Fuel assemblies
Description
Purpose: To improve the strength and prevent interference between adjacent fuel assemblies in PWR type reactors, by providing reinforcing materials in specified arrangement and forming guide parts to the lattice outer plate at the corner of a fuel rack. Constitution: A solid rod as the reinforcing material strong enough to reinforce fuel assemblies is inserted in the axial direction of the fuel assemblies through the corner cell of a fuel rack and secured at the upper end to the upper nozzle and at the lower end to the lower nozzle. Guide parts are formed to the upper and/or lower edges of the outer plate at the corner of the fuel rack in order to prevent the adjacent fuel assemblies from meshing due to their contact. The solid rod functions as the structural material to increase the strength of the fuel assemblies and prevent them from bending. (Moriyama, K.)
Availability note (English)
Available from JAPATIC. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 4 p.
- IPC:
- Int. Cl. G21C3/34.
- IPC
- Int. Cl. G21C3/34.
- Patent number
- JP patent document 56-87894/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 13703501
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- BUILDUP; BWR TYPE REACTORS; FLEXURAL STRENGTH; FUEL ASSEMBLIES; FUEL RACKS; FUEL RODS; PWR TYPE REACTORS; SAFETY
- Descriptors DEC
- FUEL ELEMENTS; MECHANICAL PROPERTIES; MECHANICAL STRUCTURES; REACTOR COMPONENTS; REACTORS; SUPPORTS; WATER COOLED REACTORS; WATER MODERATED REACTORS