Method and apparatus for detecting deflect in liquid metal handling instruments
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United States of America Patent
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-
May 13, 1980
Grant Date -
N/A
app pub date -
Dec 29, 1978
filing date -
Jan 12, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and apparatus for detecting the position of defects in a liquid metal handling instruments such as sodium-heated steam generator, which has a conduit structure invisible from the outside of the instrument. The conduit structure, which is used in a liquid metal, is positioned in a vessel filled with an inert gas. The vessel is sealed whereas a liquid inactive to the liquid metal is filled in the conduit structure. If there exists a defective spot in the conduit structure, the liquid will flow out of the defective spot, which is exactly detected by application of a fiber scope.
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