Magnetic latch trigger for inherent shutdown assembly
Abstract
An inherent shutdown assembly for a nuclear reactor is provided. A neutron absorber is held ready to be inserted into the reactor core by a magnetic latch. The latch includes a magnet whose lines of force are linked by a yoke of material whose Curie point is at the critical temperature of the reactor at which the neutron absorber is to be inserted into the reactor core. The yoke is in contact with the core coolant or fissionable material so that when the coolant or the fissionable material increase in temperature above the Curie point the yoke loses its magnetic susceptibility and the magnetic link is broken, thereby causing the absorber to be released into the reactor core.
- Inventors:
-
- Lisle, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 862618
- Patent Number(s):
- 3976540
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- magnetic; latch; trigger; inherent; shutdown; assembly; nuclear; reactor; provided; neutron; absorber; held; inserted; core; magnet; lines; force; linked; yoke; material; curie; critical; temperature; contact; coolant; fissionable; increase; loses; susceptibility; link; broken; causing; released; neutron absorber; critical temperature; nuclear reactor; reactor core; fissionable material; shutdown assembly; core coolant; inherent shutdown; magnetic latch; /376/976/
Citation Formats
Sowa, Edmund S. Magnetic latch trigger for inherent shutdown assembly. United States: N. p., 1976.
Web.
Sowa, Edmund S. Magnetic latch trigger for inherent shutdown assembly. United States.
Sowa, Edmund S. Thu .
"Magnetic latch trigger for inherent shutdown assembly". United States. https://www.osti.gov/servlets/purl/862618.
@article{osti_862618,
title = {Magnetic latch trigger for inherent shutdown assembly},
author = {Sowa, Edmund S},
abstractNote = {An inherent shutdown assembly for a nuclear reactor is provided. A neutron absorber is held ready to be inserted into the reactor core by a magnetic latch. The latch includes a magnet whose lines of force are linked by a yoke of material whose Curie point is at the critical temperature of the reactor at which the neutron absorber is to be inserted into the reactor core. The yoke is in contact with the core coolant or fissionable material so that when the coolant or the fissionable material increase in temperature above the Curie point the yoke loses its magnetic susceptibility and the magnetic link is broken, thereby causing the absorber to be released into the reactor core.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1976},
month = {Thu Jan 01 00:00:00 EST 1976}
}
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