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Extended area filter with internal support structures

A filter and metal filtration technology, applied in membrane filter, fixed filter element filter, filtration and separation, etc., can solve the problems of high pressure gradient on both sides of filter medium and deformation of filter basket.

Inactive Publication Date: 2014-02-05
PUROLATOR FACET INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some filter baskets may be used to filter fluids under high pressure, potentially causing a high pressure gradient across the filter media
During high pressure filtration operations, filter baskets may deform from their original manufactured configuration

Method used

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  • Extended area filter with internal support structures
  • Extended area filter with internal support structures
  • Extended area filter with internal support structures

Examples

Experimental program
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Embodiment Construction

[0041] refer to Figure 1-2, a first exemplary embodiment of an extended area filter is shown configured as an extended area filter basket 100 having an end ring 102, an inlet face 124, an outlet face 126, and a plurality of sheets 116 of metal filter media, the sheets 116 Can be configured as filter tube 116 or otherwise wound to extend between inlet face 124 and outlet face 126 . The inlet face 124 of the filter 100 and the outlet face 126 of the filter 100 are generally planar and perpendicular to the longitudinal axis 118 of the filter 100 and are disposed at opposite axial ends of the filter 100 . In other embodiments, the axial length of the filter tube 116 may be varied such that the inlet face 124 and / or the outlet face are non-flat (generally conical, parabolic, etc.).

[0042] As can be seen in the figure, a plurality of filter tubes 116 are arranged to provide a large amount of metal filter media in a compact volume area. In the illustrated embodiment, the filter ...

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Abstract

An extended area filter is provided. The extended area filter has sheets of a filter media configured for increased filter media surface area. A plurality of filter media tubes are position in a concentric arrangement about a longitudinal axis of the filter, defining annular inlet volumes and annular outlet volumes, the annular inlet volumes receiving an unfiltered fluid, and the outlet volumes receiving a filtrate passed through the tubes of filter media. Internal support elements suitable for placement within the outlet volumes are also provided. A filter apparatus configured for filtering a contaminated fluid and employing extended area filters of the invention is also provided.

Description

technical field [0001] The present invention generally relates to filters. More specifically, the present invention relates to filter baskets having internal support elements suitable for use in high pressure filtration operations. Background technique [0002] Filter baskets are used in housings on many occasions and in a large number of industries. Filter baskets can be used in several configurations including no backwash, backwash and pre-coated resin arrangements. [0003] Housings with filter baskets have long been used in the industrial market. Occasions for the use of these types of filters have grown to include environments where standard disposable non-woven polymeric filter packs are not acceptable or cost effective. Reusable metal filter baskets are used instead of disposable filter baskets for various reasons such as temperature, properties of the fluid being filtered, economics, and the ability to clean the filter basket in situ by backwashing. [0004] Stan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/10B01D39/14B01D46/24B01D46/42B01D29/54
CPCB01D2201/0415B01D39/10B01D29/111B01D29/66B01D46/0021B01D29/114B01D29/54B01D2265/06B01D2201/0446B01D29/52B01D46/2411B01D2239/0695B01D46/60
Inventor S·A·霍普金斯
Owner PUROLATOR FACET INC