A method for repairing a tubular conduit.

摘要

A method for repairing a tubular conduit (1) by lining the inner wall of the tubular conduit with a tubular liner bag (2) impregnated with thermosetting liquid resin, comprising the steps of; (a) everting the tubular liner bag in the tubular conduit; (b) closing the open end of the tubular liner bag with a stationary lid (3b) thereby forming a closed space (S) inside the tubular liner bag and the lid; (c) inserting a heat-resistive hose (7) into the closed space through the lid; (d) inflating the tubular liner bag by charging a pressurized fluid into the closed space; and (e) supplying hot water via the heat-resistive hose to thereby heat and harden the liner bag; wherein the heat-resistive hose is slidably inserted through the lid, and is connected to the lid via a flexible inflatable sealing device such that when the pressurized fluid is charged into the closed space the sealing device is pressed to inflate externally from the lid thereby forcing the heat-resistive hose to slide externally. <IMAGE>