Nuclear reactor installation with a core catcher device and meth

Details Nuclear reactor installation with a core catcher device and meth Nuclear reactor installation with a core catcher device and meth

1993-06-21

1994-08-30

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Core catchers

376289, 376298, G21C 1518, G21C 9016

Patent

active

053435060

ABSTRACT:
A nuclear reactor installation includes a reactor pressure vessel and a reactor core in the reactor pressure vessel. A supporting and protective structure supporting the reactor pressure vessel and surrounding the reactor pressure vessel on the bottom and laterally, has a bottom region and a circumferential wall. A core catcher device for the reactor core has a collecting basin for a core melt being installed below the reactor pressure vessel. The collecting basin has a bottom wall and a jacket wall being respectively separated from the bottom region and the circumferential wall of the supporting and protective structure by a spacing gap. Cooling channels are disposed in the spacing gap at the bottom wall and the jacket wall for exterior cooling of the collecting basin with a cooling liquid. Turbulence bodies are disposed in a surface region of the bottom wall for generating a turbulent flow of the cooling liquid flowing from the inside to the outside over the bottom wall toward the jacket wall. There is also a method for starting and maintaining exterior cooling of a core catcher device of a nuclear reactor installation.

REFERENCES:
patent: 3607630 (1969-08-01), West et al.
patent: 4003785 (1977-01-01), Rau et al.
patent: 4342621 (1982-08-01), Keating, Jr.
patent: 4442065 (1984-04-01), Latter et al.

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