Protection device and method for damage and fracture of gas pipeline

A technology for gas pipelines and protective devices, which is applied to pipeline systems, pipes, pipe components, etc., can solve problems such as damage and rupture of gas pipelines, achieve rapid and tight connection, tight inflatable fit, and prevent interruption of gas transmission

Active Publication Date: 2021-04-06
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems caused by the damage and rupture of the existing gas pipeline, the present invention provides a protective device and protection method for damage and rupture of the gas pipeline, Oil and gas transportation will not be interrupted, which can effectively prevent accidents caused by oil and gas leakage losses, ensure safe operation of pipelines, and effectively protect the environment

Method used

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  • Protection device and method for damage and fracture of gas pipeline
  • Protection device and method for damage and fracture of gas pipeline
  • Protection device and method for damage and fracture of gas pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see figure 1 The protective device for gas pipeline damage and rupture provided in this embodiment includes a cylindrical main body 1; a sealing member is arranged on the inner wall of the main body 1 .

[0039] In this example, see figure 1 and Figure 5 , the main body 1 is a cylindrical structure, the main body 1 includes a left pipe 11 and a right pipe 12 connected to the left pipe 11 through a clamping part; the left pipe 11 and the right pipe 12 are both semi-cylindrical structures with the same structure; the left pipe 11 and the The right pipe 12 forms the cylindrical body 1 .

[0040] see figure 2 , The clamping part includes a return groove 13 and a protrusion 14; the return groove 13 is placed at the end of the left pipe 11; the protrusion 14 is placed at the end of the right pipe 12; the protrusion 14 is snapped into the return groove 13. The return groove 13 is an arc groove, and the protrusion 14 is a housing-shaped protrusion matched with the return ...

Embodiment 2

[0044] see image 3 , in this embodiment, the protective device for damage and rupture of the gas pipeline further includes a side pipe 3; the side pipe 3 is arranged in parallel with the main body 1. Specifically, both ends of the side pipe 3 communicate with the gas pipeline 2 to be protected respectively.

[0045] In this embodiment, the protection device for damage and rupture of the gas pipeline also includes a valve 4; the valve 4 is placed at the front end of the main body 1; specifically, the valve 4 is placed on the gas pipeline 2 to be protected.

[0046]In this embodiment, the valve 4 is placed at the front end of the weak point of the gas transmission pipeline 2 to be protected; the side pipe 3 is a U-shaped pipe, and one end of the side pipe 3 is placed on the valve 4 and communicated with the gas transmission pipeline 2 to be protected; the other end of the side pipe 3 Placed at the rear end of the weak point of the gas pipeline 2 to be protected and communicate...

Embodiment 3

[0048] The protection method for gas pipeline damage and rupture provided by this embodiment includes the following steps:

[0049] 1) Determine the weak point where damage and rupture occur on the gas pipeline 2 to be transported;

[0050] Specifically, 1.1) collect relevant background, technical conditions and geological conditions when the buried gas pipeline 2 is damaged during the relevant oil and gas transportation, and form a complete database;

[0051] 1.2) Predict the possible positions of weak points by means of probability statistics, find out the areas prone to oil leakage of the gas pipeline 2, and find out the geological laws existing in the possible oil leakage places;

[0052] 1.3) According to the geological data, it is judged that the section with an oil leakage probability exceeding 95% on the gas pipeline 2 is a weak point;

[0053] 2) Put the main body 1 on the gas pipeline 2 at the weak point, and seal the inner wall of the main body 1 and the outer wall...

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Abstract

The invention relates to the technical field of pipeline engineering construction, in particular to a protection device and method for damage and fracture of a gas pipeline. The protection device comprises a cylindrical main body; a sealing part is arranged on the inner wall of the main body and comprises an air nozzle and an air bag; a groove is formed in the inner wall of the main body in the radial direction; the air bag is arranged in the groove; one end of the air nozzle is communicated with the air bag; the other end of the air nozzle is arranged outside the main body; the main body comprises a left pipe and a right pipe connected with the left pipe through a clamping part; the left pipe and the right pipe are both of semi-cylindrical structures with the same structure, and each clamping component comprises a return groove and a protrusion; the return grooves are formed in the end part of the left pipe; the protrusions are arranged at the end part of the right pipe; the protrusions are clamped into the return grooves; and a side pipe and a valve are further included. Oil and gas conveying cannot be interrupted, accidents caused by oil and gas leakage loss can be effectively prevented, safe operation of the pipeline is ensured, and the environment is effectively protected.

Description

technical field [0001] The invention relates to the technical field of pipeline engineering construction, in particular to a protection device and a protection method for gas pipeline damage and rupture. Background technique [0002] In pipeline construction, especially when oil and gas pipelines operate under high pressure for a long time, the mechanical properties of metal pipelines will gradually degrade, and the problems in the pipeline weld itself and the tiny cracks caused by stress corrosion will expand. When the cracks develop to a certain extent , will bring sudden pipeline rupture accidents, such pipeline damage and rupture may cause disastrous consequences, such as pipeline leakage, which may easily cause oil and gas loss, and the leaked oil and gas may cause fires, explosions and other accidents, and the safety is poor; In addition, oil and gas leakage is harmful to the environment. [0003] When a large sudden pipeline leakage accident occurs, such as rupture, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/17F16L41/02F16L55/10F17D5/02
CPCF16L55/17F16L41/02F16L55/10F17D5/02
Inventor 代建波翁光远吕刚宋梅梅张煜敏
Owner XI'AN PETROLEUM UNIVERSITY
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