FINE BUBBLE LIQUID GENERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To continuously generate a fine bubble liquid containing fine bubbles at high density.SOLUTION: A fine bubble liquid generation device 1 includes: a generation part 11 having a mixing nozzle 31 for introducing gas and a pressurized liquid, and a fine bubble generation nozzle 2 for discharging the liquid containing fine bubbles of the introduced gas; a circulation passage 12 which returns the liquid discharged from the fine bubble generation nozzle 2 to the mixing nozzle 31 in an isolated state from outside air; an extraction part 13 which extracts a part of the liquid circulating in the generation part 11 and the circulation passage 12 as a fine bubble liquid; and a replenishment part 14 which maintains an amount of the liquid circulating in the generation part 11 and the circulation passage 12 by replenishing the liquid to the circulation passage 12. Thereby, the fine bubble liquid containing the fine bubbles at high density can be continuously generated.