用电磁感应法测量磁流化床气泡特性的实验研究

An Experimental Research of Bubble Properties in Magnetic Fluidized Beds by Use of Magnetic Inductive Method

鉴于已有流化床气泡测量方法在磁稳定流化床中难于实现,本文提出了一种新型的气泡特性测量方法——电磁感应法,籍此满意地考察了磁稳定流化床的气泡特性,包括磁场强度、单孔气流流率、主流流率对气泡频率、速度、体积、汇合和分裂的影响。

In view of the fact that the existing mothods of bubble measuring are difficult to bc realized in magnatic fluidizcd beds,a new method of measuring bubble properties-Mag- netic Inductive Method has been developed.By the help of this method the bubble properties in magnetic fluidized beds was studicd successfully,which concerned mainly with the influ- cnce of magnetic intencity,single jet gas flow rate and main fluidizing gas flow rate on bubblc frequency,velocity,volume and coalescence or splitting.