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A pipeline blocking device

A technology for pipes and sealing gaskets, which is applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., and can solve the problem of reduced axial strength of pipes, immature technology and equipment for external reinforcement repairs, and adjustment of preload Difficulties and other problems, to achieve the effect of safe and convenient operation

Inactive Publication Date: 2017-10-31
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The third category is that large-scale damage occurs on a relatively long pipe section, resulting in a significant reduction in the axial strength of the pipe
It is difficult to adjust the pretightening force in this way, and it is often difficult to ensure that the two sealing methods are effective at the same time.
[0013] To sum up, for high-pressure and high-risk pipelines, the technology and equipment for external strengthening and repairing local leakage points are still immature, and the innovation and research and development of related technologies have great application value

Method used

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Embodiment Construction

[0030] The present invention is not limited by the following implementation examples, and specific implementation manners can be determined according to the technical solutions of the present invention and actual conditions. Combine below figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 The present invention is described below. The positional relationship of up, down, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0031] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 shown.

[0032] The upper casing 2 and the lower casing 1 are hollow semi-cylindrical bodies, the upper casing 2 and the lower casing 1 are connected by bolts 6, and the lower casing 1 is provided with a rectangular groove at the connection part with the upper casing 2, so that A sealing gasket 5 is arranged in the rectangular groove. The upper casing 2 is provided with a boss at the part combined with the lower ...

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Abstract

The invention relates to a pipeline plugging device which can plug local leaking points of a pipeline. The technical scheme includes that an upper shell and a lower shell jointly cover a pipeline leaking point, a sealing gasket is compressed between the upper shell and the lower shell in a tongue-and-groove manner, annulus between the upper and lower shell and the pipeline is provided with a sealing filler, and a bolt is used to compress the sealing filler at the ends of the upper and lower shells. The pipeline plugging device is simple in structure and high in implementability; axial sealing and radial sealing are separated and can be adjusted respectively, so that sealing effect is easier to guarantee.

Description

technical field [0001] The invention relates to a pipeline blocking device. Background technique [0002] Pipeline damage can be roughly divided into three categories: the first category is local small damage, such as leakage from small holes or small cracks. Such leaks are usually caused by localized corrosion or welding defects. The second type is local damage, which needs to add a protective cover outside the steel pipe or replace the damaged part with a short pipe. This type of damage is most common, such as when a ship's anchor is hooked. The third category is that large-scale damage occurs on a relatively long pipe section, resulting in a significant reduction in the axial strength of the pipe. This situation requires the replacement of the damaged section with a long pipe section. [0003] Local leakage of pipelines due to local corrosion or welding defects is the most common failure mode. At present, it is usually repaired by partial replacement. Partial replac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/172
CPCF16L55/172
Inventor 张梁邓严邓兰刘稳何虹钢
Owner SOUTHWEST PETROLEUM UNIV
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