Method for thermally insulating a pipeline.

摘要

Method for thermally insulating a pipeline (33) along at least part of its length, the method comprising manufacturing a protective sleeve (42) around the pipeline (33) at a selected radial distance therefrom in a die (4) and inducing both the sleeve (42) and the pipeline (33) to move axially at substantially the same speed relative to the die (4) while maintaining an annular space (51) between the sleeve (42) and the pipeline (33). Components for forming a thermal insulation layer are progressively injected in the annular space (51) between the sleeve (42) and the pipeline (33).