DISPERSION IN PIPE OF GAS INTO LIQUID

摘要

PURPOSE: To provide a method and apparatus for generating fine bubble for dispersion of gas in liquid. CONSTITUTION: A conical in-line mixer 2 inserted into pipe 1 by support rings 8 and 9 comprises a cone 3 having enlarged section 4 and a cone 5 having enlarged section 6 between which the enlarged intermediate portion 7 is formed. Annular opening 11 is formed between the portion 7 and the wall of pipe 1. Gas/liquid mixture 10 is accelerated to be supersonic as it passes through the annular opening 11 and decelerated to be subsonic as it passes through the cone 5. Fine gas bubbles are generate by shearing gas bubbles caused by sonic shock waves. Flow portion reaches to supersonic more than venturi type and is effective to make fine.