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1. 发明授权

EP2267726B1 Light water reactor core and fuel assembly 有权
标题翻译：轻水反应堆堆芯和燃料组件
公开(公告)号：EP2267726B1
公开(公告)日：2015-05-13
申请号：EP10009458.0
申请日：2000-09-14
申请人： Hitachi, Ltd.
发明人： Takeda, Renzo , Aoyama, Motoo , Miwa, Junichi , Ikegawa, Tomohiko
IPC分类号： G21C1/08 , G21C3/32 , G21C3/326 , G21C5/02 , G21C7/117
CPC分类号： G21C3/32 , G21C1/08 , G21C3/326 , G21C5/02 , G21C7/117 , Y02E30/31 , Y02E30/38

2. 发明公开

EP0447108A1 Fuel assembly and nuclear reactor 失效
标题翻译： Brennstabbündelund Kernreaktor。
公开(公告)号：EP0447108A1
公开(公告)日：1991-09-18
申请号：EP91301841.2
申请日：1991-03-06
申请人： HITACHI, LTD.
发明人： Ishii, Kazuya , Aoyama, Motoo , Ishii, Yoshihiko , Uchikawa, Sadao , Takeda, Renzo , Yokomizo, Osamu
IPC分类号： G21C3/326
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2002/207 , G21Y2004/10 , G21Y2004/30 , Y02E30/38
摘要： A high conversion nuclear reactor core (5) has fuel assemblies (1) made up from large numbers of axially-extending uranium-plutonium mixed oxide fuel rods (3). The fuel rods (3) are densely packed so as to give a high conversion ratio of fissile substances, preferably approaching unity. The average plutonium enrichment in the assemblies (1) is higher in their bottom, upstream halves (15) than in their top, downstream halves (11). This has the effect of reducing a potentially dangerously high void coefficient in the core (5).
摘要翻译：高转换核反应堆核心（5）具有由大量轴向延伸的铀 - 钚混合氧化物燃料棒（3）制成的燃料组件（1）。燃料棒（3）被密集地包装，以便提供高的易裂变物质的转化率，优选接近一致。组件（1）中的平均钚浓缩在其底部，上半部分（15）中比在其顶部，下游半部（11）中更高。这具有减少芯（5）中潜在危险的高空隙系数的效果。

3. 发明授权

EP1085525B1 Light water reactor core and fuel assembly 有权
标题翻译：轻水反应堆堆芯和燃料组件
公开(公告)号：EP1085525B1
公开(公告)日：2013-04-17
申请号：EP00119440.6
申请日：2000-09-14
申请人： Hitachi, Ltd.
发明人： Takeda, Renzo , Aoyama, Motoo , Miwa, Junichi , Ikegawa, Tomohiko
IPC分类号： G21C1/08 , G21C3/32 , G21C5/00
CPC分类号： G21C3/32 , G21C1/08 , G21C3/326 , G21C5/02 , G21C7/117 , Y02E30/31 , Y02E30/38

4. 发明公开

EP0691657A1 Reactor core for a light water cooled reactor, fuel assembly and control rod 失效
标题翻译： Spaltzonefürmit LeichtwassergekühltenReaktor，Brennstabbündelund Steuerstab
公开(公告)号：EP0691657A1
公开(公告)日：1996-01-10
申请号：EP95110557.6
申请日：1995-07-06
申请人： HITACHI, LTD.
发明人： Takeda, Renzo , Aoyama, Motoo , Moriwaki, Masanao
IPC分类号： G21C1/00 , G21C3/00 , G21C7/113
CPC分类号： G21C1/084 , G21C1/00 , G21C3/00 , G21C7/113 , G21Y2002/201 , G21Y2002/601 , G21Y2004/101 , G21Y2004/30 , G21Y2004/60 , Y02E30/31 , Y02E30/39
摘要： The present invention has as an object to provide a reactor core for light water cooled reactor, a fuel assembly (3, 4) and a control rod (5, 10) intended for Pu multi-recycling at a breeding ratio of about 1.0, or 1.0 or more while keeping the economical or safety performance to the same level as in BWR now under operation, that is, while minimizing the change for the incore structures and maintaining the void coefficient negative.
A reactor core for a light water cooled reactor having an effective fuel-to-water volume ratio of 0.1 to 0.6 by the combination of a dense lattice fuel assembly (1) constituted of fuel rods formed by adding Pu to degraded uranium, natural uranium, depleted uranium or low concentrated uranium, coolants at high void fraction of 45 % to 70 % and a cluster-type, Y-type or cruciform control rod.
摘要翻译：本发明的目的是提供一种用于轻水冷却反应器的反应堆芯，一种燃料组件（3,4）和一个控制棒（5,10），用于以约1.0的育种比例进行Pu多重循环，或者 1.0或更多，同时将经济或安全性能保持在与现在正在运行的BWR相同的水平，即尽可能减少腋窝结构的变化并保持空隙系数为负。一种用于轻水冷却反应器的反应堆芯，其特征在于通过将Pu加入到退化的铀，天然铀，天然铀中形成的由燃料棒组成的致密格子状燃料组件（1）的组合，具有有效的燃料与水的体积比为0.1至0.6，贫铀或低浓铀，高空隙率为45％至70％的冷却剂和簇型Y型或十字形控制棒。

5. 发明授权

EP0284016B1 Fuel assembly 失效
标题翻译：燃油总成
公开(公告)号：EP0284016B1
公开(公告)日：1992-01-29
申请号：EP88104556.1
申请日：1988-03-22
申请人： HITACHI, LTD.
发明人： Aoyama, Motoo , Bessho, Yasunori , Uchikawa, Sadao , Takeda, Renzo , Ishii, Yoshihiko
IPC分类号： G21C3/00
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38

6. 发明授权

EP0086427B1 Fuel assembly for boiling water reactor 失效
标题翻译：锅炉水反应堆燃料组件
公开(公告)号：EP0086427B1
公开(公告)日：1986-05-28
申请号：EP83101133.3
申请日：1983-02-07
申请人： Hitachi, Ltd.
发明人： Takeda, Renzo , Miki, Kazuyoshi , Ohga, Yukiharu , Fuse, Motomasa , Aoyama, Motoo , Hiramoto, Kazuo
IPC分类号： G21C3/32
CPC分类号： G21C3/328 , G21C3/326 , G21Y2002/201 , G21Y2002/303 , G21Y2002/50 , G21Y2004/10 , G21Y2004/30 , Y02E30/31 , Y02E30/38

7. 发明公开

EP2267726A2 Light water reactor core and fuel assembly 有权
标题翻译： Leichtwasserreaktorkern undBrennstabbündel
公开(公告)号：EP2267726A2
公开(公告)日：2010-12-29
申请号：EP10009458.0
申请日：2000-09-14
申请人： Hitachi, Ltd.
发明人： Takeda, Renzo , Aoyama, Motoo , Miwa, Junichi , Ikegami, Tomohiko
IPC分类号： G21C1/08 , G21C3/32 , G21C5/00
CPC分类号： G21C3/32 , G21C1/08 , G21C3/326 , G21C5/02 , G21C7/117 , Y02E30/31 , Y02E30/38
摘要： The present invention relates to a light water reactor core comprising fuel which is enriched by adding plutonium or plutonium and other actinoides to a uranium containing at least one of a depleted uranium, natural uranium, a degraded uranium and a low enriched uranium, which further comprises:
fuel assemblies (1) having fuel rods (4) arranged in a triangular lattice configuration; and
at least one control rod (5) to be inserted into said fuel assemblies (1), wherein said at least one control rod (5) is employed as at least one absorption rod having an outer diameter larger than that of said fuel rods (4) and having a transverse cross-sectional area larger than the cross-sectional area of a unit lattice cell of the fuel rod (4).
摘要翻译：本发明涉及一种轻水反应堆核心，其包括通过向含有贫化铀，天然铀，降解铀和低浓铀中的至少一种的铀添加钚或钚和其他锕系元素而富集的燃料，其还包含：燃料组件（1）具有布置成三角形格架构的燃料棒（4）以及要插入所述燃料组件（1）中的至少一个控制杆（5），其中所述至少一个控制杆（5）用作至少一个具有大于所述燃料棒的外径的吸收杆（并且横截面积大于燃料棒（4）的单元晶格单元的横截面面积。

8. 发明授权

EP0447108B1 Fuel assembly and nuclear reactor 失效
标题翻译：的燃料组件和核反应堆。
公开(公告)号：EP0447108B1
公开(公告)日：1994-07-27
申请号：EP91301841.2
申请日：1991-03-06
申请人： HITACHI, LTD.
发明人： Ishii, Kazuya , Aoyama, Motoo , Ishii, Yoshihiko , Uchikawa, Sadao , Takeda, Renzo , Yokomizo, Osamu
IPC分类号： G21C3/326
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2002/207 , G21Y2004/10 , G21Y2004/30 , Y02E30/38

9. 发明公开

EP0284016A3 Fuel assembly 失效
标题翻译：燃料组件
公开(公告)号：EP0284016A3
公开(公告)日：1988-12-07
申请号：EP88104556
申请日：1988-03-22
申请人： HITACHI, LTD.
发明人： Aoyama, Motoo , Bessho, Yasunori , Uchikawa, Sadao , Takeda, Renzo , Ishii, Yoshihiko
IPC分类号： G21C03/00
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly of the present invention comprises a plurality of fuel rods (15) which are held by an upper tie plate and lower tie plate at the ends thereof and a moderating rod (17) which is arranged between the fuel rods (15) and held by the lower tie plate at its lower end. The fuel rods are arranged in a lattice form having 9 rows and 9 columns, and the moderating rod (17) contains a passage for a coolant and has a cruciate cross-sectional form. The ratio A M /A C of the area A M of a moderator region in the moderating rod in the cross-sectional plane in which the moderator is present to the area A C of the coolant passages in said fuel assembly (10) is within the range of 0.07 to 0.11, and the area A M is 75 % or more of the total area of the fuel lattice units in which none of the fuel rods (15) is arranged, but the moderating rod (17) is arranged.
摘要翻译：本发明的燃料组件包括多个燃料棒（15），所述燃料棒由其上端部处的上部连接板和下部连接板保持;以及调节杆（17），所述调节杆布置在所述燃料棒（15）和在下端由下部系板固定。燃料棒排列成9排9列的格子形状，缓和棒17包含冷却剂通道并具有十字形横截面形式。减速器存在的横截面中减速杆中慢化剂区域的区域AM的AM / AC与所述燃料组件（10）中的冷却剂通道的区域AC的比率AM / AC在0.07 为0.11，并且面积AM为其中没有设置燃料棒（15）的燃料晶格单元的总面积的75％或更多，但是布置有调节杆（17）。

10. 发明公开

EP0284016A2 Fuel assembly 失效
标题翻译： Brennstoffanordnung。
公开(公告)号：EP0284016A2
公开(公告)日：1988-09-28
申请号：EP88104556.1
申请日：1988-03-22
申请人： HITACHI, LTD.
发明人： Aoyama, Motoo , Bessho, Yasunori , Uchikawa, Sadao , Takeda, Renzo , Ishii, Yoshihiko
IPC分类号： G21C3/00
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly of the present invention comprises a plurality of fuel rods (15) which are held by an upper tie plate and lower tie plate at the ends thereof and a moderating rod (17) which is arranged between the fuel rods (15) and held by the lower tie plate at its lower end. The fuel rods are arranged in a lattice form having 9 rows and 9 columns, and the moderating rod (17) contains a passage for a coolant and has a cruciate cross-sectional form. The ratio A M /A C of the area A M of a moderator region in the moderating rod in the cross-sectional plane in which the moderator is present to the area A C of the coolant passages in said fuel assembly (10) is within the range of 0.07 to 0.11, and the area A M is 75 % or more of the total area of the fuel lattice units in which none of the fuel rods (15) is arranged, but the moderating rod (17) is arranged.
摘要翻译：本发明的燃料组件包括多个燃料棒（15），它们由上连接板和下连接板保持在其端部，调节杆（17）设置在燃料棒（15）和在其下端由下连接板固定。燃料棒布置成具有9排和9列的格子形式，调节杆（17）包含用于冷却剂的通道，并且具有十字形横截面形状。在减速剂中的调节杆区域中的调节剂区域中的调节剂区域的AM / AC与存在于所述燃料组件（10）中的冷却剂通道的区域AC的比例在0.07以下的范围内至0.11，并且区域AM为没有设置燃料棒（15）的燃料格子单元的总面积的75％以上，但配置有调节杆（17）。

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