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US 5,850,423 AGranted
Nuclear rector vessel with nozzle plug
AssigneeWestinghouse Electric Corp.
InventorsEdward J. Rusnica, Jr., Daniel E. Klinvex, Donald E. Skoczylas
Life of this patent
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Abstract
A nuclear reactor vessel has a nozzle plug in its cold leg and hot leg nozzles for isolating the reactor vessel from the balance of the reactor coolant loop. The nozzle plug is mechanically compression fitted with the nozzle without the need for hydraulic or pneumatic actuation. The plug has a primary seal ring compressed against the inner wall of the nozzle and a secondary seal ring compressed against the end wall of the nozzle for withstanding a pressure differential of about 34 feet of water.
Claims6
A nuclear reactor vessel having:
- a horizontally disposed nozzle, the nozzle having an inner circumferential wall and an end wall substantially perpendicular thereto, and a nozzle plug in the nozzle, the plug having a first mechanically compressible seal ring for sealing the plug against the circumferential wall in the nozzle and a second mechanically compressible seal ring for sealing the plug against the end wall while the first mechanically compressible seal ring is sealed against the circumferential wall.
Dependencies are inferred from the claim text.