cylinder 1 is spliced with the annular groove 4 on the chassis, the spring 8 resets to make the rectangular clamping block 9 and the clamping groove 10 clamped, so that the installation between the purifying cylinder 1 and the chassis 2 is conveniently completed, the purifying cylinder 1 is arranged in the shaft, and the operation is repeated, so that the underground water of the coal-bed gas well is conveniently purified.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An underground purification device of a coal bed gas well comprises a purification cylinder (1) with a cylindrical structure and a circular base plate (2), it is characterized in that the purifying cylinder (1) is a hollow structure with an opening at the bottom end, the outer cylinder wall of the purifying cylinder (1) is provided with a plurality of liquid inlet holes (3) which are uniformly distributed, the upper surface of the chassis (2) is provided with an annular groove (4) matched with the purification cylinder (1), the bottom end of the purification cylinder (1) extends into the annular groove (4), and the purifying cylinder (1) is connected with the annular groove (4) through a clamping mechanism, the upper surface of the chassis (2) is provided with a flexible screen (5) with a cylindrical structure, the outer side of the flexible screen (5) is fixedly sleeved with a U-shaped frame (6), the bottom end of the U-shaped frame (6) is fixedly connected with the upper surface of the chassis (2), and the U-shaped frame (6) is arranged on the inner side of the purification cylinder (1);

clamping mechanism sets up rectangular channel (7) on ring channel (4) outer lane inner wall including the symmetry, tank bottom fixedly connected with spring (8) of rectangular channel (7), the other end fixedly connected with of spring (8) and rectangular channel (7) sliding connection's rectangle fixture block (9), purify a section of thick bamboo (1) and be close to on the lateral wall of bottom the symmetry seted up with rectangle fixture block (9) assorted draw-in groove (10), the one end that spring (8) were kept away from in rectangle fixture block (9) extends to and sets up in draw-in groove (10), one side fixedly connected with pull rod (11) of draw-in groove (10) are kept away from in rectangle fixture block (9), the tank bottom that the other end of pull rod (11) passed spring (8) and run through rectangular channel (7) outwards extends, and the tank bottom sliding connection of pull rod (11) and rectangular channel (7).

2. The underground purification device for the coal-bed gas well is characterized in that guide blocks (12) are symmetrically and fixedly connected to the outer side wall of the U-shaped frame (6), guide grooves (13) matched with the guide blocks (12) are symmetrically formed in the inner wall of the purification cylinder (1), the guide grooves (13) are arranged in a manner of being opened at the bottom ends, and the guide blocks (12) are slidably connected with the guide grooves (13).

3. A downhole cleaning device for a coal-bed gas well according to claim 1, characterized in that the top end of the cleaning cylinder (1) is symmetrically and fixedly connected with a hanging ring (14), and a steel wire rope (15) is fixedly connected to the hanging ring (14).

4. A downhole cleaning device for a coal-bed gas well according to claim 1, characterized in that a plurality of evenly distributed balancing weights (16) are fixedly connected to the lower surface of the chassis (2), and the balancing weights (16) are arranged in a conical shape.

5. A downhole cleaning device for a coal-bed gas well according to claim 1, characterized in that a pull ring (17) is fixedly connected to one end of the pull rod (11) far away from the rectangular fixture block (9).

6. A downhole cleaning device for a coal-bed gas well according to claim 2, characterized in that a ball groove (18) is formed in one side of the guide block (12) close to the bottom of the guide groove (13), a ball (19) is mounted in the ball groove (18), and one end of the ball (19) far away from the bottom of the ball groove (18) penetrates through the notch of the ball groove (18) and extends outwards and is connected with the bottom of the guide groove (13) in a rolling manner.