Compact multigas filter

Details Compact multigas filter Compact multigas filter

B - Operations, Transporting

01

D

B01D 46/52 (2006.01) A62B 23/02 (2006.01) B01D 46/00 (2006.01)

Patent

CA 2747782

A filter assembly includes a filter bed comprising at least one chemical filtering medium and a pleated filter element. The pleated filter element includes a particulate filtering medium and at least one chemical filtering medium. In one implementation, the pleated element includes a non-woven web of polymeric fibers and more than 60 percent weight sorbent particles enmeshed in the web. At least one chemical filtering medium in the pleated element and at least one chemical filtering medium of the filter bed can be designed to be capable of targeting different chemical substances. Some filter assemblies of the present disclosure may be disposed within an interior of a fluid-impermeable housing having an inlet and an outlet.

La présente invention concerne un ensemble filtre qui comprend un lit filtrant comportant au moins un milieu chimique filtrant et un élément filtre plissé. L'élément filtre plissé comprend un milieu filtrant particulaire et au moins un milieu chimique filtrant. Dans un mode de réalisation, l'élément plissé comporte une bande non tissée de fibres polymères et plus de 60 % en poids de particules de sorbant prises dans la bande. Il est possible de concevoir au moins un milieu chimique filtrant dans l'élément plissé et au moins un milieu chimique filtrant du lit filtrant qui soient capables de cibler les différentes substances chimiques. Certains ensembles filtre de la présente invention peuvent être disposés à l'intérieur d'un logement imperméable aux fluides doté d'une entrée et d'une sortie.

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