| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nanobubble producing apparatus capable of easily producing nanobubbles without using a large-scale apparatus. <P>SOLUTION: The nanobubble producing apparatus includes: a microbubble producing section 1 that includes piping 100 for liquid to flow through, a branch pipe 103 diverging a part of liquid at a branch part 104 upstream in the piping 100 and returning the part of the liquid again at a confluence part 105 downstream in the piping 100, and a gas-liquid mixing part provided at an intermediate part of the branch pipe 103 to mix gas with the part of the liquid, and produces microbubbles in a range of 4-100 μm in the liquid; and a nanobubble producing section 2 that includes a nanobubble producing part body 200 connected to the downstream end side of the piping 100, perforated plates provided in the body 200, and collision plates provided downstream of the perforated plates, in proximity to the perforated plates, and produces nanobubbles in a range of 100 nm or less in the liquid. A distance from the confluence part 105 to the perforated plates is in a range of 5D-6D based on the inner diameter D of the piping 100. <P>COPYRIGHT: (C)2013,JPO&INPIT |
