巨型主配压阀静态特性仿真

利用仿真软件AMESim建立了水轮机调速器主配压阀的静态模型,并对主配压阀静态特性中的泄漏流量、中位泄漏流量、压力—流量特性等进行了仿真分析。结果表明：阀芯在中位时泄漏流量最大;主配压阀搭叠量为0时,中位泄漏流量随着系统压力的增加而线性增加;负载流量与负载压降成反比,与阀芯位移成正比。

Static Characteristic Simulations of Giant Main Distributing Valve

The static model of giant main distributing valve of hydraulic turbine governor is established with AMESim, And the static characteristics including leakage flow rate, middle-position leakage flow rate, pressure-flow characteristics of main distributing valve are analyzed by simulation. The conclusions are drawn that the leakage flow rate is maximum when the spool is in middle position; the middle-position leakage flow rate increases linearly proportional to the system pressure when the overlap quantity of the main distributing valve is zero; the load flow is proportional to the displacement of spool while it is inverse proportional to the load pressure drop.