Container for the collection and spreading of core melt and a nuclear power plant with such a container
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United States of America Patent
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Feb 12, 2002
Issued Date -
N/A
app pub date -
Jun 7, 1999
filing date -
Dec 5, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The container collects and spreads core melt in a nuclear power plant. The container has a structured bottom, particularly a cartridge-like bottom. The bottom has a material of good thermal conductivity, a plurality of geodetically highest points and a plurality of geodetically lowest points (5) and an outer wall. The outer wall extends with an upward slope between a geodetically lowest point and an adjacent geodetically highest point. A steam conduit which runs through the container interior is provided at each geodetically highest point. The container allows external cooling of core melt. As a result, the formation of radioactive aerosols, the occurrence of a steam explosion and the formation of hydrogen are avoided. In addition, the cooling is made particularly effective by the upward slope of the outer wall since the formation of a spatially fixed steam region, which is associated with a decrease in thermal conductivity, is prevented. The invention furthermore relates to a nuclear power plant with a container for the collection and spreading of core melt.
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