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Method for maintaining inspection well without cutting off water

A technology of inspection wells and inspection boxes, which is applied in waterway systems, water conservancy projects, water supply devices, etc., can solve the problems that inspection wells and pipelines cannot realize non-stop construction.

Pending Publication Date: 2021-12-24
CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a maintenance method for inspection wells without stopping water, which solves the technical problem that existing inspection well pipelines cannot realize non-stop water construction

Method used

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  • Method for maintaining inspection well without cutting off water
  • Method for maintaining inspection well without cutting off water
  • Method for maintaining inspection well without cutting off water

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Embodiment 2

[0034] Embodiment 2, a maintenance method for inspection wells without stopping water, the transfer pipeline includes two sections of flexible pipes and two sections of hard pipes, the two sections of hard pipes are provided with valves for controlling on-off, when replacing the sealed box, First close all the valves in the two transfer pipes connected to the upstream and downstream main pipes 1 respectively, and then remove part of the pipes between the closed valves from the sealed box, and connect the removed pipes to each other. Finally, open the valve so that the upstream and downstream main pipelines 1 are connected through the sealed box and the newly connected pipeline at the same time. Remove it from the inspection well, hoist the new sealed box to the inspection well, and connect the transfer pipes to the new sealed box one by one, and open the corresponding valves after all the transfer ports on the new sealed box are connected to the transfer pipes .

[0035] Othe...

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Abstract

The invention discloses a method for maintaining an inspection well without cutting off water. The method comprises a new pipeline construction method, an original main pipeline removal method and an original main pipeline rerouting method, a sealing box body which is used for connecting an upstream main pipeline and a downstream main pipeline is arranged in the inspection well, a plugging unit is arranged at the end, which is located in the inspection well, of each main pipeline in a sealing mode, both the plugging unit and the sealing box body are provided with a plurality of adapters, a plurality of adapting pipelines are connected between the plugging unit and the sealing box body through the adapters, each adapting pipeline comprises at least two hoses and a hard pipe, a valve which is used for controlling connection and disconnection is arranged on the hard pipe, the sealing box body is connected with a hard adapting pipe, a valve which is used for controlling connection and disconnection is arranged on the hard adapting pipe, and the end opening of the hard adapting pipe is matched with the adapting pipeline. According to the method, various pipeline construction requirements can be met on the premise that water is not cut off.

Description

technical field [0001] The invention relates to the technical field of inspection well pipeline maintenance, in particular to a maintenance method for inspection wells without stopping water. Background technique [0002] Inspection wells are generally located at pipeline intersections, bends, pipe diameter or slope changes, and at certain distances on straight pipe sections, which is convenient for regular inspection of ancillary structures. The inspection well is used to monitor the operation of the pipeline, add new pipelines, reduce old pipelines and other construction operations. In the prior art, when the above-mentioned construction is carried out on the pipeline components, the operation of the main pipeline needs to be stopped, which will cause a water stop within a certain range. If the water cut-off time is too long, it will affect the production and life of nearby residents and enterprises, and the larger the diameter of the water cut-off pipe, the more difficult...

Claims

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Application Information

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IPC IPC(8): E03F5/02E02D29/12
CPCE03F5/02E03F5/021E02D29/12E02D29/121
Inventor 史泽波周大伟王晓娟丁学涛张新礼杜营飞梁博强张祥伟陈瑞玺文亚洲
Owner CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG
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