| 摘要 |
PURPOSE: A micro-bubble generator is provided to steadily and successively generate micro-bubbles, and to nanotize the size of the micro-bubbles to maintain the micro-bubbles in liquid for a long time. CONSTITUTION: A micro-bubble generator (10) comprises: a mixed fluid producing unit (200) producing mixed fluid of gas and liquid; and a micro-bubble generating unit (300) generating micro-bubbles from the mixed fluid. The micro-bubble generating unit includes plural reactors which are directly connected to each other, and have a cross section in a tapering shape from a large diameter portion to a small diameter portion to the flowing direction of the fluid. The mixed fluid producing unit is a pump including an impeller (210), and the mixed fluid is discharged to the upper side of the mixed fluid producing unit. The diameter ratio of the large diameter portion to the small diameter portion is 1/10-1/9. The length of the small diameter portion is 0.2-2 cm. [Reference numerals] (AA) Gas; (BB) Liquid
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