Mixer for cooling and sealing air system of turbomachinery
    1.
    发明申请
    Mixer for cooling and sealing air system of turbomachinery 失效
    涡轮机冷却和密封空气系统混合器

    公开(公告)号:US20080202092A1

    公开(公告)日:2008-08-28

    申请号:US11711306

    申请日:2007-02-27

    IPC分类号: F02C7/12

    摘要: 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.

    摘要翻译: 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。

    Ejector/Mixer Nozzle for Noise Reduction
    4.
    发明申请
    Ejector/Mixer Nozzle for Noise Reduction 有权
    喷射器/搅拌机喷嘴降噪

    公开(公告)号:US20110162383A1

    公开(公告)日:2011-07-07

    申请号:US12651585

    申请日:2010-01-04

    IPC分类号: F02C6/08 F01D25/04

    摘要: An inlet bleed heat system in a gas turbine includes a compressor discharge extraction manifold that extracts compressor discharge air, an inlet bleed heat manifold receiving the compressor discharge air, and a plurality of acoustic dispersion nozzles disposed at an output end of the inlet bleed heat manifold that reduce a velocity of the compressor discharge air in the inlet bleed heat manifold. Noise is generated from the shearing action between the surrounding atmosphere and air jets from orifices. When the air jet velocity is slowed using, for example, a multi-stage ejector/mixer, noise can be abated.

    摘要翻译: 燃气轮机中的入口放气加热系统包括提取压缩机排出空气的压缩机排放抽取歧管,接收压缩机排出空气的入口放气歧管和设置在入口放气歧管的输出端的多个声音分散喷嘴 这降低了入口放气歧管中的压缩机排放空气的速度。 噪音是由周围大气与喷气口之间的剪切作用产生的。 当使用例如多级喷射器/混合器使空气喷射速度变慢时,可以降低噪声。

    Inlet bleed heat system with ejector/mixer nozzles for noise reduction
    5.
    发明授权
    Inlet bleed heat system with ejector/mixer nozzles for noise reduction 有权
    带喷射器/混合器喷嘴的入口放气系统,用于降噪

    公开(公告)号:US08272222B2

    公开(公告)日:2012-09-25

    申请号:US12651585

    申请日:2010-01-04

    IPC分类号: F02G3/00 F02C6/04

    摘要: An inlet bleed heat system in a gas turbine includes a compressor discharge extraction manifold that extracts compressor discharge air, an inlet bleed heat manifold receiving the compressor discharge air, and a plurality of acoustic dispersion nozzles disposed at an output end of the inlet bleed heat manifold that reduce a velocity of the compressor discharge air in the inlet bleed heat manifold. Noise is generated from the shearing action between the surrounding atmosphere and air jets from orifices. When the air jet velocity is slowed using, for example, a multi-stage ejector/mixer, noise can be abated.

    摘要翻译: 燃气轮机中的入口放气加热系统包括提取压缩机排出空气的压缩机排放抽取歧管,接收压缩机排出空气的入口放气歧管和设置在入口放气歧管的输出端的多个声音分散喷嘴 这降低了入口放气歧管中的压缩机排放空气的速度。 噪音是由周围大气与喷气口之间的剪切作用产生的。 当使用例如多级喷射器/混合器使空气喷射速度变慢时,可以降低噪声。