Apparatus for and method of lining conduits

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

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F16L 55/16 (2006.01) F16L 55/162 (2006.01) F16L 55/163 (2006.01) F16L 55/1645 (2006.01) F16L 55/165 (2006.01) F16L 55/18 (2006.01) F16L 58/10 (2006.01)

Patent

CA 2497285

Apparatus (10) for lining an internal surface of a pipeline (15) or other conduit. The apparatus (10) comprises an installation head (21) which is progressively moved along the pipeline (15) for installing a flexible liner (11) onto the interior surface (13) of the pipeline (15). The flexible liner (11) comprises a tube structure (17) undergoing eversion within the pipeline (15). The tube structure (17) comprises a resin absorbent material. The installation head (21) has a contact surface (23) against which the tube structure (17) acts during eversion thereof, the contact surface (23) having means for delivery of a curable resin to the everting portion of the tube. The installation head (21) advances along the pipeline (15) under the influence of a driving force comprising (at least in part) pressure applied to the installation head (21) through the everting tube structure (17).

La présente invention concerne un appareil (10) destiné à revêtir d'un garnissage la surface interne d'une canalisation (15) ou d'une autre conduite. L'appareil de l'invention (10) comprend une tête d'installation (21) que l'on déplace progressivement le long de la canalisation (15) afin d'installer une chemise souple (11) sur la surface intérieure (13) de la canalisation (15). La chemise souple (11) comprend une structure tubulaire (17) qui est soumise à une éversion à l'intérieur de la canalisation (15). La structure tubulaire (17) comprend un matériau absorbant la résine. La tête d'installation (21) possède une surface de contact (23) contre laquelle la structure tubulaire (17) agit pendant l'éversion, la surface de contact (23) comprenant des moyens permettant de distribuer une résine durcissable à la partie en éversion de la structure tubulaire. La tête d'installation (21) avance le long de la canalisation (15) sous l'influence d'une force d'entraînement comprenant (au moins en partie) une pression appliquée sur la tête d'installation (21) à travers la structure tubulaire en éversion (17).

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