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Pipeline repair method and repaired pipeline

A pipeline repair and pipeline technology, applied in the direction of pipes/pipe joints/fittings, pipe components, mechanical equipment, etc., can solve the problems of pipeline structural damage, complicated operation, etc., and achieve the effect of fast construction operation and good leakage prevention effect

Pending Publication Date: 2018-11-02
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a pipeline repair method, which solves the problems of complex operation and structural damage to the pipeline caused by the pipeline repair process, and can achieve better anti-leakage effect

Method used

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  • Pipeline repair method and repaired pipeline
  • Pipeline repair method and repaired pipeline
  • Pipeline repair method and repaired pipeline

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Embodiment Construction

[0042] The present invention will be described in detail below with a specific embodiment in conjunction with the accompanying drawings.

[0043] Such as figure 1 As shown, a repaired pipeline includes a pipeline body 1 , a sealant layer 4 , a rubber seal layer 2 and a rigid annular adjustment assembly.

[0044] The pipeline body 1 is the pipeline to be repaired, that is, it contains pipeline dislocations, or / and pipeline gaps. The dislocations are mainly caused by uneven settlement between pipe joints at the pipeline interface due to geological differences. Pipeline gaps mainly refer to the adjacent pipe joints at the pipeline interface. gaps and gaps formed by cracks in the inner wall of the pipe. Such as Figure 6 The working condition in which there is a gap between adjacent pipe joints at the pipe joint is shown, and this working condition is used for description in this embodiment. Sealant is filled in the pipe gap to form a sealant layer 4 . In this embodiment, the ...

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Abstract

The invention provides a pipeline repair method and a repaired pipeline. The pipeline repair method comprises the steps that firstly, an annular seal part is put in a reserve area of the pipeline, then a rigid annular adjusting unit is installed on the inner surface of the annular seal part and is adjusted, the outer contour of the rigid annular adjusting unit is expanded, thus the rigid annular adjusting unit tightly presses the annular seal part, and the annular seal part is tightly attached to the pipeline face of the reserve area. The pipeline repaired with the pipeline repair method comprises a pipeline body, a rigid annular adjusting assembly and a rubber seal layer arranged between the pipeline body and the rigid annular adjusting assembly. The pipeline repair method provided by theinvention is simple to operate, structure damage of the pipeline is avoided, and the pipeline repaired with the pipeline repair method can achieve a better leakproof effect.

Description

technical field [0001] The invention relates to the technical field of pipeline repair, in particular to a pipeline repair method and a pipeline repaired by the method. Background technique [0002] Pipes, such as sewer, gas, steam, and water pipes made of ductile iron, concrete, asbestos concrete, clay tiles, and other pipe structures, are often buried underground or in inaccessible areas. These pipes will deteriorate, crack and leak due to dislocation due to uneven settlement at pipe joints due to differences in soil quality, or due to mechanical damage, premature wear, manufacturing defects, corrosion, erosion, adverse operating conditions, and other factors. [0003] The traditional repair technology at the pipe joint fixes the rubber waterstop to the area to be repaired by means of expansion bolts or chemical bolts and steel pressure plates, which mainly rely on the expansion bolts or chemical bolts distributed along the entire circumference of the pipeline to fix the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/163
CPCF16L55/163
Inventor 徐震徐春蕾施琦杨青坡曹志杰胡嘉娣费婷
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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