Ultrafiltration device in a pressurized water nuclear reactor

Details Ultrafiltration device in a pressurized water nuclear reactor Ultrafiltration device in a pressurized water nuclear reactor

1984-09-24

1987-08-04

Terapane, John F.

Induced nuclear reactions: processes, systems, and elements

Fission reactor material treatment

Impurity removal

210650, 210772, 210778, 210779, 210798, G21C 1930

Patent

active

046844945

ABSTRACT:
Process and apparatus for ultrafiltration of the cooling water of a pressurized water nuclear reactor, during operation of the reactor. A fraction of the flow of pressurized water is withdrawn continuously in at least one cold branch (8) of the primary circuit (2). This withdrawn water is circulated, while it is still at the temperature and pressure of the primary circuit (2), in contact with the entry face of an ultrafiltration wall (40). The filtrate is withdrawn at a pressure which is less than 15 bars lower than the primary water pressure. The concentrate is kept in circulation with the entry face of the wall (40). The wall (40) can consist of an assembly of tubes maintained between two tube plates. The invention applies to pressurized water nuclear reactors whatever the number of primary circuit loops.

REFERENCES:
patent: 3890233 (1975-06-01), Gischel
patent: 4043864 (1977-08-01), Heitmann
patent: 4105547 (1978-08-01), Sandblom
patent: 4251377 (1981-02-01), Schleinitz
patent: 4276177 (1981-06-01), Smith
Post, Roy G., "Waste Management," ANS Topical Meeting, Symposium on Waste Management, Feb. 23-26, 1981, Tucson, Arizona, pp. 789-810.

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