Pipe tensioner machine

F - Mech Eng,Light,Heat,Weapons – 16 – L

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F16L 1/23 (2006.01)

Patent

CA 2599135

A pipe tensioner machine for offshore pipelaying operations comprises adjustable squeeze elements for the transfer of tension to the pipe string. Four tension banks (14, 16, 18, 20) are provided in an angle of substantially 90~ to each other mounted inside a framework (12). The tension banks are movable along guides. The tension banks (14, 16, 18, 20) comprise revolving tracks (22) carrying traction pads (24) transmitting the squeeze force to the pipe (26). The lower tension banks (18, 20) are longer than the upper tension banks (14, 16).

La présente invention concerne une machine à tendre les conduites pour les opérations de pose de conduites en mer comprenant des éléments de serrage ajustables pour transmettre la tension à la colonne de conduites. Quatre bancs de tensionnage (14, 16, 18, 20) sont prévus avec un angle sensiblement de 90° les uns par rapport aux autres et montés à l'intérieur d'un châssis (12). Les bancs de tensionnage peuvent être déplacés le long de guides. Les bancs de tensionnage (14, 16, 18, 20) comprennent des pistes d'inversion (22) supportant des coussins de traction (24) transmettant la force de serrage à la conduite (26). Les bancs de tensionnage (18, 20) inférieurs sont plus longs que les bancs de tensionnage (14, 16) supérieurs.

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