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US 5,000,907 AGranted
Nuclear reactor with emergency cooling water injection device
AssigneeFramatome
InventorsGerard Chevereau, Claude Cauquelin, Claude Falduti
Life of this patent
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Abstract
A nuclear reactor is provided with an emergency cooling water injection device, comprising a vessel through which pass not only the cooling water inlet and outlet pipes under normal operating conditions but also a conduit for injecting pressurized water coming by an emergency reservoir, should a breakage of the primary circuit occur. A thermally insulated duct of the side wall of the vessel, at least at the level of the core, conveys the injected water below the core support plate.
Claims9
Pressurized water nuclear reactor comprising :
- a vessel closed by a cover, having cooling water inlet and outlet nozzles
- at least one conduit for injecting pressurized water coming from an emergency reservoir, opening into the vessel at the same level as at or above the level of said nozzles;
- internals suspended from the vessel, having a plate supporting a reactor core and forming, with the side wall of the vessel, an annular downward water flow passage from the inlet nozzle to a distribution space below the core support plate;
- and
- a duct extending the conduit downwards, thermally insulated from a side wall of the vessel, at least over the height of the core, and opening into the distribution space below the core support plate.
2 more elements
Pressurized water nuclear reactor comprising :
- a vessel closed by a cover, having cooling water inlet and outlet nozzles
- at least one conduit for injecting pressurized water coming from an emergency reservoir, opening into the vessel at the same level as at or above the level of said nozzles;
- internals suspended from the vessel, having a plate supporting a reactor core and forming, with the side wall of the vessel an annular downward water flow passage from the inlet nozzle to a distribution space below the core support plate;
- and
- a duct extending the conduit downwards, thermally insulated from a side wall of the vessel, at least over the height of the core, and opening, into the distribution space below the core support plate located within said downward water flow passage at a distance from the lateral wall of the vessel.
2 more elements
Dependencies are inferred from the claim text.