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1. 发明授权

US4874574A Control rod 失效
标题翻译：控制杆
公开(公告)号：US4874574A
公开(公告)日：1989-10-17
申请号：US23230
申请日：1987-03-09
申请人： Takao Igarashi , Satoshi Sugawara , Yuichiro Yoshimoto , Shozo Saito , Takashi Fukumoto , Zenichiro Endo , Katsutoshi Shinbo
发明人： Takao Igarashi , Satoshi Sugawara , Yuichiro Yoshimoto , Shozo Saito , Takashi Fukumoto , Zenichiro Endo , Katsutoshi Shinbo
IPC分类号： G21C7/113
CPC分类号： G21C7/113 , G21Y2002/201 , G21Y2002/206 , G21Y2004/30 , Y02E30/39
摘要： A control rod has blades each of which includes a neutron absorption region in which neutron absorbers each loaded to the core of a reactor from below and made of absorption nuclear chain type neutron absorber are disposed. The neutron absorption region is divided into two, upper and lower, regions in an axial direction; the boundary between the upper and lower regions is positioned within the range of from 3/8 to 5/8 of the full length of the neutron absorption region in the axial direction from the lower end of the neutron absorption region; and the quantity of the absorption nuclear chain type neutron absorber contained in the lower region in the section perpendicular to the axial direction is smaller than the quantity of the absorption nuclear chain type neutron absorber contained in the upper region in the section perpendicular to the axial direction.
摘要翻译：控制杆具有叶片，每个叶片包括中子吸收区域，其中设置有从吸收核链型中子吸收器制成的从下方装载到反应器的核心的中子吸收体。中子吸收区域沿轴向分为两个，上部和下部区域; 上部和下部区域之间的边界位于从中子吸收区域的下端沿轴向的中子吸收区域全长的3/8至5/8的范围内; 并且与垂直于轴向的截面中包含在下部区域中的吸收核链型中子吸收剂的量小于垂直于轴向的截面中包含在上部区域中的吸收核链型中子吸收剂的量。

2. 发明授权

US4355002A Nuclear fuel assembly 失效
标题翻译：核燃料组件
公开(公告)号：US4355002A
公开(公告)日：1982-10-19
申请号：US841738
申请日：1977-10-13
申请人： Takanori Hosokawa , Hideo Maki , Katsutoshi Shinbo
发明人： Takanori Hosokawa , Hideo Maki , Katsutoshi Shinbo
IPC分类号： G21C3/28 , G21C3/328 , G21C3/00
CPC分类号： G21C3/328 , Y02E30/38
摘要： First nuclear fuel elements in which a fissionable material in which a burnable poison is incorporated is loaded and second nuclear fuel elements in which a fissionable material in which no burnable poison is incorporated is loaded are disposed in a nuclear fuel assembly. Content of the fissionable material in the first nuclear fuel element is less than about 72% of that of the fissionable material in the second nuclear fuel element adjacent to the first nuclear fuel element.
摘要翻译：其中装载有可燃烧毒物的可裂变材料的第一核燃料元件被装载，并且其中装载有不含可燃毒物的可裂变材料的第二核燃料元件被放置在核燃料组件中。第一核燃料元件中的可裂变材料的含量小于与第一核燃料元件相邻的第二核燃料元件中的可裂变材料的含量的约72％。

3. 发明授权

US4123326A Nuclear fuel element and method for fabricating the nuclear fuel element 失效
标题翻译：核燃料元件和制造核燃料元件的方法
公开(公告)号：US4123326A
公开(公告)日：1978-10-31
申请号：US578766
申请日：1975-05-19
申请人： Katsutoshi Shinbo
发明人： Katsutoshi Shinbo
IPC分类号： G21C3/16 , G21C3/17 , G21C3/02
CPC分类号： G21C3/16 , G21C3/17 , Y02E30/40
摘要： The opposite ends of a fuel cladding are sealed with end plugs. A plurality of UO.sub.2 pellets are charged into the fuel cladding. Defined in the lower portion of the fuel cladding is a gas plenum which houses fission products therein. Charged in the plenum defined in the nuclear fuel element is a material (such as boron carbide which absorbs neutrons and produces helium.
摘要翻译：燃料包层的相对端用端塞密封。多个UO2颗粒被填充到燃料包层中。定义在燃料包层的下部是在其中容纳裂变产物的气体增压室。在核燃料元件中限定的增压室中充电是一种材料（例如吸收中子并产生氦的碳化硼。

4. 发明授权

US4119489A Method of using nuclear reactor fuel assembly 失效
标题翻译：使用核反应堆燃料组件的方法
公开(公告)号：US4119489A
公开(公告)日：1978-10-10
申请号：US647455
申请日：1976-01-08
申请人： Kenichi Itoh , Katsutoshi Shinbo , Minoru Watahiki
发明人： Kenichi Itoh , Katsutoshi Shinbo , Minoru Watahiki
IPC分类号： G21C3/12 , G21C3/32 , G21C3/324 , G21C3/334 , G21C3/30
CPC分类号： G21C3/324 , G21C3/12 , G21C3/32 , G21C3/334 , Y02E30/40
摘要： A nuclear fuel assembly having a bundle of longitudinal fuel elements vertically disposed in a reactor vessel, an upper and a lower tie plate supporting the top and the bottom of the bundle of the fuel elements, a fully ended tubular channel covering around the bundle of the fuel elements to define a coolant flow passage. The channel is removably supported by the upper tie plate. After a predetermined operating period, the channel is pulled out from the fuel assembly, turned upside down and thereafter again inserted over the fuel assembly in a upended state so that the life time of the channel is elongated.
摘要翻译：一种核燃料组件，其具有垂直设置在反应器容器中的一束纵向燃料元件，支撑燃料元件束的顶部和底部的上部和下部连接板，围绕所述燃料元件的束的全端管状通道燃料元件以限定冷却剂流动通道。通道由上连接板可拆卸地支撑。在预定的操作期间之后，将通道从燃料组件中拉出来，并且被上下翻转，然后再次以上升状态插入燃料组件上，使得通道的使用寿命延长。

5. 发明授权

US4170516A Method of operating a nuclear reactor 失效
标题翻译：操作核反应堆的方法
公开(公告)号：US4170516A
公开(公告)日：1979-10-09
申请号：US674690
申请日：1976-04-07
申请人： Katsutoshi Shinbo , Takanori Hosokawa
发明人： Katsutoshi Shinbo , Takanori Hosokawa
IPC分类号： G21C7/00
CPC分类号： G21C7/00 , G21Y2002/201 , G21Y2002/207 , G21Y2004/40 , G21Y2004/401 , Y02E30/39
摘要： In raising the power of a nuclear reactor, before the linear heat generating rate of nuclear fuel elements arranged in the core of the nuclear reactor reaches 240 W/cm, the power rise of the reactor is suspended at least once and the reactor power is held at the fixed level. The raise of the power of the nuclear reactor before the arrival of the linear heat generating rate at 240 W/cm is performed by pulling out control rods inserted into the core. When the linear heat generating rate exceeds 240 W/cm, the power of the nuclear reactor is gradually raised in such a way that the linear heat generating rate is increased in a proportion of below about 1.8 W/cm/hour by increasing the flow rate of a coolant supplied to the core.
摘要翻译：在提高核反应堆的功率时，在核反应堆核心排列的核燃料元件的线性发热率达到240W / cm之前，反应堆的功率上升至少暂停一次，并保持反应堆的功率在固定的水平。通过拉出插入到芯中的控制棒，在线性发热率达到240W / cm之前提高核反应堆的功率。当线性发热率超过240W / cm时，核反应堆的功率逐渐升高，线性发热速率通过增加流量而以小于约1.8W / cm /小时的比例增加提供给芯的冷却剂。

6. 发明授权

US4153506A Method of starting operation of a nuclear reactor 失效
标题翻译：开始运行核反应堆的方法
公开(公告)号：US4153506A
公开(公告)日：1979-05-08
申请号：US723065
申请日：1976-09-14
申请人： Hideo Maki , Takanori Hosokawa , Katsutoshi Shinbo
发明人： Hideo Maki , Takanori Hosokawa , Katsutoshi Shinbo
IPC分类号： G21C7/00 , G21C7/06
CPC分类号： G21C7/00 , G21Y2002/103 , G21Y2002/104 , G21Y2004/40 , Y02E30/39
摘要： A method of starting operation of a nuclear reactor which contains fresh fuel rods comprising increasing a fuel power P(Kw/ft) produced by the fresh fuel rods to an amount determined by the following inequality;P
摘要翻译：一种开始运行包含新鲜燃料棒的核反应堆的方法，包括将由新鲜燃料棒产生的燃料功率P（Kw / ft）增加到由以下不等式确定的量; P <366x（G / D）-1。

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