Reverse osmosis system with cycled pressure intensifiers

Details Reverse osmosis system with cycled pressure intensifiers Reverse osmosis system with cycled pressure intensifiers

1990-06-13

1992-10-13

Spear, Frank

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Plural elements controlled

21032187, 2104161, C02F 144

Patent

active

051548208

ABSTRACT:
A reverse osmosis system comprising a reverse osmosis filter having an inlet port connectible to a source of feedwater under pressure via a feedwater inlet conduit, a product water outlet port for filtered product water and brine outlet port for brine. First and second pressure intensifiers are coupled to the feedwater inlet conduit between the source of feedwater and the inlet port of the reverse osmosis filter. Each of the pressure intensifiers includes a pumping member having a pumping stroke and a return stroke. A control valve in the feedwater inlet conduit controls which of the pressure intensifiers receives feedwater under pressure. The control valve is driven by particular fluid pressures in the first and second pressure intensifiers so that feedwater is alternately supplied to the first and second pressure intensifiers.

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