B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 35/16 (2006.01) B01D 29/11 (2006.01) B01D 29/60 (2006.01) B01D 29/66 (2006.01)
Patent
CA 2423088
A filter backflushing system including an accumulator containing a pressurized bladder which propels a supply of backwash fluid contained within the accumulator in a reverse direction through a filter element. While the backwash fluid is pumped within the accumulator, an inert gas inside the bladder is compressed against the inside walls of the accumulator. Upon reaching a pressure of approximately 300-600 psi, the filtered fluid is released from the accumulator and the full energy of the compressed gas is released as well. This release produces a high pressure rapid burst of backwash fluid which effectively removes clogging contaminants from a filter element.
L'invention concerne un système de contre-balayage pour filtre comprenant un accumulateur comportant une vessie sous pression permettant de propulser un liquide de contre-balayage contenu dans l'accumulateur dans une direction inversée à travers un élément de filtration. Alors que le liquide de contre-balayage est pompé dans l'accumulateur, un gaz inerte, à l'intérieur de la vessie, est comprimé contre les parois intérieures de l'accumulateur. Lorsqu'une pression d'environ 300-600 psi est atteinte, le fluide filtré est libéré de l'accumulateur et l'énergie du gaz comprimé est aussi libérée. Cette libération produit une salve rapide haute pression de liquide de contre-balayage qui permet d'enlever avec efficacité les contaminants qui colmatent un élément de filtration.
Kadant Inc.
Nelligan O'brien Payne Llp
LandOfFree
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