Spacer for filter modules

A technology of filter components and partitions, which is applied in thin material processing, membranes, general water supply saving, etc., can solve the problem of ensuring the limited distance between the partition and the surface of the filter material, the inability to clearly predict the filtration characteristics, blocking the substantial part of the surface of the filter medium, etc. question

Inactive Publication Date: 2007-09-19
PALL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The separator proposed in US 4,834,881 has the disadvantage that it is difficult to ensure a defined distance between the separator and the surface of the filter material due to the staggered rib structure employed
This can result in filter properties that cannot be clearly predicted
Additionally, staggered baffles block a substantial portion of the filter media surface

Method used

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  • Spacer for filter modules
  • Spacer for filter modules
  • Spacer for filter modules

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0079] 1 schematically shows a filter assembly 10 consisting of a first filter medium layer 12 and a second filter medium layer 14, the two filter medium layers 12 and 14 being formed by a plate 18 with upper and lower projections 20, 22. The partitions 16 are spaced apart in parallel directions, wherein the upper and lower projections rise respectively from the upper and lower surfaces of the sheet 18 to define upper and lower support surfaces for the layers of filter media 12 and 14 .

[0080] The protrusions 20 and 22 are in the form of point-like needle-like or column-like protrusions comprising a cylindrical wall portion 24 and a rounded top 26 in contact with the layers of filter media 14 and 12 respectively.

[0081] Due to the vertical orientation of the cylindrical wall 24 with respect to the plate 18, no areas are created that block the feed fluid to be observed. Thus, the tendency to fouling is greatly reduced.

[0082] Furthermore, the upper and lower protrusions...

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PUM

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Abstract

In order to provide a spacer for filter modules which may be used not only for plate and frame filter modules, but also for spiral wound-type filter modules and which allows high packing densities while providing optimized cleanability, a spacer for filter modules is proposed to be disposed between two layers of a filter medium, said spacer comprising an essentially flat structured sheet material having upper and lower projections on the upper and lower surfaces thereof, respectively, said upper and lower projections defining an upper and lower bearing face for the layers of filter medium, wherein said projections rise from said upper and lower surfaces with wall portions and terminate in top portions, said upper and lower projections being spaced from each other in a direction parallel to the surface of the sheet material.

Description

technical field [0001] The present invention relates to a partition for a filter assembly arranged between two layers of filter media, said partition comprising a plate of substantially flat construction with upper and lower projections on its upper and lower surfaces. The upper and lower protrusions define upper and lower bearing surfaces for the filter media layer. Background technique [0002] This type of separator is commonly used in open flow filter designs and, in particular, may be used where the membranes that form the filter media are used. Separators can be used in spiral wound or plate and frame modules for microfiltration, ultrafiltration, nanofiltration and reverse osmosis. [0003] Filter assemblies of this type are frequently used to solve filtration problems, eg in the treatment of industrial process water, the treatment of leachate from landfills or the desalination of sea water. [0004] Heretofore, separators for plate and frame filter assemblies have t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/08B01D63/10
CPCY10T428/24744B01D63/10B01D2313/14Y10T428/24B01D63/082Y02A20/131
Inventor 加百利·波保琼·苏迪罗彼得拉·约翰森格奥尔格·莱茵霍尔德
Owner PALL CORP
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