Patent ID: 9227161
Filing Date: 2016-01-05
CPC Classification: B01F

Claim Text:
1. A device for enriching a liquid stream with a gas, said device comprising: a flow-through mixer with a Venturi nozzle that has a rotationally symmetric constriction with a diameter D and through which the liquid stream can flow axially, the Venturi nozzle further including an inlet section converging in a direction of flow of the liquid stream and an outlet section diverging in said direction of flow, said inlet section and said outlet section each having an opening angle, said opening angle of the inlet section being substantially more acute than said opening angle of said outlet section, wherein said outlet section opens into a cylindrical expansion chamber, said cylindrical expansion chamber having a diameter about 8 to 12 times larger than said diameter D of said constriction; and a gas feed for laterally feeding in the gas into said constriction of said Venturi nozzle; wherein said gas feed comprises at least one gas channel that has a diameter d<0.5 D and a longitudinal axis, said gas feed laterally opening into said constriction of said Venturi nozzle so that its longitudinal axis is tangential to an imaginary cylinder surface that is coaxial with said constriction and has a diameter D′>d.