Vessel of a nuclear reactor, including means for holding its low

Details Vessel of a nuclear reactor, including means for holding its low Vessel of a nuclear reactor, including means for holding its low

1995-03-15

1996-08-27

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Core restraint means

376461, 376303, 376453, G21C 900

Patent

active

055508839

ABSTRACT:
The vessel of the nuclear reactor includes at least three assemblies (22) distributed around the periphery of the core support plate (25), each comprising a key (26) fixed to the inner surface of the wall (21) of the vessel at the core support plate (25) and a cut-out (29) in the external edge of the core support plate (25) and open towards the outside in order to receive, with a clearance, an end part (30) of the key (26). The cut-out (29) includes an upper surface (29d) perpendicular to the axis of the wall (21) of the vessel and of the lower internals (23), which is machined in the core support plate (25) in order to retain the internals (23) in the event of a drop. A keyhole slot (28) is fixed inside the cut-out (29). In order to carry out the adjustment of the dimensions of the keyhole slot (28), a standard keyhole slot may be used, equipped with distance measurement sensors in order to obtain the desired clearances between the key (26) and the keyhole slot (28).

REFERENCES:
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patent: 4080255 (1978-03-01), Rylatt
patent: 4135974 (1979-01-01), Garkisch et al.
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patent: 4657730 (1987-04-01), Blaushild et al.
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patent: 4752436 (1988-06-01), Snyder
patent: 4756877 (1988-07-01), Veronesi et al.
patent: 5257295 (1993-10-01), Chevereau et al.

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