METHOD OF APPLYING A PROTECTIVE COATING TO THE INSIDE SURFACE OF A PIPELINE WALL AND A DEVICE FOR CARRYING OUT THE METHOD

PCT No. PCT/SU86/00011 Sec. 371 Date Oct. 19, 1987 Sec. 102(e) Date Oct. 19, 1987 PCT Filed Feb. 20, 1986 PCT Pub. No. WO87/05088 PCT Pub. Date Aug. 27, 1987.A method of applying a protective coating to the inner surface of a pipeline includes the steps of adhering a porous flexible hose to the pipe...

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Hauptverfasser:	VIKTOR NIKOLAEVICH OLEINIK, BORIS ABRAMOVICH KISELEVSKY, IGOR ANTONOVICH CHAJUK, EVGENY GEORGIEVICH LUKIN, PETR GRIGORIEVICH SOKOL, ROMAN ALEXANDROVICH VESELOVSKY, JURY SERGEEVICH LIPATOV, VIKTOR VASILIEVICH SHISHKIN, YAROSLAV PETROVICH SUSHKOV, NIKOLAI FEDOROVICH KRYAZHEVSKIKH
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Zusammenfassung:	PCT No. PCT/SU86/00011 Sec. 371 Date Oct. 19, 1987 Sec. 102(e) Date Oct. 19, 1987 PCT Filed Feb. 20, 1986 PCT Pub. No. WO87/05088 PCT Pub. Date Aug. 27, 1987.A method of applying a protective coating to the inner surface of a pipeline includes the steps of adhering a porous flexible hose to the pipeline inner surface, an end of the hose of which is turned inside out and attached to the pipeline. The hose is moved inside the pipeline by progressively turning it inside out and pressing it to the inner surface of the pipeline by providing an excess pressure in a cavity formed by the portion of the hose turned inside out, and producing a counter-pressure before the hose as the same travels lengthwise of the pipeline. The magnitude of the counter-pressure is maintained at a predetermined level in the course of the hose travel. A piston having a passage for the hose is placed in the cavity formed by the portion of the hose turned inside out, and a binder is placed between the piston and the portion of the hose turned inside out. The binder soaks through the pores of the hose to facilitate the formation of a bond between the hose and the inner surface of the pipeline.