Nuclear reactor with passive means of adjusting the pH of post accident water
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United States of America Patent
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Mar 15, 1994
Grant Date -
N/A
app pub date -
Jun 7, 1993
filing date -
Jun 7, 1993
priority date (Note) -
Expired
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Abstract
A nuclear reactor has a passive system for adjusting the pH of post accident water in the containment vessel. A basic liquid is stored in the containment vessel at an elevation above the maximum post accident water level. When radiation levels in the containment vessel exceed a predetermined, normal level the basic liquid is gravitationally drained into sumps located in the containment vessel below the maximum post accident water level where it mixes with emergency core cooling system water, raising the pH of the water to about 7.
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