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公开(公告)号：US20110158371A1
公开(公告)日：2011-06-30
申请号：US13044909
申请日：2011-03-10
申请人： Takashi SATO , Kazunori Hashimoto , Hirohide Oikawa , Yasunobu Fujiki , Makoto Akinaga , Hisaki Sato
发明人： Takashi SATO , Kazunori Hashimoto , Hirohide Oikawa , Yasunobu Fujiki , Makoto Akinaga , Hisaki Sato
摘要： According to an embodiment, a pressurized water reactor plant has a primary system which includes: a reactor vessel for housing a reactor core which is cooled by a primary coolant, a single steam generator, a hot leg pipe for connecting the reactor vessel and the steam generator, cold leg pipes, at least two primary coolant pumps, and a pressurizer for pressurizing the primary coolant pressure boundary in which the primary coolant flows. The plant also has: a passive cooling and depressurization system which is a primary depressurization means for equalizing the primary system pressure to the secondary system pressure at the time of a tube rupture accident of the steam generator, and a reactor containment vessel containing the primary system and cooling the primary system by air cooling. Thus, a compact pressurized water rector with high economic efficiency, safety, and reliability can be provided.
摘要翻译： 根据实施例，压水反应堆设备具有主要系统，其包括：用于容纳由主冷却剂冷却的反应堆堆芯的反应堆容器，单个蒸汽发生器，用于连接反应堆容器的热腿管和蒸汽 发电机，冷腿管，至少两个一次冷却剂泵，以及用于对初级冷却剂流动的主冷却剂压力边界加压的加压器。 该设备还具有：被动冷却和减压系统，其是在蒸汽发生器的管道破裂事故发生时使初级系统压力与二次系统压力相等的主要减压装置，以及包含主系统的反应堆安全壳 并通过空气冷却冷却主系统。 因此，可以提供具有高经济性，安全性和可靠性的紧凑型压水机。
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公开(公告)号：US08817941B2
公开(公告)日：2014-08-26
申请号：US13044909
申请日：2011-03-10
申请人： Takashi Sato , Kazunori Hashimoto , Hirohide Oikawa , Yasunobu Fujiki , Makoto Akinaga , Hisaki Sato
发明人： Takashi Sato , Kazunori Hashimoto , Hirohide Oikawa , Yasunobu Fujiki , Makoto Akinaga , Hisaki Sato
摘要： According to an embodiment, a pressurized water reactor plant has a primary system which includes: a reactor vessel for housing a reactor core which is cooled by a primary coolant, a single steam generator, a hot leg pipe for connecting the reactor vessel and the steam generator, cold leg pipes, at least two primary coolant pumps, and a pressurizer for pressurizing the primary coolant pressure boundary in which the primary coolant flows. The plant also has: a passive cooling and depressurization system which is a primary depressurization means for equalizing the primary system pressure to the secondary system pressure at the time of a tube rupture accident of the steam generator, and a reactor containment vessel containing the primary system and cooling the primary system by air cooling. Thus, a compact pressurized water rector with high economic efficiency, safety, and reliability can be provided.
摘要翻译： 根据实施例，压水反应堆设备具有主要系统，其包括：用于容纳由主冷却剂冷却的反应堆堆芯的反应堆容器，单个蒸汽发生器，用于连接反应堆容器的热腿管和蒸汽 发电机，冷腿管，至少两个一次冷却剂泵，以及用于对初级冷却剂流动的主冷却剂压力边界加压的加压器。 该设备还具有：被动冷却和减压系统，其是在蒸汽发生器的管道破裂事故发生时使初级系统压力与二次系统压力相等的主要减压装置，以及包含主系统的反应堆安全壳 并通过空气冷却冷却主系统。 因此，可以提供具有高经济性，安全性和可靠性的紧凑型压水机。
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3.发明授权公开(公告)号：US08559583B1
公开(公告)日：2013-10-15
申请号：US12394576
申请日：2009-02-27
申请人： Takashi Sato , Masanori Ino , Yasunobu Fujiki , Kazunori Hashimoto , Junichiro Otonari , Hisaki Sato , Naoko Matsunaga
发明人： Takashi Sato , Masanori Ino , Yasunobu Fujiki , Kazunori Hashimoto , Junichiro Otonari , Hisaki Sato , Naoko Matsunaga
IPC分类号： G21C9/00
CPC分类号： G21C9/004 , G21C1/086 , G21C15/18 , G21Y2002/304 , G21Y2004/30 , Y02E30/32
摘要： A passive cooling and depressurization system for a pressurized water nuclear plant is provided with a cooling water pool, a steam supply piping, a heat exchanger, a steam supply valve, a coolant return pipe and an outlet valve. The steam supply piping extends from the gas phase of the pressurizer. The heat exchanger exchanges heat between water stored in the cooling water pool and steam flowing through the steam supply piping. The steam supply valve is equipped on the steam supply piping. The coolant return pipe extends from the heat exchanger to a liquid phase of the reactor pressure boundary. The outlet valve is equipped on the coolant return pipe.
摘要翻译： 用于加压水核电厂的被动冷却和减压系统设置有冷却水池，蒸汽供应管道，热交换器，蒸汽供应阀，冷却剂回流管和出口阀。 蒸汽供应管道从加压器的气相延伸。 热交换器在存储在冷却水池中的水和通过蒸汽供应管道的蒸汽之间交换热量。 蒸汽供应阀配备在蒸汽供应管道上。 冷却剂回流管从热交换器延伸到反应堆压力边界的液相。 排气阀装在冷却液回流管上。
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4.发明申请公开(公告)号：US20130259183A1
公开(公告)日：2013-10-03
申请号：US12394576
申请日：2009-02-27
申请人： Takashi Sato , Masanori Ino , Yasunobu Fujiki , Kazunori Hashimoto , Junichiro Otonari , Hisaki Sato , Naoko Matsunaga
发明人： Takashi Sato , Masanori Ino , Yasunobu Fujiki , Kazunori Hashimoto , Junichiro Otonari , Hisaki Sato , Naoko Matsunaga
IPC分类号： G21C9/004
CPC分类号： G21C9/004 , G21C1/086 , G21C15/18 , G21Y2002/304 , G21Y2004/30 , Y02E30/32
摘要： A passive cooling and depressurization system for a pressurized water nuclear plant is provided with a cooling water pool, a steam supply piping, a heat exchanger, a steam supply valve, a coolant return pipe and an outlet valve. The steam supply piping extends from the gas phase of the pressurizer. The heat exchanger exchanges heat between water stored in the cooling water pool and steam flowing through the steam supply piping. The steam supply valve is equipped on the steam supply piping. The coolant return pipe extends from the heat exchanger to a liquid phase of the reactor pressure boundary. The outlet valve is equipped on the coolant return pipe.
摘要翻译： 用于加压水核电厂的被动冷却和减压系统设置有冷却水池，蒸汽供应管道，热交换器，蒸汽供应阀，冷却剂回流管和出口阀。 蒸汽供应管道从加压器的气相延伸。 热交换器在存储在冷却水池中的水和通过蒸汽供应管道的蒸汽之间交换热量。 蒸汽供应阀配备在蒸汽供应管道上。 冷却剂回流管从热交换器延伸到反应堆压力边界的液相。 排气阀装在冷却液回流管上。
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公开(公告)号：US09793015B2
公开(公告)日：2017-10-17
申请号：US12338559
申请日：2008-12-18
CPC分类号： G21C15/18 , G21C9/004 , G21C13/00 , G21Y2002/304 , G21Y2004/30 , Y02E30/32
摘要： A containment vessel for containing a reactor pressure vessel, a reactor core, and a steam generator of a pressurized water reactor includes a main body equipped with a polar crane, a diaphragm set above the polar crane that partitions the main body, before and after a loss-of-coolant accident (LOCA), into an upper vessel including a dome part having an open space and a lower vessel isolated from the upper vessel, a pressure suppression chamber including a suppression pool that stores water and a gas phase in communication with the open space, a LOCA vent pipe connecting the suppression pool to the lower vessel, and a vacuum breaker that equalizes pressure by allowing gas flow from the upper to the lower vessel when a pressure difference between the upper and lower vessels exceeds a preset value. The lower vessel contains all equipment and piping constituting a reactor pressure boundary.
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公开(公告)号：US20130272472A1
公开(公告)日：2013-10-17
申请号：US13647887
申请日：2012-10-09
申请人： Kazuyoshi AOKI , Mika Tahara , Ken Okuda , Yasunobu Fujiki , Hisaki Sato
发明人： Kazuyoshi AOKI , Mika Tahara , Ken Okuda , Yasunobu Fujiki , Hisaki Sato
IPC分类号： G21C9/016
摘要： According to an embodiment, a molten-core retention structure comprises the following inside a reactor vessel that contains a reactor core: a bottom support plate, in which vertically penetrating flow holes are formed, that is provided beneath the core and supports the core; a bottom support plate support that is affixed to the reactor vessel and supports the bottom support plate; a thermally insulating spacer; a reticulated heat path that is affixed to the bottom support plate support with the thermally insulating spacer interposed therebetween and contacts the bottom support plate; and vertical heat paths that extend downwards from the reticulated heat path. The reticulated heat path and the vertical heat paths have higher coefficients of thermal conductivity than the thermally insulating spacer.
摘要翻译： 根据一个实施方案，熔芯保持结构在反应器容器内部包含以下物质：反应堆芯：底部支撑板，其中形成有垂直穿透的流动孔，其设置在芯的下方并支撑芯; 底部支撑板支撑件，其固定到反应堆容器并支撑底部支撑板; 绝热垫片; 网状热路，其与隔热隔离物固定在底部支撑板支撑件上并与底部支撑板接触; 以及从网状热路向下延伸的垂直热路。 网状热路径和垂直热路径具有比隔热间隔物更高的导热系数。
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公开(公告)号：US20130343505A1
公开(公告)日：2013-12-26
申请号：US13993227
申请日：2011-12-13
申请人： Chikako Iwaki , Tatsumi Ikeda , Tetsuzo Yamamoto , Masanobu Watanabe , Satoru Abe , Ken Uchida , Hisaki Sato , Ken Okuda , Kiichi Ito
发明人： Chikako Iwaki , Tatsumi Ikeda , Tetsuzo Yamamoto , Masanobu Watanabe , Satoru Abe , Ken Uchida , Hisaki Sato , Ken Okuda , Kiichi Ito
IPC分类号： G21C15/02
摘要： The pressurized water reactor according an embodiment comprises: a cylindrical reactor pressure vessel (1) to which inlet nozzles are connected; fuel assemblies which are contained within the reactor pressure vessel (1); a cylindrical reactor core barrel (3) which surrounds the fuel assemblies and forms an annular downcomer (6) between the reactor core barrel (3) and the inner surface of the reactor pressure vessel (1); and radial supports. The radial supports are supports which are arranged below the downcomer (6) at intervals in the circumferential direction, each has vertical flow path formed therein, and position the reactor core barrel (3) and the reactor pressure vessel (1). The radial supports each has, for example, a flow path-equipped radial keys (21) and a key groove member (40).
摘要翻译： 根据一个实施方案的加压水反应器包括：连接入口喷嘴的圆柱形反应器压力容器（1）; 包含在反应堆压力容器（1）内的燃料组件; 围绕燃料组件并在反应堆芯筒（3）和反应堆压力容器（1）的内表面之间形成环形降液管（6）的圆柱形反应堆芯筒（3）; 和径向支撑。 径向支撑件是沿圆周方向间隔地设置在降液管（6）下方的支撑件，每个都具有形成在其中的垂直流动通道，并且将反应堆堆芯筒（3）和反应堆压力容器（1）定位。 径向支撑件各自具有例如具有流动路径的径向键（21）和键槽构件（40）。
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公开(公告)号：US09251919B2
公开(公告)日：2016-02-02
申请号：US13993227
申请日：2011-12-13
申请人： Chikako Iwaki , Tatsumi Ikeda , Tetsuzo Yamamoto , Masanobu Watanabe , Satoru Abe , Ken Uchida , Hisaki Sato , Ken Okuda , Kiichi Ito
发明人： Chikako Iwaki , Tatsumi Ikeda , Tetsuzo Yamamoto , Masanobu Watanabe , Satoru Abe , Ken Uchida , Hisaki Sato , Ken Okuda , Kiichi Ito
摘要： The pressurized water reactor according an embodiment comprises: a cylindrical reactor pressure vessel (1) to which inlet nozzles are connected; fuel assemblies which are contained within the reactor pressure vessel (1); a cylindrical reactor core barrel (3) which surrounds the fuel assemblies and forms an annular downcomer (6) between the reactor core barrel (3) and the inner surface of the reactor pressure vessel (1); and radial supports. The radial supports are supports which are arranged below the downcomer (6) at intervals in the circumferential direction, each has vertical flow path formed therein, and position the reactor core barrel (3) and the reactor pressure vessel (1). The radial supports each has, for example, a flow path-equipped radial keys (21) and a key groove member (40).
摘要翻译： 根据一个实施方案的加压水反应器包括：连接入口喷嘴的圆柱形反应器压力容器（1）; 包含在反应堆压力容器（1）内的燃料组件; 围绕燃料组件并在反应堆芯筒（3）和反应堆压力容器（1）的内表面之间形成环形降液管（6）的圆柱形反应堆芯筒（3）; 和径向支撑。 径向支撑件是沿圆周方向间隔地设置在降液管（6）下方的支撑件，每个都具有形成在其中的垂直流动通道，并且将反应堆堆芯筒（3）和反应堆压力容器（1）定位。 径向支撑件各自具有例如具有流动路径的径向键（21）和键槽构件（40）。
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公开(公告)号：US20130028366A1
公开(公告)日：2013-01-31
申请号：US13633196
申请日：2012-10-02
申请人： Hiroshi Ikeda , Chikako Iwaki , Hisaki Sato , Kazuyoshi Aoki
发明人： Hiroshi Ikeda , Chikako Iwaki , Hisaki Sato , Kazuyoshi Aoki
IPC分类号： G21C15/16
CPC分类号： B01D45/16 , B04C3/06 , F22B1/023 , F22B37/268 , F22B37/327 , G21C15/16 , Y02E30/40
摘要： According to an embodiment, a steam separator is provided with a barrel, a swirler, a pick-off ring, a steam collecting pipe and transverse pipes. A two-phase flow of steam and water ascends inside the barrel. The two-phase flow has a swirl force imparted by the swirler. Flow near the inner surface of the barrel is separated by the pick-off ring, etc. from flow near the center of the barrel and is guided so as to descend along the outer surface of the barrel. A major part of the flow near the center of the barrel is separated from the outside flow by the steam collecting pipe and guided to the outside of the barrel through the transverse pipes.
摘要翻译： 根据实施例，蒸汽分离器设置有桶，旋流器，拾取环，蒸汽收集管和横向管。 蒸汽和水的两相流在桶内上升。 两相流具有由旋流器施加的旋流力。 筒体内表面附近的流动通过来自桶的中心附近的流体由拾取环等分离，并且被引导以沿着桶的外表面下降。 在筒体中心附近的流动的主要部分通过蒸汽收集管与外部流体分离，并通过横向管道被引导到桶的外部。
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