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21. 发明专利

JP2013050372A Pressurized-water reactor 审中-公开
标题翻译：加压水反应器
公开(公告)号：JP2013050372A
公开(公告)日：2013-03-14
申请号：JP2011188175
申请日：2011-08-31
申请人： Toshiba Corp , 株式会社東芝
发明人： UCHIDA KEN , OKUDA TAKESHI , AOKI KAZUYOSHI , YAMAMOTO TETSUZO , IWAKI CHIKAKO , HAGIWARA TAKESHI
IPC分类号： G21C15/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To suppress the generation of a bistable event of flowing near an inlet nozzle of a pressurized-water reactor.SOLUTION: A pressurized-water reactor includes: a reactor vessel 11; a core barrel 12 forming a downcomer 13 between the inside surface of the reactor vessel 11 and the core barrel 12; a lower core supporting plate 15; a core 16 for storing a plurality of fuel assemblies; an upper plenum 17; and a coolant outlet nozzle 22 of the reactor vessel 11. A communicating portion 25 crosses the downcomer 13, and configures a flow path between the upper plenum 17 and the coolant outlet nozzle 22. A partitioning portion 51 is formed outside of the communicating portion 25 in the downcomer 13, and partitions a part of a space in the downcomer 13 in a circumferential direction so as to suppress the generation of bistable flowing of a coolant flowing in from a coolant inlet nozzle 21 in the downcomer 13.
摘要翻译：要解决的问题：为了抑制在加压水反应器的入口喷嘴附近流动的双稳态事件的产生。压力水反应堆包括：反应堆容器11; 芯筒12在反应器容器11的内表面和芯筒12之间形成降液管13; 下芯支撑板15; 用于存储多个燃料组件的芯16; 上层集气室17; 和反应器容器11的冷却剂出口喷嘴22.连通部分25与降液管13相交，并且构成上室17和冷却剂出口喷嘴22之间的流路。分隔部51形成在连通部25的外侧并且在下降管13中分隔一部分降液管13中的空间，以便抑制从降液管13中的冷却剂入口喷嘴21流入的冷却剂的双稳态流的产生。版权所有：（C）2013，JPO＆INPIT

22. 发明专利

JP2013029316A Steam generator 审中-公开
标题翻译：蒸汽发生器
公开(公告)号：JP2013029316A
公开(公告)日：2013-02-07
申请号：JP2011163490
申请日：2011-07-26
申请人： Toshiba Corp , 株式会社東芝
发明人： YAMAMOTO TETSUZO , IWAKI CHIKAKO , AOKI KAZUYOSHI , UCHIDA KEN , KATSUKI RYOJI , KONO YOSHIO
IPC分类号： G21D1/00 , F22B1/16
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a steam generator that can improve plant efficiency without increasing the power of a primary coolant pump.SOLUTION: A steam generator 1 according to an embodiment includes: a container 10 having a primary-side water chamber 11 and a secondary-side heated part 13; a partition plate 15 which partitions the primary-side water chamber 11 into an intake-side water chamber 16 and an outlet-side water chamber 17; an intake nozzle 18 which guides primary-side fluid to the primary-side water chamber 11; a heat transfer pipe group 12 which guides the primary-side fluid from the intake-side water chamber 16 to the outlet-side water chamber 17 through the secondary-side heated part 13, and exchanges heat at the secondary-side heated part 13; an outlet nozzle 19 which guides the primary-side fluid from the outlet-side water chamber 17 to a primary-side fluid pump 25; and a water collection pipe 21 which is connected to an intake side 19b of the outlet nozzle 19 in the outlet-side water chamber 17. The water collection pipe 21 is formed increasing in internal diameter from an outlet-side end 21a connected to the outlet nozzle 19 toward an intake-side end 21b.
摘要翻译：要解决的问题：提供一种蒸汽发生器，其可以在不增加主冷却剂泵的功率的情况下提高设备效率。解决方案：根据实施例的蒸汽发生器1包括：容器10，其具有初级侧水室11和次级侧加热部分13; 分隔板15，其将初级侧水室11分隔成进气侧水室16和出口侧水室17; 将初级侧流体引导到一次侧水室11的进气喷嘴18; 传热管组12，其通过次级侧加热部13将一次侧流体从进气侧水室16引导到出口侧水室17，并且在次级侧加热部13进行热交换; 出口喷嘴19，其将初级侧流体从出口侧水室17引导到初级侧流体泵25; 和在出口侧水室17中与出口喷嘴19的吸入侧19b连接的集水管21.收集管21形成为从连接到出口侧的出口侧端部21a的内径增大喷嘴19朝向进气侧端部21b。版权所有（C）2013，JPO＆INPIT

23. 发明专利

JP2012251977A Reactor internal structure and nuclear reactor 审中-公开
标题翻译：反应器内部结构和核反应堆
公开(公告)号：JP2012251977A
公开(公告)日：2012-12-20
申请号：JP2011127164
申请日：2011-06-07
申请人： Toshiba Corp , 株式会社東芝
发明人： IKEDA TATSUMI , YAMAMOTO TETSUZO , IWAKI CHIKAKO , SATO HISAKI , AOKI KAZUYOSHI , OKUDA TAKESHI , ITO KIICHI
IPC分类号： G21C15/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a reactor internal structure which makes flow distribution of a fuel assembly stable and uniform by preventing local flow reduction of a coolant.SOLUTION: The reactor internal structure includes: a reactor core barrel 3 provided between a nuclear reactor pressure vessel 1 installed with its axis in a perpendicular direction and a fuel assembly 2; a porous member 14 which is installed under the reactor core barrel 3 and has a plurality of inflow ports 14a formed therein to adjust the flow distribution to the fuel assembly 2 of a primary coolant 12 flowing in through an inlet nozzle 4 of the nuclear reactor pressure vessel 1; and a positioning member 15 for positioning the reactor core barrel 3 in its radial direction. The positioning member 15 is disposed on the downstream side of flow of the primary coolant 12 relative to the porous member 14.
摘要翻译：要解决的问题：提供一种反应器内部结构，其通过防止冷却剂的局部流动减少而使燃料组件的流量分布稳定和均匀。反应器内部结构包括：反应堆芯筒3，设置在其反向轴向垂直安装的核反应堆压力容器1和燃料组件2之间; 多孔构件14，其安装在反应堆堆芯筒3的下面并且具有形成在其中的多个流入口14a，以调节通过核反应堆压力的入口喷嘴4流入的一次冷却剂12的燃料组件2的流量分布船1 以及用于将反应堆芯筒3沿其径向定位的定位构件15。定位构件15相对于多孔构件14设置在主冷却剂12的流动的下游侧。版权所有：（C）2013，JPO＆INPIT

24. 发明专利

JP2012251697A Steam generator 审中-公开
标题翻译：蒸汽发生器
公开(公告)号：JP2012251697A
公开(公告)日：2012-12-20
申请号：JP2011123744
申请日：2011-06-01
申请人： Toshiba Corp , 株式会社東芝
发明人： KOZUKI RYOJI , IWAKI CHIKAKO , UCHIDA KEN , YAMAMOTO TETSUZO , AOKI KAZUYOSHI , KONO YOSHIO
IPC分类号： F28D7/16 , F22B1/16 , G21C15/14 , G21D1/00
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a steam generator improving the thermal efficiency of a nuclear reactor by decreasing the pressure loss of a primary fluid.SOLUTION: The steam generator 10 includes: an external tube 15 that inputs a secondary fluid from a water supply nozzle internally and outputs water vapor from a steam nozzle; a heat transfer tube 17 that causes the primary fluid 5 to flow inside the external tube 15 to make the secondary fluid water vapor by heat exchange; a supply nozzle 26 that supplies the primary fluid 5 to an inlet chamber 31 formed in the external tube 15 to communicate to an end of the heat transfer tube 17; and a guide passage 20 that guides the primary fluid 5 from a connection 24 of the supply nozzle 26 connected with the external tube 15 toward the direction of an end of the heat transfer tube 17.
摘要翻译：要解决的问题：提供一种通过降低初级流体的压力损失来提高核反应堆的热效率的蒸汽发生器。蒸汽发生器10包括：外部管15，其在内部从供水喷嘴输入二次流体，并从蒸汽喷嘴输出水蒸气; 传热管17，其使一次流体5在外管15内流动，通过热交换制造二次流体水蒸汽; 供给喷嘴26，其将主流体5供给到形成在外管15中的入口室31，以与传热管17的端部连通; 以及引导通道20，其将主流体5从与外管15连接的供给喷嘴26的连接部24朝向传热管17的端部的方向引导。（C）2013，JPO＆INPIT

25. 发明专利

JP2012242108A Internal pump closing device 有权
标题翻译：内泵关闭装置
公开(公告)号：JP2012242108A
公开(公告)日：2012-12-10
申请号：JP2011109283
申请日：2011-05-16
申请人： Toshiba Corp , 株式会社東芝
发明人： NAKAJIMA JUN , KATAYAMA KENJIRO , YAMAMOTO TETSUZO , TORIGOE HIROYUKI
IPC分类号： G21C15/243 , G21C19/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To prevent furnace water in a motor casing from flowing and diffusing to the outside, by certainly preventing a lower closing flange from being removed before water in the motor casing is discharged.SOLUTION: An internal pump closing device has a motor casing 1 of an internal pump; and a lower closing flange 2 having a fitting portion 26 fitted with a lower part of the motor casing 1. The internal pump closing device includes a recessed portion 22 provided on an outer peripheral surface of the fitting portion 26, and in which a holding member 23 capable of expanding/contracting is disposed; an annular seal member 24 provided on a fitting portion outer peripheral surface above the recessed portion 22; and a communicating path 21 for communicating an upper surface of the fitting portion 26 and the recessed portion 22. The holding member 23 is pressed outward by water pressure added through the communicating path 21, thereby holding the motor casing 1.
摘要翻译：要解决的问题：为了防止电动机壳体中的炉水流出并扩散到外部，通过肯定地防止在电动机壳体中的水被排放之前下封闭法兰被移除。解决方案：内部泵关闭装置具有内部泵的电动机壳体1; 以及下部闭合凸缘2，其具有装配有马达壳体1的下部的嵌合部分26.内部关闭装置包括设置在装配部26的外周面上的凹部22，其中保持部件处理能够扩大/收缩的23个; 设置在凹部22上方的嵌合部外周面上的环状的密封部件24; 以及用于连通装配部26和凹部22的上表面的连通路21.保持构件23通过通过连通路21添加的水压被向外挤压，从而保持电动机壳1。版权所有：（C）2013，JPO＆INPIT

26. 发明专利

JP2012149996A Pressurized-water reactor 审中-公开
标题翻译：加压水反应器
公开(公告)号：JP2012149996A
公开(公告)日：2012-08-09
申请号：JP2011008688
申请日：2011-01-19
申请人： Toshiba Corp , 株式会社東芝
发明人： UCHIDA KEN , OKUDA TAKESHI , AOKI KAZUYOSHI , IKEDA HIROSHI , IWAKI CHIKAKO , YAMAMOTO TETSUZO
IPC分类号： G21C15/02
CPC分类号： G21C15/02 , G21C1/086 , Y02E30/32
摘要： PROBLEM TO BE SOLVED: To reduce deflection of radial distribution of coolant supply to a fuel assembly in a pressurized-water reactor.SOLUTION: A pressurized-water reactor comprises: a reactor pressure vessel 11; a cylindrical core tank 13 that is provided within the reactor pressure vessel 11 and forms an annular downcomer 14 with an inside surface of the reactor pressure vessel 11; a core that is arranged within the core tank 13; a lower core support plate 17 that is provided in a manner broadening horizontally on the lower side of the core and is provided with many upward circulation apertures 80; and a cylindrical perforated plate 31 that separates a lower plenum 16 from a bottom of the downcomer 14 and is provided with multiple inward circulation apertures 83 which individually act as a flow channel from the bottom of the downcomer 14 to the lower plenum 16. The inward circulation apertures 83 slant upward to the lower plenum 16 on a side open toward the lower plenum 16.
摘要翻译：要解决的问题：减少冷却剂供应在压水反应堆中的燃料组件的径向分布的偏差。压力水反应堆包括：反应堆压力容器11; 设置在反应堆压力容器11内并形成具有反应堆压力容器11的内表面的环状降液管14的圆筒形芯槽13; 芯体布置在芯罐13内; 下芯体支撑板17以在芯的下侧上水平地变宽的方式设置并且设置有许多向上循环孔80; 以及将下部增压室16与降液管14的底部分开的圆柱形多孔板31，并且设置有多个向内循环孔83，该向内循环孔83分别作为从降液管14的底部到下部增压室16的流动通道。向内循环孔83向下向下通风室16向下倾斜到下部增压室16。版权所有：（C）2012，JPO＆INPIT

27. 发明专利

JPH08233150A MAIN STREAM SEPARATION VALVE 失效
公开(公告)号：JPH08233150A
公开(公告)日：1996-09-10
申请号：JP4219995
申请日：1995-03-01
申请人： TOSHIBA CORP
发明人： MAEDA YUJI , SHIMAMURA MITSUAKI , YAMAMOTO TETSUZO
IPC分类号： F16K1/10 , F16K31/122
摘要： PURPOSE: To provide a main steam separation valve which is of a small size and a light weight, has an excellent earthquake-proof property, and simplifies the breakdown in a periodical inspection and the work in the assemby time so as to improve the maintenance efficiency, and furthermore, can reduce the pressure loss and the vibration of a valve body in a plant operating condition. CONSTITUTION: A valve box 11 having almost a linear steam passage 11a; and a valve body 12 movable on the axial center crossing to the steam passage 11a of the valve box 11; are provided. This valve body 12 is operated to reciprocate by a valve body driving mechanism 14 provided to the outer side of the valve box so as to open and close the steam passage 11a. The valve body driving mechanism 14 is composed of an air cylinder 14a to control the reciprocating operation speed of a piston 14f by regulating the air feed flow rate or the air exhaust flow rate by a flow rate regulating valve of an air feeding system.

28. 发明专利

JPH08121626A MAIN STEAM RELIEF SAFETY VALVE 失效
公开(公告)号：JPH08121626A
公开(公告)日：1996-05-17
申请号：JP25239694
申请日：1994-10-18
申请人： TOSHIBA CORP
发明人： MAEDA YUJI , SHIMAMURA MITSUAKI , KITAJIMA YASUKI , TANAKA NOBUHIKO , YAMADA KATSUMI , YAMAMOTO TETSUZO
IPC分类号： F16K31/122 , F16K17/04
摘要： PURPOSE: To provide a main steam relief safety valve which has been miniaturized, excellent in the maintenance workability, capable of increasing the capacity, difficult to cause the seat leak, and has been improved in the reliability. CONSTITUTION: A main steam relief safety valve is provided in a main steam tube 8 of a power station, and provided with the safety valve function and the relief valve function, and a valve seat 3 is provided in a valve box 1 connected to the main steam tube 8. A valve element 2 is pressed against this valve seat 3 by a valve rod 4 and the steam in the main steam tube 8 is sealed by the valve element 2 together with the valve seat 3. The valve box 1 is integrated with a steam pressure cylinder 30, and the energizing force of the spring 13 is applied in the valve closing direction through a steam pressure cylinder shaft 35. One end of a lever 18 is connected to the valve rod 4 and the other end is connected to the steam pressure cylinder shaft 35 respectively, and the leverage is made with a support point 29 of rotation fitted to the position close to the middle as the fulcrum.

29. 发明专利

JPH06337080A SOLENOID VALVE 失效
公开(公告)号：JPH06337080A
公开(公告)日：1994-12-06
申请号：JP12753193
申请日：1993-05-28
申请人： TOSHIBA CORP
发明人： SHIMANO KUNIO , YAMADA KATSUMI , TANAKA NOBUHIKO , YAMAMOTO TETSUZO , MIZUGUCHI KOJI
IPC分类号： F16K31/06
摘要： PURPOSE:To ensure the proper open/close operation of a valve, even when the valve is used in close state over a long time, and improve the reliability thereof by preventing the occurrence of seizure between a valve seat and the valve. CONSTITUTION:A solenoid valve has a valve seat 3 laid in a flow passage 2 formed in a valve box 1, a valve 4 formed out of an elastic body for blocking the seat 3 and the flow of fluid, and a valve driving section for actuating the valve 4 with a core 11, a coil 8 and a coil spring 12. In this case, the solenoid valve is fitted with a voltage regulator 20 for adjusting a voltage value applied to a coil 10 with the coil 8 excited, to such voltage as generating a magnetic force slightly larger than the spring force of the spring 12.

30. 发明专利

JPH03158791A INTERNAL PUMP 失效
公开(公告)号：JPH03158791A
公开(公告)日：1991-07-08
申请号：JP29743289
申请日：1989-11-17
申请人： TOSHIBA CORP
发明人： USU MASAJI , OMIDA HIDEO , TOGASAWA YUTAKA , SAITO NOBORU , TAKAHASHI HIDEAKI , YAMAMOTO TETSUZO , ENDO TAKIO
IPC分类号： G21C15/243 , F04D7/08
摘要： PURPOSE:To decrease components which has possibility of becoming loose and to shorten the attachment and detachment time by fitting a diffuser directly to a boss part in a nuclear reactor pressure vessel without using any stretch tube. CONSTITUTION:Plural boss parts 2 penetrate the bottom part of the nuclear reactor pressure vessel 1 at equal intervals in the circumferential direction. The casing 5 of the motor part 4 of the internal pump 3 is fixed to each boss part 2. The lower end outside of the sleeve 14 of the pump 3 and the upper end outside of the boss part 2 of the vessel 1 have cuts 23 and 24 as welding margins over the entire circumference and those parts are welded 25 to fit the diffuser directly to the vessel 1. Consequently, no stretch tube is used for the fixation of the diffuser, so any dedicated jig, etc., is not required to reduce the possibility of loose parts, thereby shortening the attachment and detachment time.

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