NANO-SIZED BUBBLE GENERATING DEVICE CAPABLE OF ARBITRARILY ADJUSTING BUBBLE DIAMETER DISTRIBUTION

摘要

[Problem] To uniformize diameters of fine bubbles generated in a fine pore type bubble generating device. [Solution] In a fine pore type bubble generating device that generates bubbles by pushing gas through fine pores into water, fine pores are formed using a nano-porous metal 22, and the fine bubbles are controlled so as to have arbitrarily defined sizes by changing the pore diameters of the fine pores. The strength of the structure is enhanced by stacking porous materials 24, 26, 28 in a single layer or multiple layers, the porous materials 24, 26, 28 having pore diameters greater than the fine pores of the nano-porous metal, such that the nano-porous metal 22 can be made resistant to gas pressure.