Protective structure for pressure pipelines

Abstract

The utility model relates to pipeline protection technical field, concretely relates to a protection structure for pressure pipeline, including two pipelines, two pipelines are equipped with the protection cover outside flange junction, the protection cover is by two cover bodies detachable connection, and each cover body is constituted by arc plate and both sides connecting plate, still including the buffer piece outside each cover body, the buffer piece includes connecting half ring and rotary drum, two connecting plates of the cover body opposite sides all are equipped with connecting half ring, and the outer edge between two connecting half rings opposite surfaces is connected through a plurality of connecting rods, and a plurality of connecting rods are annular array shape and located the arc plate outside cover body, and the rotary drum is rotatably connected outside each connecting rod, and the rotary drum is equipped with the elastic cylinder fixedly, every connecting half ring is with the connecting plate left and right elastic connection on the same side of cover body.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, specifically to a protective structure for pressure pipelines. Background Technology

[0002] Water, gas, or oil are transported over long distances through pressure pipelines. Adjacent pressure pipelines are connected by flanges, which are weak points in the pipeline connection, especially in outdoor pipeline systems. Pipelines at flange connections are susceptible to impacts from external forces such as falling rocks, leading to flange seal failure. To address this issue, protective structures are installed outside the flanges to isolate them from external forces, such as the pipeline protection structures mentioned in "Innovative Design and Application of Submarine Pipeline Flange Protectors."

[0003] However, protective structures are generally installed and fixed on pipes. When forces are applied to the protective structure, the forces are transmitted to the pipes through the protective structure, which can cause problems such as pipe deformation. Utility Model Content

[0004] This invention addresses the problems of easy impact failure at pipe flange connections and the difficulty of weakening the forces transmitted to the pipe by existing protective structures. It provides a protective structure for pressure pipelines that can prevent the pipe connection flanges from being directly impacted while also dispersing external forces.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A protective structure for pressure pipelines includes two pipelines, with a protective cover on the outside of the flange connection between the two pipelines. The protective cover is composed of two detachably connected cover bodies, each cover body consisting of an arc plate and connecting plates on both sides. It also includes a buffer component located on the outside of each cover body. The buffer component includes a connecting half-ring and a rotating cylinder. Each of the two connecting plates of the cover body has a connecting half-ring on its opposite sides. The outer edges of the two connecting half-rings are connected by multiple connecting rods arranged in a circular array outside the arc plate of the cover body. Each connecting rod is rotatably connected to a rotating cylinder, and an elastic cylinder is fixedly fitted over the rotating cylinder. Each connecting half-ring is elastically connected to the connecting plate on the same side of its respective cover body.

[0007] Furthermore, rubber pads are provided on the inner ring surfaces of the two connecting plates of the cover, and the rubber pads on the two connecting plates of the cover are stuck outside the two pipes; each connecting plate has a connecting plate connected to both ends of the outer ring surface, and the ends of the connecting plates on the same side of the two covers are in contact with each other, and the two connecting plates at the same end of the outer ring surface of the contacting connecting plates are connected by bolts.

[0008] Furthermore, the ends of the connecting half-rings on the same side of the two buffer components are in contact with each other, and each end of the outer ring surface of the connecting half-ring is connected with a connecting plate two. The two connecting plates two at the same end of the outer ring surface of the contacting half-rings are connected by bolt two.

[0009] Furthermore, the inner walls of each of the rotating cylinders are connected to the peripheral walls of the connecting rods via sealed bearings at both ends, and the two ends of the rotating cylinders are respectively flush with the two ends of the arc plate of the cover body.

[0010] Furthermore, the outer walls of adjacent rotating cylinders on the buffer are close to each other, and the diameter of the circle containing the inner ends of multiple rotating cylinders on the buffer is larger than the outer diameter of the arc plate of the corresponding cover.

[0011] Furthermore, the two connecting half-rings on the buffer are provided with multiple sliding rods on their opposite surfaces. The multiple sliding rods on each connecting half-ring are arranged in a ring array. The free end of each sliding rod moves through the connecting plate on the same side of the corresponding cover. Each sliding rod is fitted with a spring. One end of each spring is connected to the connecting half-ring corresponding to the sliding rod, and the other end is connected to the connecting plate through which the sliding rod passes.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] This invention is installed on the outside of the flange connection of the pipeline. When an external impact object strikes any of the rotating cylinders of the buffer, the elastic cylinder on the rotating cylinder can absorb part of the impact force and drive the rotating cylinder to rotate. The rotation of the rotating cylinder changes the trajectory of the external impact object. The force transmitted to the pipeline through the buffer and the cover will be significantly reduced. Therefore, this invention can avoid problems such as pipeline deformation.

[0014] The buffer component of this invention is elastically connected to the corresponding cover on the left and right sides, which can buffer the impact of lateral impacts and further reduce the impact force of the impact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a sectional top view of the present invention (pipes and flanges are not sectional).

[0017] Figure 3 This is a structural schematic diagram of the cover connecting buffer component of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the connecting half-ring and the slide rod of this utility model;

[0019] Figure 5 This is a right-section view of the connection between the two connecting plates of this utility model;

[0020] Figure 6This is a right-section view of the connection between the two connecting half-rings of this utility model.

[0021] The attached diagram is labeled as follows: 1. Pipe, 2. Flange, 3. Arc plate, 4. Connecting plate, 5. Connecting half ring, 6. Rotary cylinder, 7. Connecting rod, 8. Elastic cylinder, 9. Rubber pad, 10. Connecting plate one, 11. Bolt one, 12. Nut one, 13. Connecting plate two, 14. Bolt two, 15. Nut two, 16. Sliding rod, 17. Spring, 18. Sealed bearing. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] like Figures 1-6 As shown, a protective structure for pressure pipelines includes two pipelines 1, with a protective cover on the outside of the connection point of the two pipelines 1 via a flange 2. The protective cover is cylindrical and located outside the flange 2. The protective cover consists of two detachably connected cover bodies. Each cover body is composed of an arc plate 3 and connecting plates 4 on both sides. The connecting plate 4 on each cover body is a semi-circular ring. The outer edges of the opposite faces of the two connecting plates 4 are connected by the arc plate 3. The structure also includes a buffer component located on the outside of each cover body. The buffer component includes a connecting semi-ring 5 and a rotating cylinder 6. Each of the two connecting plates 4 of the cover body has a connecting semi-ring 5 on its opposite sides. The connecting semi-ring 5 has arc-shaped inner and outer surfaces. The semi-circular rings are connected by matching the inner diameter of the connecting semi-rings with the outer diameter of the pipe. The outer edges of the opposite surfaces of the two connecting semi-rings 5 ​​are connected by multiple connecting rods 7. The connecting rods 7 are round rods, and the multiple connecting rods 7 are arranged in a ring array outside the arc plate 3 of the cover. Each connecting rod 7 is rotatably connected to a rotating cylinder 6. An elastic cylinder 8 is fixedly installed on the outer sleeve of the rotating cylinder 6. The rotating cylinder 6 is a cylindrical body with open ends. The elastic cylinder 8 is a cylindrical body made of polyurethane elastomer material. Polyurethane elastomer material has the characteristics of high elasticity, impact resistance and aging resistance. Each connecting semi-ring 5 is elastically connected to the connecting plate 4 on the same side of the cover.

[0024] Rubber pads 9 are provided on the inner ring surfaces of the two connecting plates 4 of the cover. The rubber pads 9 correspond to the inner ring surfaces of the connecting plates 4. The rubber pads 9 on the two connecting plates 4 of the cover are stuck outside the two pipes 1. The purpose of setting the rubber pads is to increase the friction between the connecting plates and the pipes. Each connecting plate 4 has a connecting plate 10 connected to both ends of its outer ring surface. The connecting plate 10 is a rectangular plate. The ends of the connecting plates 4 on the same side of the two covers are in contact. The two connecting plates 10 at the same end of the outer ring surfaces of the contacting connecting plates 4 are connected by bolts 11. The free end of the bolts 11 moves through the two connecting plates 10 and is limited by nuts 12.

[0025] The ends of the connecting half-rings 5 ​​on the same side of the two buffer components are in contact with each other. Each connecting half-ring 5 has a connecting plate 2 13 connected to both ends of the outer ring surface. The two connecting plates 2 13 at the same end of the outer ring surface of the contacting connecting half-rings 5 ​​are connected by bolt 2 14. The free end of bolt 2 14 moves through the two connecting plates 2 13 and is limited by nut 2 15.

[0026] The inner walls of each of the rotating cylinders 6 are connected to the peripheral walls of the connecting rod 7 via sealed bearings 18. The two ends of the rotating cylinders 6 are flush with the two ends of the arc plate 3 of the cover body. The sealed bearings can prevent external dust from affecting the rotational stability of the sealed bearings.

[0027] The outer walls of adjacent rotating cylinders 6 on the buffer are close to each other, and the diameter of the circle containing the inner ends of multiple rotating cylinders 6 on the buffer is larger than the outer diameter of the arc plate 3 of the corresponding cover.

[0028] On the two opposing surfaces of the buffer component, there are multiple slide rods 16. The multiple slide rods 16 on each connecting half ring 5 are arranged in a ring array along the center of the connecting half ring 5. The slide rod is a round rod. The free end of each slide rod 16 moves through the connecting plate 4 on the same side of the corresponding cover. Each slide rod 16 is fitted with a spring 17. One end of each spring 17 is connected to the connecting half ring 5 corresponding to the slide rod 16, and the other end is connected to the connecting plate 4 through which the slide rod 16 passes.

[0029] During installation, the two covers of this utility model are connected to the outside of the flange 2 connection on the existing pipe 1. The two covers constitute a protective cover for the flange 2, and each cover has a buffer component.

[0030] In use, when an external impacting object such as a falling rock strikes any of the rotating cylinders 6 of the buffer, the elastic cylinder 8 on the outside of the rotating cylinder 6 is first compressed by the impact. The elastic cylinder 8 absorbs part of the initial kinetic energy of the impacting object, reducing the impact force subsequently transmitted to the rotating cylinder 6. The remaining force of the impacting object acts on the rotating cylinder 6. The force of the impacting object usually does not act directly on the axis of the rotating cylinder 6, but generates a torque that drives the rotating cylinder 6 to rotate. After the rotating cylinder 6 rotates, it changes the direction of motion of the impacting object. The trajectory of the impacting object is changed to fly away almost along the tangent of the rotating cylinder 6. The remaining kinetic energy of the impacting object only acts on its motion after changing direction. Therefore, after the impact force of the impacting object is absorbed by the elastic cylinder 8 and then drives the rotating cylinder 6 to rotate and change direction, the force transmitted to the pipeline through the buffer and the cover will be significantly reduced.

[0031] When the buffer of this utility model is subjected to a lateral impact, the lateral impact acts on the connecting half ring 5 on the buffer. After the connecting half ring 5 is subjected to the force, it moves towards the connecting plate 4 on the same side of the corresponding cover. The spring 17 on the connecting half ring 5 is compressed, and the spring on the other connecting half ring is stretched. The energy of the lateral impact is converted into the potential energy of the spring 17, thereby reducing the force of the impact transmitted to the pipe 1 through the buffer and the cover.

[0032] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A protective structure for pressure pipelines, comprising two pipelines (1), wherein a protective cover is provided on the outside of the connection point of the two pipelines (1) via a flange (2), the protective cover being detachably connected by two cover bodies, each cover body being composed of an arc plate (3) and connecting plates (4) on both sides; characterized in that, It also includes a buffer component provided on the outside of each cover. The buffer component includes a connecting half ring (5) and a rotating cylinder (6). The two connecting plates (4) of the cover are provided with connecting half rings (5) on opposite sides. The outer edges of the two connecting half rings (5) are connected by multiple connecting rods (7). The multiple connecting rods (7) are arranged in a ring array on the outside of the arc plate (3) of the cover. Each connecting rod (7) is rotatably connected to a rotating cylinder (6). The rotating cylinder (6) is fitted with an elastic cylinder (8) on its outer sleeve. Each connecting half ring (5) is elastically connected to the connecting plate (4) on the same side of the cover.

2. The protective structure for pressure pipelines according to claim 1, characterized in that, Rubber pads (9) are provided on the inner ring surfaces of the two connecting plates (4) of the cover. The rubber pads (9) on the two connecting plates (4) of the cover are stuck outside the two pipes (1). Each connecting plate (4) has a connecting plate (10) at both ends of its outer ring surface. The ends of the connecting plates (4) on the same side of the two covers are in contact with each other. The two connecting plates (10) at the same end of the outer ring surface of the contacting connecting plates (4) are connected by bolts (11).

3. The protective structure for pressure pipelines according to claim 1, characterized in that, The ends of the connecting half-rings (5) on the same side of the two buffer components are in contact with each other. Each connecting half-ring (5) has a connecting plate (13) at both ends of the outer ring surface. The two connecting plates (13) at the same end of the outer ring surface of the contacting connecting half-rings (5) are connected by bolts (14).

4. The protective structure for pressure pipelines according to claim 1, characterized in that, The inner walls of each of the rotating cylinders (6) are connected to the peripheral walls of the connecting rod (7) via sealed bearings (18), and the two ends of the rotating cylinders (6) are flush with the two ends of the arc plate (3) of the cover body.

5. A protective structure for pressure pipelines according to claim 4, characterized in that, The outer walls of adjacent rotating cylinders (6) on the buffer are close to each other, and the diameter of the inner end circle of multiple rotating cylinders (6) on the buffer is greater than the outer diameter of the arc plate (3) of the corresponding cover.

6. A protective structure for pressure pipelines according to claim 1, characterized in that, Multiple slide rods (16) are provided on the opposite surfaces of the two connecting half-rings (5) on the buffer component. The multiple slide rods (16) on each connecting half-ring (5) are arranged in a ring array. The free end of each slide rod (16) moves through the connecting plate (4) on the same side of the corresponding cover. Each slide rod (16) is fitted with a spring (17). One end of each spring (17) is connected to the connecting half-ring (5) corresponding to the slide rod (16), and the other end is connected to the connecting plate (4) through which the slide rod (16) passes.

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