公开(公告)号：US20240312655A1

公开(公告)日：2024-09-19

申请号：US18361781

申请日：2023-07-28

申请人： TerraPower, LLC

发明人： Daniel R. Althouse ,  Nikolas Clark ,  Jeffrey Derenthal ,  Thomas Ekstrom ,  Victoria Graham ,  Joseph Heath ,  Matthew M. Mareka ,  Bryan W. Sardo ,  Nathan Smith ,  Zachariah Snyder ,  Olivera Ulicevic

IPC分类号： G21C19/26 ,  B25J9/10 ,  B25J13/08 ,  B25J15/00 ,  G21C19/105 ,  G21C19/16 ,  G21C19/18

CPC分类号： G21C19/26 ,  B25J9/102 ,  B25J13/085 ,  B25J15/0004 ,  B25J15/0047 ,  G21C19/105 ,  G21C19/16 ,  G21C19/18

摘要： An in-vessel fuel transfer machine may be permanently affixed to a nuclear reactor and remain in place during power operations. The in-vessel fuel transfer machine may include a pantograph machine that positions a grapple in order to access any fuel socket location within the core and move any of the core assemblies between the core, an in-vessel fuel storage area, and a fuel elevator. The grapple may be positioned through a combination of movements, such as, rotating a rotating plug assembly, rotating the in-vessel fuel transfer machine, extending the pantograph arms, and shuttling the grapple along a leg. The grapple may be compliant to accommodate deformed core assemblies and may be configured to pivot to more closely align to an eccentric core assembly handling socket or be moveable in a horizontal plane to accommodate a deformed core assembly during insertion or withdrawal.