METHOD OF LINING PIPE INNER SURFACE Russian patent published in 2004 - IPC

FIELD: construction engineering. SUBSTANCE: invention is used at construction and operation of pipelines to provide corrosion protection of inner surfaces. According to invention, hose with adhesive composition is driven inside pipe. End of hose is turned out and secured on pipe, and hose is pressed to inner surface of pipe. Preliminarily hose is fitted on rod with conical piston. Turned out end of hose from piston side is secured on outer wall at pipe end and then hose is closed by cover to form sealed chamber. Pressing of hose to pipe is provided by building vacuum in space between pipe, hose and isolator installed between pipe and hose. Gauge pressure is built in chamber after preliminarily fastening other end of rod and shank of isolator stationary out of pipe, and chamber is translationally moved in direction of turned out end of hose. EFFECT: improved corrosion protection of pipelines. 6 cl, 2 dwg