Device and method for collecting and cooling reactor-meltdown pr

Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Core catchers

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376284, G21C 9016

Patent

active

058675485

ABSTRACT:
A device for collecting and cooling reactor-meltdown products from a reactor pressure vessel includes an antechamber disposed below the reactor pressure vessel and an expansion chamber for the reactor-meltdown products. A channel which is disposed between the antechamber and the expansion chamber has a partition being destructible by the reactor-meltdown products. A closure element which connects a coolant reservoir to the expansion chamber is destructible by the reactor-meltdown products. A method for collecting and cooling reactor-meltdown products from a reactor pressure vessel includes collecting reactor-meltdown products in an antechamber disposed below the reactor pressure vessel and keeping them in the antechamber for a predetermined time interval. A partition disposed between the antechamber and an expansion chamber is destroyed with the reactor-meltdown products. The reactor-meltdown products penetrate from the antechamber into the expansion chamber and are spread in the expansion chamber. A closure element is destroyed with the reactor-meltdown products in the expansion chamber, for connecting a coolant reservoir to the expansion chamber and permitting coolant to flow into the expansion chamber where it cools the reactor-meltdown products.

REFERENCES:
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patent: 5343505 (1994-08-01), Serviere
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patent: 5402456 (1995-03-01), Schabert et al.
patent: 5415625 (1995-05-01), Turricchia
Swedish Patent Abstract No. SE A 8 004 988, (Norman), Jun. 1981.
Publ. Icenes 89 (von Mollendorf et al.), pp. 19-24, "Emerging Nuclear Energy Systems 1989", Jul. 1989.

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