| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bubble generator which can generates fine bubbles in a liquid, can improve the cleaning action by extending the dwell time of bubbles in the liquid, has a simple structure, and is prepared and operated at a low cost. SOLUTION: The bubble generator 10 is equipped with a motor 1 and a rotating cylinder 3 directly connected to the rotating shaft 2 of the motor 1. The rotating shaft 2 has an air suction port 4 in the axial direction and has such a structure that air flows to the rotating cylinder 3 communicated with the rotating shaft 2. At the end of the rotating cylinder 3 reverse to the end directly connected to the rotating shaft 2, an air diffusion pipe 5 is set so as to be rotatable together with the rotating cylinder 3. The air diffusion pipe 5 has air diffusion holes 33 for releasing bubbles into a liquid, and the air diffusion holes 33 are formed in the circumferential and axial directions of the air diffusion pipe 5. By rotating the air diffusion pipe 5 together with the rotating cylinder 3, bubbles are released from the air diffusion holes 33 into the liquid.</p> |
