后部加载叶型的气动优化设计  

Aerodynamic Optimum Design of Rear-Loaded Profile

作　　者：张利刚[1] 韩万金[1] 

机构地区：[1]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《节能技术》2004年第2期15-16,共2页Energy Conservation Technology

摘　　要：本文对哈尔滨汽轮机有限责任公司 30万kW汽轮机静叶栅的两套改型方案进行了实验验证 ,通过对实验结果的详细分析 ,得出了决定后部加载叶型气动性能的三个主要因素 ,即前缘圆直径 ,吸力面出口逆压段梯度与逆压梯度大小的合理匹配、尾缘圆直径。实验结果表明应用“前更轻后更重”后部加载叶型的In this paper,experiments were carried out on static cascades used in 300MW steam turbine modified by Harbin Turbine Co.LTD.From the results of measurements three primary factors determining the aerodynamic performance of real-loaded were educed,that is diameter of leading edge circularity,rational matching between the gradient of reverse segment and reverse gradient on suction surface,the diameter of trailing edge circularity.Results of tests show that 73B has better aerodynamic performance.

关 键 词：汽轮机 静叶栅 后部加载 气动性能 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]