| 摘要 |
The invention relates to a thermal insulation device (1) for at least one underwater pipe (4) comprising a thermal insulating coating (3) covering said pipe(s). Said coating is covered with a sealed protective jacket (2) said jacket being tubular in shape and having a longitudinal axis of symmetry (ZZ'), said insulating coating (3) being made of a migration-type material, and said jacket (2) being made of a flexible material or semi-rigid material which can remain in contact with the outer surface of the insulating coating (3) when it deforms; the device is characterized in that it comprises at least two sealed transversal partitions (5), each of said partitions being made of a closed rigid structure through which the pipe(s) pass.and being connected on the periphery thereof to the jacket, in addition to comprising at least one centering jig (6), preferably a plurality of centering jigs (6) disposed between the two said successive sealed partitions (5) along the longitudinal axis (ZZ'), each centering jig (6) consisting of a rigid part which is connected to the pipe (s) and which is shaped in such a way that it enables the jacket (2) to be displaced in a limited manner i.e. contracted and expanded in front of the centering jig (6).
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