Steam generator thermal venting
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United States of America Patent
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Issued Date -
Aug 12, 2010
app pub date -
Mar 25, 2004
filing date -
Mar 25, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a method of removing sludge deposits from steam generator/boiler tube support plates (TSP) using a combination of thermal stress and intermittent pressure pulses wherein the steam generator/boiler is drained to a water level just above a TSP identified as having excessive sludge deposits and/or particularly nonporous sludge known as collars and both thermal stress and high impact pressure pulses are used to dislodge the sludge and/or the collars with the process being repeated for all such TSP and the residue then flushed out by draining or using water lancing methods.
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