| 摘要 |
An apparatus for dissolving a gas into a fluid which may contain at least one dissolved gas. The apparatus includes a first vertically oriented tube defining a first inner space and a second vertically oriented tube of diameter larger than the first tube and concentrically oriented about the first tube. The space between the first and second tubes is referred to as the second inner space. The gas is introduced through an inlet into the second inner space. The apparatus includes an acceleration device for accelerating the flow of fluid through the second inner space. The apparatus includes a helix-shaped bubble harvester which removes fugitive (undissolved) bubbles from the fluid flow and returns them to the second inner space to increase the probability that those bubbles will be dissolved into the fluid.
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