汽轮机排汽系统优化设计与性能分析  

OPTIMAL DESIGN AND PERFORMANCE ANALYSIS OF STEAM TURBINE EXHAUST SYSTEM

作　　者：陈川[1,2] 付经伦[1,2] 刘建军[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]中国科学院研究生院,北京100190

出　　处：《工程热物理学报》2009年第8期1295-1298,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金重点项目(No.50336050)

摘　　要：本文将试验设计方法、响应面近似建模方法及优化算法与排汽系统参数化造型程序及CFD求解软件相结合,应用于汽轮机排汽系统优化设计与分析。并以300/600 MW汽轮机低压排汽系统模型为研究对象,在两种入口条件下应用该方法对其进行了气动优化设计。与原始排汽系统相比,优化后扩压性能有较大的改善,验证了本文提出的气动优化设计方法的有效性,同时表明排汽系统入口条件和几何参数都会影响优化结果。This paper presents an optimization method in which Design of Experiment （DOE）, Response Surface Methodology （RSM） and Optimization Toolbox are integrated with the parameterization code and CFD solver. The method is capable of aerodynamic optimal design and performance analysis, and has been applied to the exhaust system of 300/600 MW steam turbine with two different inflow conditions. The effectiveness of the method is verified by that the pressure recovery coefficients of the optimized exhaust system under two different inflow conditions are higher than that of the original exhaust system. It is found that both the inflow condition and the geometry parameters influence the results of the optimization.

关 键 词：排汽系统 参数化造型 试验设计 响应面方法 入口条件 优化设计 

分 类 号：TK26[动力工程及工程热物理—动力机械及工程]