公开(公告)号：EP2625692B1

公开(公告)日：2019-02-20

申请号：EP11831173.7

申请日：2011-09-15

申请人： BWXT mPower, Inc. ,  BWXT Nuclear Operations Group, Inc.

发明人： SHARGOTS, Scott, J. ,  DESANTIS, Paul, K. ,  MCLAUGHLIN, John, P. ,  ALES, Mathew, W.

IPC分类号： G21C7/10 ,  G21C7/12 ,  G21C7/20 ,  G21C7/117

公开(公告)号：EP2839474B1

公开(公告)日：2018-07-25

申请号：EP13788268.4

申请日：2013-04-11

申请人： BWXT mPower, Inc.

发明人： EDWARDS, Tyler, A. ,  SHARGOTS, Scott, J.

IPC分类号： G21C1/32 ,  G21C13/02 ,  G21C13/028 ,  G21C15/00

CPC分类号： G21C13/028 ,  G21C1/322 ,  G21C13/02 ,  G21C13/04 ,  G21C15/00 ,  G21C15/02 ,  Y02E30/40

摘要： A riser cone has a lower end sized to engage a cylindrical lower riser section of a nuclear reactor and an upper end sized to engage a cylindrical upper riser section of the nuclear reactor. The riser cone defines a compression sealing ring that is compressed between the lower riser section and the upper riser section in the assembled nuclear reactor. In some embodiments the riser cone comprises: a lower element defining the lower end of the riser cone; an upper element defining the upper end of the riser cone; and a compliance spring compressed between the lower element and the upper element. In some embodiments the riser cone comprises a frustoconical compression sealing ring accommodating a reduced diameter of the upper riser section as compared with the diameter of the lower riser section.

公开(公告)号：EP2630644B1

公开(公告)日：2018-11-14

申请号：EP11834807.7

申请日：2011-09-21

申请人： BWXT mPower, Inc. ,  Ales, Mathew ,  Shargots, Scott J.

发明人： ALES, Mathew ,  SHARGOTS, Scott, J.

IPC分类号： G21C7/117 ,  G21C7/08 ,  G21C7/12

CPC分类号： G21C7/08 ,  G21C7/117 ,  G21C7/12 ,  G21C21/18 ,  G21Y2002/104 ,  Y02E30/39

摘要： A control rod guide frame comprises a self supporting stack of two or more columnar elements defining a central passage. The columnar elements may include mating features that mate at abutments between adjacent columnar elements of the stack. The control rod guide frame is suitably used in conjunction with a control rod drive mechanism (CRDM) operatively connected with at least one control rod, and a nuclear reactor core, in which the CRDM moves the at least one control rod into and out of the nuclear reactor core under guidance of the control rod guide frame. In another embodiment, a control rod guide frame comprises a stack of two or more columnar elements defining a central passage having a constant cross-section as a function of position along the central passage. In another embodiment, a control rod guide frame comprises an extruded columnar element providing continuous control rod guidance.