低压缸进汽蜗壳气动性能试验研究  

Experimental Research on Aerodynamic Performance of the LP Inlet Volute of Steam Turbine

作　　者：徐宝玉[1] 牟先红[1] XU Bao-yu;MOU Xian-hong(Harbin Turbine Company Limited,Harbin 150046,China)

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》2021年第2期107-110,92,共5页Turbine Technology

摘　　要：为了研究汽轮机低压缸进汽蜗壳气动性能,将某机组低压进汽蜗壳进行吹风实验研究。分析发现周向速度在三维速度矢量中占据主导,带导流结构出口速度更均匀,不带导流气流角更均匀,进汽蜗壳的流动损失随流量增加而上升,横置导叶全周进口流场不均匀,且随着流量的增大而增强。In order to study the aerodynamic performance of the inlet volute of the low-pressure cylinder of a steam turbine,this paper conducts a blowing experiment on the low-pressure inlet volute of a unit.Through the analysis of the experimental research,it is found that the circumferential velocity dominates the three-dimensional velocity vector,the exit velocity with the guide structure is more uniform,the airflow angle without the guide structure is more uniform,and the flow loss of the intake volute increases with the increase in flow.The inlet flow field of the horizontal guide vane is not uniform and increases with the increase of flow rate.

关 键 词：进汽蜗壳 气动性能 出口速度 气流角 横置静叶 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]