Method for the production of a collecting line for detecting...

B - Operations – Transporting – 28 – B

Patent

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Details

B28B 21/70 (2006.01) F16L 57/00 (2006.01) F16L 58/10 (2006.01) F17D 5/02 (2006.01)

Patent

CA 2665814

The invention relates to a method for the production of a collecting line, and to a collecting line produced according to this method for detecting and locating an agent discharging into the environment of the collecting line in case of leakage. Such a collecting line comprises a carrier pipe (18), the wall of which is equipped with openings (16) that are sealed by means of an elastic material that is permeable for the agent. According to the invention, a hose (4) made of the permeable elastic material, the inside diameter of which is smaller than the outside diameter of the carrier pipe (18), is elastically expanded by creating a pressure difference between the interior and the exterior of the hose (4), the carrier pipe (18) being inserted into the radially expanded hose (4), and the radially expanded hose (4) being attached to the outside surface of the carrier pipe (18) by reducing the pressure difference.

L'invention concerne un procédé de fabrication d'une conduite collectrice ainsi qu'une conduite collectrice fabriquée selon ce procédé, pour détecter et localiser une substance s'échappant dans l'environnement de la conduite collectrice à l'occasion d'une fuite. Une telle conduite collectrice comprend un tuyau porteur (18) dont la paroi est pourvue d'ouvertures (16) qui sont obturées avec un matériau élastique perméable à la substance. Selon l'invention, un tuyau (4) constitué du matériau élastique perméable, dont le diamètre intérieur est inférieur au diamètre extérieur du tuyau porteur (18), est élargi de manière élastique par production d'une différence de pression entre l'espace intérieur et l'espace extérieur du tuyau (4), le tube porteur (18) est introduit dans le tuyau (4) élargi dans le sens radial, et le tuyau ainsi élargi (4) est mis en place au niveau de la surface extérieure du tuyau porteur (18) grâce à la diminution de la différence de pression.

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