Laterally translating permanent seal ring for a nuclear reactor

Details Laterally translating permanent seal ring for a nuclear reactor Laterally translating permanent seal ring for a nuclear reactor

1990-07-26

1994-06-21

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

376205, G21C 1300

Patent

active

053234278

ABSTRACT:
A nuclear reactor containment arrangement has a permanent seal ring across the thermal expansion gap defined by the reactor vessel wall and the containment wall. The seal ring allows for lateral translation of the reactor vessel, in addition to radial and axial expansion and contraction. The seal ring features an outer attachment arrangement characterized by a radially corrugated cylinder extending vertically between two annular Belleville plates having different diameters. The corrugations of the cylinder extend longitudinally between the cylinder edges, and flex during lateral movement of the reactor vessel relative to the containment wall. The Belleville plates accommodate axial expansion and contraction of the vessel, and an inner attachment arrangement accommodates radial expansion and contraction.

REFERENCES:
patent: 4170517 (1979-10-01), Meuschke
patent: 4747993 (1988-05-01), Hankinson et al.
patent: 4904442 (1990-02-01), Swidwa et al.
patent: 5230860 (1993-07-01), Behnke et al.

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