Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle
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.
- Assignee:
- General Electric Co., San Jose, CA
- Patent Number(s):
- US 4889684; A
- Application Number:
- PPN: US 7-226482A; TRN: 90-013972
- OSTI ID:
- 7177034
- Resource Relation:
- Patent File Date: 1 Aug 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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