Integrated heat exchangers for a nuclear reactor

With the aim of reducing the diameter of the vessel of a liquid sodium cooled nuclear reactor, the lower ends of the intermediate exchangers, placed vertically and entirely contained in the vessel, rest on the core support, on its periphery. These exchangers are connected to the secondary sodium systems by pipes crossing through the upper shield of the vessel, and the large revolving plug includes an opening of a size commensurate with the dimensions of the cross sections of the intermediate exchangers, placed at a distance from the rotation axis of the revolving plug, enabling this opening to be brought vertically over each heat exchanger in turn, by rotating the plug