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1.发明授权Side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies 有权双壁，喷嘴状，用于核燃料组件seitengeschlitzte间隔
公开(公告)号：EP1416500B1
公开(公告)日：2012-10-24
申请号：EP03253364.8
申请日：2003-05-29
发明人： Kang, Heung Seok , Yoon, Kyung Ho , Kim, Hyung Kyu , Chun, Tae Hyun , Oh, Dong Seok , Jung, Yeon Ho , In, Wang Kee , Song, Kee Nam
CPC分类号： G21C3/3566 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
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2.发明公开Side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies 有权Doppelwandige，düsenartige，seitengeschlitzte AbstandshalterfürKernbrennstabbündel
公开(公告)号：EP1416500A2
公开(公告)日：2004-05-06
申请号：EP03253364.8
申请日：2003-05-29
发明人： Kang, Heung Seok, 314-1504 Samsung Green Apt. , Yoon, Kyung Ho , Kim, Hyung Kyu , Chun, Tae Hyun , Oh, Dong Seok , Jung, Youn Ho , In, Wang Kee , Song, Kee Nam
CPC分类号： G21C3/3566 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies. The spacer grid includes intersecting inner strips and four perimeter strips. Each inner strip has unit strip parts, each fabricated by integrating two unit sheet parts together into a single structure, such that the two unit sheet parts face each other and a nozzle type coolant channel is defined between the two unit sheet parts. Each perimeter strip is fabricated by integrating an inner thin sheet having the unit sheet parts with a flat outer thin sheet having a width corresponding to the width of the inner thin sheet into a single structure. The coolant channel has one or more outlets formed by cutting an upper portion of one of the two unit sheet parts of each unit strip part. Each unit sheet part has a slot longitudinally formed on each side surface of a spring that is projected from the unit sheet part to support a fuel rod within a four-walled cell. The spacer grid thus effectively deflects and mixes coolants together to improve the heat transfer effect between fuel rods and coolants, and enhances its strength to effectively resist laterally directed forces acting thereon, and remarkably improves spring performance of its fuel rod support parts, thus accomplishing desired soundness of the fuel assemblies.
摘要翻译： 用于核燃料组件的间隔栅格包括以预定角度彼此交叉的内部条，以形成用于接收和支撑间隔栅格中的燃料棒的四壁电池。 每个内条包括单元条部分，其形成为将两个单元片部分集成在一起成为单个结构，使得单位片部分彼此面对，并且在单元片部分之间限定具有入口和出口的喷嘴型冷却剂通道。 用于核燃料组件的侧开口喷嘴型双板间隔栅格（310）包括以预定角度彼此相交的内条（316），以形成四壁电池以接收和支撑间隔栅格中的燃料棒（325）。 每个内条包括单元条部件，每个单元条部件都将两个单元的羊部分组合在一起形成单个结构，使得两个单元片部件彼此面对，并且具有入口和出口的喷嘴型冷却剂通道限定在两个单元片部件之间 。 每个单元片部分设置有纵向地形成在弹簧的每个侧表面上的槽，该弹簧从单元片部分突出以将燃料棒支撑在四壁电池内。
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3.发明公开Side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies 有权双壁，喷嘴状，用于核燃料组件seitengeschlitzte间隔
公开(公告)号：EP1416500A3
公开(公告)日：2008-04-16
申请号：EP03253364.8
申请日：2003-05-29
发明人： Kang, Heung Seok, 314-1504 Samsung Green Apt. , Yoon, Kyung Ho , Kim, Hyung Kyu , Chun, Tae Hyun , Oh, Dong Seok , Jung, Youn Ho , In, Wang Kee , Song, Kee Nam
CPC分类号： G21C3/3566 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies. The spacer grid includes intersecting inner strips and four perimeter strips. Each inner strip has unit strip parts, each fabricated by integrating two unit sheet parts together into a single structure, such that the two unit sheet parts face each other and a nozzle type coolant channel is defined between the two unit sheet parts. Each perimeter strip is fabricated by integrating an inner thin sheet having the unit sheet parts with a flat outer thin sheet having a width corresponding to the width of the inner thin sheet into a single structure. The coolant channel has one or more outlets formed by cutting an upper portion of one of the two unit sheet parts of each unit strip part. Each unit sheet part has a slot longitudinally formed on each side surface of a spring that is projected from the unit sheet part to support a fuel rod within a four-walled cell. The spacer grid thus effectively deflects and mixes coolants together to improve the heat transfer effect between fuel rods and coolants, and enhances its strength to effectively resist laterally directed forces acting thereon, and remarkably improves spring performance of its fuel rod support parts, thus accomplishing desired soundness of the fuel assemblies.
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