A fluid fractionating, stacked permeable membrane envelope...

B - Operations – Transporting – 01 – D

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182/15.1

B01D 63/08 (2006.01) B01D 65/08 (2006.01) B01D 69/10 (2006.01)

Patent

CA 2003539

A stacked permeable membrane envelope assembly comprises two clamping plates with spaced, permeable membrane envelope assemblies clamped between them on frames. Each membrane envelope comprises two membrane covered, perforated plates clamped together to provide inner permeate chambers and outer feed fluid passages. Fluid distributing and permeable membrane sealing collars are provided comprising two annular plates with a radially scalloped, substantially rigid channel separator ring located between them. The annular plates seal the membranes against the dished plates around feed fluid passages through the envelope assemblies while the radial scallops form passages for fluid to flow between adjacent membrane envelopes.

Ensemble d'enveloppes à membrane perméable superposées comprenant deux plaques de serrage avec des enveloppes à membrane perméable espacées qui sont serrées entre elles sur des bâtis. Chaque enveloppe à membrane est constituée de deux plaques perforées recouvertes d'une membrane serrées ensemble de manière à obtenir des chambres intérieures de perméat et des passages extérieurs de fluide d'alimentation. L'installation comprend des colliers de distribution du fluide et de scellement de la membrane perméable constitués de deux plaques annulaires entre lesquelles se trouve un anneau séparateur à canaux rigides radialement festonné. Les plaques annulaires scellent les membranes contre les plaques incurvées autour des passages de fluide d'alimentation à travers les enveloppes, tandis que les festons radiaux forment des passages par où peut s'écouler le fluide entre les enveloppes à membrane adjacentes.

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