C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
32/22.5
C23F 4/00 (2006.01) B05C 7/04 (2006.01) C23F 17/00 (2006.01)
Patent
CA 1267528
APPARATUS FOR CLEANING THE INNER SURFACE OF A PIPELINE FROM DEPOSITS AND FOR FORMING A PROTECTIVE COATINGS ABSTRACT An apparatus is used for both repair of operating pipe- lines and protection of newly built pipelines and comprises a cleaning tool which is caused to move in the interior of the pipeline under the action of a flow of fluid contain- ning a dissolved inhibitor. the cleaning tool comprises a hub on which blades are secured in two rows to engage the pipeline surface. The blades are displaced with respect to one another so that the angle between two adjacent blades is from 10 to 25° to define apertures along the periphery of the cleaning tool through which jets of fluid can flow to remove a part of deposits and to impregnate the remaining layer with the inhibitor dissolved in the fluid so as to form a protective coating. A support member carrying an impact-type alarm member is mounted on the cleaning tool so as to facilitate location of the apparatus in the pipeline and to maintain the apparatus in a desired position.
492941
Chernyai Alexandr I.
Kryazhevskikh Nikolai F.
Lukin Evgeny G.
Panchenko Valery P.
Samuliev Jury D.
Chernyai Alexandr I.
Kryazhevskikh Nikolai F.
Lukin Evgeny G.
Panchenko Valery P.
Samuliev Jury D.
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