Pipe replacement system and method

Abstract

The invention provides a drainage pipe replacement system and method.The drainage pipe replacement system comprises a drill rod, a girdling drill bit assembly and a jacking device, the drill rod penetrating through an old pipe pulls the girdling drill bit assembly to enable the girdling drill bit assembly to move towards the old pipe, the rotating girdling drill bit assembly crushes the old pipe while moving, and therefore the old pipe can be replaced; the jacking device moving along with the girdling drill bit assembly pushes the new pipe to move towards the girdling drill bit assembly so as to drive the new pipe to occupy the position before the old pipe moves, the crushing of the old pipe and the replacement with the new pipe are conducted at the same time, meanwhile the girdling drill bit assembly in the moving process generates pulling force on the new pipe, and the stable and efficient movement of the new pipe in the replacement process is ensured; and in addition, the annular cutting drill bit assembly in the moving process brings broken fragments of the old pipe out of the replacement position of the new pipe, the situation that replacement of the new pipe is affected by the fragments of the old pipe is avoided, the smooth replacement of the new pipe is guaranteed, and the defect that in the prior art, collapsed and damaged old pipes cannot be efficiently repaired is overcome.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a pipe replacement system and method. Background technique [0002] In the past ten years, as a large number of plastic pipes have been used in the drainage industry, although plastic pipes such as U-PVC (polyvinyl chloride) pipes, PE (polyethylene) pipes and HDPE (high-density polyethylene) pipes have resistance The advantages of acid and alkali resistance, convenient installation and transportation, and low overall cost, but plastic pipes are prone to structural defects such as deformation and rupture. Once the pipe deforms and collapses, it will take a lot of money to deal with the collapsed part, especially For small and medium-sized plastic drainage pipes, the current short pipe replacement method and pipe splitting method all use static pressure splitting technology to squeeze and pull hard, which fails to completely cut and break the original pipe and clean out the pi...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a pipe replacement system and method to solve the problem that the existing technology cannot efficiently repair the collapsed and damaged old pipes

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