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1. 发明授权

US5351474A Combustor external air staging device 失效
标题翻译：燃烧器外部空气分级装置
公开(公告)号：US5351474A
公开(公告)日：1994-10-04
申请号：US75360
申请日：1993-04-16
申请人： Gale V. Slocum , Albert Myers , Kenneth W. Beebe
发明人： Gale V. Slocum , Albert Myers , Kenneth W. Beebe
IPC分类号： F02C3/06 , F02C3/26 , F02C9/18 , F23R3/26 , F02C9/00
CPC分类号： F23R3/26
摘要： A gas turbine combustion system includes a plurality of combustors within a pressure vessel, each combustor including a combustion liner defining a combustion chamber having a reaction zone and a dilution zone, the liner in the dilution zone provided with a plurality of circumferentially spaced dilution air feed holes. A flow shield surrounds each combustion liner in radially spaced relation thereto for feeding compressor discharge air to the combustion chamber. Air staging apparatus directly controls the amount of compressor discharge air fed into each combustion chamber dilution zone via the dilution air feed holes. The apparatus includes a plurality of pressure vessel extraction ports and associated conduits for introducing compressor discharge air into a first manifold common to the plurality of combustors; a dilution air control valve located between each extraction port and the first manifold; and a second, annular manifold surrounding the flow shield and including feed tubes connecting the second manifold to each of the dilution air feed holes in the combustion liner.
摘要翻译：燃气轮机燃烧系统包括在压力容器内的多个燃烧器，每个燃烧器包括限定具有反应区和稀释区的燃烧室的燃烧衬套，所述稀释区中的衬里设置有多个周向间隔开的稀释空气进料孔。流动屏蔽围绕每个燃烧衬套以与其径向间隔的关系围绕，用于将压缩机排放空气供给到燃烧室。空气分级设备直接控制通过稀释空气供给孔供给到每个燃烧室稀释区域的压缩机排放空气的量。该装置包括多个压力容器抽出口和相关导管，用于将压缩机排出空气引入到多个燃烧器共同的第一歧管中; 位于每个抽出口和第一歧管之间的稀释空气控制阀; 以及围绕所述流动屏蔽件的第二环形歧管，并且包括将所述第二歧管连接到所述燃烧衬套中的每个所述稀释空气供给孔的进料管。

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