Apparatus for draining lower drywell pool water into suppresion pool in boiling water reactor

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870389

Gluntz, Douglas M ^[1]

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1. San Jose, CA

An apparatus which mitigates temperature stratification in the suppression pool water caused by hot water drained into the suppression pool from the lower drywell pool. The outlet of a spillover hole formed in the inner bounding wall of the suppression pool is connected to and in flow communication with one end of piping. The inlet end of the piping is above the water level in the suppression pool. The piping is routed down the vertical downcomer duct and through a hole formed in the thin wall separating the downcomer duct from the suppression pool water. The piping discharge end preferably has an elevation at or near the bottom of the suppression pool and has a location in the horizontal plane which is removed from the point where the piping first emerges on the suppression pool side of the inner bounding wall of the suppression pool. This enables water at the surface of the lower drywell pool to flow into and be discharged at the bottom of the suppression pool.

• Research Organization: General Electric Co., Boston, MA (United States)
• DOE Contract Number: AC03-90SF18494
• Assignee: General Electric Company (San Jose, CA)
• Patent Number(s): US 5511102
• OSTI ID: 870389
• Country of Publication: United States
• Language: English

Related Subjects

apparatus
draining
drywell
pool
water
suppresion
boiling
reactor
mitigates
temperature
stratification
suppression
caused
hot
drained
outlet
spillover
formed
inner
bounding
wall
connected
flow
communication
piping
inlet
level
routed
vertical
downcomer
duct
separating
discharge
preferably
elevation
near
bottom
location
horizontal
plane
removed
emerges
enables
surface
discharged
horizontal plane
water level
water reactor
hot water
flow communication
boiling water
suppression pool
pool water
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