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1. 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）。

2. 发明公开

EP0240894A3 BWR critical-power-enhancing water rod 失效
标题翻译： BWR关键功率增强水杆
公开(公告)号：EP0240894A3
公开(公告)日：1988-01-13
申请号：EP87104688
申请日：1987-03-30
申请人： Siemens Aktiengesellschaft
发明人： Patterson, John F. , MacDuff, Robert B. , Yates, Jack
IPC分类号： G21C03/00
CPC分类号： G21C3/328 , G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/31 , Y02E30/38
摘要： A full assembly for a boiling water reactor in which water rods (18) for providing moderating effects and enhanced cooling effects comprise an outer tube having inlet openings (22) disposed near its lower extremity, intermediate exit openings (24) somewhat above the midpoint of the rods (18) and an inner tube (28) open at its top and bottom, disposed within the upper portion of rod (18) in a critical heat transfer zone (32) and having water outlet openings near the midpoint of heat transfer zone (32).

3. 发明公开

EP0230613A3 Nuclear fuel assembly 失效
标题翻译：核燃料装配
公开(公告)号：EP0230613A3
公开(公告)日：1988-01-13
申请号：EP86117608
申请日：1986-12-17
申请人： HITACHI, LTD.
发明人： Aoyama, Motoo , Bessho, Yasunori , Morimoto, Yuichi , Maruyama, Hiromi , Uchikawa, Sadao
IPC分类号： G21C03/00
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly comprises a plurality of fuel rods (2), moderator rods (6) disposed among the fuel rods (2), upper and lower tie plates (3, 4) for holding both end portions of the fuel rods (2) and the moderator rods (6), and fuel spacers (5) for keeping distances between the fuel rods (2) and the moderator rods (6) constant. The fuel assembly is characterized in that there is provided a space region (8, l5) extending from the upper tie plate (3) to the lower to plate (4) and having a space enough to dispose at least one of the fuel rods (2), at least one of the moderator rods (6) being disposed adjacent to the space region (8, l5), and the fuel rods (2), the moderator rod (6) and the space region (8, l5) are disposed in a grid form.

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