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1. 发明授权

US5253278A Fuel assembly, channel box, production method of channel box, and core of nuclear reactor 失效
标题翻译：燃料组件，通道箱，通道箱的生产方法和核反应堆的核心
公开(公告)号：US5253278A
公开(公告)日：1993-10-12
申请号：US705723
申请日：1991-05-24
申请人： Toru Kanazawa , Osamu Yokomizo , Shin-ichi Kashiwai , Akihito Orii , Koji Nishida , Tatsuo Hayashi , Junjiro Nakajima
发明人： Toru Kanazawa , Osamu Yokomizo , Shin-ichi Kashiwai , Akihito Orii , Koji Nishida , Tatsuo Hayashi , Junjiro Nakajima
IPC分类号： G21C3/324 , G21C3/33 , G21C3/332 , G21C5/18 , G21C21/00 , G21C3/32
CPC分类号： G21C3/324 , G21C3/332 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A fuel assembly included a plurality of fuel rods, fuel spacers for maintaining gaps between the fuel rods and a channel box. The channel box includes spacer support portions projecting inwardly from an inner surface of the channel box and supporting the fuel spacer in a transverse direction and creep deformation inhibition portions disposed at the lower end portion of the channel box and projecting inwardly. The distance between the spacer support portions disposed to oppose one another in a horizontal direction is smaller than the distance between the creep deformation inhibition portions opposing one another in the horizontal direction.

2. 发明授权

US5640435A Fuel assembly and nuclear reactor 失效
公开(公告)号：US5640435A
公开(公告)日：1997-06-17
申请号：US214760
申请日：1994-03-18
申请人： Hideki Kurosaki , Junjiro Nakajima , Hajime Umehara , Shozo Nakamura , Satoshi Kanno , Koji Nishida , Yasunori Bessho , Masahisa Inagaki , Osamu Yokomizo , Yuichiro Yoshimoto
发明人： Hideki Kurosaki , Junjiro Nakajima , Hajime Umehara , Shozo Nakamura , Satoshi Kanno , Koji Nishida , Yasunori Bessho , Masahisa Inagaki , Osamu Yokomizo , Yuichiro Yoshimoto
IPC分类号： G21C3/322 , G21C3/328 , G21C3/32 , G21C15/02
CPC分类号： G21C3/328 , G21C2003/3225 , G21Y2002/201 , G21Y2002/302 , G21Y2002/401 , G21Y2004/30 , G21Y2004/40 , Y02E30/38
摘要： The lower end of each of a plurality of fuel rods is supported by a fuel supporting portion of a lower tie plate. The fuel supporting portion includes a plurality of second coolant paths for supplying a coolant from below the fuel supporting portion to a first coolant path defined above the fuel supporting portion and between the fuel rods. The total cross-sectional area of all the second coolant paths is smaller than the cross-sectional area of the first coolant path. A water rod disposed between the fuel rods each includes an ascending tube path having therein a coolant ascending path having a coolant inlet port opening to a region below the fuel supporting portion, for guiding upward the coolant supplied through the coolant inlet port, and a descending tube having therein a coolant descending path having a coolant delivery port opening to said first coolant path, for guiding downward the coolant guided by said coolant ascending path and discharging the coolant through the coolant delivery port to the first coolant path. The descending tube path is so disposed outside the ascending tube path as to define a gap, through which the coolant inside the first coolant path flows, between it and the ascending tube path.

3. 发明授权

US5617456A Fuel assembly and nuclear reactor 失效
标题翻译：燃料装配和核反应堆
公开(公告)号：US5617456A
公开(公告)日：1997-04-01
申请号：US463828
申请日：1995-06-05
申请人： Hideki Kurosaki , Junjiro Nakajima , Hajime Umehara , Shozo Nakamura , Satoshi Kanno , Koji Nishida , Yasunori Bessho , Masahisa Inagaki , Osamu Yokomizo , Yuichiro Yoshimoto
发明人： Hideki Kurosaki , Junjiro Nakajima , Hajime Umehara , Shozo Nakamura , Satoshi Kanno , Koji Nishida , Yasunori Bessho , Masahisa Inagaki , Osamu Yokomizo , Yuichiro Yoshimoto
IPC分类号： G21C3/328 , G21C21/00
CPC分类号： G21C3/328 , Y02E30/38
摘要： The lower end of each of a plurality of fuel rods is supported by a fuel supporting portion of a lower tie plate. The fuel supporting portion includes a plurality of second coolant paths for supplying a coolant from below the fuel supporting portion to a first coolant path defined above the fuel supporting portion and between the fuel rods. The total cross-sectional area of all the second coolant paths is smaller than the cross-sectional area of the first coolant path. A water rod disposed between the fuel rods each includes an ascending tube path having therein a coolant ascending path having a coolant inlet port opening to a region below the fuel supporting portion, for guiding upward the coolant supplied through the coolant inlet port, and a descending tube having therein a coolant descending path having a coolant delivery port opening to said first coolant path, for guiding downward the coolant guided by said coolant ascending path and discharging the coolant through the coolant delivery port to the first coolant path. The descending tube path is so disposed outside the ascending tube path as to define a gap, through which the coolant inside the first coolant path flows, between it and the ascending tube path.
摘要翻译：多个燃料棒的每一个的下端由下连接板的燃料支撑部支撑。燃料支撑部分包括多个第二冷却剂路径，用于将冷却剂从燃料支撑部分下方供应到限定在燃料支撑部分上方和燃料棒之间的第一冷却剂路径。所有第二冷却剂通道的总截面积小于第一冷却剂通道的横截面面积。设置在燃料棒之间的水杆各自包括上升管路，其中具有冷却剂上升路径，其具有通向燃料支撑部分下方的区域的冷却剂入口，用于向上引导通过冷却剂入口提供的冷却剂，其中具有冷却剂下降路径，其具有通向所述第一冷却剂路径的冷却剂输送口，用于向下引导由所述冷却剂上升路径引导的冷却剂并将冷却剂通过冷却剂输送端口排出到第一冷却剂路径。下降的管道设置在上升管道的外侧，以便限定第一冷却剂路径内的冷却剂在其与上升的管道之间流动的间隙。

4. 发明授权

US5432829A Fuel assembly and reactor core 失效
标题翻译：燃料组件和反应堆堆芯
公开(公告)号：US5432829A
公开(公告)日：1995-07-11
申请号：US996774
申请日：1992-12-23
申请人： Motoo Aoyama , Taro Ueki , Akinobu Nakajima , Yoko Ishibashi , Kunitoshi Kurihara , Osamu Yokomizo , Yasuhiro Masuhara , Junichi Yamashita , Yasunori Bessho , Junjiro Nakajima
发明人： Motoo Aoyama , Taro Ueki , Akinobu Nakajima , Yoko Ishibashi , Kunitoshi Kurihara , Osamu Yokomizo , Yasuhiro Masuhara , Junichi Yamashita , Yasunori Bessho , Junjiro Nakajima
IPC分类号： G21C3/326 , G21C3/328 , G21C3/32
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly comprises fuel rods arrayed in a square lattice pattern of 10 rows and 10 columns, and three large-diameter water rods arranged along a diagonal line of the fuel assembly in such a region as able to accommodate 10 fuel rods. Partial length fuel rods are arranged in an outermost layer of the fuel rod array at fuel rod setting positions other than corners of the outermost layer. Ordinary fuel rods are arranged in a layer inside the outermost layer and adjacent to the outermost layer at positions adjacent to the partial length fuel rods in the outermost layer.The struction of the fuel assembly enables a reduction in the void coefficient and an improvement in the reactivity control capability. Also, the void coefficient can be reduced without lowering reactivity, and fuel economy is improved.
摘要翻译：燃料组件包括排列成10行10列的正方形格子图案的燃料棒和沿着能够容纳10个燃料棒的区域沿着燃料组件的对角线布置的三个大直径水棒。部分长度的燃料棒布置在燃料棒阵列的最外层的燃料棒设置位置，而不是最外层的角。普通燃料棒布置在最外层内的层中，并且与最外层中的部分长度燃料棒相邻的位置处邻近最外层。燃料组件的结构能够减小空隙系数并提高反应性控制能力。而且，可以降低空隙系数而不降低反应性，并且提高燃料经济性。

5. 发明授权

US5128098A Fuel assembly 失效
标题翻译：燃油总成
公开(公告)号：US5128098A
公开(公告)日：1992-07-07
申请号：US639256
申请日：1991-01-09
申请人： Shozo Nakamura , Tadashi Mizuno , Junjiro Nakajima , Yoshihiko Yanagi , Hajime Umehara , Tetsuo Yasuda , Akira Maru , Junichi Yamashita , Yuichiro Yoshimoto , Tatsuo Hayashi
发明人： Shozo Nakamura , Tadashi Mizuno , Junjiro Nakajima , Yoshihiko Yanagi , Hajime Umehara , Tetsuo Yasuda , Akira Maru , Junichi Yamashita , Yuichiro Yoshimoto , Tatsuo Hayashi
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , Y02E30/38
摘要： A fuel assembly comprises a plurality of fuel rods, a lower tie plate for supporting lower ends of the fuel rods, and a channel box surrounding a bundle of the fuel rods and the circumference of the lower tie plate to thereby define a cooling water leak passage between the lower tie plate and the channel box. The fuel assembly includes a venturi provided in the lower tie plate for generating a force tending to attract the channel box toward the lower tie plate under the action of a leak stream of the cooling water passing through the cooling water leak passage. The fuel assembly also includes an arrangement provided in the lower tie plate for suppressing vibrations of the channel box caused upon an influence of the venturi.
摘要翻译：燃料组件包括多个燃料棒，用于支撑燃料棒的下端的下连接板，以及围绕燃料棒束和下连接板的圆周的通道箱，从而限定冷却水泄漏通道在下连接板和通道箱之间。燃料组件包括设置在下连接板中的文氏管，用于在通过冷却水泄漏通道的冷却水的泄漏流的作用下产生倾向于将通道箱吸引到下连接板的力。燃料组件还包括设置在下连接板中用于抑制文丘里管的影响引起的通道箱振动的装置。

6. 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。

7. 发明授权

US5490192A Fuel assembly 失效
标题翻译：燃油组件
公开(公告)号：US5490192A
公开(公告)日：1996-02-06
申请号：US247854
申请日：1994-05-23
申请人： Junjiro Nakajima , Koji Nishida , Satoshi Kanno , Tadashi Mizuno , Yasunori Bessho , Masahisa Inagaki , Yasuhiro Aizawa
发明人： Junjiro Nakajima , Koji Nishida , Satoshi Kanno , Tadashi Mizuno , Yasunori Bessho , Masahisa Inagaki , Yasuhiro Aizawa
IPC分类号： G21C3/344 , G21C3/34
CPC分类号： G21C3/344 , G21Y2002/101 , G21Y2004/302 , Y02E30/40
摘要： A fuel assembly comprises a plurality of fuel rods, tie plates for holding both ends of these fuel rods, and spacers which support these fuel rods. The spacer comprises a plurality of cells into which the fuel rods are inserted respectively, the adjacent cells being joined to each other at axial ends thereof, whereby a space between these cells being held or retained, and a plurality of loop springs held respectively on the cells. Each of the loop springs has a pair of resilient members which are located within the pair of adjacent cells and which urge the fuel rods in a radial direction, and a pair of connections which connect axial ends of the resilient members to each other. Each of the connections have a passage through which coolant flows axially and which is defined by a closed peripheral wall. The closed peripheral wall is not uniform in thickness. The pair of adjacent cells have at axial end portions of peripheral walls openings for accommodating or receiving the connections of the loop spring.
摘要翻译：燃料组件包括多个燃料棒，用于保持这些燃料棒的两端的连接板以及支撑这些燃料棒的间隔件。间隔件包括分别插入燃料棒的多个单元，相邻的单元在其轴向端部彼此接合，由此保持或保持这些单元之间的空间，以及分别保持在该单元上的多个环形弹簧细胞。每个环形弹簧具有一对弹性构件，该弹性构件位于一对相邻的单元内并且沿径向推动燃料棒，以及将弹性构件的轴向端部彼此连接的一对连接件。每个连接件都有一个通道，冷却剂通过该通道轴向流动，并由封闭的外围壁限定。封闭的周边壁厚度不均匀。一对相邻的单元具有用于容纳或接收环形弹簧的连接的外围壁开口的轴向端部。

8. 发明授权

US5383229A Fuel assembly and reactor core 失效
标题翻译：燃料组件和反应堆堆芯
公开(公告)号：US5383229A
公开(公告)日：1995-01-17
申请号：US879
申请日：1993-01-05
申请人： Akinobu Nakajima , Yoko Ishibashi , Motoo Aoyama , Kunitoshi Kurihara , Junichi Yamashita , Junjiro Nakajima , Koji Nishida
发明人： Akinobu Nakajima , Yoko Ishibashi , Motoo Aoyama , Kunitoshi Kurihara , Junichi Yamashita , Junjiro Nakajima , Koji Nishida
IPC分类号： G21C3/328 , G21C3/32
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A second fuel rod positioned at each corner of a channel box and second fuel rods adjacent to the former are formed to have a smaller outer diameter than that of ordinary first fuel rods, so that a pitch between the second fuel rods is narrower than a pitch between the first fuel rods. Making the outer diameter of the second fuel rods smaller than that of the first fuel rods reduces the power per unit length of the second fuel rods. The narrower pitch between the second fuel rods than the pitch between the first fuel rods provides two effects. First, a unit lattice cell becomes so small as to avoid an increase in the H/U ratio. Secondly, a new moderator region is formed between the second fuel rods and the first fuel rods adjacent thereto, the moderator region acting to intensify thermal neutron flux around those first fuel rods. These two effects enable a further reduction in the power per unit length of the second fuel rods. As a result, a fuel assembly intended for higher burn-up can be realized by increasing enrichment, while suppressing an increase in the local power peaking factor at corners of the fuel assembly.
摘要翻译：定位在通道箱的每个角落处的第二燃料棒和与前者相邻的第二燃料棒形成为具有比普通的第一燃料棒小的外径，使得第二燃料棒之间的间距比间距窄在第一燃料棒之间。使得第二燃料棒的外径小于第一燃料棒的外径减小了第二燃料棒的每单位长度的功率。第二燃料棒之间的间距窄于第一燃料棒之间的间距，提供了两个效果。首先，单位晶胞变得如此小以避免H / U比的增加。其次，在第二燃料棒和与其相邻的第一燃料棒之间形成新的慢化剂区域，该慢化剂区域用于加强围绕这些第一燃料棒的热中子通量。这两个效果使得能够进一步降低第二燃料棒的每单位长度的功率。结果，可以通过增加浓缩来实现用于更高燃耗的燃料组件，同时抑制燃料组件的角落处的局部功率峰值因数的增加。

9. 发明授权

US5862194A Zirconium based alloy of low irradiation growth, method of producing the same, and use of the same 失效
标题翻译：低辐照生长的锆基合金及其制造方法及其用途
公开(公告)号：US5862194A
公开(公告)日：1999-01-19
申请号：US814337
申请日：1997-03-11
申请人： Tadashi Fujieda , Masahisa Inagaki , Iwao Takase , Junjiro Nakajima , Rinichi Asano , Takehiro Seto
发明人： Tadashi Fujieda , Masahisa Inagaki , Iwao Takase , Junjiro Nakajima , Rinichi Asano , Takehiro Seto
IPC分类号： C22C16/00 , C22F1/18 , G21C3/07 , G21C3/324 , C22F1/16
CPC分类号： C22C16/00 , C22F1/186 , G21C3/07 , G21Y2004/10 , Y02E30/40
摘要： The present invention provides a zirconium based alloy member which has very small deformation of elongation and bow occurring due to irradiation growth, a method of manufacturing it, and particularly an channel box for an atomic reactor fuel assembly. A zirconium based alloy plate member having a width of not less than 100 mm and a long length, containing not more than 5 wt % Nb and/or not more 5 wt % Sn, the member having (0001) orientation (Fl value) of hexagonal Zr with respect to longitudinal direction ranging from 0.20 to 0.35, the difference in Fl between the middle and the end being not more than the value calculated from (0.0935.times.Fl-0.00585) and an amount of bow at neutron irradiation of 35 GWd/t which bow occurs in the channel box for a reactor being not more than 2.16 mm.
摘要翻译：本发明提供一种锆基合金构件，其由于照射生长而具有非常小的伸长变形和弓形，其制造方法，特别是用于原子反应堆燃料组件的通道箱。一种宽度不小于100mm，长度不大于5重量％的Nb和/或不多于5重量％Sn的锆基合金板构件，具有（0001）取向（F1值）为相对于纵向为0.20〜0.35的六方晶相，中间和末端之间的F1的差不大于由（0.0935xFl-0.00585）计算的值，中子照射下的弓的量为35GWd / t 在弯道出现弯道不大于2.16mm的反应堆。

10. 发明授权

US5297177A Fuel assembly, components thereof and method of manufacture 失效
标题翻译：燃料组件及其组件及制造方法
公开(公告)号：US5297177A
公开(公告)日：1994-03-22
申请号：US948030
申请日：1992-09-21
申请人： Masahisa Inagaki , Masayoshi Kanno , Hiromasa Hirakawa , Hideaki Ishizaki , Nobukazu Yamamoto , Hideo Maki , Junjiro Nakajima , Shozo Nakamura , Satoshi Kanno
发明人： Masahisa Inagaki , Masayoshi Kanno , Hiromasa Hirakawa , Hideaki Ishizaki , Nobukazu Yamamoto , Hideo Maki , Junjiro Nakajima , Shozo Nakamura , Satoshi Kanno
IPC分类号： C22F1/18 , G21C3/06 , G21C3/07 , G21C3/30 , G21C3/324 , G21C3/326 , G21C3/34
CPC分类号： C22F1/186 , G21C3/07 , G21Y2002/104 , G21Y2004/10 , G21Y2004/30 , Y02E30/40 , Y10S376/90
摘要： A fuel assembly, where crystallographic orientations of a channel box are brought into a random distribution; and cladding tubes, spacers and a channel box are made from highly corrosion-resistant, Fe--Ni, zirconium-based alloy, hardened in the (.alpha.+.beta.) phase or .beta.-phase temperature region, has an average discharge burnup level of 50 to 550 GWd/t.
摘要翻译：燃料组件，其中通道箱的晶体取向被带入随机分布; 并且包覆管，间隔件和通道箱由在（（α）+（β））相或（β）相温度区域硬化的高耐腐蚀性Fe-Ni，锆基合金制成，具有平均排放燃耗水平为50〜550 GW / t。

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