Fixed rigid wall device for compressed pleat configuration filters

Patent metadata

Field	Value
Publication number	US-2019224626-A1
Application number	US-201716315069-A
Country	US
Kind code	A1
Filing date	Aug 23, 2017
Priority date	Aug 29, 2016
Publication date	Jul 25, 2019
Grant date	—

Abstract

A scaling tool for replicating filtration characteristics of a large-scale filtration device, the scaling tool comprising a housing having a fluid inlet and a fluid outlet, and a filter receiving region in fluid communication with the fluid inlet and the fluid outlet and configured to contain a membrane comprising one or more pleats, the filter receiving region being defined by a rigid wall framework configured to hold the one or more pleats of the membrane and compress the pleats in an amount effective to replicate the filtration performance of the large-scale filtration device. Also disclosed is a methodology for configuring a filter receiving region in a scaling tool.

First claim

What is claimed is:

1 . A scaling tool for replicating filtration characteristics of a large-scale filtration device, said scaling tool comprising a housing having a fluid inlet and a fluid outlet, and a filter receiving region in fluid communication with said fluid inlet and said fluid outlet and configured to contain a membrane comprising one or more pleats, said filter receiving region being defined by a rigid wall framework configured to hold said one or more pleats of said membrane and compress said pleats in an amount effective to proportionally replicate the filtration performance of said large-scale filtration device.

2 . The scaling tool of claim 1 , wherein filter receiving region is in the form of a wedge-shaped.

3 . The scaling tool of claim 1 , wherein said pleats of said pleated membrane are oriented in an M-pleat pattern.

4 . The scaling tool of claim 1 , wherein said proportional replication is a 1:1 replication of throughput.

5 . The scaling tool of claim 1 , wherein said housing comprises a cover having said fluid inlet, and a base member having said fluid outlet and said filter receiving region, said cover and said base member being sealed together.

6 . A method for configuring a filter receiving region of a scaling tool for proportionally replicating the filtration performance of a large scale filtration device having an inner core and an outer sleeve, the filter in said large scale device occupying the region between said inner core and said outer sleeve, said method comprising:
determining the number of pleats of said filter in said large scale device; determining the pleat height of a pleat of said filter in said large scaling device spanning the distance between said inner core and said outer sleeve in said large scale device; determining the angle between adjacent pleat centers of said pleats in said large scale device; determining the base width occupied by a pleat in said large scale device; providing a scaling device filter having a number of pleats less than said number of pleats in said large scale device and a height corresponding to said pleat height of said pleat spanning the distance between said inner core and said outer sleeve in said large scale device, configuring said filter receiving region of said scaling device to have (a) a base having a width proportional to said base width occupied by a pleat in said large scale device, (b) walls extending from said base at an angle corresponding to said determined angle of said adjacent pleat centers of said pleats of said large scale, and (c) a length of between about ½ inch and about 1 inch.

Assignees

• Emd Millipore Corp

Inventors

• Liu Songhua
• Lynch Michael
• Sylvia Ryan
• Almasian Joseph
• Giglia Salvatore
• Messier Luc

Classifications

• B01D63/14 Primary

  Pleat-type membrane modules · CPC title

• B01D46/04 Primary

  Cleaning filters · CPC title

• B01D46/00

  Filters or filtering processes specially modified for separating dispersed particles from gases or vapours (filtering elements B01D24/00-B01D35/00; filtering material B01D39/00; their regeneration outside the filters B01D41/00) · CPC title

• B01D46/522

  with specific folds, e.g. having different lengths · CPC title

• B01D2201/122

  with pleats of different length · CPC title