Nuclear reactor shutdown system

Details Nuclear reactor shutdown system Nuclear reactor shutdown system

1980-10-15

1983-09-20

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By movement of control element or by release of neutron...

376243, 376336, G21C 708

Patent

active

044055587

ABSTRACT:
The nuclear reactor shutdown system comprises a temperature sensitive device connected to a magnetic latch of a neutron absorbing mechanism. The temperature sensitive device is disposed in the neutron absorbing mechanism in such a manner that it is exposed to the reactor coolant so that when the reactor coolant temperature rises above a specific level, the temperature sensitive device will cause the magnetic latch to open and allow neutron absorbing material to enter the reactor core. The temperature sensitive device comprises temperature sensitive material which may be a temperature sensitive resistor sometimes referred to as a thermistor. The thermistor is a device wherein its resistivity significantly increases with increase in its temperature such that when its temperature has significantly increased, the current passing through this system substantially decreases. Therefore, when the nuclear reactor coolant temperature rises significantly, the resistivity in the temperature sensitive material significantly increases to the point where little electricity flows through the circuit thereby causing the magnetic field in the magnetic latch to fall to a level at which the magnetic latch opens thereby inserting neutron absorbing material in the reactor core.

REFERENCES:
patent: 2931763 (1960-04-01), Dever
patent: 3115453 (1963-12-01), Paget
patent: 3147188 (1964-09-01), Campbell
patent: 3170842 (1965-02-01), Kehler
patent: 3194740 (1965-07-01), Frisch
patent: 3483082 (1969-12-01), Dosh et al.
patent: 3784788 (1974-01-01), Fourny
patent: 3940309 (1976-02-01), Imperiali
patent: 3976540 (1976-08-01), Sowa
patent: 4073681 (1978-02-01), Glazar et al.
patent: 4104507 (1978-08-01), Trsone et al.
patent: 4139414 (1979-02-01), Giuggio et al.
patent: 4304632 (1981-12-01), Bhate et al.
Apex-492, 5/59, pp. 7, 16, 21, 71-74.

Affiliated with

Also associated with

Rating

Nuclear reactor shutdown system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nuclear reactor shutdown system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear reactor shutdown system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-587321