300MW汽轮机末级空心静叶内湿蒸汽二相流动与水滴沉积规律研究  

Study on Two-phase Flow of Wet Steam and Law of Droplet Deposition in Hollow Cascade of 300MW Steam Turbine

作　　者：赵亚芳[1] 王文华[2] 王玉璋[3] 孙弼[1] 

机构地区：[1]西安交通大学能源与动力工程学院,西安710049 [2]上海宝山钢铁集团公司,上海201900 [3]上海交通大学动力机械及工程国家教育部重点实验室,上海200030

出　　处：《汽轮机技术》2004年第2期113-115,141,共4页Turbine Technology

摘　　要：基于利用控制容积法求解Reynolds时均的N-S方程、κ-ε湍流模型和Lagrange方法等模型,分析了空心静叶栅内部的二维湿蒸汽汽液两相流场和不同粒径的水滴沉积规律、沉积位置,同时在沉积位置开2种宽度、3个方向和不同数量的缝隙分别分析了抽吸和吹除两种方法对叶栅通道流场的影响以及去湿效果。Based on the time-averaged Reynolds N-S equations solved by using the control volume method, κ-ε turbulent mode and Lagrange approach and so on, 2D wet steam two-phase flow and the movement rule and deposition position of droplets in hollow cascade are analyzed. When the apertures with different widths, different directions and different quantities are opened, the effects on the inner flow field in the cascade passage and the removal water performances are investigated.

关 键 词：空心静叶栅 水滴沉积 两相流 边界层 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]