G - Physics – 21 – C
Patent
G - Physics
21
C
359/38
G21C 15/18 (2006.01) G21C 1/00 (2006.01) G21C 13/00 (2006.01) G21C 1/08 (2006.01) G21C 9/02 (2006.01)
Patent
CA 1318042
ABSTRACT OF THE DISCLOSURE The subject-matter of the invention is an intrinsic-safety nuclear reactor of the pressurized water type, having a reactor vessel equipped with a core, a lower header and an upper header, at least one heat exchanger with a secondary fluid, means of hydraulic connection between said headers and said heat exchanger and at least one circulation pump; a pressurized container surrounding the reactor vessel and which defines a tank full of a cold, neutron-absorbing liquid; and pipes allowing communication between the lower area of the tank and the lower header of the vessel, as well as pipes allowing communication between the upper area of the vessel and the upper header, in which the pressure drop in the primary fluid across the core is substantially equal to the difference in head between the cold column of the tank and the hot column of the vessel. According to the invention, the pressurized container is immersed in a pool containing a neutron-absorbing liquid at atmospheric pressure. Furthermore, the wall of the vessel is insulated, while the wall of the container has no insulation, so as to achieve the greatest possible heat exchange between the wall and the water of the surrounding pool.
609323
Ansaldo S.p.a.
Robic
LandOfFree
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