Patent ID: 11873941
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. Process for capturing the accidental pressurized fluid leaks from a cracked pipeline, which uses a flexible piping according to claim 1 for creating a tight sleeve around the body of the cracked pipeline, comprising the following steps:
joining between them on a relatively short portion from the front ends (c) and from the rear ends (e) of the adjacent strips (A) that will form the piping, by joining the parts (a) with the parts (b) of the toothed zipper rails (7 and 8) and the movement on a conveniently selected distance of the sliders (9 and 10) along the rails (7 and 8) towards the limit stops (11 and 12) of the antagonistic zippers (B and C), by commands applied to the terminals (25 and 26), of the sliders (9 and 10);
assembling together by interconnecting and wrapping around a cracked pipeline (1), at a conveniently selected distance in relation to the crack, of an end (c) of the flexible strips (A) in front of which these are joined together in the plane, so that, on this pipeline there exists a number of 3 to 5 networks of electrical heating resistances (3) provided in front of the short zippers (B), thereafter, in the condition in which the inserts (18) made up of shape memory materials are curved by commands applied to the terminals (4), and the magnetic inserts (16) positioned at this end (c) of the strips (A) are fixed on the pipeline (1), by applying a command to the terminals (25) there is commanded the movement of a slider (9) along the toothed rails (7) of the short zippers (B) towards the limit stops (11), and subsequently, by commands applied to the terminals (25), of all sliders (9), these can be moved on a conveniently selected portion towards the limit stops (11);
applying voltages are applied to the terminals (4) of the networks of electrical heating resistances (3) for heat shrinking and gradual molding of the layers (2) of heat shrinking materials from the end (c) of the strips (A) and implicitly for the fluidization of the adhesive layers (15) provided on the inner side thereof, up to obtaining a complete molding and a vulcanization of this end (a) of the flexible piping onto the body of the cracked pipeline (1);
assembling together by interconnecting and wrapping around the cracked pipeline (1), at a conveniently selected distance in relation to the crack, of the other end (e) of the flexible strips (A) in front of which these are joined together in plane, so that, on this pipeline there are superimposed a number of 3 to 5 networks of electrical heating resistances (3) provided in front of the long zippers (C), thereafter, in the condition in which the inserts (19) made up of shape memory materials are curved by commands applied to the terminals (4), and the magnetic inserts (17) positioned at this end (e) of the strips (A) are fixed on the pipeline (1), by applying a command at the terminals (26) there is commanded the movement of a slider (10) along the toothed rails (8) of the long zippers (C) towards the limit stops (12), and subsequently, by commands applied to the terminals (26), of all sliders (10), these are moved on a conveniently selected portion towards the limit stops (12);
applying voltages are applied to the terminals (4) of the networks of electrical heating resistances (3) for heat shrinking and gradual molding of the layers (2) made up of heat shrinkable materials at the end (e) of the strips (A) and implicitly for the fluidization of the layers of adhesive (15) provided on the inner side thereof, up to obtaining a complete molding and a vulcanization of the second end of the flexible piping onto the body of the cracked pipe (1);
commanding in a centralized manner the movement of all robotic closing sliders (9 and 10), along the toothed rails (7 and 8) up to the limit stops (11 and 12), for total closing of all antagonistic zippers (B and C), sealing the flexible piping longitudinally onto the body of the cracked pipeline (1); and
applying commands and voltages to the terminals (4) of the networks of electrical heating resistances (3) for heat shrinking and gradual molding of the layers (2) of heat shrinkable materials of the strips (A), generating in a controlled manner by a peristaltic movement, from both ends towards the purges provided on each strip, the elimination of fluids between the body of the cracked pipeline (1) and obtaining by heat shrinking a complete molding and a vulcanization of the strips (A) by the fluidization of the adhesive layer (15) provided on the inner side thereof.