大型汽轮机主汽调节阀的实验与数值分析  

Experimental and Numerical Investigation into High-Pressure-Combined Valve for Large Steam Turbines

作　　者：徐克鹏[1] 蔡虎[2] 崔永强[1] 蒋洪德[1] 

机构地区：[1]中科院工程热物理研究所,北京100080 [2]北京全三维动力工程有限公司,北京100080

出　　处：《动力工程》2003年第6期2785-2789,2794,共6页Power Engineering

基　　金：国家技术创新项目(G1999022309)

摘　　要：大型汽轮机主汽调节阀的气动性能和振动性能直接影响电厂的安全高效运行,通过模型实验和数值模拟手段对某些600MW汽轮机的高压主汽调节阀进行了研究。实验与数值模拟结果进行了对比,详细分析了阀门内部的流场结构,得出了阀门的流量分配关系、损失状况以及损失在阀门中的分布,并讨论了损失产生的机理。The Aerodynamic performance highpressurecombined valve (HPCV) influences the efficiency and security of power plants. A model test and numberical simulation are employed to investigate the highpressurecombined valve of a 600MW steam turbine in present paper. Comparison between experiment and numerical simulation is good. The details for flow field inside the valve are presented. The assignment of mass flow between two controlling valves and loss distribution along flow path inside the valve are obtained. Loss mechanism is discussed. Figs 11, Tables 2 and Refs 5.

关 键 词：汽轮机 主汽调节阀 实验研究 数值模拟 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]