一种新型插装式溢流阀的稳态性能研究

Static Performance of a New Type of Cartridge Relief Valve

介绍了一种新型插装式溢流阀的工作原理及结构特点,进行压力-流量特性方程的理论推导,并通过MATLAB软件仿真出压力-流量特性曲线分析了该阀的溢流特性。然后通过模拟不同结构参数下的压力流量特性来分析对溢流阀的调压偏差的影响,最终确定主阀入口直径、弹簧刚度、出口溢流孔直径是影响该种结构阀稳态调压偏差的重要因素,并分析了具体的影响过程,为今后先导球阀型溢流阀的结构参数优化设计提供重要依据。

In this article, a new type of cartridge overflow valve is introduced, and the pressure and flow rate character equation is deduced. The software MATLAB is applied to obtain the pressure and flow rate character curve to analyse its performance. Under different structural parameters, we analyze the effect factors on pressure regulating deviation of relief valve, and determine that the inlet diameter and the spring stiffness of main valve, and the diameter of overflow hole are the essential factors. The results provide an important basis for the optimization design of pilot relief valve with ball structure.