摘要
目的是讨论弯扭叶片在大功率汽轮机低压缸末级的工程应用问题。弯扭叶片的通流设计采用全三元设计系统进行。通过对１ｍ 级叶片的气动分析，表明弯扭成型可以有效地调整等压线的分布形状，同时也应注意不同弯曲度所带来的负面效应，在设计中优化选取适当的弯曲度。
The article proposes the engineering application of twisted and bowed blade in the LP last stage of large steam turbine. Full 3D design system is used for the twisted and bowed blade. Through the aerodynamic analysis of a 1m twisted and bowed blade, it is possible to adjust the shape of the isobar by twisted and bowed molding. At the same time, different camber will be bring on negative effect. It is important to choose the proper camber in the design.
出处
《上海汽轮机》
1999年第4期1-6,22,共7页
Shanghai Turbine
关键词
弯扭叶片
全三元
气动性能
汽轮机
效率
流场
twisted and bowed blade
full 3D
aerodynamic performance
steam turbine efficiency
