APPARATUS FOR THE TREATMENT OF A LIQUID PARTICULARLY BY REVERSE OSMOSIS

• US 3,820,661 A
• Filed: 04/23/1971
• Issued: 06/28/1974
• Est. Priority Date: 04/24/1970
• Status: Expired due to Term

• Current Assignee: Societe de Fabrication D'Elements Catalytiques
• Original Assignee: Pages M
• Inventors: PAGES M
• Application Number:
  US05/136,859
• Time in Patent Office: 1,162 Days
• US Class Current: 210/321.81
• CPC Class Codes: B01D 63/065 on the outer surface thereof
• CPC Class Codes: Y02A 20/131 Reverse-osmosis

Abstract

Apparatus particularly useful in reverse osmosis, dialysis or ultrafiltration, having a plurality of porous tubular supports coated with a semi-permeable membrane fitted in a casing consisting of an annular sleeve with a guide plate at each end. A fluid to be treated is communicated to the exterior of the porous tubular supports, while product fluid is obtained from the interior of the porous tubular supports. The guide plates slidably mount in holes therethrough the ends of the porous tubular supports while the ends of the casing are closed by end plates clamping the guide plates in position relative to the casing.

Claims

1. Apparatus for treatment of a fluid by use of a semipermeable membrane and comprising in combination:

a. a casing;

b. a plurality of porous tubular supports;

c. a semipermeable membrane around each of said porous tubular supports;

d. means for providing a flow of fluid to the exterior of said porous tubular supports;

e. means for receiving a flow of fluid from the interior of said porous tubular supports;

f. two guide plates mounted to the casing and each provided with a plurality of holes therethrough, the porous tubular supports being slidably received in said holes for mounting within the casing; and

g. a prismatic sheath of polygonal cross-section surrounding each porous tubular support, the sheath around each tubular support being in face contact with sheaths around adjacent supports.

2. Apparatus according to claim 1, wherein each sheath is sealed to the corresponding tubular support at each end and has a port at each end, at least one of which ports being in communication with a port of an adjacent sheath whereby fluid flow flows alternately in opposite directions lengthwise of the exterior of the supports.

3. Apparatus according to claim 2, which comprises a supplementary sheath which does not have a tubular support associated therewith but has an inlet portion at one end thereof, an outlet portion at the other end thereof, and a partition separating the inlet and outlet portions, the inlet portion communicating to the means for providing a flow of liquid to the exterior of said porous tubular supports and with at least one adjacent sheath, and the outlet portion communicating to the exterior of the apparatus and to at least one other adjacent sheath.

4. Apparatus according to claim 1, wherein an annular space is defined between the sheaths and the casing.