Chemical cleaning of a steam generator during mode 5 generator shut down
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United States of America Patent
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-
Dec 4, 2007
Grant Date -
Mar 30, 2006
app pub date -
Aug 27, 2005
filing date -
Sep 29, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A Nuclear Steam Supply Stem (NSSS) Mode 5 Steam Generator Chemical Cleaning system is disclosed which applies chemical cleaning solvent (formulated to remove SG deposits) to the secondary side of the SG using primary side supplied heat during NSS Mode 5 shutdown to maintain the desired application temperature. Mixing is achieved via nitrogen sparging.
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