A device for monitoring the shape of a coal mine gas drainage pipeline and a monitoring method thereof

Abstract

The present invention relates to the technical field of monitoring of gas drainage pipelines, and discloses a device for monitoring the shape of a coal mine gas drainage pipeline, including a pipeline. A side plate is fixedly welded to the left side of the pipeline. A plurality of connecting rods are fixedly connected to the inner side wall of the side plate. A support ring is fixedly connected between the ends of the plurality of connecting rods. A shaft rod is fixedly connected to the inner side wall of the support ring. A circular ring is rotatably connected to the right side of the outer side wall of the shaft rod. A fan plate is rotatably connected to the outer side wall of the circular ring; when a staff member holds the gear ring and rotates it, when rotating clockwise, it pulls the arc-shaped rack to move. Since both ends of the moving block are connected to the arc-shaped rack and the fan plate, the fan plate rotates along the shaft rod. The fan plate can be expanded from a sector to a circle. The expanded circular fan plate blocks the pipeline, which can prevent gas from flowing to the right side of the pipeline, facilitating the prevention of gas from flowing out in case of an emergency. When rotating the gear ring counterclockwise, the size of the gas flow channel in the pipeline is adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of gas drainage pipeline monitoring, and specifically to a monitoring device and a monitoring method for the morphology of a coal mine gas drainage pipeline. Background Art

[0002] Coal mine gas drainage is to drill holes into coal seams and gas accumulation areas, connect the drill holes to special pipelines, and use drainage equipment to drain the gas in the coal seams and goafs to the ground for utilization; or discharge it into the main return air current.

[0003] Draining gas is not only an important measure to reduce the gas emission during mining, prevent gas overrun and accumulation, and prevent gas explosion and coal and gas outburst accidents, but also can turn harm into benefit and be developed and utilized as an associated resource of coal.

[0004] During the external wire drainage process, the safety monitoring of pipelines is very important and is related to the life safety of workers. Traditional pipeline monitoring needs to be strengthened. Now, a monitoring device and a monitoring method for the morphology of a coal mine gas drainage pipeline are provided. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a monitoring device and a monitoring method for the morphology of a coal mine gas drainage pipeline, and solves the problems raised in the above background art.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solution: A morphological monitoring device for a coal mine gas drainage pipeline, including a pipeline, a side plate is fixedly welded to the left side of the pipeline, a plurality of connecting rods are fixedly connected to the inner side wall of the side plate, a support ring is fixedly connected between the ends of the plurality of connecting rods, a shaft rod is fixedly connected to the inner side wall of the support ring, a circular ring is rotatably connected to the right side of the outer side wall of the shaft rod, a fan-shaped plate is rotatably connected to the outer side wall of the circular ring, and one side of the fan-shaped plate is fixed to the outer side wall of the circular ring. A sleeve ring is fixedly connected to the inner side wall of the pipeline, a track is opened on the inner side wall of the sleeve ring, a fixed block is fixedly connected to the upper part of the inner side wall of the track, and the bottom end of the fixed block is fixed to the upper part of the fan-shaped plate. A through groove is opened on the outer side wall of the pipeline, and the through groove communicates with the track. A moving block is slidably connected to the lower part of the inside of the track, and the moving block penetrates into the inside of the through groove. The top end of the moving block is fixed to the lower part of the fan-shaped plate. An arc-shaped rack is fixedly connected to the bottom end of the moving block. A gear ring is rotatably connected to the outer side wall of the pipeline through a bearing. The inside of the gear ring is meshed with the arc-shaped rack. An indicating strip is fixedly connected to the bottom end of the gear ring. A ring piece is fixedly connected to the outer side wall of the pipeline near the side plate. The right side surface of the ring piece has an angular scale. A marking strip is fixedly connected to the upper right side of the ring piece. A plurality of shaft plates are fixedly connected to the front of the outer side wall of the pipeline. A clamping plate is fixedly connected to the inside of the two shaft plates through a rotating shaft. A transparent shell is detachably connected to the front of the pipeline. Connecting plates are integrally formed on the upper surface and the lower surface of the transparent shell. Rubber sheets are fixedly pasted on the rear surfaces of the connecting plates. Grooves are opened on the front surfaces of the connecting plates, and the clamping plate is clamped inside the grooves. A gas monitoring sensor is installed inside the transparent shell. A monitoring system is fixedly connected to the upper right side of the front surface of the transparent shell.

[0009] Preferably, laser emitters are respectively fixedly connected to the left and right sides of the upper part of the outer side wall of the pipeline. Two laser receivers are fixedly connected to the middle position of the upper part of the outer side wall of the pipeline, and the two laser receivers are distributed back to back. The laser receivers are adapted to the laser emitters. A monitoring box is fixedly connected to the rear of the outer side wall of the pipeline. A control system and an alarm module are installed inside the monitoring box.

[0010] Preferably, the fan-shaped plate surrounds the periphery of the circular ring, and the fan-shaped plate can be unfolded into a circle or a sector.

[0011] Preferably, the gear ring is circular, the inner side of the gear ring has teeth, and the inner side wall of the gear ring is meshed with the arc-shaped rack.

[0012] Preferably, the rear surface of the transparent shell is open, and the gas monitoring sensor is electrically connected to the monitoring system.

[0013] Preferably, it is characterized in that: there are four clamping plates in total, and a handle is fixedly connected to the front surface of each clamping plate, and the handle is U-shaped in top view.

[0014] Preferably, the track is in a ring structure, the through groove is in a ring structure with a notch, and the moving block is slidably connected inside the track and the through groove.

[0015] A method for monitoring the shape of a coal mine gas drainage pipeline includes the following operation steps:

[0016] S1. The laser emitter, the laser receiver, the monitoring box and the components in the monitoring box are installed at designated positions. The laser emitter is adapted to the laser receiver. Once the light emitted by the laser emitter is not received by the laser receiver, the alarm module will make a sound, indicating that the pipeline has undergone large deformation.

[0017] S2. The transparent shell is installed in front of the pipeline. Since the pipeline is formed by bending and welding metal sheets, there are welding points in front of the pipeline. The transparent shell wraps the welding points. When the gas monitoring sensor detects gas, the monitoring system makes a sound, indicating that the pipeline has leaked gas.

[0018] S3. The staff holds the gear ring and rotates it. The gear ring meshes with the arc-shaped rack, so that the moving block moves in the fixed block and the through groove. When the gear ring is rotated clockwise, the lower part of the fan plate gradually rotates upward to the left, and the fan plate can be closed into a circle. When the gear ring is rotated counterclockwise, the fan plate gradually opens at this time.

[0019] S4. The indicating strip faces the ring piece, and the staff observes the angle between the indicating strip and the marking strip to judge whether the fan plate is opened.

[0020] (III) Beneficial effects

[0021] The present invention provides a device and a monitoring method for monitoring the shape of a coal mine gas drainage pipeline, having the following beneficial effects:

[0022] (1) In the present invention, the staff holds the gear ring and rotates it. When rotating clockwise, the arc-shaped rack is pulled to move its position. Since both ends of the moving block are connected to the arc-shaped rack and the fan plate, the fan plate rotates along the shaft rod. The fan plate can expand from a sector to a circle. The expanded circular fan plate blocks the pipeline, which can prevent the gas from flowing to the right side of the pipeline, facilitating the maintenance of the pipeline in case of an emergency to avoid the outflow of gas. In addition, when rotating the gear ring counterclockwise, the size of the gas flow channel in the pipeline can be adjusted. Moreover, even if the staff cannot see the situation inside the pipeline, they can understand the size of the gas flow channel according to the indicator bar.

[0023] (2) In the present invention, since the cylindrical pipeline has welding points during production, the transparent shell is attached to the outside of the pipeline. The staff holds the handle and rotates the clamping plate, and multiple clamping plates can fix the transparent shell on the pipeline. The sealing performance between the transparent shell and the pipeline is good. Once the welding point of the pipeline leaks gas, the gas will leak into the transparent shell, and the gas monitoring sensor can detect the gas. Then, the monitoring system emits a sound, enabling timely detection of gas leakage.

[0024] (3) In the present invention, a laser emitter, a laser receiver, a monitoring box, an alarm module, and a control system are installed on the straight pipeline. When the pipeline is greatly bent, the light emitted by the laser emitter will not be received by the laser receiver. Then, the control system will control the alarm module to emit a sound, enabling the detection of pipeline deformation, which is conducive to subsequent maintenance or replacement by the staff in a timely manner to avoid accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic partial right view structural diagram of the present invention;

[0027] Figure 3 is a schematic right view structural diagram of the ring piece in the present invention;

[0028] Figure 4 is the present invention Figure 1 schematic diagram of the external structure of the pipeline in;

[0029] Figure 5 is the present invention Figure 4 left view structural diagram.

[0030] In the figure: 1, ring piece; 2, bearing; 3, fixing block; 4, gear ring; 5, laser emitter; 6, laser receiver; 7, track; 8, circular ring; 9, side plate; 10, collar; 11, fan plate; 12, connecting rod; 13, support ring; 14, shaft rod; 15, moving block; 16, arc rack; 17, pipeline; 18, control system; 19, monitoring box; 20, alarm module; 21, indicating bar; 22, identification bar; 23, connecting plate; 24, transparent shell; 25, gas monitoring sensor; 26, monitoring system; 27, clamping plate; 28, shaft plate; 29, handle; 30, groove; 31, rubber sheet; 32, through groove. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1-5As shown in the figure, the present invention provides a technical solution: a morphological monitoring device for a coal mine gas drainage pipeline, including a pipeline 17. A side plate 9 is welded and fixed to the left side of the pipeline 17. A plurality of connecting rods 12 are fixedly connected to the inner side wall of the side plate 9. A support ring 13 is fixedly connected between the ends of the plurality of connecting rods 12. A shaft rod 14 is fixedly connected to the inner side wall of the support ring 13. A circular ring 8 is rotatably connected to the right side of the outer side wall of the shaft rod 14. A fan plate 11 is rotatably connected to the outer side wall of the circular ring 8, and one side of the fan plate 11 is fixed to the outer side wall of the circular ring 8. A sleeve ring 10 is fixedly connected to the inner side wall of the pipeline 17. A track 7 is opened on the inner side wall of the sleeve ring 10. A fixing block 3 is fixedly connected to the upper part of the inner side wall of the track 7, and the bottom end of the fixing block 3 is fixed to the upper part of the fan plate 11. A through groove 32 is opened on the outer side wall of the pipeline 17, and the through groove 32 communicates with the track 7. A moving block 15 is slidably connected to the lower part of the inside of the track 7, and the moving block 15 penetrates into the inside of the through groove 32. The top end of the moving block 15 is fixed to the lower part of the fan plate 11. An arc-shaped rack 16 is fixedly connected to the bottom end of the moving block 15. A gear ring 4 is rotatably connected to the outer side wall of the pipeline 17 through a bearing 2. The inside of the gear ring 4 is meshed with the arc-shaped rack 16. An indicating strip 21 is fixedly connected to the bottom end of the gear ring 4. A ring piece 1 is fixedly connected to the outer side wall of the pipeline 17 near the side plate 9. The right side surface of the ring piece 1 has an angle scale. A marking strip 22 is fixedly connected to the upper right side of the ring piece 1. A plurality of shaft plates 28 are fixedly connected to the front of the outer side wall of the pipeline 17. A clamping plate 27 is fixedly connected to the inside of the two shaft plates 28 through a rotating shaft. A transparent shell 24 is detachably connected to the front of the pipeline 17. Connecting plates 23 are integrally formed on the upper surface and the lower surface of the transparent shell 24. A rubber sheet 31 is adhesively fixed to the rear surface of the connecting plate 23. A groove 30 is opened on the front surface of the connecting plate 23, and the clamping plate 27 is clamped inside the groove 30. A gas monitoring sensor 25 is installed inside the transparent shell 24. A monitoring system 26 is fixedly connected to the upper right side of the front surface of the transparent shell 24.

[0033] In this embodiment, the transparent shell 24 can be detached from the pipeline 17; the electrical components on the monitoring device are powered by an external power supply for use.

[0034] Furthermore, laser emitters 5 are respectively fixedly connected to the upper left and right sides of the outer side wall of the pipeline 17. Two laser receivers 6 are fixedly connected to the middle position above the outer side wall of the pipeline 17, and the two laser receivers 6 are distributed back to back. The laser receivers 6 are adapted to the laser emitters 5. A monitoring box 19 is fixedly connected to the rear of the outer side wall of the pipeline 17. A control system 18 and an alarm module 20 are installed inside the monitoring box 19. When the pipeline 17 undergoes a large bend, the light emitted by the laser emitter 5 will not be received by the laser receiver 6. Furthermore, the control system 18 will control the alarm module 20 to emit a sound, so as to know that the pipeline 17 is deformed, which is beneficial for subsequent staff to repair or replace it in time to avoid accidents.

[0035] Further, the fan plate 11 surrounds the outer periphery of the circular ring 8. The fan plate 11 can be unfolded into a circular shape or a sector shape. The fan plate 11 is folded from high-quality PVC material. The shape of the fan plate 11 is the same as the fan surface of the paper fan of ancient scholars. The lower part of the fan plate 11 can be rotated to the upper part. At this time, the fan plate 11 is circular. The fan plate 11 can also be opened counterclockwise, and the opened passage can allow gas to flow through.

[0036] Further, the gear ring 4 is in a circular ring shape. The inner side of the gear ring 4 has teeth. The inner side wall of the gear ring 4 is meshed and connected with an arc-shaped rack 16. When the gear ring 4 rotates, it can drive the arc-shaped rack 16 to move, and further the moving block 15 moves its position.

[0037] Further, the rear surface of the transparent shell 24 is open. The gas monitoring sensor 25 is electrically connected to the monitoring system 26. The rear of the transparent shell 24 has the same arc as the outer wall of the pipeline 17. The left and right sides, the upper and lower sides, and the front of the transparent shell 24 are all sealed. The transparent shell 24 wraps the welding point of the pipeline 17 during production. When gas leaks at the welding point, it can be known in time through the gas monitoring sensor 25.

[0038] Further, there are a total of four clamping plates 27. The front surface of each clamping plate 27 is fixedly connected with a handle 29. The top view of the handle 29 is in a U shape. The clamping plate 27 is buckled on the groove 30 of the connecting plate 23, so that the transparent shell 24 is fixed on the pipeline 17.

[0039] Further, the track 7 is in a ring structure, the through groove 32 is in a ring structure with a notch, and the moving block 15 is slidably connected inside the track 7 and the through groove 32 together.

[0040] A method for monitoring the form of a coal mine gas drainage pipeline includes the following operation steps:

[0041] S1. The laser emitter 5, the laser receiver 6, the monitoring box 19 and the components inside the monitoring box 19 are installed at designated positions. The laser emitter 5 is adapted to the laser receiver 6. Once the light emitted by the laser emitter 5 is not received by the laser receiver 6, the alarm module 20 will make a sound, proving that the pipeline 17 has undergone a large deformation.

[0042] S2. The transparent shell 24 is installed in front of the pipeline 17. Since the pipeline 17 is bent and welded by metal sheets, there are welding points in front of the pipeline 17. The transparent shell 24 wraps the welding points. When the gas monitoring sensor 25 detects gas, the monitoring system 26 makes a sound, proving that the pipeline 17 has a gas leak.

[0043] S3. The staff holds the gear ring 4 and rotates it. The gear ring 4 meshes with the arc rack 16, causing the moving block 15 to move in the fixed block 3 and the through slot 32. When the gear ring 4 is rotated clockwise, the lower part of the fan plate 11 gradually rotates upward to the left, enabling the fan plate 11 to close into a circle. When the gear ring 4 is rotated counterclockwise, the fan plate 11 gradually opens at this time.

[0044] S4. The indicating bar 21 faces the ring piece 1. By observing the angle between the indicating bar 21 and the marking bar 22, the staff can determine whether the fan plate 11 is open.

[0045] In summary, the working process of the present invention is as follows.

[0046] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring the morphology of a coal mine gas drainage pipeline, including a pipeline (17), characterized in that: On the left side of the pipe (17), a side plate (9) is fixedly welded. On the inner side wall of the side plate (9), a plurality of connecting rods (12) are fixedly connected. Between the ends of the plurality of connecting rods (12), a support ring (13) is fixedly connected. On the inner side wall of the support ring (13), a shaft rod (14) is fixedly connected. On the right side of the outer side wall of the shaft rod (14), a ring (8) is rotatably connected. On the outer side wall of the ring (8), a fan plate (11) is rotatably connected, and one side of the fan plate (11) is fixed to the outer side wall of the ring (8). On the inner side wall of the pipe (17), a collar (10) is fixedly connected. On the inner side wall of the collar (10), a track (7) is provided. Above the inner side wall of the track (7), a fixed block (3) is fixedly connected, and the bottom end of the fixed block (3) is fixed to the upper part of the fan plate (11). On the outer side wall of the pipe (17), a through groove (32) is provided, and the through groove (32) is communicated with the track (7). Below the inside of the track (7), a moving block (15) is slidably connected, and the moving block (15) penetrates into the inside of the through groove (32). The top end of the moving block (15) is fixed to the lower part of the fan plate (11). The bottom end of the moving block (15) is fixedly connected with an arc-shaped rack (16). On the outer side wall of the pipe (17), a gear ring (4) is rotatably connected through a bearing (2). The inside of the gear ring (4) is meshed with the arc-shaped rack (16). The bottom end of the gear ring (4) is fixedly connected with an indicating bar (21). On the outer side wall of the pipe (17), on one side close to the side plate (9), a ring piece (1) is fixedly connected. On the right side surface of the ring piece (1), angle scales are provided. Above the right side of the ring piece (1), a marking bar (22) is fixedly connected. In front of the outer side wall of the pipe (17), a plurality of shaft plates (28) are fixedly connected. Inside two of the shaft plates (28), a clamping plate (27) is fixedly connected through a rotating shaft. In front of the pipe (17), a transparent shell (24) is detachably connected. On the upper surface and the lower surface of the transparent shell (24), connecting plates (23) are integrally formed. On the rear surface of the connecting plate (23), a rubber sheet (31) is adhesively fixed. On the front surface of the connecting plate (23), a groove (30) is provided, and the clamping plate (27) is stuck inside the groove (30). Inside the transparent shell (24), a gas monitoring sensor (25) is installed. On the right side of the front surface of the transparent shell (24), a monitoring system (26) is fixedly connected.

2. The coal mine gas drainage pipeline morphology monitoring device according to claim 1, characterized in that: On the upper left and right sides of the outer side wall of the pipe (17), laser emitters (5) are respectively fixedly connected. In the middle position above the outer side wall of the pipe (17), two laser receivers (6) are fixedly connected, and the two laser receivers (6) are distributed back to back. The laser receivers (6) are adapted to the laser emitters (5). On the rear side of the outer side wall of the pipe (17), a monitoring box (19) is fixedly connected. Inside the monitoring box (19), a control system (18) and an alarm module (20) are installed.

3. The coal mine gas drainage pipeline morphology monitoring device according to claim 2, characterized in that: The fan plate (11) surrounds the periphery of the ring (8), and the fan plate (11) can be unfolded into a circular or sector shape.

4. The coal mine gas drainage pipeline morphology monitoring device according to claim 3, characterized in that: The gear ring (4) is in a circular ring shape, and the inner side of the gear ring (4) has teeth. The inner side wall of the gear ring (4) is meshed and connected with the arc rack (16).

5. The morphological monitoring device for a coal mine gas drainage pipeline according to claim 4, wherein: The rear surface of the transparent shell (24) is open, and the gas monitoring sensor (25) is electrically connected to the monitoring system (26).

6. The coal mine gas drainage pipeline morphology monitoring device and its monitoring method according to claim 5, characterized in that: There are a total of four clamping plates (27). A handle (29) is fixedly connected to the front surface of each clamping plate (27), and the handle (29) is U-shaped in top view.

7. The coal mine gas drainage pipeline shape monitoring device according to claim 6, characterized in that: The track (7) is in a ring structure, the through groove (32) is in a ring structure with a notch, and the moving block (15) is slidably connected inside the track (7) and the through groove (32).

8. A method for monitoring the shape of a coal mine gas drainage pipeline, which is applied to the device for monitoring the shape of the coal mine gas drainage pipeline described in claim 7, and is characterized in that: It includes the following operation steps: S1. The laser emitter (5), the laser receiver (6), the monitoring box (19) and the components inside the monitoring box (19) are installed at designated positions. The laser emitter (5) is adapted to the laser receiver (6). Once the light emitted by the laser emitter (5) is not received by the laser receiver (6), the alarm module (20) will make a sound, proving that the pipeline (17) has undergone large deformation. S2. The transparent shell (24) is installed in front of the pipeline (17). Since the pipeline (17) is formed by bending and welding metal sheets, there are welding points in front of the pipeline (17). The transparent shell (24) wraps the welding points. When the gas monitoring sensor (25) detects gas, the monitoring system (26) makes a sound, proving that the pipeline (17) has gas leakage. S3. The staff holds the gear ring (4) and rotates it. The gear ring (4) meshes with the arc rack (16), so that the moving block (15) moves in the fixed block (3) and the through groove (32). When the gear ring (4) is rotated clockwise, the lower part of the fan plate (11) gradually rotates upward to the left, and the fan plate (11) can be closed into a circular shape. When the gear ring (4) is rotated counterclockwise, the fan plate (11) gradually opens at this time. S4. The indicating strip (21) faces the ring piece (1). The staff observes the angle between the indicating strip (21) and the marking strip (22) to judge whether the fan plate (11) is opened.

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