论文部分内容阅读
为降低机油滤清器过滤压力损失,通过压力损失试验,确定了压力损失模拟的边界条件,建立了压力损失的二维CFD模拟模型,分析了压力损失特性与影响因素,推导了压力损失与影响因素的多元回归关系式。模拟结果表明:对滤芯压降影响的主次顺序为过滤速度、滤芯折高、流道宽度、折数、滤纸厚度与含尘浓度;滤芯初始压力损失与其结构及运行参数呈非线性关系,并与滤芯褶数存在最佳值;回归关系式的相关系数为0.998,因此,可靠性高。
In order to reduce the filtration pressure loss of the oil filter, the boundary conditions of the pressure loss simulation were established through the pressure loss test, and the two-dimensional CFD simulation model of pressure loss was established. The pressure loss characteristics and influencing factors were analyzed, and the pressure loss and influence Multiple regression equation of factors. The simulation results show that the order of the primary and secondary factors affecting the pressure drop of the filter is the filtration speed, the height of the filter element, the width of the flow channel, the folding number, the thickness of the filter paper and the concentration of dust. The initial pressure loss of the filter element is nonlinear with its structure and operating parameters And the filter pleat number has the best value; the correlation coefficient of the regression equation is 0.998, therefore, the reliability is high.