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1. 发明专利

JP2004219257A Method and control system for operation of boiling water reactor 有权
公开(公告)号：JP2004219257A
公开(公告)日：2004-08-05
申请号：JP2003007266
申请日：2003-01-15
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： YASUDA KENICHI , KONDO TAKAO , YAMASHITA JUNICHI , SONEDA HIDEO , IWATA YUTAKA
IPC分类号： G21C7/08 , G21C7/14 , G21C7/26 , G21D3/00 , G21D3/08
CPC分类号： Y02E30/31 , Y02E30/39
摘要： PROBLEM TO BE SOLVED: To improve the economy of the whole plant by increasing thermal output while securing thermal margin.
SOLUTION: This boiling water reactor includes a core 102, control rods 103 to be inserted into or pulled out from the core 102 and internal pumps 104 for driving coolant supplied to the core 102. Then, steady-state operation is carried out so that all the internal pumps 104 included in a reactor can be driven and controlled at the maximum rotation speed, which is acceptable under a condition of normal use or that in the proximity to it so that the insertion of the control rods 103 into the core 102 and the pulling-out of them from it can be controlled by a control rod drive mechanism 109 of an electric drive type.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2005121476A Fuel transfer procedure data generation device 审中-公开
标题翻译：燃油转运程序数据生成装置
公开(公告)号：JP2005121476A
公开(公告)日：2005-05-12
申请号：JP2003356412
申请日：2003-10-16
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： YABU EIJI , IWATA YUTAKA
IPC分类号： G21C5/00 , G21C17/00
CPC分类号： Y02E30/40
摘要： 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
摘要翻译：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

3. 发明专利

JP2006329709A Nuclear reactor output control method and apparatus thereof 有权
标题翻译：核反应堆输出控制方法及装置
公开(公告)号：JP2006329709A
公开(公告)日：2006-12-07
申请号：JP2005151151
申请日：2005-05-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWATA YUTAKA , YUNOKI MASAICHI
IPC分类号： G21C7/08 , G21C17/10 , G21D3/00
CPC分类号： Y02E30/39
摘要： PROBLEM TO BE SOLVED: To suitably execute the heating-up operation of a nuclear reactor with a specified reactor water temperature changing rate maintained even if a moderator has a positive temperature coefficient. SOLUTION: The reactor period is calculated on the basis of a detected neutron flux by a neutron flux monitor 26, and the reactor water temperature changing rate is calculated on the basis of a detected reactor water temperature by a temperature changing rate calculator 22. Further, the temperature rise acceleration as an acceleration of the reactor water temperature changing rate is calculated. (1) When the reciprocal of the reactor period is not smaller than a set value and simultaneously the reactor water temperature changing rate is not smaller than an insertion decision guideline set value (a), or (2) when the reciprocal of the reactor period is not smaller than the set value and further the reactor water temperature changing rate exceeds another insertion decision set value b (b d), which is different from the value d, and simultaneously the temperature rise acceleration is smaller than the set value, the control rod is withdrawn. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使调节剂具有正温度系数，也能够适当地执行具有规定的反应器水温变化率的核反应堆的升温操作。解决方案：基于由中子通量监测器26检测的中子通量来计算反应器周期，并且基于通过温度变化率计算器22检测到的反应器水温计算反应器水温变化率此外，计算作为反应器水温变化率的加速度的升温加速度。（1）当反应堆周期的倒数不小于设定值，同时反应堆水温变化率不小于插入决策指标设定值（a）时，或（2）反应堆周期的倒数时不小于设定值，并且反应器水温变化率进一步超过与设定值（a）不同的另一插入判定设定值b（b d），同时温升加速度小于设定值，控制棒为取消。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007064946A Method and device for determining positive/negative of moderator temperature coefficient 有权
标题翻译：用于确定调节器温度系数的积极/否定的方法和装置
公开(公告)号：JP2007064946A
公开(公告)日：2007-03-15
申请号：JP2005255079
申请日：2005-09-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWATA YUTAKA , YUNOKI MASAICHI
IPC分类号： G21C17/108
摘要： PROBLEM TO BE SOLVED: To provide a method and device for determining positive/negative of the moderator temperature coefficient before output control by control rod operation is required. SOLUTION: A neutron flux monitor 26 calculates a reactor period based on a value of a neutron flux detected from a reactor 1 with a neutron flux detector 12, and a reactor water temperature difference calculation apparatus 29 calculates reactor water temperature difference occurring while the control rod drive stopping state continues. When the inverse number of the reactor period is a preset value or more, the reactor water temperature difference is a preset value or higher, and the control rod drive stopping state continues for a certain time or longer, a positive/negative determining apparatus 35 determines that the moderator temperature coefficient is positive. When the inverse number of the reactor period is the preset value or less, the reactor water temperature difference is the preset value or higher, the control rod drive stopping state continues for the preset certain time or longer, and the last driving before stop of the control rod is performed in the pulled direction, the moderator temperature coefficient is determined to be negative. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于通过控制杆操作输出控制之前确定调节器温度系数的正/负的方法和装置。解决方案：中子通量监测器26基于从具有中子通量检测器12的反应器1检测的中子通量的值计算反应器周期，反应器水温差计算装置29计算反应器水温差发生的差异控制杆驱动停止状态继续。当反应器周期的倒数为预设值以上时，反应器水温差为预设值以上，控制棒驱动停止状态持续一定时间以上，正/负判定装置35判定为主持人温度系数为正。当反应堆周期的倒数为预设值或更小时，反应堆水温差为预设值或更高，控制棒驱动停止状态持续预设一定时间或更长时间，停止前的最后一次驾驶控制杆在拉动方向上进行，调节器温度系数确定为负值。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005241384A Method and device for controlling nuclear reactor output 有权
标题翻译：用于控制核反应堆输出的方法和装置
公开(公告)号：JP2005241384A
公开(公告)日：2005-09-08
申请号：JP2004050373
申请日：2004-02-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWATA YUTAKA , YUNOKI MASAICHI , ISHII YOSHIHIKO , FUSHIMI ATSUSHI , OCHI HITOSHI
IPC分类号： G21C17/00
摘要： PROBLEM TO BE SOLVED: To effectively inhibit a reactor water temperature changing rate from becoming excessive owing to a moderator temperature coefficient being in a positive state, and the like, as to nuclear reactor output control. SOLUTION: The reactor water temperature changing rate is calculated from detected reactor water temperatures by a temperature changing rate calculator 22. A neutron flux limit value is calculated by a neutron flux limit value calculator 27 from the changing rate at a certain time, a reactor water temperature changing rate limit value previously set as an upper limit value on the changing rate, and neutron flux detected a definite time period before a certain time point. A control rod 4 is put to insertion on condition that the neutron flux is equal to or more than the flux limit value. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：待解决的问题：为了有效地抑制反应堆水温变化率由于调节剂温度系数处于正状态而变得过度等，关于核反应堆输出控制。解决方案：通过温度变化率计算器22从检测的反应器水温度计算反应器水温变化率。中子通量极限值由中子通量极限值计算器27根据特定时间的变化率计算，预先设定为变化率的上限值的反应堆水温度变化率极限值，并且在一定时间点之前检测到确定的时间段的中子通量。在中子通量等于或大于通量极限值的条件下，将控制棒4插入。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JPH06138290A CONTROLLING METHOD FOR REACTOR OUTPUT 失效
公开(公告)号：JPH06138290A
公开(公告)日：1994-05-20
申请号：JP29241592
申请日：1992-10-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： IWATA YUTAKA , IZUTSU SADAYUKI , SHIMOMURA KOJI
IPC分类号： G21D3/04
摘要： PURPOSE:To minimize the change of the insertion pattern of a selected control rod during operation by setting a plurality of operating conditions with overlaps, and setting the boundaries among the operating conditions along flow rate controlling lines, the operating conditions being classified according to core flow rates and core output values. CONSTITUTION:Reactor operating conditions are set while being classified according to core flow rate values and reactor output values. The lines indicate rated output (a), the flow rate control (b) of flow rate controlling width lower limit, stability control (c), the upper limit (d) of an operating range B, the lower limit (e) of an operating range A, and the lower limit (f) of the operating range B, etc., respectively. X indicates the process of starting the reactor to enter a rated output level. When the boundary between the ranges A, B is indicated by line (d), the insertion pattern of a selected control rod need be changed by two complete cycles while a miniature lamp is on, whereas when the boundary is indicated by line (e), pattern change is required each time line (e) passes the boundary of the insertion pattern on line (a) at rated operation. Therefore, the pattern change can be reduced to the minimum by setting the operating range boundary to line (d),(e) at startup and rated operation, respectively.

7. 发明专利

JPS58176579A CONTROL ROD 失效
公开(公告)号：JPS58176579A
公开(公告)日：1983-10-17
申请号：JP5950482
申请日：1982-04-12
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： IWATA YUTAKA
IPC分类号： G21C7/22

8. 发明专利

JPS55143041A MANUFACTURE OF ELECTRONIC DEVICE 失效
公开(公告)号：JPS55143041A
公开(公告)日：1980-11-08
申请号：JP5028779
申请日：1979-04-25
申请人： HITACHI LTD
发明人： TSUBOSAKI KUNIHIRO , IWATA YUTAKA , SUZUKI AKIRA , OOTSUKI KEIZOU
IPC分类号： H01C17/02 , H01G4/00 , H01L21/56
摘要： PURPOSE:To prevent the deformation and mutual contact of thin wires when a semiconductor unit connected to leads through the wires is washed and dried as the unit is supported by a support member, by applying room-temperature gas blowing and high-temperature gas blowing to dry the semiconductor unit after the washing. CONSTITUTION:A semiconductor unit 3 is secured on the tab 2 of a lead frame 1. The electrodes of the unit and the leads of the frame corresponding to the electrodes are connected to each other through thin wires 4. A plurality of such units are moved on a guide rail. A nozzle 5 is provided over the units 3 to blow Freon gas onto the units. Another nozzle 6 is provided downstream to the former nozzle 5 to blow pure water onto the units to wash them. Other nozzles 7, 8 are provided over or under the rail to eject air to blow off most of the pure water adhering to the frame 1, the tabs 2 and the units 3. Still other nozzles 10, 11 are provided over or under the rail downstream to the former nozzles to blow high-temperature clean air of 100-200 deg.C to thoroughly dry the frame, the tabs and the units.

9. 发明专利

JPH02137342A CAPILLARY, METHOD AND APPARATUS FOR WIRE BONDING USING SAME, AND RESIN-MOLDED TYPE SEMICONDUCTOR DEVICE MANUFACTURED THEREWITH 失效
公开(公告)号：JPH02137342A
公开(公告)日：1990-05-25
申请号：JP29207988
申请日：1988-11-18
申请人： HITACHI LTD
发明人： ICHITANI MASAHIRO , AKATOKI HITOSHI , IWATA YUTAKA , MIKINO HIROSHI , WATANABE HIROSHI
IPC分类号： H01L21/60 , H01L21/607
摘要： PURPOSE:To execute a wire bonding operation by a coating wire, whose bonding strength is high by a method wherein a periphery of a guide hole of a wire is formed to be a recessed and protruding face at a tip face where the wire is guided. CONSTITUTION:A capillary 15 is constituted of a ceramic or a ruby; a recessed and protruding face 26 formed radially with a guide hole 25 as the center is formed at a periphery of the guide hole 25 at its tip face. Accordingly, a bonding surface between a coating wire 24 at a second bonding operation and an inner-end electrode 47 at a lead is formed to be a recessed and protruding shape; a prescribed bonding cross-sectional area of a metal wire 24A as an axial wire is secured; as a result, a high bonding strength can be obtained at the second bonding operation; the wire is not stripped off from a bonded part by an injection pressure of a resin during a resin molding process or the like. Thereby, a bonding strength of the wire at the bonded part can be enhanced; a fine and complicated bonding operation using the coating wire can be executed.

10. 发明专利

JPS615530A SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS615530A
公开(公告)日：1986-01-11
申请号：JP12517184
申请日：1984-06-20
申请人： HITACHI LTD
发明人： IWATA YUTAKA , WAKASHIMA YOSHIAKI , TSUBOSAKI KUNIHIRO
IPC分类号： H01L21/52 , C08L83/07 , H01L21/58 , H01L23/495
摘要： PURPOSE:To obtain a semiconductor device having high reliability placed with a large pellet by mounting the pellet through an elastic material on a pellet mount, and absorbing a stress produced at the pellet by the material. CONSTITUTION:A silicone rubber 8 of an elastic material is used to mount a pellet 2 on a tab 1. In other words, the rubber 8 having adhesive performance and heat resistance of elastic material is used to bond the pellet 2 to the tab 1 to mount the pellet 2. Thus, even if a semiconductor device is affected by the variation in the temperature due to temperature cycle, the difference of thermal expansion coefficients between the pellet 2 of silicon and the like and the tab 1 of ''Kovar'' and the like adsorbed by the rubber 8 is absorbed by the rubber 8. Thus, the stress produced at the pellet 2 due to the difference can be reduced.

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