摘要
本文针对汽轮机末几级在小容积流量工况下产生脱流的特点，结合工程实例推导出一种简单近似的变工况核算方法。经实测数据初步验证，计算精度可满足工程实用要求，具有一定推广价值。
A simple and approximate method is worked out on changing working states to the characteristic of steam falling away from some back stages of a turbine in the working state of the little volume flow. In comparison with the real date of turbine tests,the method can meet the demands of practical engineering uses in accuracy.
关键词
拟似估算
蒸汽透平
变工况
turbine
little volume flow
approximate estimate
