MAXFLOW叶轮在高密度沉淀池工艺上的应用

Application of MAXFLOW Impeller in High-Density Sedimentation Process

对MAXFLOW叶轮在配置导流筒和未配置导流筒两种状态下的高密度沉淀池进行了试验模拟,按10:1的比例建立了实验装置,并进行了不同转速条件下功率准数的测试和计算。试验结果表明:配置导流筒和未配置导流筒的反应扭矩和转动频率平方值均呈现良好的线性关系,R2值达到0.999。两种情况下的功率准数基本不随雷诺数的不同而变化。MAXFLOW叶轮在配置导流筒情况下的功率准数为0.707,比未配置导流筒下降了14%。在国内某水厂絮凝池的应用中,配置导流筒情况下搅拌机的额定功率比标准设计状态下节省了32%。

Simulative high-density sedimentation was tested under two conditions: deploying MAXFLOW impeller with and without draft tube. The experimental device was established by 10:1 of actual tank sizes, and standard power data deferring with different initial rotation speed was tested and calculated. The result showed that there was a good linear relationship between the torque and the square of rotation frequency, with R2 of 0.999. The standard power data did not change with the Reynolds number, and the value was 0.707 when deployed with draft tube, 14% lower than without draft tube. The application in certain domestic water plant showed that the tank deployed with draft tube reduced the rated power of mixer by 32%.