Nuclear reactor plant housed in a steel pressure vessel, with a

Details Nuclear reactor plant housed in a steel pressure vessel, with a Nuclear reactor plant housed in a steel pressure vessel, with a

1985-12-18

1988-02-16

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Auxiliary heat removal structure

165101, 376298, 376389, 376391, 376406, G21C 1518

Patent

active

047254009

ABSTRACT:
A nuclear reactor plant housed in a steel pressure vessel with a small high temperature reactor, together with a steam generator arranged over said reactor and with at least two circulating blowers connected in parallel with each other and following the steam generator in line and is provided with a decay heat removal system located in the primary loop. This system is arranged above the steam generator and a shut-off device is provided between the two component. The shut-off device, which may actuated both passively--by difference pressure--and actively, by means of a drive, is designed so that in normal operation no hot gas may enter the decay heat removal system. In the decay heat removal mode the hot gas is conducted into the decay heat removal system and the steam generator is closed off the hot gas. Simultaneously, the cold gas coming from the decay heat removal system is returned through the steam generator or a gas conduit parallel to it, to the reactor core. In the plant according to the invention the operating installations are rigorously separated from the installations serving the removal of decay heat, whereby a high degree of availability is obtained for the decay heat removal system.

REFERENCES:
patent: 2946732 (1960-07-01), Wootton
patent: 3802994 (1974-04-01), Forster et al.
patent: 4322268 (1982-03-01), Amtmann
patent: 4367194 (1983-01-01), Schenewerk et al.
patent: 4642214 (1987-02-01), Zhong
Vaughan, J. Br. Nucl. Energy Soc., 1975, 14, Apr., No. 2, 105-118.

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