A method and apparatus for minimising noise from fan filter...

F - Mech Eng,Light,Heat,Weapons – 24 – F

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F24F 7/007 (2006.01) F04D 29/66 (2006.01) F04D 29/70 (2006.01)

Patent

CA 2302177

The present invention is a system of geometric guides and baffles for directing and diffusing the external air drawn from a fan blower before distributing the flow evenly to the outlet of a fain filter unit. This arrangement not only reduces the turbulence within a fan filter unit but also maintains the particle count of air drawn through the same system. Furthermore, the present invention is implemented in dimensions substantially similar to that of the fan blower. As such, the present invention minimises noise of a fan filter unit even in confined clean room facility.

L'invention concerne un système se composant de guides et de déflecteur géométriques conçus pour diriger et diffuser l'air extérieur aspiré par un ventilateur de soufflage avant la répartition homogène du flux par la sortie d'une unité de filtrage à soufflerie. Ledit agencement permet non seulement de réduire les turbulences à l'intérieur d'une unité de filtrage à soufflerie mais également d'assurer le comptage de particules dans le même système. De plus, l'appareil de l'invention présente des dimensions sensiblement similaires à celle du ventilateur soufflant. Ainsi, on réduit le bruit produit par une unité de filtre à soufflerie, même dans une installation confinée de salle blanche.

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