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1. 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

2. 发明公开

EP0257337A1 Fuel assembly and nuclear reactor 失效
标题翻译： Brennstoffanordnung und Kernreaktor。
公开(公告)号：EP0257337A1
公开(公告)日：1988-03-02
申请号：EP87111042.5
申请日：1987-07-30
申请人： HITACHI, LTD.
发明人： Morimoto, Yuichi , Maruyama, Hiromi , Aoyama, Motoo , Zukeran, Atsushi , Bessho, Yasunori , Matsumoto, Tomoyuki , Ishii, Yoshihiko , Fujimura, Kouji , Uchikawa, Sadao
IPC分类号： G21C3/00
CPC分类号： G21C3/328 , G21Y2002/20 , G21Y2004/10 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly (A1; A2; A3) is composed of first fuel rods (15B) containing nuclear fuel material and burnable poison material and second fuel rods (15A) containing nuclear fuel material but no burnable poison material. The fuel assembly (A1; A2; A3) is charged in a high conversion area (59) of a boiling water type nuclear reactor (50) having a reactor core (58) having the high conversion area (59) and a burner area (60) surrounding the high conversion area (59). A ratio V C /V F is not greater than 1.5 in the fuel assembly (A1; A2; A3) where V c is the volume occupied by coolant flow paths and V F is the volume occupied by the nuclear fuel material per unit length in an axial direction of the fuel assembly (A1; A2; A3). In addition, the burnable poison material is composed of neutron absorption nuclides having at least one resonant energy in a neutron energy region of one electron volt or less.
摘要翻译：燃料组件（A1; A2; A3）由包含核燃料材料和可燃毒物的第一燃料棒（15B）和包含核燃料材料但不含可燃毒物的第二燃料棒（15A）组成。将燃料组件（A1; A2; A3）装入具有高转换区域（59）的反应堆堆芯（58）和燃烧器区域（59）的沸水型核反应堆（50）的高转化区域（59）围绕高转换区域（59）。燃料组件（A1; A2; A3）中的VC / VF的比率不大于1.5，其中VC是冷却剂流动路径占据的体积，VF是每单位长度在轴向上的核燃料材料占据的体积燃料组件（A1; A2; A3）。此外，可燃毒物由中子吸收核素组成，中子吸收核素在一个电子伏特以下的中子能区域具有至少一个共振能。

3. 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。

4. 发明授权

EP0257337B1 Fuel assembly and nuclear reactor 失效
标题翻译：燃油组件和核反应堆
公开(公告)号：EP0257337B1
公开(公告)日：1991-01-30
申请号：EP87111042.5
申请日：1987-07-30
申请人： HITACHI, LTD.
发明人： Morimoto, Yuichi , Maruyama, Hiromi , Aoyama, Motoo , Zukeran, Atsushi , Bessho, Yasunori , Matsumoto, Tomoyuki , Ishii, Yoshihiko , Fujimura, Kouji , Uchikawa, Sadao
IPC分类号： G21C3/00
CPC分类号： G21C3/328 , G21Y2002/20 , G21Y2004/10 , G21Y2004/30 , Y02E30/38

5. 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

6. 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）。

7. 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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