水泥熟料堆积体渗流换热的管道等效模型研究

Research on pipe equivalent model of seepage and heat transfer for clinker particles accumulation body

本文将管道流动换热理论与多孔介质达西渗流理论结合,建立了具有多孔介质特性的熟料颗粒堆积体渗流换热的等效管道换热物理模型,推导了熟料颗粒堆积体的多孔介质参数与等效管道参数的对应关系,并通过数值仿真计算,给出了等效管道模型的管直径、管内气体流速、管数量随熟料颗粒直径与熟料单元体孔隙率的变化曲线,为堆积颗粒多孔介质的简化提供了理论方法与等效数据。

Based on the combination of porous media’s Darcy seepage theory and the pipe’s flow heat transfer theory,the seepage and heat transfer process of clinker particles accumulation body that with porous media characteristic can be equivalent to the heat transfer model of pipe. Then the congruent relationship between the porous media parameters and the equivalent pipe parameters is structured. By numerical simulation,the pipe diameter,gas velocity inside the pipe as well as the pipe number of the equivalent pipe model is calculated. With the changing curve of clinker particles diameter and the clinker unit body porosity,the theoretical method and equivalent data are provided for the simplification of the accumulation particles porous media.