-
1.发明授权Initial charge core of fast breeder and method of charging the core with fuel 失效快速种鸡的初始充电核心和燃料对核心充电的方法
公开(公告)号：US4587078A
公开(公告)日：1986-05-06
申请号：US401747
申请日：1982-07-26
摘要： An initial charge core of a fast breeder and a method of renewing fuel in the initial charge core. The initial charge core comprises a driver core region containing a fissile material, an external blanket region containing a fertile material and surrounding the driver core region, and an internal blanket region disposed within the driver core region and containing a fertile material. The axial thickness of the internal blanket region is greater at its central portion that at the peripheral portion thereof. The internal blanket region is enriched with the fissile material. The degree of enrichment in the internal blanket region is greater than that in the driver core region.
摘要翻译： 快速种植者的初始充电核心和在初始充电核心中更新燃料的方法。 初始充电芯包括含有易裂变材料的驱动器芯区域，包含可育材料并围绕驱动器芯区域的外部覆盖区域，以及设置在驱动器芯区域内并包含可育材料的内部覆盖区域。 内侧毯区域的轴向厚度在其周边部分的中央部分较大。 内部覆盖区域富含易裂变材料。 内部覆盖区域的富集程度大于驱动器核心区域的浓度。
-
公开(公告)号：US4926450A
公开(公告)日：1990-05-15
申请号：US171452
申请日：1988-03-21
申请人： Yasuhiro Masuhara , Soamu Yokomizo , Kotaro Inoue , Sadao Uchikawa , Motoo Aoyama , Junichi Yamashita , Yuichiro Yoshimoto , Tetsuo Yasuda , Hiromasa Hirakawa
发明人： Yasuhiro Masuhara , Soamu Yokomizo , Kotaro Inoue , Sadao Uchikawa , Motoo Aoyama , Junichi Yamashita , Yuichiro Yoshimoto , Tetsuo Yasuda , Hiromasa Hirakawa
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly including a plurality of fuel rods and water rods. The fuel rods are arranged with a predetermined pitch and two water rods are disposed adjacent to each other in a diagonal direction of the fuel assembly. More particularly, the fuel rods are arranged in a lattice of nine rows by nine columns and the two water rods are disposed inside a region corresponding to a space sufficient for disposing seven fuel rods at the center of the fuel assembly. Each of the water rods has an outer diameter greater than the pitch of the fuel rods.
-
3.发明申请CT apparatus, CT imaging method and method of providing service using the same 失效CT装置，CT成像方法及使用其的服务方法公开(公告)号：US20050243965A1
公开(公告)日：2005-11-03
申请号：US11152371
申请日：2005-06-15
申请人： Tarou Takagi , Hiroshi Kamimura , Sadao Uchikawa
发明人： Tarou Takagi , Hiroshi Kamimura , Sadao Uchikawa
CPC分类号： G06K9/3216 , G01N23/046 , G01N2223/419 , G06K2009/3225 , G06K2209/05 , G06T7/73 , G06T2207/30004
摘要： A CT imaging method and apparatus in which an object is to be imaged by the CT apparatus using an X-ray or radiation, and a tomographic image of the object is obtained, wherein the object includes a reference portion. The processing the tomographic image is processed and a relative positional relation between a reference coordinate system of the object and a coordinate system of the CT apparatus is obtained. The object is imaged by the CT apparatus, and based on the relative positional relation, a tomographic image of a desired position of the object is obtained.
摘要翻译： 一种CT成像方法和装置，其中通过CT装置使用X射线或辐射对物体进行成像，并获得该物体的断层图像，其中该对象包括参考部分。 处理断层图像，并且获得对象的参考坐标系和CT装置的坐标系之间的相对位置关系。 该物体由CT装置成像，并且基于相对位置关系，获得物体的期望位置的断层图像。
-
公开(公告)号：US4876062A
公开(公告)日：1989-10-24
申请号：US172418
申请日：1988-03-24
申请人： Motoo Aoyama , Yasunori Bessho , Sadao Uchikawa , Renzo Takeda , Yoshihiko Ishii
发明人： Motoo Aoyama , Yasunori Bessho , Sadao Uchikawa , Renzo Takeda , Yoshihiko Ishii
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly of the present invention comprises a plurality of fuel rods which are held by an upper tie plate and lower tie plate at the ends thereof and a moderating rod which is arranged between the fuel rods and held by the lower tie plate at its lower end. The fuel rods are arranged in a lattice form having 9 rows and 9 columns, and the moderating rod contains a passage for a coolant and has a cruciate cross-sectional form. The ratio A.sub.M /A.sub.C of the area A.sub.M of a moderator region in the moderating rod in the cross-sectional plane in which the moderator is present to the area A.sub.C of the coolant passages in said fuel assembly is within the range of 0.07 to 0.11, and the area A.sub.M is 75% or more of the total area of the fuel lattice units in which none of the fuel rods is arranged, but the moderating rod is arranged.
-
公开(公告)号：US4851181A
公开(公告)日：1989-07-25
申请号：US123542
申请日：1987-11-20
申请人： Renzo Takeda , Kanji Kato , Tadahiro Ohnishi , Sadao Uchikawa , Hiromi Maruyama , Motoo Aoyama , Kikuo Umegaki , Yasunori Bessho , Motomasa Fuse , Michiro Yokomi
发明人： Renzo Takeda , Kanji Kato , Tadahiro Ohnishi , Sadao Uchikawa , Hiromi Maruyama , Motoo Aoyama , Kikuo Umegaki , Yasunori Bessho , Motomasa Fuse , Michiro Yokomi
摘要： In a light water moderation type nuclear reactor with the once-through method, the reactor core is divided into a central area and a peripheral area by a partition member, a first fuel assembly is arranged in the central area (high conversion area) and a second fuel assembly is arranged in the peripheral area. The ratio (r.sub.H/U) of the number of hydrogen atoms to that of uranium atoms in the central area is smaller than that of the ratio in the peripheral area and the second fuel assembly in the peripheral area is formed of fuel rods of the first fuel assembly having been previously burned in the central area and moved into the peripheral area. The plutonium production increases and uranium consumption is reduced during the first half of the lifetime of the fuel rods in the high conversion area with the take-up burn up increasing during the second half of the lifetime of the fuel rods in the burner area.
摘要翻译： 在具有一次通过方法的轻水调节型核反应堆中，反应堆堆芯通过分隔构件分成中心区域和周边区域，第一燃料组件布置在中心区域（高转化区域）和 第二燃料组件布置在周边区域中。 中心区域的氢原子数与铀原子数的比值（rH / U）小于外围区域的比例，并且周边区域中的第二燃料组件的比率（rH / U）由第一 燃料组件先前已经在中心区域燃烧并移动到周边区域。 在高转化率区域的燃料棒的寿命的前半期，钚的生产增加，铀的消耗减少，在燃烧器区域的燃料棒的寿命的后半期，吸收燃烧增加。
-
公开(公告)号：US4378329A
公开(公告)日：1983-03-29
申请号：US158363
申请日：1980-06-11
CPC分类号： G21C7/04 , G21C5/00 , G21Y2002/201 , G21Y2004/10 , G21Y2004/30 , Y02E30/39
摘要： A core construction for a nuclear reactor having a multiplicity of fuel cells forming a core in which each fuel cell includes four fuel assemblies arranged in adjacent relationship and one control rod insertable into a position surrounded by the four fuel assemblies. The fuel cells includes first fuel cells each having a relatively high cell mean infinite neutron multiplication factor and including one fuel assembly containing a burnable poison, and second fuel cells each having a relatively low cell mean infinite neutron multiplication factor and including no fuel assembly containing a burnable poison. The first fuel cells are arranged both in a central zone of the core disposed within about one-half the core radius from the center of the core and in a circumferential zone of the core outside the central zone. The second fuel cells are arranged only in the central zone and no second fuel cells are arranged in the circumferential zone. Only the second fuel cells provide control cells in which the control rods are operative to adjust core reactivity changes and power distribution changes during normal power operation of the reactor.
摘要翻译： 一种用于核反应堆的核心结构，其具有形成核心的多个燃料电池，其中每个燃料电池包括相邻关系排列的四个燃料组件，以及可插入由四个燃料组件包围的位置的一个控制棒。 燃料电池包括每个具有相对高的电池平均无限中子倍增因子的第一燃料电池，并且包括一个包含可燃毒物的燃料组件，以及每个具有相对低的电池平均无限中子倍增因子的第二燃料电池，并且不包括燃料组件， 可燃毒 第一燃料电池被布置在核心的中心区域中，该中心区域设置在离核心的中心大约一半半径的芯半径处，并且在芯部的圆周区域中央区域外部。 第二燃料电池仅布置在中心区域中，并且在周向区域中不设置第二燃料电池。 只有第二燃料电池提供控制电池，其中控制棒可操作以在电抗器的正常电力操作期间调节铁心反应性变化和配电变化。
-
公开(公告)号：US4292128A
公开(公告)日：1981-09-29
申请号：US942558
申请日：1978-09-15
申请人： Renzo Takeda , Kunitoshi Kurihara , Sadao Uchikawa
发明人： Renzo Takeda , Kunitoshi Kurihara , Sadao Uchikawa
CPC分类号： G21C7/02 , G21Y2002/201 , G21Y2004/10 , G21Y2004/302 , G21Y2004/40 , Y02E30/39
摘要： A boiling water type nuclear reactor adapted to be operated at a void quality (weight ratio of vapor in the coolant) of coolant at the core outlet of 17% or higher. By adopting this level of void quality, a void quality exceeding 8.5% is available at least in the upper half region of the core which in turn provides a void fraction of 66% or higher. Consequently, it is possible to reduce the enrichment of the fuel, so as to allow a more efficient use of the fuel. At the same time, due to the reduced power generating rate, the range over which the flow rate of coolant is controlled is widened, so that it becomes possible to change the reactivity solely by controlling the flow rate of the coolant. It is therefore possible to operate the reactor over whole operation cycle with its control rods fully withdrawn.
摘要翻译： 一种沸水型核反应堆，适于在核心出口处的冷却剂的空隙质量（冷却剂中的蒸汽的重量比）为17％或更高的温度下操作。 通过采用该水平的空隙质量，至少在芯的上半部区域可以获得超过8.5％的空隙质量，这又提供66％或更高的空隙率。 因此，可以减少燃料的浓缩，从而更有效地利用燃料。 同时，由于发电率降低，控制冷却剂流量的范围扩大，从而可以通过控制冷却剂的流量来改变反应性。 因此，可以在整个操作周期内操作反应器，其控制棒完全拉出。
-
8.发明授权CT apparatus, CT imaging method and method of providing service using the same 失效CT装置，CT成像方法及使用该方法提供服务公开(公告)号：US07031424B2
公开(公告)日：2006-04-18
申请号：US11152371
申请日：2005-06-15
申请人： Tarou Takagi , Hiroshi Kamimura , Sadao Uchikawa
发明人： Tarou Takagi , Hiroshi Kamimura , Sadao Uchikawa
IPC分类号： G01N23/00
CPC分类号： G06K9/3216 , G01N23/046 , G01N2223/419 , G06K2009/3225 , G06K2209/05 , G06T7/73 , G06T2207/30004
摘要： A CT imaging method and apparatus in which an object is to be imaged by the CT apparatus using an X-ray or radiation, and a tomographic image of the object is obtained, wherein the object includes a reference portion. The processing the tomographic image is processed and a relative positional relation between a reference coordinate system of the object and a coordinate system of the CT apparatus is obtained. The object is imaged by the CT apparatus, and based on the relative positional relation, a tomographic image of a desired position of the object is obtained.
摘要翻译： 一种CT成像方法和装置，其中通过CT装置使用X射线或辐射对物体进行成像，并获得该物体的断层图像，其中该物体包括一参考部分。 处理断层图像，并且获得对象的参考坐标系和CT装置的坐标系之间的相对位置关系。 该物体由CT装置成像，并且基于相对位置关系，获得物体的期望位置的断层图像。
-
9.发明授权CT apparatus, CT imaging method and method of providing service using the same 失效CT装置，CT成像方法及使用该方法提供服务公开(公告)号：US06909768B2
公开(公告)日：2005-06-21
申请号：US10622648
申请日：2003-07-21
申请人： Tarou Takagi , Hiroshi Kamimura , Sadao Uchikawa
发明人： Tarou Takagi , Hiroshi Kamimura , Sadao Uchikawa
CPC分类号： G06K9/3216 , G01N23/046 , G01N2223/419 , G06K2009/3225 , G06K2209/05 , G06T7/73 , G06T2207/30004
摘要： A CT imaging method determines geometric features (information representing geometries) of contact surfaces between markers and an object from tomographic images obtained by imaging the object attached with the markers on its reference surfaces using a CT apparatus, determines from the geometric features a positional relation between a reference coordinate system of the object and a coordinate system of the CT apparatus, and, based on the positional relation, produces tomographic images (bit-map data) of a desired portion of the object.
摘要翻译： CT成像方法使用CT装置确定通过使用CT装置对附着有标记的物体成像的断层图像来确定标记和物体之间的接触表面的几何特征（表示几何形状的信息），从几何特征确定位置关系 物体的参考坐标系和CT装置的坐标系，并且基于位置关系，产生物体的期望部分的断层图像（位图数据）。
-
公开(公告)号：US5167911A
公开(公告)日：1992-12-01
申请号：US669376
申请日：1991-03-14
申请人： Koji Fujimura , Yasunori Bessho , Yoshihiko Ishii , Sadao Uchikawa , Yuichiro Yoshimoto , Junjiro Nakajima
发明人： Koji Fujimura , Yasunori Bessho , Yoshihiko Ishii , Sadao Uchikawa , Yuichiro Yoshimoto , Junjiro Nakajima
摘要： A fuel assembly comprises a plurality of fuel rods which contain nuclear fuel material inside, a lower tie plate which holds the lower end of the fuel rods and has a path inside to lead coolant between the fuel rods, and a channel box which encloses a bundle of the fuel rods. An orifice, in which a plurality of round rods are arranged to cross the coolant flow path, is installed in a through hole at a side wall of the lower tie plate by connecting to the side wall. Orifice coefficient of the orifice becomes large at small flow rate of coolant which supplied to the fuel assembly, and becomes small at large flow rate of coolant. By using the fuel assembly described above, void fraction in a gap region between fuel assemblies can be altered during beginning and end of an operation cycle of the nuclear reactor.
摘要翻译： 燃料组件包括在其内部容纳核燃料材料的多个燃料棒，保持燃料棒的下端的下连接板，并且具有内部的路径，以在燃料棒之间引导冷却剂，以及包围束的通道箱 的燃料棒。 其中多个圆棒布置成穿过冷却剂流动路径的孔口通过连接到侧壁而安装在下连接板的侧壁的通孔中。 在供给到燃料组件的冷却剂的小流量下，孔口的孔数变大，在冷却剂的大流量下变小。 通过使用上述燃料组件，可以在核反应堆的操作循环的开始和结束期间改变燃料组件之间的间隙区域中的空隙率。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.021 秒)
