SEGMENT FOR RECOVERING PIPE AND METHOD OF PIPE RECOVERY Russian patent published in 2017 - IPC B23P6/00 F16L1/00 F16L55/162 

FIELD: technological processes.

SUBSTANCE: segment for recovering pipe used for repairing the inner surface of the active pipeline comprises an internal surface plate constituting the internal peripheral surface, side plates and end plates positioned vertically on the peripheral edge of the internal surface plate. The internal surface plate, side plates and end plate are made integrally of plastic. The segment is made connectable to another segment via connecting elements in the circumferential direction and along the pipe to form a segmental recovering pipe, which is designed to be installed inside a repaired pipeline. In the end plates a hole is made, providing the insertion of the connecting element when the segments are joined in the circumferential direction, and a hole is made for the passage of the filling material therethrough, intended to form the lining on the inner surface of the repaired pipeline and injected into the space between the pipeline and the recovering pipe.

EFFECT: invention allows to create a segment for recovering pipe which allows a smooth, uniform and rapid injection of the filling material, intended to form the lining on the inner surface of the repaired pipeline and injected into the space between the pipeline and the recovering pipe.

10 cl, 9 dwg