METHOD AND DEVICE FOR RENEWING PIPELINES

摘要

A method for renewing pipelines by inserting a flexible fibre tube, impregnated with a light-curable reaction resin, into the pipeline and curing the resin by drawing through the pipeline light-emitting diodes (2), which are arranged on the circumferential surface of a tubular or spiral carrier (1), is distinguished by the fact that the diodes (2) are arranged on the tubular or spiral carrier (1) in a number of parallel annular or helical regions (3), wherein the diodes (2) on the respectively neighbouring regions (3) are offset horizontally or circumferentially with respect to one another. An associated device for carrying out the method comprises a tubular or spiral carrier (1) with a multiplicity of UV-light-emitting diodes (2) arranged on it, which can be guided through a hollow space to be radiated. The device is distinguished by the fact that the diodes (2) are arranged on the carrier (1) in a number of parallel annular or helical circumferential regions (3), and that the neighbouring diodes (2) of two mutually adjacent regions (3) are circumferentially offset with respect to one another in an alternating manner, viewed in the longitudinal direction of the carrier (1).