Published February 12, 1982 | Version v1
Patent Metadata-only

Fast breeder reactor

Creators

Description

Purpose: To enable rapid maintenance, inspection and repair of a fast breeder reactor immediately after its operation is stopped. Constitution: Sodium in an overflow tank is fed by a pump to a sodium purification system formed of a cold trap and a heat exchanger, the temperature of the cold trap is maintained at a specified temperature, and the sodium is purified. When it is necessary to approach the cold trap, its temperature is gradually raised while circulating the sodium through the cold trap. Since 131I removed by the cold trap is dissolved in this manner, the sodium in the cold trap is drained to a shielded tank, and the radiation dosage around the cold trap can be reduced. (Sekiya, K.)

Availability note (English)

Available from JAPATIC. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
4 p.
IPC:
Int. Cl. G21C19/30; C22B26/10.
IPC
Int. Cl. G21C19/30; C22B26/10.
Patent number
JP patent document 57-26789/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
14780130
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
COLD TRAPS; DECONTAMINATION; FBR TYPE REACTORS; HEAT EXCHANGERS; IODINE 131; MAINTENANCE; PRIMARY COOLANT CIRCUITS; PUMPS; REPAIR; SODIUM
Descriptors DEC
ALKALI METALS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BREEDER REACTORS; CLEANING; COOLING SYSTEMS; DAYS LIVING RADIOISOTOPES; ELEMENTS; EPITHERMAL REACTORS; EQUIPMENT; FAST REACTORS; INTERMEDIATE MASS NUCLEI; IODINE ISOTOPES; ISOTOPES; METALS; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; TRAPS