Assembling method for nuclear reactor fuel assembly
Description
Control rod guide tubes are inserted and assembled in to predetermined openings of a plurality of support lattices arranged in rows at predetermined distance. Sheath heaters are inserted to the guide tubes. The sheath heater comprises a plurality of heater elements therein which are connected to a temperature controller. The temperature of each portion of the sheath heater is controlled by the temperature controller. When the temperature of each portion of the guide tube is made uniform, MOX fuel rods are inserted to vacant openings of the support lattices. This changes the circumferential temperature of the guide tube, but the heat generation amount of each heater element is controlled suitably by the temperature controller. Accordingly, even if MOX fuel rods are inserted as a heat generation member, fuel assembly can be assembled with no assembling errors. (I.N.)
Availability note (English)
Available from JAPIO. Also available from EPO.Additional details
Publishing Information
- Imprint Pagination
- 5 p.
- IPC:
- Int. Cl. G21C21/00.
- IPC
- Int. Cl. G21C21/00.
- Patent number
- JP patent document 8-36088/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 27063071
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CONTROL ELEMENTS; FASTENING; FUEL ASSEMBLIES; FUEL RODS; GUIDE TUBES; HEATERS; MIXED OXIDE FUELS; PWR TYPE REACTORS; SUPPORTS; TEMPERATURE CONTROL
- Descriptors DEC
- CONTROL; ENERGY SOURCES; ENRICHED URANIUM REACTORS; FABRICATION; FUEL ELEMENTS; FUELS; JOINING; MATERIALS; MECHANICAL STRUCTURES; NUCLEAR FUELS; POWER REACTORS; REACTOR COMPONENTS; REACTOR MATERIALS; REACTORS; SOLID FUELS; THERMAL REACTORS; TUBES; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Secondary number(s)
- JP patent application 6-174028.