Sprayed in place pipe lining apparatus and method thereof

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 13/06 (2006.01) B05B 15/04 (2006.01) F16L 1/028 (2006.01) F16L 55/1645 (2006.01) B05B 3/10 (2006.01) B05D 1/02 (2006.01)

Patent

CA 2463218

A method and apparatus for applying a liner to a pipe is disclosed. The apparatus includes a base assembly having a plurality of guide rails and a shuttle plate attached thereto. The apparatus also includes a motor module attached to an end of the base assembly. An extension arm is connected to a top surface of the shuttle plate. The extension arm has a spray head assembly attached at an opposite end thereof. The extension arm and spray head assembly will move relative to the base assembly of the apparatus. A fast cure coating will be applied via the spray head assembly to the interior surface of a pipe being rehabilitated. The spray head assembly will have an air blow off mechanism therein thus allowing for the tip of the spray head assembly to stay relatively clog free during the fast cure coating operation of the apparatus. The methodology also includes an oscillation system wherein the spray head assembly will move relative to the base assembly thus creating an over lapping pattern for the spray coating being applied to the interior surface of the pipeline. This oscillation system will allow for a more uniform coating to be applied.

La présente divulgation décrit une méthode et un appareil qui permettent d'appliquer un revêtement intérieur à un tuyau. L'appareil comprend une base pourvue de multiples glissières de guidage et une plaque navette qui y est fixée. Cet appareil comprend aussi un module de moteur fixé à une extrémité de la base. Un bras télescopique et la tête de pulvérisation se déplacent par rapport à la base de l'appareil. Un revêtement à prise rapide est appliqué par la tête de pulvérisation à la surface intérieure du tuyau reconditionné. La tête de pulvérisation est pourvue d'un mécanisme d'expulsion de l'air, ce qui permet à l'embout de la tête de pulvérisation de rester relativement désobstrué lors de l'opération de revêtement à prise rapide effectuée par l'appareil. La méthode applicable comprend aussi un dispositif oscillant par lequel la tête de pulvérisation se déplace par rapport à la base, ce qui crée des passes chevauchantes au revêtement pulvérisé, appliqué à la paroi intérieure de la conduite. Ce dispositif oscillant assure un revêtement plus uniforme.

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