Purifying plant for water to be vaporized in a steam generator o

Details Purifying plant for water to be vaporized in a steam generator o Purifying plant for water to be vaporized in a steam generator o

1977-12-05

1980-08-05

Engle, Samuel W.

176 65, G21D 102

Patent

active

042160570

ABSTRACT:
A purification system for water to be vaporized in a steam generator of a nuclear reactor having a feedwater circulatory loop includes an electromagnetic filter having an inlet and an outlet connected in the feedwater circulatory loop, a line branching from the feedwater circulatory loop downstream of the electromagnetic filter in direction of feedwater flow therethrough, an ion exchange filter connected in the line, means for reducing pressure and temperature connected in the line upstream of the ion exchange filter in feedwater flow direction through the line, a shut-off valve connected in the feedwater circulatory loop upstream of the electromagnetic filter in the feedwater flow direction through the loop, and a connecting line extending from the feedwater tank to a location of the feedwater circulatory loop between the shut-off valve and the inlet of the electromagnetic filter. In another embodiment, instead of the connecting line, a circulatory pump is connected in the feedwater circulatory loop between the shut-off valve and the electromagnetic filter, the circulating pump having a pressure side connected to the electromagnetic filter and having a suction side connected to the shut-off valve, and a rinsing line extends from the pressure and temperature reducing means (a flash tank) and terminates in the feedwater circulatory loop between the suction side of the circulatory pump and the shut-off valve.

REFERENCES:
patent: 3539509 (1970-11-01), Heitmann
patent: 3700550 (1972-10-01), Shiells
patent: 3887457 (1975-06-01), Marston
patent: 3894391 (1975-07-01), Heitmann
patent: 3972772 (1976-08-01), Heitmann
patent: 4024911 (1977-05-01), Forrest et al.
patent: 4043864 (1977-08-01), Heitmann

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