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    • 9. 发明授权
    • Mixer for cooling and sealing air system of turbomachinery
    • 涡轮机冷却和密封空气系统混合器
    • US07823390B2
    • 2010-11-02
    • US11711306
    • 2007-02-27
    • Ravi Praveen S. EluripatiDavid Wesley Ball, Jr.Kenneth Neil WhalingHua Zhang
    • Ravi Praveen S. EluripatiDavid Wesley Ball, Jr.Kenneth Neil WhalingHua Zhang
    • F02C6/04
    • F02C7/185F01D11/04F01D25/12F02C3/06F02C3/32
    • A system is provided for directing air from plural compressor ports to provide cooling and/or sealing air to an associated turbine site. A first flow from a pressure stage of the compressor has a first pressure and temperature. A second flow from another pressure stage of the compressor has a second pressure and temperature. The first and second pressures/temperatures are different. An ejector has two inlets for receiving the first and second flows, and output for combining the first and second flows into a third flow. The pressure and temperature of the third flow are different from the first and second pressures and temperatures. A bypass line is connected between the first flow and the third flow, and provides a bypass flow. A mixer combines the bypass flow and the third flow into a fourth flow. The fourth flow has a pressure and temperature intermediate the pressure and temperature of the bypass flow and the third flow. The mixer comprises inner and outer sections. The inner section is generally cylindrical in cross section and has a plurality of holes therein. The angle between the direction of the bypass flow and the direction of the third flow, when the bypass flow meets the third flow in the mixer, is less than about 90 degrees.
    • 提供一种用于引导来自多个压缩机端口的空气以向相关联的涡轮机位置提供冷却和/或密封空气的系统。 来自压缩机的压力级的第一流量具有第一压力和温度。 来自压缩机的另一压力级的第二流量具有第二压力和温度。 第一和第二压力/温度是不同的。 喷射器具有用于接收第一和第二流的两个入口,并且输出用于将第一和第二流合并成第三流。 第三流量的压力和温度与第一和第二压力和温度不同。 旁路管线连接在第一流和第三流之间,并提供旁路流。 混合器将旁路流和第三流合并成第四流。 第四流量的压力和温度介于旁路流量和第三流量的压力和温度之间。 混合器包括内部和外部部分。 内部截面通常为圆柱形,其中具有多个孔。 当旁通流量与混合器中的第三流量相交时,旁路流动方向与第三流动方向之间的角度小于约90度。