DEVICE FOR IN-SITU RESTORATION OF INACTIVE PIPELINES OR CHANNELS AND METHOD FOR RESTORATION WITH THE HELP OF THIS DEVICE.

摘要

The subject of the present invention is a device for the repair on-site of inaccessible conduits or ducts and a method for restoring using the same. Repairing device characterised in that it essentially consists of a set of at least four inflatable cylindrical elements (1, 2, 3, 4) of short length, joined together by spacers (5) articulated (5) by means of universal joints and joined by means for supplying inflation fluid and clogging product (7') under pressure, as well as by traction and/or retraction means, respectively to injection and actuation devices arranged at the surface and provided with corresponding control devices, the said set of elements (1, 2, 3, 4) making it possible to define a permanent chamber (10) for the injection of clogging product (7') under pressure into the conduit or the duct (11), allowing their continuous and complete repair as the said assembly progresses, and this also, if necessary, being at the level of misalignments (12), internal projections (13), openings of secondary ducts (14) or elbows (12'), whilst keeping the injection chamber (10) full of clogging product (7'). IMAGE