Mixing device and mixing method

B - Operations – Transporting – 01 – F

Patent

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Details

B01F 5/00 (2006.01)

Patent

CA 2532609

The invention relates to a mixing device which is arranged in a flow channel and a mixing method for mixing a fluid flowing through the flow channel in a main direction of flow. The mixing device has a plurality of mixer disks which generate leading edge eddies in a fluid flowing through the flow channel in a main direction of flow. The mixer disks are arranged in mixer disk rows in row axes running essentially across the main direction of flow. The mixer disk rows are arranged side by side in the main direction of flow in a common flow channel section where the mixer disks of neighboring mixer disk rows are alternately angled in a positive angle of attack and in a negative angle of attack with respect to the main direction of flow. According to this process, the fluid flowing through the flow channel is mixed thoroughly by a leading edge eddy system, whereby in the mixing method presented here at least two contra-rotating leading edge eddy systems are generated in a common flow channel section.

La présente invention concerne un dispositif mélangeur disposé dans un passage d'écoulement, ainsi qu'une méthode de mélange d'un fluide circulant dans la direction générale d'écoulement dudit passage. Le dispositif mélangeur comporte plusieurs disques dont les bords d'attaque créent des tourbillons dans le fluide qui circule dans la direction générale du passage d'écoulement. Les disques mélangeurs sont disposés en rangée avec leur axe sensiblement perpendiculaire à la direction générale de l'écoulement. Les rangées de disques sont disposées côte à côte dans la direction générale de l'écoulement à l'intérieur d'une section de passage commun, de telle manière que les rangées de disques adjacentes soient inclinées en alternance d'un angle d'attaque positif et d'un angle d'attaque négatif par rapport à la direction générale de l'écoulement. Dans ce procédé, le fluide qui circule dans le passage d'écoulement subit un brassage énergique par les systèmes de tourbillons créés par les bords d'attaque des disques; la méthode de l'invention consistant à créer au moins deux systèmes de tourbillons contrarotatifs à l'intérieur d'une section de passage commune.

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