Nuclear reactor spacer grid and ductless core component
Abstract
The invention relates to a nuclear reactor spacer grid member for use in a liquid cooled nuclear reactor and to a ductless core component employing a plurality of these spacer grid members. The spacer grid member is of the egg-shell type and is constructed so that the walls of the cell members of the grid member are formed of a single thickness of metal to avoid tolerance problems. Within each cell member is a hydraulic spring which laterally constrains the nuclear material bearing rod which passes through each cell member against a hardstop in response to coolant flow through the cell member. This hydraulic spring is also suitable for use in a water cooled nuclear reactor. A core component constructed of, among other components, a plurality of these spacer grid members, avoids the use of a full length duct by providing spacer sleeves about the sodium tubes passing through the spacer grid members at locations between the grid members, thereby maintaining a predetermined space between adjacent grid members.
- Inventors:
-
- Kennewick, WA
- Richland, WA
- Issue Date:
- Research Org.:
- WESTINGHOUSE HANFORD CO
- OSTI Identifier:
- 866905
- Patent Number(s):
- 4818479
- Assignee:
- United States of America as represented by United States (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:
- AC06-76FF02170
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- nuclear; reactor; spacer; grid; ductless; core; component; relates; liquid; cooled; employing; plurality; egg-shell; type; constructed; walls; cell; formed; single; thickness; metal; avoid; tolerance; hydraulic; spring; laterally; constrains; material; bearing; rod; passes; hardstop; response; coolant; flow; suitable; water; components; avoids; length; duct; providing; sleeves; sodium; tubes; passing; locations; maintaining; predetermined; space; adjacent; core component; nuclear reactor; coolant flow; cooled nuclear; spacer grid; nuclear material; water cooled; liquid cooled; tubes passing; reactor space; reactor spacer; material bearing; tubes pass; ductless core; /376/976/
Citation Formats
Christiansen, David W, and Karnesky, Richard A. Nuclear reactor spacer grid and ductless core component. United States: N. p., 1989.
Web.
Christiansen, David W, & Karnesky, Richard A. Nuclear reactor spacer grid and ductless core component. United States.
Christiansen, David W, and Karnesky, Richard A. Sun .
"Nuclear reactor spacer grid and ductless core component". United States. https://www.osti.gov/servlets/purl/866905.
@article{osti_866905,
title = {Nuclear reactor spacer grid and ductless core component},
author = {Christiansen, David W and Karnesky, Richard A},
abstractNote = {The invention relates to a nuclear reactor spacer grid member for use in a liquid cooled nuclear reactor and to a ductless core component employing a plurality of these spacer grid members. The spacer grid member is of the egg-shell type and is constructed so that the walls of the cell members of the grid member are formed of a single thickness of metal to avoid tolerance problems. Within each cell member is a hydraulic spring which laterally constrains the nuclear material bearing rod which passes through each cell member against a hardstop in response to coolant flow through the cell member. This hydraulic spring is also suitable for use in a water cooled nuclear reactor. A core component constructed of, among other components, a plurality of these spacer grid members, avoids the use of a full length duct by providing spacer sleeves about the sodium tubes passing through the spacer grid members at locations between the grid members, thereby maintaining a predetermined space between adjacent grid members.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}