Reactor vessel cavity seal plate
In a nuclear reactor vessel installation where there is an annular cavity between a reactor vessel having a flange extending radially therefrom and a reactor shield structure, a reactor vessel cavity seal plate, said seal plate is described comprising: (a) an annular plate formed from a plurality of unattached segments positioned adjacent each other, said annular plate having a plurality of ports spaced around its circumference; (b) an inner spacer ring attached to the inner diameter of said annular plate and resting freely upon the reactor vessel flange; (c) an outer spacer ring attached adjacent the outer diameter of said annular plate and resting upon the reactor shield structure; (d) an annular seal formed from a plurality of sections welded together such that said annular seal rests upon said annular plate and extends beyond the inner and outer diameter of said annular plate; (e) an inner seal ring attached to the inner diameter of said annular seal and sealingly attached to the reaction vessel flange; (f) an outer seal ring attached to the outer diameter of said annular seal and sealingly attached to the reactor shield structure; and (g) means for removably covering and sealing the ports in said annular plate.
- Assignee:
- B and W Nuclear Service Co., Lynchburg, VA (United States)
- Patent Number(s):
- US 5230860; A
- Application Number:
- PPN: US 7-875957
- OSTI ID:
- 6335537
- Resource Relation:
- Patent File Date: 30 Apr 1992
- Country of Publication:
- United States
- Language:
- English
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