A flexible energy dissipation protection device for karst cave collapse damage to pipelines

Abstract

This invention discloses a tough energy dissipation protection device for pipeline damage caused by karst cave collapse. It relates to the field of pipeline protection technology and includes a first pipeline and a second pipeline connected in series by a connecting component; two inner energy dissipation components are configured and sealed at the connection position between the first pipeline and the second pipeline and the connecting component; and an outer energy dissipation component is sleeved on the outer wall of the two inner energy dissipation components.

Description

Technical Field

[0001] This invention relates to the field of pipeline protection technology, specifically a tough energy dissipation protection device for pipeline damage caused by karst cave collapse. Background Technology

[0002] For underground pipelines or those located near karst caves, a sudden collapse of the cave can cause significant deformation and damage to the surrounding pipelines, leading to breakage at pipeline connections and affecting pipeline use. Existing pipeline protection measures involve installing expansion joints at the connections. However, these expansion joints are relatively soft, and when fluids with high flow rates are transported, they can impact the expansion joints, causing them to sway and potentially break.

[0003] To address the above problems, this invention provides a tough energy dissipation protection device for pipeline damage caused by karst cave collapse, thereby solving the aforementioned issues. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tough energy dissipation protection device for pipeline damage caused by karst cave collapse, comprising:

[0005] The first and second pipes are connected in series via a connecting component;

[0006] Internal energy dissipation components, configured in pairs, are sealed and connected at the connection points between the first and second pipes and the connecting assembly; and

[0007] An external energy dissipation component is fitted onto the outer wall of the two internal energy dissipation components.

[0008] Further, preferably, the internal energy dissipation component includes:

[0009] A connecting ring, connected to the end face of the connecting assembly; and

[0010] The energy dissipation column is configured in multiple ways, with one end circumferentially hinged to the outer wall of the connecting ring and the other end hinged to the external energy dissipation assembly;

[0011] Furthermore, the energy dissipation column includes at least a telescopic column, a radial energy dissipation spring, and an axial energy dissipation spring. The radial energy dissipation spring is sleeved on the outer wall of the telescopic column to allow the telescopic column to extend and return to its original position. There are at least four axial energy dissipation springs symmetrically arranged at the hinge positions at both ends of the telescopic column to allow the telescopic column to slide slightly along the axial direction of the first pipe.

[0012] Further, preferably, the external energy dissipation component includes:

[0013] An energy dissipation pipe is hinged to the energy dissipation column, and its two ends are respectively sealed to the first pipe and the second pipe.

[0014] Two retaining rings are configured and symmetrically fixed to the outer wall of the energy dissipation tube;

[0015] Energy dissipation arms, configured in multiple units, are circumferentially hinged at one end to the fixed ring, and rotatably equipped with a pulley at the other end; and

[0016] The telescopic arm is hinged at one end to the middle of the energy dissipation arm and at the other end to the end of the energy dissipation tube, and a spring is installed inside the telescopic arm.

[0017] Further, preferably, the connection component includes:

[0018] The capsule is fixed between the two connecting rings;

[0019] At least four pressure valves are arranged circumferentially on the outer wall of the bladder for inflating and deflating the bladder; and

[0020] The venting assembly is fixed to the inner wall of the external energy dissipation assembly and corresponds to the press valve.

[0021] Further, preferably, the venting assembly includes:

[0022] The outer cylinder is fixed to the inner wall of the outer energy dissipation assembly;

[0023] A sliding column is slidably disposed inside the outer cylinder, and a magnetic element is fixed at one end of the column near the outer cylinder;

[0024] The pressing column is fixed at the end of the sliding column away from the outer cylinder; and

[0025] The adjusting component is slidably disposed inside the outer cylinder and in contact with the sliding column.

[0026] Furthermore, preferably, the pressing column is made of rubber.

[0027] Further, preferably, the adjustment component includes:

[0028] The adjusting column is slidably disposed inside the outer cylinder;

[0029] A magnetic disk is fixed to one end of the adjusting column near the sliding column and is magnetically connected to the sliding column;

[0030] A limiting plate is slidably mounted on the adjusting column and has damping between it and the adjusting column, so that the limiting plate slides together with the adjusting column, and a pressing spring is provided between the limiting plate and the adjusting column;

[0031] The adjusting disc is slidably disposed within the adjusting column;

[0032] Two sliding grooves are configured and symmetrically formed on the outer cylinder; and

[0033] The limiting bolt is threaded onto the adjusting disc and corresponds to the sliding groove, and can slide within the sliding groove.

[0034] Compared with the prior art, the present invention provides a tough energy dissipation protection device for pipeline damage caused by karst cave collapse, which has the following beneficial effects:

[0035] In this invention, the connecting component enables the first or second pipe to deflect and move when it settles or breaks, thereby preventing direct breakage at the connection point. During deflection, the venting component releases gas from the bladder, preventing excessive gas inside the bladder from affecting the deflection and further preventing breakage at the connection point. When the pipe is normally transporting fluid, the gas inside the bladder provides it with a certain rigidity, preventing it from swaying due to the fluid. Furthermore, the external and internal energy dissipation components outside the connecting component provide double buffering and energy absorption when the first or second pipe vibrates, preventing direct breakage and improving the stability of the device. Attached Figure Description

[0036] Figure 1 This is an overall schematic diagram of a tough energy dissipation protection device for pipeline damage caused by karst cave collapse;

[0037] Figure 2 This is a schematic cross-sectional view of a tough energy dissipation protection device for pipeline damage caused by karst cave collapse;

[0038] Figure 3 This is a schematic diagram of point A of a tough energy dissipation protection device for pipeline damage caused by karst cave collapse;

[0039] Figure 4 A schematic diagram of a venting component for a tough energy dissipation protection device for pipeline damage caused by karst cave collapse;

[0040] In the diagram: 1. First pipe; 2. Second pipe; 3. External energy dissipation component; 4. Internal energy dissipation component; 5. Connecting component; 31. Energy dissipation pipe; 32. Fixing ring; 33. Energy dissipation arm; 34. Telescopic arm; 41. Connecting ring; 42. Energy dissipation column; 421. Telescopic column; 422. Radial energy dissipation spring; 423. Axial energy dissipation spring; 51. Bag body; 52. Press valve; 53. Venting component; 531. Outer cylinder; 532. Sliding column; 533. Press column; 534. Adjusting column; 535. Magnetic disk; 536. Limiting disk; 537. Adjusting disk; 538. Sliding groove; 539. Limiting bolt. Detailed Implementation

[0041] Reference Figures 1-4This invention provides a technical solution: a tough energy dissipation protection device for pipeline damage caused by karst cave collapse, comprising:

[0042] The first pipe 1 and the second pipe 2 are connected in series via the connecting component 5;

[0043] Internal energy dissipation components 4 are configured in pairs, and are sealed together at the connection points between the first pipe 1 and the second pipe 2 and the connecting component 5; and

[0044] The external energy dissipation component 3 is sleeved on the outer wall of the two internal energy dissipation components 4.

[0045] In other words, before the cave collapses due to vibration, the external energy dissipation component 3 can initially buffer and absorb energy for the device, preventing the movement of the cave soil layer from directly damaging the device. When the cave collapses, the position of the first pipe 1 settles, and the first pipe 1 tends to move downward relative to the second pipe 2. At this time, the first pipe 1 absorbs energy and buffers energy through the internal energy dissipation component 4. When the first pipe 1 continues to move downward, the first pipe 1 deflects relative to the second pipe 2, thereby causing the connecting component 5 to bend, achieving the effect of toughness buffering.

[0046] In this embodiment, the internal energy dissipation component 4 includes:

[0047] Connecting ring 41, connected to the end face of the connecting assembly 5; and

[0048] Energy dissipation columns 42 are configured in multiple ways, with one end circumferentially hinged to the outer wall of the connecting ring 41 and the other end hinged to the external energy dissipation assembly 3.

[0049] Furthermore, the energy dissipation column 42 includes at least a telescopic column 421, a radial energy dissipation spring 422, and an axial energy dissipation spring 423. The radial energy dissipation spring 422 is sleeved on the outer wall of the telescopic column 421 and is used to allow the telescopic column 421 to extend and return to its original position. There are at least four axial energy dissipation springs 423, which are symmetrically arranged at the hinge positions at both ends of the telescopic column 421 and are used to allow the telescopic column 421 to slide slightly along the axial direction of the first pipe 1.

[0050] It should be noted that the hinges at both ends of the energy dissipation column 42 are spherical hinges, which allows it to deflect in multiple directions, making it easy to buffer and absorb energy in multiple directions. Furthermore, before the cavern tends to collapse due to vibration, the radial energy dissipation spring 422 and the axial energy dissipation spring 423 can buffer and absorb the transverse and longitudinal waves generated by the vibration, thus preventing the vibration from directly damaging the device.

[0051] In a preferred embodiment, the external energy dissipation component 3 includes:

[0052] The energy dissipation pipe 31 is hinged to the energy dissipation column 42, and its two ends are respectively sealed to the first pipe 1 and the second pipe 2.

[0053] Two fixing rings 32 are configured and symmetrically fixed to the outer wall of the energy dissipation tube 31;

[0054] Energy dissipation arms 33 are configured in multiple units, one end of which is circumferentially hinged to the fixed ring 32, and the other end is rotatably equipped with a sliding wheel; and

[0055] The telescopic arm 34 is hinged at one end to the middle position of the energy dissipation arm 33 and at the other end to the end of the energy dissipation tube 31, and a spring is installed inside the telescopic arm 34.

[0056] In a preferred embodiment, the connection component 5 includes:

[0057] The capsule 51 is fixed between the two connecting rings 41;

[0058] At least four press valves 52 are circumferentially arranged on the outer wall of the bladder 51 for inflating and deflating the bladder 51; and

[0059] The venting assembly 53 is fixed to the inner wall of the external energy dissipation assembly 3 and corresponds to the press valve 52.

[0060] In a preferred embodiment, the venting assembly 53 includes:

[0061] The outer cylinder 531 is fixed to the inner wall of the outer energy dissipation component 3;

[0062] The sliding column 532 is slidably disposed inside the outer cylinder 531, and a magnetic element is fixed at one end of the column near the outer cylinder 531.

[0063] The pressing column 533 is fixed at the end of the sliding column 532 away from the outer cylinder 531; and

[0064] The adjustment component is slidably disposed inside the outer cylinder 531 and in contact with the sliding column 532.

[0065] In other words, when the first pipe 1 settles, it causes the connecting component 5 to deflect together. When it deflects to a certain angle, the venting component 53 presses the pressing valve 52, thereby venting the air inside the bladder 51 and preventing excessive gas inside the bladder 51 from affecting the deflection.

[0066] In a preferred embodiment, the pressing column 533 is made of rubber.

[0067] It should be noted that when the connecting component 5 is deflected, the pressing column 533 can bend along with the pressing valve 52, thereby facilitating the pressing of the valve port of the pressing valve 52.

[0068] In a preferred embodiment, the adjustment component includes:

[0069] Adjusting column 534 is slidably disposed inside the outer cylinder 531;

[0070] The magnetic disk 535 is fixed to one end of the adjusting column 534 near the sliding column 532 and is magnetically connected to the sliding column 532.

[0071] A limiting plate 536 is slidably disposed on the adjusting column 534 and has damping between it and the adjusting column 534, so that the limiting plate 536 slides together with the adjusting column 534. A pressing spring is provided between the limiting plate 536 and the adjusting column 534. It should be noted that the pressing spring can provide elastic buffering for the pressing column 533. That is to say, the pressing spring can ensure that the pressing column 533 can only open the pressing valve 52 after reaching the set compression amount, thus avoiding the opening of the pressing valve 52 due to vibration.

[0072] Adjustment disc 537 is slidably disposed within adjustment column 534;

[0073] Two sliding grooves 538 are configured and symmetrically formed on the outer cylinder 531; and

[0074] The limiting bolt 539 is threadedly connected to the adjusting plate 537 and corresponds to the sliding groove 538, and can slide within the sliding groove 538.

[0075] It should be noted that the pressing force of the pressing column 533 can be adjusted by adjusting the component, so that it can be set according to the soil conditions of the cave. During adjustment, the limiting plate 536 is limited by the movement of the adjusting plate 537 (fixed by the limiting bolt 539), thereby changing the compression degree of the pressing spring. That is to say, when the soil is soft, the settlement speed is too fast. At this time, adjusting the adjusting plate 537 compresses the pressing spring, so that the pressing column 533 can directly open the pressing valve 52, accelerating the degassing speed of the bladder 51.

[0076] Specifically, when the first pipe 1 or the second pipe 2 experiences settlement failure, the settling pipe is deflected and moved by the connecting component 5, thereby preventing direct breakage at the connection point. During deflection, the venting component 53 can release gas from the bladder 51, preventing excessive gas inside the bladder 51 from affecting the deflection and further preventing breakage at the connection point. When the pipe is normally transporting fluid, the gas inside the bladder 51 can give the bladder 51 a certain rigidity, thereby preventing the fluid from causing it to sway. Furthermore, the external energy dissipation component 3 and the internal energy dissipation component 4 are set outside the connecting component 5, which can provide double buffering and energy absorption when the first pipe 1 or the second pipe 2 vibrates, preventing direct breakage and improving the stability of the device.

[0077] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tough energy dissipation protection device for pipeline damage caused by karst cave collapse, characterized in that, include: The first pipe (1) and the second pipe (2) are connected in series via a connecting component (5); Internal energy dissipation components (4) are configured in pairs, and are sealed to the connection points of the first pipe (1) and the second pipe (2) with the connecting component (5); and An external energy dissipation component (3) is sleeved on the outer wall of the two internal energy dissipation components (4); The internal energy dissipation component (4) includes: A connecting ring (41) is connected to the end face of the connecting assembly (5); The connection component (5) includes: The capsule (51) is fixed between the two connecting rings (41); Press valves (52), at least four in number, are circumferentially arranged on the outer wall of the bladder (51) for inflating and deflating the bladder (51); and The venting assembly (53) is fixed to the inner wall of the external energy dissipation assembly (3) and corresponds to the press valve (52); The venting assembly (53) includes: The outer cylinder (531) is fixed to the inner wall of the outer energy dissipation assembly (3); A sliding column (532) is slidably disposed inside the outer cylinder (531), and a magnetic element is fixed at one end of the column near the outer cylinder (531); The pressing column (533) is fixed at one end of the sliding column (532) away from the outer cylinder (531); and The adjusting component is slidably disposed inside the outer cylinder (531) and in contact with the sliding column (532); The adjustment component includes: The adjusting column (534) is slidably disposed inside the outer cylinder (531); A magnetic disk (535) is fixed to one end of the adjusting column (534) near the sliding column (532) and is magnetically connected to the sliding column (532); A limiting plate (536) is slidably disposed on the adjusting column (534) and there is damping between the limiting plate (534) and the adjusting column (534) for making the limiting plate (536) slide together with the adjusting column (534), and a pressing spring is provided between the limiting plate (536) and the adjusting column (534); The adjusting disc (537) is slidably disposed within the adjusting column (534); Two sliding grooves (538) are configured and symmetrically formed on the outer cylinder (531); and The limiting bolt (539) is threaded onto the adjusting disc (537) and corresponds to the sliding groove (538), and can slide within the sliding groove (538); The pressing column (533) is made of rubber.

2. The tough energy dissipation protection device for pipeline damage caused by karst cave collapse according to claim 1, characterized in that: The internal energy dissipation component (4) also includes: Energy dissipation columns (42) are configured in multiple ways, with one end circumferentially hinged to the outer wall of the connecting ring (41) and the other end hinged to the external energy dissipation assembly (3); The energy dissipation column (42) includes at least a telescopic column (421), a radial energy dissipation spring (422), and an axial energy dissipation spring (423). The radial energy dissipation spring (422) is sleeved on the outer wall of the telescopic column (421) to allow the telescopic column (421) to extend and retract. The axial energy dissipation spring (423) consists of at least four springs symmetrically arranged at the hinge positions at both ends of the telescopic column (421) to allow the telescopic column (421) to slide slightly along the axial direction of the first pipe (1).

3. A ductility and energy dissipation device for protection of pipelines from karst cave collapse damage according to claim 2, characterized in that: The external energy dissipation component (3) includes: The energy dissipation pipe (31) is hinged to the energy dissipation column (42), and its two ends are respectively sealed to the first pipe (1) and the second pipe (2); Two fixing rings (32) are configured and symmetrically fixed to the outer wall of the energy dissipation tube (31); Energy dissipation arms (33) are configured in multiple ways, one end of which is circumferentially hinged to the fixed ring (32), and the other end is rotatably equipped with a pulley; and The telescopic arm (34) is hinged at one end to the middle position of the energy dissipation arm (33) and at the other end to the end of the energy dissipation tube (31), and a spring is installed inside the telescopic arm (34).

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