节流口结构对超高压插装阀液流特性的影响

超高压是液压系统未来发展的方向之一,因此分析超高压液压元件的性能非常重要。针对DN25超高压插装阀3种不同阀芯节流口结构的液流特性进行了分析。以Fluent软件为平台,建立了3种不同节流口结构的DN25超高压插装阀流场有限元模型,结合阀口的节流特性分析了流体的速度场和压力场,得到了不同阀口开度下的流量以及阀芯所受液压力,为超高压插装阀结构设计提供了理论基础。

Effect of Throttle Structure on Flow Characteristics of Ultra-high Pressure Cartridge Valve

Ultra-high pressure is a direction for the future development of hydraulic systems, so the analysis of the performance of ultra-high pressure hydraulic components is very important. The flow field of DN25 ultra-high pressure cartridge valve with three different spool structure throttle structures was analyzed. Using Fluent software as the platform, the flow field finite element model of the fluid in the cavity of DN25 ultra-high pressure cartridge valve with three different structure orifices was established. The velocity field and pressure field of the fluid are analyzed in combination with the throttling characteristics of the valve port. The flow rate under different valve opening and the hydraulic power of the spool are obtained. Provides guidance for the design of ultra high pressure hydraulic valves.