Armoured, flexible pipe and use of same

Details Armoured, flexible pipe and use of same Armoured, flexible pipe and use of same

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 11/10 (2006.01) F16L 11/16 (2006.01)

Patent

CA 2397079

A flexible, armoured pipe has an impermeable inner liner (3), which is surrounded by at least two reinforcement layers (5, 6, 7, 8). Between the reinforcement layers an impermeable membrane (10) is provided, which ensures that fluids do not permeate into the inner reinforcement layers (5, 6) from the pipe's outer reinforcement layers (7, 8). The outer layers are not isolated from influence from the surrounding environment. Moreover, the outer layers (traction reinforcement layers) are protected against the damaging effect of gases, which are diffused out through the flexible pipe. On the outside of the outer traction reinforcement layers (7, 8) a layer (11) can be applied, which is easily permeated by the surroundings, and which protects the traction reinforcement layer against mechanical influences. In this way it is ensured that the pressure reinforcement can absorb forces both from inner as well as outer pressure.

L'invention concerne un tuyau souple armé présentant un revêtement intérieur imperméable (3) entouré par au moins deux couches de renforcement (5, 6, 7, 8). On place une membrane imperméable (10) entre ces couches de renforcement. Cette membrane garantit la non-pénétration de fluides dans les couches de renforcement intérieures (5, 6) à partir des couches de renforcement extérieures (7, 8) du tuyau. Les couches extérieures ne sont pas isolées des influences du milieu environnant. De plus, les couches extérieures (couches de renforcement de traction) sont protégées contre les effets destructeurs des gaz diffusés à travers le tuyau souple. Sur l'extérieur des couches extérieures de renforcement de traction (7, 8), on peut appliqué une couche (11) pouvant être facilement pénétrée par le milieu extérieur et protégeant la couche de renforcement de traction contre des influences mécaniques. Grâce à ce tuyau, on garantit que le renforcement de pression est en mesure d'absorber des forces issues aussi bien de la pression extérieure que de la pression intérieure.

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