CLEANING DEVICE FOR REMOVING DEPOSITS FORMED ON THE INTERNAL SURFACE OF A PIPE, AND FORMING A PROTECTIVE COATING

摘要

The invention relates to the maintenance of piping. The device forming the subject of the invention is of the type comprising a cleaning apparatus 1 which is displaced in the pipe 5 by a liquid stream containing a fluid. INHIBITOR, AND CONSISTING OF ELASTIC BLADES 4 COMING INTO CONTACT WITH THE SURFACE OF THE PIPING 5, AND IS CHARACTERIZED IN THAT THE BLADES 4 OF THE CLEANING APPARATUS 1 ARE PLACED UNDER A ANGLE OF 40 TO 50 WITH RESPECT TO THE AXIS LONGITUDINAL OF THE APPARATUS, WHILE THE ANGLE BETWEEN EACH PAIR OF MUTUALLY NEIGHBORING BLADES FORMING BETWEEN THEM IS 10 TO 25, THE CLEANING APPARATUS 1 HAVING A SUPPORT ELEMENT 11 IN CONTACT WITH THE INTERNAL SURFACE The invention can be used as well for the repair of existing piping as for the protection of pipelines under construction. / P