Apparatus and method for reactor monitoring

Details Apparatus and method for reactor monitoring Apparatus and method for reactor monitoring

1984-04-18

1986-10-14

Cangialosi, Salvatore

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Temperature or pressure measurement

G21C 1700

Patent

active

046171681

ABSTRACT:
A method and apparatus are disclosed for monitoring the operation of a boiling water nuclear reactor for the occurrence of a superheated condition. The invention provides redundant monitoring of the level of coolant water in the reactor independently of existing water level gauges. A closed system vapor pressure device, located outside the reactor, probes the temperature of the reactor steam. The temperature of the steam determines the internal vapor pressure developed in the device, the latter being directly compared, externally of the reactor, to the steam pressure in the reactor vessel. The differential between the compared pressures is an indication of a superheated reactor condition and, hence, of a low water level in the vessel.

REFERENCES:
patent: 3128233 (1964-04-01), Kuerzel
patent: 3296864 (1967-01-01), Kealy et al.
patent: 3625815 (1971-12-01), Fishman
patent: 3812719 (1974-05-01), Shopsky
patent: 4394346 (1983-07-01), Morooka
patent: 4405559 (1983-09-01), Tokarz
patent: 4414177 (1983-11-01), Tokarz
patent: 4495137 (1985-01-01), Otsubo

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