Pipeline maintaining device and maintaining method and sewer pipeline maintaining car

Abstract

The invention relates to a pipeline maintaining device and maintaining method and a sewer pipeline maintaining car. The pipeline maintaining device comprises a moving component (7), a blocking component and a grouting component, wherein the moving component (7) is used for moving to a to-be-repaired position of a pipeline in the pipeline; the blocking component is arranged on the moving component(7) and used for enabling the position, wherein the to-be-repaired position is located, in the pipeline to form a sealed region (O) through state variation; and the grouting component is arranged on the moving component (7), used for filling the sealed region (O) with grouting slurry and guiding the grouting slurry to flow to the to-be-repaired position so as to realize pipeline repair. Accordingto the pipeline maintaining device, the damaged pipeline can be rapidly repaired through a chemical grouting method, the repair efficiency of the sewer pipeline can be greatly increased, and problems,such as soil erosion, surface subsidence, osmosis and inflow, caused by pipeline damage, are effectively solved; and besides, remote operation also can be realized more safely and conveniently, and the repair mechanization of the pipeline is realized.

Description

technical field [0001] The invention relates to the technical field of sanitation machinery, in particular to a pipeline maintenance device and maintenance method, and a sewer pipeline maintenance vehicle. Background technique [0002] In recent years, the occurrence of ground subsidence and sinkholes in urban streets is increasing, and many times the ground subsidence is caused by the leakage of underground sewage pipes and rainwater pipes. At present, there are mainly several methods for repairing pipelines in China, such as pipe replacement repair, U-shaped HDPE pipe lining repair method and in-situ curing method. [0003] Among them, the pipeline company must stop production during the pipe replacement and repair work, which will definitely have a certain impact on downstream users. At the same time, there are certain safety and environmental risks in the pipe replacement operation, which requires a lot of manpower and material resources, takes a long time and costs a l...

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Problems solved by technology

[0003] Among them, the pipeline company must stop production during the pipe replacement and repair work, which will definitely have a certain impact on downstream users

At the same time, there are certain safety and environmental risks in the pipe replacement operation, which requires a lot of manpower and material resources, takes a long time and costs a lot

[0004] U-shaped HDPE pipe lining repair method is currently widely used in China, but it cannot be constructed under large elbows, pipe deformation, and non-circular cross-sections, and excavation must be carried out, which has certain limitations.

[0005] In-situ curing method (CIPP) is suitable for pipe diameters between 100-1500mm, and the pipe diameter range is small, and the construction process of this technology is relatively complicated, requiring special construction equipment, and requires high technical level and construction experience of workers. , the curing time of the material is about 8 hours, which is a long time, and the lining of the pipeline cannot prevent the penetration of the pipeline; at the same time, there may be styrene along with the polyester resin, which affects the construction environment and the safety and health of construction personnel

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