Nuclear reactor containment arrangement with permanent cavity se

Details Nuclear reactor containment arrangement with permanent cavity se Nuclear reactor containment arrangement with permanent cavity se

1988-11-14

1990-02-27

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

376260, 376263, 376287, G21C 1900, G21C 1100

Patent

active

049052608

ABSTRACT:
An annular seal ring between a reactor pressure vessel and a containment wall is disposed in an annular expansion gap therebetween, having a support ring and inner and outer upwardly extending cylindrical sections. The inner cylindrical section is disposed below a flange on the reactor and has a flexible seal therebetween, while the outer cylindrical section terminates substantially parallel and spaced from a shelf in the containment wall with a flexible seal therebetween. The annular seal ring is supported by radial support beams, while support rods depending from the support ring position neutron shielding material in the annular expansion gap. Manways and ports provide access to the gap and thermal insulation is provided below the neutron shielding material to direct cooling air from the annular gap up through opened manway and port.

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