基于Fluent的节能型干燥窑内部结构优化研究  

Inner Structure Optimization of Energy Saving Wood Drying Kiln Based on Fluent

作　　者：赵庚[1] 陈广元[1] 

机构地区：[1]东北林业大学材料科学与工程学院,哈尔滨150040

出　　处：《森林工程》2015年第3期47-53,共7页Forest Engineering

基　　金：林业公益性行业科研专项经费项目(201304502)

摘　　要：为使设计的节能型干燥窑内部结构能够满足锯材干燥生产时具有较为均匀的流场分布和较大的风速,本研究利用Fluent软件,对不同配气道宽度和不同进排气道结构参数下的节能型干燥窑内速度场进行数值模拟分析。结果表明,节能型干燥窑内材堆中下两层气流分布较为均匀,材堆顶层气流低流速区域随进排气道高度和配气道宽度的增加而有所减少,材堆内部的高流速区域随进排气道高度和配气道宽度的增加而略有加大。从气流在材堆内部整体流速和均匀性的角度出发,结合生产实际,设计节能型干燥窑内部结构时以进排气道高度为1 000 mm,配气道宽度为1 000 mm为最佳。For the purpose of having a homogeneous flow flied with high speed in stacks when energy saving wood drying kiln was acting, the numerical simulation analysis of flow flied in drying kiln with certain width distribution channels and different inlet and ex- haust ducts were done by Fluent, The calculation results showed that airflow distribution in the central and lower parts of stacks were u- niform relatively ; Along with the increase of inlet and exhaust ducts height or distribution channels width, low speed area in the upper part of stacks had decreased and high speed area in overall stacks increased more or less. In consideration of homogeneity and speed in the whole stacks, 1000mm was the best choice of distribution channels width and height of inlet and exhaust ducts.

关 键 词：节能型干燥窑 数值模拟 结构优化 

分 类 号：S781.7[农业科学—木材科学与技术]