液压与气动2025，Vol.49Issue(11)：65-75,11.DOI:10.11832/j.issn.1000-4858.2025.11.008
乳化液泵数字进液阀稳态液动力分析
Steady-state Flow Force Analysis of Digital Inlet Valve of Emulsion Pump
摘要
Abstract
The digital inlet valve serves as a critical hardware foundation for implementing digital flow control technology.Targeting the design requirements of digital inlet valve,a steady-state flow force analysis and calculation are conducted for the inlet valve of emulsion pumps.Firstly,the operational principles of digital flow control technology are expounded,and the feasible operating range of the actuator for the digital inlet valve is determined.Secondly,hydrodynamic forces acting on the inlet valve spool are rigorously analyzed,with the steady-state flow force acting on the spool within the feasible operating range is calculated.Finally,the visualization analysis results of the internal flow field in the pump chamber are obtained through CFD simulation.The simulated flow force values are calculated and comparatively validated against theoretical predictions.Depending on the scheme,maintaining the inlet valve spool in normally open position at crank angles θ ∈[60°,240°]is essential for goal of digital flow control technology.Feasible operating range flow force are computed via momentum theorem-based CFD simulations.Peak steady-state flow force occurred at θ=80°,with theoretical and simulated values of 6.68 N and 6.19 N respectively.The maximum deviation between theoretical and simulated results across the entire feasible operating range is 0.57 N,which provides a fundamental basis for determining design parameters of digital inlet valve in subsequent studies.关键词
数字式流量调控技术/乳化液泵/进液阀/稳态液动力Key words
digital flow control technology/emulsion pump/inlet valve/steady-state flow force分类
机械工程引用本文复制引用
韦春辉,张占东,姚丽英,李逸飞,王宇..乳化液泵数字进液阀稳态液动力分析[J].液压与气动,2025,49(11):65-75,11.基金项目
2022年度山西省基础研究计划(自由探索类)第一批项目(202303021211325) （自由探索类）
