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Title: 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:
 [1]
  1. Lisle, IL
Issue Date:
Research Org.:
Argonne National Lab. (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):
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
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
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 = {1976},
month = {1}
}

Patent:

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