Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Pressure suppression and relief
Patent
1989-08-04
1990-05-22
Wasil, Daniel
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Pressure suppression and relief
376309, 261126, G21C 900
Patent
active
049275968
ABSTRACT:
A self-actuating passive pressure relief device for nuclear reactor containments is described. The pressure relief device passively releases gases from within a reactor containment when the containment pressure exceeds a designated threshold pressure. The pressure relief device automatically reseals itself when the containment pressure drops below the threshold pressure. Any containment gases that are vented by the pressure relief device from the containment are scrubbed and cleansed before they are released into the atmosphere. To accomplish this, a sealed fluid chamber is placed in direct communication with the reactor containment for holding a liquid material such as water. A standpipe having its lower end extend into the sealed container and has an opening below the normal operating liquid level within the chamber. The standpipe acts as a manometer and the liquid level within the sealed chamber is arranged such that when the threshold pressure is reached, the liquid level will fall below an opening in the standpipe thereby allowing containment gases to vent into the standpipe. The vented gases travel upward through the liquid-filled standpipe which serves to scrub the released gases. Steam within the containment gases is condensed and recirculated during prolonged releases, condensed steam is drained back into the containment.
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Electric Power Research Institute Inc.
Wasil Daniel
LandOfFree
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