METHOD OF ULTRASOUND CAVITATION TREATMENT OF FLUID MEDIA Russian patent published in 2013 - IPC B01J19/10 B01F11/02 

FIELD: process engineering.

SUBSTANCE: invention relates to cavitation treatment of fluid media and those therein specific content of water or other fluid medium exceed 65-70% of total amount. Proposed method consists in generating acoustic cavitation simultaneously in two or several different frequencies. Note here that mechanical oscillating system composed of rectangular cross-section channel consisting of sequential membranes with different frequencies of fundamental harmonic of oscillations. Standing wave sound oscillations are generated in-phase at channel opposite sides to generate quasi flat standing waves between channel walls corresponding to frequencies of membrane oscillations. Channel gap width is selected to make multiple of the wavelength quarter excited in given fluid for used frequencies. Channel wall oscillation amplitude is selected to be optimum for different fluid treatment steps to exceed acoustic cavitation threshold.

EFFECT: higher efficiency at reduced power output of ultrasound radiators.

5 dwg