Tubular membrane separation apparatus

Liquid purification or separation – Flow – fluid pressure or material level – responsive – Maintaining stream pressure or flow

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Details

210353, 210355, 210433M, B01D 3100

Patent

active

042005310

ABSTRACT:
The present invention relates to a tubular membrane separation apparatus used for purification of turbid water, concentration of liquid material, sea-water desalting and so on, which is characterized by a feedwater line, a tubular membrane member adapted to concentrate a feedwater, a concentrated-water line which is disposed in such a manner that the direction of flow therein is opposite to the direction of flow in the feedwater line and a cleaning ball delivery member, said cleaning ball delivery member including a stationary member disposed to cross the feedwater line and concentrated-water line and divide each of the two lines into an upstream and downstream segment, the stationary member being provided with passageways extending in parallel with each other and respectively adapted to communicate the upstream segment of the feedwater line with the downstream segment thereof and the upstream segment of concentrated-water line with the downstream segment thereof, a movable member which comprises at least one ball retaining member including a chamber formed in communicable relationship with an upstream and a downstream segment of each of the passageways and a screen disposed adjacent one end of said chamber, the movable member being movably mounted within the stationary member in such a manner that the ball retaining member may be alternately shifted into phase with the two passageways, and seal members adapted and disposed to establish a fluid-tight seal between cooperating surfaces of the stationary member and the movable member.

REFERENCES:
patent: 2801824 (1957-08-01), Taprogge
patent: 3547142 (1970-12-01), Webb
patent: 4080289 (1978-03-01), Ebara et al.

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