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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

JP2007032710A Piping system for capturing foreign matter 审中-公开
标题翻译：用于捕获外部事务的管道系统
公开(公告)号：JP2007032710A
公开(公告)日：2007-02-08
申请号：JP2005217150
申请日：2005-07-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA NAOYUKI , TAKAHASHI SHIRO , SONEDA HIDEO , YASUDA KENICHI , HISATSUNE SHINICHI
IPC分类号： F16L55/24 , F01D25/00 , G21C19/307 , G21D1/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a piping system for capturing foreign matters capable of improving a capturing ratio of foreign matters mixed in fluid.
SOLUTION: Horizontal pipe conduits 2H, 2H1, 2H2 are formed on the way of piping 2, 12A, 12B, a water stop zone formation portion is provided to form a water stop zone 10 at a downstream side of the horizontal pipe conduits, further connection piping 3C, 3C1, 3C2 are formed in a state of extending upward from the horizontal pipe conduits at an upstream side with respect to the water stop zone formation portion and reaching a downstream side of the piping, and a tip 11 of the water stop zone 10 is positioned within a range of openings of pockets 5, 51, 52 formed on the horizontal pipe conduits in a state of extending downward.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于捕获能够提高混合在流体中的异物捕获率的异物的管道系统。
解决方案：在管道2,12A，12B的路上形成水平管道2H，2H1,2H2，设置防水区域形成部分，以在水平管道的下游侧形成停水区域10 进一步的连接配管3C，3C1,3C2形成为从水平管路向上延伸的状态，在相对于停水区域形成部的上游侧到达管路的下游侧，止水带10位于在向下延伸的状态下形成在水平管道上的袋5,51,52的开口的范围内。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2003334603A Control method for tandem rolling equipment and tandem rolling equipment 有权
标题翻译： TANDEM滚压设备和TANDEM滚压设备的控制方法
公开(公告)号：JP2003334603A
公开(公告)日：2003-11-25
申请号：JP2002147070
申请日：2002-05-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YASUDA KENICHI , HIRAMA YUKIO , IGARI MINORU , HORII KENJI , KOBAYASHI YUJIRO , MATSUI YOICHI , EGUCHI YOSHIMI , HATTORI SATORU
IPC分类号： B21B37/28 , B21B37/00 , B21B37/16 , B21B37/38 , B21B37/42 , B21B38/02
摘要： PROBLEM TO BE SOLVED: To provide a control method for tandem rolling equipment to efficiently modify a local shape of a plate end of a rolling material, and also to provide tandem rolling equipment. SOLUTION: In the tandem rolling equipment, the shape of the plate is measured on the outlet side of a rolling mill at the final stage of a plurality of the rolling mills, and the plate is wholly separated into a central part and the plate ends in the width direction thereof. The plate thickness distribution of the plate end of the rolling material is controlled to make detection value of the shape of the plate end reach a target value on at least either an inlet side or the outlet side of the rolling mill at the final stage, and thus the plate ends are efficiently modified. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供串联轧制设备的控制方法，以有效地改变轧制材料的板端的局部形状，并且还提供串联轧制设备。解决方案：在串联轧制设备中，在多台轧机的最后阶段，在轧机的出口侧测量板的形状，并且板完全分离成中心部分，并且板在其宽度方向上终止。控制轧制材料的板端的板厚分布，使板端的形状的检测值在最后阶段的至少轧制机的入口侧或出口侧达到目标值，因此板端部被有效地修改。版权所有（C）2004，JPO

4. 发明专利

JP2006194749A Reactor core support structure 有权
标题翻译：反应堆核心支撑结构
公开(公告)号：JP2006194749A
公开(公告)日：2006-07-27
申请号：JP2005007002
申请日：2005-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIBATA MASAKAZU , SONEDA HIDEO , WATANABE SATOSHI , YASUDA KENICHI , OTSUKA MASAYA , MIZUNO TADASHI
IPC分类号： G21C15/02 , G21C5/06 , G21C5/10
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To reduce the pressure loss coefficient of an orifice of fuel support metal in a boiling water reactor without degrading reinforcement effects by a reinforcement beam of a core support structure plate having a perpendicular reinforcement beam to the utmost.
SOLUTION: Each of reinforcement beams 3 and 4 of the core support plate of a boiling water reactor is perpendicularly assembled and the thickness of one reinforcement beam 3 is formed thinner than the thickness of the other reinforcement beam 4. Because of the difference in thickness of each reinforcement beam 3, 4, flow areas S
1 and S
2 in the left and the right of the boundary of a broken line connecting a corner where the reinforcement beams 3, 4 cross and the center of the orifice 2 of the fuel support metal 1 facing the corner become imbalance. As the flow paths around a control rod guide tube 9 inserted between each reinforcement beam 3, 4 become asymmetric on the broken line, and the flow into the orifice 2 of the fuel support metal 1 is simplified, pressure loss in the reactor core is reduced.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了降低沸水反应器中的燃料载体金属的孔口的压力损失系数，而不会使具有垂直加强梁的芯支撑结构板的加强梁最大限度地降低加固效果。解决方案：沸水反应器的芯支撑板的每个加强梁3和4垂直组装，并且一个加强梁3的厚度形成为比另一个加强梁4的厚度更薄。由于差异每个加强梁3,4的厚度，连接角部的虚线的边界的左侧和右侧的流动区域S 1 和S 2 燃料支撑金属1的孔3和4的横截面中心与燃料支撑金属1相对的角部变得不平衡。当插入在每个加强梁3,4之间的控制杆引导管9周围的流动路线在虚线上变得不对称时，并且简化了进入燃料支撑金属1的孔口2的流动时，反应堆堆芯中的压力损失减小。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2003021143A Hydrostatic bearing, and plate processing device and plate processing method using the same 审中-公开
标题翻译：含水轴承及板加工装置及其加工方法
公开(公告)号：JP2003021143A
公开(公告)日：2003-01-24
申请号：JP2001208714
申请日：2001-07-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YASUDA KENICHI , HIRAMA YUKIO , IGARI MINORU
IPC分类号： F16C32/06 , B21B31/07 , F16C13/02
摘要： PROBLEM TO BE SOLVED: To increase productivity by reducing time to repair a hydrostatic bearing.
SOLUTION: The hydrostatic bearing 1 has two top plates 6 arranged to cover respective open shoulder portions 9 of a raceway 3. In the arrangement, an edge 6a of each top plate 6 projects from an inner surface of the raceway 3, and a gap Ga between the edge 6a and an outer periphery of a roller 7 is smaller than a gap Gb between the inner surface of the raceway 3 and the outer periphery of the roller 7. The constitution, which is equivalent to that with a large wear portion, can retard degradation in a levitation characteristic of the roller 7 to prolong a period of recovering repair. Recovering repair only requires the replacement of each top plate 6 with a new one while a bearing body 2 is kept installed in a plate processing device, so that the work can be short and easy.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过减少修复静压轴承的时间来提高生产率。解决方案：静压轴承1具有布置成覆盖滚道3的相应开口肩部9的两个顶板6.在该布置中，每个顶板6的边缘6a从滚道3的内表面突出，并且间隙Ga 在边缘6a和辊7的外周之间的距离小于滚道3的内表面和滚子7的外周之间的间隙Gb。等同于具有大磨损部分的构造可以延缓辊7的悬浮特性的劣化，延长恢复修复的时间。恢复维修只需要更换每个顶板6，同时将轴承体2保持安装在板处理装置中，使得工作可以简单和容易。

6. 发明专利

JP2006234406A Method of collecting foreign matter 审中-公开
标题翻译：收集外国人的方法
公开(公告)号：JP2006234406A
公开(公告)日：2006-09-07
申请号：JP2005045488
申请日：2005-02-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA NAOYUKI , TAKAHASHI SHIRO , SONEDA HIDEO , YASUDA KENICHI
IPC分类号： G21C19/02 , G21C19/26
摘要： PROBLEM TO BE SOLVED: To provide a method of collecting a foreign matter which suppresses damage on a fuel rod to enhance safety in a nuclear reactor.
SOLUTION: A foreign matter collecting implement 20 having a filtering mesh member 21b for collecting foreign matters is attached on a pump body 1A of a recirculation pump 1 while the nuclear reactor is stopped. Circulation flow is formed inside a pressure vessel 10 by operating the recirculation pump 1 to capture the foreign matters with the filtering mesh member 21b. Then, the pump 1 is stopped, and the foreign matter collecting implement 20 is taken out of the pressure vessel 10 to collect the foreign matters together with the implement 20.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种收集异物的方法，其抑制对燃料棒的损害以提高核反应堆的安全性。解决方案：在核反应堆停止的同时，将具有用于收集异物的过滤网构件21b的异物收集器具20安装在再循环泵1的泵体1A上。通过使再循环泵1通过过滤网构件21b捕获异物，在压力容器10的内部形成循环流。然后，泵1停止，异物收集工具20从压力容器10中取出，与工具20一起收集异物。（C）版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2004245658A Nuclear reactor with built-in primary cooling water circulation pump 审中-公开
公开(公告)号：JP2004245658A
公开(公告)日：2004-09-02
申请号：JP2003034494
申请日：2003-02-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YASUDA KENICHI , SONEDA HIDEO , MATSUURA MASAYOSHI , TSUBAKI MASAAKI
IPC分类号： G21C15/02 , G21C15/243
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To uniformize the flow of cooling water in a plenum under a nuclear reactor and change discharged flow from a leg opening part to flow along the bottom of a nuclear reactor pressure vessel in the nuclear reactor.
SOLUTION: This nuclear reactor comprises a shroud support 13 in the nuclear reactor pressure vessel 1, a plurality of primary cooling water circulation pumps 2 distributedly disposed in the circumferential direction on the outer periphery of the shroud support 13, a plurality of shroud support legs 14, the large number of which more than that of the primary cooling water circulation pumps 2 is disposed so as to support the shroud support 13 on the nuclear reactor pressure vessel 1 at a position out of a line connecting the centers of the primary cooling water circulation pumps to the center of the shroud support 13 and only one of which is disposed at the position of the center of a disposition angle at least between the primary cooling water circulation pumps 2 adjacent to each other, and a plurality of leg openings formed between the shroud support legs 14.
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2002236193A METHOD AND DEVICE FOR MONITORING PERFORMANCE OF INTERNAL PUMP 失效
公开(公告)号：JP2002236193A
公开(公告)日：2002-08-23
申请号：JP2001030796
申请日：2001-02-07
申请人： HITACHI LTD
发明人： SONEDA HIDEO , YASUDA KENICHI , MORIYA KIMIAKI
IPC分类号： G21C17/00 , G01M99/00
摘要： PROBLEM TO BE SOLVED: To detect performance change of a pump in an early stage in an internal pump plant, and to specify the pump. SOLUTION: This internal pump performance monitoring device for a nuclear reactor 112 in which a cooling material is driven by the plural internal pumps 111 is provided with a pump performance ratio computing means 9 for reading pump part differential pressure ΔP, the number N of revolution in the pump, pump motor input electric power P of a motor 201 for driving the each pump, and a pump flow rate Q, which are measured in the each actual pump, to calculate a ratio of the motor input electric power in the actual pump to pump motor input electric power based on a test result conducted preliminarily outside a plant, and a pump performance display means 11 for displaying the calculated pump motor input electric power ratio, and for specifying the internal pump in which the change in the pump performance is determined to be generated when the pump motor input electric power ratio is reduced exceeding a preset threshold value.

9. 发明专利

JP2002224707A ROLLING METHOD AND EQUIPMENT OF ROLLING MILL FOR SHEET OR PLATE 失效
公开(公告)号：JP2002224707A
公开(公告)日：2002-08-13
申请号：JP2001027625
申请日：2001-02-05
申请人： HITACHI LTD
发明人： NISHI HIDETOSHI , NAKAMAE HIROKAZU , YASUDA KENICHI , HORII KENJI , MATSUI YOICHI , MAENO ICHIRO , KOBAYASHI HIDEO , YABE HARUYUKI
IPC分类号： B21B1/22 , B21B1/24 , B21B1/32 , B21B13/02 , B21B13/14 , B21B27/02 , B21B27/05 , B21B37/00 , B21B37/16 , B21B37/28 , B21B37/40 , B21B37/42
摘要： PROBLEM TO BE SOLVED: To provide roller method and equipment of rolling mills for sheets or plates capable of improving a edge drop vastly, reducing its variance and continuing rolling operation efficiently, without forming surface defects. SOLUTION: The rolling mills for sheets or plates that comprise a pair of top and bottom work rolls that roll sheets or plates, intermediate rolls that support the work rolls respectively and back-up rolls that support the intermediate rolls respectively. In the rolling method of these mills where part of the work rolls near one end is tapered and they are arranged oppositely along roll axis, there are the advantages that in rolling sheets or plates with same width, the position at the axial direction of the work rolls can be adjusted to a pre-determined position, and the crosswise thickness distribution of rolled stock can be controlled due to changing the position at the axial direction of the intermediate rolls.

10. 发明专利

JP2001232402A MILL AND METHOD FOR ROLLING METAL PLATE 失效
公开(公告)号：JP2001232402A
公开(公告)日：2001-08-28
申请号：JP2000046118
申请日：2000-02-23
申请人： HITACHI LTD
发明人： NIHEI MITSUO , YASUDA KENICHI , HIRAMA YUKIO , IGARI MINORU
IPC分类号： F16C13/00 , B21B1/22 , B21B13/14
摘要： PROBLEM TO BE SOLVED: To perform rolling suitable to hard materials and extra thin materials by supporting small-diameter work rolls with high reliability even under transient conditions such as the starting time of rolling work and completing time of the rolling work. SOLUTION: Non-driven both-end supporting rolls 9, 10, 11, 12 are installed at both ends on the outside of the region where sheets having the maximum width Wmax of the work roll 3 are passed through so as to be faced to each other on the inlet and outlet sides of each end part and the work rolls are pressed and supported by them. Hydrostatic bearings 21, 23 are installed in the middle part on both sides of the barrel of the work rolls 3, the work rolls 3 are floated by forming clearances between the hydrostatic bearings 21, 23 and the work rolls 3 by supplying fluid such as oil to the bearing parts from fluid pressure supply ports 25, 26 and supported in the horizontal direction in non-contact state. The proper floating height and supporting force are set or controlled by changing the supplying pressure of the fluid which is supplied to the hydrostatic bearings 21, 23.

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