罗茨泵极限真空度及其预抽时间预测模型研究

李玉龙,宋陆昊,刘天涯,宋安然

Research on prediction models for limiting vacuum degree and its pre-pumping time of Roots pump

Yulong LI,Luhao SONG,Tianya LIU,Anran SONG

表5 项目I中仿真值与理论值的相对误差

Table 5 Relative errors between simulation values and theoretical values in project I

参数 理论值 仿真值 相对误差/% Qmax/(m3·s-1) 0.653 5 0.649 5 0.61 Qmin/(m3·s-1) 0.502 7 0.494 1 1.71 Qave/(m3·s-1) 0.603 2 0.598 7 0.75 ξ 0.250 0 0.259 6 3.84