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Method for repairing overall non-excavation sewage pipe through hot water overturning curing

A sewage pipeline, trenchless technology, applied in the direction of pipe components, pipes/pipe joints/pipes, mechanical equipment, etc., can solve the problems of excavation and construction, and achieve the effect of reducing cost, fast speed and simple construction process

Inactive Publication Date: 2020-01-10
CHINA NAT CHEM ENG NO 14 CONSTR
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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 provide a method for the overall repair of non-excavation sewage pipelines by using hot water turning over and curing, so as to solve the problem of direct excavation construction in some important or complex terrain areas during the maintenance of traditional rain and sewage pipelines

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  • Method for repairing overall non-excavation sewage pipe through hot water overturning curing
  • Method for repairing overall non-excavation sewage pipe through hot water overturning curing
  • Method for repairing overall non-excavation sewage pipe through hot water overturning curing

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0033] This embodiment discloses a method for overall repair of trenchless sewage pipelines by using hot water inversion and solidification, including the following steps:

[0034] (1) Clean the pipeline between the two sewage wells 3 and 4;

[0035] (2) After the cleaning is completed, the water in the pipeline is pumped out by the pump;

[0036] (3) Use the closed-circuit television system to detect the cleaned pipeline, collect the image of the inner wall of the pipeline through the camera, find out the damage, and judge whether it meets the repair requirements, whether there is structural damage, such as collapse, if there is no structural damage Damage, such as cracks, etc. can be carried out to the next step, of course, it can also be detected manually, and the manual d...

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Abstract

The invention discloses a method for repairing an overall non-excavation sewage pipe through hot water overturning curing. The method comprises the steps that firstly, the sewage pipe is cleaned and detected, then a felt-made hose completely soaked in thermosetting resin is conveyed a to-be-repaired pipe which is thoroughly cleaned, and finally hot water is introduced for curing. By adopting a hotwater overturning curing technology, the hose is attached to the inner wall of the damaged sewage pipe, excavation is not needed during construction of the pipe, and no influence on the traffic environment of the city is caused. According to the method, the speed of the construction technology is high, the cost can be effectively lowered, and the construction period is shortened.

Description

technical field [0001] The invention relates to a construction technique for replacing sewage pipes, in particular to a method for integrally repairing non-excavating sewage pipes by using hot water inversion and solidification. Background technique [0002] The city's rain and sewage pipes are related to the quality of the city's drainage and flood control. If there is a problem with the underground rain and sewage pipes, it will lead to poor drainage. If there is a heavy rainstorm, it is likely to cause floods. Regular inspection and maintenance is very important. If the pipeline is damaged, it needs to be replaced or repaired in time, especially if the sewage pipeline is damaged, it will cause sewage leakage, groundwater pollution and river pollution. Therefore, it is necessary to replace the damaged and leaked sewage pipes in time. [0003] In the prior art, most of the replacement of sewage pipes adopts the method of direct excavation, but in the actual operation proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/162
CPCF16L55/162
Inventor 黄才福蒋浩易小萍赵丰
Owner CHINA NAT CHEM ENG NO 14 CONSTR
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