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
CN110671576AInactive Publication Date: 2020-01-10CHINA NAT CHEM ENG NO 14 CONSTR
12 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT CHEM ENG NO 14 CONSTR
Publication Date
2020-01-10
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More