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    • 1. 发明专利
    • Neutron measuring device
    • NEUTRON测量装置
    • JP2012052889A
    • 2012-03-15
    • JP2010195043
    • 2010-08-31
    • Toshiba Corp株式会社東芝
    • TAKEMURA MAKOTONAITO SUSUMUSAKURAI SHUNGOISHIGE TAKAYUKI
    • G21C17/108
    • PROBLEM TO BE SOLVED: To provide a neutron measuring device that reduces scattered neutrons and improves measurement accuracy of an occurrence position of neutrons in a neutron source.SOLUTION: A neutron measuring device of the present invention includes: a neutron detection device 1; a first moderator 2 that is provided on a neutron incident face side of the neutron detection device 1; and a second moderator 3 that is arranged to cover a face other than faces that are in contact with the neutron incident face of the first moderator 2 and the neutron detection device, and has a higher moderating effect than the first moderator 2.
    • 要解决的问题:提供一种中子测量装置,其减少散射中子并提高中子源中的中子发生位置的测量精度。 解决方案:本发明的中子测量装置包括:中子检测装置1; 设置在中子检测装置1的中子入射面侧的第一调节器2; 以及第二调节器3,其布置成覆盖与第一调节剂2和中子检测装置的中子入射面接触的面以外的面,并且具有比第一调节剂2更高的调节作用。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Super-critical pressure water cooled reactor and super-critical pressure water cooled fuel assembly
    • 超临界压力水冷却反应堆和超临界压力水冷却燃料装配
    • JP2007198997A
    • 2007-08-09
    • JP2006020146
    • 2006-01-30
    • Toshiba Corp株式会社東芝
    • OKAWA MASAHIROMOROOKA SHINICHISAKURAI SHUNGO
    • G21C15/02G21C1/08G21C3/326
    • Y02E30/38
    • PROBLEM TO BE SOLVED: To secure a slowing-down power required by a reactor core of a thermal neutron super-critical pressure water cooled reactor without causing decrease in steam temperature at an outlet of a reactor core.
      SOLUTION: A super-critical pressure water cooled reactor comprises a plurality of fuel assemblies 30 consisting of a water rod 6, a plurality of fuel rods 3 and a channel box 1 surrounding the side faces of them, and super-critical pressure water is used as a moderator and a cooling medium. The cooling medium is made to flow upward outside of the channel box 1 and inside of the channel box 1 to the outside of the water rod 6. A water rod moderator feeding passage 16 for feeing the moderator into the water rod 6 from outside of the channel box 1 is formed at a height corresponding the top of the fuel rod 3, and a moderator discharging hole 13 is formed at the height corresponding to the bottom of the fuel rod 2 in the wall of the water rod 6 to allow the cooling medium in the water rod 6 to flow out of the water rod 6 inside of the channel box 1 to cause a downward flow of the moderator in the water rod 6.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:确保热中子超临界压力水冷却反应堆的反应堆芯所需的减速功率,而不会引起反应堆堆芯出口处蒸汽温度的降低。 解决方案:超临界压力水冷却反应器包括由水杆6,多个燃料棒3和围绕它们的侧面的通道箱1组成的多个燃料组件30和超临界压力 水用作调节剂和冷却介质。 使冷却介质在通道箱1的外部和通道箱1的内部向外流动到水杆6的外部。一个水杆调节剂供给通道16,用于从慢冷器的外部向冷凝器6供水 通道箱1形成在与燃料棒3的顶部相对应的高度处,并且在与水杆6的壁中的燃料棒2的底部相对应的高度处形成有减速剂排放孔13,以允许冷却介质 在水杆6中从通道箱1内部的水杆6流出,以使慢化剂在水杆6中向下流动。版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Emergency power supply system
    • 紧急电源系统
    • JP2013104790A
    • 2013-05-30
    • JP2011249075
    • 2011-11-14
    • Toshiba Corp株式会社東芝
    • KITAMURA TAKUSAKAI NORIOTAKEUCHI YUTAKASAKURAI SHUNGOTAKIWAKI KENYA
    • G21D3/04G21D7/04H01L35/30
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To enable a stable supply of emergency power when all power sources are lost.SOLUTION: An emergency power supply system includes: a chemical heat storage facility 11 that includes a reaction vessel 16 filled with a heat storage medium 28 and a storage container 17 connected to the reaction vessel via a communication pipe 18 and stores heat using a chemical reaction of the heat storage medium to radiate the heat; a first heat exchange loop 13 for performing heat exchange between the storage container and a nuclear reactor vessel primary system to heat the storage container; a thermoelectric conversion device 12 for generating electricity by a temperature difference between a high-temperature part 12A and a low-temperature part 12B; a second heat exchange loop 14 for performing heat exchange between the reaction vessel and a high-temperature part of the thermoelectric conversion device to heat the high-temperature part; and a final radiation cooling loop 15 for performing heat exchange between a low-temperature part of the thermoelectric conversion device and a final heat sink 25 to cool the low-temperature part. Further, a valve disposed in the first heat exchange loop 13 passively open-operates when power is lost to cause the storage container to be heated by a nuclear reactor vessel primary coolant to radiate the heat stored in the chemical heat storage facility 11 so that the thermoelectric conversion device 12 generates power using the heat.
    • 要解决的问题:为了在所有电源丢失时能够稳定地提供应急电源。 解决方案:应急电源系统包括:化学蓄热设备11,其包括填充有蓄热介质28的反应容器16和经由连通管18连接到反应容器的储存容器17,并且使用 蓄热介质的化学反应来散热; 第一热交换回路13,用于在存储容器和核反应堆容器主系统之间进行热交换以加热存储容器; 用于通过高温部分12A和低温部分12B之间的温度差发电的热电转换装置12; 用于在反应容器和热电转换装置的高温部分之间进行热交换以加热高温部分的第二热交换回路14; 以及用于在热电转换装置的低温部分和最终散热器25之间进行热交换以最终冷却低温部分的最终辐射冷却回路15。 此外,当功率消失时,设置在第一热交换回路13中的阀被动地打开,以使存储容器被核反应堆容器的一次冷却剂加热,以辐射存储在化学储热设备11中的热量, 热电转换装置12使用热量来发电。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Device and method for measuring void fraction
    • 用于测量无声分段的装置和方法
    • JP2011017551A
    • 2011-01-27
    • JP2009160712
    • 2009-07-07
    • Toshiba Corp株式会社東芝
    • SAKURAI SHUNGO
    • G21C17/038
    • PROBLEM TO BE SOLVED: To measure a local void fraction inside a core, in real time.SOLUTION: A void fraction measuring device 10, which measures void fraction inside a core of a boiling water reactor includes a detector assembly 20, a void fraction dependency memory 13 and a void fraction calculating device 14. The detector assembly 20, which includes a neutron detector 11 and a gamma-ray detector 12, is placed inside the core. The void fraction dependency memory 13 stores the void fraction dependency of the ratio of the neutron flux measured by the neutron detector 11 to the intensity of the gamma rays measured by the gamma-ray detector 12. The void fraction calculating device 14, to which the neutron flux measured by the neutron detector 11 and the intensity of the gamma rays measured by the gamma-ray detector 12 are conveyed, calculates the ratio of the neutron flux to the intensity of the gamma rays and computes a void fraction, on the basis of the ratio of the former to the latter and the void fraction dependence.
    • 要解决的问题:实时测量芯内的局部空隙率。解决方案:测量沸水反应堆核心内的空隙率的空隙分数测量装置10包括检测器组件20,空隙率依赖性 存储器13和空隙分数计算装置14.包括中子检测器11和伽马射线检测器12的检测器组件20放置在芯内。 空隙率依存存储器13存储由中子检测器11测量的中子通量与由γ射线检测器12测量的伽马射线强度的比率的空隙率依赖性。空隙率计算装置14, 传送由中子检测器11测量的中子通量和由伽马射线检测器12测量的伽马射线的强度,计算出中子通量与γ射线强度的比值,并基于 前者与后者的比率和空隙率依赖性。
    • 7. 发明专利
    • Pressurized-water reactor and fuel assembly used therefor
    • 加压水反应器和燃料组件
    • JP2010019806A
    • 2010-01-28
    • JP2008183031
    • 2008-07-14
    • Toshiba Corp株式会社東芝
    • SAKURAI SHUNGO
    • G21C3/322G21C3/324
    • Y02E30/38
    • PROBLEM TO BE SOLVED: To prevent the lateral flow of the coolant in the fuel assembly in a pressurized-water reactor.
      SOLUTION: The fuel assembly 10 loaded to the pressurized-water reactor is configured in such a way that a plurality of fuel rods 4 containing a nuclear fuel material, intra-reactor instrumentation guide thimbles 6 and control rod guide thimbles 7 are arranged in a square lattice shape and the outer circumference is surrounded by a lateral flow control plate 1 of a square tube shape. When loading a pressurized-water reactor loaded with a so called can-less type fuel assembly, the fuel rods 4 of the outermost circumference can be configured not to interfere with the lateral flow control plate 1 and the neighboring fuel assembly, even if the outer width of the flow control plate 1 is made equal to the outer width of the fuel assembly by reducing the outer diameter of the outermost circumference of the fuel rods 4 or by reducing the fuel rod pitch of the outermost circumference of the fuel rods 4.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了防止加压水反应器中的燃料组件中的冷却剂的横向流动。 解决方案:装载到加压水反应堆的燃料组件10被配置成使得包含核燃料材料,反应堆内仪表导向套管6和控制棒导向套管7的多个燃料棒4被布置 并且外周由方管形状的侧流控制板1包围。 当装载装有所谓的无罐式燃料组件的加压水反应器时,最外周的燃料棒4可以构造成不干扰侧流控制板1和相邻的燃料组件,即使外部 通过减少燃料棒4的最外周的外径或通过减少燃料棒4的最外周的燃料棒间距,使流量控制板1的宽度等于燃料组件的外部宽度。 P>版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • 小型原子炉およびその制御方法
    • 小核反应堆及其控制方法
    • JP2014224764A
    • 2014-12-04
    • JP2013104170
    • 2013-05-16
    • 株式会社東芝Toshiba Corp
    • SAKURAI SHUNGOKITAMURA TAKUYAMAMOTO YASUSHITAKIWAKI KENYA
    • G21C7/28
    • Y02E30/39
    • 【課題】液体状の反射体のみで原子炉の反応度を制御可能とするとともに、給排液管又は給排気管が破断又は損傷した場合でも炉心の損傷を抑制する。【解決手段】炉心1の周囲に配置され内部に液体の反射体2aが収容される反射体容器2と、圧力容器5を貫通し前記反射体容器2の上部に接続される給排液管3及び給排気管4と、を有し、前記反射体2aの液位を調整することで炉心1の反応度を制御する小型原子炉であって、前記給排液管3及び給排気管4が前記圧力容器5を貫通する貫通部と、前記給排液管3及び給排気管4と反射体容器2との接続部が前記炉心1の最上端1aよりも高い位置にある。【選択図】図1
    • 要解决的问题:提供一种能够仅通过液体反射器控制反应器的反应性的小核反应堆,并且即使当液体供给/排出管或气体供给/放电管断裂时也能够防止反应堆堆芯的损坏 或损坏。解决方案:小型核反应堆包括:反射器容器2,其设置在反应堆芯1周围以在其中存储液体反射器2a; 以及液体供给/排出管3和气体供给/排出管4,其穿过压力容器5并连接到反射器容器2的上部,通过调节反应堆堆芯1的反应性, 的反射器2a的液体。 液体供给/排出管3和气体供给/排出管4穿过压力容器5的穿透部分和液体供应/排出管3和气体供应/排出管4与反射器容器连接的连接部分 2被定位成高于反应堆堆芯1的最上端1a。
    • 9. 发明专利
    • Core fused material extracting method and system
    • 核心熔融材料提取方法和系统
    • JP2014145635A
    • 2014-08-14
    • JP2013013847
    • 2013-01-29
    • Toshiba Corp株式会社東芝
    • KITAMURA TAKUSAKAI NORIOTAKEUCHI YUTAKASAKURAI SHUNGOGUNJI SATOSHIHAYASHI YAMATO
    • G21F9/30
    • PROBLEM TO BE SOLVED: To extract a core fused material after a severe accident of a nuclear power plant while keeping the subcriticality.SOLUTION: The core fused material extracting system 10 crushes a core fused material lump 1 to be extracted into core fused material pieces 2 and extracts them. The system 10 includes a fine crushing device 11 that includes a drilling section 14 for drilling the core fused material lump 1 at a tip of a rotation shaft 15, drills the core fused material lump 1 by rotation of the drilling section 14 to change the shape thereof, and crushes it into fine core fused material pieces 2. The drilling section 14 of the fine crushing device is configured so that, when the core fused material lump 1 is drilled for shape change, the shape is changed in the direction in which the superficial area of the core fused material lump 1 per volume deviates from a spherical shape and becomes large.
    • 要解决的问题:在核电站发生严重事故后提取核心熔融材料,同时保持次临界。解决方案:芯熔融材料提取系统10将芯熔融材料块1压碎以提取到芯熔料2中 并提取它们。 系统10包括细碎破碎装置11,该破碎装置11包括用于在旋转轴15的尖端处钻取核心熔融材料块1的钻孔部分14,通过钻孔部分14的旋转来钻取芯熔融材料块1以改变形状 将其粉碎成细芯材料片2.细碎破碎装置的钻孔部分14构造成使得当芯熔融材料块1被钻孔以形状改变时,其形状沿着 每个体积的芯部熔融材料块1的表面积偏离球形并变大。
    • 10. 发明专利
    • Supercritical pressure light water cooled nuclear reactor
    • 超临界轻水冷却核反应堆
    • JP2014106035A
    • 2014-06-09
    • JP2012257535
    • 2012-11-26
    • Toshiba Corp株式会社東芝
    • SAKURAI SHUNGOKITAMURA TAKUKIMURA REI
    • G21C15/02G21C1/08
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To cause a core flow amount to increase by using a part of supercritical pressure steam as a recirculating flow, and thereby to attain improvement in a thermal transfer characteristic of cooling water and increase in output improvement, and to maintain soundness of a pressure vessel.SOLUTION: The supercritical pressure light water cooled nuclear reactor includes: an intermediate vessel 2 that accommodates a reactor core 1, a plurality of cylindrical members 7 arranged at an upper part of the reactor core and a steam reservoir 8 formed at an upper part of the cylindrical member; a pressure vessel 3 that accommodates the intermediate vessel 2; a plurality of water supply pipes 5 that is provided on a side wall of the intermediate vessel 2, and guides supercritical pressure light water 14 flowed into the pressure vessel 3 to the intermediate vessel 2; and an opening 11 that is provided on a side wall of the steam reservoir 8 and causes a part of supercritical pressure steam 15 to be flowed out to the intermediate vessel 8.
    • 要解决的问题:通过使用一部分超临界压力蒸汽作为再循环流使核心流量增加,从而提高冷却水的热传递特性并提高输出改善,并且保持良好的 压力容器。解决方案:超临界压力轻水冷却核反应堆包括:容纳反应堆堆芯1的中间容器2,布置在反应堆芯的上部的多个圆柱形构件7和形成在反应堆芯1的上部的蒸汽储存器8。 圆柱体的上部; 容纳中间容器2的压力容器3; 多个供水管5设置在中间容器2的侧壁上,并将超临界压力轻水14引导到压力容器3中的中间容器2; 以及设置在蒸汽容器8的侧壁上并使一部分超临界压力蒸汽15流出到中间容器8的开口11。