Pipeline trenchless laser cutting updating device and updating method thereof

The trenchless laser cutting pipeline replacement device solves the problems of tool wear and replacement difficulties by using laser cutting and expansion jacking mechanism, achieving efficient pipeline replacement, reducing traffic impact, and is environmentally friendly.

CN117961321BActive Publication Date: 2026-07-24CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD +1
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Patent Information

Application Number
CN202410306305.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2026-07-24
Estimated Expiration
2044-03-18

AI Technical Summary

Technical Problem

In the existing technology, the cutting tools of pipe cutting devices require large-scale enclosure during construction, which affects traffic and causes serious wear and tear on the cutting tools, making replacement difficult.

Method used

The pipeline trenchless laser cutting and replacement device includes a traction system installed in the second working shaft and a laser cutting mechanism and an expansion jacking mechanism starting from the first working shaft. Combined with the traction device, the old pipeline is cut and the new pipeline is laid through laser cutting and expansion jacking.

Benefits of technology

It solves the problems of severe tool wear and difficult replacement, improves construction efficiency, reduces the impact on traffic, realizes in-situ renewal and capacity expansion of flexible pipelines, and is environmentally friendly.

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Abstract

The application discloses a pipeline trenchless laser cutting updating device and an updating method thereof, and solves the problems of easy damage of a blade and great difficulty in cutter replacement in a blade type pipeline cutting device in the prior art. The pipeline trenchless laser cutting updating device comprises a traction system arranged in a second working well, and a laser cutting mechanism and an expansion jacking mechanism which are connected in front and back and start from a first working well; a towing device for towing a new pipeline is arranged at the rear of the expansion jacking mechanism; under the action of the traction system, the laser cutting mechanism, the expansion jacking mechanism and the towing device move in an old pipeline and perform laser cutting of the old pipeline, expansion of the old pipeline and laying of the new pipeline. The application can effectively cut a flexible pipeline, lay a new expanded pipeline, has the characteristics of not affecting ground traffic, small ground disturbance, environmental friendliness and the like, and can realize in-situ updating and expansion updating of the flexible pipeline.
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