Published December 12, 1990 | Version v1
Patent Metadata-only

Method and apparatus for sensing obstructions in a nuclear fuel rod

Creators

Description

A method and apparatus of sensing obstructions in a tubular nuclear fuel rod comprises positioning a nozzle to engage one end of the fuel rod in an air tight sealed relationship, passing a first gas from source through the nozzle and then into and through the fuel rod and sensing the back pressure at the nozzle. This is compared with a standardised pressure provided by a further source adjusted with variable restriction. The standardised pressure is obtained initially using an unblocked rod of the type to be checked. A high pressure source is provided to clear loose obstructions. (author)

Availability note (English)

Available from The Patent Office, Sales Branch, St Mary Cray, Orpington, Kent BR5 3RD.

Additional details

Publishing Information

Imprint Pagination
12 p.
IPC:
Int. Cl. G01m 19/00.
IPC
Int. Cl. G01m 19/00.
Patent number
GB patent document 2232491/A/

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
22060596
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ALARM SYSTEMS; FLOW BLOCKAGE; HOLLOW FUEL RODS; LEAKS; NOZZLES; PRESSURE DROP; SAFETY ENGINEERING; SEALS; SPECIFICATIONS; ZIRCONIUM ALLOYS
Descriptors DEC
ALLOYS; FUEL ELEMENTS; FUEL RODS; REACTOR COMPONENTS

Optional Information

Secondary number(s)
US priority 353266.