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Pipeline maintenance method

A technology for pipes and pipe sleeves, which is applied in the maintenance of pipes and large-scale pipes, can solve the problems of high cost and reduce maintenance costs of pipes.

Active Publication Date: 2021-02-23
BEIJING INST OF WATER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high cost caused by the maintenance of pipelines by replacement method in the prior art, and provide a maintenance method for pipelines. Batch replacement reduces pipeline maintenance costs

Method used

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0023] The invention provides a pipeline maintenance method, such as figure 1 and 2 As shown, the pipeline 1 includes an inner pipe 2 and a sleeve 3 sleeved outside the inner pipe. The sleeve 3 has a defect. The maintenance method includes: S1: put the sleeve 3 along the The length direction of the pipeline 1 is divided into a plurality of sockets 7 , and the multiple sockets 7 are replaced in batches, so as to complete the maintenance of the pipeline 1 . Among them, the pipeline can be in various reasonable forms, for example, it can be a water pipeline, specifically, it can be a PCCP pipe (prestressed steel cylinder concrete pipe), a PCP pipe (prestressed re...

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Abstract

The invention relates to the technical field of maintenance of large pipelines, in particular to a pipeline maintenance method. A pipeline (1) comprises an inner pipe (2) and a pipe sleeve (3) arranged outside the inner pipe (2) in a sleeving mode, and the pipe sleeve (3) has defects. The maintenance method comprises the steps that S1, the pipe sleeve (3) is divided into a plurality of sleeve sections (7) in the length direction of the pipeline (1), the multiple sleeve sections (7) are replaced in batches, and therefore maintenance of the pipeline (1) is completed. According to the pipeline maintenance method, the pipe sleeve is divided into the multiple sleeve sections to be replaced in batches, and the maintenance cost of the pipeline is reduced.

Description

technical field [0001] The invention relates to the technical field of maintenance of large pipelines, in particular to a maintenance method for pipelines. Background technique [0002] At present, there are more and more projects using water pipelines in large-scale water diversion projects in my country, such as PCCP pipes (prestressed steel cylinder concrete pipes), PCP pipes (prestressed reinforced concrete pipes), glass sand pipes, reinforced concrete pipes, etc. Circular pipes such as pipes and steel pipes are water pipelines commonly used in the prior art. However, due to design and construction quality defects, improper operation management and other reasons, pipe bursts have occurred in many water diversion projects, seriously threatening the safe operation of water pipelines. [0003] Most of the PCCP burst pipes are caused by defects such as broken wires of the hoop prestressed steel strands wound on the high-strength concrete pipe core. It is necessary to replace...

Claims

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Application Information

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IPC IPC(8): F16L9/14F16L1/036F16L1/06F16L1/024F16L55/18B28B1/14B28D1/00
CPCF16L9/14F16L1/036F16L1/06F16L1/024F16L55/18B28B1/14B28D1/00
Inventor 刘烨华杨进新张奇王惠萍石维新孙海龙王帆丁艳辉吕兵王东黎
Owner BEIJING INST OF WATER
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