地面重型燃气轮机压气机静叶流动分析  

Flow Analysis of Stationary Blades for Floor Type Heavy Duty Gas Turbine Compressor

作　　者：陈冶 张宏涛[2] 

机构地区：[1]格兰尼技术咨询(北京)有限公司,北京100022 [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》2010年第3期202-204,共3页Turbine Technology

摘　　要：研究对象为某地面重型燃气轮机压气机亚音速级静叶,静叶为悬臂结构,展弦比较大。通过分析静叶流场结构特点发现:①静叶上端壁角区分离流动和静叶下端壁间隙泄漏流动使上下端壁通流能力下降容易诱发角区失速;②由于叶片较长,静叶叶型损失较大,使其与两端区流动并列成为影响静叶损失的3个主要来源。A heavy duty gas turbine compressor subsonic stator has been studied which is cantilevered with high aspect ratio. By analyzing the flow characteristics it is found that： 1 ） The comer separation flow and leakage flow result in less flow pass to the hub and tip regions which lead to the stall; 2） As for the high aspect ratio the stator profile loss increases which makes itself to be as much as end - walls loss.

关 键 词：地面重型燃气轮机压气机 大展弦比 悬臂结构 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]