Process and apparatus for repairing pipes

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

Patent

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Details

F16L 55/18 (2006.01) F16L 55/1645 (2006.01)

Patent

CA 2461301

A two-stage process for repairing pipes at elevated temperatures and at elevated pressure. The process comprises the steps of preparing and displacing a hose assembly within the pipeline needing repair. A pressure medium is then introduced into the hose assembly raising the first temperature to initiate and facilitate the cross-linking reaction, and then raising the temperature to a second temperature range and pressure to cure or harden the resin. Novel manifolds and access tubes which allow the practicing the process safely are also provided.

Un procédé à deux étapes permettant de réparer des tuyaux à des températures élevées et à une pression élevée. Le procédé comprend les étapes suivantes : préparer et déplacer un ensemble de tuyau souple dans le pipeline nécessitant une réparation. Un support de pression est ensuite introduit dans l'ensemble de tuyau souple élevant la première température pour commencer et faciliter la réaction de réticulation et, ensuite, élevant la température à une deuxième gamme de température et à une pression pour le traitement ou le durcissement de la résine. La présente porte aussi sur de nouveaux conduits et tubes d'accès qui permettront l'exécution sécuritaire du procédé.

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