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21. 发明公开

KR1020090021477A 온-오프 작동형 누름스프링을 사용한 핵연료집합체용상단고정체 有权
标题翻译：在核燃料组件中具有开关保持弹簧的顶部喷嘴组件
公开(公告)号：KR1020090021477A
公开(公告)日：2009-03-04
申请号：KR1020070086023
申请日：2007-08-27
申请人： 한전원자력연료 주식회사
发明人： 박준규 , 최준형 , 김규태 , 서정민 , 이신호 , 박남규 , 엄경보 , 김진선 , 이진석 , 이성기
IPC分类号： G21C3/30
CPC分类号： G21C3/331 , G21C3/3315 , Y02E30/40
摘要： A top nozzle for nuclear fuel assembly having hold down spring for preventing lift of nuclear fuel assembly is provided to stably fix a position of a nuclear fuel assembly by providing a suitable pressing force according to length change of the nuclear fuel assembly. A pressing plate(20) has a central hole for the pressing plate and a plurality of outer holes for the pressing plate. A flow plate(10) has a central hole for the flow plate and an outer hole for the flow plate. An outer guide pillar(40) penetrates the outer hole for pressing plate and the outer hole for the flow plate, and is connected to a guide tube of the nuclear fuel assembly. A holding part(41) for the pressing plate is formed on a top of the outer guide pillar. A diameter of the holding part for the pressing plate is larger than a diameter of the outer hole for the pressing plate. A hold down spring(30) is installed in an outer circumference of the outer guide pillar, and provides elasticity between the pressing plate and the flow plate. A center pressing plate(52) has a through hole for the center pressing plate. A center guide pillar(50) penetrates the center pressing plate, and is coupled in a center hole for the flow plate. A center hold down spring(53) is installed in an outer circumference of the center guide pillar.
摘要翻译：提供了具有用于防止核燃料组件升降的压紧弹簧的核燃料组件的顶部喷嘴，以通过根据核燃料组件的长度变化提供合适的按压力来稳定地固定核燃料组件的位置。压板（20）具有用于压板的中心孔和用于压板的多个外孔。流动板（10）具有用于流动板的中心孔和用于流动板的外部孔。外导柱（40）穿过用于压板的外孔和流板的外孔，并连接到核燃料组件的导管。用于压板的保持部件（41）形成在外导柱的顶部上。用于压板的保持部的直径大于用于压板的外孔的直径。按压弹簧（30）安装在外导柱的外周，并且在压板和流动板之间提供弹性。中心压板（52）具有用于中心压板的通孔。中心导柱（50）穿过中心压板，并联接在流板的中心孔中。中心压紧弹簧（53）安装在中心导柱的外周。

22. 发明公开

KR1020090021474A 유로구멍에 삽입되는 돌출형 이물질여과용 지지격자 有权
标题翻译：间隙网格带有插入到流动孔中进行滤波的带
公开(公告)号：KR1020090021474A
公开(公告)日：2009-03-04
申请号：KR1020070086018
申请日：2007-08-27
申请人： 한전원자력연료 주식회사
发明人： 박준규 , 김형구 , 김규태 , 서정민 , 이신호 , 박남규 , 엄경보 , 김진선 , 이진석 , 이성기 , 최준형
IPC分类号： G21C3/33 , G21C3/332
CPC分类号： Y02E30/40 , G21C3/34 , G21C2003/3432
摘要： A spacer grid capable of filtering foreign material flowing through flow hole is provided to minimize pressure drop due to cooling water by increasing size of a flow hole. A spacer grid comprises a strip(2), a dimple(24), and an arch(23). A slot is formed in the strip. The strip partitions a plurality of grid cells. A cut-out part is formed from a bottom center of a grid surface of the grid cell toward a top. Two pair of dimples are formed on a top of the grid surface. The dimple supports a lower end cap(14) of a nuclear fuel rod. The arch is protruded in a right and a left of a cut-out surface of the grid surface, and partitions a space of a flow hole(12). A diameter of a foreign material passing the flow hole is minimized.
摘要翻译：提供能够过滤流过流孔的异物的间隔栅格，以通过增加流动孔的尺寸来最小化由于冷却水引起的压降。间隔网格包括条（2），凹坑（24）和拱（23）。在条带上形成槽。条带分隔多个网格单元。切割部分从网格单元的网格表面的底部中心朝向顶部形成。在栅格表面的顶部形成两对凹坑。凹坑支撑核燃料棒的下端盖（14）。拱形物在栅格表面的切出表面的右侧和左侧突出，并且分隔有一个流动孔（12）的空间。通过流通孔的异物的直径最小化。

23. 发明公开

KR1020080030978A 원거리에서 핵연료집합체 상단의 해체 및 조립의 편의성을증대시킨 상단고정체구조 有权
标题翻译：（在远程距离改进释放和联轴器配置的顶部喷嘴组件）
公开(公告)号：KR1020080030978A
公开(公告)日：2008-04-07
申请号：KR1020080024071
申请日：2008-03-14
申请人： 한전원자력연료 주식회사
发明人： 박남규 , 김규태 , 서정민 , 이신호 , 엄경보 , 박준규 , 김진선 , 신규철 , 이성기 , 김일규 , 최기성 , 전경락
IPC分类号： G21C3/30
CPC分类号： Y02E30/40 , G21C3/30 , G21C19/36 , G21D1/003 , Y02W30/881
摘要： A top nozzle assembly with improved release and coupling configuration in remote distance is provided to be easily assembled/disassembled in remote distance by processing a screw guide in an upper head and a body of an inner insert tube. A top nozzle assembly with improved release and coupling configuration in remote distance includes an outer guiding column, an upper head of inner insert tube, an inner insert tube body(451), a wedge(200), and a guiding tube. The outer guiding column is a hollow cylinder with screw thread at the lower external circumference. The upper head of inner insert tube has a hump by forming the external diameter larger, and has screw thread at the lower inner circumference. The inner insert tube body has screw thread at the upper outer circumference, and has screw thread at the lower outer circumference. The wedge is a hollow cylinder, has at lest one hump extended by the predetermined length towards the central axis at the lower end, and is welded at the inner insert tube body in case that the upper fixer and the guiding tube are coupled. The guiding tube has hump receiving units which correspond to the shape, number, and position of the pumps to receive the pumps formed at the wedge at the upper end.
摘要翻译：提供了远距离改进的释放和联接构造的顶部喷嘴组件，以便通过加工上部头部和内部插入管的主体中的螺钉导向器在远距离方便地组装/拆卸。具有改进的远离距离的释放和联接构造的顶部喷嘴组件包括外部引导柱，内部插入管的上部头部，内部插入管体（451），楔形件（200）和引导管。外引导柱是在下外圆周处具有螺纹的中空圆柱体。内插管的上部头部通过形成较大的外径而具有隆起，并且在下内圆周处具有螺纹。内插管体在上外周具有螺纹，在下外周具有螺纹。楔形件是中空圆柱体，至少有一个突起在下端延伸预定长度朝向中心轴线，并且在连接上定位器和引导管的情况下被焊接在内插管体上。引导管具有对应于泵的形状，数量和位置的驼峰接收单元，以接收形成在上端的楔形件处的泵。

24. 发明授权

KR100314578B1 핵연료집합체내로의 이물질 유입을 방지하는 이물질 유입 방지장치 失效
标题翻译：用于保护核燃料组件下端配件中的碎屑的插入式过滤器
公开(公告)号：KR100314578B1
公开(公告)日：2001-11-15
申请号：KR1019990010878
申请日：1999-03-30
申请人： 한전원자력연료 주식회사
发明人： 김규태 , 김용환 , 장영기 , 이신호 , 서정민 , 임현태 , 전상윤 , 이규석 , 김일규 , 류계열 , 최준형 , 최병순
IPC分类号： G21C3/322 , G21C19/30 , G21C3/30
CPC分类号： Y02E30/38
摘要： 본발명은핵연료집합체내로의이물질유입을방지하는이물질유입방지장치에관한것으로, 그목적은핵연료집합체의하부에위치한하단고정체의냉각수흐름구멍을통해냉각수와같이핵연료집합체내로유입되는이물질의유입을방지하여핵연료봉의손상을방지하고, 전력생산력을향상시키며, 방사능누출등의대형사고를미연에방지함과동시에, 경제적부담감을저하시키는핵연료집합체내로의이물질유입을방지하는이물질유입방지장치를제공하는것이다. 본발명은안내관과지지격자에의해다수개의핵연료봉이일정간격을유지하며상단고정체와하단고정체사이에설치되는핵연료집합체에있어서; 상기하단고정체에형성된냉각수흐름구멍내에, 동일한크기인다수개의날개를박판의동일한높이에등간격으로돌출·형성되고, 상기날개에의해여러개의흐름구멍이형성된이물질유입방지장치를삽입·설치하여, 하단고정체흐름구멍의크기및 형태에따라다르나현재상용중인핵연료집합체내로 5㎜이상의이물질유입을방지하는핵연료집합체내로의이물질유입을방지하는이물질유입방지장치를제공함에있다.

25. 发明公开

KR1020000061663A 핵연료집합체로부터 해체조립이 용이한 일체형 상단고정체 有权
标题翻译：从核燃料组件执行拆卸和组装的上端固定体
公开(公告)号：KR1020000061663A
公开(公告)日：2000-10-25
申请号：KR1019990010877
申请日：1999-03-30
申请人： 한전원자력연료 주식회사
发明人： 김규태 , 김용환 , 장영기 , 이신호 , 서정민 , 임현태 , 전상윤 , 이규석 , 김일규 , 류계열 , 최준형 , 최병순
IPC分类号： G21C3/30
CPC分类号： Y02E30/40
摘要： PURPOSE: An upper end fixing body for performing disassembly and assembly from a nuclear fuel assembly is provided to disassemble or assemble easily an upper end fixing body for supporting an upper end of the nuclear fuel assembly in order to withdraw or exchange a nuclear fuel rod from a nuclear fuel assembly. CONSTITUTION: An upper end fixing body for performing disassembly and assembly from a nuclear fuel assembly comprises a support lattice body, an upper and a lower end fixing body, a guide tube(203), a structure material and a nuclear fuel rod. The upper end fixing body is formed with one body. The upper end fixing body and the guide tube are combined simultaneously with a combination device. The upper end fixing body is easily assembled or disassembled from the nuclear fuel assembly.
摘要翻译：目的：提供用于从核燃料组件进行拆卸和组装的上端固定体，以容易地拆卸或组装用于支撑核燃料组件的上端的上端固定体，以便将核燃料棒从核燃料组件。构成：用于从核燃料组件进行拆卸和组装的上端固定体包括支撑格架体，上下固定体，导管（203），结构材料和核燃料棒。上端固定体形成一体。上端固定体和引导管与组合装置同时组合。上端固定体容易地与核燃料组件组装或拆卸。

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