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1. 发明授权

US6088419A Corrosion and hydride resistant nuclear fuel rod 失效
标题翻译：耐腐蚀和耐氢化核燃料棒
公开(公告)号：US6088419A
公开(公告)日：2000-07-11
申请号：US182883
申请日：1998-10-30
申请人： Leonard F. P. Van Swam
发明人： Leonard F. P. Van Swam
IPC分类号： G21C3/06 , B32B15/01 , B32B15/02 , C22C16/00 , G21C3/07 , G21C3/20
CPC分类号： C22C16/00 , B32B15/01 , B32B15/02 , G21C3/07 , G21Y2002/103 , G21Y2002/104 , G21Y2002/303 , G21Y2004/10 , G21Y2004/30 , Y02E30/40
摘要： A corrosion and hydride resistant nuclear fuel rod having a highly corrosion resistant outer portion in which hydride precipitation is inhibited and an inner portion in which hydride precipitation is promoted.
摘要翻译：具有耐腐蚀性高的外部部分的耐腐蚀和耐氢化的核燃料棒，其中氢化物沉淀被抑制，并且其中促进氢化物沉淀的内部。

2. 发明授权

US6010671A Process for selective recovery of uranium from sludge 失效
标题翻译：从污泥中选择性回收铀的工艺
公开(公告)号：US6010671A
公开(公告)日：2000-01-04
申请号：US84025
申请日：1998-05-22
申请人： Richard T. Kimura
发明人： Richard T. Kimura
IPC分类号： C01G43/00 , C22B60/02 , C01G56/00 , C22B60/00
CPC分类号： C22B60/0278 , C01G43/00 , C22B60/0247
摘要： A process for recovering uranium from a waste sludge involves treating the sludge with a non-reactive, non-absorptive cellulose filtration media, adding an oxidant and heating the mixture to dissolve any uranium present. The mixture is passed through a filtration device precoated with the same filtration media, where the solids are captured while the dissolved uranium passes through as part of the filtrate, for recovery.
摘要翻译：从废污泥回收铀的方法包括用非反应性，非吸收性纤维素过滤介质处理污泥，加入氧化剂并加热混合物以溶解存在的任何铀。将混合物通过预先涂覆有相同过滤介质的过滤装置，其中捕获固体，同时溶解的铀作为滤液的一部分通过，用于回收。

3. 发明授权

US5991354A Nuclear fuel pellet 失效
标题翻译：核燃料颗粒
公开(公告)号：US5991354A
公开(公告)日：1999-11-23
申请号：US988200
申请日：1997-11-26
申请人： Leonard F. P. Van Swam
发明人： Leonard F. P. Van Swam
IPC分类号： G21C3/58 , G21C3/62 , G21C3/16 , G21C3/32
CPC分类号： G21C3/623 , G21C3/58 , Y02E30/38
摘要： A nuclear fuel pellet having concentric layers of nuclear fuel in which an outer layer has less fissionable nuclear fuel per unit volume and substantially the same amount of fertile material per unit volume as an inner core.
摘要翻译：具有核燃料同心层的核燃料颗粒，其中外层每单位体积具有较少的可裂变核燃料，并且每单位体积的内核具有基本相同数量的可育材料。

4. 发明授权

US5854818A Zirconium tin iron alloys for nuclear fuel rods and structural parts for high burnup 失效
标题翻译：用于核燃料棒的锆锡铁合金和高燃耗的结构部件
公开(公告)号：US5854818A
公开(公告)日：1998-12-29
申请号：US919452
申请日：1997-08-28
申请人： Leonard F. P. Van Swam , Friedrich Garzarolli , Heinrich Ruhmann
发明人： Leonard F. P. Van Swam , Friedrich Garzarolli , Heinrich Ruhmann
IPC分类号： G21C3/07 , C22C16/00 , C22F1/00 , C22F1/18 , G21C3/06 , G21C3/30 , G21C3/34 , G21C5/00
CPC分类号： G21C3/06 , C22C16/00 , Y02E30/40
摘要： Zirconium alloys for use in an aqueous environment subject to high fluence of a water reactor and characterized by improved corrosion resistance, consisting essentially of 0.3 to 1.8 weight percent tin, 0.1 to 0.65 weight percent iron, the balance of alloys being essentially nuclear grade zirconium with incidental impurities and having a microstructure of Zr.sub.3 Fe second phase precipitates distributed uniformly intragranularly and intergranularly to form radiation resistant second phase precipitates in the alloy matrix.
摘要翻译：用于水反应器高流量的水性环境中的锆合金，其特征在于耐腐蚀性得到改善，其基本上由0.3至1.8重量％的锡，0.1至0.65重量百分比的铁组成，其余的合金基本上是核级锆，附带杂质，并具有Zr3Fe第二相析出物的微观组织，均匀地分布在颗粒间和晶间，在合金基质中形成耐辐射的第二相析出物。

5. 发明授权

US5661766A Nuclear fuel assembly bow and twist measurement apparatus 失效
标题翻译：核燃料组件弓和扭转测量装置
公开(公告)号：US5661766A
公开(公告)日：1997-08-26
申请号：US389701
申请日：1995-02-14
申请人： Richard G. McClelland , Howard D. Cross
发明人： Richard G. McClelland , Howard D. Cross
IPC分类号： G21C17/003 , G01B17/00 , G21C17/06
CPC分类号： G21C17/06 , G21Y2002/201 , G21Y2002/204 , G21Y2004/30 , G21Y2004/40
摘要： An apparatus for measuring fuel assembly bow and twist comprising a fixturing apparatus, a reference device and an ultrasonic measuring device.
摘要翻译：一种用于测量燃料组件弓形和扭曲的装置，包括夹具装置，参考装置和超声波测量装置。

6. 发明授权

US5660037A Method for conversion of a reheat steam turbine power plant to a non-reheat combined cycle power plant 失效
标题翻译：将再热蒸汽轮机发电厂转换为非再热联合循环发电厂的方法
公开(公告)号：US5660037A
公开(公告)日：1997-08-26
申请号：US495012
申请日：1995-06-27
申请人： Heinz Termuehlen
发明人： Heinz Termuehlen
IPC分类号： F01K23/10 , F02C6/18
CPC分类号： F01K23/106 , Y02E20/16
摘要： A method and apparatus is disclosed for converting a reheat steam turbine plant to a non-reheat, combined cycle plant without requiring internal modification of the steam turbine unit. A reheat steam turbine power plant with a boiler and a steam turbine with a plurality of turbine sections, receiving steam under pressure and successively expanding the steam through the turbine sections, is converted to a non-reheat combined cycle plant by replacing the boiler with a dual-pressure heat recovery steam generator capable of producing main steam and secondary steam at differential temperature and pressure and by installing a trimming system to allow adjustment of the pressure drop between the exhaust of the first turbine section and the inlet of the second turbine section to prevent damage to the turbine blades. The non-reheat cycle plant may also be operated with secondary steam supplied at the inlet of the final turbine section to reduce the moisture content of the steam thereby preventing excessive wear on the turbine blades.
摘要翻译：公开了一种用于将再热汽轮机设备转换成非再热联合循环设备而不需要对汽轮机单元进行内部修改的方法和设备。具有锅炉和蒸汽轮机的再热蒸汽轮机发电厂具有多个涡轮机部分，在压力下接收蒸汽并且连续地使蒸汽通过涡轮部分膨胀，通过用锅炉代替锅炉而被转换成非再热联合循环设备双压热回收蒸汽发生器，其能够在不同的温度和压力下产生主蒸汽和二次蒸汽，并且通过安装修整系统以允许将第一涡轮部分的排气与第二涡轮部分的入口之间的压降调节到防止损坏涡轮叶片。非再热循环设备也可以在最终涡轮机部分的入口处供应的二次蒸汽操作，以减少蒸汽的含水量，从而防止涡轮机叶片上的过度磨损。

7. 发明授权

US5583897A Method for determining nuclear reactor fuel pellet density using gas displacement 失效
标题翻译：使用气体排放确定核反应堆燃料颗粒密度的方法
公开(公告)号：US5583897A
公开(公告)日：1996-12-10
申请号：US365276
申请日：1994-12-28
申请人： Donald J. Hill
发明人： Donald J. Hill
IPC分类号： G01N9/02 , G21C17/00 , G01N9/26
CPC分类号： G01N9/02 , G01N2009/028
摘要： A method for determining the density of nuclear fuel pellet using gas displacement and isothermal gas expansion.
摘要翻译：使用气体置换和等温气体膨胀来确定核燃料颗粒的密度的方法。

8. 发明授权

US5555281A Triangular lattice for LWR square fuel assemblies 失效
标题翻译： LWR方形燃料组件的三角格子
公开(公告)号：US5555281A
公开(公告)日：1996-09-10
申请号：US315379
申请日：1994-09-30
申请人： Harold E. Williamson , Kenneth V. Walters
发明人： Harold E. Williamson , Kenneth V. Walters
IPC分类号： G21C3/32 , G21C3/326 , G21C3/328 , G21C3/30
CPC分类号： G21C3/32 , G21C3/328 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , Y02E30/31 , Y02E30/32 , Y02E30/38
摘要： Triangular lattice for LWR square fuel assemblies.
摘要翻译： LWR方形燃料组件的三角格子。

9. 发明授权

US5434898A Nuclear fuel assembly 失效
标题翻译：核燃料组件
公开(公告)号：US5434898A
公开(公告)日：1995-07-18
申请号：US212443
申请日：1994-03-14
申请人： David J. Barkhurst
发明人： David J. Barkhurst
IPC分类号： G21C3/30 , G21C3/322 , G21C3/34 , G21C3/352 , G21C3/356
CPC分类号： G21C3/352 , G21C3/322 , G21C3/3563 , G21Y2002/201 , G21Y2002/30 , G21Y2004/30 , G21Y2004/302 , Y02E30/31 , Y02E30/38
摘要： A nuclear fuel assembly for a boiling water reactor having a spacer grid for positioning and retaining the fuel rods. The spacer grid comprising an upper grid structure and a lower grid structure. Each grid structure comprises a first set of grid strips and a second set of grid strips which intersect to form in each grid structure a lattice of rectangular and square shaped cells through which the fuel rods extend and which act against the fuel rods within the cells. The lattice in each of the upper grid structure and the lower grid structure being the same. The upper grid structure and the lower grid structure being oriented relative to one another so that each of the rectangular and square shaped cells in the upper grid structure is superimposed on a corresponding one of the rectangular and square shaped cells in the lower grid structure so as to act cooperatively against and provide support to a fuel rod on four sides of the fuel rod.
摘要翻译：一种用于沸水反应器的核燃料组件，其具有用于定位和保持燃料棒的间隔栅格。间隔网格包括上格栅结构和下网格结构。每个网格结构包括第一组网格条和第二组格栅条，其相交以在每个格栅结构中形成矩形和方形形状的单元的格子，燃料棒通过该格子延伸并对其内的燃料棒作用。每个上格栅结构和下格栅结构中的格子相同。上格栅结构和下格栅结构相对于彼此定向，使得上格栅结构中的每个矩形和正方形的单元叠加在下格栅结构中的相应的一个矩形和正方形的单元上，以便与燃料棒四侧的燃料棒协同作用并提供支撑。

10. 发明授权

US5375153A Coolant vent fuel rod and part length fuel rod having a reflex upper end fitting for a light water reactor 失效
标题翻译：冷却剂排放燃料棒和部分长度的燃料棒具有用于轻水反应堆的反射上端配件
公开(公告)号：US5375153A
公开(公告)日：1994-12-20
申请号：US995633
申请日：1992-12-17
申请人： John F. Patterson , George C. Cooke , Jack Yates
发明人： John F. Patterson , George C. Cooke , Jack Yates
IPC分类号： G21C3/322 , G21C3/326
CPC分类号： G21C3/322 , G21C3/326 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/38
摘要： An improved fuel rod is provided having a part-length fuel rod portion that improves performance with respect to typical part-length fuel rods without significant degradation of the benefits that are achieved by using such a system, e.g., improved fuel utilization, stability, and shut down margin. The present invention provides a fuel rod for a light water nuclear reactors that comprises a part-length fuel rod and an extension tube having at least one wall member defining an enclosed flow path therethrough, the extension tube being coupled to a portion of the part-length fuel rod so as to be disposed axially above the part-length fuel rod, and including at least one inlet opening, for allowing fluid that surrounds the rod and initially comprises a two phase mixture of steam and liquid, to enter the enclosed fluid path and at least one outlet opening located above the inlet opening, the extension tube includes means for separating at least some of the steam located in the fluid from the liquid located therein. The improved fuel rod allows steam to bypass the upper active portions of the fuel assembly. A nuclear fuel rod for a light water reactor having a part length fuel rod and a reflex upper end fitting which functions to separate the liquid and vapor steam portions of two phase flow.
摘要翻译：提供了一种改进的燃料棒，其具有部分长度的燃料棒部分，其相对于典型的部分长度的燃料棒提高了性能，而没有通过使用这种系统实现的益处的显着劣化，例如改进的燃料利用率，稳定性和关闭边际本发明提供了一种用于轻水核反应堆的燃料棒，其包括部分长度的燃料棒和延伸管，该延伸管具有至少一个限定通过其的封闭流动通道的壁构件，该延伸管与部分 - 并且包括至少一个入口，用于允许围绕杆的流体并且最初包括蒸汽和液体的两相混合物，以进入封闭的流体路径以及位于入口开口上方的至少一个出口，所述延伸管包括用于将位于流体中的至少一些位于流体中的蒸汽与位于其中的液体分开的装置。改进的燃料棒允许蒸汽绕过燃料组件的上部有效部分。一种用于轻水反应器的核燃料棒，其具有部分长度燃料棒和反射上端配件，其功能是分离两相流的液蒸汽蒸汽部分。

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