动叶片中间体和围带进汽侧倒圆角对气动性能影响研究  

Research into the Moving Bade Hub and Shroud Fillet at Inlet Confining Effect on the Aerodynamic Performance

作　　者：刘云锋[1] 郭魁俊 张宏涛[1] 管继伟[1] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2015年第1期21-22,32,共3页Turbine Technology

摘　　要：以某超超临界660MW机组为例,计算分析了动叶片进汽侧中间体和围带倒圆角后高中低压典型级效率的变化,结合经典的一维掺混模型和经验公式,分析了效率变化的原因,指出了低压部分倒圆角后收益最大,中压最小,具有工程指导意义。In this paper , fillets were taken at the moving bade hub and shroud inlet of typical stages about same 660MW ultra-supercritical units , to analysis the aerodynamic efficiency changes .Combined with a blend of classic one-dimensional models and empirical formulas , analysis reasons for the changes in efficiency , pointed out the biggest change with LP path flow and the smallest change with IP path flow , provide engineering guidance .

关 键 词：汽轮机 通流优化 数值模拟 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]