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1. 发明授权

US09835590B1 Device and method for checking fuel pellets with IFBA 有权
公开(公告)号：US09835590B1
公开(公告)日：2017-12-05
申请号：US15339051
申请日：2016-10-31
申请人： TECNATOM, S.A.
发明人： Pablo Jesús Piñeiro Fernández , Daniel Gómez Fernández , Leandro Gonzalo Langa , Victor Orlando Barcenilla Marseliano
IPC分类号： G21C3/20 , G01N27/82 , G21C3/62 , G21C17/00 , G01N33/22 , G21C3/04
CPC分类号： G01N27/82 , G01N27/041 , G01N33/222 , G21C3/20 , G21C3/626 , G21C17/00 , G21C17/06 , G21C21/02 , G21C2003/045 , G21C2003/047
摘要： Device and method for checking fuel rods with IFBA, their zirconium diboride coating. The device includes a variable magnetic field generator and a magnetic field pickup device, arranged in the vicinity of the rod, as well as a control system for comparing both fields in order to measure the electric conductivity of the rod. The method includes the steps of: arranging the rod to be measured between the generator and the pickup device; generation of a variable magnetic field in the generator; picking-up of the magnetic field; comparison between the generated magnetic field and the picked-up one in order to quantify the electric conductivity of the rod; if the electric conductivity differs from a reference value, consider the rod for checking or recycling.

2. 发明申请

US20130114781A1 FULLY CERAMIC MICROENCAPSULATED REPLACEMENT FUEL ASSEMBLIES FOR LIGHT WATER REACTORS 审中-公开
标题翻译：全面陶瓷微型替代燃料燃料组装轻水反应堆
公开(公告)号：US20130114781A1
公开(公告)日：2013-05-09
申请号：US13669200
申请日：2012-11-05
申请人： Francesco Venneri , Won Jae Lee
发明人： Francesco Venneri , Won Jae Lee
IPC分类号： G21C3/07
CPC分类号： G21C3/07 , G21C3/30 , G21C3/62 , G21C3/626 , Y02E30/38
摘要： A fully ceramic micro-encapsulated fuel assembly for a light water nuclear reactor includes a set of FCM fuel rods bundled in a square matrix arrangement. Fully ceramic micro-encapsulated fuel assemblies replace standard reference solid fuel assemblies with smaller number of FCM fuel rods that have a larger diameter than the diameter of the solid standard reference fuel rods, while keeping similar amounts of fissile material in the fuel assembly and maintaining comparable rates of burnup and number of EFPDs, and compatible power production, heat transfer and thermo-hydraulic features. A fully ceramic micro-encapsulated fuel rod includes multiple fully ceramic micro-encapsulated fuel pellets, which are comprised of tristructural-isotropic particles. In order to obtain compatible burnup rates with the standard reference fuel, the tristructural-isotropic particles have preferentially large diameter and packing fraction. Furthermore, Erbium oxide is included in the sintered mix of the SiC compact to serve as a burnable poison.
摘要翻译：用于轻水核反应堆的全陶瓷微胶囊化燃料组件包括以矩阵方式捆绑的一组FCM燃料棒。全陶瓷微胶囊燃料组件取代标准参考固体燃料组件，其具有较少数量的FCM燃料棒，其具有比固体标准参考燃料棒的直径更大的直径，同时在燃料组件中保持相似量的裂变材料并保持可比性燃耗率和EFPD数量，兼容的电力生产，传热和热液压特性。完全陶瓷的微胶囊燃料棒包括由三组分各向同性颗粒组成的多个完全陶瓷的微胶囊燃料颗粒。为了获得与标准参考燃料相容的燃耗率，三组分各向同性颗粒具有优先大直径和填料分数。此外，氧化铒包含在SiC压块的烧结混合物中，作为可燃毒物。

3. 发明申请

US20120314831A1 Light Water Reactor TRISO Particle-Metal-Matrix Composite Fuel 审中-公开
标题翻译：轻水反应堆TRISO颗粒金属基复合燃料
公开(公告)号：US20120314831A1
公开(公告)日：2012-12-13
申请号：US13157632
申请日：2011-06-10
申请人： Kurt A. Terrani , James O. Kiggans, JR.
发明人： Kurt A. Terrani , James O. Kiggans, JR.
IPC分类号： G21C3/60 , G21C3/06
CPC分类号： G21C3/626 , B22F2999/00 , C22C1/101 , C22C1/1084 , C22C32/0089 , G21C3/06 , G21C21/02 , Y02E30/38 , B22F3/02 , B22F3/15 , B22F3/20
摘要： A metal matrix, microencapsulated nuclear fuel component includes an integral metal matrix having an outer buffer region and an inner fuel containing region; a multiplicity of nuclear fuel capsules embedded in the fuel containing region of the matrix for encapsulating a nuclear fuel particle and products resulting from nuclear and chemical reactions; and a nuclear fuel particle encapsulated in each of the nuclear capsules.
摘要翻译：金属基质，微囊化核燃料组分包括具有外部缓冲区域和内部燃料含有区域的整体金属基质; 嵌入在基质的燃料容纳区域中的多种核燃料胶囊，用于封装核燃料颗粒和由核和化学反应产生的产物; 以及封装在每个核胶囊中的核燃料颗粒。

4. 发明申请

US20090129533A1 Nuclear fuel 有权
标题翻译：核燃料
公开(公告)号：US20090129533A1
公开(公告)日：2009-05-21
申请号：US11631230
申请日：2005-03-01
申请人： Leszek Andrzej Kuczynski
发明人： Leszek Andrzej Kuczynski
IPC分类号： G21C3/07 , B05D7/00
CPC分类号： G21C3/07 , G21C3/58 , G21C3/62 , G21C3/623 , G21C3/626 , G21C21/02 , G21Y2002/104 , G21Y2002/206 , G21Y2002/303 , G21Y2004/30 , G21Y2004/303 , G21Y2004/40 , Y02E30/38
摘要： This invention relates to a method of preparing nuclear fuel including the step of depositing at least two adjacent series of layers (16, 18) around a kernel (12) of fissile material, each series comprising a layer of pyrolytic carbon (16) contiguous with a layer of silicon carbide (18) and each layer (16, 18) having a thickness of at most (10) ricrometres, such that alternate layers of (16, 18) of pyrolytic carbon and silicon carbide are deposited around the kernel (12). The invention extends to a nuclear fuel element (10).
摘要翻译：本发明涉及一种制备核燃料的方法，包括在易裂变材料的核（12）周围沉积至少两个相邻的层（16,18）的步骤，每个系列包括一层热解碳（16）一层碳化硅（18）和每个层（16,18），其厚度至多为（10）微米，使得热解碳和碳化硅的交替层（16,18）沉积在核（12）周围）。本发明延伸到核燃料元件（10）。

5. 发明申请

US20030103594A1 Monobloc fuel element and boiling water and fast spectrum nuclear reactor using such elements 有权
标题翻译：单体燃料元素和沸水以及使用这种元素的快速核反应堆
公开(公告)号：US20030103594A1
公开(公告)日：2003-06-05
申请号：US10030427
申请日：2002-01-10
发明人： Patrick Aujollet , Jacques Porta , Stefano Baldi
IPC分类号： G21C019/28 , G21C015/00
CPC分类号： G21C3/64 , G21C1/084 , G21C3/36 , G21C3/626 , G21Y2002/304 , G21Y2002/601 , G21Y2004/30 , Y02E30/31 , Y02E30/38 , Y10S376/903
摘要： Single piece fuel element and fast spectrum boiling water reactor using elements of this type. A single piece fuel element (10) is formed from coated fissile particles embedded in a matrix made from a material such as SiC which is inert to all fissile and fertile heavy nuclei and to the coolant fluid circulating in and around this element. Furthermore, the fuel element (10) comprises parallel plates (12) delimiting spaces (14, 20) between them. The ratio between the thickness (e1) of the plates and the width e2 of the spaces means that the fuel element can be put in fast spectrum or thermal spectrum at will. An application of the invention to a fast spectrum boiling water nuclear reactor operating with natural circulation in which the above mentioned ratio is approximately equal to 1 enables a high consumption of plutonium.
摘要翻译：单片燃料元件和快速沸腾水反应堆，采用这种类型的元素。单片燃料元件（10）由嵌入由诸如SiC的材料制成的基体中的涂覆的可裂变颗粒形成，所述基体对所有易裂变和可重的重核是惰性的，以及在该元件内和周围循环的冷却剂流体。此外，燃料元件（10）包括在它们之间限定空间（14,20）的平行板（12）。板的厚度（e1）与空间的宽度e2之间的比率意味着燃料元件可以被置于快速光谱或热光谱中。将本发明应用于以上述比例大约等于1的自然循环运行的快速沸腾沸水核反应堆使得能够高消耗钚。

6. 发明授权

US4560575A Method for coating a nuclear fuel with boron nitride 失效
标题翻译：用氮化硼涂覆核燃料的方法
公开(公告)号：US4560575A
公开(公告)日：1985-12-24
申请号：US564057
申请日：1983-12-21
申请人： Larry R. Eisenstatt , Kenneth C. Radford
发明人： Larry R. Eisenstatt , Kenneth C. Radford
IPC分类号： G21C3/20 , C23C16/34 , G21C3/62 , G21C3/06
CPC分类号： G21C3/626 , C23C16/342 , Y02E30/38
摘要： A method of applying a burnable absorber coating on a nuclear fuel pellet comprising the step of exposing the nuclear fuel pellet to a gas stream of boron trichloride and anhydrous ammonia at a temperature of from about 600.degree.-800.degree. C. A coating of boron nitride is formed as a reaction product of boron trichloride with anhydrous ammonia on the fuel pellet.
摘要翻译：一种将可燃性吸收剂涂层涂覆在核燃料颗粒上的方法，包括将核燃料颗粒暴露于约600-800℃的温度下的三氯化硼和无水氨的气流的步骤。在燃料颗粒上形成为三氯化硼与无水氨的反应产物。

7. 发明授权

US4495215A Fluidized bed furnace and method of emptying the same 失效
标题翻译：流化床炉及其排空方法
公开(公告)号：US4495215A
公开(公告)日：1985-01-22
申请号：US457054
申请日：1983-01-10
申请人： Eike Barnert , Heinz Schmitz
发明人： Eike Barnert , Heinz Schmitz
IPC分类号： B01J2/16 , B01J8/00 , B01J8/24 , C23C16/442 , F27B15/08 , G21C3/62 , G21C21/02 , B05B1/34 , C23C11/00
CPC分类号： G21C3/626 , B01J8/003 , C23C16/442 , Y02E30/38 , Y10S118/05
摘要： A fluidized bed furnace for coating fuel particles for nuclear reactors, ticularly high temperature reactors, can be emptied without cooling down the reaction tube by substituting an inert gas for the coating gas and then lowering the inner tube through which this gas is fed so as to clear a passage in the surrounding outer gas feed tube through which the kernels may fall down to a diverting device in the intermediate space between the inner and outer tubes that guides the kernels to a discharge tube. The reaction tube is emptied by lowering the feed gas pressure by cutting off the carrier gas flow and regulating the escape of the inert gas through an overflow pipe. After the reactor is emptied, the flow of carrier gas can be restored and the overflow pipe shut, so that the reactor can be refilled, after which the flow of coating gas is restored and another coating operation can begin without delay.
摘要翻译：用于涂覆用于核反应堆，特别是高温反应器的燃料颗粒的流化床炉可以通过用惰性气体代替涂覆气体而冷却反应管，然后降低供给该气体的内管，从而排空清除周围外部气体供给管中的通道，通过该通道，内部可以通过该通道在内部管和外部管之间的中间空间中落下到转向装置，以将颗粒引导到排出管。通过切断载气流并通过溢流管调节惰性气体的逸出来降低进料气体压力使反应管排空。反应器排空后，可以恢复载气流，溢流管关闭，使反应器可以重新填充，之后还原涂层气体的流动，另外涂层操作可以无延迟地开始。

8. 发明授权

US4342284A Process for the coating of particles for the production of fuel and/or absorbing elements for nuclear reactors and apparatus therefor 失效
标题翻译：用于生产用于核反应堆的燃料和/或吸收元件的颗粒的涂覆方法及其设备
公开(公告)号：US4342284A
公开(公告)日：1982-08-03
申请号：US866339
申请日：1978-01-03
申请人： Harald Loser , Gerhard Schmidt , Wolfgang Warzawa , Klaus Wegner
发明人： Harald Loser , Gerhard Schmidt , Wolfgang Warzawa , Klaus Wegner
IPC分类号： C23C16/442 , G21C3/62 , C23C11/10
CPC分类号： C23C16/442 , G21C3/626 , Y02E30/38
摘要： Fuel, fertile material and/or absorber material containing particles for fuel and/or absorber elements in nuclear reactors are coated by a process comprising introducing thermally cleavable gases in the reaction space heated to above 1000.degree. C. of a fluidized bed unit with the help of a gas inlet nozzle cooled with a cooling medium and having an elongated inlet tube, decomposing the cleavable gases after leaving the nozzle, depositing the decomposition products on fuel, fertile material or absorber particles present in the fluidized bed and bringing these coated particles into fuel elements or absorber elements. The cooling medium is solely gaseous and only the portion of the inlet tube for the nozzle tips of the gas inlet nozzles within the axis are cooled and the heat flow penetrating from outside is reduced by heat insulation. An apparatus for carrying out the process is also described.
摘要翻译：在核反应堆中含有用于燃料和/或吸收剂元件的颗粒的燃料，肥沃材料和/或吸收材料通过包括在加热至高于1000℃的反应空间中引入可热切割气体的方法进行涂覆，该反应空间具有帮助的气体入口喷嘴，其用冷却介质冷却并具有细长的入口管，在离开喷嘴之后分解可切割气体，将分解产物沉积在存在于流化床中的燃料，可食材料或吸收剂颗粒上并使这些涂覆的颗粒进入燃料元件或吸收元件。冷却介质是单独气体的，并且只有用于轴内的气体入口喷嘴的喷嘴尖端的入口管的部分被冷却，并且通过隔热来减少从外部渗透的热流。还描述了用于执行该过程的装置。

9. 发明授权

US3945629A Refractory carbide particles with thin outer layer of highly crystalline carbon 失效
$Refractory carbide particles with thin outer layer of highly crystalline carbon$
标题翻译：难熔碳化物颗粒具有薄的外层高度结晶的碳
公开(公告)号：US3945629A
公开(公告)日：1976-03-23
申请号：US515741
申请日：1965-12-22
申请人： David V. Ragone , Massoud T. Simnad
发明人： David V. Ragone , Massoud T. Simnad
IPC分类号： C01B31/30 , G21C3/62 , G21C21/00
CPC分类号： G21C3/626 , C01B31/30 , G21C3/62 , C01P2002/78 , C01P2004/32 , C01P2004/61 , C01P2004/80 , C01P2006/80 , Y02E30/38 , Y10S65/04
摘要： A method of making refractory carbide particles, which method comprises heating a granule containing refractory metal and carbon to a sufficient temperature to form a molten droplet of refractory carbide, carbon being included in said droplet in excess of the stoichiometric amount which combines with the refractory metal in the highest usual valence thereof, and cooling said molten droplet below the eutectic temperature within 60 seconds or less to cause a thin continuous layer of highly crystalline carbon to precipitate out on the outer surface thereof.
摘要翻译：一种制造耐火碳化物颗粒的方法，该方法包括将含有难熔金属和碳的颗粒加热至足够的温度以形成难熔碳化物的熔融液滴，所述液滴中包含的碳超过与难熔金属组合的化学计量量以最高的通常的价数，并且在60秒以内将所述熔融液滴冷却到共晶温度以下，使得高度结晶的碳的薄的连续层在其外表面上析出。

10. 发明授权

US3904736A Preparing microspheres of actinide nitrides from carbon containing oxide sols 失效
标题翻译：由含碳氧化物溶胶制备锕系氮化物微球
公开(公告)号：US3904736A
公开(公告)日：1975-09-09
申请号：US55434566
申请日：1966-06-01
申请人： GRACE W R & CO
发明人： TRIGGIANI LEONARD V
IPC分类号： C01B21/06 , C01B21/082 , G21C3/62 , C01G56/00 , C01F15/00
CPC分类号： G21C3/62 , C01B21/063 , C01B21/0821 , C01B21/0828 , C01P2002/77 , C01P2004/32 , C01P2004/61 , C01P2006/80 , G21C3/626 , Y02E30/38
摘要： A process for preparing uranium nitride, uranium oxynitride and uranium carboxynitride microspheres and the microspheres as compositions of matter. The microspheres are prepared from carbide sols by reduction and nitriding steps.
摘要翻译：一种制备氮化铀，氧氮化铀和铀羧氮氮化物微球以及微球作为物质组成的方法。微球通过还原和氮化步骤由碳化物溶胶制备。

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