UNDERWATER COMPLEX FOR REPAIR OF UNDERWATER PIPELINES Russian patent published in 2013 - IPC E02D23/00 

FIELD: construction.

SUBSTANCE: underwater complex for repair of underwater pipelines comprises a caisson, having a chamber in the form of a box with an open bottom and with two holes of round shape in two opposite side walls for installation on the pipeline and sealing on it at the edges of the specified holes, a mounting frame designed for placement of the caisson on it, connected with facilities of its fixation relative to the soil and having tube grips arranged at both sides of the caisson, and grips are arranged as capable of fixation on the pipeline. The mounting frame is made of four pairwise connected pipes, pairs of pipes are arranged at opposite sides of the caisson along its solid side walls, and pipes of each pair are connected by their ends with tube grips. On two opposite side walls of the caisson chamber there are arc cuts made and folds installed so that whenever folds are closed on each of the specified side walls there is the specified hole of the round shape, edges of each hole in the form of semicircumference is formed by the upper part of the arc cut, and edges of the hole in the form of a quarter of the circumference are arranged on each of the folds, at the same time at edges of each hole there are sealing facilities made as capable of adjacency to the outer surface of the pipeline with formation of a wet bell chamber.

EFFECT: development of a reliable dismountable structure providing for repair of an underwater pipeline by method of replacement of a defect section of a pipeline, safe and comfortable work of divers.

11 cl, 4 dwg