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11. 发明专利

JPH10221480A STEAM SEPARATOR, ATOMIC POWER PLANT AND BOILER DEVICE 失效
公开(公告)号：JPH10221480A
公开(公告)日：1998-08-21
申请号：JP28823897
申请日：1997-10-21
申请人： TOSHIBA CORP
发明人： NARABAYASHI SUNAO , AKIBA YOSHIYUKI , MOROOKA SHINICHI , NAKAMARU MIKIHIDE , YASUOKA MAKOTO
IPC分类号： G21C7/26 , B01D45/00 , B01D45/16 , F22B7/08 , F22B37/26 , F22B37/32 , G21C3/00 , G21C3/34 , G21C15/16 , G21C15/24 , G21D3/00 , G21D5/12
摘要： PROBLEM TO BE SOLVED: To simultaneously attain steam water separation and core forced circulation by introducing a separator injector with high outlet pressure than inlet pressure instead of active components in reactor recirculation system formally necessary. SOLUTION: In the lower part of downcomer 6 in a reactor pressure vessel 5, a jet pump 14 and a recirculation flow control valve 7 are provided. By making the shroud head in dual structure 10a and 10b and accelerating steam water two-phase flow flowing in from the lower part of lower step 10b with an acceleration nozzle of a separator injector 1, and separating fluid into steam and water, the liquid phase is pressurized with a diffuser and introduced via the gap formed with dual shroud heads 10a and 10b to a jet pump 14. Or instead of this separator injector 1, a round pipe shape separator injector formed by spirally placing a steam nozzle and a diffuser in the vicinity of inner wall of the pipe can be arranged.

12. 发明专利

JP2006322627A HEAT EXCHANGER, ITS MANUFACTURING METHOD, AND NUCLEAR REACTOR CONTAINMENT VESSEL SYSTEM 审中-公开
公开(公告)号：JP2006322627A
公开(公告)日：2006-11-30
申请号：JP2005143883
申请日：2005-05-17
申请人： TOSHIBA CORP
发明人： AKIBA YOSHIYUKI , IWAKI CHIKAKO , KOMITA HIDEO , IKEDA TATSUMI , AOKI KAZUYOSHI , MOROOKA SHINICHI , TOBIMATSU TOSHIMI
IPC分类号： F28F13/18 , F28B1/02 , G21C9/00 , G21C9/004 , G21C15/18 , G21D1/00
摘要： PROBLEM TO BE SOLVED: To provide a heat exchanger suitably used for cooling a nuclear reactor containment vessel and realizing the improvement of cooling capacity and reduction of pressure loss. SOLUTION: This heat exchanger comprises a water storage tank 1 for storing the cooling water 2, and a heat transfer tube 3 dipped in the cooling water 2 and condensing the steam in the heat transfer tube 3. The heat transfer tube 3 is approximately horizontally extended, a water-repellent substance is placed in a state of covering a lower portion of an inner face of the heat transfer tube 3, and further a hydrophilic substance is placed in a state of covering an outer face of the heat transfer tube 3. The heat exchanger is applied to a static containment vessel cooling system. COPYRIGHT: (C)2007,JPO&INPIT

13. 发明专利

JP2005249577A Fuel assembly and boiling water reactor 审中-公开
标题翻译：燃油组件和锅炉水反应堆
公开(公告)号：JP2005249577A
公开(公告)日：2005-09-15
申请号：JP2004060349
申请日：2004-03-04
申请人： Toshiba Corp , 株式会社東芝
发明人： AKIBA YOSHIYUKI , MOROOKA SHINICHI
IPC分类号： G21C3/06 , G21C3/33
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a fuel assembly easily applied with a hydrophilic coating due to few portions for hydrophilic coating, having high critical output, and having little friction loss, and to provide a boiling water reactor with reduced operation costs.
SOLUTION: This fuel assembly comprises a plurality of fuel rods 2 each filled with nuclear fuel and provided so as to leave a gap therebetween through which a coolant flows, upper and lower tie plates 6 and 7 for holding upper and lower parts of the plurality of fuel rods 2, respectively, spacers 4 for supporting/fixing the plurality of fuel rods 2, and a tubular channel box 1 surrounding the side-part peripheries of the plurality of fuel rods 2. A hydrophilic coating 12 is applied onto the surface of each fuel rod, only on a portion higher than a length middle position 11 of each of the plurality of fuel rods 2.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种容易涂覆亲水涂层的燃料组件，由于少量的亲水涂层，具有高临界输出，并且摩擦损失小，并提供了降低运行成本的沸水反应器。解决方案：该燃料组件包括多个燃料棒2，每个燃料棒充满核燃料，并且设置成在冷却剂流过之间留有间隙，上和下连接板6和7用于保持上部和下部部分多个燃料棒2分别用于支撑/固定多个燃料棒2的间隔件4和围绕多个燃料棒2的侧面周边的管状通道箱1.将亲水涂层12施加到每个燃料棒的表面仅在高于多个燃料棒2中的每一个的长度中间位置11的部分上。版权所有（C）2005，JPO＆NCIPI

14. 发明专利

JP2004003932A Structure of reactor-core entrance for coolant 有权
公开(公告)号：JP2004003932A
公开(公告)日：2004-01-08
申请号：JP2002299645
申请日：2002-10-11
申请人： Toshiba Corp , 株式会社東芝
发明人： FUJII TOSHIHIRO , FUJITA SHIHO , MOTOTANI AKIRA , KOMITA HIDEO , AKIBA YOSHIYUKI , NARABAYASHI SUNAO , UKAI MASARU , MOROOKA SHINICHI , YAMAMOTO TETSUZO , KATO TATSUMA
IPC分类号： G21C5/06 , G21C3/322 , G21C3/33 , G21C7/16 , G21C15/00 , G21C15/02
CPC分类号： G21C15/00 , G21Y2002/204 , G21Y2004/302 , G21Y2004/403 , Y02E30/31
摘要： PROBLEM TO BE SOLVED: To make appropriate the coefficient of pressure loss in a channel at an entrance orifice etc., arranged at a part surrounded by reinforcing beam plates, to highly accurately uniformize the quantity of flow in fuel assemblies, and thus to improve the cooling performance.
SOLUTION: A reactor core support plate 6; a reinforcing beam 7 for reinforcing the reactor core support plate 6 from the side of its lower surface; a plurality of control rod guide tubes 10, which are vertically raised from the bottom side of the nuclear reactor pressure container and of which the upper ends are each combined with the sections of fuel support holes of the reactor core support plate 6; a fuel-support metal fixture 16, which is inserted in the upper end of each control rod guide tube and which supports the lower ends of the plurality of fuel assemblies 15, supported by the reactor core support plate 6 and arranged vertically in a reactor core; and an entrance orifice 19, provided at the fuel support metal fixture 16 for controlling the quantity of flow of a coolant flowing to the fuel assemblies 15. A vortex control means controls the vortexes of the coolant flowing into the entrance orifice 19, provided at the fuel support metal fixture 16 and is provided on the downstream side of the entrance orifice 19.
COPYRIGHT: (C)2004,JPO

15. 发明专利

JP2003232879A FUEL SUPPORT METAL FITTING AND FUEL ASSEMBLY 审中-公开
公开(公告)号：JP2003232879A
公开(公告)日：2003-08-22
申请号：JP2002031929
申请日：2002-02-08
申请人： TOSHIBA CORP
发明人： MITSUTAKE TORU , SHIRAKAWA TAKEETSU , AKIBA YOSHIYUKI , KUBO SHINJI , NARABAYASHI SUNAO
IPC分类号： G21C3/30 , G21C3/33
摘要： PROBLEM TO BE SOLVED: To prevent foreign matter from flowing into a fuel assembly without changing design of a fuel assembly shape. SOLUTION: A protrusion part 29 is provided in a inner surface of a fuel assembly support hole 15 of a fuel support metal fitting 7a. A filter 26 is fixed via a filter support plate 27 to the protrusion part 29. The filter 26 of a three- dimensional shape is mounted on the filter support plate 27. The filter 26 extends from the protrusion part 29 to a vicinity of the upper end of a coolant inflow hole 16 formed on a lower side wall of the fuel support fitting member 7a. The filter 26 having the three-dimensional shape increases a passing area of a coolant. The coolant flows from an inlet orifice 18 through the coolant inflow hole 16 to a coolant flow path chamber 17, passes the filter 26, and further flows from a lower tie plate 11 into the fuel assembly 10. The filter 26 collects foreign matters in the coolant, thereby preventing them from flowing into the fuel assembly 10. COPYRIGHT: (C)2003,JPO

16. 发明专利

JP2003139884A DEVICE FOR MEASURING VOID FRACTION 审中-公开
公开(公告)号：JP2003139884A
公开(公告)日：2003-05-14
申请号：JP2001339887
申请日：2001-11-05
申请人： TOSHIBA CORP
发明人： AKIBA YOSHIYUKI , SHIRAKAWA TAKEETSU , MOROOKA SHINICHI , KUBO SHINJI , MIURA SHIGERU
IPC分类号： G01N23/12 , G21C17/02 , G21C17/038
摘要： PROBLEM TO BE SOLVED: To provide a device for measuring a void fraction which has a simple structure and makes it possible to obtain a measured value of a much higher and more widespread void fraction. SOLUTION: The device for measuring a void fraction has an X-ray generation device 16 on one side of an object to be measured and an X-ray detection device 17 on the other side of it. The device for measuring a void fraction that measures a void fraction, a ratio occupied by the volume of steam of that of a two-phase flow in the two-phase flow flowing in the object is equipped with a pedestal drive control device 20 that can freely advance and retreat a pedestal 19 on which the X-ray generation device 16 and the X-ray detection device 17 are put.

17. 发明专利

JPH11137935A STEAM DRYER AND NUCLEAR REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPH11137935A
公开(公告)日：1999-05-25
申请号：JP31293797
申请日：1997-11-14
申请人： TOSHIBA CORP
发明人： YASUOKA MAKOTO , NAKAMARU MIKIHIDE , NARABAYASHI SUNAO , MOROOKA SHINICHI , AKIBA YOSHIYUKI
IPC分类号： G21C13/00 , B01D45/08 , G21C15/16
摘要： PROBLEM TO BE SOLVED: To realize a steam dryer consisting of lightweight and simple structure to contrive miniaturizing the device. SOLUTION: This steam dryer has a first steam drying unit 2 which consists of a cylindrical body provided double and through whose inner cylindrical body steam flows, a second steam drying unit 3 provided outside the steam drying unit 2, and a third steam drying unit 4. In each of the steam drying units 2, 3, 4, a group of plural corrugated plates that plates each whose part is bent are put together are arranged is arranged and a drain means is provided for catching liquid falling via a liquid phase catching flow passage formed in the clearances of the corrugated plates provided below the corrugated plate group to discharge it to the outside. The height of the second and third steam drying unit 3, 4 is set lower than that of the first steam drying unit 2. When installing this steam dryer in a nuclear reactor pressure vessel, it is installed so that the upper cover of the pressure vessel does not interfere with the steam dryer, and the total length of the pressure vessel can be shortened.

18. 发明专利

JP2008157972A Inlet structure for coolant core 审中-公开
标题翻译：冷却核心入口结构
公开(公告)号：JP2008157972A
公开(公告)日：2008-07-10
申请号：JP2008076818
申请日：2008-03-24
申请人： Toshiba Corp , 株式会社東芝
发明人： FUJII TOSHIHIRO , FUJITA SHIHO , MOTOTANI AKIRA , KOMITA HIDEO , AKIBA YOSHIYUKI , NARABAYASHI SUNAO , UKAI MASARU , MOROOKA SHINICHI , YAMAMOTO TETSUZO , KATO TATSUMA
IPC分类号： G21C15/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To make proper the passage pressure loss factor in an inlet orifice or the like disposed in a portion surrounded by a reinforcing beam and uniform the flow rate in fuel assemblies, thereby improving cooling capability. SOLUTION: An inlet structure for coolant core includes: a core support plate 6; a reinforcing beam 7 supporting the core support plate 16 from a lower portion thereof; a plurality of control rod guide pipes 10 standing perpendicularly upward from a bottom side of a reactor pressure vessel and having upper end portions fitted respectively to fuel support holes formed to the core support plate 6; a fuel support member 16 inserted into upper end portions of the control rod guide pipes and supported by the core support plate 6 vertically in a core so as to support lower end portions of fuel assemblies 15 arranged in the core; an inlet orifice 19 formed to the fuel support member 16 so as to adjust the flow rate of a coolant flowing into the fuel assemblies 15; and vortex control means for controlling vortex of the coolant flowing into the inlet orifice 19 formed to the fuel support member 16, the vortex control means being provided at a portion on a coolant upstream side of the inlet orifice 19. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了使设置在由加强梁包围的部分中的入口孔等中的通道压力损失因子适当，并且使燃料组件中的流速均匀，从而提高冷却能力。解决方案：用于冷却剂芯的入口结构包括：芯支撑板6; 从其下部支撑芯支撑板16的加强梁7; 多个控制杆引导管10，其从反应堆压力容器的底侧垂直向上竖立并且具有分别安装到形成于芯支撑板6上的燃料支撑孔的上端部; 燃料支撑构件16，其插入到控制棒引导管的上端部并且由芯支撑板6垂直地支撑在芯中，以支撑布置在芯中的燃料组件15的下端部; 形成在燃料支撑构件16上以便调节流入燃料组件15的冷却剂的流量的入口孔19; 以及用于控制流入形成于燃料支撑构件16的入口孔19中的冷却剂涡流的涡流控制装置，涡流控制装置设置在入口孔19的冷却剂上游侧的一部分上。 C）2008，JPO＆INPIT

19. 发明专利

JP2008076244A Failed fuel detection system 审中-公开
标题翻译：故障燃油检测系统
公开(公告)号：JP2008076244A
公开(公告)日：2008-04-03
申请号：JP2006256127
申请日：2006-09-21
申请人： Toshiba Corp , 株式会社東芝
发明人： AKIBA YOSHIYUKI , MOROOKA SHINICHI
IPC分类号： G21C17/07
摘要： PROBLEM TO BE SOLVED: To certainly separate reactor water from the reactor water and fission product flowing from a sipper cap, and to seal the gap between the sipper cap and a channel box.
SOLUTION: This failed fuel detection system comprises a sipper cap 2 mounted on the upper part of the channel box 8, a compressor 6 for feeding gas into the sipper cap 2, and a gas extraction tank 4 for storing the fluid from the sipper cap 2. The sipper cap 2 is connected with a pressure reduction pump 5 for releasing the fission product from a failed fuel rod and guiding the fission product to the gas extraction tank 4 via the sipper cap 2. The gas extraction tank 4 is connected with a radiation detector 7 for detecting fission product stored in the gas extraction tank 4. A separating mechanism 30 for separating reactor water W from the reactor water W and fission product fed from the sipper cap 2 is disposed between the sipper cap 2 and the gas extraction tank 4.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了将来自反应器的反应器水与从吸嘴盖流出的裂变产物确实分离，并且密封吸嘴盖和通道箱之间的间隙。解决方案：该失效的燃料检测系统包括安装在通道箱8的上部的吸嘴盖2，用于将气体进入吸嘴盖2的压缩机6和用于将来自吸嘴帽2.吸嘴帽2与减压泵5连接，用于从故障燃料棒释放裂变产物，并经由吸嘴盖2将裂变产物引导至气体提取罐4.气体提取罐4连接用于检测存储在气体提取罐4中的裂变产物的辐射检测器7.用于将反应器水W与反应器水W分离的分离机构30和从吸嘴盖2供给的裂变产物设置在吸嘴盖2和气体提取罐4.版权所有（C）2008，JPO＆INPIT

20. 发明专利

JP2005049160A Fuel supporting metal fixture 审中-公开
标题翻译：燃油支撑金属件
公开(公告)号：JP2005049160A
公开(公告)日：2005-02-24
申请号：JP2003204567
申请日：2003-07-31
申请人： Toshiba Corp , 株式会社東芝
发明人： AKIBA YOSHIYUKI , MOROOKA SHINICHI
IPC分类号： G21C5/06 , G21C15/02
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To prevent foreign articles from coming in a foreign article filter structure of fuel supporting metal fixture without degrading gas-liquid counter-current flow limit characteristics. SOLUTION: The fuel supporting metal fixture 7 supports the lower part of a nuclear fuel assembly and has inside a coolant flow path room for guiding coolant from a coolant flow inlet 16 directing to the nuclear fuel assembly. A filter 50 is arranged at the coolant flow inlet, and the filter has a plurality of flow paths nearly parallel to each other. Each flow path inclines upward at the inlet, changes the direction in the path, and inclines downward at the part going out the coolant flow path room. The wall of the flow path in the filter remains roughened. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止外来物品进入燃料支撑金属夹具的异物过滤器结构，而不会降低气液逆流限流特性。燃料支撑金属固定件7支撑核燃料组件的下部，并且在冷却剂流路室内部具有用于引导冷却剂从指向核燃料组件的冷却剂流入口16的内部。过滤器50布置在冷却剂流入口处，并且过滤器具有彼此平行的多个流动路径。每个流路在入口处向上倾斜，改变路径中的方向，并且在从冷却剂流动路径室出来的部分向下倾斜。过滤器中的流动路径的壁保持粗糙。版权所有（C）2005，JPO＆NCIPI

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