FIELD: construction.
SUBSTANCE: surface is treated with pressurised liquid jets from a device (cavitation inducer). The said jets create active volume around the surface represented with a cavity. The cavity volume is expanded by controlling pressure in jets and smooth changing distance from cavitation inducer outlet to the treated surface. The distance is fixed as an operating position of cavitation inducer when maximum hydrodynamic pressure pulse is achieved in jet cavity. As disclosed by the invention, the construction of a device includes housing, inlet convergent pipe, and expansion chamber and outlet diffuser. It is implemented so that expansion chamber volume where cavitation is induced can be controlled.
EFFECT: improved cleaning due to expanded cavity in hydrodynamic jet and appearance of resonance in sediment material structure on treated surface.
6 cl, 7 dwg
