公开(公告)号：US20060210010A1

公开(公告)日：2006-09-21

申请号：US11377178

申请日：2006-03-17

申请人： Yohei Nishiguchi ,  Tsugio Yokoyama ,  Hisato Mitsumiya ,  Yasushi Tsuboi

发明人： Yohei Nishiguchi ,  Tsugio Yokoyama ,  Hisato Mitsumiya ,  Yasushi Tsuboi

IPC分类号： G21C7/06

CPC分类号： G21C1/322 ,  G21C1/02 ,  G21C1/32 ,  G21C3/02 ,  G21C5/00 ,  G21C7/04 ,  G21C7/103 ,  Y02E30/34 ,  Y02E30/35 ,  Y02E30/39

摘要： In a nuclear reactor in which a primary coolant is contained, the primary coolant moves upwardly from the core by an operation thereof. An annular steam generator is arranged in an upper side of the core into which the upwardly moving primary coolant flows and transfers heat in the primary coolant into water therein to generate a steam. A passage structure defines a coolant passage for the primary coolant to an outside of the core. The heat-transferred primary coolant in the annular steam generator flows downwardly in the coolant passage so as to flow into the core, thereby moving upwardly. A reactor vessel is arranged to surround the coolant passage so as to contain the core, the annular steam generator and the passage means therein.

公开(公告)号：US08126105B2

公开(公告)日：2012-02-28

申请号：US12949854

申请日：2010-11-19

申请人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

发明人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

IPC分类号： G21C7/06

CPC分类号： G21C7/28 ,  G21C11/06 ,  G21Y2002/301 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/34 ,  Y02E30/35 ,  Y02E30/39

摘要： A fast reactor having a reflector control system is provided which decreases the change in reactivity of the reactor core with time without performing control of a reflector lifting speed and that of a water flow rate. The above fast reactor has a liquid metal coolant, a reactor core immersed therein, and a neutron reflector which is provided outside the reactor core and which is moved in a vertical direction for adjusting leakage of neutrons therefrom for controlling the reactivity of the reactor core. The neutron reflector described above is gradually moved in an upward direction with the change in reactivity caused by fuel burn-up, and at least a part of a lower region of the neutron reflector is a high reflection region having a high neutron reflection ability as compared to that of the other region. The high reflection region is located from the bottom to a place between one fourth and one half of the height of the neutron reflector from the bottom end thereof.

摘要翻译： 提供了一种具有反射器控制系统的快速反应器，其减少反应堆堆芯的反应性随时间的变化，而不执行反射器提升速度和水流速度的控制。 上述快速反应器具有液态金属冷却剂，沉积在其中的反应堆芯，以及设置在反应堆芯外部并沿垂直方向移动的中子反射器，用于调节中子的泄漏以控制反应堆芯的反应性。 上述中子反射器随着燃料燃烧引起的反应性的变化而沿向上的方向逐渐移动，并且中子反射器的下部区域的至少一部分是具有高中子反射能力的高反射区域， 到另一个地区。 高反射区域从底部到中子反射器的底部的高度的四分之一到一半之间的位置。

公开(公告)号：US07773716B2

公开(公告)日：2010-08-10

申请号：US12166392

申请日：2008-07-02

申请人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

发明人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

IPC分类号： G21C7/06

CPC分类号： G21C7/28 ,  G21C11/06 ,  G21Y2002/301 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/34 ,  Y02E30/35 ,  Y02E30/39

摘要： A fast reactor having a reflector control system is provided which decreases the change in reactivity of the reactor core with time without controlling reflector lifting speed and a water flow rate. The reactor has a liquid metal coolant, a reactor core immersed therein, and a neutron reflector provided outside the core and is moved in a vertical direction for adjusting leakage of neutrons therefrom for controlling the reactivity of the core. The reflector described above is gradually moved in an upward direction with the change in reactivity caused by fuel burn-up, and at least a part of a lower region of the reflector is a high reflection region having a high neutron reflection ability as compared to that of the other region. The high reflection region is located between the bottom and one fourth and one half of the height of the neutron reflector.

摘要翻译： 提供具有反射器控制系统的快速反应器，其减少反应堆堆芯的反应性随时间的变化，而不控制反射器提升速度和水流速。 反应器具有液态金属冷却剂，沉积在其中的反应堆芯，以及设置在芯外部并在垂直方向上移动的中子反射器，用于调节其中子的泄漏以控制芯的反应性。 上述反射器随着燃料燃烧引起的反应性的变化而沿向上的方向逐渐移动，反射器的下部区域的至少一部分是具有高中子反射能力的高反射区域 的其他地区。 高反射区域位于中子反射器的底部和高度的四分之一和一半之间。

公开(公告)号：US20080273650A1

公开(公告)日：2008-11-06

申请号：US12166392

申请日：2008-07-02

申请人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

发明人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

IPC分类号： G21C7/32

CPC分类号： G21C7/28 ,  G21C11/06 ,  G21Y2002/301 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/34 ,  Y02E30/35 ,  Y02E30/39

摘要： A fast reactor having a reflector control system is provided which decreases the change in reactivity of the reactor core with time without performing control of a reflector lifting speed and that of a water flow rate. The above fast reactor has a liquid metal coolant, a reactor core immersed therein, and a neutron reflector which is provided outside the reactor core and which is moved in a vertical direction for adjusting leakage of neutrons therefrom for controlling the reactivity of the reactor core. The neutron reflector described above is gradually moved in an upward direction with the change in reactivity caused by fuel burn-up, and at least a part of a lower region of the neutron reflector is a high reflection region having a high neutron reflection ability as compared to that of the other region. The high reflection region is located from the bottom to a place between one fourth and one half of the height of the neutron reflector from the bottom end thereof.

摘要翻译： 提供了一种具有反射器控制系统的快速反应器，其减少反应堆堆芯的反应性随时间的变化，而不执行反射器提升速度和水流速度的控制。 上述快速反应器具有液态金属冷却剂，沉积在其中的反应堆芯，以及设置在反应堆芯外部并沿垂直方向移动的中子反射器，用于调节中子的泄漏以控制反应堆芯的反应性。 上述中子反射器随着燃料燃烧引起的反应性的变化而沿向上的方向逐渐移动，并且中子反射器的下部区域的至少一部分是具有高中子反射能力的高反射区域， 到另一个地区。 高反射区域从底部到中子反射器的底部的高度的四分之一到一半之间的位置。

公开(公告)号：US20050220251A1

公开(公告)日：2005-10-06

申请号：US11060625

申请日：2005-02-18

申请人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

发明人： Tsugio Yokoyama ,  Mitsuaki Yamaoka ,  Yasuyuki Moriki ,  Ryoma Kato ,  Yasushi Tsuboi ,  Atsuko Matsuda

IPC分类号： G21C7/06

CPC分类号： G21C7/28 ,  G21C11/06 ,  G21Y2002/301 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/34 ,  Y02E30/35 ,  Y02E30/39

摘要： A fast reactor having a reflector control system is provided which decreases the change in reactivity of the reactor core with time without performing control of a reflector lifting speed and that of a water flow rate. The above fast reactor has a liquid metal coolant, a reactor core immersed therein, and a neutron reflector which is provided outside the reactor core and which is moved in a vertical direction for adjusting leakage of neutrons therefrom for controlling the reactivity of the reactor core. The neutron reflector described above is gradually moved in an upward direction with the change in reactivity caused by fuel burn-up, and at least a part of a lower region of the neutron reflector is a high reflection region having a high neutron reflection ability as compared to that of the other region. The high reflection region is located from the bottom to a place between one fourth and one half of the height of the neutron reflector from the bottom end thereof.

摘要翻译： 提供了一种具有反射器控制系统的快速反应器，其减少反应堆堆芯的反应性随时间的变化，而不执行反射器提升速度和水流速度的控制。 上述快速反应器具有液态金属冷却剂，沉积在其中的反应堆芯，以及设置在反应堆芯外部并沿垂直方向移动的中子反射器，用于调节中子的泄漏以控制反应堆芯的反应性。 上述中子反射器随着燃料燃烧引起的反应性的变化而沿向上的方向逐渐移动，并且中子反射器的下部区域的至少一部分是具有高中子反射能力的高反射区域， 到另一个地区。 高反射区域从底部到中子反射器的底部的高度的四分之一到一半之间的位置。

公开(公告)号：US20090175403A1

公开(公告)日：2009-07-09

申请号：US11672782

申请日：2007-02-08

申请人： Toshiyuki Suzuki ,  Koji Matsumoto ,  Kenzo Koizumi ,  Yasushi Tsuboi

发明人： Toshiyuki Suzuki ,  Koji Matsumoto ,  Kenzo Koizumi ,  Yasushi Tsuboi

IPC分类号： G21C7/10 ,  G21C7/28 ,  G21C1/02

CPC分类号： G21C1/02 ,  G21C7/10 ,  G21C7/28 ,  Y02E30/34 ,  Y02E30/39

摘要： A fast reactor has a reactivity control assembly including a reactor shutdown rod of a backup reactor shutdown system and neutron absorbers to suppress the initial surplus reactivity, a reactor shutdown rod drive mechanism for releasing the reactor shutdown rod and units of neutron absorber drive mechanism capable of moving the respective neutron absorbers up and down. The reactor shutdown rod and the neutron absorbers are arranged in a wrapper tube. The reactor shutdown rod drive mechanism causes an inner extension tube to fall and release the reactor shutdown rod by means of a gripper section at the lowermost end of an outer extension tube by turning off the power supply to a holding magnet at the time of scram. Each of the units of neutron absorber drive mechanism has a dual tube type drive shaft including an outer extension shaft and an inner extension shaft. When grasping the neutron absorbers, the outer extension shaft is pulled up to allow both of the extension shafts to be inserted. After the outer extension tube gets to the handling head section of the neutron absorber, the outer extension shaft is pushed down to grasp the neutron absorber externally by means of the latch fingers of the gripper section thereof so that the neutron absorber can be moved up and down.

摘要翻译： 快速反应器具有反应性控制组件，其包括备用反应堆关闭系统的反应堆关闭棒和抑制初始剩余反应性的中子吸收器，用于释放反应堆关闭棒的反应堆关闭棒驱动机构和能够 将各自的中子吸收体上下移动。 反应器关闭棒和中子吸收器布置在包装管中。 反应堆关闭杆驱动机构通过在外部延伸管的最下端通过在卡拉姆时关闭到保持磁体的电力而使内部延伸管落下并且通过夹持部分释放反应堆关闭杆。 中子吸收器驱动机构的每个单元具有包括外延伸轴和内延伸轴的双管式驱动轴。 当抓住中子吸收器时，将外延伸轴向上拉以允许两个延伸轴插入。 在外延伸管到达中子吸收器的处理头部分之后，外延伸轴被向下推动，通过其夹持部分的闩锁指将外部的中子吸收器抓住，使得中子吸收器可以向上移动，并且 下。

公开(公告)号：US08873697B2

公开(公告)日：2014-10-28

申请号：US13600488

申请日：2012-08-31

申请人： Hideki Horie ,  Yasushi Tsuboi ,  Fumie Sebe ,  Nobuhisa Takezawa

发明人： Hideki Horie ,  Yasushi Tsuboi ,  Fumie Sebe ,  Nobuhisa Takezawa

IPC分类号： G21C15/18 ,  G21C13/02 ,  G21C15/12 ,  G21C1/03

CPC分类号： G21C15/18 ,  G21C1/03 ,  G21C13/02 ,  G21C15/12 ,  Y02E30/34 ,  Y02E30/35

摘要： A liquid metal cooled nuclear reactor includes a reactor vessel, a containment, an air flow path, and an injection unit. The vessel has a reactor core and a coolant for the reactor core. The containment surrounds an outside of the vessel. The air flow path removes heat by flowing air around the containment. The injection unit injects filler in a gap between the vessel and the containment.

摘要翻译： 液态金属冷却核反应堆包括反应器容器，容纳物，空气流路和注射单元。 容器具有用于反应堆芯的反应堆芯和冷却剂。 容器围绕容器的外部。 气流路径通过使围绕容器的空气流动来消除热量。 注射单元将填料注入容器和容器之间的间隙中。

公开(公告)号：US07873137B2

公开(公告)日：2011-01-18

申请号：US11672782

申请日：2007-02-08

申请人： Toshiyuki Suzuki ,  Koji Matsumoto ,  Kenzo Koizumi ,  Yasushi Tsuboi

发明人： Toshiyuki Suzuki ,  Koji Matsumoto ,  Kenzo Koizumi ,  Yasushi Tsuboi

IPC分类号： G21C7/00 ,  G21C19/00

CPC分类号： G21C1/02 ,  G21C7/10 ,  G21C7/28 ,  Y02E30/34 ,  Y02E30/39

摘要： A fast reactor including a reactivity control assembly including a reactor shutdown rod and neutron absorbers, a reactor shutdown rod drive mechanism, and units of neutron absorber drive mechanism. The reactor shutdown rod drive mechanism causes an inner extension tube to fall and release the reactor shutdown rod by a gripper section by turning off the power supply to a holding magnet at the time of scram. When grasping the neutron absorbers, an outer extension shaft is pulled up to allow both of the extension shafts to be inserted. After the outer extension tube gets to a handling head section of the neutron absorber, the outer extension shaft is pushed down to grasp the neutron absorber externally by latch fingers of the gripper section so that the neutron absorber can be moved up and down.

摘要翻译： 一种快速反应器，包括反应性控制组件，其包括反应堆关闭棒和中子吸收剂，反应堆关闭棒驱动机构和中子吸收器驱动机构单元。 反应堆关闭杆驱动机构通过在卡车时断开对保持磁体的电力使得内部延伸管通过夹持部分下落并释放反应堆关闭杆。 当抓住中子吸收器时，拉出外延伸轴以允许两个延伸轴插入。 在外延伸管到达中子吸收器的处理头部分之后，外延伸轴被向下推动以通过夹持器部分的闩锁指向外部抓住中子吸收器，使得中子吸收器能够上下移动。

公开(公告)号：US20130114778A1

公开(公告)日：2013-05-09

申请号：US13600488

申请日：2012-08-31

申请人： Hideki Horie ,  Yasushi Tsuboi ,  Fumie Sebe ,  Nobuhisa Takezawa

发明人： Hideki Horie ,  Yasushi Tsuboi ,  Fumie Sebe ,  Nobuhisa Takezawa

IPC分类号： G21C15/18

CPC分类号： G21C15/18 ,  G21C1/03 ,  G21C13/02 ,  G21C15/12 ,  Y02E30/34 ,  Y02E30/35

摘要： A liquid metal cooled nuclear reactor includes a reactor vessel, a containment, an air flow path, and an injection unit. The vessel has a reactor core and a coolant for the reactor core. The containment surrounds an outside of the vessel. The air flow path removes heat by flowing air around the containment. The injection unit injects filler in a gap between the vessel and the containment.

摘要翻译： 液态金属冷却核反应堆包括反应器容器，容纳物，空气流路和注射单元。 容器具有用于反应堆芯的反应堆芯和冷却剂。 容器围绕容器的外部。 气流路径通过使围绕容器的空气流动来消除热量。 注射单元将填料注入容器和容器之间的间隙中。

公开(公告)号：US08295425B2

公开(公告)日：2012-10-23

申请号：US12121344

申请日：2008-05-15

申请人： Toshiro Sakai ,  Takanari Inatomi ,  Hiroshi Nakamura ,  Kenjiro Fukamichi ,  Toshiyuki Suzuki ,  Katsushi Hasegawa ,  Yasushi Tsuboi ,  Makoto Kuramochi

发明人： Toshiro Sakai ,  Takanari Inatomi ,  Hiroshi Nakamura ,  Kenjiro Fukamichi ,  Toshiyuki Suzuki ,  Katsushi Hasegawa ,  Yasushi Tsuboi ,  Makoto Kuramochi

IPC分类号： G21C7/06

CPC分类号： G21C1/02 ,  G21C7/10 ,  G21C7/28 ,  G21C11/06 ,  Y02E30/34 ,  Y02E30/39

摘要： A fast reactor having a reactivity control reflector has a reactor vessel in which a coolant is accommodated, a reactor core which is installed in the reactor vessel and dipped with the coolant, and a reflector installed outside of the reactor core so as to be movable in a vertical direction for controlling the reactivity of the reactor core. The reflector of the fast reactor has a lower neutron reflecting portion having a neutron reflection capability higher than that of the coolant and an upper cavity portion located above the neutron reflecting portion and having a neutron reflection capability lower than that of the coolant. The cavity portion is composed of a plurality of cylindrical hermetically-sealed vessels.

摘要翻译： 具有反应性控制反应器的快速反应器具有容纳冷却剂的反应器容器，安装在反应容器中并与冷却剂一起浸渍的反应堆芯，以及安装在反应堆堆芯外侧的反射体， 用于控制反应堆芯的反应性的垂直方向。 快堆的反射器具有中子反射能力高于冷却剂的中子反射部分和位于中子反射部分上方的中空反射能力低于冷却剂的中子反射能力的中空反射部分。 空腔部分由多个圆柱形密封容器组成。