A flip-type repair method for normal temperature curing lining

Abstract

The invention discloses a turnover type repair method for a normal-temperature curing lining and a turnover device for the turnover type repair method. The turnover type repair method is completed by virtue of mutual cooperation of a turnover machine, a leveling machine and an air compressor room. The turnover machine is provided with a charge hole, a discharge hole and a leading-in barrel. The repair method comprises the following steps: dredging and pre-processing a repaired pipeline; mixing and naturally cooling resin, and filling the resin into a prefabricated hose; winding a lining resin hose by virtue of cooperation of the leveling machine and the turnover machine; pressurizing and turning over the lining resin hose by virtue of cooperation of the turnover machine and an air compressor; pressurizing and laminating the hose by virtue of the air compressor, and carrying out stable-pressure curing on the lining hose; and carrying out end part processing. According to the turnover type repair method for the normal-temperature curing lining and the turnover device for the turnover type repair method disclosed by the invention, the normal-temperature lining hose is pressurized and cured at the normal temperature by sealing the leading-in barrel, so that process flow of site construction is simplified, and pipeline repair construction efficiency is improved; and turnover-process repair construction can be carried out on a narrow and small site without a built rotating tower, so that traffic pressure is reduced, and the range of application of a non-excavation lining technology is expanded.

Description

technical field [0001] The invention belongs to the field of municipal pipeline engineering, and in particular relates to an overturning repair method and an overturning device for a normal-temperature curing inner lining. Background technique [0002] In the past, when the damage of underground pipelines such as municipal drainage underground pipelines, agricultural water underground pipelines, industrial water underground pipelines, tap water underground pipelines, gas underground pipelines and other underground pipelines was repaired without excavation, a flip tower was set on the ground and water was used to repair the damage. The underground pipeline is repaired by turning the resin-lined hose inside or lined impregnated with heat-curing resin into the old pipeline by gravity. That is, the inner lining layer impregnated with thermosetting resin is turned over to form the outer layer of the hose, and placed inside the old pipe. After the resin hose is expanded with water...

AI Technical Summary

Problems solved by technology

However, by setting up an overturning tower on the ground, using the gravity of water to overturn the resin-lined hose and put it into the old pipeline, when repairing underground pipelines, there are usually certain requirements for the site where the lining hose material is overturned, such as implementing The upper part of the inspection well for turning over requires a large enough height space, and the upper part of the inspection well can erect a turning tower, etc., causing certain limitations to the turning construction

Moreover, with the increase of the diameter of the material, the difficulty of on-site flipping construction increases, and the preparation work takes a long time, which even causes accidents that the resin hose impregnated with thermosetting resin will be cured before the flipping is completed.

[0003] In view of the fact that the upper part of the inspection well for overturning does not have enough height space, and the overturning tower cannot be erected on the upper part of the inspection well, there are certain limitations on the overturning construction.

Moreover, with the increase of the diameter of the material, the difficulty of on-site flipping construction increases, and the preparation work takes a long time, which even causes accidents that the resin hose impregnated with thermosetting resin will be cured before the flipping is completed.

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