Device for heating and thermally insulating at least one...

Details Device for heating and thermally insulating at least one... Device for heating and thermally insulating at least one...

2008-05-06

2008-05-06

Beach, Thomas A. (Department: 3671)

Wells

Processes

Heating, cooling or insulating

C166S367000, C166S272100, C166S061000

Reexamination Certificate

active

07367398

ABSTRACT:
Apparatus for heating and lagging at least one main undersea pipe for conveying a flow of hot effluent. The apparatus includes a covering of thermally insulating material surrounding the main pipe(s), and covered by a leaktight outer protective casing and an internal chamber coaxial with the outer casing. The insulating covering surrounds the internal chamber in an annular space between the outer casing and the internal chamber. The main pipe is contained inside an internal chamber that is preferably cylindrical in shape. A heat-transfer fluid having a maintained temperature surrounds the main pipe contained inside the internal chamber and is circulated inside the internal chamber.

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