Method for regulating the pressure of the primary circuit during

Details Method for regulating the pressure of the primary circuit during Method for regulating the pressure of the primary circuit during

1985-09-03

1988-03-01

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

With pressurizer means

165 40, 16510432, G21C 900, G21D 300

Patent

active

047284854

ABSTRACT:
Method for regulating the pressure of the primary circuit of a pressurized water nuclear reactor during shut-down phases, by use of an installation comprising, as a branch circuit to the primary circuit, a volume control circuit with a discharge valve and a charging valve. When the liquid level in the pressurizer approaches the top, a constant flow rate is maintained at the charging valve, the flow rate of the discharge valve is regulated by direct measurement of the primary pressure, successive sprinklings through the valve follow and the reduction in discharge flow rate is detected until further sprinkling has no further effect on the discharge flow rate.

REFERENCES:
patent: 3060110 (1962-10-01), Wainrib
patent: 3114414 (1963-12-01), Judd
patent: 3722578 (1973-03-01), Frei et al.
patent: 3981444 (1976-09-01), Weiss

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