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Pipe fitting and method for blocking pipeline

A technology for pipes and pipe fittings, which is applied in the field of pipe fittings and blocking pipes, and can solve the problems of inability to completely block the flow of media in small-diameter pipes, maintenance, emergency repairs, and safety hazards in transformation operations.

Pending Publication Date: 2019-03-05
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the "clamp flat" method cannot completely block the circulation of the medium in the small-diameter pipeline, and it will bring safety hazards to maintenance, emergency repair and transformation operations

Method used

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  • Pipe fitting and method for blocking pipeline
  • Pipe fitting and method for blocking pipeline
  • Pipe fitting and method for blocking pipeline

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Embodiment Construction

[0110] In order to make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Unless otherwise defined, all technical terms used in the embodiments of the present invention have the same meanings as commonly understood by those skilled in the art.

[0111] In the first aspect, the embodiment of the present invention provides a pipe fitting for blocking pipes with an outer diameter of 50 mm or less, see Picture 1-1 , 1-2 , 1-3 and 1-4, the pipe fitting includes: a split main body 1 , a split isolation sleeve 2 and a first blocking component 3 .

[0112] Among them, see Figure 3-1 , 3-2 And 3-3, the split spacer sleeve 2 includes a first pipe body 21 and a second pipe body 22, the first pipe body 21 and the second pipe body 22 all have semi-cylindrical grooves with open ends, the first The tube body 21 and the second tube body ...

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Abstract

The invention discloses a pipe fitting and method for blocking a pipeline. The pipeline has an outer diameter of 50 mm or less, and the pipe fitting comprises a split type body, a split type isolationsleeve and a first blocking member. The split type isolation sleeve includes a first tube body and a second tube body, and the first tube body and the second tube body are combined to form a cavity which can accommodate the pipeline to be blocked. The split type body includes a first body and a second body, wherein the first body is provided with a first groove opened at both ends and a first through hole with one end opened and the other end closed, and the open end of the first through hole communicates with the first groove. The second body is provided with a second groove opened at both ends and a second through hole opened at both ends, and one end of the second through hole communicates with the second groove. The first blocking member is used for blocking the other end of the second through hole. The shape of the inner surface of a cavity formed by combination of the first groove and the second groove is matched with the shape of the outer surface of the split type isolation sleeve. The pipe fitting can completely block the circulation of a medium in the pipeline.

Description

technical field [0001] The invention relates to the technical field of oil and gas pipeline maintenance, emergency repair and transformation, in particular to a pipe fitting for blocking a pipeline and a method for blocking the pipeline. Background technique [0002] Small-diameter pipes with an outer diameter of less than 50 mm are widely found in stations and valve rooms of urban gas pipelines and long-distance oil and gas pipelines. For example, a small-diameter pipe with an outer diameter of less than 50mm is connected to the main pipeline of an urban gas pipeline or a long-distance oil and gas pipeline, and then pressure, temperature or other detection instruments are connected to the small-diameter pipeline to monitor the medium in the main pipeline. In practical application, it is sometimes necessary to maintain, repair or modify the small-diameter pipeline without the main pipeline being out of service, for example, cutting off the small-diameter pipeline or replacin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/105F16L55/10F16L41/16F16L41/04F16L41/12
CPCF16L41/04F16L41/12F16L41/16F16L55/10F16L55/105
Inventor 姜修才周若厅贾世民陶伟莉夏国发徐海波王建伟张蕾
Owner BC P INC CHINA NAT PETROLEUM CORP
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