A trenchless pipe rehabilitation system and method

By combining an air compressor, a steam generator, and a turning mechanism, along with the design of an isolation cover and guide rollers, a highly efficient pipeline repair system with no water source and a small footprint is achieved. This solves the problems of high water demand, construction limitations, and time-consuming resin curing associated with traditional water-turning devices, thus improving the efficiency and quality of pipeline repair.

CN122359604APending Publication Date: 2026-07-10WANXIANG PIPELINE (SICHUAN) ENGINEERING TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WANXIANG PIPELINE (SICHUAN) ENGINEERING TECHNOLOGY CO LTD
Filing Date
2026-03-24
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional water-cooled pipe repair devices require a sufficient water source, occupy a large area, have limited construction capacity, and take a long time to cure resin, resulting in low efficiency in pipe repair.

Method used

The system employs an air compressor, a steam generator, and a tilting mechanism. It utilizes a repair method involving opening and closing the tilting cylinder, rolling and pressing the hose with rollers, sealing it, and then passing compressed air to tilt the pipe and steam to cure it. Combined with an isolation cover separating the inner cavity of the cylinder and a guide roller to guide the flow, it achieves waterless, compact, and highly efficient repair.

Benefits of technology

No water source is required, the equipment occupies a small area, it is compatible with different pipe diameters, and the pipe flipping and curing process is highly efficient, improving repair efficiency and ease of operation, and ensuring repair quality and construction compatibility.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122359604A_ABST
    Figure CN122359604A_ABST
Patent Text Reader

Abstract

The application relates to the technical field of pipeline repair, and provides a pipeline trenchless repair system and a repair method, which comprise an air compressor, a steam generator and a turnover mechanism, the air compressor and the steam generator are connected with the turnover mechanism through pipelines, the turnover mechanism comprises a cylinder body and a turnover cylinder, a roller shaft for winding and unwinding a hose is coaxially rotationally connected in the cylinder body, an inlet and an outlet are arranged in the side wall of the cylinder body, one end of the turnover cylinder is hinged to the cylinder body, the other end of the turnover cylinder is detachably connected with a turnover flange, one end of the hose is connected with the roller shaft, the other end of the hose is connected with the turnover flange, and a pipe pressing assembly for rolling the hose is adjustably connected in the cylinder body at the inlet and the outlet. The hose is rolled by opening and closing the turnover cylinder, rolling and winding the hose, and being sealed and turned by compressed air, and the hose is solidified by steam, so that the pipeline repair system does not need a water source, the equipment occupies a small area, is suitable for repairing pipelines with different diameters, makes the hose conveying smooth and the resin distribution uniform, and is efficient in the processes of turning the hose and solidifying the hose, and the pipeline repair operation efficiency and operation convenience are improved.
Need to check novelty before this filing date? Find Prior Art