Deep beam reactor vessel head and nuclear reactor including same

Induced nuclear reactions: processes – systems – and elements – Seal arrangements – Between pressure vessel cover and vessel or portion thereof

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220328, G21C 1306

Patent

active

046541853

ABSTRACT:
A deep beam head for a nuclear reactor and an improved reactor containing such a head where the upper horizontal support plate of a calandria in the reactor forms a sealing plate for the reactor vessel. The sealing plate has a ring member about the upper periphery thereof that is secured to the top of the pressure vessel cylindrical wall and reinforcing members extend across the sealing plate and are welded to the ring, while transverse cross-members extend across the sealing plate and are welded to the reinforcing members. The calandria may be removed from the reactor while attached to the ring member to provide ready access to the reactor internals.

REFERENCES:
patent: 2982713 (1961-05-01), Sankovich et al.
patent: 3192120 (1965-06-01), Campbell
patent: 3979016 (1976-09-01), Frater
patent: 4048766 (1977-09-01), Dantzer et al.
patent: 4524729 (1985-06-01), Hill, Jr. et al.

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