优化型300MW汽轮机静叶栅对比试验研究  

Optimized 300MW Unit Guide Cascade Contrast Experimental Investigation

作　　者：李宇峰[1] 韩万金[1] 黄钢[2] 鞠凤鸣[2] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001 [2]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2004年第4期287-289,共3页Turbine Technology

摘　　要：对优化300MW汽轮机高压第九级静叶栅的73A和73B两套改型方案在冲角为-20°、0°和+20°的条件下进行了环形叶栅对比试验。实验结果表明,由于在73B中采用了先进的"后部加载"叶型,并精心选择了前后缘直径及合理匹配了出口逆压段长度与逆压梯度值,73B与73A比较,流动性能有明显提高,流动总损失降低了21.8%。In this paper, two improved schemes, 73B and 73A, high pressure No.9 guide cascade of 300mw unit contrast annular cascade experimental investigation that were conditioned on angle of attack at -20°,0°and +20°. The Experimental results show that compared 73B with 73A, flow performance improved in evidence,loss of flow reduced 21.8% because of used advanced rear load profile, choosed thickness of the inlet and exit edge, matched in reason exit inverse pressure fragment and inverse pressure gradient.

关 键 词：静叶栅 对比 试验研究 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]