| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microbubble-generating device which is simple in configuration, portable, and generates microbubbles in a liquid at high effciecny for its size. <P>SOLUTION: The microbubble-generating device 1 includes a microbubble-generating unit 10 which introduces liquid and gas, and forms gas microbubbles in the liquid, and then discharges them. The microbubble-generating unit 10 has a gas-liquid generating tank 11 and an external shell tank 12, and the space between the tanks is constituted as a liquid flow channel. A plurality of liquid-supply openings 17 are provided at the upper part of the flow channel, and a liquid is supplied from the liquid-supply openings 17 into the gas-liquid generating tank 11 through the flow channel. A swirling flow C is generated by the supplied liquid in the gas-liquid generating tank 11, and consequently a negative-pressure cavity part V is generated around the axis S of a cylindrical tube. Gas is externally supplied from a gas-supply part 13 by the action of the negative-pressure cavity part V or by forcibly supplying more gas. The gas microbubbles are formed by the swirling flow of the liquid and discharged as the gas-liquid from a gas-liquid discharging opening 16. <P>COPYRIGHT: (C)2012,JPO&INPIT |
