Temperature sensitive self-actuated scram mechanism

Details Temperature sensitive self-actuated scram mechanism Temperature sensitive self-actuated scram mechanism

1977-06-10

1980-05-27

Engle, Samuel W.

176 36C, 176 86R, G21C 706, G21C 708, G21C 710

Patent

active

042049091

ABSTRACT:
A self-actuated mechanism within a safety assembly in a liquid metal nuclear reactor comprising sensor fuel pins located in a reactor coolant flow path, a sensor bulb containing NaK located near the upper end of the sensor fuel pins and in the reactor coolant flow path, and a sensor tube connecting the sensor bulb to a metal bellows and push rod. The motion of the push rod resulting from the temperature dependent change in the NaK volume actuates a safety rod release mechanism when a predetermined coolant temperature is reached.

REFERENCES:
patent: 3733251 (1973-05-01), Gilbertson
patent: 3941413 (1976-03-01), Johnson
patent: 3992257 (1976-11-01), Erp

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