Nuclear reactor internals with cluster guides
AssigneeFramatome
InventorsJacques Baujat, Gerard Chevereau
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Abstract
Internal equipments suitable for use in a nuclear reactor comprise a lower plate provided with openings for the coolant leaving the core, an upper plate, support columns connecting the plates together and guides for the vertically movable control clusters. Each guide has an upper section fixed to the upper plate and a lower section extending between the upper and lower plates. The lower section (32) comprises a base bearing on a frusto-conical seat fast with the lower plate and is subjected to the action of resilient means exerting a force pressing the base on the seat.
Claims8
In a nuclear reactor having a core, internals mounted over said core, comprising:
- a lower plate provided with openings for coolant leaving the core;
- an upper plate;
- a plurality of support columns mutually connecting the plates;
- and a plurality of guides for vertically movable control clusters each of which comprises a plurality of parallel control rods, wherein each of said guides has an upper section securely fixed to the upper plate and a lower section extending between the upper and lower plates, wherein the lower section of each said guide has a base bearing on a respective frusto-conical bearing surface of a seat which is fast with said lower plate and wherein said lower section is subjected to the downward force of resilient means biasing said base onto said seat.
Dependencies are inferred from the claim text.