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    • 1. 发明申请
    • Axial Flow Machine
    • 轴流机
    • US20150260042A1
    • 2015-09-17
    • US14413725
    • 2012-07-11
    • Noriyo NishijimaAkira EndoKatsutoshi KobayashiKazuyuki Yamaguchi
    • Noriyo NishijimaAkira EndoKatsutoshi KobayashiKazuyuki Yamaguchi
    • F01D1/02F01D5/02F01D11/08F01D9/04F01D25/24F01D11/02F01D1/04F01D5/12
    • F01D11/02F01D5/225F01D11/08F05D2220/30F05D2220/31F05D2240/12F05D2240/24
    • The invention provides an axial flow machine that effectively reduces the unstable hydrodynamic force induced by leakage flow and thereby prevents unstable vibrations.A steam turbine comprises: a ring-shaped cover 6 connected to the outer circumferential side of a rotor blade row 4; and a ring-shaped concave section 12 provided on an inner circumferential surface 8 of a casing 1 for housing the cover 6. A narrow passage 15 is formed between an outer circumferential surface 13 of the cover 6 and a bottom surface 14 of the concave section 12. A narrow inflow passage 18 is formed between an upstream lateral surface 16 of the cover 6 and an upstream lateral surface 17 of the concave section 12. A narrow outflow passage 21 is formed between a downstream lateral surface 19 of the cover 6 and a downstream lateral surface 20 of the concave section 12. Between the narrow inflow passage 18 and the narrow passage 15 lies an expanded inflow passage 22. The expanded inflow passage 22 has a substantially uniform structure in a circumferential direction and is formed such that it is located on the more outer circumferential side than the bottom surface 20 of the concave section 12 and such that it is located upstream side in terms of the rotor's axial direction with respect to the upstream lateral surface 17 of the concave section 12.
    • 本发明提供了一种有效地减少由泄漏流引起的不稳定流体动力的轴流机,从而防止不稳定的振动。 蒸汽轮机包括:连接到转子叶片排4的外圆周侧的环形盖6; 以及设置在用于容纳盖6的壳体1的内周面8上的环状的凹部12.在盖6的外周面13和凹部的底面14之间形成狭窄的通路15 在盖6的上游侧表面16和凹部12的上游侧表面17之间形成狭窄的流入通道18.窄的流出通道21形成在盖6的下游侧表面19和 凹入部分12的下游侧面20之间。狭窄的流入通道18和窄通道15之间设有扩张的流入通道22.扩张的流入通道22在圆周方向上具有基本上均匀的结构,并且形成为使得其位于 在比凹部12的底面20更外侧的侧面上,并且相对于t为转子的轴向方向而位于上游侧 它是凹部12的上游侧表面17。
    • 4. 发明授权
    • Exhaust system for steam turbine
    • 蒸汽轮机排气系统
    • US09033656B2
    • 2015-05-19
    • US13343180
    • 2012-01-04
    • Shunsuke MizumiKoji OgataTakeshi KudoNoriyo NishijimaYoshiaki Onda
    • Shunsuke MizumiKoji OgataTakeshi KudoNoriyo NishijimaYoshiaki Onda
    • F01D25/24F01D25/30
    • F01D25/30F01D25/24F05D2250/52F05D2250/73
    • An exhaust system for a steam turbine provided with an improved annular flow guide in a high or intermediate turbine. The improved flow guide reduces flow turbulence in an exhaust hood and reduces pressure loss to thereby improve turbine plant efficiency.The shape (vertically symmetric) of a flow guide 5A according to a conventional technology was modified into the shape (vertically asymmetric) of a flow guide 5 such that the length of a downstream flow guide portion 5d is greater than that of a upstream flow guide portion 5u. Numerical analyses were performed to find the optimum flow guide occupation ratio of the conventional technology and the corresponding total pressure loss coefficient. The obtained values were used as reference values. Further, the flow guide occupation ratio of the upstream flow guide portion 5u was set at 0.4 and the flow guide occupation ratio of the downstream flow guide portion 5d was set at 0.7; at values where the total pressure loss coefficient becomes lower than the reference value. The rectification effect of the flow guide can thus be enhanced.
    • 一种用于蒸汽轮机的排气系统,其在高级或中级涡轮机中设置有改进的环形流动引导件。 改进的流动引导件减少排气罩中的流动湍流并减少压力损失,从而提高涡轮机厂的效率。 根据传统技术的流动引导件5A的形状(垂直对称)被修改为导流器5的形状(垂直不对称),使得下游流动引导部分5d的长度大于上游流动引导件 部分5u。 进行数值分析,找出常规技术的最佳流量指数占有率和相应的总压力损失系数。 将获得的值用作参考值。 另外,将上游侧流动引导部5u的流动导向占有率设定为0.4,将下游侧流动引导部5d的流动导向占有率设定为0.7, 其中总压力损失系数变得低于参考值。 因此可以提高导流管的整流效果。
    • 8. 发明授权
    • Cooling system and electronic equipment including cooling system
    • 冷却系统和电子设备包括冷却系统
    • US08240166B2
    • 2012-08-14
    • US12430153
    • 2009-04-27
    • Noriyo NishijimaShigeo OhashiNariaki ShigyoTatsuo Morita
    • Noriyo NishijimaShigeo OhashiNariaki ShigyoTatsuo Morita
    • F25D23/12
    • G03B21/16
    • An electronic equipment includes a cooling system using boiling and condensation of a refrigerant, especially stabilizes the cooling performance, and reduces the influence which vibration accompanying phase change of boiling and condensation gives to the electronic equipment. Electronic equipment includes a cooling system including a cooling part which cools heat generating from a heat generator such as a heat generating component by using boiling of a refrigerant and is thermally connected to the heat generator such as the heat generating element, a heat radiation part which radiates heat absorbed by the refrigerant in the cooling part by condensation, a refrigerant drive part for delivering the condensed refrigerant to the cooling part again, and piping which fluidly connects them, and the electronic equipment includes preliminary heating means for heating the refrigerant, which flows to the cooling part from the refrigerant drive part, between the refrigerant drive part and the cooling part.
    • 电子设备包括使用制冷剂的沸腾和冷凝的冷却系统,特别是稳定冷却性能,并且减少伴随着冷凝相变的振动对电子设备的影响。 电子设备包括冷却系统,其包括冷却部件,该冷却部件通过使用沸腾的制冷剂来冷却来自诸如发热部件的发热部件的发热的热量,并且与发热元件等发热体热连接;热辐射部件 通过冷凝来散发由冷却部中的制冷剂吸收的热量,再次将冷凝后的制冷剂输送到冷却部的制冷剂驱动部以及流体连接它们的管路,电子设备包括用于加热流过的制冷剂的预热装置 从制冷剂驱动部分到制冷剂驱动部分和冷却部分之间的冷却部分。
    • 9. 发明申请
    • Exhaust System for Steam Turbine
    • 蒸汽轮机排气系统
    • US20120183397A1
    • 2012-07-19
    • US13343180
    • 2012-01-04
    • Shunsuke MIZUMIKoji OgataTakeshi KudoNoriyo NishijimaYoshiaki Onda
    • Shunsuke MIZUMIKoji OgataTakeshi KudoNoriyo NishijimaYoshiaki Onda
    • F01D25/30
    • F01D25/30F01D25/24F05D2250/52F05D2250/73
    • An exhaust system for a steam turbine provided with an improved annular flow guide in a high or intermediate turbine. The improved flow guide reduces flow turbulence in an exhaust hood and reduces pressure loss to thereby improve turbine plant efficiency.The shape (vertically symmetric) of a flow guide 5A according to a conventional technology was modified into the shape (vertically asymmetric) of a flow guide 5 such that the length of a downstream flow guide portion 5d is greater than that of a upstream flow guide portion 5u. Numerical analyses were performed to find the optimum flow guide occupation ratio of the conventional technology and the corresponding total pressure loss coefficient. The obtained values were used as reference values. Further, the flow guide occupation ratio of the upstream flow guide portion 5u was set at 0.4 and the flow guide occupation ratio of the downstream flow guide portion 5d was set at 0.7; at values where the total pressure loss coefficient becomes lower than the reference value. The rectification effect of the flow guide can thus be enhanced.
    • 一种用于蒸汽轮机的排气系统,其在高级或中级涡轮机中设置有改进的环形流动引导件。 改进的流动引导件减少排气罩中的流动湍流并减少压力损失,从而提高涡轮机厂的效率。 根据传统技术的流动引导件5A的形状(垂直对称)被修改为导流器5的形状(垂直不对称),使得下游流动引导部分5d的长度大于上游流动引导件 部分5u。 进行数值分析,找出常规技术的最佳流量指数占有率和相应的总压力损失系数。 将获得的值用作参考值。 另外,将上游侧流动引导部5u的流动导向占有率设定为0.4,将下游侧流动引导部5d的流动导向占有率设定为0.7, 其中总压力损失系数变得低于参考值。 因此可以提高导流管的整流效果。