FIELD: process engineering.
SUBSTANCE: lining sleeve impregnated with thermosetting binder is fed via access well to pipeline under repair. Said sleeve is fed inside pipeline to exit well at pressing it to pipe inner surface by fluid column pressure. After fitting the lining sleeve inside, heat carrier as a hot liquid is forced therein and held for time required for binder hardening. Sleeve displacement inside pipeline and holding said lining sleeve filled with heat carrier are conducted at constant fluid column pressure. Preset constant height of said column varies from 3 m to 11 m above ground surface. To prevent spontaneous feed of lining sleeve into pipeline before preset fluid column pressure is reached said sleeve is retained by the rope.
EFFECT: higher quality of applied coating, ruled out re-ingress of water into pipeline.
6 cl, 3 dwg
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