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公开(公告)号：US5112571A
公开(公告)日：1992-05-12
申请号：US510192
申请日：1990-04-17
申请人： Akihito Orii , Osamu Yokomizo , Yasuhiro Masuhara , Koji Nishida , Shigeto Murata , Shin-ichi Kashiwai , Kotaro Inoue , Yuichiro Yoshimoto
发明人： Akihito Orii , Osamu Yokomizo , Yasuhiro Masuhara , Koji Nishida , Shigeto Murata , Shin-ichi Kashiwai , Kotaro Inoue , Yuichiro Yoshimoto
摘要： In a fuel assembly having fuel rods inserted into regularly arranged cells of a fuel spacer which keeps the fuel rods correctly spaced from one another and has spacer elements disposed in a plurality of stages in the longitudinal direction of the fuel rods, the fuel spacer comprises vanes formed on the cells in such a manner that each vane is bent from a cut formed in a part of the side wall of the cell. The vanes obliquely project into the corresponding spaces between adjacent fuel rods and allow a coolant flowing through the spaces and forming two-phase flows to generate swirling flows toward the fuel rods. The fuel spacer may alternatively comprise either thin-walled cylinders having built-in vanes or spiral vanes, which are fixed to the spacer that has not been subjected to any direct machining. Also disclosed is a fuel assembly provided with any of the above-described fuel spacers. The arrangement of the present invention enables, while assuring a sufficient strength for maintaining fuel rods in their correct position, the transfer of heat from the fuel rods to the coolant to be promoted so as to raise the allowable power level of the fuel assembly, and enables the void ratio to be lowered so as to increase the reactivity.
摘要翻译： 在具有插入燃料间隔件的规则布置的单元中的燃料棒的燃料组件中，燃料棒将燃料棒彼此正确地间隔开并具有沿着燃料棒的纵向设置成多级的间隔元件，燃料间隔件包括叶片 形成在电池上，使得每个叶片从形成在电池的侧壁的一部分中的切口弯曲。 叶片倾斜地突出到相邻燃料棒之间的相应空间中，并允许冷却剂流过空间并形成两相流以产生朝向燃料棒的旋流。 燃料间隔器可以可选地包括具有内置叶片或螺旋叶片的薄壁圆柱体，其固定到未经受任何直接加工的间隔件。 还公开了一种具有任何上述燃料间隔件的燃料组件。 本发明的结构在确保足够的强度以保持燃料棒处于其正确位置的同时，能够将热量从燃料棒传递到冷却剂以提高燃料组件的允许功率水平， 使空隙率降低，从而提高反应性。
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公开(公告)号：US4777007A
公开(公告)日：1988-10-11
申请号：US339894
申请日：1982-01-18
摘要： A fast breeder incorporating a core having a driver core region containing an enriched fissile material, an external blanket region surrounding the core region and containing a fertile material and an internal blanket region disposed within the driver core region and containing a fertile material. The internal blanket region has a thickness or axial height greater at the central portion thereof than at the peripheral portion thereof. The peripheral end of the internal blanket region opposes to the inner peripheral surface of the external radial blanket region with a portion of the core region interposed therebetween.
摘要翻译： 一种加入核心的快速育种者，其具有含有富集的裂变材料的驱动核心区域，围绕核心区域的外部覆盖区域，并且包含设置在驱动器核心区域内并含有可育材料的可育材料和内部覆盖区域。 内部橡皮布区域在其中心部分处的厚度或轴向高度大于其周边部分。 内部覆盖区域的外周端与外部径向覆盖区域的内周表面相对，其中芯区域的一部分插入其间。
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公开(公告)号：US4654193A
公开(公告)日：1987-03-31
申请号：US603824
申请日：1984-04-25
申请人： Ken Amano , Kotaro Inoue
发明人： Ken Amano , Kotaro Inoue
摘要： This invention relates to a fuel assembly for fast reactors and aims to reduce stresses induced in fuel pins by interaction between a wrapper tube and a bundle of fuel elements each of which consists of the fuel pin and a wire spacer wound around the fuel pin. The fuel elements consists of two kinds of fuel elements, one of them consists of conventional fuel pins and wire spacers and the other fuel pins of smaller diameter than the conventional fuel pins and wire spacers of larger diameter than the conventional wire spacers whereby the fuel assembly is provided with larger space therein.
摘要翻译： 本发明涉及一种用于快堆的燃料组件，其目的是通过包裹管和一束燃料元件之间的相互作用来减少燃料销引起的应力，每个燃料元件由燃料销和缠绕在燃料销的线间隔件构成。 燃料元件由两种燃料元件组成，其中之一由传统的燃料销和电线隔离件组成，另一个燃料销包括比常规电线间隔件更大直径的常规燃料销和电线隔板的直径小的燃料销，由此燃料组件 在其中具有较大的空间。
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4.发明授权
公开(公告)号：US4877574A
公开(公告)日：1989-10-31
申请号：US162987
申请日：1988-03-02
申请人： Hiroaki Suzuki , Yoshiyuki Kataoka , Michio Murase , Kotaro Inoue , Isao Sumida , Shozo Yamanari , Masaki Matsumoto , Satoshi Miura , Koji Hashimoto
发明人： Hiroaki Suzuki , Yoshiyuki Kataoka , Michio Murase , Kotaro Inoue , Isao Sumida , Shozo Yamanari , Masaki Matsumoto , Satoshi Miura , Koji Hashimoto
IPC分类号： G21C7/32
摘要： A natural circulation reactor includes a reactor pressure vessel, a cylindrical shroud disposed within the reactor pressure vessel to surround a reactor core and to extend to a position above the reactor core, and a coolant descending passage defined between the reactor pressure vessel and the shroud for allowing the coolant discharged from the top of the reactor core to be again supplied to the bottom of the reactor core. In such a natural circulation reactor, a liquid level of coolant in the coolant descending passage is adjusted on the basis of a reactor power request signal at a position below a liquid level of coolant in the shroud, and thus reactor power is controlled so that it may reach a predetermined reactor power by adjusting the liquid level of coolant in the coolant descending passage.
摘要翻译： 自然循环反应器包括反应堆压力容器，设置在反应堆压力容器内以围绕反应堆堆芯并延伸到反应堆堆芯上方位置的圆柱形护罩，以及在反应堆压力容器和护罩之间限定的冷却剂下降通道， 允许将从反应堆堆芯顶部排出的冷却剂再次供应到反应堆堆芯的底部。 在这样的自然循环反应器中，根据在护罩中的冷却剂液面以下的位置的反应堆功率要求信号来调节冷却剂下降通道中的冷却剂液面，从而控制反应堆功率 可以通过调节冷却剂下降通道中的冷却剂的液位来达到预定的反应堆功率。
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公开(公告)号：US06278757B1
公开(公告)日：2001-08-21
申请号：US07974834
申请日：1992-11-16
申请人： Osamu Yokomizo , Yuichiro Yoshimoto , Yoshiyuki Kataoka , Shinichi Kashiwai , Yasuhiro Masuhara , Akio Tomiyama , Akihito Orii , Kotaro Inoue , Takaaki Mochida , Tatsuo Hayashi
发明人： Osamu Yokomizo , Yuichiro Yoshimoto , Yoshiyuki Kataoka , Shinichi Kashiwai , Yasuhiro Masuhara , Akio Tomiyama , Akihito Orii , Kotaro Inoue , Takaaki Mochida , Tatsuo Hayashi
IPC分类号： C21C726
CPC分类号： G21C3/322 , G21C3/328 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： A resistance member (e.g., fuel holding portion of the lower tie plate) is provided at the lower end of the fuel assembly. Provision is made of a coolant ascending path in which said water rods have coolant inlet ports that are open in a region lower than the resistance member to upwardly guide the coolant, and a coolant descending path which has a coolant delivery port that is open in a region higher than the resistance member to downwardly guide the coolant. The coolant ascending path and the coolant descending path are communicated with each other at their upper end portions.
摘要翻译： 电阻构件（例如，下连接板的燃料保持部）设置在燃料组件的下端。 设置有冷却剂上升路径，其中所述水杆具有在低于阻力构件的区域中开口的冷却剂入口端口，以向上引导冷却剂;以及冷却剂下降路径，其具有在 区域高于电阻构件以向下引导冷却剂。 冷却剂上升路径和冷却剂下降路径在其上端部彼此连通。
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公开(公告)号：US4938662A
公开(公告)日：1990-07-03
申请号：US415486
申请日：1989-10-03
申请人： Shigehiro Shimoyashiki , Kotaro Inoue , Yojiro Hayashi , Yasuo Tachi , Ryuhei Kawabe , Yoshihiko Sato
发明人： Shigehiro Shimoyashiki , Kotaro Inoue , Yojiro Hayashi , Yasuo Tachi , Ryuhei Kawabe , Yoshihiko Sato
CPC分类号： F04D29/628 , F04D7/065 , Y10S415/913
摘要： Of the components making up the pump, one part including the bearing is removably assembled into the other part so that the bearing is received in the other part. This structure allows easy removal of the first part of the pump components from the second part for disassembly and for maintenance and inspection of the pump. The pump can also be reassembled with ease by inserting the first part into the other part.
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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.
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8.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。
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公开(公告)号：US07215729B1
公开(公告)日：2007-05-08
申请号：US08470424
申请日：1995-06-06
申请人： Osamu Yokomizo , Yuichiro Yoshimoto , Yoshiyuki Kataoka , Shinichi Kashiwai , Yasuhiro Masuhara , Akio Tomiyama , Akihito Orii , Kotaro Inoue , Takaaki Mochida , Tatsuo Hayashi
发明人： Osamu Yokomizo , Yuichiro Yoshimoto , Yoshiyuki Kataoka , Shinichi Kashiwai , Yasuhiro Masuhara , Akio Tomiyama , Akihito Orii , Kotaro Inoue , Takaaki Mochida , Tatsuo Hayashi
CPC分类号： G21C3/322 , G21Y2002/201 , G21Y2002/30 , G21Y2004/302 , G21Y2004/40 , Y02E30/38
摘要： A resistance member (e.g., fuel holding portion of the lower tie plate) is provided at the lower end of the fuel assembly. Provision is made of a coolant ascending path in which said water rods have coolant inlet ports that are open in a region lower than the resistance member to upwardly guide the coolant, and a coolant descending path which has a coolant delivery port that is open in a region higher than the resistance member to downwardly guide the coolant. The coolant ascending path and the coolant descending path are communicated with each other at their upper end portions.
摘要翻译： 电阻构件（例如，下连接板的燃料保持部）设置在燃料组件的下端。 设置有冷却剂上升路径，其中所述水杆具有在低于阻力构件的区域中开口的冷却剂入口端口，以向上引导冷却剂;以及冷却剂下降路径，其具有在 区域高于电阻构件以向下引导冷却剂。 冷却剂上升路径和冷却剂下降路径在其上端部彼此连通。
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公开(公告)号：US4562034A
公开(公告)日：1985-12-31
申请号：US506867
申请日：1983-06-22
申请人： Kikuo Umegaki , Kotaro Inoue
发明人： Kikuo Umegaki , Kotaro Inoue
摘要： A fast breeder has a driver core region enriched with a fissile material and a blanket core region containing mainly a fertile material. The driver core region includes an inner core region and an outer core region surrounding the inner core region. The volume of the inner core region is selected to range between 30 and 70% of the volume of the driver core region. The enhancement of the fissile material in the inner core region ranges between 30 and 80% of the fissile material in the outer core region.
摘要翻译： 一个快速繁殖者有一个富含易裂变材料的驱动核心区域和一个主要含有肥沃材料的覆盖核心区域。 驱动器芯区域包括内芯区域和围绕内芯区域的外芯区域。 内芯区域的体积被选择为驱动器芯区域的体积的30至70％的范围。 内核区域内的裂变材料的增强范围在外芯区域中裂变材料的30％至80％之间。
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