Water purifying apparatus

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 35/01 (2006.01) B01D 36/00 (2006.01) C02F 1/00 (2006.01) C02F 1/28 (2006.01) C02F 1/42 (2006.01) C02F 1/44 (2006.01)

Patent

CA 2350292

A structure for venting of gasses from fluids, and in particular, venting of gasses from filter elements or filter media used in water treatment devices. The structure incorporates a fluid flow diverter having a vent tube, tangential flow diverter and a lower air collection space to vent air from an interface between stages of the filter cartridge. The vent structure is particularly suited to systems having a pressure drop of 1 psi or less, such as those systems which filter a fluid by a pressure differential generated by gravity alone, or aided by a manual pressurization means. There is also disclosed a multi-stage filter cartridge, incorporating the vent structure, and having an upper stage including granular carbon and a lower stage including a plurality of hollow fibers.

Structure pour l'éventation de gaz à partir de fluides, en particulier, l'éventation de gaz provenant d'éléments filtrants ou de matériaux filtrants utilisés dans des dispositifs de traitement d'eau. La structure comporte un dispositif de déviation de l'écoulement de fluide, ayant un tube d'aération, un dispositif de déviation de l'écoulement tangentiel et un volume de collecte d'air inférieur pour éventer de l'air à partir d'une interface entre les niveaux de l'élément filtrant. La structure d'éventation est particulièrement adaptée à des systèmes ayant une perte de charge de 1 psi ou moins, comme les systèmes qui filtrent un fluide par une différence de pression générée par la gravité ou aidée par un moyen de pressurisation manuel. L'invention porte également sur un élément filtrant à plusieurs niveaux, qui incorpore la structure d'éventation et qui a un niveau supérieur contenant du carbone granulaire et un niveau inférieur contenant une pluralité de fibres creuses.

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