F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/38 (2006.01) B08B 9/04 (2006.01) F16L 55/46 (2006.01)
Patent
CA 2581881
The invention relates to an installation and method for driving a submarine pipeline scraper (22), whereby one of the ends (16) of said pipeline is equipped with a launch device (12) and the other end (18) is equipped with a receiving device. According to the invention, the scraper (22), which defines an upstream chamber (26) and a downstream chamber (28), can be launched inside the pipeline (10) from the launch device (12) in the direction of the receiving device (14), allowing water to enter through the launch device (12) in order to subject the upstream chamber (26) to a hydrostatic pressure. The receiving device (14) is identical to the launch device (12), such that water can enter through said device (14) in order to balance the pressure of the two chambers, and is designed to enable a fluid to be injected into the downstream chamber (28).
L'invention concerne une installation et une méthode d'entraînement d'un racleur (22) de conduite sous-marine, ladite conduite étant équipée à l'une de ses extrémités (16), d'un dispositif de lancement (12) et à l'autre (18) d'un dispositif de réception, ledit racleur (22) délimitant une chambre amont (26) et une chambre aval (28) et étant susceptible d'être lancé à l'intérieur de ladite conduite (10) depuis ledit dispositif de lancement (12) vers ledit dispositif de réception (14), en autorisant de l'eau à entrer à travers ledit dispositif de lancement (12) pour porter ladite chambre amont (26) à une pression hydrostatique; ledit dispositif de réception (14) étant identique au dispositif de lancement (12) pour autoriser de l'eau à entrer à travers ledit dispositif de réception (14) de façon à équilibrer la pression des deux chambres et, il est adapté à l'injection d'un fluide dans ladite chambre aval (28).
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Technip France
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