木材干燥窑内部流场改进与风速均匀性研究.pdfVIP

西北林学院学报 2016 ， 3 1( 3) ， 247-251 Journal of Northwest Forestry University doi: 10. 3969/j. issn. 1001-746 1. 2016. 03. 43 木材干燥窑内部流场改进与凤速均匀性研究 孟兆新1 ，李 尚I\ 肖定福气陈广元2 (1.东北林业大学机电工程学院，黑龙江哈尔滨 150040;2. 东北林业大学材料科学与工程学院，黑龙江哈尔滨 150040) 摘 要:木材干燥窑流场均匀性是影响木材整体干燥质量与效率的主要因素。为解决木材干燥窑 内部风速分布不均匀的问题，在理论研究和试验的基础上，提出增加导流板、改造窑体结构和优选 材堆间隙的措施，并运用 HyperWorks 软件进行解算分析。结果表明，安装导流板、改变窑体结构 以及改变材堆梯度间隙后千燥窑内部流场速度分布均匀位得到提高。仿真数据为改善木材干燥质 量提供了依据，具有良好的应用前景。 关键词:木材千燥窑;HyperWorks; 导流板;结构改造;材堆间隙 中固分类号:S782 文献标志码:A 文章编号:1001-7461(2016)03-0247-05 Improvement of Internal Flow Field of Wood Drying Kiln and Its Wind Speed Distribution Uniformity 1 1 骨 1 Z MENG Zhao-xin , U Shang ， XIAO Ding-fu , CHEN Guang-yuan (1. College 01 Mechanical and Electrical Engineering ,Northeast Forestry University. Harbin. Heilongjiang 150040.China; 2. College 01 Material Science and Engineering. Northeast Forestry University. Harbin ,Heilongjiang 150040 ,China) Abstract: Flow field uniformity of wood-drying kilns is the main factor affecting the quality and efficiency of the overall wood-drying. Aiming at solving the problem of the uneven distribution of the internal airflow of wood-drying kilns ,based on the theoretical studies and experimental validations , the authors proposed the methods of adding more deflectors ,restructuring kilns and optimizing the gap gradient of wood piles ,which were calculated and analyzed by HyperWorks software. The simulation results demonstrated that the wind speed distribution uniformity of internal flow field of wood-drying kiln was improved after installing deflec- tors ,restructuring of kiln and changing the gap gradient of wood piles.