A protection device for absorbing the transient impact energy of a super-large caliber pipeline impacted by a collapse landslide and a construction method

Abstract

The application discloses a protection device for absorbing the instantaneous impact energy of a super-large caliber pipeline impacted by a collapsed landslide, which comprises a fixing frame arranged and erected on the ground, a pipeline main body horizontally erected in the air on the fixing frame, an outer protection and buffering assembly slidably and detachably mounted on the pipeline main body, an adjusting protection plate arranged on the outer protection and buffering assembly, and a protection layer sleeved with the outer protection and buffering assembly on the pipeline main body.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline protection equipment, and in particular relates to a protection device and a construction method for absorbing instantaneous impact energy of collapse and landslide impacting an ultra-large diameter pipeline. Background Art

[0002] The slope is prone to landslides due to the instability of the mountain, which leads to the collapse of the slope and falling rocks, which is very dangerous. The pipeline installation at the slope will also be affected by the landslide phenomenon, causing scratches on the pipeline surface. The pipeline body is damaged by the impact of falling rocks, which seriously affects the service life of the pipeline. Although the existing technology can adopt corresponding protective nets to protect the slope from falling rocks, in actual use, falling rocks will still cause a large impact on the pipeline under the influence of rolling. Especially under the influence of landslides for a long time, the falling rocks will accumulate seriously at the pipeline, which can easily cause radial impact depression of its main body.

[0003] Therefore, those skilled in the art provide a protective device and a construction method for absorbing the instantaneous impact energy of collapse and landslides on ultra-large diameter pipelines, in order to solve the problems raised in the above background technology. Summary of the Invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective device for absorbing the instantaneous impact energy of collapse and landslide on ultra-large diameter pipelines, comprising: a fixed frame arranged and erected on the ground, a pipeline body horizontally suspended on the fixed frame, an outer protective buffer component slidably and detachably installed on the pipeline body, an adjustable protective plate is provided on the outer protective buffer component, and a protective layer is also sleeved on the pipeline body at the outer protective buffer component.

[0005] Further, as a preference, the adjustment protective plate includes: a mounting ring frame, which is sleeved and fixed on the outer protective buffer assembly, a guide seat is vertically fixed on the mounting ring frame, an inner sleeve is symmetrically arranged on the guide seat, an elastic support is slidably installed on one side of the guide seat, and guide rods corresponding to the inner sleeve are provided on both sides of the elastic support, one end of the guide rod slides into the inner sleeve, and a support spring is connected between the elastic support and the guide seat; an outer plate frame is hinged on the elastic support, and a telescopic guide rod is rotatably connected to the elastic support, and one end of the telescopic guide rod is connected to the outer plate frame.

[0006] Furthermore, as a preference, the outer panel frame is configured as a three-section foldable structure, and an external telescopic part is also connected to the outer panel frame, and a plurality of mounting recesses are provided on the outer panel located in the middle, and a guide plate is provided in each mounting recess for rotation through a bearing, the cross-section of the guide plate is an obtuse triangle structure, and a torsion spring is also sleeved on the guide plate.

[0007] Further, as a preference, the outer protective buffer assembly includes: a tightening ring shaft, two of which are arranged on the left and right, each of the tightening ring shafts is sleeved and arranged outside the pipe body, an outer connecting ring sleeve is cocentrically arranged outside the tightening ring shaft, a file tooth is provided on the circumferential inner wall of the outer connecting ring sleeve, and a plurality of top positioning members are circumferentially hinged on the tightening ring shaft, each of the top positioning members is obliquely connected to the tightening ring shaft through an expansion spring, and one end of the top positioning member is abutted against the file tooth, an adapter sleeve is further provided outside the outer connecting ring sleeve, the adjustment protective plate is fixed on the adapter sleeve, and a buffer torsion assembly is further provided between the adapter sleeve and the outer connecting ring sleeve.

[0008] Further, as a preference, the buffer torsion assembly includes: an inner shaft cylinder, fixed on the outer ring sleeve, the cross-section of the inner shaft cylinder is set to an arc structure, and a shaft plug rod is provided in the inner shaft cylinder, one end of the shaft plug rod is fixed to the adapter sleeve, a buffer bin is provided in the inner shaft cylinder for limited sliding, a ring plug is fixed on the outer surface of the buffer bin, and is sealed and slidably set in the inner shaft cylinder by the ring plug, one end of the shaft plug rod is slidably fitted in the buffer bin, and a plurality of energy dissipation springs are connected to the buffer bin, and an air flow hole is provided below the buffer bin so that the buffer bin is communicated with the inner shaft cylinder.

[0009] Furthermore, preferably, a buffer spring is provided in the inner shaft cylinder, and a pressure valve is provided on one side of the inner shaft cylinder.

[0010] Furthermore, preferably, a guide cavity is provided in the regulating protective plate, the guide cavity is communicated with the buffer bin through an internal pipe, and a piston is slidably provided in the guide cavity.

[0011] Furthermore, preferably, the protective layer includes: an airbag layer, which is circumferentially distributed outside the pipeline body, the airbag layer is connected to the pressure valve through a hose, and a rubber protective sleeve is connected to the airbag layer.

[0012] A construction method for a protective device for absorbing instantaneous impact energy of collapse and landslide impacting an ultra-large diameter pipeline comprises the following steps:

[0013] S1. Installation of protective layer: Based on the terrain, the main body of the buried pipeline is removed and a protective layer is installed. The airbag layer in the protective layer is at 80% inflation saturation. The main body of the pipeline suspended outside is also installed with a protective layer and an external protective buffer component.

[0014] S2. Adaptive adjustment: Based on the estimated impact force of landslides, the external protection and buffer components are adjusted to provide impact protection for the main pipeline area with a higher probability of landslide collapse.

[0015] S3. External adjustment: Initially adjust the angle of the adjustable shield plate using the telescopic guide rod. The shield plate's tilt angle can be adjusted by rotating the adapter sleeve counterclockwise. During impact protection, the outer plate frame controls the adapter sleeve's clockwise rotation, converting the impact force into a torsional action on the outer adapter sleeve to prevent radial impact fractures on the pipe body.

[0016] S4. The interior is adjusted and the airbag layer in the protective layer is initially inflated to 20%.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention adopts an inclined overhead protection method of the outer plate frame to provide lateral protection against falling rocks caused by landslides. At the same time, the guide plate provided can help disperse the falling rocks to the left and right, reducing the accumulation of falling rocks;

[0019] 2. The external protective buffer assembly provided in the present invention can convert the radial impact caused by falling rocks into circumferential torsion, further reducing the probability of pipe bending and fracture under continuous impact. At the same time, it can effectively dissipate and absorb the impact potential energy, thereby providing higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the adjustable protective plate in the present invention;

[0022] Figure 3 Schematic diagram of the structure of the outer plate frame in the present invention;

[0023] Figure 4 This is a schematic structural diagram of the internal and external protective buffer components of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the torsion buffer assembly in the present invention;

[0025] Figure 6 Schematic diagram of the structure of the protective layer in the present invention;

[0026] In the figure: 1. Pipe body; 11. Fixing frame; 2. External protective buffer assembly; 21. Tightening ring shaft; 22. External ring sleeve; 23. Positioning member; 24. File teeth; 25. Adapter sleeve; 3. Adjusting protective plate; 31. Mounting ring frame; 32. Guide seat; 33. Elastic support member; 34. Support spring; 35. Telescopic guide rod; 4. Protective layer; 41. Airbag layer; 42. Rubber protective sleeve; 5. External plate frame; 51. External telescopic member; 52. Bearing; 53. Guide plate; 6. Buffer torsion assembly; 61. Inner shaft cylinder; 62. Shaft plug rod; 63. Buffer bin; 64. Ring plug; 65. Energy dissipation spring; 66. Buffer spring; 67. Pressure valve; 68. Guide chamber; 69. Piston member. DETAILED DESCRIPTION

[0027] See also Figure 1 In an embodiment of the present invention, a protective device for absorbing instantaneous impact energy of collapse and landslide impacting an ultra-large diameter pipeline includes: a fixing frame 11, which is arranged and erected on the ground, and a pipeline body 1 is horizontally suspended on the fixing frame 11, and an outer protective buffer component 2 is slidably and detachably installed on the pipeline body 1, and an adjustable protective plate 3 is provided on the outer protective buffer component 2, and a protective layer 4 is also sleeved on the pipeline body at the outer protective buffer component. For the pipeline body embedded in the ground, the protective layer can be used to sleeve and protect it in a landslide area. The protective layer has high flexibility and strong impact bearing capacity. For the pipeline body suspended on the ground, the impact of the landslide and falling rocks is mainly blocked and dissipated by the outer protective buffer component in combination with the adjustable protective plate, thereby avoiding damage to the pipeline body caused by the impact.

[0028] In this embodiment, the adjustment guard plate 3 includes: a mounting ring frame 31, which is sleeved and fixed on the outer protection buffer assembly 2, a guide seat 32 is vertically fixed on the mounting ring frame 31, an inner sleeve is symmetrically provided on the guide seat 32, an elastic support member 33 is slidably installed on one side of the guide seat 32, and guide rods corresponding to the inner sleeve are provided on both sides of the elastic support member 33, one end of the guide rod slides into the inner sleeve, and a support spring 34 is connected between the elastic support member 33 and the guide seat 32; an outer plate frame 5 is hinged on the elastic support member 33, that is, in the impact of falling rocks in the landslide area, the outer plate frame can be buffered by the elastic force of the support spring, and a telescopic guide rod 35 is rotatably connected to the elastic support member 33, one end of the telescopic guide rod 35 is connected to the outer plate frame 5, and the outer plate frame overhead angle can be adjusted by the corresponding extension and contraction of the telescopic guide rod.

[0029] As a preferred embodiment, the outer panel frame 5 is configured as a three-section foldable structure, and an external telescopic member 51 is also connected to the outer panel frame 5, so as to form upper protection, lateral protection, etc., and a plurality of mounting recesses are provided on the outer panel 5 located in the middle, and a guide plate 53 is rotatably provided in each mounting recess through a bearing 52. The cross-section of the guide plate 53 is an obtuse triangle structure, and a torsion spring is also sleeved on the guide plate 53. In particular, when falling rocks impact and slide on the outer panel, the guide plate can be deflected autonomously by the impact, thereby adjusting the sliding trajectory of the falling rocks and avoiding concentrated accumulation of falling rocks.

[0030] In this embodiment, the outer protective buffer assembly 2 includes: a tightening ring shaft 21, which is two arranged on the left and right, each of the tightening ring shafts 21 is sleeved and arranged outside the pipe body 1, and an outer ring sleeve 22 is provided on the outer concentric circle of the tightening ring shaft 21. The inner wall of the circumference of the outer ring sleeve 22 is provided with a file tooth 24, and a plurality of top positions 23 are hinged on the tightening ring shaft 21 in the circumferential direction. Each of the top positions 23 is obliquely connected to the tightening ring shaft 21 through an expansion spring, and one end of the top position 23 is against the file tooth 24. , so that the external ring sleeve can only achieve one-way counterclockwise rotation adjustment, an adapter sleeve 25 is further provided outside the external ring sleeve 22, the adjustment protective plate 3 is fixed on the adapter sleeve 25, and a buffer torsion component 6 is further provided between the adapter sleeve 25 and the external ring sleeve 22, wherein the staff can rotate the adapter sleeve 25 counterclockwise, and the external ring sleeve can rotate synchronously with the adapter sleeve through the connection action of the buffer torsion component. When the adjustment is completed on the overhead angle of the adjustment protective plate on the adapter sleeve, the top position piece is in contact with the file teeth.

[0031] In this embodiment, the buffer torsion assembly 6 includes: an inner shaft cylinder 61, fixed on the outer ring sleeve 22, the cross section of the inner shaft cylinder 61 is set to an arc structure, and a shaft plug rod 62 is provided in the inner shaft cylinder 61, one end of the shaft plug rod 62 is fixed to the adapter sleeve 25, and a buffer bin 63 is provided in the inner shaft cylinder 61 for limited sliding. A ring plug 64 is fixed on the outer surface of the buffer bin 63, and the ring plug 64 is sealed and slidably provided in the inner shaft cylinder 61, and one end of the shaft plug rod 62 is fixed to the adapter sleeve 25. The end slides in the buffer bin 63, and a plurality of energy-dissipating springs 65 are connected to the buffer bin 63. An air flow hole is provided at the bottom of the buffer bin 63, so that the buffer bin 63 is communicated with the inner shaft cylinder 61. Especially when the impact of falling rocks occurs, the outer plate frame is driven by the impact to rotate the adapter sleeve clockwise, and at this time, the vibration can be absorbed preferentially by the energy-dissipating springs in the buffer bin. When the shaft plug rod is relatively displaced to the limit position of the buffer bin, the buffer bin can be displaced along the inner shaft cylinder and form secondary energy dissipation absorption.

[0032] In this embodiment, a buffer spring 66 is provided in the inner shaft cylinder 61, and a pressure valve 67 is provided on one side of the inner shaft cylinder 61. In particular, when the buffer bin is displaced and sliding, it can discharge the gas in the inner shaft cylinder through the pressure valve. When the pressure valve is closed, it can provide rigid support and blocking. In particular, the initial threshold value of the pressure valve can be controlled, and the buffer bin preferentially provides flexible buffering to the shaft plug rod, while the inner shaft cylinder provides rigid support. When the pressure in the inner shaft cylinder is greater than the pressure valve, the pressure valve opens and subsequent energy dissipation is formed.

[0033] As a preferred embodiment, a guide chamber 68 is provided in the adjusting protective plate 2, and the guide chamber 68 is connected with the buffer bin 63 through an internal pipe, and a piston member 69 is slidingly provided in the guide chamber 68. In particular, one end of the piston rod is fixed to the elastic support member. When the elastic support member is displaced by the impact of falling rocks, the piston rod can push the gas in the guide chamber into the buffer bin first, so as to improve the energy dissipation and buffering effect in the buffer bin.

[0034] In this embodiment, the protective layer 4 includes: an airbag layer 41, which is circumferentially distributed outside the pipe body 1. The airbag layer 41 is connected to the pressure valve 67 through a hose. The airbag layer 41 is connected to a rubber protective sleeve 42. In particular, the airbag layer on the overhead pipe body can be set to have an air content of 20%. At this time, each time a landslide and rockfall occurs, the pressure valve can subsequently supply air to the airbag layer, thereby avoiding the airbag layer from being exposed to the sun and exploding or leaking in a long-term saturated state, resulting in insufficient air pressure.

[0035] A construction method for a protective device for absorbing instantaneous impact energy of collapse and landslide impacting an ultra-large diameter pipeline comprises the following steps:

[0036] S1. Installation of protective layer: According to the terrain, the pipe body 1 buried underground is removed and the protective layer 4 is installed. The airbag layer 41 in the protective layer 4 is at 80% inflation saturation. The pipe body 1 suspended outside is also installed with the protective layer 41 and the external protective buffer assembly 2 is installed.

[0037] S2. Adaptive adjustment, according to the environmental landslide estimated its collapse impact force, then adjust the outer protection buffer assembly 3 erection orientation, so that the landslide collapse probability higher pipeline main body 1 part of the impact protection;

[0038] S3. External adjustment: Initially adjust the overhead angle of the adjustable shield 3 using the telescopic guide rod 35. The tilt angle of the adjustable shield can be adjusted by counterclockwise rotation of the adapter sleeve 25. During impact protection, the outer frame 5 controls the adapter sleeve 25 to rotate clockwise, converting the impact force into a torsional effect on the external adapter sleeve 22, thereby preventing radial impact fracture of the pipe body 1.

[0039] S4. The interior is adjusted by initially supplying air to the airbag layer 51 in the protective layer 5 so that it is in a 20% inflation state.

[0040] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A protective device for absorbing the instantaneous impact energy of collapse and landslide on large-diameter pipelines, characterized by: The invention comprises a fixing frame (11), the fixing frame (11) is arranged and erected on the ground, a pipeline body (1) is horizontally suspended on the fixing frame (11), an outer protection buffer component (2) is slidably and detachably mounted on the pipeline body (1), an adjustment protection plate (3) is provided on the outer protection buffer component (2), and a protective layer (4) is sleeved on the pipeline body at the outer protection buffer component; The outer protection buffer assembly (2) includes a tightening ring shaft (21), which is provided with two tightening ring shafts (21) on the left and right. Each of the tightening ring shafts (21) is sleeved and arranged outside the pipeline body (1). An outer ring sleeve (22) is provided cocentrically outside the tightening ring shaft (21). File teeth (24) are provided on the inner circumferential wall of the outer ring sleeve (22). A plurality of top positioning members (23) are hinged circumferentially on the tightening ring shaft (21). Each of the top positioning members (23) is connected to the tightening ring shaft (21) in an inclined manner through an expansion spring, and one end of the top positioning member (23) abuts against the file teeth (24). An adapter sleeve (25) is also provided outside the outer ring sleeve (22). The adjustment protection plate (3) is fixed on the adapter sleeve (25). A buffer torsion assembly (6) is also provided between the adapter sleeve (25) and the outer ring sleeve (22). The buffer torsion assembly (6) includes an inner shaft cylinder (61), which is fixed on the outer ring sleeve (22). The cross section of the inner shaft cylinder (61) is set to an arc structure, and a shaft plug rod (62) is set in the inner shaft cylinder (61). One end of the shaft plug rod (62) is fixed to the adapter sleeve (25). A buffer bin (63) is set in the inner shaft cylinder (61) for limited sliding. A ring plug (64) is fixed on the outer surface of the buffer bin (63) and is sealed and slidably set in the inner shaft cylinder (61) by the ring plug (64). One end of the shaft plug rod (62) is slidably fitted in the buffer bin (63), and a plurality of energy-dissipating springs (65) are connected to the buffer bin (63). An air flow hole is set below the buffer bin (63), so that the buffer bin (63) is connected to the inner shaft cylinder (61).

2. The protective device for absorbing instantaneous impact energy of collapse and landslide on large-diameter pipelines according to claim 1, characterized in that: The adjustment protection plate (3) includes a mounting ring frame (31), the mounting ring frame (31) is sleeved and fixed on the outer protection buffer assembly (2), a guide seat (32) is vertically fixed on the mounting ring frame (31), an inner sleeve is symmetrically provided on the guide seat (32), an elastic support member (33) is slidably installed on one side of the guide seat (32), and guide rods corresponding to the inner sleeve are provided on both sides of the elastic support member (33), one end of the guide rod slides into the inner sleeve, and a support spring (34) is connected between the elastic support member (33) and the guide seat (32); an outer plate frame (5) is hinged on the elastic support member (33), and a telescopic guide rod (35) is rotatably connected to the elastic support member (33), and one end of the telescopic guide rod (35) is connected to the outer plate frame (5).

3. The protective device for absorbing instantaneous impact energy of collapse and landslide on large-diameter pipelines according to claim 2, characterized in that: The outer plate frame (5) is configured as a three-section foldable structure, and an external telescopic member (51) is connected to the outer plate frame (5), and a plurality of mounting recesses are provided on the outer plate frame (5) located in the middle, wherein a guide plate (53) is rotatably provided in each mounting recess through a bearing (52), and the cross section of the guide plate (53) is an obtuse triangle structure, and a torsion spring is also sleeved on the guide plate (53).

4. The protective device for absorbing instantaneous impact energy of collapse and landslide on large-diameter pipelines according to claim 3, characterized in that: A buffer spring (66) is provided in the inner shaft cylinder (61), and a pressure valve (67) is provided on one side of the inner shaft cylinder (61).

5. The protective device for absorbing instantaneous impact energy of collapse and landslide on large-diameter pipelines according to claim 4, characterized in that: A guide cavity (68) is provided in the regulating protection plate (3), the guide cavity (68) is connected to the buffer chamber (63) through an internal pipe, and a piston (69) is slidably provided in the guide cavity (68).

6. The protective device for absorbing instantaneous impact energy of collapse and landslide on large-diameter pipelines according to claim 5, characterized in that: The protective layer (4) comprises an airbag layer (41), which is circumferentially distributed outside the pipe body (1). The airbag layer (41) is connected to the pressure valve (67) through a hose, and a rubber protective sleeve (42) is connected to the outer surface of the airbag layer (41).

7. A method for constructing a protective device for absorbing the instantaneous impact energy of collapse and landslides on oversized pipes, using the protective device for absorbing the instantaneous impact energy of collapse and landslides on oversized pipes as claimed in claim 5, characterized in that: The following steps are involved: S1. Protective layer installation: According to the terrain, the buried pipeline body (1) is removed and the protective layer (4) is installed, wherein the air bag layer (41) in the protective layer (4) is at 80% inflation saturation. The pipeline body (1) suspended outside is also installed with the protective layer (4) and the outer protective buffer assembly (2) is installed thereon. S2. Adaptive adjustment: according to the environmental landslide, the collapse impact force is estimated, and the installation orientation of the external protection buffer assembly is adjusted to provide impact protection for the pipeline body (1) where the probability of landslide collapse is higher; S3. External adjustment: preliminary adjustment of the overhead angle of the adjustable protective plate (3) is performed by the telescopic guide rod (35), wherein the tilting overhead angle of the adjustable protective plate can be adjusted by rotating the adapter sleeve (25) counterclockwise. At this time, in the impact protection, the outer plate frame (5) can control the adapter sleeve (25) to rotate clockwise in one direction and convert the impact force into a torsional effect on the external ring sleeve (22) to avoid radial impact fracture of the pipeline body (1); S4. The interior is adjusted, and the airbag layer (41) in the protective layer (4) is initially supplied with air so that it is in a 20% inflation state.

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