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介绍了一种高参数、小功率汽轮机的喷嘴组结构及其工艺概述。该喷嘴组包括外环支撑体、内环支撑体和介于它们之间的导叶片和隔筋块,只有小于180°的一个弓形弧段,具有多个周向布置的导叶片和隔筋块,导叶片、隔筋块、内环和外环是分体结构,喷嘴组通过T形槽安装在前气缸上。从生产和运行情况看,达到了很好的设计目的,对于进汽量很小、参数很高的汽轮机的喷嘴组设计、制造和应用都有很好的借鉴作用。
A kind of high parameter, small power turbine nozzle group structure and its process overview are introduced. The nozzle assembly includes an outer ring support body, an inner ring support body, and a guide vane and a spacer block therebetween with an arcuate arc of less than 180 °, a plurality of circumferentially arranged guide vanes and spacer blocks The guide vanes, the spacer blocks, the inner ring and the outer ring are separate structures, and the nozzle group is installed on the front cylinder through the T-shaped groove. From the production and operation of the situation, to achieve a good design purpose, for a small intake, high parameters of the turbine nozzle group design, manufacture and application of a good reference.