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采用二级驱动、非对称的优化设计方法,以三通球阀作为先导级、三通滑阀作为主级,先导级与主级间通过控制活塞进行耦合以降低主级对先导级控制流量的需求,通过消除干扰因素诸如液动力等对主级阀快速运动的影响和优化设计,实现高速开关阀的快速动作。研究结果表明,通过液动力补偿,采用二级驱动的非对称设计方法是提高大流量高速开关阀动态响应的有效途径。
A two-stage drive and asymmetric optimization method is adopted. The three-way ball valve is used as the pilot stage and the three-way spool valve is used as the main stage. The pilot stage and the main stage are coupled by the control piston to reduce the main stage’s demand for the pilot stage control flow. , Through the elimination of interference factors such as hydraulic power on the rapid movement of the main valve and optimize the design to achieve high-speed switching valve fast action. The results show that the asymmetric design method of two-stage drive is an effective way to improve the dynamic response of high-flow high-speed on-off valve by hydraulic power compensation.