Method and apparatus for protecting the core of a nuclear reacto

Details Method and apparatus for protecting the core of a nuclear reacto Method and apparatus for protecting the core of a nuclear reacto

1974-08-01

1978-01-31

Behrend, Harvey E.

176 38, 176 61, G21C 900

Patent

active

040714039

ABSTRACT:
A method and apparatus for protecting fuel rods in a nuclear reactor core under conditions of a major break in the coolant inlet piping connected to the reactor inlet nozzle. A multi-venturi protector which includes multiple parallel dislosed venturies is mounted in the inlet nozzle. The characteristics of the venturi protector are such that coolant flow through the protector into the reactor is unimpeded, but reverse flow through the protector is restricted when a break occurs in the inlet piping. The resistance offered to such reverse flow permits reactor coolant and emergency core coolant to remain in contact with the reactor core for a time sufficient to allow the fuel rods to decrease in temperature to a low safe level.

REFERENCES:
patent: 3200045 (1965-08-01), Vendryes et al.
patent: 3258405 (1966-06-01), Silvers
patent: 3274065 (1966-09-01), Kierulf et al.
patent: 3287228 (1966-11-01), Gorker
patent: 3713969 (1973-01-01), Cahill, Jr.
patent: 3864209 (1975-02-01), Tong

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