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公开(公告)号：US09431137B2
公开(公告)日：2016-08-30
申请号：US13523277
申请日：2012-06-14
摘要： A diagnostic system to monitor digital rod position indication (DRPI) signals of a DRPI system of a nuclear power plant, including a digital diagnostic unit connected between a DRPI display cabinet and a DRPI data cabinet of the DRPI system to monitor digital rod position signals of the DRPI data cabinet. The digital rod position signals include digital rod address signals and digital rod position data signals such that the digital diagnostic unit detects signal level variation and signal timing variation of the digital rod address signals and the digital rod position data signals to determine rod position errors of the DRPI system.
摘要翻译： 一种诊断系统，用于监视核电站DRPI系统的数字杆位置指示（DRPI）信号，包括连接在DRPI显示柜和DRPI系统的DRPI数据柜之间的数字诊断单元，以监视数字杆位置信号 DRPI数据柜。 数字杆位置信号包括数字杆地址信号和数字杆位置数据信号，使得数字诊断单元检测数字杆地址信号和数字杆位置数据信号的信号电平变化和信号定时变化，以确定杆位位置误差 DRPI系统。
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2.发明授权High resolution digital rod position indication system for nuclear power plants 有权核电站高分辨率数字式杆位置指示系统公开(公告)号：US08903033B2
公开(公告)日：2014-12-02
申请号：US12351745
申请日：2009-01-09
申请人： Gregory M. Morton , Hashem M. Hashemian , Brent D. Shumaker , Danny D. Beverly , Casey D. Sexton
发明人： Gregory M. Morton , Hashem M. Hashemian , Brent D. Shumaker , Danny D. Beverly , Casey D. Sexton
IPC分类号： G21C17/00
CPC分类号： G21C17/00 , G21C7/08 , G21C17/12 , G21Y2002/204 , Y02E30/39
摘要： A high resolution digital rod position indication (high resolution DRPI) system having improved resolution. The high resolution DRPI system monitors the rod control cluster and provides an indication of the rod position with precision to a single step. In addition, the high resolution DRPI system is capable of producing a rod position output compatible with existing rod control systems. The improved resolution of the high resolution DRPI system allows the actual position of the control rods to be continuously monitored and eliminates the need for or reduces the frequency of offline re-initialization of the step counters.
摘要翻译： 高分辨率数字棒位置指示（高分辨率DRPI）系统具有改进的分辨率。 高分辨率DRPI系统监视杆控制群集，并以一步的精度提供杆位置的指示。 此外，高分辨率DRPI系统能够产生与现有的杆控制系统兼容的杆位置输出。 高分辨率DRPI系统的改进分辨率允许控制杆的实际位置被连续监视，并且消除了对步进计数器的离线重新初始化的需要或降低的频率。
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3.发明授权Apparatus and method for measuring a temperature of coolant in a reactor core, and apparatus for monitoring a reactor core 有权用于测量反应堆堆芯中的冷却剂的温度的装置和方法，以及用于监测反应堆堆芯的装置公开(公告)号：US08831162B2
公开(公告)日：2014-09-09
申请号：US11520785
申请日：2006-09-14
申请人： Naotaka Oda , Tadashi Miyazaki
发明人： Naotaka Oda , Tadashi Miyazaki
IPC分类号： G21C17/112 , G11C17/12 , G21C17/00
CPC分类号： G11C17/12 , G21C17/12 , G21Y2002/204 , G21Y2002/302 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40
摘要： A reactor core coolant temperature measuring apparatus for measuring the temperature of the coolant flowing in the reactor core of a nuclear reactor comprises a γ-ray thermometer having a temperature measuring section arranged below the bottom of the reactor core and a γ-ray heat generation detecting section arranged between the bottom and the top of the reactor core, a cable for transmitting the signal output from the temperature measuring section and an output signal processing means for receiving the signal and computationally determining the local temperature of the coolant at the position of placement of the temperature measuring section.
摘要翻译： 用于测量在核反应堆的反应堆芯中流动的冷却剂的温度的反应堆堆芯冷却剂温度测量装置包括：γ射线温度计，其具有设置在反应堆堆芯底部的温度测量部分和γ射线发热检测器 布置在反应堆芯的底部和顶部之间的部分，用于传输从温度测量部分输出的信号的电缆和用于接收信号的输出信号处理装置，并计算地确定在放置位置处的冷却剂的局部温度 温度测量部分。
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4.发明申请公开(公告)号：US20130177123A1
公开(公告)日：2013-07-11
申请号：US13707783
申请日：2012-12-07
发明人： Casey D. Sexton , Danny D. Beverly , Gregory W. Morton , Hashem M. Hashemian , Brent D. Shumaker
IPC分类号： G21C17/00
CPC分类号： G21C17/00 , G21C7/08 , G21C17/12 , G21Y2002/204 , Y02E30/39
摘要： Systems and methods of monitoring position information of a control rod in a nuclear reactor, including detecting an output signal induced by movement of a control rod with respect to at least one detection coil of the control rod, the output signal having identifiable characteristics representative of a plurality of positions of the control rod within the at least one detection coil, and processing the identifiable characteristics to derive the positions of the control rod within the at least one detection coil.
摘要翻译： 监视核反应堆中的控制杆的位置信息的系统和方法，包括检测由控制杆相对于控制棒的至少一个检测线圈的移动而引起的输出信号，该输出信号具有代表一个 所述控制杆在所述至少一个检测线圈内的多个位置，以及处理所述可识别特征以导出所述控制杆在所述至少一个检测线圈内的位置。
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公开(公告)号：US20120155596A1
公开(公告)日：2012-06-21
申请号：US13326465
申请日：2011-12-15
申请人： JOSEPH E. KOWLES , David A. Story
发明人： JOSEPH E. KOWLES , David A. Story
IPC分类号： G21C17/10
摘要： A high temperature reed switch position indicator for a pressurized water reactor in which the drive rod housing is completely immersed in the reactor coolant. The reed switch sensor modules positioned along the control rod drive rod travel housing are constructed solely of metallic, ceramic and glass materials and are sealed within an outer housing to isolate the sensor assembly from the coolant.
摘要翻译： 用于压水反应堆的高温簧片开关位置指示器，其中驱动杆壳体完全浸入反应堆冷却剂中。 沿着控制杆驱动杆移动壳体定位的簧片开关传感器模块仅由金属，陶瓷和玻璃材料构成，并且被密封在外壳内以将传感器组件与冷却剂隔离。
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公开(公告)号：US6091790A
公开(公告)日：2000-07-18
申请号：US74822
申请日：1998-05-08
申请人： Charles F. Ridolfo
发明人： Charles F. Ridolfo
摘要： Compliance with administrative limits on cumulative exposure of control rod groups in the reactor core, is monitored by computing the incremental effective exposure for each group commensurate with core power, for each time increment at which each group is within the position range where an administrative limit is imposed. The increments of effective exposures for each group are accumulated, and the accumulated effective exposure for each group is compared with the administrative limit to each group. This comparison is then displayed to the reactor operator, preferably using either a "rolling wheel" or "sliding bar" format.
摘要翻译： 通过计算与核心功率相称的每个组的增量有效暴露，对每个组在每个时间段内的行政限制在行政限制为 强加。 累计每组有效敞口增量，并将每组的累计有效风险与每组的行政限额进行比较。 然后将该比较显示给反应器操作者，优选使用“滚轮”或“滑动条”格式。
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公开(公告)号：US5276719A
公开(公告)日：1994-01-04
申请号：US929980
申请日：1992-08-14
申请人： Pramod Batheja , Werner Meier , Peter Rau
发明人： Pramod Batheja , Werner Meier , Peter Rau
摘要： A hydraulic control rod drive for a nuclear reactor, with a a reactor plenum enclosing the drive, comprises first and second hollow bodies together forming a cylinder and a hollow piston. Working fluid is supplied through one of the hollow bodies. The first hollow body is stationary and the second hollow body is disposed coaxially around the first hollow body. The two hollow bodies define an annular gap therebetween so as to allow axial reciprocating movement of the second hollow body, which forms a carrier body for control elements of the control rod. The second hollow body can be lifted, lowered or suspended by feeding working fluid. A portion of the fluid is removed from the inner space via a throttle passage. A positional measurement system determines the relative displacement of the second hollow body by measuring an ultrasonic measurement path. The system includes an ultrasound reflector and an ultrasonic transducer rigidly mounted remote from the ultrasound reflector. Provisions are made for venting the inner space through venting channels which open into the reactor plenum at a security distance from the measurement path so as not to adversely affect the ultrasonic measurement.
摘要翻译： 用于核反应堆的液压控制杆驱动器，其中包围驱动器的反应器集气室包括一起形成气缸和中空活塞的第一和第二空心体。 工作流体通过一个空心体供给。 第一中空体是静止的，第二中空体同轴地设置在第一中空体周围。 两个中空体在它们之间限定一个环形间隙，从而允许第二中空体的轴向往复运动，该第二空心体形成用于控制棒的控制元件的载体。 第二中空体可以通过供给工作流体而被提升，降低或悬挂。 流体的一部分经由节流通道从内部空间移除。 位置测量系统通过测量超声波测量路径来确定第二中空体的相对位移。 该系统包括超声波反射器和刚性地安装在超声波反射器上的超声波换能器。 规定了通过在与测量路径保持距离的开放进入反应堆的排气通道排出内部空间，以免对超声波测量产生不利影响。
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8.发明授权
公开(公告)号：US5076996A
公开(公告)日：1991-12-31
申请号：US360030
申请日：1989-06-01
IPC分类号： G21C17/12
CPC分类号： G21C17/12
摘要： A system for monitoring an operating condition of a control rod drive mechanism (CRDM) having a pressure housing erectly mounted on a reactor vessel head closure, a vertically movable control rod drive shaft accommodated in the housing and an electromagnetically motive latch mechanism includes an accelerometer fitted to a housing upper end and signal recording means for receiving output signals from the accelerometer through signal processing means and recording the processed output signals. A system for monitoring and analyzing an operating condition of an electromagnetically driven CRDM having a lifting electromagnetic coil, a stationary gripper electromagnetic coil and a movable gripper electromagnetic coil includes a detector, fitted to the CRDM, for detecting vibrations caused by operation of the drive mechanism, a buffer amplifier for receiving current, and detection and control signals, a pre-processing unit for digitalizing these signals, and a processing unit for analytically processing both the current and detection signals.
摘要翻译： 一种用于监测控制棒驱动机构（CRDM）的操作状态的系统，其具有竖立地安装在反应堆容器头部封闭件上的压力壳体，容纳在壳体中的可垂直移动的控制杆驱动轴和电磁动力闩锁机构，包括加速度计 以及信号记录装置，用于通过信号处理装置接收来自加速度计的输出信号并记录经处理的输出信号。 一种用于监测和分析具有提升电磁线圈，静止夹持器电磁线圈和可动夹持器电磁线圈的电磁驱动CRDM的操作条件的系统包括安装在CRDM上的用于检测由驱动机构的操作引起的振动的检测器 用于接收电流的缓冲放大器和检测和控制信号，用于对这些信号进行数字化的预处理单元，以及用于分析处理电流和检测信号的处理单元。
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公开(公告)号：US4927594A
公开(公告)日：1990-05-22
申请号：US230393
申请日：1988-08-10
摘要： The present invention obtains enthalpy rise deviations in core power distribution using core exit thermocouples 18 and an inlet temperature detector 20. The enthalpy rise deviations are used to determine control rod position change relative a rod reference position. Because rod position change is linear with respect to enthalpy deviation, the change can be determined from the slope using the deviation. By adding the change to a reference rod position the actual rod position can be determined.
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10.发明授权Apparatus for measuring the position of a moving member relative to a fixed member 失效用于测量移动构件相对于固定构件的位置的装置
公开(公告)号：US4719420A
公开(公告)日：1988-01-12
申请号：US564759
申请日：1983-12-23
申请人： Guy Boimond
发明人： Guy Boimond
IPC分类号： G01B7/00 , G01D5/14 , G01D5/20 , G21C17/10 , G21C17/12 , G01B7/14 , G01N27/72 , G01R33/12 , G21C17/00
CPC分类号： G21C17/12 , G01D5/14 , G01D5/2046
摘要： The invention relates to an apparatus making it possible to measure the position of a moving bar in a non-magnetic guidance enclosure. The bar carries a permanent magnet, whose position is detected by at least one group of magnetometer transducers, arranged along a generatrix of the enclosure. The transducers of the same group are connected so as to form a matrix of n rows and p columns. The exciting windings of the transducers of the same row are connected in series and each row is supplied in turn by a multiplexing circuit. In the same way, the reading windings of the transducers of the same column are connected in parallel and each column is scanned in turn by a multiplexing circuit.
摘要翻译： 本发明涉及一种使得可以测量非磁性引导外壳中的移动杆的位置的装置。 该棒带有永久磁铁，其永久磁铁的位置由至少一组磁力计传感器检测，该磁力计传感器沿外壳的母线布置。 相同组的换能器被连接以便形成n行和p列的矩阵。 同一行的换能器的励磁绕组串联连接，每行依次由多路复用电路供电。 以同样的方式，同一列的换能器的读取绕组并联连接，每列依次由多路复用电路扫描。
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