| 摘要 |
The purpose of the present invention is to provide a nanobubble-producing device with which it is possible to obtain high-concentration nanobubbles that are minute and have a uniform diameter. The nanobubble-producing device according to the present invention is provided with: a liquid vat provided with a bubble-containing-liquid introduction hole in the top portion thereof and a bubble-containing-liquid exit hole in the bottom portion thereof; a microbubble-containing-liquid supply portion for supplying a microbubble-containing liquid that contains microbubbles to the bubble-containing-liquid introduction hole of the liquid vat; an ultrasonic collapse unit for radiating ultrasonic waves to the inside of the liquid vat in order to form an ultrasonic collapse field in which the collapsing of microbubbles by ultrasonic waves is concentrated and nanobubbles are generated at a location where the microbubble-containing liquid supplied into the liquid vat through the bubble-containing-liquid introduction hole flows downward; and a nanobubble-containing-liquid exit portion where the nanobubble-containing liquid that contains nanobubbles generated by the ultrasonic collapse unit is taken out of the liquid vat through the bubble-containing-liquid exit hole. |
