为了探究平衡态凝结与非平衡态凝结对汽轮机内部流动特征、湿度分布以及整机性能的影响，以某型十五级汽轮机为研究对象，针对在不同运行负荷下的汽轮机整机叶栅流动开展了平衡态与非平衡态的数值分析对比研究。研究结果表明：在不同运行负荷下，非平衡态凝结模型获得的整机性能略低于平衡态凝结模型的计算结果，但二者并没有显著差异；此外，相较于平衡态凝结，非平衡态凝结中首次出现蒸汽工质凝结的位置更接近汽轮机出口低压级叶栅。

In order to investigate the effects of equilibrium condensation and non-equilibrium condensation on the flow characteristics of steam turbine and the turbine performance, the numerical analysis of equilibrium and non-equilibrium flow of a 15-stage steam turbine was carried out with different operating loads. The results show that the performance of the non-equilibrium condensation model is slightly lower than that of the equilibrium condensation model with different operating loads, but there is no significant difference between them. In addition, compared with equilibrium condensation, the position where the working medium condenses for the first time in non-equilibrium condensation is closer to the low-pressure stage.