-
公开(公告)号：EP2973601B1
公开(公告)日：2018-09-26
申请号：EP14807958.5
申请日：2014-03-13
申请人： BWXT mPower, Inc.
IPC分类号： G21C19/19 , G21C19/20 , G21C19/32 , B66C1/00 , B66F9/00 , G21C1/32 , G21C13/024 , G21C13/073 , G21C19/10 , G21D1/02 , G21C19/02 , B66C17/06
CPC分类号： G21D1/02 , B66C17/06 , G21C1/322 , G21C13/024 , G21C13/073 , G21C19/02 , G21C19/19 , G21C19/20 , G21C19/32 , Y02E30/40
摘要： A system for refueling a nuclear reactor is provided. The system includes a lower reactor vessel with a plurality of fuel rods and a plurality of control rods disposed therein, the lower reactor vessel further comprising an upper flange. An upper reactor vessel is provided which encloses a steam generator and a pressurizer, the upper reactor vessel further comprising a lower flange that matingly engages the upper flange of the lower reactor vessel. A transporter surrounds an outer surface of the upper reactor vessel, wherein the transporter is configured to translate the upper reactor vessel vertically toward and away from the lower reactor vessel and also to translate the upper reactor vessel horizontally toward or away from alignment with the lower reactor vessel.
-
公开(公告)号：EP2973591A4
公开(公告)日：2017-01-18
申请号：EP14768389
申请日：2014-02-25
发明人： DODD CHRISTOPHER D , DESANTIS PAUL K , STAMBAUGH KEVIN J , MACKOVJAK ALLAN R , MCLAUGHLIN JOHN P , GOODYEAR BRETT T , EDWARDS MICHAEL J , ALES MATTHEW W
摘要： A control rod drive mechanism (CRDM) configured to latch onto the lifting rod of a control rod assembly and including separate latch engagement and latch holding mechanisms. A CRDM configured to latch onto the lifting rod of a control rod assembly and including a four-bar linkage closing the latch, wherein the four-bar linkage biases the latch closed under force of gravity.
-
公开(公告)号：EP2973601A4
公开(公告)日：2016-11-30
申请号：EP14807958
申请日：2014-03-13
申请人： BWXT MPOWER INC
发明人： INMAN JAMES , SHARGOTS SCOTT , MCNULTY JAMES , REIFSCHNEIDER MARTIN , SMITH JOHN
IPC分类号： G21C19/19 , B66C1/00 , B66C17/06 , B66F9/00 , G21C1/32 , G21C13/024 , G21C13/073 , G21C19/02 , G21C19/10 , G21C19/20 , G21C19/32 , G21D1/02
CPC分类号： G21D1/02 , B66C17/06 , G21C1/322 , G21C13/024 , G21C13/073 , G21C19/02 , G21C19/19 , G21C19/20 , G21C19/32 , Y02E30/40
摘要： A system for refueling a nuclear reactor is provided. The system includes a lower reactor vessel with a plurality of fuel rods and a plurality of control rods disposed therein, the lower reactor vessel further comprising an upper flange. An upper reactor vessel is provided which encloses a steam generator and a pressurizer, the upper reactor vessel further comprising a lower flange that matingly engages the upper flange of the lower reactor vessel. A transporter surrounds an outer surface of the upper reactor vessel, wherein the transporter is configured to translate the upper reactor vessel vertically toward and away from the lower reactor vessel and also to translate the upper reactor vessel horizontally toward or away from alignment with the lower reactor vessel.
-
公开(公告)号：EP2973593A1
公开(公告)日：2016-01-20
申请号：EP14779191.7
申请日：2014-02-25
申请人： BWXT mPower, Inc.
摘要： A nuclear reactor comprises a pressure vessel containing a nuclear reactor core. A reactor core cooling system comprises a standpipe including a plurality of orifices in fluid communication with a refueling water storage tank (RWST) to drain water from the RWST into the standpipe, and an injection line configured to drain water from the standpipe to the pressure vessel. In some embodiments the standpipe is disposed in the RWST, while in other embodiments the standpipe is disposed outside of the RWST and cross-connection pipes connect the plurality of orifices with the RWST. The reactor core cooling system may further comprise a valve configured to control flow through one orifice of the plurality of orifices in fluid communication with the RWST based on water level in the standpipe. The valve may comprise a float valve having its float disposed in the standpipe.
摘要翻译： 核反应堆包括含有核反应堆核心的压力容器。 反应堆堆芯冷却系统包括立管，其包括与加油储水箱（RWST）流体连通的多个孔，以将水从RWST排入立管;以及注入管线，其被配置为将水从竖管排出到压力容器 。 在一些实施例中，竖管设置在RWST中，而在其它实施例中，竖管设置在RWST的外部，并且交叉连接管将多个孔与RWST连接。 反应堆堆芯冷却系统还可以包括构造成基于立管中的水位来控制流过多个孔中的一个孔的流体，该流体与RWST流体连通。 该阀可以包括其浮子设置在立管中的浮阀。
-
25.发明授权
公开(公告)号：EP3133611B1
公开(公告)日：2020-08-19
申请号：EP16178723.9
申请日：2012-05-17
申请人： BWXT mPower, Inc.
发明人： SHARGOTS, Scott J
-
公开(公告)号：EP3503120A1
公开(公告)日：2019-06-26
申请号：EP19154647.2
申请日：2011-09-15
摘要： A nuclear reactor includes a pressure vessel (10), and a control rod assembly including at least one movable control rod (18) comprising a neutron absorbing material, a control rod drive mechanism (CRDM) (14) for controlling movement of the at least one control rod, and a coupling operatively connecting the at least one control rod and the CRDM. The coupling includes a first portion comprising a first material having a first density at room temperature, and a second portion comprising a second material having a second density at room temperature that is greater than the first density. In some embodiments the coupling includes a connecting rod (30) including a hollow or partially hollow connecting rod tube (90) comprising a first material having a first density and a filler (92) disposed in the hollow or partially hollow connecting rod tube, the filler comprising a second material having a second density greater than the first density.
-
公开(公告)号：EP3394691A1
公开(公告)日：2018-10-31
申请号：EP16879874.2
申请日：2016-12-09
申请人： BWXT mPower, Inc.
CPC分类号： G06F17/5009
摘要： An apparatus and method for system safety analysis evaluation is provided, the apparatus including processing circuitry configured for generating a calculation matrix for a system, generating a plurality of models based on the calculation matrix, performing a benchmarking or convolution analysis of the plurality of models, identifying a design envelope based on the benchmarking or convolution analysis, deriving uncertainty models from the benchmarking or convolution analysis, deriving an assessment judgment based on the uncertainty models and acceptance criteria, defining one or more limiting scenarios based on the design envelope, and determining a safety margin in at least one figure-of-merit for the system based on the design envelope and the acceptance criteria.
-
公开(公告)号：EP3203481B1
公开(公告)日：2018-10-24
申请号：EP16192930.2
申请日：2012-05-17
摘要： A pressurized water reactor (PWR) includes a pressure vessel and a nuclear reactor core disposed in the pressure vessel. A baffle plate is disposed in the pressure vessel and separates the pressure vessel into an internal pressurizer volume disposed above the baffle plate and an operational PWR volume disposed below the baffle plate. The baffle plate comprises first and second spaced apart plates, and includes a pressure transfer passage having a lower end in fluid communication with the operational PWR volume and an upper end in fluid communication with the internal pressurizer volume at a level below an operational pressurizer liquid level range. A vent pipe has a lower end in fluid communication with the operational PWR volume and an upper end in fluid communication with the internal pressurizer volume at a level above the operational pressurizer liquid level range.
-
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.
IPC分类号： G21C1/32 , G21C13/02 , G21C13/028 , G21C15/00
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：EP2973591B1
公开(公告)日：2018-04-18
申请号：EP14768389.0
申请日：2014-02-25
发明人： DODD, Christopher, D. , DESANTIS, Paul, K. , STAMBAUGH, Kevin, J. , MACKOVJAK, Allan, R. , MCLAUGHLIN, John, P. , GOODYEAR, Brett, T. , EDWARDS, Michael, J. , ALES, Matthew, W.
摘要： A control rod drive mechanism (CRDM) configured to latch onto the lifting rod of a control rod assembly and including separate latch engagement and latch holding mechanisms. A CRDM configured to latch onto the lifting rod of a control rod assembly and including a four-bar linkage closing the latch, wherein the four-bar linkage biases the latch closed under force of gravity.
-
-
-
-
-
-
-
-
-
搜索结果
33 条记录 (耗时 0.012 秒)
