两种形体填料流阻特性的试验研究

在石油化工系统的反应器中，常用球形体作催化剂床层表层及底层填料。为探讨明流体通过这种球形体孔隙间的流阻特性，进行了两种球形体（整形球及异形球）的水力模型试验研究，结果表明：1）这两种球形体孔隙间的流动均处于紊流的过渡粗糙区；2）所研究的异形球体，在Ren=6000-14000范围内，其水力坡度比整形球体的水力坡度小17％－30％。所以，应用该种异形球体作石油化工系统反应器中催化剂床层的表层及底层填料，能增加反应器负荷，增加产值。

Experimental Study onProperty of Hydraulic Resistance for Two Sorts of Filling Material With Sphere Body

To study hydraulic resistance properties caused by flow fluid through holes between sphere bodies which are used as a sort of filling material at the top layer and base layer of a oil chemical reaction tower,hydraulic model tests for two sorts of sphere bodies(normal balls and abnormal balls) have been performed.The results demonstrate that:1)the pattern of flow fluid through the holes between sphere bodies(involving normal balls and abnormal balls) belongs to the regime of transition rough in turbulent；2) the hydraulic gradient of abnormal balls is 17%～30% lesser than that of normal balls as Ren=6000～14000.It's concluded that the abnormal balls is a better sort of filling material in a oil chemical reaction tower and with it,the reaction load and productivity can be increased.