公开(公告)号：US20080130820A1

公开(公告)日：2008-06-05

申请号：US11852528

申请日：2007-09-10

申请人： Masaru UKAI ,  Kosaku Tsumita ,  Ryoma Kato ,  Kenjiro Fukamichi ,  Yuji Yamada ,  Makoto Sato ,  Tadaaki Shimazu ,  Tomoharu Tanabe ,  Hirotoshi Matsumura ,  Keiji Matsunaga ,  Ken Okuda

发明人： Masaru UKAI ,  Kosaku Tsumita ,  Ryoma Kato ,  Kenjiro Fukamichi ,  Yuji Yamada ,  Makoto Sato ,  Tadaaki Shimazu ,  Tomoharu Tanabe ,  Hirotoshi Matsumura ,  Keiji Matsunaga ,  Ken Okuda

IPC分类号： G21C15/243

CPC分类号： G21C5/06 ,  G21C3/3206 ,  Y02E30/40

摘要： A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.

摘要翻译： 一种用于将冷却剂引入构造成装入轻水核反应堆的燃料组件中的燃料入口机构，包括：过滤器，其在所述燃料组件的上游侧捕获包含在所述冷却剂中的异物，所述过滤器具有多个 通孔用于使冷却剂通过，并且通孔具有入口部分，出口部分和至少一个弯曲部分，直到入口部分不能通过直线从出口部分看到的程度。

公开(公告)号：US20110103535A1

公开(公告)日：2011-05-05

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： G21C7/28 ,  G21C7/08

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：US20050276367A1

公开(公告)日：2005-12-15

申请号：US11207777

申请日：2005-08-22

申请人： Masaru Ukai ,  Kosaku Tsumita ,  Ryoma Kato ,  Kenjiro Fukamichi ,  Yuji Yamada ,  Makoto Sato ,  Tadaaki Shimazu ,  Tomoharu Tanabe ,  Hirotoshi Matsumura ,  Keiji Matsunaga ,  Ken Okuda

发明人： Masaru Ukai ,  Kosaku Tsumita ,  Ryoma Kato ,  Kenjiro Fukamichi ,  Yuji Yamada ,  Makoto Sato ,  Tadaaki Shimazu ,  Tomoharu Tanabe ,  Hirotoshi Matsumura ,  Keiji Matsunaga ,  Ken Okuda

IPC分类号： G21C3/32 ,  G21C5/06 ,  G21C19/42

CPC分类号： G21C5/06 ,  G21C3/3206 ,  Y02E30/40

摘要： A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.

摘要翻译： 一种用于将冷却剂引入构造成装入轻水核反应堆的燃料组件中的燃料入口机构，包括：过滤器，其在所述燃料组件的上游侧捕获包含在所述冷却剂中的异物，所述过滤器具有多个 通孔用于使冷却剂通过，并且通孔具有入口部分，出口部分和至少一个弯曲部分，直到入口部分不能通过直线从出口部分看到的程度。

公开(公告)号：US07864913B2

公开(公告)日：2011-01-04

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 controlling a reflector lifting speed and a water flow rate. The fast reactor has a neutron reflector provided outside the reactor core and which is moved in a vertical direction for adjusting neutron leakage to control the reactivity of the reactor core. The neutron reflector is moved in an upward direction with the change in reactivity caused by fuel burn-up. At least a part of a lower region of the neutron reflector may be a region having a high neutron reflection ability as compared to that of the other region. The high reflection region is located at the bottom of the neutron reflector and extends from between 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。 快堆具有设置在反应堆堆芯外部的中子反射器，并且在垂直方向上移动以调节中子泄漏以控制反应堆堆芯的反应性。 随着燃料燃烧引起的反应性变化，中子反射器向上移动。 与其他区域相比，中子反射体的下部区域的至少一部分可以是具有高中子反射能力的区域。 高反射区域位于中子反射器的底部，并从中子反射器的高度的四分之一到一半之间延伸。

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。