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18 条记录 (耗时 0.023 秒)

    Boiling water reactor
    1.
    发明授权
    Boiling water reactor 失效
    沸水反应堆

    公开(公告)号：US5386440A

    公开(公告)日：1995-01-31

    申请号：US675

    申请日：1993-01-05

    申请人： Shin-ichi Kashiwai ,  Osamu Yokomizo ,  Akihito Orii ,  Koji Nishida ,  Toru Kanazawa ,  Kumiaki Moriya

    发明人： Shin-ichi Kashiwai ,  Osamu Yokomizo ,  Akihito Orii ,  Koji Nishida ,  Toru Kanazawa ,  Kumiaki Moriya

    IPC分类号： G21C3/322 ,  G21C3/32

    CPC分类号： G21C3/322 ,  G21Y2002/206 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/31 ,  Y02E30/38

    摘要： An object of the present invention is to provide a boiling water reactor wherein two phase flow instability in a fuel assembly occurs scarcely.A bottom flow path is formed beneath a partition plate which is supported by control rod driving mechanism housings in a reactor pressure vessel, and coolant guide tubes which open beneath the partition plate stands perpendicularly on the partition plate. An upper end portion of the coolant guide tube is restrained at outer periphery by a fixing portion of a square grid, and a coolant entrance of a fuel assembly is connected through to the coolant guide tube.Pressure loss of the coolant decreases and flow instability of the coolant in the fuel assembly occurs scarcely, lowering of a critical power ratio at a pump trip can be suppressed.

    摘要翻译： 本发明的目的是提供一种沸水反应器，其中几乎不发生燃料组件中的两相流不稳定性。 在反应堆压力容器内由控制棒驱动机构壳体支撑的分隔板下方形成底部流路，并且在分隔板下方开口的冷却剂引导管垂直地放置在隔板上。 冷却剂引导管的上端部通过方格栅的固定部分被限制在外周，并且燃料组件的冷却剂入口连接到冷却剂引导管。 冷却剂的压力损失减少，并且几乎不发生燃料组件中的冷却剂的流动不稳定性，可以抑制泵脱扣时的临界功率比的降低。

    Fuel assembly and fuel spacer
    3.
    发明授权
    Fuel assembly and fuel spacer 失效
    燃油组件和燃油间隔器

    公开(公告)号：US5112571A

    公开(公告)日：1992-05-12

    申请号：US510192

    申请日：1990-04-17

    申请人： Akihito Orii ,  Osamu Yokomizo ,  Yasuhiro Masuhara ,  Koji Nishida ,  Shigeto Murata ,  Shin-ichi Kashiwai ,  Kotaro Inoue ,  Yuichiro Yoshimoto

    发明人： Akihito Orii ,  Osamu Yokomizo ,  Yasuhiro Masuhara ,  Koji Nishida ,  Shigeto Murata ,  Shin-ichi Kashiwai ,  Kotaro Inoue ,  Yuichiro Yoshimoto

    IPC分类号： G21C3/322 ,  G21C3/344

    CPC分类号： G21C3/322 ,  G21C3/344 ,  Y02E30/38

    摘要： In a fuel assembly having fuel rods inserted into regularly arranged cells of a fuel spacer which keeps the fuel rods correctly spaced from one another and has spacer elements disposed in a plurality of stages in the longitudinal direction of the fuel rods, the fuel spacer comprises vanes formed on the cells in such a manner that each vane is bent from a cut formed in a part of the side wall of the cell. The vanes obliquely project into the corresponding spaces between adjacent fuel rods and allow a coolant flowing through the spaces and forming two-phase flows to generate swirling flows toward the fuel rods. The fuel spacer may alternatively comprise either thin-walled cylinders having built-in vanes or spiral vanes, which are fixed to the spacer that has not been subjected to any direct machining. Also disclosed is a fuel assembly provided with any of the above-described fuel spacers. The arrangement of the present invention enables, while assuring a sufficient strength for maintaining fuel rods in their correct position, the transfer of heat from the fuel rods to the coolant to be promoted so as to raise the allowable power level of the fuel assembly, and enables the void ratio to be lowered so as to increase the reactivity.

    摘要翻译： 在具有插入燃料间隔件的规则布置的单元中的燃料棒的燃料组件中，燃料棒将燃料棒彼此正确地间隔开并具有沿着燃料棒的纵向设置成多级的间隔元件，燃料间隔件包括叶片 形成在电池上，使得每个叶片从形成在电池的侧壁的一部分中的切口弯曲。 叶片倾斜地突出到相邻燃料棒之间的相应空间中，并允许冷却剂流过空间并形成两相流以产生朝向燃料棒的旋流。 燃料间隔器可以可选地包括具有内置叶片或螺旋叶片的薄壁圆柱体，其固定到未经受任何直接加工的间隔件。 还公开了一种具有任何上述燃料间隔件的燃料组件。 本发明的结构在确保足够的强度以保持燃料棒处于其正确位置的同时，能够将热量从燃料棒传递到冷却剂以提高燃料组件的允许功率水平， 使空隙率降低，从而提高反应性。

    Fuel assembly
    4.
    发明授权
    Fuel assembly 失效
    燃油组件

    公开(公告)号：US06735267B2

    公开(公告)日：2004-05-11

    申请号：US10227441

    申请日：2002-08-26

    申请人： Akihito Orii ,  Junichi Koyama ,  Koji Nishida ,  Masao Chaki ,  Toru Kanazawa

    发明人： Akihito Orii ,  Junichi Koyama ,  Koji Nishida ,  Masao Chaki ,  Toru Kanazawa

    IPC分类号： G21C332

    CPC分类号： G21C3/328 ,  G21Y2002/201 ,  G21Y2004/304 ,  Y02E30/38

    摘要： A fuel assembly in accordance with the present invention comprises a plurality of first fuel rods and a plurality of second fuel rods having a length shorter than a length of the first fuel rod, and these two kinds of fuel rods are arranged in a fuel rod array of 10 rows by 10 columns. Two water rods are arranged in regions capable of arranging 8 fuel rods. The second fuel rods are not arranged in the outermost tier of the fuel rod array. Which satisfies the following conditions, that is, B≧60  (Equation 1) 15≦n≦20(n: integer)  (Equation 2) Awr/Ach≦0.149  (Equation 3) Lp/Lf≧11/24  (Equation 4) Awr/Ach≧(3.00×10−4×n2+6.00×10−4×n−1.2×10−2)×(Lp/Lf−1)+1.75×10−1  (Equation 5) Awr/Ach≦(8.63×10−4×n2−6.09×10−2×n+1.33×10−1)×(Lp/Lf−8.32×10−1)  (Equation 6) where Awr is a total sum of horizontal sectional areas of said water rods, Ach is a horizontal sectional area of a coolant flow passage in a bottom portion of said fuel assembly, Lf is an effective fuel length of said first fuel rod, n is number of said second fuel rods, Lp is an effective length of said second fuel rod, and B (GWd/t) is an average burn-up.

    摘要翻译： 根据本发明的燃料组件包括多个第一燃料棒和多个第二燃料棒，其长度短于第一燃料棒的长度，并且这两种燃料棒被布置在燃料棒阵列 10行×10列。 在能够布置8个燃料棒的区域中布置两个水棒。 第二燃料棒不配置在燃料棒阵列的最外层。 其满足以下条件，即，Awr是所述水棒的水平截面积的总和，Ach是所述燃料组件的底部中的冷却剂流动通道的水平截面面积，Lf是有效燃料长度 的所述第一燃料棒的数量，n是所述第二燃料棒的数量，Lp是所述第二燃料棒的有效长度，B（GWd / t）是平均燃耗。

    Device and method for manufacturing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel
    7.
    发明授权
    Device and method for manufacturing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel 有权
    用于制造生物质的半碳化燃料的装置和方法，以及使用半碳化燃料的发电系统

    公开(公告)号：US09494313B2

    公开(公告)日：2016-11-15

    申请号：US14110340

    申请日：2012-04-06

    申请人： Hirofumi Okazaki ,  Akihito Orii ,  Tetsuma Tatsumi

    发明人： Hirofumi Okazaki ,  Akihito Orii ,  Tetsuma Tatsumi

    IPC分类号： F23B30/00 ,  C10B49/02 ,  C10L9/08 ,  C10B57/10 ,  C10B53/02 ,  C10L5/44

    CPC分类号： F23B7/002 ,  C10B49/02 ,  C10B53/02 ,  C10B57/10 ,  C10L5/44 ,  C10L9/08 ,  C10L9/083 ,  Y02E50/10 ,  Y02E50/14 ,  Y02E50/15 ,  Y02E50/30

    摘要： Provided are a device and a method for manufacturing a semi-carbonized fuel of a biomass that does not require an external heat source and is capable of suppressing adhesion of tar, condensed water, or the like to a pipe. The device includes a drying device for heating and drying a biomass, a pyrolysis device for decomposing the dried biomass, and a combustion device for supplying heat to the drying device and the pyrolysis device. The pyrolysis device is supplied with a part of a combustion exhaust gas generated in the combustion device, directly mixes the supplied combustion exhaust gas and the biomass to heat and pyrolytically decompose the biomass, and supplies a mixed gas of a generated pyrolysis gas and the combustion exhaust gas to the combustion device. The combustion device is supplied with an air for combustion, combust the supplied mixed gas, and generate the combustion exhaust gas.

    摘要翻译： 提供一种用于制造生物质的半碳化燃料的装置和方法，其不需要外部热源并且能够抑制焦油，冷凝水等与管道的粘附。 该装置包括用于加热和干燥生物质的干燥装置，用于分解干燥的生物质的热解装置，以及用于向干燥装置和热解装置供热的燃烧装置。 所述热解装置被供给在所述燃烧装置中产生的燃烧废气的一部分，直接混合所供给的燃烧废气和所述生物质，以对所述生物质进行加热和热解分解，并且将所产生的热解气体和所述燃烧的混合气体 排气到燃烧装置。 为燃烧装置供给燃烧用空气，燃烧供给的混合气体，生成燃烧废气。

    Spray Nozzle, and Combustion Device Having Spray Nozzle
    9.
    发明申请
    Spray Nozzle, and Combustion Device Having Spray Nozzle 审中-公开
    喷嘴和喷头燃烧装置

    公开(公告)号：US20130319301A1

    公开(公告)日：2013-12-05

    申请号：US13979340

    申请日：2012-01-12

    申请人： Hirofumi Okazaki ,  Koji Kuramashi ,  Hideo Okimoto ,  Akihito Orii ,  Kenichi Ochi

    发明人： Hirofumi Okazaki ,  Koji Kuramashi ,  Hideo Okimoto ,  Akihito Orii ,  Kenichi Ochi

    IPC分类号： F23D11/38 ,  F23D1/00 ,  F23K5/20 ,  B05B17/00

    CPC分类号： F23D11/38 ,  B05B17/00 ,  F23C1/10 ,  F23C2201/101 ,  F23D1/005 ,  F23D2900/11001 ,  F23K5/20

    摘要： A spray nozzle is provided with upper and lower channels and from respective surfaces, the two channels form a cross shape, and become a fuel spray hole by communication of an intersecting part. A guide member is provided, in contact with the upstream-side channel, in a position overlapped with the intersecting part with respect to the spray direction of the spray nozzle. Spray fluid is branched with the guide member from the fuel fluid duct connected to the spray nozzle, passes through the upstream-side channel, to the intersecting part, and is sprayed. The spray fluid forms opposed flows toward the intersecting part in the upstream-side channel to collide with each other at an obtuse angle of 90° or greater, then is sprayed from the intersecting part, to form a thin fan-shaped liquid film. The liquid film is divided by a shearing force from the peripheral gas, atomized into spray particles.

    摘要翻译： 喷嘴设有上通道和下通道，并且从相应的表面设置，两个通道形成十字形，并且通过相交部分的连通而成为燃料喷射孔。 与上游侧通道接触地设置有与相对于喷嘴的喷射方向与交叉部分重叠的位置的引导部件。 喷射流体通过引导构件从连接到喷嘴的燃料流体管道分支，穿过上游侧通道到达交叉部分，并被喷射。 喷射流体朝向上游侧通道中的交叉部分形成相反的流动，以90°或更大的钝角相互碰撞，然后从交叉部分喷射，形成薄的扇形液体膜。 液体膜被来自外围气体的剪切力除以雾化成喷雾颗粒。