Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Corrosion or damage prevention
Reexamination Certificate
2007-12-17
2011-11-08
Keith, Jack (Department: 3663)
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Corrosion or damage prevention
C376S306000
Reexamination Certificate
active
08054933
ABSTRACT:
An injection system designed to deliver a chemical solution into a reactor through feedwater system taps during normal operating condition of a power reactor is disclosed. The process of delivery is via positive displacement pumps. Injection of chemical is in a concentrated solution form, which is internally diluted by the system prior to discharging from the skid. The injection system minimizes chemical loss due to deposition on the transit line, enables a higher concentrated solution to be used as the injectant, eliminates the time consuming laborious process of chemical dilution, raises chemical solution to the pressure required for injection, prevents solid precipitations out of solution at the injection pump head through the use of a flush solution, and deposits fresh chemical on new crack surfaces that develop during a power reactor start-up, shutdown and operation.
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Diaz Thomas P.
Hettiarachchi Samson
Shu Paul Y.
Siegwarth David P.
Tran Luong Cam
GE-Hitachi Nuclear Energy Americas LLC
Keith Jack
Leach Erin M
Nixon & Vanderhye P.C.
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