基于CFD的刮板式薄膜蒸发器工艺计算及辅助设计系统

以VisualBasic6.0为开发工具,开发了薄膜蒸发器辅助设计系统。该系统包括设计计算、参数化绘图、结果输出及管理系统四大部分。通过对薄膜蒸发器内各料液进行CFD分析,针对高粘度物料提出了一种物料膜厚计算方法。以此为基础,综合考虑CFD数值模拟得出的最佳进料量要求,实现薄膜蒸发器的工艺计算。薄膜蒸发器辅助设计系统的开发,结束了长期以来工艺计算采用手工计算或工程放大估算的现状,有效地缩短设计周期,加快设备的推广和应用,进一步提高其研究水平。

Process calculation and aided design system of the wiped thin film evaporator based on CFD

The aided design system for thin film evaporator was developed by Visual Basic 6.0 exploiting technology. Four parts,that is design calculation, parametric drawing, results output and management system are included in the system. A calculation method of liquid film thickness for high viscosity fluid was put forward by CFD analysis of fluids in thin film evaporator. Based on the results, the process calculation of thin film evaporator was realized by synthetically considering the optimum feed rate derived from CFD simulation. The status of manual calculation or engineering magnification estimation for process calculation was ended by the development of the aided design system for thin film evaporator. Also, the design cycle can be effectively shortened, the popularization and application of the equipment can be quickened and therefore the research level of the equipment can be improved.