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1. 发明授权

US5528641A Fuel assembly 失效
标题翻译：燃油组件
公开(公告)号：US5528641A
公开(公告)日：1996-06-18
申请号：US357261
申请日：1994-12-13
申请人： Kenichi Takeuchi , Koji Nishida , Yasunori Bessho , Yukihisa Fukasawa , Junjiro Nakajima
发明人： Kenichi Takeuchi , Koji Nishida , Yasunori Bessho , Yukihisa Fukasawa , Junjiro Nakajima
IPC分类号： G21C3/326 , G21C3/322 , G21C7/27 , G21C3/32
CPC分类号： G21C3/322 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/302 , G21Y2004/403 , Y02E30/38
摘要： A fuel assembly is provided with a coolant ascending path for making coolant rise and a water rod having a coolant descending path for conducting the coolant.A ratio of a flow area in a coolant inlet port of the smallest in coolant ascending path 13 on the downstream side than large diameter tube portion 3E to a flow area of the largest in the axial direction of coolant ascending path 13 in large diameter tube portion 3E is set to be 0.2-20%.In the normal operation, the declination degree from the liquid level in the coolant ascending path, corresponding to the coolant flow rate of the liquid level formed in the coolant ascending path can be controlled. Further, at the time of the excess the change speed of the liquid level can also be controlled.
摘要翻译：燃料组件设置有用于使冷却剂升起的冷却剂上升路径和具有用于导引冷却剂的冷却剂下降路径的水杆。在大直径管部3E的下游侧的冷却剂上升路径13中的最小的冷却剂入口的流入面积与大径管部中的冷却剂上升路径13的轴向上最大的流动面积的比 3E设定为0.2〜20％。在正常操作中，可以控制与冷却剂上升路径中形成的液面的冷却剂流量相对应的冷却剂上升路径中的液位的偏角度。此外，在过量时，也可以控制液面的变化速度。

2. 发明授权

US06477218B1 Control system of nuclear power plant, and control method thereof 有权
标题翻译：核电厂控制系统及其控制方法
公开(公告)号：US06477218B1
公开(公告)日：2002-11-05
申请号：US09345737
申请日：1999-07-01
申请人： Yukihisa Fukasawa
发明人： Yukihisa Fukasawa
IPC分类号： G21C700
CPC分类号： G21C17/00 , G21D3/00 , G21Y2002/203 , G21Y2002/205 , G21Y2002/207 , G21Y2002/304 , G21Y2004/40 , Y02E30/39
摘要： A control system, and a control method, of a nuclear power plant capable of easily executing automatic output regulation by an automatic power regulator system even when a lower-accuracy maximum linear heat generation rate and a lower-accuracy minimum critical power ratio are determined in a short cycle by using brief calculation. While a core monitoring system does not calculate a maximum linear heat generation rate and a minimum critical power ratio, they are determined by utilizing the maximum linear heat generation rate and the minimum critical power ratio calculated by the core monitoring system as well as plant data, and the lower-accuracy maximum linear heat generation rate and the lower-accuracy minimum critical power ratio so determined are compared with predetermined thermal limit values. The automatic power regulator system holds a control signal when at least one of the lower-accuracy maximum linear heat generation rate and the lower-accuracy minimum critical power ratio exceeds the predetermined thermal limit values.
摘要翻译：即使在较低精度的最大线性热产生率和较低精度的最小临界功率比被确定的情况下，能够通过自动功率调节系统容易执行自动输出调节的核电站的控制系统和控制方法通过使用简短的计算一个短周期。虽然核心监测系统不计算最大线性热产生率和最小临界功率比，但它们通过利用由核心监测系统计算的最大线性热产生率和最小临界功率比以及工厂数据来确定，将如此确定的较低精度的最大线性热产生率和较低精度的最小临界功率比与预定的热限制值进行比较。当低精度最大线性热产生率和低精度最小临界功率比中的至少一个超过预定的热限制值时，自动功率调节器系统保持控制信号。

3. 发明授权

US5128097A Reactor core, fuel assembly and fuel spacer 失效
标题翻译：反应堆核心，燃料组件和燃料间隔
公开(公告)号：US5128097A
公开(公告)日：1992-07-07
申请号：US449916
申请日：1989-12-14
申请人： Yukihisa Fukasawa , Akira Nishimura , Junichi Yamashita , Michihiro Ozawa
发明人： Yukihisa Fukasawa , Akira Nishimura , Junichi Yamashita , Michihiro Ozawa
IPC分类号： G21C3/328 , G21C3/344 , G21C5/02 , G21C5/12
CPC分类号： G21C3/344 , G21C3/328 , G21C5/02 , Y02E30/38
摘要： Herein disclosed is a reactor core including a plurality of fuel assemblies having a plurality of fuel rods. In a central region of the transverse section of the fuel assembly, a plurality of fuel rods are arranged in the form of a square lattice. In the peripheral region surrounding the central region, a plurality of fuel rods are arranged in the form of triangular lattice. The pitch of the fuel rods arranged in the square lattice form is equal to that of the fuel rods arranged in the triangular lattice form. With the arrangement of the fuel rods in the triangular lattice form in the peripheral region, the ratio of the moderator to the fuel of the peripheral region is smaller than that of the central region. As a result, the local power peaking drops. Since the arrangement of the fuel rods is partially in the triangular lattice form, the pitch of the fuel rods can be increased to augment the MCPR.
摘要翻译： PCT No.PCT / JP89 / 00582 Sec。 371日期1989年12月14日第 102（e）1989年12月14日的PCT日期1989年6月7日PCT。此外，公开了一种反应堆堆芯，其包括具有多个燃料棒的多个燃料组件。在燃料组件的横截面的中心区域中，多个燃料棒以正方形格子的形式布置。在围绕中心区域的周边区域中，多个燃料棒以三角形晶格的形式布置。以正方形格子形式布置的燃料棒的螺距等于以三角格子形式布置的燃料棒的螺距。由于周边区域中的三角格子形式的燃料棒的配置，周边区域的调节剂与燃料的比例小于中央区域的比例。结果，当地的电力峰值下降。由于燃料棒的布置部分是三角形格子形状，所以可以增加燃料棒的间距以增加MCPR。

4. 发明授权

US5317606A Automation system for nuclear power plants 失效
标题翻译：核电厂自动化系统
公开(公告)号：US5317606A
公开(公告)日：1994-05-31
申请号：US571220
申请日：1990-08-23
申请人： Mitsuo Kinoshita , Takaharu Fukuzaki , Kanji Kato , Akira Nishimura , Yuichi Higashikawa , Yoshiyuki Miyamoto , Yukihisa Fukasawa , Kazuo Asami , Koji Kurokawa , Tatsuo Hayashi
发明人： Mitsuo Kinoshita , Takaharu Fukuzaki , Kanji Kato , Akira Nishimura , Yuichi Higashikawa , Yoshiyuki Miyamoto , Yukihisa Fukasawa , Kazuo Asami , Koji Kurokawa , Tatsuo Hayashi
IPC分类号： G21C7/00 , G21D3/00 , G21D3/04 , G21D3/06 , G21C7/36
CPC分类号： G21D3/04 , Y02E30/40
摘要： This invention relates to an automation system for nuclear power plants. This system comprises operation plan making means, supervisory control means, and control means for controlling controlled objects. The operation plan making means makes a new operation plan to restore a normal operating condition which existed before the plant condition deviated from the normal operation range. The supervisory control means outputs control commands according to an operation plan under abnormal condition when the plant operating condition deviates from the normal operation range. Furthermore, the supervisory control means outputs control commands according a new operation plan prepared by the operation plan making means after an operation according to an operation plan under abnormal condition has been finished. The control means for controlling controlled objects controls the controlled objects according to control commands output from the supervisory control means.
摘要翻译：本发明涉及一种用于核电站的自动化系统。该系统包括操作计划制作装置，监控装置和用于控制受控对象的控制装置。操作计划制定装置进行新的操作计划，以恢复在工厂条件偏离正常操作范围之前存在的正常操作条件。当工厂工作状态偏离正常工作范围时，监控控制装置根据异常状态下的运行计划输出控制命令。此外，在根据异常状态下的运行方案的运转结束之后，监视控制装置根据由运行计划制定装置准备的新的运行计划输出控制命令。用于控制受控对象的控制装置根据从监视控制装置输出的控制命令来控制受控对象。

5. 发明授权

US5192496A Fuel assembly and upper tie plate thereof 失效
标题翻译：燃油组件及其上板
公开(公告)号：US5192496A
公开(公告)日：1993-03-09
申请号：US724168
申请日：1991-07-01
申请人： Hideo Soneda , Junichi Yamashita , Yukihisa Fukasawa , Taro Ueki , Sadayuki Izutsu
发明人： Hideo Soneda , Junichi Yamashita , Yukihisa Fukasawa , Taro Ueki , Sadayuki Izutsu
IPC分类号： G21C3/33 , G21C3/322 , G21C3/326 , G21C3/328
CPC分类号： G21C3/322 , G21C3/326 , Y02E30/38
摘要： The fuel assembly has fuel arrangement of a square lattice of 10 lines by 10 rows. Four water rods having a large diameter are arranged in central region of horizontal cross section wherein arrangement of 12 fuel rods is possible. The four water rods having a large diameter are so arranged adjacently in a circle as to form an internal between each other. First coolant flow path which is extended toward axial direction is formed by surrounded with the water rods having a large diameter. The first coolant flow path leads to third coolant flow path which is formed around the fuel rods through second coolant flow path which is the interval between the water rods having a large diameter.The fuel assembly is able to optimize the moderator to fuel atom number density ratio and to reduce the pressure loss because a portion to be an excessively moderated region is utilized as the first coolant flow path.
摘要翻译：燃料组件具有10行×10行的正方格子的燃料排列。具有大直径的四个水杆布置在水平横截面的中心区域，其中12个燃料棒的布置是可能的。具有大直径的四个水杆被以相邻的方式排列成彼此形成内部。朝向轴向方向延伸的第一冷却剂流动路径由具有大直径的水棒包围而形成。第一冷却剂流动路径通向第二冷却剂流动路径，该第三冷却剂流动路径通过作为具有大直径的水棒之间的间隔的第二冷却剂流动路径形成在燃料棒周围。燃料组件能够将减速器优化为燃料原子数密度比，并且由于将过度缓和区域的部分用作第一冷却剂流动路径，所以能够减小压力损失。

6. 发明授权

US06553090B2 Control system of nuclear power plant, and control method thereof 有权
公开(公告)号：US06553090B2
公开(公告)日：2003-04-22
申请号：US10038616
申请日：2002-01-08
申请人： Yukihisa Fukasawa
发明人： Yukihisa Fukasawa
IPC分类号： G21C700
CPC分类号： G21C17/00 , G21D3/00 , G21Y2002/203 , G21Y2002/205 , G21Y2002/207 , G21Y2002/304 , G21Y2004/40 , Y02E30/39
摘要： A method of controlling a nuclear power plant includes determining a first maximum linear heat generation rate and a first minimum critical power ratio by a core monitoring system, and determining a second maximum linear heat generation rate and a second minimum critical power ratio by utilizing the first maximum linear heat generation rate and the first minimum critical power ratio determined by the core monitoring system and plant data. The second maximum linear heat generation rate and the second minimum critical power ratio are compared with predetermined thermal limit values and a control signal outputted from an automatic power regulator system to a re-circulation flow control system and to a control rod control system is held when at least one of the second maximum linear heat generation rate and the second minimum critical power ratio exceeds the predetermined thermal limit values.

7. 发明授权

US5217678A Gang control-rod controlling system and reactor operation method 失效
标题翻译：钢管控制系统和反应堆运行方式
公开(公告)号：US5217678A
公开(公告)日：1993-06-08
申请号：US916697
申请日：1992-07-22
申请人： Yukihisa Fukasawa
发明人： Yukihisa Fukasawa
IPC分类号： G21C7/00 , G21C7/08
CPC分类号： G21C7/08 , G21Y2002/201 , G21Y2002/206 , G21Y2004/40 , G21Y2004/401 , Y02E30/39
摘要： A storage 14 of a unit 13 constituting a gang control-rod operating unit stores an A type pattern sequence for configuring an A type control rod pattern, a B type pattern sequence for configuring a B type control rod pattern, and a control rod pattern exchange sequence. The control rod pattern exchange sequence comprises groups subsequent to 5 in the A type sequence and groups subsequent to 5 in the B type sequence. A control panel includes a sequence select switch 12a, a control rod group select switch 12b, and an insert/withdraw select switch 12c. In exchanging the control rod pattern, an operator actuates the sequence select switch 12a to select the control rod pattern exchange sequence, and then actuates the control rod group select switch 12b and the insert/withdraw select switch 12c to operate a plurality of control rods at the same time for carrying out the pattern exchange. The operation of exchanging the control rod pattern is facilitated and reliability is improved. Selection of the control rod pattern exchange sequence is allowed only when reactor power is above a set value at which an RWM 17 is to be released.
摘要翻译：构成组合控制杆操作单元的单元13的存储器14存储用于配置A型控制棒图案的A型图案序列，用于配置B型控制棒图案的B型图案序列和控制棒图案交换序列。对照杆模式交换序列包括在A型序列中的5个之后的组以及在B型序列中的5个之后的组。控制面板包括顺序选择开关12a，控制棒组选择开关12b和插入/取出选择开关12c。在更换控制杆图案时，操作者致动顺序选择开关12a以选择控制棒图案交换顺序，然后致动控制棒组选择开关12b和插入/取出选择开关12c以操作多个控制杆同时进行模式交换。便于更换控制棒图形的操作，提高了可靠性。仅当反应堆功率高于要释放RWM 17的设定值时才允许选择控制棒图形交换顺序。

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