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搅拌主轴的强度和驱动功率是搅拌反应器设计中的重要参数。通过搭建包括驱动电机、扭矩传感器、搅拌主轴、搅拌容器和控制系统等的搅拌反应器扭矩测试装置,采用Lab VIEW和32位微处理器STM32为控制器控制驱动电机并通过与驱动电机相连的扭矩传感器测量主轴的扭矩,进而计算了主轴的实际驱动功率。采用Fluent软件对相同结构的搅拌反应器进行CFD数值模拟,分析搅拌反应器的流体特性,计算搅拌轴的驱动扭矩,计算驱动功率。得到如下结论,实验结果与CFD数值模拟结果相差5.2%之内,两者吻合较好,CFD分析结论可以给实际工程应用提供依据。
The strength of the mixing spindle and the drive power are important parameters in the design of stirred reactors. By setting up a stirrer reactor torque testing device including a driving motor, a torque sensor, a stirring spindle, a stirring container, and a control system, a LabVIEW and a 32-bit microprocessor STM32 are used to control the driving motor of the controller and the driving torque of the driving motor The sensor measures the torque of the spindle and then calculates the actual drive power of the spindle. Fluent software was used to simulate the CFD of the same structure stirred reactor, the fluid characteristics of the stirred reactor was analyzed, the driving torque of the stirring shaft was calculated, and the driving power was calculated. It is concluded that the experimental results are within 5.2% of the numerical results of CFD. The agreement between the two is in good agreement. The conclusion of CFD analysis can provide the basis for practical engineering application.