Low pressure reactor safety systems and methods
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United States of America Patent
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Oct 4, 2016
Grant Date -
Sep 26, 2013
app pub date -
Mar 21, 2012
filing date -
Mar 21, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A supplementary injection device is installed in a nuclear power plant to draw coolant and inject coolant using an entraining fluid. The injection device can be a venturi or other passive device operable at relatively low fluid pressure that draws coolant through suction at the venturi narrowing point and mixes the coolant with the fluid for injection. The injection device is operable with a known BWR design, where the device is attached to a steam connection to the main steam line of the reactor, a coolant connection drawing from suction lines to a suppression cool or condensate tank, and an outlet connection injecting into the main feedwater lines. In a BWR, the injection device is operable without electricity and at a wide range of pressures, even less than 50 pounds per square inch, to maintain coolant levels in the reactor.
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