| 摘要 |
PROBLEM TO BE SOLVED: To obtain a gas-water mixing device having a simple structure, which is capable of forming a gas-water mixed liquid such as ozone water as a mixed liquid containing ultrafine particulate bubbles without causing separation of a gas present in a desired ratio from water. SOLUTION: The gas-water mixing device A has an introducing part for introducing pressure water and gas into a hollow easing 10, a first rotary cylinder 14 provided at the inside, which is a hollow cylindrical form and a second rotary cylinder 18 which supports the first rotary cylinder 14. The gas-water mixed liquid is produced by allowing the pressure water to flow in the tangential direction through an introducing hole 16 from a pressure chamber K provided at the outer peripheral part of the first rotary cylinder 14, and then introducing the gas through an introducing hole 15 provided at the end wall of the rotary cylinder 14 by the first rotary flow to mix ultrafine particulate bubbles into the rotary flow, passing the mixture through a suction resistance plate 19 as mixed liquid in the bubble containing liquid state free from separation of gas and discharging the mixed liquid from a discharging port 21.
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