Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within...
Patent
1988-12-15
1990-09-04
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
376204, 29428, 29890031, G21C 1306, B21D 5300
Patent
active
049543121
ABSTRACT:
A system and method for installing a nozzle dam unit (26) in a nuclear steam generator having a head (12) including a head internal surface, a manway (14) penetrating the head, and a nozzle (16) penetrating the head. The system comprises a manipulator (76) adapted to be passed through the manway and having one end (82) adapted to be attached remotely to the head internal surface and a free end including a clamp member (104). A plurality of nozzle dam segments (54, 56, 58) are each sized to pass through the manway and carry means thereon (120) for engaging at least one other segment, the segments when fully engaged to each other forming a dam subassembly sized to pass into and seat against the nozzle. The manipulator is controlled so that the clamp member grasps and supports one of the dam segments within the head until the subassembly is formed within the head, and then is translated within the head until the dam subassembly seats within the nozzle.
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Brochure-"Titan 7F Manipulator System", Schilling Development, Davis, CA, (no date).
McDonald Francis X.
Schukei Glen E.
Weisel Eric M.
Combustion Engineering Inc.
Wasil Daniel D.
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