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1. 发明公开

EP0709857A1 Nuclea fuel assembly channel comprising spacer centering mass 失效
标题翻译： Kernbrennstoffkasten mit Abstandshalter Zentrierungsmittel
公开(公告)号：EP0709857A1
公开(公告)日：1996-05-01
申请号：EP95307320.2
申请日：1995-10-16
申请人： GENERAL ELECTRIC COMPANY
发明人： Matzner, Bruce (NMN)
IPC分类号： G21C3/332 , G21C3/322
CPC分类号： G21C3/332 , G21C3/322 , G21C3/324 , G21Y2002/201 , G21Y2002/204 , G21Y2004/301 , G21Y2004/302 , Y02E30/31 , Y02E30/38
摘要： In a fuel assembly comprising a plurality of fuel rods positioned in a spaced array between upper and lower tie-plates; a plurality of axially spaced spacers (S1,S2,S3,S4) for maintaining the plurality of fuel rods in the spaced array; an open ended flow channel (30) surrounding the array for conducting coolant upward about the fuel rods, the open ended channel (30) having a polygon shaped cross section with substantially flat side sections connected between the corner sections; an improvement which includes a plurality of interior projections (36) at each of a plurality of axially spaced locations in an upper portion only of the channel (30), the locations corresponding to placement of the spacers (S1-S3) within the upper two phase portion of the channel.
摘要翻译：在燃料组件中，包括多个燃料棒，所述多个燃料棒以上下连接板间隔开排列; 多个轴向隔开的间隔件（S1，S2，S3，S4），用于将多个燃料棒保持在间隔开的阵列中; 围绕所述阵列的开放式流动通道（30），用于沿着所述燃料棒向上引导冷却剂，所述开放式通道（30）具有多边形形状的横截面，所述多边形截面具有连接在角部之间的基本上平坦的侧部; 改进包括仅在通道（30）的上部中的多个轴向间隔开的位置中的每一个处的多个内部突出部（36），对应于间隔件（S1-S3）在上部两者中的放置的位置通道的相位部分。

2. 发明授权

EP0336203B1 Two-phase pressure drop reduction BWR assembly design 有权
标题翻译： Siedewasserreaktorkonstruktion具有两阶段还原的压降。
公开(公告)号：EP0336203B1
公开(公告)日：1994-07-06
申请号：EP89105017.1
申请日：1989-03-21
申请人： GENERAL ELECTRIC COMPANY
发明人： Dix, Gary Errol , Matzner, Bruce (NMN) , Crowther, Russell Lee , Elkins, Robert Bruce , Colby, Mark Joseph
IPC分类号： G21C3/32
CPC分类号： G21C3/322 , G21C3/328 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/31 , Y02E30/38

3. 发明授权

EP0283839B1 Axially shaped channel and integral flow trippers 有权
标题翻译：圆形通道和整体流动拖拉机
公开(公告)号：EP0283839B1
公开(公告)日：1993-06-09
申请号：EP88103587.7
申请日：1988-03-08
申请人： GENERAL ELECTRIC COMPANY
发明人： Crowther, Russel Lee , Johansson, Eric Bertil , Matzner, Bruce (NMN)
IPC分类号： G21C5/06 , G21C15/26
CPC分类号： G21C3/322 , G21C3/324 , G21Y2002/201 , G21Y2004/30 , G21Y2004/305 , Y02E30/38

4. 发明公开

EP0482384A1 Composite spacer with Inconel grid and zircaloy band 失效
标题翻译： Zusammengesetzter Abconshieldter Inconel-Gitter und Zircaloy-Aussenband。
公开(公告)号：EP0482384A1
公开(公告)日：1992-04-29
申请号：EP91116621.3
申请日：1991-09-30
申请人： GENERAL ELECTRIC COMPANY
发明人： Johansson, Eric Bertil , Matzner, Bruce (NMN) , Latter, Gerald Martin
IPC分类号： G21C3/344
CPC分类号： G21C3/348 , G21C3/3424 , G21C3/344 , G21Y2002/201 , G21Y2002/302 , G21Y2002/303 , G21Y2002/304 , G21Y2004/30 , Y02E30/40
摘要： A spacer is disclosed which contains an Inconel grid and a Zircaloy surrounding band. The Inconel grid can be fabricated from the extremely thin and highly elastic spring metal. The grid comprising cells with paired inwardly bent vertical spring legs (24), (26) with cantilevered and rod encircling upper and lower arm pairs (28), (30). The spring legs (24), (26) extend at spaced apart locations between the upper and lower arm pairs (28), (30) and have a medial spring rod contacting portion (25), (27) for biasing the rods into stops (45), (46), (47), (48) on the rod encircling arm pairs (28), (30). The springs at the upper and lower ends are provided with spring dimple stops (34), (35), (36), (37) to prevent over stressing of the spring during assembly or handling. The rod encircling arm pairs (28), (30) have different length to provide upon assembling of the short and the long leg of adjacent cell arms an overlaping configuration. The gaps between the arm ends (50), (51) are offset. Spot welding of the two pairs of arms forms a structurally rigit unit. An all Zircaloy band is disclosed for surrounding the Inconel grid cells. Apertures in the band at the corners, allow to key the grid to the band of the Inconel.
摘要翻译：公开了一种包含Inconel网格和Zircaloy周边带的间隔物。铬镍铁合金网格可以由非常薄且高弹性的弹簧金属制成。包括具有成对的向内弯曲的垂直弹簧腿（24），（26），具有悬臂和杆环绕的上臂和下臂对（28），（30）的细胞的格栅。弹簧腿（24），（26）在上下臂对（28），（30）之间的间隔开的位置处延伸，并且具有用于将杆偏压到止动件中的内侧弹簧杆接触部分（25），（27）（28），（30）上的（45），（46），（47），（48）。上端和下端的弹簧设置有弹簧凹坑止动件（34），（35），（36），（37），以防止弹簧在组装或搬运过程中过度应力。杆周围臂对（28），（30）具有不同的长度，以在组装相邻电池臂的短腿和长腿时提供重叠构造。臂端（50），（51）之间的间隙偏移。两对臂的点焊形成结构上的钻井单元。披露了围绕Inconel网格单元的所有Zircaloy带。在角落的带中的孔径允许将网格键入Inconel的带。

5. 发明公开

EP0465925A1 Flow diverter with flow tabs for large water rod 失效
标题翻译： FlüssigkeitsverteilermitStrömungsleitblechenfürein Wasserrohr grossen Durchmessers。
公开(公告)号：EP0465925A1
公开(公告)日：1992-01-15
申请号：EP91110505.4
申请日：1991-06-25
申请人： GENERAL ELECTRIC COMPANY
发明人： Johansson, Eric Bertil , Matzner, Bruce (NMN)
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/38
摘要： In a nuclear reactor fuel bundle for a boiling nuclear reactor having a large water rod, provision is made in the two-phase region of the fuel bundle for flow tabs on the large water rod for diverting liquid water moderator flowing along the water rod to adjacent fuel rods for the more efficient generation of steam and power.
摘要翻译：在用于具有大水杆的沸腾核反应堆的核反应堆燃料束中，在大水杆上的用于流动翼片的燃料束的两相区域中设置用于将沿着水杆流动的液体水慢化剂转向相邻燃料棒用于更有效地产生蒸汽和动力。

6. 发明授权

EP0669624B1 Debris catcher for a nuclear reactor 失效
标题翻译：核反应堆碎片滤
公开(公告)号：EP0669624B1
公开(公告)日：1998-05-13
申请号：EP95300101.3
申请日：1995-01-09
申请人： GENERAL ELECTRIC COMPANY
发明人： Johansson, Eric Bertil , Elkins, Robert Bruce , Matzner, Bruce (NMN) , Latter, Gerald Martin , Proebstle, Richard Alan
IPC分类号： G21C3/32
CPC分类号： G21C3/3206 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , Y02E30/40

7. 发明授权

EP0514116B1 Spacer associated pressure drop in a boiling water reactor bundle having part length rods 有权
标题翻译：产生在一个Siedewasserreaktorbrennstabbündel的压降与间隔件部分长度的杆
公开(公告)号：EP0514116B1
公开(公告)日：1996-03-06
申请号：EP92304242.8
申请日：1992-05-12
申请人： GENERAL ELECTRIC COMPANY
发明人： Matzner, Bruce (NMN) , Wolters, Richard Arthur, Jr. , Reese, Anthony Paul , Johansson, Eric Bertil
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21Y2002/201 , G21Y2004/302 , Y02E30/31 , Y02E30/38

8. 发明授权

EP0482384B1 Composite spacer with Inconel grid and zircaloy band 失效
标题翻译：复合垫片与铬镍铁合金电网和锆合金外带。
公开(公告)号：EP0482384B1
公开(公告)日：1995-12-06
申请号：EP91116621.3
申请日：1991-09-30
申请人： GENERAL ELECTRIC COMPANY
发明人： Johansson, Eric Bertil , Matzner, Bruce (NMN) , Latter, Gerald Martin
IPC分类号： G21C3/344
CPC分类号： G21C3/348 , G21C3/3424 , G21C3/344 , G21Y2002/201 , G21Y2002/302 , G21Y2002/303 , G21Y2002/304 , G21Y2004/30 , Y02E30/40

9. 发明公开

EP0490162A1 A method and a detector for measuring subchannel voids in a light water reactor test fuel assembly 失效
标题翻译：在einem Leichtwasserkernreaktor-Testbrennstabbündel的Verfahren zur Messung des Unterkanalleeranteils。
公开(公告)号：EP0490162A1
公开(公告)日：1992-06-17
申请号：EP91120136.6
申请日：1991-11-26
申请人： GENERAL ELECTRIC COMPANY
发明人： Shiraishi, Leroy Masao , Wilhelmson, Donald Allen , Matzner, Bruce (NMN)
IPC分类号： G21C17/038
CPC分类号： G21C17/001 , G21C17/038
摘要： In a light water nuclear reactor test assembly for emulating the performance of a nuclear boiling water reactor fuel bundle, a system of the measurement of subchannel void fraction in the two-phase region of the emulated fuel bundle is disclosed. The emulated fuel bundle has individual emulated nuclear fuel rods typically heated by individual electrical currents instead of nuclear reaction. The interior of the emulated fuel rods are thus cylindrically hollow. A gamma-emitting source, such as americium 241, is placed on a probe and mounted for vertical excursion interior to a selected emulated hollow fuel rods. A detector, typically a Geiger-Müller counter, is placed for corresponding vertical excursion interior to another and preferably adjacent fuel rod. Gamma radiation from the source to the detector through the walls of the emulated fuel rods is measured. Attenuation of the gamma rays between source and detector is used to measure the void fraction within the two-phase region of the emulated fuel bundle. Preferably, both detector and source are collimated so that the detector does not receive gamma ray scattering from the interior of the test assembly. Preferably the detector is both collimated as to the gamma rays emitted by the source and cooled by an overlying heavy metal shield, such as gold, this shield conducting heat from the vicinity of the detector to a water-cooled line passing through the metal shield. By the expedient of utilizing a relatively low energy neutron source -- such as americium 241 with its 60 KeV gamma ray emission -- gamma signal at the detector can be directly attributed to gamma absorption of the liquid moderator fraction present between the emulated fuel rod containing the detector and the emulated fuel rod containing the source. Utilizing the disclosed test assembly an accurate measurement of the presence of moderator within a fuel bundle can be determined.
摘要翻译：在用于模拟核沸水反应堆燃料束的性能的轻水核反应堆试验组件中，公开了在模拟燃料束的两相区域中测量子通道空隙率的系统。模拟燃料束具有通常由单个电流加热而不是核反应的单独的模拟核燃料棒。模拟燃料棒的内部因此是圆柱形空心的。诸如ium 241的伽马发射源被放置在探头上并且安装成用于垂直偏移内部到选定的模拟空心燃料棒。放置一个检测器，通常是Geiger-Müller计数器，用于相应的垂直偏移内部到另一个并且优选相邻的燃料棒。测量通过模拟燃料棒的壁从源到检测器的伽马辐射。源和检测器之间的伽马射线的衰减被用于测量模拟燃料束的两相区域内的空隙率。优选地，检测器和源都被准直，使得检测器不会从测试组件的内部接收伽马射线散射。优选地，检测器对于由源发射的伽马射线是准直的，并且被覆盖的重金属屏蔽（例如金）冷却，该屏蔽件将热量从检测器附近传导到通过金属屏蔽的水冷线。通过利用相对较低能量的中子源（例如氦241，其在检测器处具有60KeVγ射线发射γ信号）的优点可以直接归因于存在于模拟燃料棒之间的液体调节剂级分的γ吸收检测器和包含源的模拟燃料棒。利用所公开的测试组件，可以确定燃料束内的调节剂的存在的精确测量。

10. 发明公开

EP0283839A2 Axially shaped channel and integral flow trippers 有权
标题翻译： Länglichzulaufender Durchflusskanal mit integriertenStrömungsleitausnehmungen。
公开(公告)号：EP0283839A2
公开(公告)日：1988-09-28
申请号：EP88103587.7
申请日：1988-03-08
申请人： GENERAL ELECTRIC COMPANY
发明人： Crowther, Russel Lee , Johansson, Eric Bertil , Matzner, Bruce (NMN)
IPC分类号： G21C5/06 , G21C15/26
CPC分类号： G21C3/322 , G21C3/324 , G21Y2002/201 , G21Y2004/30 , G21Y2004/305 , Y02E30/38
摘要： An improved channel is disclosed which has a reduced average thickness in its upper portion. The lesser average thickness corresponds to a lower pressure difference acting on the channel sides, over the upper portion of the channel. The reduction in average thickness is accomplished by cutting flow trippers into the inner surface of the channel walls and/or cutting grooves into the outer surface of the channel. The axial variation of channel average thickness increases water volume adjacent to the upper part of the channel to provide increased neutron moderation, to minimize the steam void reactivity coefficient, and to provide a greater cold shutdown margin. The material removed to produce the flow trippers increases the cross-sectional area inside the channel and reduces pressure drop in the upper portion of the channel. The flow trippers divert water flowing on the channel walls to the fuel rods adjacent to the channel walls, permitting higher reactor power operation. The flow trippers also permit operation at lower flow rates.
摘要翻译：公开了一种改进的通道，其上部具有减小的平均厚度。较小的平均厚度对应于在通道的上部上作用在通道侧上的较低的压力差。平均厚度的减小是通过将流动跳闸切入通道壁的内表面和/或切割沟槽进入通道的外表面来实现的。通道平均厚度的轴向变化增加了与通道上部相邻的水体积，以提供增加的中子调节，以最小化蒸汽空隙反应性系数，并提供更大的冷关闭余量。去除以产生流动脱扣器的材料增加了通道内的横截面积，并减小了通道上部的压降。流动跳闸器将在通道壁上流动的水转移到与通道壁相邻的燃料棒，允许较高的反应堆功率运行。流量跳闸器还允许以较低流量运行。

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