汽轮机静叶栅变冲角性能的实验研究  

Experimental investigation of aerodynamic performance of a turbine static cascade at different incidence

作　　者：王祥锋[1] 颜培刚[1] 黄洪雁[1] 韩万金[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《实验流体力学》2011年第6期66-71,共6页Journal of Experiments in Fluid Mechanics

基　　金：国家自然科学基金(50706009)

摘　　要：为了研究亚临界600MW汽轮机高压第九级静叶叶栅的变冲角气动特性,为高压静叶叶片设计提供依据,对原型和改型两套环形叶栅在低速风洞中进行了不同冲角工况下的吹风实验研究。实验结果表明:改型叶栅降低了叶栅的流动损失,具有更好的变冲角特性。To investigate the aerodynamic performance at different incidences of the high pressure static blade cascade used in the 9th stage of the 600MW sub-critical steam turbine, experi- ments in a low speed wind tunnel were carried out for the two sets of annular turbine cascades （the original and modified ones） under three different incidences, which is to provide basis for the design of high pressure static blade. The experimental results show that the modified stator cascade can reduce the flow loss and has better incidence performance compared with the original one.

关 键 词：汽轮机静叶栅 弯叶片 冲角 气动性能 风洞实验 

分 类 号：TK26[动力工程及工程热物理—动力机械及工程] V211.7[航空宇航科学与技术—航空宇航推进理论与工程]