12 MW汽轮机调节级叶片的优化仿真  

Optimum Simulation of Blade of 12 MW Steam Turbine Governing Stage

作　　者：耿毫伟 周俊杰[1] Geng Haowei;Zhou Junjie(Zhengzhou University,Zhengzhou450001,China)

机构地区：[1]郑州大学,河南郑州450001

出　　处：《山东化工》2020年第17期233-235,共3页Shandong Chemical Industry

摘　　要：对于调节级的研究,现在多以应力和强度分析为主,而对其气动性能的研究却相对较少,而本文以12 MW轴流式汽轮机通流部分的调节级为研究对象,利用ANSYS CFX对该级静动叶片的气动性能进行三维数值优化计算,通过优化型线的头缘和尾缘,得出调节级的轴功率相对于原始型线提高了11.6%,等熵效率提高了15.8%,温降增加了22℃,从而改变了汽轮机的效率。For the study of the governing stage,stress and strength analysis is the main method,but the aerodynamic performance of the governing stage is relatively less.In this paper,the governing stage of the flow passage part of a 12 MW axial flow turbine is taken as the research object,and the aerodynamic performance of the stator blade of the stage is calculated by three-dimensional numerical optimization using ANSYS CFX.Through optimizing the leading edge and trailing edge of the profile,the shaft work of the governing stage is obtained.Compared with the original profile,the efficiency of the steam turbine is increased by 11.6%,the isentropic efficiency is increased by 15.8%,and the temperature drop is increased by 22℃,which changes the efficiency of the steam turbine.

关 键 词：汽轮机 调节级 ANSYS CFX 数值模拟 型线优化 

分 类 号：TQ018[化学工程] TK263.3[动力工程及工程热物理—动力机械及工程]