F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 58/10 (2006.01) F16L 55/165 (2006.01)
Patent
CA 2348600
The invention relates to a tubing arrangement for lining pipes, to a method for producing the same and to a method for lining pipes. The invention especially relates to superpressure pipes with an internal working pressure of greater than 16 bar. In order to prevent the pipe tubing from being damaged in the case of accidents or when the pipes are placed out of service, the tubing (1) has a barrier layer (lb) which has a gas permeation of less than 1 ml/(bar d m2) for nonpolar gases and of less than 0.1 ml/(bar d m2) for polar gases. Preferably, the gas permeation ranges from 0.0001 ml/(bar d m2) to 0.01 ml/(bar d m2).
L'invention concerne un système de flexible pour garnir des conduites et un procédé permettant de le produire, ainsi qu'un procédé permettant de garnir des conduites. L'invention concerne principalement des conduites de pressions maximales où la pression intérieure de fonctionnement est supérieure à 16 bar. Afin d'éviter tout risque d'endommagement du revêtement de la conduite en cas d'avarie ou d'arrêt planifié de la conduite, le flexible (1) comporte une couche de barrage (1b) dont la perméation aux gaz est inférieure à 1 ml/(bar d m<2>) pour des gaz non polaires et inférieure à 0,1 ml/(bar d m<2>) pour des gaz polaires. La perméation aux gaz se situe avantageusement dans une plage comprise entre 0,0001 ml/(bar d m<2>) et 0,01 ml/(bar d m<2>).
Mcfadden Fincham
Schwert Siegfried
LandOfFree
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