Patent ID: 7997563
Filing Date: 2011-08-16
Classification: A01K,B01F,C02F

Abstract:
1. A micro-bubble generator comprising at least a vortex breakdown nozzle including a flow constricting section and vortex breakdown section, wherein a swirling flow of liquid having a gas introduced to the center thereof is supplied to the flow constricting section to provide micro bubbles from the vortex breakdown section, further comprising a swirling-flow generating vane type nozzle connected coaxially to the vortex breakdown nozzle, the swirling-flow generating vane type nozzle being formed from a vane swirler enclosed in a cylindrical pipe, the vane swirler including a cylindrical body of which one end portion is formed streamlined, a plurality of vanes being provided on the outer circumferential surface of the cylindrical body longitudinally of the latter and having the rear portions thereof curved, a jet orifice of a gas being formed in the other end portion of the cylindrical body, and the swirling flow being formed by supplying the liquid to the inlet of the swirling-flow generating vane type nozzle.