| 摘要 |
The invention relates to a flexible unbonded pipe for sub sea fluid transfer. The pipe comprises an inner sealing sheath defining a bore and a center axis. Inside the inner sealing sheath the pipe comprises a carcass. The pipe further comprises a pair of reinforcement layers consisting essentially of helically wound elongate armoring elements of fiber reinforced polymer material. The elongate armoring elements of the innermost of the pair of reinforcement layers are wound in a first winding direction with an angle α to the center axis, and the elongate armoring elements of the outermost of the pair of reinforcement layers are wound in a second winding direction with an angle β to the center axis, wherein α≧βfπ/2, α is about 65° or less. The pipe preferably comprises an anti-creep layer placed between the inner sealing sheath and the innermost of the pair of reinforcement layers. |
