公开(公告)号：US10943705B2

公开(公告)日：2021-03-09

申请号：US15911763

申请日：2018-03-05

申请人： BWXT mPower, Inc.

发明人： Scott J. Shargots ,  Matthew W. Ales ,  Michael S. Berthold

IPC分类号： G21C19/20 ,  G21C7/12 ,  G21C7/16 ,  G21C1/32

摘要： A method including providing an internal control rod drive mechanism (CRDM) including an electric motor and a support surface including sealed electrical connectors electrically connected with the electric motor to deliver electrical power to the electrical motor, installing the internal CRDM inside a nuclear reactor, the installing including placing the support surface of the internal CRDM onto a support element inside the nuclear reactor, the placing causing sealed electrical connectors disposed on the support element to mate with the sealed electrical connectors on the support surface of the internal CRDM, wherein the nuclear reactor contains coolant water and the installing is performed with the internal CRDM submerged in the coolant water and the seals of the sealed electrical connectors of the internal CRDM and the support element are effective to prevent coolant water ingress into the sealed electrical connectors.

公开(公告)号：US20180197641A1

公开(公告)日：2018-07-12

申请号：US15911763

申请日：2018-03-05

申请人： BWXT mPower, Inc.

发明人： Scott J. Shargots ,  Matthew W. Ales ,  Michael S. Berthold

IPC分类号： G21C7/12 ,  G21C7/16

CPC分类号： G21C7/12 ,  G21C1/32 ,  G21C7/16 ,  H05K13/00 ,  Y02E30/39 ,  Y10T29/49169

摘要： An internal control rod drive mechanism (CRDM) including an electric motor is disposed in a nuclear reactor and further includes a support surface with sealed electrical connectors electrically connected with the electric motor power the motor. The internal CRDM is disposed on a support element secured inside the nuclear reactor. The support element includes sealed electrical connectors mating with the sealed electrical connectors on the support surface of the internal CRDM to power the electric motor. The sealed electrical connectors may be sealed glass, ceramic, or glass-ceramic connectors welded onto the ends of the MI cables extending from the motor. Springs, are disposed between the mating sealed electrical connectors of the support element and the support surface. A purge line is integrated with each mated connection.

公开(公告)号：US09991009B2

公开(公告)日：2018-06-05

申请号：US13863972

申请日：2013-04-16

申请人： BWXT mPower, Inc.

发明人： Michael S. Berthold ,  Scott J. Shargots

IPC分类号： G21C13/036 ,  G21C7/12 ,  G21C17/116 ,  G21C1/32

CPC分类号： G21C13/036 ,  G21C1/32 ,  G21C7/12 ,  G21C17/116 ,  Y02E30/40

摘要： A nuclear reactor includes a nuclear reactor core comprising fissile material and a pressure vessel containing the nuclear reactor immersed in primary coolant water at an operating pressure. The pressure vessel has a vessel penetration passing through a wall of the pressure vessel. An electrical feedthrough seals the vessel penetration and has an outside electrical connector mounted at the pressure vessel. The outside electrical connector is at atmospheric pressure. The electrical feedthrough may include a flange disposed inside the pressure vessel and sealing against an inside surface of the wall of the pressure vessel. The outside electrical connector of the electrical feedthrough may be inset into the wall of the pressure vessel.