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Title: Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle

Abstract

This patent describes an apparatus in a fuel bundle for confining fuel rods for the generation of steam in a steam water mixture passing interior of the fuel bundle. The fuel bundle includes: a lower tie-plate for supporting the fuel rods and permitting flow from the lower exterior portion of the fuel bundle into the interior portion of the fuel bundle; a plurality of fuel rods. The fuel rods supported on the lower tie-plate extending upwardly to and towards the upper portion of the fuel bundle for the generation of steam in a passing steam and water mixture interior of the fuel bundle; an upper tie-plate for maintaining the fuel rods in side-by-side relation and permitting a threaded connection between a plurality of the fuel rods with the threaded connection being at the upper and lower tie-plate. The upper tie-plate permitting escape of a steam water mixture from the top of the fuel bundle; a fuel bundle channel; and a labyrinth seal configured in the lower tie-plate.

Inventors:
Publication Date:
OSTI Identifier:
7177034
Patent Number(s):
US 4889684; A
Application Number:
PPN: US 7-226482A; TRN: 90-013972
Assignee:
General Electric Co., San Jose, CA
Resource Type:
Patent
Resource Relation:
Patent File Date: 1 Aug 1988
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; FUEL ELEMENT CLUSTERS; DUCTS; FUEL RODS; HYDRAULICS; PLATES; SEALS; SUPPORTS; THREADED JOINTS; FLUID MECHANICS; FUEL ASSEMBLIES; FUEL ELEMENTS; JOINTS; MECHANICAL STRUCTURES; MECHANICS; REACTOR COMPONENTS; REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; 210100* - Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled

Citation Formats

Johansson, E B. Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle. United States: N. p., 1989. Web.
Johansson, E B. Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle. United States.
Johansson, E B. 1989. "Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle". United States.
@article{osti_7177034,
title = {Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle},
author = {Johansson, E B},
abstractNote = {This patent describes an apparatus in a fuel bundle for confining fuel rods for the generation of steam in a steam water mixture passing interior of the fuel bundle. The fuel bundle includes: a lower tie-plate for supporting the fuel rods and permitting flow from the lower exterior portion of the fuel bundle into the interior portion of the fuel bundle; a plurality of fuel rods. The fuel rods supported on the lower tie-plate extending upwardly to and towards the upper portion of the fuel bundle for the generation of steam in a passing steam and water mixture interior of the fuel bundle; an upper tie-plate for maintaining the fuel rods in side-by-side relation and permitting a threaded connection between a plurality of the fuel rods with the threaded connection being at the upper and lower tie-plate. The upper tie-plate permitting escape of a steam water mixture from the top of the fuel bundle; a fuel bundle channel; and a labyrinth seal configured in the lower tie-plate.},
doi = {},
url = {https://www.osti.gov/biblio/7177034}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 26 00:00:00 EST 1989},
month = {Tue Dec 26 00:00:00 EST 1989}
}