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介绍了一种实用的空心静叶去湿缝设计方法并应用于１台核电６００ＭＷ汽轮机的末级。针对该汽轮机低压缸的工作条件及通流部分结构尺寸，分别采用流线曲率法和时间相关法计算了其末级静叶前轴向间隙内和静叶栅通道内的流场；采用经验方法估计了静叶栅前的汽流湿度分布、雾滴及二次水滴的尺寸分布以及２种水份的质量比例；采用轨迹法计算并分析了水滴在静叶栅中的运动、沉积规律；基于以上结果，确定了末级静叶去湿缝的合理布置位置、形状及尺寸。图１１参８
A practical design method of hollow stator vane dehumidification was introduced and applied to the last stage of a nuclear power 600 MW steam turbine. According to the working conditions of the low-pressure cylinder of the steam turbine and the structural dimensions of the through-flow part, the flow field in the axial clearance and the stator cascade before the final stator blade was calculated by the method of flow curvature and time correlation respectively. The steam flow distribution, the size distribution of the droplet and the secondary droplet and the mass ratio of the two kinds of water were estimated before the stationary blade cascade. The trajectory method was used to calculate and analyze the movement and deposition regularity of the droplet in the stationary blade cascade. The above results, to determine the final stage static dehumidification stitching the rational location, shape and size. Figure 11 Reference 8