Sump system and method for collecting liquid to be filtered

Details Sump system and method for collecting liquid to be filtered Sump system and method for collecting liquid to be filtered

1994-06-20

1995-11-14

Dawson, Robert A.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210744, 210805, 210808, 210104, 210123, 210168, 210196, 210418, 2104165, 409137, 184 614, 1841032, 137399, 137563, 137565, 137572, 137907, B01D 3700, B01D 3600

Patent

active

054663806

ABSTRACT:
A sump system and method for collecting liquid from a number of locations includes a series of sumps each collecting liquid at a particular location, and a central sealed collection tank drawing liquid from all of the sumps by overhead draw pipes. A single large capacity pump pumps liquid back to filtration equipment, with a predetermined vacuum level maintained in the tank by opening and closing an outlet valve between the pump and the filtration equipment. The collection tank may be initially filled from an overhead clean supply header.

REFERENCES:
patent: 3897335 (1975-07-01), Brandt
patent: 3954611 (1976-05-01), Reedy
patent: 4139464 (1979-02-01), Coward
patent: 4233157 (1980-11-01), Miller
patent: 4325663 (1982-04-01), Lee
patent: 5230793 (1993-07-01), Lenhart et al.
patent: 5380446 (1995-01-01), Bratten

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