Resin impregnation tower for cured in place liner

Details Resin impregnation tower for cured in place liner Resin impregnation tower for cured in place liner

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 55/165 (2006.01)

Patent

CA 2544973

A non-pressurized resin impregnation tower (54) for continuously impregnating the resin impregnable layer of a tubular cured in place liner (55) is provided. The tower (54) is at a height to provide sufficient resin pressure head to impregnate the resin impregnable layer fully. The resin impregnated tube (55) is fed into the top of the tower (54), drawn down about a roller at the bottom, removed from the top of the tower (54) and then wrapped with an outer impermeable coating. The impregnated liner (55) is suitable for pull-in- and-inflate method of installation or may be everted. For liners formed with an inner impermeable layer, the Linner is suitable for curing with steam.

Tour d'imprégnation de résine non pressurisée (54) servant à imprégner en continu une couche de doublure tubulaire (55) durcie sur place. Cette tour (54) présente une hauteur permettant d'obtenir une pression suffisante de résine pour imprégner totalement la couche. Le tube (55) imprégné de résine est introduit au sommet de la tour (54), enroulé autour d'un rouleau au fond, retiré du sommet de la tour (54), puis enveloppé avec un revêtement extérieur imperméable. Cette doublure imprégnée (55) peut être utilisée avec un procédé d'installation du type pause et gonflage ou peut être inversée. En ce qui concerne des doublures possédant une couche intérieure imperméable, ces doublures peuvent être durcies à la vapeur.

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