Published November 22, 1991 | Version v1
Patent Metadata-only

Method of monitoring injury of external tube in double walled tube steam generator

Creators

Description

The present invention concerns a method of monitoring injuries of an external tube of a double-walled tube steam generator used in an FBR type reactor. When the external tube of the double-walled heat transfer tube is failed, helium gases flown and dissolved in sodium in the gap of the double-walled heat transfer tube are formed as gas bubbles. Injuries of the external tube of the double walled heat transfer tube are monitored by detecting the bubbles as a change of impedance of a solenoid type detection coils at the outer circumference of a bypass conduit. With such procedures, continuous monitoring can be conducted. (I.N.)

Availability note (English)

Available from JAPIO. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
4 p.
IPC:
Int. Cl. G21C17/02; G21C17/003.
IPC
Int. Cl. G21C17/02; G21C17/003.
Patent number
JP patent document 3-262996/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
23059680
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BYPASSES; FAILURES; LMFBR TYPE REACTORS; PIPELINES; REACTOR MAINTENANCE; STEAM GENERATORS; VOIDS
Descriptors DEC
BOILERS; BREEDER REACTORS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; LIQUID METAL COOLED REACTORS; MAINTENANCE; REACTORS; VAPOR GENERATORS

Optional Information

Secondary number(s)
JP patent application 2-63458.