高粘稠物料在灌装阀体内的流动状态分析

CFD Analysis of High Viscous Material in Filling Piston

根据灌装高粘稠物料的活塞式灌装机的结构和参数,利用软件Proe/E建立了三通阀及进出料口内流道的三维几何模型。应用前处理软件Gambit进行网格的划分、细化,然后对出料口在Fluent中进行计算研究,应用CFD对活塞式灌装机的阀和活塞的运动关系进行分析,并对阀芯运动到不同位置时的流速、压力,以及高粘稠物料的湍流强度进行了分析,获得了阀在不同位置时,不同流量下受到的湍流强度、流速、流量系数与流量、角度之间的关系。对高粘度物料的灌装和结构参数优化具有一定的借鉴意义。

3D geometric model of the flow in material inlet and outlet and three-way valve was established using Pro/E according to the structure and parameters of the piston filling machine for high viscous materials. The meshes of the model were fractionized by the preprocessor Gambit and then calculated in Fluent. The movement between the filling valve and the piston, the flow rate and pressure of different position the spool, and the tur- bulence intensity of high viscous materials were analyzed using CFD. The relationship among turbulence intensity, velocity, discharge coefficient, flow, and angel was obtained. The purpose was to provide reference for design and optimization of high viscosity material filling.