Aeration diffuser

Details Aeration diffuser Aeration diffuser

B - Operations, Transporting

01

F

B01F 3/04 (2006.01) C02F 3/20 (2006.01)

Patent

CA 2274042

A diffuser (1) for mixing and oxygenating water or other liquid with an airstream employs a self supporting micro-porous tubular membrane (11), arranged in a spiral or grid configuration, with openings which are at least equal to the diameter of the membrane (11), extending both horizontally and vertically between the circuits or grids of the diffuser (1). Gas, when forced through the tubular membrane (11), forms fine bubbles which agitate, oxy-genate and entrain the surrounding liquid as it slowly rises through the openings. The tubular membrane (11) is flexible and is to be mounted on a manifold (14, 15) which connects it to a source of air or gas, and which may also impart buoyancy or serve as an anchor in the liquid.

L'invention porte sur un diffuseur (1) mélangeant et oxygénant de l'eau ou d'autres liquides à l'aide d'un flux d'air et comprenant une membrane tubulaire autoporteuse (11) disposée en spirale ou en grille dont les ouvertures sont au moins égales au diamètre de la membrane (11) et s'étendant à la fois horizontalement et verticalement entre les circuits ou les grilles du diffuseur (1). Le gaz lorsqu'il est insufflé à travers la membrane tubulaire (11) forme de fines bulles qui agitent, oxygènent et entraînent le liquide environnant alors qu'il s'élève lentement à travers les ouvertures. La membrane tubulaire (11) est souple et doit être montée sur une tubulure (14, 15) qui la relie à une source d'air ou de gaz, peut donner de la flottabilité ou servir d'ancre dans le liquide.

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