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    • 1. 发明专利
    • Fuel transfer procedure data generation device
    • 燃油转运程序数据生成装置
    • JP2005121476A
    • 2005-05-12
    • JP2003356412
    • 2003-10-16
    • Hitachi Eng Co LtdHitachi Ltd日立エンジニアリング株式会社株式会社日立製作所
    • YABU EIJIIWATA YUTAKA
    • G21C5/00G21C17/00
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a device utilizable for planning a fuel transfer procedure, the validity confirmation of a planned fuel transfer plan, and subcriticality evaluation prediction during fuel replacement.
      SOLUTION: A storage device 8 equipped with a calculation condition data file 5, a knowledge base 6 and a nuclear database 7 is connected to an operation processing device 4 of this fuel transfer procedure data generation device. The device 4 includes a plan planning condition data reading part 9, a transfer candidate extraction part 11, a subcriticality evaluation part 12 and a transfer route determination part 13. Especially, the subcriticality evaluation part includes a drawing part 12a for drawing a core fuel arrangement chart in the whole core system which is a subcriticality evaluation object; a mesh region nuclear data setting part 12b for generating homogeneous core radial direction section mesh to the evaluation object core fuel arrangement chart, and taking nuclear data to the fuel or the like which is each mesh region installation article from the nuclear database; and a determination part 12c for setting up simultaneous equations from the nuclear data in every region, calculating a neutron effective multiplication factor value of a coefficient by a numerical solution, and determining acceptability of the subcriticality.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供可用于规划燃料转移程序的装置,计划燃料转移计划的有效性确认和燃料更换期间的亚临界评估预测。 解决方案:配备有计算条件数据文件5,知识库6和核数据库7的存储装置8连接到该燃料转移程序数据生成装置的操作处理装置4。 设备4包括计划规划条件数据读取部分9,转移候选提取部分11,亚临界评估部分12和传输路线确定部分13.特别地,亚临界评估部分包括用于绘制核心燃料布置的绘图部分12a 整个核心系统中的图表是亚临界评估对象; 用于产生均匀的芯径向截面的网格区域核数据设定部分12b与评估对象核心燃料排列图相啮合,并将核数据从核数据库中获取为作为每个网格区域安装物品的燃料等; 以及用于根据每个区域中的核数据建立联立方程的确定部分12c,通过数值解计算系数的中子有效乘数因子值,并确定亚临界度的可接受性。 版权所有(C)2005,JPO&NCIPI
    • 2. 发明专利
    • CONTROL DATA PREPARATION DEVICE FOR REFUELING MACHINE
    • JPH05209989A
    • 1993-08-20
    • JP1592792
    • 1992-01-31
    • HITACHI LTDHITACHI ENG CO LTD
    • YABU EIJIMATSUURA HIDEFUMISUZUKI SHUJI
    • G21C19/18
    • PURPOSE:To provide a refueling machine control data preparation device capable of minimizing the shifting time of a refueling machine, while considering the minimization of a fuel transfer frequency on the basis of restrictions on a fuel transfer in planning a fuel transfer program at a nuclear power plant. CONSTITUTION:This data preparation device is constituted of a mechanism 4 for selecting a fuel candidate for the next transfer via the application of knowledge database 2, a transfer route evaluation mechanism 8 for evaluating the transfer route of each transfer fuel candidate and a transfer time, a mechanism 6 for determining fuel requiring a minimum transfer time among transfer fuel candidates, and a color CRT for displaying the transfer route of a refueling machine. Optimum fuel transfer procedures can be prepared by reducing step numbers for fuel transfer and minimizing the transfer time of the refueling machine. Also, the required number of refueling days affecting the period of a periodical inspection can be reduced. Furthermore, the work schedule of the periodical inspection can be shortened, and the number of plant operation days per year can be increased.