A gas control system for sealing reserved pipes

Abstract

This invention discloses a gas control system for sealing pre-reserved pipes, comprising a pre-reserved pipe, connecting ring plates, side sealing devices, a central sealing device, and a storage and adjustment device. The storage and adjustment device is rotatably mounted on the outer wall of the central sealing device. Two side sealing devices are symmetrically fixedly installed on both ends of the storage and adjustment device. Two connecting ring plates are respectively fixedly installed on the outer end faces of the two side sealing devices, and the outer ring of the connecting ring plate is fixedly connected to the inner wall of the pre-reserved pipe. This invention controls the sealing unit to seal or open the pre-reserved pipe channel through the side sealing devices. The storage and adjustment device controls the side sealing devices to seal or open the pre-reserved pipe channel and stores magnetorheological fluid. The rotation of the storage and adjustment device delivers the magnetorheological fluid to the central sealing device, where it solidifies under magnetic force within the central sealing device, sealing the pre-reserved pipe channel and providing secondary sealing force to prevent micro-leakage.

Description

Technical Field

[0001] This invention belongs to the field of gas control technology, and specifically provides a gas control system for sealing and plugging reserved pipes. Background Technology

[0002] Mine gas is a harmful gas mainly composed of methane, or sometimes methane alone, found in mines. It is a gas that is generated during the formation and metamorphism of coal. During underground coal mining, methane pre-installation pipes are typically installed to facilitate emergency methane control. In the field of coal mine methane control, methane drainage is the core technology for preventing methane explosions and realizing the resource utilization of coalbed methane. As an important component of the methane drainage system, the sealing effect of the pre-installation pipe directly affects drainage efficiency and mine safety. Traditional pre-installation pipe sealing technologies mainly rely on mechanical sealing devices or single-material filling, which suffer from insufficient sealing performance, poor dynamic adaptability, and lag in response, making it difficult to achieve real-time sealing enhancement. Therefore, it is necessary to provide a methane control pre-installation pipe sealing control system to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a gas control system for sealing and plugging reserved pipes.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a gas control reserved pipe sealing control system, comprising a reserved pipe, connecting ring plates, side sealing devices, central sealing devices, and storage and adjustment devices. The central sealing device is cylindrical in shape. The storage and adjustment devices are rotatably mounted on the outer wall of the central sealing device. Two side sealing devices are symmetrically fixedly installed on the two end faces of the storage and adjustment devices. Two connecting ring plates are respectively fixedly installed on the outer end faces of the two side sealing devices, and the outer ring of the connecting ring plate is fixedly connected to the inner wall of the reserved pipe.

[0005] Furthermore, the side sealing device includes a central ring, sealing units, connecting rods, and a rotating ring. Two central rings are symmetrically distributed. One central ring is fixedly connected to the inner ring of the connecting ring plate, and the other central ring is fixedly connected to the end face of the central sealing device. There is a gap between the two central rings. A shaft is assembled between the two central rings. Sealing units are evenly assembled in a ring between the two central rings, and one end of the sealing unit is rotatably assembled onto the shaft. The other end of each sealing unit is rotatably assembled with one end of a connecting rod, and the other end of the connecting rod is rotatably assembled between the rotating ring and the connecting ring plate. An annular pressure plate is fixedly installed on the end face of the rotating ring through a hydraulic shaft structure. The annular pressure plate is movable between the rotating ring and the storage adjustment device, and the annular pressure plate is in contact with the storage adjustment device.

[0006] Furthermore, the central blocking device includes a connecting ring, a fixing component, and a sliding arc block. The fixing component is fixedly installed between the two connecting rings, and two channels are left between the connecting rings, one above the other. The two sliding arc blocks are slidably assembled on the fixing component, and the sliding arc blocks are used to block the channels.

[0007] Furthermore, the fixing component includes a fixing arc block and a connecting arc plate. The fixing arc blocks are two symmetrically distributed from left to right, and the fixing arc blocks are fixedly installed between the two connecting rings. The channel is set between the two fixing arc blocks, and the connecting arc plate is fixedly installed between the two fixing arc blocks.

[0008] Furthermore, elastic locking blocks are symmetrically fixedly installed on the outer wall of the sliding arc block.

[0009] Furthermore, the storage adjustment device includes a rotating ring plate and a spacer plate. There are two rotating ring plates symmetrically distributed front and back. The two rotating ring plates are respectively attached to the side sealing devices on both sides. A spacer plate is fixedly installed in a ring between the two rotating ring plates, and the spacer plate is slidably connected to the fixed arc block.

[0010] Furthermore, the spacer divides the space between the two rotating ring plates into multiple temporary storage spaces, and the temporary storage spaces store magnetorheological fluid.

[0011] Furthermore, the inner ring of the rotating ring plate is provided with a limiting track corresponding to the elastic locking block, and the limiting track is provided with multiple ring-shaped slots.

[0012] The beneficial effects of using this invention are:

[0013] This invention controls the sealing unit to seal or open the reserved pipe channel by setting up a side sealing device; and controls the side sealing device to seal or open the reserved pipe channel by setting up a storage and adjustment device, which stores magnetorheological fluid. By rotating the storage and adjustment device, the magnetorheological fluid is delivered to the central sealing device, and solidified under the action of magnetic force in the central sealing device to seal the reserved pipe channel, providing secondary sealing force and preventing micro-leakage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the side sealing device of the present invention.

[0016] Figure 3 This is a schematic diagram of the inner structure of the side sealing device of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the central sealing device of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the fixed component and the sliding arc block of the present invention.

[0019] Figure 6 This is a schematic diagram of the storage and adjustment device of the present invention.

[0020] The reference numerals in the attached drawings include: 1. Reserved pipe, 2. Connecting ring plate, 3. Side sealing device, 31. Central ring, 32. Sealing unit, 33. Connecting rod, 34. Rotating ring, 35. Annular pressure plate, 4. Central sealing device, 41. Connecting ring, 42. Fixing component, 421. Fixing arc block, 422. Connecting arc plate, 43. Sliding arc block, 431. Elastic locking block, 5. Storage and adjustment device, 51. Rotating ring plate, 511. Limiting track, 52. Spare plate, 53. Temporary storage space. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 6 A gas control system for sealing a reserved pipe includes a reserved pipe 1, a connecting ring plate 2, a side sealing device 3, a central sealing device 4, and a storage and adjustment device 5. The central sealing device 4 is cylindrical in shape. The storage and adjustment device 5 is rotatably mounted on the outer wall of the central sealing device 4. Two side sealing devices 3 are symmetrically fixedly installed on the two end faces of the storage and adjustment device 5. Two connecting ring plates 2 are respectively fixedly installed on the outer end faces of the two side sealing devices 3, and the outer ring of the connecting ring plate 2 is fixedly connected to the inner wall of the reserved pipe 1.

[0023] Specifically, the side sealing device 3 includes a central ring 31, sealing units 32, connecting rods 33, and a rotating ring 34. Two central rings 31 are symmetrically distributed. One central ring 31 is fixedly connected to the inner ring of the connecting ring plate 2, and the other central ring 31 is fixedly connected to the end face of the central sealing device 4. There is a gap between the two central rings 31. A shaft is assembled between the two central rings 31. Sealing units 32 are evenly assembled in a ring between the two central rings 31. One end of the sealing unit 32 is rotatably assembled on the shaft. The other end of the sealing unit 32 is rotatably assembled with one end of the connecting rod 33. The other end of the connecting rod 33 is rotatably assembled between the rotating ring 34 and the connecting ring plate 2. An annular pressure plate 35 is fixedly installed on the end face of the rotating ring 34 through a hydraulic shaft structure. The annular pressure plate 35 is movable between the rotating ring 34 and the storage adjustment device 5, and the annular pressure plate 35 is in contact with the storage adjustment device 5.

[0024] The hydraulic shaft structure consists of a fixed outer shaft and a telescopic inner shaft. The fixed outer shaft is fixed to the side of the rotating ring 34, and the telescopic inner shaft is fixed to the side of the annular pressure plate 35. The telescopic inner shaft is slidably connected to the fixed outer shaft by hydraulic oil. A similar structure can also use an electric telescopic shaft to connect the rotating ring 34 and the annular pressure plate 35.

[0025] The telescopic inner shaft of the hydraulic shaft structure moves outward within the fixed outer shaft, pushing the annular pressure plate 35 to fit against the storage adjustment device 5. Under the thrust of the hydraulic shaft structure, the annular pressure plate 35 and the storage adjustment device 5 are tightly fitted together. Due to the high friction between them, the rotation of the storage adjustment device 5 can drive the annular pressure plate 35 to rotate, which in turn drives the rotating ring 34 to rotate synchronously. To move the annular pressure plate 35 away from the storage adjustment device 5, the telescopic inner shaft of the hydraulic shaft structure simply moves into the fixed outer shaft, pulling the annular pressure plate 35 back to its original position against the rotating ring 34.

[0026] Driven by the storage and adjustment device 5, the annular pressure plate 35 drives the rotating ring 34 to rotate, which in turn drives the blocking unit 32 to rotate between the central rings 31 under the action of the connecting rod 33, blocking or opening the channel between the central rings 31. When the rotating ring 34 rotates clockwise, the connecting rod 33 drives the blocking unit 32 to rotate towards the center on the central rings 31, blocking the channel between the central rings 31. Conversely, when the rotating ring 34 rotates counterclockwise, the connecting rod 33 drives the blocking unit 32 to rotate outward on the central rings 31, opening the channel between the central rings 31.

[0027] The storage adjustment device 5 is connected to the rotating ring 34 by friction. The annular pressure plate 35 is controlled to fit against the storage adjustment device 5 by a hydraulic shaft structure. Under the action of friction between the annular pressure plate 35 and the storage adjustment device 5, the storage adjustment device 5 drives the rotating ring 34 to rotate. When the blocking unit 32 completes the blocking or opening of the channel, the rotating ring 34 is restricted and cannot rotate. At this time, the annular pressure plate 35 is driven away from the storage adjustment device 5 by the hydraulic shaft structure to reduce friction, so that the storage adjustment device 5 can rotate independently.

[0028] In a preferred embodiment, the inner ring of the storage adjustment device 5 is rotatably disposed outside the middle sealing device 4, the outer ring is rotatably connected to the reserved pipe 1, and a driving mechanism is provided between the reserved pipe 1 and the storage adjustment device 5. The driving mechanism is fixed on the top inner wall of the reserved pipe 1, and the storage adjustment device 5 is controlled to rotate outside the middle sealing device 4 by the outer ring of the rotating ring plate 51 in the storage adjustment device 5.

[0029] Specifically, the central blocking device 4 includes a connecting ring 41, a fixing component 42, and a sliding arc block 43. The fixing component 42 is fixedly installed between the two connecting rings 41, and two channels are left between the connecting rings 41. The two sliding arc blocks 43 are slidably assembled on the fixing component 42, and the sliding arc blocks 43 are used to block the channels.

[0030] Under the action of the storage adjustment device 5, the sliding arc block 43 is driven to slide on the fixed component 42, opening the channel between the middle sealing device 4 and the storage adjustment device 5. When the storage adjustment device 5 rotates clockwise outside the middle sealing device 4, it drives the upper sliding arc block 43 to slide on the fixed component 42, opening the upper channel and driving the lower sliding arc block 43 to slide on the fixed component 42, closing the lower channel. When the storage adjustment device 5 rotates counterclockwise outside the middle sealing device 4, it drives the upper sliding arc block 43 to slide on the fixed component 42, closing the upper channel and driving the lower sliding arc block 43 to slide on the fixed component 42, opening the lower channel.

[0031] Specifically, the fixing component 42 includes a fixing arc block 421 and a connecting arc plate 422. The fixing arc blocks 421 are two symmetrically distributed on the left and right, and the fixing arc blocks 421 are fixedly installed between the two connecting rings 41. The channel is set between the two fixing arc blocks 421, and the connecting arc plate 422 is fixedly installed between the two fixing arc blocks 421.

[0032] The upper and lower sliding arc blocks 43 are slidably connected to the upper and lower ends of the right fixed arc block 421, respectively. Under the restriction of the connecting arc plate 422, the sliding arc blocks 43 can close or open the channel between the two fixed arc blocks 421, and the fixed arc block 421 is equipped with an electromagnetic coil.

[0033] Specifically, elastic locking blocks 431 are symmetrically fixedly installed on the outer wall of the sliding arc block 43.

[0034] The storage adjustment device 5 drives the sliding arc block 43 to slide on the fixed arc block 421 via the elastic locking block 431.

[0035] Specifically, the storage adjustment device 5 includes a rotating ring plate 51 and a spacer plate 52. There are two rotating ring plates 51 symmetrically distributed front and back. The two rotating ring plates 51 are respectively attached to the side sealing devices 3 on both sides. The spacer plate 52 is fixedly installed in a ring between the two rotating ring plates 51, and the spacer plate 52 is slidably connected to the fixed arc block 421.

[0036] By rotating the rotating ring plate 51, the side sealing device 3 is adjusted under the action of the annular pressure plate 35. By rotating the rotating ring 34, the sealing unit 32 is rotated between the central rings 31 under the action of the connecting rod 33, which blocks or opens the channel between the central rings 31. The spacer plate 52 rotates on the outer wall of the fixed component 42.

[0037] Specifically, the spacer 52 divides the space between the two rotating ring plates 51 into multiple temporary storage spaces 53, and the temporary storage spaces 53 store magnetorheological fluid.

[0038] When the storage regulating device 5 rotates forward, the annular pressure plate 35 simultaneously adheres to the storage regulating device 5, thereby driving the rotating ring 34 to rotate forward. This, via the connecting rod 33, drives the sealing unit 32 to rotate towards the center on the central ring 31, sealing the channels between the central rings 31. Once the channels between the central rings 31 are completely sealed, the annular pressure plate 35 moves away from the storage regulating device 5, allowing the storage regulating device 5 to rotate independently, continuously supplying the magnetorheological fluid within the temporary storage space 53. Simultaneously with sealing the channels, the storage regulating device 5 drives the upper sliding arc block 43 to... The fixed component 42 slides, opening the upper channel and causing the lower sliding arc block 43 to slide on the fixed component 42, closing the lower channel. Then, the magnetorheological fluid inside the temporary storage space 53 enters the space formed by the fixed component 42 and the two side sealing units 32 through the upper channel. The magnetorheological fluid in the multiple temporary storage spaces 53 is sufficient to fill the space formed by the two side sealing units 32. After the magnetorheological fluid fills the space, the magnetorheological fluid hardens instantly under the magnetic field of the electromagnetic coil in the fixed arc block 421, providing secondary sealing force and effectively preventing micro-leakage.

[0039] Conversely, when the storage regulating device 5 reverses, the annular pressure plate 35 is not tightly attached to the storage regulating device 5, keeping the rotating ring 34 stationary. Then, the storage regulating device 5 drives the upper sliding arc block 43 to slide on the fixed component 42, closing the upper channel. It also drives the lower sliding arc block 43 to slide on the fixed component 42, opening the lower channel. At the same time, the electromagnetic coil in the fixed arc block 421 stops working, the magnetic field disappears, and the magnetorheological fluid regains its fluidity, returning to the temporary storage space 53 along the lower channel. After all the magnetorheological fluid is recovered, the annular pressure plate 35 attaches to the storage regulating device 5, causing the rotating ring 34 to reverse. Through the connecting rod 33, the sealing unit 32 rotates outward on the central ring 31, opening the channel between the central rings 31 and allowing the gas in the reserved pipe 1 to flow normally.

[0040] Magnetorheological fluid is a suspension composed of magnetic particles, base fluid and stabilizer. When no magnetic field is applied, the magnetorheological fluid is a flowable liquid, but under the action of a strong magnetic field, it exhibits solid-like properties, and when the magnetic field is removed, it restores its flow characteristics.

[0041] Specifically, the inner ring of the rotating ring plate 51 is provided with a limiting track 511 corresponding to the elastic locking block 431, and the limiting track 511 is provided with multiple ring-shaped slots.

[0042] When the rotating ring plate 51 and the spacer plate 52 rotate outside the central sealing device 4, the elastic locking block 431 on the sliding arc block 43 slides within the limiting track 511. When the sliding arc block 43 is not restricted by the fixed arc block 421 during the sliding process, the elastic locking block 431, under the restriction of the slot, causes the rotating ring plate 51 to drive the sliding arc block 43 to move. When the sliding arc block 43 is restricted by the fixed arc block 421 during the sliding process, the elastic locking block 431 retracts and disengages from the slot, thus completing the adjustment of the position of the sliding arc block 43. Afterward, the rotating ring plate 51 rotates on the central sealing device 4 to transport or collect the magnetorheological fluid.

[0043] In practice, when it is necessary to seal the reserved pipe 1, the storage adjustment device 5 is controlled to rotate forward. At the same time, the annular pressure plate 35 adheres to the storage adjustment device 5, thereby driving the rotating ring 34 to rotate forward. Through the connecting rod 33, the sealing unit 32 rotates towards the center on the central ring 31, sealing the channel between the central rings 31. While sealing the channel, the storage adjustment device 5, through the cooperation of the slot and the elastic locking block 431, drives the upper sliding arc block 43 to slide on the fixed component 42, opening the upper channel, and drives the lower sliding arc block 43 to slide on the fixed component 42, closing the lower channel. Then, the magnetorheological fluid inside the temporary storage space 53 enters the space composed of the fixed component 42 and the two side sealing units 32 through the upper channel. Before the channel between the central rings 31 is completely closed, the delivered magnetorheological fluid is insufficient to overflow. After the channel between the central rings 31 is completely closed, the annular pressure plate 35 moves away from the storage adjustment device 5, causing the storage adjustment device 5 to rotate independently and continuously deliver the magnetorheological fluid in the temporary storage space 53. After the magnetorheological fluid fills the space, the magnetorheological fluid hardens instantly under the magnetic field of the electromagnetic coil in the fixed arc block 421, providing secondary sealing force and effectively preventing micro-leakage.

[0044] Conversely, when the reserved tube 1 needs to be opened, the storage adjustment device 5 is reversed. At this time, the annular pressure plate 35 is not tightly attached to the storage adjustment device 5, keeping the rotating ring 34 stationary. Then, the storage adjustment device 5, through the cooperation of the slot and the elastic block 431, drives the upper sliding arc block 43 to slide on the fixed component 42, closing the upper channel and driving the lower sliding arc block 43 to slide on the fixed component 42, opening the lower channel. At the same time, the electromagnetic coil in the fixed arc block 421 stops working, the magnetic field disappears, the magnetorheological fluid regains its fluidity, and returns to the temporary storage space 53 along the lower channel. After all the magnetorheological fluid is recovered, the annular pressure plate 35 is attached to the storage adjustment device 5, driving the rotating ring 34 to reverse. Through the connecting rod 33, the sealing unit 32 is driven to rotate outward on the central ring 31, opening the channel between the central rings 31, allowing the gas in the reserved tube 1 to flow normally, thereby achieving the purpose of quickly controlling and sealing the reserved tube 1.

[0045] The above content is only a preferred embodiment of the present invention. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the concept of the present invention. As long as these changes do not depart from the concept of the present invention, they all fall within the protection scope of the present invention.

Claims

1. A gas control reservation pipe plugging control system, characterized by: The utility model relates to a kind of storage devices, including reservation pipe (1), connecting ring plate (2), side blocking device (3), middle blocking device (4) and storage adjusting device (5), the middle blocking device (4) is cylindrical as a whole, the storage adjusting device (5) is rotatably assembled in the outer wall of middle blocking device (4), two the side blocking device (3) is symmetrically fixedly installed in the two end surfaces of storage adjusting device (5), two the connecting ring plate (2) is fixedly installed in the outer end surface of two side blocking device (3), and the outer ring of connecting ring plate (2) is fixedly connected with the inner wall of reservation pipe (1); The side blocking device (3) includes a center ring (31), a blocking unit (32), a connecting rod (33), and a rotating ring (34). Two center rings (31) are symmetrically arranged. One center ring (31) is fixedly connected with the inner ring of the connecting ring plate (2), and the other center ring (31) is fixedly connected with the end surface of the middle blocking device (4). There is a gap between the two center rings (31). An axle body is assembled between the two center rings (31). The blocking unit (32) is uniformly arranged in a ring shape between the two center rings (31). One end of the blocking unit (32) is rotatably assembled on the axle body. The other end of the blocking unit (32) is rotatably connected with one end of the connecting rod (33). The other end of the connecting rod (33) is rotatably connected between the rotating ring (34) and the connecting ring plate (2). The end surface of the rotating ring (34) is fixedly installed with a ring-shaped pressure plate (35) through a hydraulic shaft structure. The ring-shaped pressure plate (35) is movable between the rotating ring (34) and the storage adjusting device (5). The ring-shaped pressure plate (35) is in contact with the storage adjusting device (5). The storage adjusting device (5) includes a rotating ring plate (51) and a spacer plate (52). The rotating ring plate (51) is symmetrically arranged in front and back. Two rotating ring plates (51) are in contact with the side blocking device (3) on both sides. The spacer plate (52) is fixedly installed in a ring shape between the two rotating ring plates (51). The spacer plate (52) is slidingly connected with the fixed arc block (421). The spacer plate (52) divides the space between the two rotating ring plates (51) into multiple temporary storage spaces (53). The temporary storage spaces (53) contain magnetorheological fluid.

2. A gas control reserve pipe plugging control system according to claim 1, characterized in that: The middle blocking device (4) includes a connecting ring (41), a fixed assembly (42), and a sliding arc block (43). The fixed assembly (42) is fixedly installed between the two connecting rings (41). There are two channels between the connecting rings (41). Two sliding arc blocks (43) are slidingly assembled on the fixed assembly (42). The sliding arc blocks (43) are used to block the channels.

3. A gas control reserve pipe plugging control system as claimed in claim 2, wherein: The fixed assembly (42) comprises fixed arc blocks (421) and a connecting arc plate (422), the fixed arc blocks (421) are symmetrically distributed left and right, the fixed arc blocks (421) are fixedly installed between the two connecting rings (41), and a channel is arranged between the two fixed arc blocks (421), and the connecting arc plate (422) is fixedly installed between the two fixed arc blocks (421).

4. A gas control reserve pipe plugging control system as claimed in claim 2, wherein: The outer wall of the sliding arc block (43) is symmetrically fixedly provided with elastic clamping blocks (431) in front and back.

5. A gas control reserve pipe plugging control system as claimed in claim 1, wherein: The inner ring of the rotating ring plate (51) is provided with a limiting track (511) corresponding to the elastic clamping blocks (431), and a plurality of annular clamping grooves are arranged in the limiting track (511).

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