METHOD OF CLEANOUT OF AN INTERNAL SURFACE OF A PIPE FROM SOLID FILLINGS UP Russian patent published in 2005 - IPC

FIELD: methods of cleanout of internal surfaces of pipes from solid fillings up.

SUBSTANCE: the invention is dealt with the field of cleanout of internal surfaces of pipes from solid fillings up, in particular the pipes located in blocks of building materials (concrete, reinforced concrete and so forth), for example, pipes of a system of a stressed containment (SPZO)of reactors of power generating units. The invention ensures expansion of the functionalities. The method of cleanout of an internal surface of a pipe from solid fillings up provides for finding of the solid filling up position in a pipe and its crushing under action of the sources of detonations. Crashing of the solid filling up is conducted a part by a part alternating it with solid filling up position finding. A location determine by a means of the video observation of the internal surface of the pipe at an infrared emission, determining at that a degree of shutting of the pipe passing mouth of a flow cross-section and crushing is conducted by chipping the solid filling up using cumulative sprays formed by cumulative charges, the number of which chose depending on a degree of shutting of the pipe flow cross-section. The charges are placed a over the solid filling up at a space interval ensuring effective shaping of the cumulative sprays and their focusing in the body of the solid filling up.

EFFECT: the invention ensures expansion of functionalities.

2 dwg