G - Physics – 21 – C
Patent
G - Physics
21
C
359/64
G21C 15/02 (2006.01) G21C 1/03 (2006.01) G21C 15/24 (2006.01)
Patent
CA 1184322
ABSTRACT OF THE DISCLOSURE Nuclear reactor cooled by a liquid metal comprising a main vessel sealed by a sealing slab, said vessel containing liquid metal overhung by a covering of inert gas, the reactor core being placed in a primary vessel integrated into the main vessel in such a way that the primary vessel at the outlet from the core constitutes a hot collector for the liquid metal and the space defined between the main vessel and the primary vessel constitutes a cold collector for the liquid metal, at least one heat exchanger supplied by the liquid metal contained in the hot collector under the action of at least primary pumps located in the main vessel, wherein the exchanger is positioned outside the main vessel at a level above that of the sealing slab and communicates with the hot collector by at least one intake pipe and with the cold collector by at least one outlet pipe, it being possible to empty the exchanger and pipes into the main vessel by gravity, the upper part of each exchanger being filled with the inert gas covering of the main vessel by at least one gas pressure balancing pipe in which is arranged at least one valve closed under normal operating conditions, the inert gas covering of the main vessel being pressurized in such a way that the exchanger is filled with liquid metal by counter- pressure, the opening of the said valve controlling the emptying of the exchanger and the corresponding intake and outlet pipes into the main vessel.
381105
Electricite de France - Service National
Goudreau Gage Dubuc
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