Flexible tubular fluid-transfer conduit

Details Flexible tubular fluid-transfer conduit Flexible tubular fluid-transfer conduit

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 11/08 (2006.01)

Patent

CA 2519181

The invention relates to a flexible tubular conduit (1) consisting of a pressure sheath (2), a pressure arch comprising at least one pressure-resistant armour (3), an intermediary sheath and at least one tensile armour layer (5, 6). According to the invention, the inner annular space (30) formed between the pressure sheath (2) and the intermediary sheath (4) comprises a layer (13) which is used to drain the gases present in said space (30). The aforementioned drainage layer (13) is formed by the short-pitch winding of at least one long element comprising transverse drain holes or spaces which can be used to drain the gases between the successive turns of the winding in a direction which is essentially transverse to said turns.

Cette conduite tubulaire flexible (1) comporte une gaine de pression (2), une voûte de pression comprenant au moins une armure de résistance à la pression (3), une gaine intermédiaire et au moins une nappe d'armures de traction (5, 6) ; elle comporte dans l'espace annulaire interne (30) formé entre la gaine de pression (2) et la gaine intermédiaire (4), une couche (13) permettant le drainage des gaz présents dans cet espace annulaire (30) ; ladite couche permettant le drainage est formée par l'enroulement à pas court d'au moins un élément allongé comportant des espaces ou évidement de drainage transversaux qui permettent le drainage des gaz entre les spires successives de l'enroulement dans une direction sensiblement transversale aux dites spires.

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