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    • 7. 发明专利
    • Ejector/mixer nozzle for noise reduction
    • 喷射器/搅拌器喷嘴用于减少噪音
    • JP2011137453A
    • 2011-07-14
    • JP2010283893
    • 2010-12-21
    • General Electric Co ゼネラル・エレクトリック・カンパニイGeneral Electric Company
    • ZHANG HUABALL DAVID WESLEY
    • F02C7/045F02C7/08
    • F02C7/045F01D25/30F01N1/14F02C7/04F02C7/08F02K1/34F02K1/36F02K1/386F02K1/44F02K1/46
    • PROBLEM TO BE SOLVED: To reduce noise of a gas turbine by an ejector/mixer noise reduction nozzle for improving mixing of high temperature air in the turbine without using expensive components.
      SOLUTION: An inlet bleed heat (IHB) system of the gas turbine includes a compressor discharge side extraction manifold 12 extracting compressor discharge air, an inlet bleed heat manifold 18 receiving the compressor discharge air, and a plurality of acoustic dispersion nozzles 26 disposed at an outlet end of the inlet bleed heat manifold and reducing a velocity of the compressor discharge air in the inlet bleed heat manifold. Noise is generated by a shearing action between the surrounding atmosphere and air jets from orifices. For example, when an air jet velocity is slowed using a multi-stage ejector/mixer, noise can be reduced.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过喷射器/混合器降噪喷嘴来降低燃气轮机的噪音,以改善涡轮机中的高温空气的混合,而不使用昂贵的部件。 解决方案:燃气轮机的入口放热(IHB)系统包括:压缩机排出侧抽取歧管12,其提取压缩机排放空气;接收压缩机排放空气的入口排放热歧管18;以及多个声音分散喷嘴26 设置在入口放气热歧管的出口端,并降低入口放气热歧管中的压缩机排出空气的速度。 噪音是由周围大气和喷气口之间的剪切作用产生的。 例如,当使用多级喷射器/混合器使喷气速度减慢时,可以降低噪声。 版权所有(C)2011,JPO&INPIT