Eckert填料层压降通用关联图的关联与应用

Correlations and Applications of Eckert's Current Correlative Graph of the Pressure Drop of Packing Layer

对Eckert的通用关联图进行了回归 ,得到了分段的关联式 ,计算的最大误差为 18.5 % ,平均误差为 4.96 % ,可以满足工程设计计算的要求。该关联式用于真空精馏塔的计算 ,得到了满意的结果。同时还对三条泛点线进行了关联。

Several relevant correlations were obtained by regressing Eckert's current correlative graph.The max.error in calculation is 18.5%,and the average error 4.96%.It can satisfy the needs of calculation in engineering design.The results of calculation by using the obtained correlations in the design of vacuum distillation tower were satisfactory.Three floodingpoint lines were also correlated.