Title:
UNMANNED SHIPBORNE PIPELINE MAINTENANCE UNIT
Document Type and Number:
WIPO Patent Application WO/2018/000542
Kind Code:
A1
Abstract:
An unmanned shipborne pipeline maintenance unit, comprising: a plastic or metal guide pipe (12) axially split into two axial edges (11, 13); the guide pipe (12) is initially formed by flat-plate material, the flat-plate material is then cut into an appropriate size, and then a longitudinal edge of the flat-plate material is inclined to form an inclined plane along the circumferential range of a pipeline or is gradually thinned; one thinned part (15) is formed by removing the material forming an outer surface of the guide pipe (12) from the surface, and the other gradually-thinned part (17) is formed by removing material from an inner surface of the pipeline (12); the gradually-thinned parts are arranged in parallel; the thicknesses of the gradually-thinned parts arranged in parallel are configured to correspond to the thickness of a material plate used for forming the guide pipe (12); a flat plate used for forming the guide pipe (12) is heated in a furnace to the softening point thereof so as to form the guide pipe around a mandrel, and thus the diameter of the guide pipe is close to that of a pipeline to be maintained; the guide pipe (12) is fully opened during the mounting process of a maintenance unit (10) so as to seal part of the pipeline.
Inventors:
YANG YUE (CN)
Application Number:
PCT/CN2016/095108
Publication Date:
January 04, 2018
Filing Date:
August 14, 2016
Export Citation:
Assignee:
YANG YUE (CN)
International Classes:
F16L55/162; F16L55/163
Foreign References:
| US5186215A | 1993-02-16 |
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