公开(公告)号：US20110299645A1

公开(公告)日：2011-12-08

申请号：US13152884

申请日：2011-06-03

申请人： Dae-Ho Kim ,  Je-Geon Bang ,  Yang-Hyun Koo ,  Ik-Sung Lim ,  Sun-Ki Kim ,  Yong-Sik Yang ,  Kun-Woo Song

发明人： Dae-Ho Kim ,  Je-Geon Bang ,  Yang-Hyun Koo ,  Ik-Sung Lim ,  Sun-Ki Kim ,  Yong-Sik Yang ,  Kun-Woo Song

IPC分类号： G21G1/06 ,  G21C3/32 ,  G21C3/36 ,  G21C3/02

CPC分类号： G21G1/02 ,  G21C3/32 ,  G21C3/36 ,  G21C3/64 ,  Y02E30/38

摘要： Disclosed is a breeding nuclear fuel mixture including metallic thorium useable in a nuclear power plant, prepared by mixing uranium dioxide (UO2) or plutonium dioxide (PuO2) having ceramic properties with metallic thorium (Th), in order to enable thorium breeding by neutrons released during nuclear fission of U or Pu and conversion of the bred thorium into a novel nuclear fissile material, i.e., U-233, thereby ensuring continuous nuclear fission. The foregoing nuclear fuel mixture may be burned at a reactor core of a nuclear power plant through thorium breeding over a long period of time. Therefore, when the inventive breeding nuclear fuel mixture is employed in a nuclear power plant, utilization of the nuclear power plant may be increased while maximizing conservation of limited uranium resources.

摘要翻译： 公开了通过将具有陶瓷性质的二氧化铀（UO 2）或二氧化钚（PuO 2）与金属钍（Th）混合制备的核动力装置中可用的金属钍的育种核燃料混合物，以便能够释放中子进行钍培养 在U或Pu的核裂变过程中，将养殖钍转化为新的核裂变材料，即U-233，从而确保连续的核裂变。 上述核燃料混合物可以在核电厂的反应堆堆芯上长时间通过钍繁殖而燃烧。 因此，当在核电站中使用本发明的育种核燃料混合物时，可以增加核电站的利用，同时最大限度地保护有限的铀资源。

公开(公告)号：US06236702B1

公开(公告)日：2001-05-22

申请号：US09121930

申请日：1998-07-24

申请人： Tae-Hyun Chun ,  Dong-Seok Oh ,  Wang-Kee In ,  Kee-Nam Song ,  Heung-Seok Kang ,  Kyung-Ho Yoon ,  Dae-Ho Kim ,  Je-Geon Bang ,  Youn-Ho Jung

发明人： Tae-Hyun Chun ,  Dong-Seok Oh ,  Wang-Kee In ,  Kee-Nam Song ,  Heung-Seok Kang ,  Kyung-Ho Yoon ,  Dae-Ho Kim ,  Je-Geon Bang ,  Youn-Ho Jung

IPC分类号： G21C334

CPC分类号： G21C3/322 ,  G21C2003/3432 ,  Y02E30/38

摘要： A fuel assembly spacer grid including swirl deflectors respectively arranged at interconnections between interconnecting longitudinally and laterally-extending straps on upper ends of the interconnecting straps adapted to support fuel elements of a nuclear fuel assembly. Each of the swirl deflectors has four vanes bent to have an air vane shape. By virtue of this configuration, an improvement in the efficiency of the spacer grid cooling the fuel elements. The spacer grid also includes springs each configured to generate not only a main spring force caused by a displacement of the spring occurring when the spring comes into contact with a fuel element placed in a reactor core, but also an additional spring force caused by hydraulic pressure applied to the spring. Each spring, which is in a fixed state at one end thereof, has a free bent portion at the other end. By virtue of such a spring configuration, it is possible to compensate for a reduction in the initial spring force of the spring resulting from a change in the property of the spring material. The spring has a curved contact portion configured in such a manner that it is in conformal surface contact with a circumferential surface of the fuel element, thereby enhancing vibration suppressing and abrasion resistance forces.

摘要翻译： 一种燃料组件间隔栅格，其包括分别布置在相互连接的相互连接的相互连接的相互连接的带状连接带的纵向和横向延伸的带上的涡流偏转器，其适于支撑核燃料组件的燃料元件。 每个涡旋导流器具有弯曲成具有气翼形状的四个叶片。 由于这种结构，间歇栅格的效率的提高使燃料元件冷却。 间隔网格还包括弹簧，每个弹簧被配置成不仅产生由弹簧与放置在反应堆芯中的燃料元件接触而发生的弹簧位移引起的主弹簧力，而且还产生由液压引起的附加弹簧力 适用于春天。 在其一端处于固定状态的每个弹簧在另一端具有自由弯曲部分。 由于这种弹簧构造，可以补偿弹簧材料的特性变化导致的弹簧的初始弹簧力的减小。 该弹簧具有弯曲的接触部，其配置成与燃料元件的周面呈保形面接触，从而增强振动抑制和耐磨损力。

公开(公告)号：US6130927A

公开(公告)日：2000-10-10

申请号：US207184

申请日：1998-12-08

申请人： Heung Seok Kang ,  Kee Nam Song ,  Kyung Ho Yoon ,  Youn Ho Jung ,  Tae Hyun Chun ,  Dong Seok Oh ,  Wang Kee In ,  Je Geon Bang

发明人： Heung Seok Kang ,  Kee Nam Song ,  Kyung Ho Yoon ,  Youn Ho Jung ,  Tae Hyun Chun ,  Dong Seok Oh ,  Wang Kee In ,  Je Geon Bang

IPC分类号： G21C3/34 ,  G21C3/322 ,  G21C3/352

CPC分类号： G21C3/322 ,  G21C3/352 ,  G21Y2002/101 ,  G21Y2002/201 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/38

摘要： A grid with coolant deflecting channels for used in nuclear fuel assemblies is disclosed. In the grid, two sets of intersecting grid strips are arranged in sets at right angles to each other prior to being encircled by four perimeter strips, thus forming a plurality of four-walled cells individually placing and supporting an elongated fuel rod therein. Each of the grid strips is made up of two narrow sheets which are deformed at a plurality of regularly spaced portions to provide nozzle-type coolant deflecting channels. The channels individually have an upright Y-shaped or reversed Y-shaped configuration capable of so deflecting coolant as to mix low temperature coolant with high temperature coolant. The channels thus form a uniform temperature distribution within a fuel assembly. The channels are so inclined with respect to the axes of the fuel rods as to form wide and linear positioning springs at middle portions thereof. The middle portions of the channels thus individually have a dual function of a deflecting channel for coolant and a positioning spring for the fuel rods.

摘要翻译： 公开了一种具有用于核燃料组件的冷却剂偏转通道的电网。 在网格中，两组相交的格栅条在被四个周边条带包围之前彼此成直角地排成一组，从而形成多个四壁细胞，其中单独地将细长的燃料棒放置在其中。 每个格栅条由两个窄片组成，它们以多个规则间隔的部分变形，以提供喷嘴型冷却剂偏转通道。 通道各自具有直立的Y形或反向的Y形构造，其能够使冷却剂偏转以将低温冷却剂与高温冷却剂混合。 因此，通道在燃料组件内形成均匀的温度分布。 通道相对于燃料棒的轴线倾斜，以在其中间部分形成宽且线性的定位弹簧。 因此，通道的中部分别具有用于冷却剂的偏转通道和用于燃料棒的定位弹簧的双重功能。