Underground pipeline inner wall hot melting repair complete equipment and method

Abstract

The invention discloses underground pipeline inner wall hot melting repair complete equipment and method. The complete equipment comprises plugging devices used for plugging the two ends of a pipeline repair interval, a cleaning device used for cleaning the pipeline repair interval, a conveying device used for conveying plastic particles and a melt extrusion forming device; and the discharging end of the conveying device is communicated with the feeding end of the melt extrusion forming device. By the adoption of the complete equipment and method, the pipeline repairing quality is improved, the pipeline repairing cost is reduced, and the construction amount of pipeline repairing is reduced.

Description

technical field [0001] The invention relates to the technical field of underground pipeline repair, in particular to a complete set of equipment and method for hot-melt repair of the inner wall of an underground pipeline. Background technique [0002] In the underground pipeline repair project, especially the pipeline repair project used in urban rainwater and sewage pipes, the commonly used technologies include flip lining repair method, UV curing pipeline repair method, intubation repair method, expansion pipe repair method, etc. Among them, the overturning lining repair method and the ultraviolet curing repair method are the mainstream processes at present. Both of these two methods need to insert the prepared soft inner liner into the pipeline to be repaired, and then use hot water and ultraviolet light to heat the pipeline respectively. Curing, so that the lining pipe hardens and closely combines with the inner wall of the pipeline to be repaired, so as to achieve the p...

AI Technical Summary

Problems solved by technology

These methods all have some shortcomings, such as the inner lining layer and the inner wall of the original pipeline are not tightly bonded, the bonding strength is low, the inner lining layer is easy to break away from the collapse and affect the quality of pipeline repair; the lining pipe needs to be pre-processed, and different diameters and sections The shape of the pipe requires a corresponding lined hose, which is more expensive to manufacture and less flexible

In addition, it is necessary to excavate a large auxiliary tunnel at the pipe end, which requires a large amount of construction and has a great impact on traffic

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