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    • 1. 发明专利
    • Jet pump
    • 喷气泵
    • JP2005233152A
    • 2005-09-02
    • JP2004046322
    • 2004-02-23
    • Chubu Electric Power Co IncToshihiko ShiyakouchiToshiba Corp中部電力株式会社株式会社東芝敏彦 社河内
    • YAMAZAKI YUKITAKAKONDO TAKAHISANARABAYASHI SUNAOKOBAYASHI HIDETOSHISHIYAKOUCHI TOSHIHIKO
    • F04F5/10
    • PROBLEM TO BE SOLVED: To provide a jet pump with improved pump efficiency for improving economical efficiency of a nuclear power plant and cooling material circulation flow rate.
      SOLUTION: This jet pump 27 is provided with a drive nozzle 35 injecting a drive fluid, a bell mouth 36 guiding the driven fluid involved in the drive fluid injected by the drive nozzle 35, a throat 37 mixing the drive fluid and driven fluid from the bell mouth 36, a diffuser 38 provide in a downstream side of the throat 37, and delivers the mixed fluid from the diffuser 38 to a core lower part plenum. The drive nozzle 35 has a gap H provided between a nozzle mouth thereof and the bell mouth 36. The throat 37 is provided with a tapered pipe part 45 having small expansion angles θt from the diffuser 38 at least in a downstream thereof.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种提高泵效率的喷射泵,以提高核电厂的经济效率和冷却材料循环流量。 解决方案:该喷射泵27设置有喷射驱动流体的驱动喷嘴35,引导由驱动喷嘴35喷射的驱动流体中涉及的被驱动流体的喇叭口36,混合驱动流体和驱动流体的喉部37 来自喇叭口36的流体,扩散器38提供在喉部37的下游侧,并将混合流体从扩散器38输送到芯下部增压室。 驱动喷嘴35具有设置在其喷嘴口和喇叭口36之间的间隙H.喉部37至少在其下游设置有从扩散器38具有小扩张角θt的锥形管部分45。 版权所有(C)2005,JPO&NCIPI
    • 2. 发明专利
    • Inlet structure for coolant core
    • 冷却核心入口结构
    • JP2008157972A
    • 2008-07-10
    • JP2008076818
    • 2008-03-24
    • Toshiba Corp株式会社東芝
    • FUJII TOSHIHIROFUJITA SHIHOMOTOTANI AKIRAKOMITA HIDEOAKIBA YOSHIYUKINARABAYASHI SUNAOUKAI MASARUMOROOKA SHINICHIYAMAMOTO TETSUZOKATO TATSUMA
    • G21C15/02
    • Y02E30/40
    • 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
    • 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
    • 5. 发明专利
    • Fuel assembly
    • 燃油总成
    • JP2009020121A
    • 2009-01-29
    • JP2008265246
    • 2008-10-14
    • Toshiba Corp株式会社東芝
    • SHIRAKAWA TAKEETSUMOROOKA SHINICHINARABAYASHI SUNAOMITSUTAKE TORU
    • G21C3/30G21C3/32
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To achieve both the increase in a breeding ratio and a negative void reactivity, and to efficiently accumulate the voids.
      SOLUTION: In the fuel assembly including a channel box 1, a plurality of fuel rods 2 arranged in the channel box 1 loaded with a fissile material, a neutron leakage tube 3 arranged between the plurality of fuel rods 2, and a heating element 39 by neutron absorption or gamma ray absorption with a plurality of flow passage holes provided at a lower part of the neutron leakage tube, the neutron leakage tube 3 is provided with an upper neutron leakage tube 44 and a lower neutron leakage tube 45 having a two-stage structure in a height direction. The upper and lower neutron leakage tubes 44, 45 include therein inner tubes annularly surrounding vertical cooling material flow passages 47, 49, void accumulation parts 46, 48 are formed at the outsides of the inner tubes, and the diameter of the cooling material flow passage of the upper neutron leakage tube is smaller than that of the lower neutron leakage tube.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了实现繁殖率的增加和空隙反应性的负载,并且有效地积累空隙。 解决方案:在包括通道箱1的燃料组件中,布置在容纳易裂变材料的通道箱1中的多个燃料棒2,布置在多个燃料棒2之间的中子泄漏管3和加热 元件39通过中子吸收或伽马射线吸收与设置在中子泄漏管的下部的多个流动通道孔,中子泄漏管3设置有上中子泄漏管44和下中子泄漏管45,其具有 两级结构在高度方向。 上下中子泄漏管44,45包括环形的围绕垂直冷却材料流动通道47,49的内管,在内管的外侧形成空隙累积部分46,48,并且冷却材料流动通道 的上中子泄漏管小于下中子泄漏管。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Heat-resistant insulation coil and its manufacturing method
    • 耐热绝缘线圈及其制造方法
    • JP2006253272A
    • 2006-09-21
    • JP2005065210
    • 2005-03-09
    • Takayuki TeraiToshiba Corp隆幸 寺井株式会社東芝
    • KAMEDA TSUNEJINARABAYASHI SUNAOYONEDA ERIKOFUKUI KAZUYATERAI TAKAYUKI
    • H01F5/06
    • PROBLEM TO BE SOLVED: To provide a heat-resistant insulation coil which has little defects such as cracks at the time of manufacturing and is remarkably improved in durable temperature (heat resistance) and long-term reliability, and also to provide its manufacturing method.
      SOLUTION: The heat-resistant insulation coil 6 has a winding portion made by winding a conductive wire 2 formed with a heat-resistant insulation portion 5. The heat-resistant insulation portion 5 consists of a first insulation layer 3 formed of ceramic felt which is formed on the outer periphery of the conductive wire 2, and a second insulation layer 4 formed on the outer periphery of the first insulation layer 3. The second insulation layer 4 is formed of at least one kind of material selected among ceramic coating, ceramic felt, and ceramic long-fibre braid.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种耐热绝缘线圈,其在制造时几乎没有诸如裂纹的缺陷,并且耐久温度(耐热性)和长期可靠性显着提高,并且还提供其 制造方法。 解决方案:耐热绝缘线圈6具有通过缠绕形成有耐热绝缘部分5的导线2而制成的绕组部分。耐热绝缘部分5由陶瓷形成的第一绝缘层3 形成在导线2的外周上的毡和形成在第一绝缘层3的外周上的第二绝缘层4.第二绝缘层4由选自陶瓷涂层中的至少一种材料形成 ,陶瓷毡,陶瓷长纤维编织物。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Reactor containment cooling facility and nuclear power plant
    • 反应器容器冷却设备和核电厂
    • JP2007051929A
    • 2007-03-01
    • JP2005237132
    • 2005-08-18
    • Toshiba Corp株式会社東芝
    • TOBIMATSU TOSHIMIIWAKI CHIKAKOAOKI KAZUYOSHINARABAYASHI SUNAOYOKOBORI SEIICHIKOJIMA YOSHIHIROAKINAGA MAKOTO
    • G21C9/004G21C15/18
    • G21C9/004G21C15/18Y02E30/40
    • PROBLEM TO BE SOLVED: To reduce steam pressure in a reactor containment, using a drywell cooling unit during emergency.
      SOLUTION: The cooling facility has a drywell cooler casing 14 provided in the reactor containment 1 and having an opening in upper surface and an opening/closing means 38 in the lower part, heat transfer pipes 13 arranged at the upper part in the drywell cooler casing 14 of which through the inside, cooling water passes, a cooling water forced circulation system 32a for sending cooling water from outside the reactor containment 1 into the heat transfer pipes 13 with a pump 32, a blower 16 for sending the air around the heat transfer pipes 13 in the reactor containment inside/outside the drywell cooler casing 14, an external pool vessel 35 arranged outside the reactor containment 1 and above the heat transfer pipes 13 and storing cooling water, and a gravity utilizing cooling system 36 constituted so as to supply the cooling water stored in the external pool 35 in the heat transfer pipes 13 with the gravity as the driving force.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了减少反应堆容器中的蒸汽压力,在紧急情况下使用干井冷却装置。 解决方案:冷却设备具有设置在反应堆容器1中并具有上表面的开口的干井冷却器壳体14和下部中的开/关装置38,布置在上部的传热管13 干式冷却器套管14,其内部通过冷却水通过冷却水强制循环系统32a,用于将冷却水从反应堆容器1的外部送出到具有泵32的传热管13中;用于将空气送出的鼓风机16 在干井冷却器壳体14的内部/外部的反应堆容纳物中的传热管13,布置在反应容器1的外侧并且在传热管13的上方并存储冷却水的外部池容器35以及由此构成的重力利用冷却系统36 以重力作为驱动力将存储在传热管13中的外部池35中的冷却水供给。 版权所有(C)2007,JPO&INPIT