Liquid purification or separation – Flow – fluid pressure or material level – responsive
Patent
1988-07-01
1990-01-23
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
55212, 55314, 55484, 98 345, 210167, 210194, B01D 4600
Patent
active
048956449
ABSTRACT:
A fluid recirculation and makeup supply system having an alternate purification loop (84) in parallel with a portion of the recirculation loop (26). In the alternate purification mode of operation of the system a predetermined portion of the recirculated fluid is drawn through the purification loop (84) in parallel with a flow of the remainder of the recirculated fluid through the normal parallel recirculation flow path (86). The volume of fluid drawn through the purification path (84) is established to maintain the purification loop operating at its maximum efficiency. A makeup fluid supply loop (24) having a normal flow path (42) and an alternate, parallel filtration flow path (50), communicates with the recirculation loop (26). The amount of fluid inputted to the makeup loop (24), supplied through the makeup loop (24) to the recirculation loop (26), and drawn through the filtration path (50) are controlled, in the alternate filtration mode of operation, to establish a counter flow of fluid in the normal makeup flow path (42) so that none of the makeup fluid supplied to the recirculation loop (26) bypasses the filtration path (50).
REFERENCES:
patent: 3750557 (1973-08-01), Peill et al.
patent: 3964887 (1976-06-01), Hickey et al.
Cintins Ivars
Westinghouse Electric Corporation
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