Nuclear reactor alignment plate configuration
Abstract
An alignment plate that is attached to a core barrel of a pressurized water reactor and fits within slots within a top plate of a lower core shroud and upper core plate to maintain lateral alignment of the reactor internals. The alignment plate is connected to the core barrel through two vertically-spaced dowel pins that extend from the outside surface of the core barrel through a reinforcement pad and into corresponding holes in the alignment plate. Additionally, threaded fasteners are inserted around the perimeter of the reinforcement pad and into the alignment plate to further secure the alignment plate to the core barrel. A fillet weld also is deposited around the perimeter of the reinforcement pad. To accomodate thermal growth between the alignment plate and the core barrel, a gap is left above, below and at both sides of one of the dowel pins in the alignment plate holes through with the dowel pins pass.
- Inventors:
- Issue Date:
- Research Org.:
- Westinghouse Electric Company LLC, Cranberry Township, PA, USA
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1117865
- Patent Number(s):
- 8638900
- Application Number:
- 11/855,196
- Assignee:
- Westinghouse Electric Company LLC (Cranberry Township, PA)
- 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:
- FC07-05ID14636
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2007 Sep 14
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
Citation Formats
Altman, David A, Forsyth, David R, Smith, Richard E, and Singleton, Norman R. Nuclear reactor alignment plate configuration. United States: N. p., 2014.
Web.
Altman, David A, Forsyth, David R, Smith, Richard E, & Singleton, Norman R. Nuclear reactor alignment plate configuration. United States.
Altman, David A, Forsyth, David R, Smith, Richard E, and Singleton, Norman R. Tue .
"Nuclear reactor alignment plate configuration". United States. https://www.osti.gov/servlets/purl/1117865.
@article{osti_1117865,
title = {Nuclear reactor alignment plate configuration},
author = {Altman, David A and Forsyth, David R and Smith, Richard E and Singleton, Norman R},
abstractNote = {An alignment plate that is attached to a core barrel of a pressurized water reactor and fits within slots within a top plate of a lower core shroud and upper core plate to maintain lateral alignment of the reactor internals. The alignment plate is connected to the core barrel through two vertically-spaced dowel pins that extend from the outside surface of the core barrel through a reinforcement pad and into corresponding holes in the alignment plate. Additionally, threaded fasteners are inserted around the perimeter of the reinforcement pad and into the alignment plate to further secure the alignment plate to the core barrel. A fillet weld also is deposited around the perimeter of the reinforcement pad. To accomodate thermal growth between the alignment plate and the core barrel, a gap is left above, below and at both sides of one of the dowel pins in the alignment plate holes through with the dowel pins pass.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {1}
}