Societe Technique Pour L'energie Atomique

Societe Technique Pour L'energie Atomique Technicatome

Laurent Candillier

Michel Brun

Frédéric Costantini

Lorrain Demas

Jean-Yves Charcosset

Michel Felziere

Frederic Costantini

Phillipe Parraud

A nuclear reactor vessel includes a shell () having a wall () traversed by at least one passage () having a central axis (C) and a valve () mounted in the passage (), the valve () having a determined outer cross-section. The passage () has an inner end segment () that opens into the inner volume () and an outer end segment () that opens into an outer piping (), the valve () being housed in the inner end segment (). The valve () is capable of being extracted from the passage () through the inside of the vessel (). The outer end segment () has at least one portion having an inner cross-section, perpendicular to the central axis (C), that is smaller than the outer cross-section of the valve (), such that the valve () cannot be ejected out of the vessel ().

Nuclear reactor and nuclear reactor vessel equipped with non-ejectable valve

A nuclear reactor includes a vessel incorporating at least one primary power heat exchanger for cooling the primary liquid of the nuclear reactor during the normal operation of the reactor and at least one primary passive safety heat exchanger for cooling the primary liquid of the nuclear reactor in the event of a malfunction in the normal cooling of the primary liquid of the reactor. The vessel includes a compartment arranged in the thickness thereof, wherein the primary passive safety heat exchanger is at least partially contained inside the compartment.

Nuclear reactor integrating a safety primary heat exchanger

Growing community of inventors

Simiane, France

Laurent Candillier