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    • 5. 发明专利
    • Vibration region monitor and method of confirming soundness of the same
    • 振动区域监测器及其确认方法
    • JP2012154631A
    • 2012-08-16
    • JP2011011044
    • 2011-01-21
    • Toshiba Corp株式会社東芝
    • FURUSAWA TAKAYOSHIUMEMURA NORIHIROMIYAZAKI TEIJI
    • G21C17/00
    • G21D3/001G21C17/108G21D3/10Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a vibration region monitor capable of improving reliability of trip determination.SOLUTION: A vibration region monitor 9 includes: an averaging processing part 2 for receiving an LPRM detection value for which noise is eliminated from LPRM detection signals and calculating an average value for each cell; a time average processing part 3 for computing a time average value from the average value of the LPRM detection value; a normalized cell value computing part 4 for computing a normalized cell value for each cell by the average value and the time average value of each cell of the LPRM detection value; a trip determination part 5 for inputting the normalized cell value, monitoring output vibrations by an amplitude base trip, an increase rate trip and a period base trip for each cell, and outputting a scrum trip when the normalized cell value exceeds a setting value; and an amplitude abnormality determination means 14 for determining abnormality by detecting the LPRM detection value for which the LRPM detection signals are inputted to the cell and vibrations are not presented at the LPRM detection value.
    • 要解决的问题:提供能够提高行程确定的可靠性的振动区域监视器。 解决方案:振动区域监视器9包括:平均处理部分2,用于从LPRM检测信号接收消除噪声的LPRM检测值,并计算每个信元的平均值; 时间平均处理部3,用于根据LPRM检测值的平均值计算时间平均值; 归一化单元值计算部分4,用于通过LPRM检测值的每个单元的平均值和时间平均值计算每个单元的归一化单元值; 用于输入归一化单元值的行程确定部分5,用于监视每个单元的振幅基准跳闸,增加速率跳闸和周期基准跳闸的输出振动,以及当归一化单元值超过设定值时输出振荡跳闸; 以及振幅异常判定单元14,用于通过检测向该单元输入LRPM检测信号的LPRM检测值来确定异常,并且以LPRM检测值不呈现振动。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • System, method, and program for monitoring reactor core
    • 用于监测反应堆核心的系统,方法和程序
    • JP2013047666A
    • 2013-03-07
    • JP2012133741
    • 2012-06-13
    • Toshiba Corp株式会社東芝
    • YOSHIDA MOTOKOKOIZUMI ATSUHIKOOKADA MASAYUKI
    • G21C17/00
    • G21D3/10G21C7/36G21D3/001Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a reactor core monitoring technique for computing accurate reactor core performance data in a short cycle.SOLUTION: A reactor core monitoring system 10 includes: an information retention section 20 for retaining a normal cycle period T1 and a short cycle period T2 as information for computing reactor core performance data X; a signal processing section 30 for generating heat-balance data H based on a process signal P; a data acquisition section 41 for acquiring, every normal cycle period, the heat-balance data H and the reactor core performance data X computed in the previous normal cycle, and for acquiring the heat-balance data H and the most recently computed reactor core performance data X every short cycle period asynchronously with the normal cycle; and a data computation section 42 for computing new reactor core performance data X based on the acquired reactor core performance data X and the heat-balance data H.
    • 要解决的问题:提供用于在短周期内计算精确的反应堆堆芯性能数据的反应堆堆芯监测技术。 解决方案:反应堆堆芯监测系统10包括:信息保持部分20,用于保持正常循环周期T1和短循环周期T2作为用于计算反应堆堆芯性能数据X的信息; 用于基于处理信号P产生热平衡数据H的信号处理部分30; 数据获取部分41,用于在每个正常周期周期中获取在前一个正常周期中计算的热平衡数据H和反应堆堆芯性能数据X,以及用于获取热平衡数据H和最近计算的反应堆堆芯性能 数据X每个短周期与正常周期异步; 以及用于基于所获取的反应堆堆芯性能数据X和热平衡数据H来计算新的反应堆堆芯性能数据X的数据计算部分42. COPYRIGHT:(C)2013,JPO&INPIT
    • 10. 发明专利
    • Method for operating nuclear power generation plant and nuclear power generation
    • 运行核发电厂和核发电的方法
    • JP2009133723A
    • 2009-06-18
    • JP2007310113
    • 2007-11-30
    • Hitachi-Ge Nuclear Energy Ltd日立Geニュークリア・エナジー株式会社
    • HINO TETSUSHICHAGI MASAOAOYAMA TADAOMITSUYASU TAKESHIISHII YOSHIHIKO
    • G21D3/08G21C7/26
    • G21C7/08G21C7/32G21D3/10G21Y2002/201G21Y2002/301G21Y2002/304G21Y2004/40Y02E30/39
    • PROBLEM TO BE SOLVED: To provide a method for operating a nuclear reactor, which improves an operating rate of a nuclear power generation plant and simplifies a feed water temperature control system.
      SOLUTION: In one operation cycle, the nuclear reactor is operated in three operation patterns; a first control rod pattern during a period P1, a second control rod pattern during a period P2, and a third control rod pattern, with all control rods completely withdrawn, during a period P3. Respective feed water temperature set values T
      1 , T
      2 , T
      3 and T
      E of periods a, b, c and d have relations of T
      1 >T
      2 >T
      3 >T
      E . A core flow rate set value W
      1 during the period a is set according to T
      1 , and a core flow rate set value W
      2 during the period b is set according to T
      2 . These core flow rate set values, which have relations of W
      1 2 , are set so that the core inlet cooling water temperature is not higher than an upper limit temperature up to which cavitation does not take place and closer to the upper-limit temperature. Core flow rate set values during the periods c and d are the maximum core flow rate. The feed water temperature set values and core flow rate set values are used to provide control, respectively.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种操作核反应堆的方法,其提高核发电厂的运行速度并简化给水温度控制系统。 解决方案:在一个操作循环中,核反应堆以三种操作模式运行; 在一段时间P3期间,期间P1中的第一控制杆图案,期间P2期间的第二控制杆图案和第三控制杆图案,其中所有控制杆完全拉出。 周期a,b的各供水温度设定值T 1 ,T 2 T 3 和T SB> E ,c和d具有T 1 > T 2 > T 3 > T E 的关系。 在根据T 1 设定时段a期间的核心流量设定值W 1 ,以及核心流量设定值W 2 期间 周期b根据T 2设定。 具有W 2 的关系的这些核心流量设定值被设定为使得核心入口冷却水温度不高于上限温度升高 空穴不发生并且更接近上限温度。 c和d期间的核心流量设定值是最大核心流量。 供水温度设定值和核心流量设定值分别用于提供控制。 版权所有(C)2009,JPO&INPIT