公开(公告)号：US11798695B2

公开(公告)日：2023-10-24

申请号：US17333633

申请日：2021-05-28

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Eric Paul Loewen ,  Seth Ryan Paul Strege ,  Nicholas Francis O'Neill ,  Colin Christopher O'Connor ,  Chelsea Ann Curtin ,  Edwin Wu

IPC分类号： G21C15/247 ,  F04B17/00 ,  H02K44/06 ,  F04B23/04 ,  H02K44/02

CPC分类号： G21C15/247 ,  F04B17/00 ,  H02K44/06 ,  F04B23/04 ,  H02K44/02 ,  Y02E30/30

摘要： The method includes configuring a nuclear reactor to at least partially mitigate liquid metal coolant backflow in the nuclear reactor in response to an at least partial failure of a primary electromagnetic pump (EMP) within a reactor pressure vessel of the nuclear reactor, the nuclear reactor being liquid metal-cooled, the primary EMP configured to circulate liquid metal coolant through at least a reactor core of the nuclear reactor, the configuring including, installing a backflow EMP within the reactor pressure vessel, such that when selectively activated, the backflow EMP at least partially mitigates liquid metal coolant backflow through the primary EMP.

公开(公告)号：US10209139B2

公开(公告)日：2019-02-19

申请号：US15919382

申请日：2018-03-13

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Eric P. Loewen ,  Brett J. Dooies ,  Seth Ryan Paul Strege ,  Nicholas Francis O'Neill

IPC分类号： G01K11/32 ,  G21D3/04 ,  G01K1/02

摘要： A temperature change detection apparatus for monitoring temperature change in various portions of a large space includes a trip logic unit configured to execute a trip operation based on receipt of a trip signal at the trip logic unit; a plurality of temperature sensors each including a sensing portion composed of optical fiber cable and each being configured to generate light information indicating an amount of Brillouin scattering that occurs within the sensing portion; a plurality of monitoring units configured such that each monitoring unit determines a temperature value corresponding to each temperature sensor connected to the monitoring unit based on an amount of Brillouin scattering indicated by the light information generated by each of the connected temperature sensors, an each monitoring unit generates a trip signal when a determined temperature value exceeds a running average by more than a threshold amount.

公开(公告)号：US09833648B2

公开(公告)日：2017-12-05

申请号：US14579512

申请日：2014-12-22

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Eric Paul Loewen ,  Brett Jameson Dooies ,  Seth Ryan Paul Strege ,  Nicholas Francis O'Neill ,  Dana Christine Miranda ,  Haley Michelle Cowen

IPC分类号： A62C3/06 ,  A62C35/10 ,  G21C9/04 ,  A62D1/00 ,  G21C1/03 ,  G21C9/00 ,  G21C17/025

CPC分类号： A62C3/06 ,  A62D1/0007 ,  G21C1/03 ,  G21C9/002 ,  G21C9/04 ,  G21C17/0255 ,  Y02E30/40

摘要： A method for suppressing a pyrophoric metal fire may include arranging a suppression system above a containment structure. The suppression system includes a first extinguishing agent. The containment structure is configured to contain and isolate a pyrophoric metal from ambient air. The suppression system is configured to activate upon a leak and ignition of the pyrophoric metal so as to release the first extinguishing agent to suppress the pyrophoric metal fire.