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公开(公告)号:US07245689B2
公开(公告)日:2007-07-17
申请号:US10867686
申请日:2004-06-16
IPC分类号: G21C1/04
CPC分类号: G21C5/10 , G21Y2002/201 , G21Y2004/302 , Y02E30/40
摘要: In a nuclear reactor internal structure, generation and promotion of object-downstream separating vortices are suppressed so that coolant uniformly flows in a reactor core and pressure loss of flow of the coolant is reduced so that the flow of the coolant is stabilized. A lower connecting plate 30 arranged in a lower plenum 8 comprises a ring portion 31 in which an arcuate portion 32 and a cut-off portion are alternately formed. An outer peripheral portion of the ring portion 31 is asymmetric relative to a flow direction of main flow and also asymmetric relative to a separating flow generation direction.
摘要翻译: 在核反应堆内部结构中,抑制物体 - 下游分离涡流的产生和促进,使得冷却剂在反应堆堆芯中均匀流动,并且降低冷却剂的流量压力损失,使得冷却剂的流动稳定。 布置在下部增压室8中的下部连接板30包括环形部分31,其中弧形部分32和截止部分交替地形成。 环部31的外周部相对于主流的流动方向是不对称的,并且相对于分离流产生方向也是不对称的。
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公开(公告)号:US20070133732A1
公开(公告)日:2007-06-14
申请号:US10867686
申请日:2004-06-16
IPC分类号: G21C1/04
CPC分类号: G21C5/10 , G21Y2002/201 , G21Y2004/302 , Y02E30/40
摘要: In a nuclear reactor internal structure, generation and promotion of object-downstream separating vortices are suppressed so that coolant uniformly flows in a reactor core and pressure loss of flow of the coolant is reduced so that the flow of the coolant is stabilized. A lower connecting plate 30 arranged in a lower plenum 8 comprises a ring portion 31 in which an arcuate portion 32 and a cut-off portion are alternately formed. An outer peripheral portion of the ring portion 31 is asymmetric relative to a flow direction of main flow and also asymmetric relative to a separating flow generation direction.
摘要翻译: 在核反应堆内部结构中,抑制物体 - 下游分离涡流的产生和促进,使得冷却剂在反应堆堆芯中均匀流动,并且降低冷却剂的流量压力损失,使得冷却剂的流动稳定。 布置在下部增压室8中的下部连接板30包括环形部分31,其中弧形部分32和截止部分交替地形成。 环部31的外周部相对于主流的流动方向是不对称的,并且相对于分离流产生方向也是不对称的。
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公开(公告)号:US20100226791A1
公开(公告)日:2010-09-09
申请号:US12670912
申请日:2007-08-30
申请人: Daigo Fujimura , Hideaki Sugishita , Masaaki Matsuura , Hiroyuki Yamamoto , Shunsuke Torii , Satoshi Hada , Kiyoshi Suenaga , Yuko Suenaga
发明人: Daigo Fujimura , Hideaki Sugishita , Masaaki Matsuura , Hiroyuki Yamamoto , Shunsuke Torii , Satoshi Hada , Kiyoshi Suenaga , Yuko Suenaga
IPC分类号: F01D5/18
CPC分类号: F01D5/187 , F05D2240/127 , F05D2250/185 , F05D2260/2212 , F05D2260/22141 , Y02T50/676
摘要: A blade cooling structure of a gas turbine, which can reduce the pressure loss of a cooling medium without decreasing the heat transfer coefficient, is provided. The blade cooling structure comprises a cooling passage (15) for flowing cooling air (A) from a proximal end portion (12) toward a blade portion (14) of a moving blade (11), a plurality of turbulators (21) arranged, on both wall surfaces of the cooling passage (15) opposing each other, in such a manner as to be inclined with respect to the flowing direction of the cooling air (A), and a plurality of dimples (22) formed in a downstream region (N) downstream of a center position (O) in the flowing direction of the cooling air (A) on the wall surface of the cooling passage (15) between the adjacent turbulators (21).
摘要翻译: 提供了一种燃气轮机的叶片冷却结构,其可以在不降低传热系数的情况下降低冷却介质的压力损失。 叶片冷却结构包括用于使冷却空气(A)从基端部(12)朝向活动叶片(11)的叶片部分(14)流动的冷却通道(15),多个湍流器(21) 在相对于冷却空气(A)的流动方向倾斜的方式相互相对的冷却通路(15)的两壁面上形成有多个凹部(22),形成在下游区域 (N)在冷却空气(A)的流动方向上在相邻的湍流器(21)之间的冷却通道(15)的壁表面上的中心位置(O)的下游。
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公开(公告)号:US08556583B2
公开(公告)日:2013-10-15
申请号:US12670912
申请日:2007-08-30
申请人: Daigo Fujimura , Hideaki Sugishita , Masaaki Matsuura , Hiroyuki Yamamoto , Shunsuke Torii , Satoshi Hada , Kiyoshi Suenaga , Yuko Suenaga
发明人: Daigo Fujimura , Hideaki Sugishita , Masaaki Matsuura , Hiroyuki Yamamoto , Shunsuke Torii , Satoshi Hada , Kiyoshi Suenaga , Yuko Suenaga
IPC分类号: B64C11/24
CPC分类号: F01D5/187 , F05D2240/127 , F05D2250/185 , F05D2260/2212 , F05D2260/22141 , Y02T50/676
摘要: A blade cooling structure of a gas turbine, which can reduce the pressure loss of a cooling medium without decreasing the heat transfer coefficient, is provided. The blade cooling structure comprises a cooling passage (15) for flowing cooling air (A) from a proximal end portion (12) toward a blade portion (14) of a moving blade (11), a plurality of turbulators (21) arranged, on both wall surfaces of the cooling passage (15) opposing each other, in such a manner as to be inclined with respect to the flowing direction of the cooling air (A), and a plurality of dimples (22) formed in a downstream region (N) downstream of a center position (O) in the flowing direction of the cooling air (A) on the wall surface of the cooling passage (15) between the adjacent turbulators (21).
摘要翻译: 提供了一种燃气轮机的叶片冷却结构,其可以在不降低传热系数的情况下降低冷却介质的压力损失。 叶片冷却结构包括用于使冷却空气(A)从基端部(12)朝向活动叶片(11)的叶片部分(14)流动的冷却通道(15),多个湍流器(21) 在相对于冷却空气(A)的流动方向倾斜的方式相互相对的冷却通路(15)的两壁面上形成有多个凹部(22),形成在下游区域 (N)在冷却空气(A)的流动方向上在相邻的湍流器(21)之间的冷却通道(15)的壁表面上的中心位置(O)的下游。
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