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    • 7. 发明专利
    • ジェットポンプの振動抑制装置、ジェットポンプおよびその振動抑制方法
    • 喷射泵振动抑制装置,喷射泵及其振动抑制方法
    • JP2014199243A
    • 2014-10-23
    • JP2013256010
    • 2013-12-11
    • 株式会社東芝Toshiba Corp
    • WATANABE KATSUNOBUSHIOYAMA TSUTOMUKINUGASA KUNIHIKOMASUDA YUKIMATSUKAWA KOZUEMORI HIROSHIMINATO YUKI
    • G21C15/25G21C15/243
    • F04F5/10F04F5/46F04F5/463F04F5/464F04F5/54G21C15/25Y02E30/31
    • 【課題】ジェットポンプの流動特性を維持し、すべり継ぎ手のすき間流れに起因した自励振動を抑制することができるジェットポンプの振動抑制技術である。【解決手段】本発明に係るジェットポンプの振動抑制装置は、沸騰水型原子炉の原子炉圧力容器内に設けられ、ライザー管に連結されるインレットミキサー管33と、このインレットミキサー管33にすべり継ぎ手により連結されるディフューザ34とを備え、ディフューザ内周面とインレットミキサー管外周面とによりすべり継ぎ手40のすき間流路48が形成され、原子炉圧力容器内の冷却水を強制循環させるジェットポンプにおいて、ディフューザ34上に載置され、下方の内径よりも上方の内径が小さい形状を有し、その内周面とインレットミキサー管33外周面とにより、ディフューザ34の上端よりも上方に延長すき間流路を形成するエクステンションスリーブ53とが備えられ、延長すき間流路51は、エクステンションスリーブ53の形状によって下方より上方が狭い形状に形成されたことを特徴とするものである。【選択図】図5
    • 要解决的问题:提供一种喷射泵振动抑制技术,其能够保持喷射泵的流动特性,并抑制由滑动接头的间隙中的流动引起的自激振动。解决方案:根据 提供在沸水反应堆的反应堆压力容器中的本发明包括:连接到提升管的入口混合器管33; 以及与滑动接头连接到入口混合管33的扩散器34。 喷射泵在由扩散器的内周面和入口混合管的外周面形成的滑动接头40的间隙中形成有流路48,迫使反应器压力容器中的冷却水循环, 包括放置在扩散器34上的延伸套筒53,其具有在上侧的内径小于下侧的内径的形状,并且形成延伸的间隙流动路径, 扩散器34由延伸套筒的内周面和入口混合管33的外周面形成。延伸间隙流路51形成为其上侧比其下侧窄的形状,由于形状 的延伸套筒53。
    • 8. 发明专利
    • Heat exchanger
    • 热交换器
    • JP2014098507A
    • 2014-05-29
    • JP2012250526
    • 2012-11-14
    • Toshiba Corp株式会社東芝
    • KATSUKI RYOJIABE SATORUIWAKI CHIKAKOSHIOYAMA TSUTOMUKATAYAMA KENJIROMOCHIDA HIROYUKIKOMATSU YUTA
    • F28D15/02G21C15/18G21C15/257G21C19/07
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a heat exchanger that uses free convection and that does not require an excessive space.SOLUTION: According to embodiments, in a heat exchanger including a heat pipe emitting heat generated from a cooling target device to outside, the heat pipe includes: an evaporation unit that is provided near the cooling target device and that evaporates a working fluid input in a liquid state; a condensation unit that condenses the working fluid input in a gaseous state after making heat exchange with outside air; a first heat insulating tube feeding the working fluid in the gaseous state from the evaporation unit to the condensation unit; and a second heat insulating tube feeding the working fluid in the liquid state from the condensation unit to the evaporation unit. The condensation unit includes: a plurality of heat transfer tubes 13 arranged in a zigzag fashion, forming a plurality of lines vertically, and extending horizontally in parallel to one another; and a plurality of plate fins 14 arranged outside of the heat transfer tubes 13 and each spreading in a direction perpendicular to an axis.
    • 要解决的问题:提供一种使用自由对流并且不需要过多空间的热交换器。解决方案:根据实施例,在包括从冷却目标装置发射到外部的热量的热管中的热交换器中,热量 管道包括:蒸发单元,其设置在冷却目标装置附近并使液态的工作流体输入蒸发; 冷凝单元,其在与外部空气进行热交换之后将工作流体输入以气态冷凝; 第一绝热管,其将从气态的工作流体从所述蒸发单元供给到所述冷凝单元; 以及将处于液态的工作流体从冷凝单元向蒸发单元供给的第二绝热管。 冷凝单元包括:以锯齿状排列的多个传热管13,其形成多个垂直线,并且彼此平行地水平延伸; 以及布置在传热管13的外部并且各自沿垂直于轴线的方向扩展的多个板状散热片14。
    • 9. 发明专利
    • Active silencer
    • JP2004354770A
    • 2004-12-16
    • JP2003153370
    • 2003-05-29
    • Toshiba Corp株式会社東芝
    • EBATO AKIHIKONISHIMURA OSAMUSHIOYAMA TSUTOMU
    • E01F8/00G10K11/178
    • PROBLEM TO BE SOLVED: To provide an active silencer for attaining control effect stabilized without deteriorating sound decrease effect even to a moving sound generating part.
      SOLUTION: The active silencer comprises a reference microphone 11, correction microphones 12a and 12b arranged on both sides along a direction extending a sound shielding wall K of the reference microphone 11, a control speaker 15 for generating a control sound interfering with a transmitting sound, a control microphone 16 for detecting the sound pressure level of a transmission sound, delay circuits 13a and 13b for delaying a correction signal from the correction microphones 12a and 12b for a prescribed time, a reference signal calculator 14 for decreasing a delayed correction signal from the reference signal from the reference microphone 11 and calculating a new reference signal, and a control circuit 20 for generating a control sound at an amplitude and a phase to minimize a signal detected with a control microphone 16 on the basis of the new reference signal and the signal detected with the control microphone.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 10. 发明专利
    • PIPE SYSTEM WITH THROTTLE ELEMENT, MANUFACTURE THEREOF, AND THROTTLE VALVE
    • JP2000314484A
    • 2000-11-14
    • JP12492199
    • 1999-04-30
    • TOSHIBA CORP
    • KAWABATA MOTOOSHIOYAMA TSUTOMU
    • F16K3/32F16L3/00
    • PROBLEM TO BE SOLVED: To prevent large pressure pulsations from being generated in a pipe by forming the outer circumferential face of a valve element into a continuously tapered state. SOLUTION: A throttle valve 10 is provided with a cylindrical cage 12 having a fluid flowing hole 11 bored in its circumferential wall, a reciprocating valve element 13 guided in the case 12 and having the outer circumferential face formed into a spindle shape, and a valve seat 14 arranged in the outer circumferential side of the valve element 13 and forming the throttle part of the fluid. The outer circumferential face 13a of the valve element 13 is formed into a tapered shape as a whole. Therefore, when a valve inlet flow b1 flowing from a hole 11 of the cage 12 passes through a seat part 16, or a clearance between the outer circumferential face 13a of the valve element 13 and the valve seat 14 and flows into a downstream cage as a valve outlet flow b2, the passing area of the seat part 16 can be changed continuously, because the profile part of the valve element 13 is formed into a smooth tapered state, so that large pressure pulsations can be prevented from generated in an non-illustrated pipe connected thereto in the downstream.