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1. 发明申请

US20100266094A1 DUAL-COOLED NUCLEAR FUEL ROD HAVING ANNULAR PLUGS AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：具有环形管的双冷却核燃料棒及其制造方法
公开(公告)号：US20100266094A1
公开(公告)日：2010-10-21
申请号：US12559059
申请日：2009-09-14
申请人： Hyung-Kyu Kim , Jong-Hun Kim , Dae-Ho Kim , Kun-Woo Song , Kyung-Ho Yoon , Young-Ho Lee , Jae-Yong Kim , Kang-Hee Lee
发明人： Hyung-Kyu Kim , Jong-Hun Kim , Dae-Ho Kim , Kun-Woo Song , Kyung-Ho Yoon , Young-Ho Lee , Jae-Yong Kim , Kang-Hee Lee
IPC分类号： G21C3/16 , C21D1/40
CPC分类号： G21C3/02 , G21C3/10 , G21C21/02 , Y02E30/40
摘要： A dual-cooled nuclear fuel rod and a method of manufacturing the same are provided. The nuclear fuel rod includes an outer cladding tube having a circular cross section, an inner cladding tube having an outer diameter smaller than an inner diameter of the outer cladding tube, and a length longer than the outer cladding tube, and located in parallel in the outer cladding tube, a pellet charged in a space between the outer and inner cladding tubes and generating energy by nuclear fission, and first and second end plugs coupling opposite ends of the outer cladding tube to stepped outer joints formed on outer circumferences of first ends thereof and coupling opposite ends of the inner cladding tube to stepped inner joints formed on inner circumferences of the first ends thereof.
摘要翻译：提供了双冷核燃料棒及其制造方法。核燃料棒包括具有圆形横截面的外包层管，外包层的外径小于外包层管的内径，长度比外包层管长，并且平行于外包层管，填充在外包层管和内包壳管之间的空间中并通过核裂变产生能量的颗粒，以及将外包层管的相对端连接到形成在其第一端的外周上的阶梯式外接头的第一和第二端塞并且将内包层管的相对端连接到形成在其第一端的内周上的阶梯式内接头。

2. 发明授权

US08891724B2 Dual-cooled nuclear fuel rod having annular plugs and method of manufacturing the same 有权
标题翻译：具有环形塞的双冷核燃料棒及其制造方法
公开(公告)号：US08891724B2
公开(公告)日：2014-11-18
申请号：US12559059
申请日：2009-09-14
申请人： Hyung-Kyu Kim , Jong-Hun Kim , Dae-Ho Kim , Kun-Woo Song , Kyung-Ho Yoon , Young-Ho Lee , Jae-Yong Kim , Kang-Hee Lee
发明人： Hyung-Kyu Kim , Jong-Hun Kim , Dae-Ho Kim , Kun-Woo Song , Kyung-Ho Yoon , Young-Ho Lee , Jae-Yong Kim , Kang-Hee Lee
IPC分类号： G21C3/00 , G21C3/02 , G21C3/10 , G21C21/02
CPC分类号： G21C3/02 , G21C3/10 , G21C21/02 , Y02E30/40
摘要： A dual-cooled nuclear fuel rod and a method of manufacturing the same are provided. The nuclear fuel rod includes an outer cladding tube having a circular cross section, an inner cladding tube having an outer diameter smaller than an inner diameter of the outer cladding tube, and a length longer than the outer cladding tube, and located in parallel in the outer cladding tube, a pellet charged in a space between the outer and inner cladding tubes and generating energy by nuclear fission, and first and second end plugs coupling opposite ends of the outer cladding tube to stepped outer joints formed on outer circumferences of first ends thereof and coupling opposite ends of the inner cladding tube to stepped inner joints formed on inner circumferences of the first ends thereof.
摘要翻译：提供了双冷核燃料棒及其制造方法。核燃料棒包括具有圆形横截面的外包层管，外包层的外径小于外包层管的内径，长度比外包层管长，并且平行于外包层管，填充在外包层管和内包壳管之间的空间中并通过核裂变产生能量的颗粒，以及将外包层管的相对端连接到形成在其第一端的外周上的阶梯式外接头的第一和第二端塞并且将内包层管的相对端连接到形成在其第一端的内周上的阶梯式内接头。

3. 发明申请

US20100172460A1 PERFORATED PLATE SUPPORT FOR DUAL-COOLED SEGMENTED FUEL ROD 有权
标题翻译：双冷却分段燃油柱的执行板支撑
公开(公告)号：US20100172460A1
公开(公告)日：2010-07-08
申请号：US12421829
申请日：2009-04-10
申请人： Kyung-Ho Yoon , Hyung-Kyu Kim , Jae-Yong Kim , Young-Ho Lee , Kang-Hee Lee , Tae-Hyun Chun , Wang-Kee In , Dong-Seok Oh , Chang Hwan Shin , Kun-Woo Song
发明人： Kyung-Ho Yoon , Hyung-Kyu Kim , Jae-Yong Kim , Young-Ho Lee , Kang-Hee Lee , Tae-Hyun Chun , Wang-Kee In , Dong-Seok Oh , Chang Hwan Shin , Kun-Woo Song
IPC分类号： G21C3/34
CPC分类号： G21C3/322 , G21C3/3305 , G21C3/3315 , Y02E30/38
摘要： A perforated plate support supports dual-cooled fuel rods, each of which has concentric outer and inner tubes and is coupled with upper and lower end plugs at upper and lower ends thereof, and guide thimbles, each of which is used as a passage for a control rod. The perforated plate support is formed as a support plate having the shape of a flat plate, which includes internal channel holes, each of which has a diameter corresponding to an outer diameter of the inner tube, guide thimble holes, each of which has a diameter corresponding to an outer diameter of the guide thimble, and sub-channel holes around each internal channel hole. The upper or lower end of the dual-cooled fuel rod is coupled to the support plate such that the outer diameter of the inner tube is matched with the diameter of the internal channel hole.
摘要翻译：多孔板支撑件支撑双重冷却的燃料棒，每个燃料棒具有同心的外管和内管，并且在其上端和下端与上端和下端塞连接，导向套管每一个用作通道控制棒。多孔板支撑件形成为具有平板形状的支撑板，该支撑板包括内部通道孔，每个内部通道孔的直径对应于内部管的外径，导向套管孔各自具有直径对应于导向套管的外径，以及在每个内部通道孔周围的子通道孔。双冷却燃料棒的上端或下端与支撑板相连，使得内管的外径与内通道孔的直径相匹配。

4. 发明授权

US08275088B2 Perforated plate support for dual-cooled segmented fuel rod 有权
标题翻译：用于双冷段分段燃料棒的穿孔板支撑
公开(公告)号：US08275088B2
公开(公告)日：2012-09-25
申请号：US12421829
申请日：2009-04-10
申请人： Kyung-Ho Yoon , Hyung-Kyu Kim , Jae-Yong Kim , Young-Ho Lee , Kang-Hee Lee , Tae-Hyun Chun , Wang-Kee In , Dong-Seok Oh , Chang Hwan Shin , Kun-Woo Song
发明人： Kyung-Ho Yoon , Hyung-Kyu Kim , Jae-Yong Kim , Young-Ho Lee , Kang-Hee Lee , Tae-Hyun Chun , Wang-Kee In , Dong-Seok Oh , Chang Hwan Shin , Kun-Woo Song
IPC分类号： G21C3/34
CPC分类号： G21C3/322 , G21C3/3305 , G21C3/3315 , Y02E30/38
摘要： A perforated plate support supports dual-cooled fuel rods, each of which has concentric outer and inner tubes and is coupled with upper and lower end plugs at upper and lower ends thereof, and guide thimbles, each of which is used as a passage for a control rod. The perforated plate support is formed as a support plate having the shape of a flat plate, which includes internal channel holes, each of which has a diameter corresponding to an outer diameter of the inner tube, guide thimble holes, each of which has a diameter corresponding to an outer diameter of the guide thimble, and sub-channel holes around each internal channel hole. The upper or lower end of the dual-cooled fuel rod is coupled to the support plate such that the outer diameter of the inner tube is matched with the diameter of the internal channel hole.
摘要翻译：多孔板支撑件支撑双重冷却的燃料棒，每个燃料棒具有同心的外管和内管，并且在其上端和下端与上端和下端塞连接，导向套管每一个用作通道控制棒。多孔板支撑件形成为具有平板形状的支撑板，该支撑板包括内部通道孔，每个内部通道孔的直径对应于内部管的外径，导向套管孔各自具有直径对应于导向套管的外径，以及在每个内部通道孔周围的子通道孔。双冷却燃料棒的上端或下端与支撑板相连，使得内管的外径与内通道孔的直径相匹配。

5. 发明申请

US20070242793A1 Spacer grid spring for increasing the conformal contact area with fuel rod 有权
标题翻译：间隔栅格弹簧用于增加与燃料棒的共形接触面积
公开(公告)号：US20070242793A1
公开(公告)日：2007-10-18
申请号：US11707450
申请日：2007-02-16
申请人： Kee-Nam Song , Kyung-Ho Yoon , Kun-Woo Song , Kang-Hee Lee , Kyung-Jin Park
发明人： Kee-Nam Song , Kyung-Ho Yoon , Kun-Woo Song , Kang-Hee Lee , Kyung-Jin Park
IPC分类号： G21C3/34
CPC分类号： G21C3/356 , G21Y2002/201 , G21Y2002/206 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A grid strap includes a spacer grid spring that increases the conformal contact area with a fuel rod of a nuclear fuel rod assembly. The shape of the spacer grid spring of the grid strap which is in contact with the fuel rod is optimized, thereby the elasticity of the spacer grid spring contacting the fuel rod is increased, the conformal contact area with a contact portion of the spacer grid spring contacting the fuel rod when the fuel rod is inserted into each cell of a spacer grid is expanded to obtain uniform stress distribution, and excessive plastic deformation of the spacer grid spring can be reduced. Further, magnitude and distribution of contact pressure between the fuel rod and the spacer grid spring are improved, thereby reducing the possibility of fretting wear caused by contact between the fuel rod and the spacer grid spring. The elastic behavior region of the spacer grid spring is expanded, so that the fuel rod can be reliably supported until the lifetime of the fuel rod expires despite changes in the supporting conditions of the fuel rod.
摘要翻译：格栅带包括间隔栅格弹簧，其增加与核燃料棒组件的燃料棒的共形接触面积。与燃料棒接触的网格带的间隔栅格弹簧的形状被优化，从而与接触燃料棒的间隔栅格弹簧的弹性增加，与间隔栅格弹簧的接触部分的共形接触面积当将燃料棒插入到间隔栅格的每个电池中时，使燃料棒接触而膨胀以获得均匀的应力分布，并且可以减小间隔栅格弹簧的过大的塑性变形。此外，燃料棒和间隔栅格弹簧之间的接触压力的大小和分布得到改善，从而降低了由于燃料棒和间隔栅格弹簧之间的接触引起的微动磨损的可能性。间隔栅格弹簧的弹性行为区域被扩大，使得燃料棒可以被可靠地支撑，直到燃料棒的寿命尽管燃料棒的支撑条件发生变化而过期。

6. 发明授权

US08085895B2 Spacer grid spring for increasing the conformal contact area with fuel rod 有权
标题翻译：间隔栅格弹簧用于增加与燃料棒的共形接触面积
公开(公告)号：US08085895B2
公开(公告)日：2011-12-27
申请号：US11707450
申请日：2007-02-16
申请人： Kee-Nam Song , Kyung-Ho Yoon , Kun-Woo Song , Kang-Hee Lee , Kyung-Jin Park
发明人： Kee-Nam Song , Kyung-Ho Yoon , Kun-Woo Song , Kang-Hee Lee , Kyung-Jin Park
IPC分类号： G21C3/34
CPC分类号： G21C3/356 , G21Y2002/201 , G21Y2002/206 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A grid strap includes a spacer grid spring that increases the conformal contact area with a fuel rod of a nuclear fuel rod assembly. The shape of the spacer grid spring is optimized, thereby increasing the elasticity of the spacer grid spring contacting the fuel rod, expanding the conformal contact area with a contact portion between the spacer grid spring and fuel rod to obtain uniform stress distribution, and reducing excessive plastic deformation of the spacer grid spring. Further, magnitude and distribution of contact pressure between the fuel rod and the spacer grid spring are improved, thereby reducing the possibility of fretting wear caused by contact between the fuel rod and the spacer grid spring. Lastly, the elastic behavior region of the spacer grid spring is expanded, so that the fuel rod can be reliably supported until the fuel rod expires despite changes in the supporting conditions of the fuel rod.
摘要翻译：格栅带包括间隔栅格弹簧，其增加与核燃料棒组件的燃料棒的共形接触面积。间隔栅格弹簧的形状被优化，从而增加与燃料棒接触的间隔栅格弹簧的弹性，将间隔栅格弹簧和燃料棒之间的接触部分扩大共形接触面积，以获得均匀的应力分布，并减少过量间隔网格弹簧的塑性变形。此外，燃料棒和间隔栅格弹簧之间的接触压力的大小和分布得到改善，从而降低了由于燃料棒和间隔栅格弹簧之间的接触引起的微动磨损的可能性。最后，间隔栅格弹簧的弹性行为区域被扩大，使得燃料棒可以被可靠地支撑，直到燃料棒在燃料棒的支撑条件发生变化时才过期。

7. 发明申请

US20120098149A1 METHOD OF CONTROLLING SOLUBILITY OF ADDITIVES AT AND NEAR GRAIN BOUNDARIES, AND METHOD OF MANUFACTURING SINTERED NUCLEAR FUEL PELLET HAVING LARGE GRAIN SIZE USING THE SAME 有权
标题翻译：控制添加剂在谷物边界附近的溶解性的方法以及使用其制造具有大颗粒尺寸的烧结核燃料片的方法
公开(公告)号：US20120098149A1
公开(公告)日：2012-04-26
申请号：US13275784
申请日：2011-10-18
申请人： JAE-HO YANG , Keon-Sik Kim , Kun-Woo Song , Jong-Hun Kim , Young-Woo Rhee , Dong-Joo Kim , Chill-Sun Ryu
发明人： JAE-HO YANG , Keon-Sik Kim , Kun-Woo Song , Jong-Hun Kim , Young-Woo Rhee , Dong-Joo Kim , Chill-Sun Ryu
IPC分类号： G21C21/00
CPC分类号： G21C21/02 , G21C3/62 , G21C3/623 , Y02E30/38
摘要： Provided are a method of controlling the compositional gradient and solubility of doped-additives at grain boundaries during sintering of a uranium-based oxide green pellet including the additives, and a method of manufacturing a sintered nuclear fuel pellet having a large grain size using the same. The grain boundary solubility of the doped-additives is maintained at a certain level by stepwise varying of an oxygen partial pressure during isothermal sintering of a uranium-based oxide green pellet including the additives. The method of manufacturing a sintered nuclear fuel pellet having a large grain size includes preparing additive mixed uranium oxide powder, forming an additive mixed uranium oxide green pellet using the mixed powder, heating the green pellet to a sintering temperature in a gas atmosphere having a low oxygen partial pressure, and sintering while a sintering gas atmosphere is changed to stepwise increase an oxygen partial pressure at the isothermal sintering temperature.
摘要翻译：提供一种在包含添加剂的铀基氧化物生颗粒的烧结期间控制掺杂添加剂在晶界处的组成梯度和溶解度的方法，以及使用其制备具有大晶粒尺寸的烧结核燃料芯片的方法。掺杂添加剂的晶界溶解度通过在包括添加剂的铀基氧化物生颗粒的等温烧结期间逐步改变氧分压而保持在一定水平。制造具有大粒径的烧结核燃料颗粒的方法包括制备添加剂混合氧化铀粉末，使用混合粉末形成添加剂混合的氧化铀颗粒，将生坯颗粒加热至低浓度的气体气氛中的烧结温度氧分压和烧结，同时烧结气氛改变为在等温烧结温度下逐步增加氧分压。

8. 发明授权

US06251309B1 Method of manufacturing large-grained uranium dioxide fuel pellets containing U3O8 失效
标题翻译：制造含有U3O8的大颗粒二氧化铀燃料颗粒的方法
公开(公告)号：US06251309B1
公开(公告)日：2001-06-26
申请号：US09357169
申请日：1999-07-19
申请人： Kun-Woo Song , Keon-Sik Kim , Ki-Won Kang , Jong-Hun Kim , Youn-Ho Jung
发明人： Kun-Woo Song , Keon-Sik Kim , Ki-Won Kang , Jong-Hun Kim , Youn-Ho Jung
IPC分类号： G21G400
CPC分类号： G21C3/623 , G21C21/02 , G21Y2002/302 , G21Y2002/304 , G21Y2004/40 , G21Y2004/60 , Y02E30/38
摘要： Disclosed is a method of manufacturing large-grained uranium dioxide pellets through the use of U3O8 single crystals. The method consists of two main steps; producing U3O8 single crystals and manufacturing large-grained UO2 pellets. The U3O8 single crystals are produced by annealing U3O8 powder to make U3O8 polycrystalline aggregates having a large crystal size, and by dividing the U3O8 polycrystalline aggregate into its constituent U3O8 single crystals. Large-grained UO2 pellets are produced by forming a mixture comprising UO2 powder and the U3O8 single crystals, making granules of the mixture, pressing the granules into green pellets, and sintering the green pellets above 1600° C. for more than one hour in a reducing gas. The U3O8 powder is produced preferably by heating defective UO2 pellets in air to oxidize UO2 to U3O8. The invention provides a method of manufacturing a large-grained UO2 pellet with defective pellets reused.
摘要翻译：公开了通过使用U3O8单晶制造大粒径二氧化铀颗粒的方法。该方法由两个主要步骤组成：生产U3O8单晶并制造大粒度UO2颗粒。 U3O8单晶通过退火U3O8粉末制成具有大晶体尺寸的U3O8多晶聚集体，并将U3O8多晶聚集体分成其组成的U3O8单晶。通过形成包含UO 2粉末和U 3 O 8单晶的混合物来制备大粒度的UO2颗粒，制备混合物的颗粒，将颗粒压成生球团矿，并将生坯颗粒在1600℃以上烧结超过1小时减少气体。 U3O8粉末优选通过在空气中加热有缺陷的UO 2颗粒而氧化U 2 O至U 3 O 8。本发明提供一种制造具有有缺陷的颗粒的大颗粒UO2颗粒的方法。

9. 发明授权

US08585939B2 Method for preparing sintered annular nuclear fuel pellet 有权
标题翻译：烧结环形核燃料颗粒的制备方法
公开(公告)号：US08585939B2
公开(公告)日：2013-11-19
申请号：US12871146
申请日：2010-08-30
申请人： Young-Woo Rhee , Dong-Joo Kim , Kun-Woo Song , Jong-Hun Kim , Keon-Sik Kim , Jae-Ho Yang , Chill-Sun Ryu
发明人： Young-Woo Rhee , Dong-Joo Kim , Kun-Woo Song , Jong-Hun Kim , Keon-Sik Kim , Jae-Ho Yang , Ki-Won Kang
IPC分类号： G21C21/00 , B28B21/00 , B28B3/00 , C04B33/32
CPC分类号： G21C21/02
摘要： A method for fabricating a sintered annular nuclear fuel pellet includes molding nuclear fuel powder or granule, an oxide of a fissile element (M), to fabricate an annular nuclear fuel green body. A rod-like shaped structure is inserted into the annular nuclear fuel green body and sintered in a slight oxidizing gas atmosphere such that the oxide of the fissile element has a balanced O/M ratio higher than a desired O/M ratio (oxygen/fissile element) of a final sintered annular nuclear fuel pellet, while being maintained in a cubic phase. The sintered annular nuclear fuel pellet is then reduced in a reductive gas atmosphere so as to have the desired O/M ratio in the state that the rod-like shaped structure is inserted.
摘要翻译：一种烧结环形核燃料颗粒的制造方法，包括成型核燃料粉末或颗粒，易裂变元素（M）的氧化物，以制造环形核燃料生坯。棒形结构被插入到环形核燃料生坯中并在轻微的氧化气体气氛中烧结，使得易裂变元素的氧化物具有高于所需O / M比的平衡O / M比（氧/裂变元素）的最终烧结环形核燃料颗粒，同时保持立方相。然后将烧结的环形核燃料颗粒在还原性气体气氛中还原，以便在棒状结构被插入的状态下具有所需的O / M比。

10. 发明申请

US20110049734A1 Method for Preparing Sintered Annular Nuclear Fuel Pellet 有权
标题翻译：烧结环形核燃料颗粒的制备方法
公开(公告)号：US20110049734A1
公开(公告)日：2011-03-03
申请号：US12871146
申请日：2010-08-30
申请人： Young-Woo Rhee , Dong-Joo Kim , Kun-Woo Song , Jong-Hun Kim , Keon-Sik Kim , Jae-Ho Yang , Ki-Won Kang , Chill Sun Ryu
发明人： Young-Woo Rhee , Dong-Joo Kim , Kun-Woo Song , Jong-Hun Kim , Keon-Sik Kim , Jae-Ho Yang , Ki-Won Kang , Chill Sun Ryu
IPC分类号： G21C21/02
CPC分类号： G21C21/02
摘要： A method for fabricating a sintered annular nuclear fuel pellet includes molding nuclear fuel powder or granule, an oxide of a fissile element (M), to fabricate an annular nuclear fuel green body. A rod-like shaped structure is inserted into the annular nuclear fuel green body and sintered in a slight oxidizing gas atmosphere such that the oxide of the fissile element has a balanced O/M ratio higher than a desired O/M ratio (oxygen/fissile element) of a final sintered annular nuclear fuel pellet, while being maintained in a cubic phase. The sintered annular nuclear fuel pellet is then reduced in a reductive gas atmosphere so as to have the desired O/M ratio in the state that the rod-like shaped structure is inserted.
摘要翻译：一种烧结环形核燃料颗粒的制造方法，包括成型核燃料粉末或颗粒，易裂变元素（M）的氧化物，以制造环形核燃料生坯。棒形结构被插入到环形核燃料生坯中并在轻微的氧化气体气氛中烧结，使得易裂变元素的氧化物具有高于所需O / M比的平衡O / M比（氧/裂变元素）的最终烧结环形核燃料颗粒，同时保持立方相。然后将烧结的环形核燃料颗粒在还原性气体气氛中还原，以便在棒状结构被插入的状态下具有所需的O / M比。

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