计算多轴拌器的轴功率

Power correlations of multiple shaft agitators

对三种搅拌器：锚式、螺旋式、锯齿式，在不同的转速配比下进行了轴功率测试，搅拌雷诺数为０．８～３０００００，液体的粘度为０．００１～８４Ｐａ．ｓ。液体的性质属牛顿型流体，试验过程用计算机控制．通过测量轴的扭矩来确定搅拌器的轴功率。实验测定了不同情况下搅拌器相互之间的影响。实验数据由马跨特计算方法确定模型参数并给出层流至湍流范围内三种搅拌器轴功率的计算公式．

Experiments have beed performed to investigate the power consumption that three shaft agitators, namely the anchor, the propeller, and the tooth-blade were employed under the various Reynolds number in Newtonian liquid. The Reynolds number range is tested between 0. 8 and 300 000. The liquid viscosity is 0. 001 to 84 Pa. s. The experiment process was controlled by computer. The strain gauge technique was used to measure the power input. The influence among the different impellers have been tested. Power correlations of each impeller at various conditions are presented. Marquardt-method was used to determine the model parameters.