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引起湿蒸气汽轮机叶片侵蚀的大水滴是由于雾滴在汽轮机叶片表面上的扩散沉积而产生的．因此，雾滴扩散沉积率的大小对大水滴在湿蒸气中所占的比例及叶片的侵蚀速度有很大的影响．采用边界层内质量传递与动量传递的比拟理论及其半经验关系式，计算并分析了湿蒸气汽轮机叶栅通道内不同尺寸雾滴的扩散沉积特性，以及压力、汽流速度和叶栅节距等参数对扩散沉积率的影响．计算与分析的结果对汽轮机防蚀装置的设计具有一定的参考意义
Large drops of water that cause erosion of the wet steam turbine blades result from the diffusive deposition of mist on the surface of the turbine blades. Therefore, the size of the droplet deposition rate of droplets on the large water droplets in the proportion of wet steam and blade erosion rate has a great impact. Based on the comparison theory of mass transfer and momentum transfer in the boundary layer and its semi-empirical relationship, the diffusion and deposition characteristics of different sizes of droplets in the cascade of wet steam turbine are calculated and analyzed, as well as the pressure, steam flow velocity and blade pitch Effect of Equal Parameters on Diffusion Sedimentation Rate. Calculation and analysis of the results of the design of turbine anti-corrosion device has a certain reference value