600MW汽轮机主汽调节阀流动特性的数值研究  

Numerical Analysis of Flow Characteristics Within the Main Stop and Governing Valve of a 600 MW Steam Turbine

作　　者：韩中合[1] 吴琼[1] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,河北保定071003

出　　处：《汽轮机技术》2008年第6期401-403,共3页Turbine Technology

摘　　要：对某600MW亚临界汽轮机主调阀在全开度下的流动特性进行了数值模拟。给出了阀门内流动总压损、压损沿流程分布情况以及调节阀门的流量分配。分析了蒸汽在阀门中的流动特点及流动损失产生的机理。为进一步研究阀门的流场特性及结构改进提供了参考。A numerical simulation of flow characteristics within the main stop and governing valve of a 600MW steam turbine under 100% opening condition is employed. The total pressure loss and the pressure loss distribution along flow path are presented. The assignment of mass flow between two controlling valves is given. Flow characteristics and pressure loss mechanism of the valve is discussed. The article provides the reference for further research of flow field and structural development in the main stop and governing combination valve.

关 键 词：动力机械及工程 主调节阀 流动特性 数值模拟 

分 类 号：TK261[动力工程及工程热物理—动力机械及工程]