作者：张鹏飞, 赵航, 杨荣超, 曾波, 史占东, 于千源, 苗芊, 张勍

作者单位：中国烟草总公司郑州烟草研究院，河南 郑州 450001

关键词：恒温干燥箱;数值模拟;温度场;均匀度

摘要：

以烟用恒温干燥箱为研究对象，介绍干燥箱的基本原理和结构。通过CFD数值模拟和试验的方法对干燥箱的流场进行研究。采用SOLIDWORKS三维建模软件建立干燥箱的结构图，利用FLUENT软件仿真得到恒温干燥箱达到稳定状态时的温度场、压力场和流速场。恒温干燥箱内9个测量点的温度和风速测量值与数值模拟结果吻合较好，验证了数值模拟模型的正确性。而恒温干燥箱内部温度场的均匀性是干燥箱主要的性能指标之一，研究发现叶轮转速对干燥箱温度均匀度有较大的影响，合适的转速有利于改善干燥箱内温度场的均匀性，为干燥箱的优化设计提供参考依据。

Research on the uniformity of the temperature field in a thermostatic drying oven for tobacco
ZHANG Pengfei, ZHAO Hang, YANG Rongchao, ZENG Bo, SHI Zhandong, YU Qianyuan, MIAO Qian, ZHANG Qing
Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
Abstract: The thermostatic drying oven for cigarettes was the research object. The basic principle and structure of the thermostatic drying oven for tobacco were introduced. The flow field of the drying oven was studied by CFD numerical simulation and experiment. The structure diagram of the drying oven was established by SOLIDWORKS. The temperature field, pressure field and velocity field in the steady state were obtained by using FLUENT software. The measurement results of temperature and wind speed at nine points in the thermostatic drying oven are in good agreement with the numerical simulation results, which verifies the correctness of the numerical simulation model. The uniformity of the temperature field in a thermostatic drying oven is one of the main performance indexes of the drying oven. The results show that the impeller speed has a great influence on the temperature uniformity of the drying oven. Appropriate speed is helpful to improve the uniformity of the temperature field in the drying oven, which provides a reference for the optimal design of the drying oven.
Keywords: thermostatic drying oven;numerical simulation;temperature field;uniformity
2022, 48(2):129-134  收稿日期: 2020-03-29;收到修改稿日期: 2020-06-07
基金项目: 国家烟草专卖局标准制修订项目（2013115）
作者简介: 张鹏飞(1987-),男,河南郑州市人,工程师,硕士,主要研究方向为仪器仪表、烟草计量
参考文献
[1] 孙雯, 李雪梅, 曾晓鹰, 等. 烟丝含水率对卷烟燃吸品质、烟气水分及粒相物挥发性成分的影响[J]. 烟草科技, 2009(11): 33-39
[2] 杨守臣. 恒温干燥箱在烟草行业的应用与校准方法探讨[J]. 计量与测试技术, 2016, 43(10): 58-59,62
[3] JJG (烟草) 10—2014 烟用恒温干燥箱检定规程[S]. 北京: 中国质检出版社, 2015.
[4] 王鹏, 穆军, 雷镇嘉. CFD对S型皮托管流量测量的仿真研究[J]. 中国测试, 2020, 46(9): 119-124
[5] 刘俊, 刘东, 杭寅. 烘箱内部热环境的数值模拟研究[J]. 建筑热能通风空调, 2006, 25(4): 78-85
[6] ZINEDINE K, JOE P, HARVEY T, et al. Computational fluid dynamics (CFD) investigation of air flow and temperature distribution in a small scale bread-baking oven[J]. Applied Energy, 2012, 89(1): 89-96
[7] PIETER V, NICO S, JOSSE DE B, et al. Computational fluid dynamics modelling and validation of the temperature distribution in a forced convection oven[J]. Journal of food engineering, 2000, 43(2): 61-73
[8] 王伟, 员晓辉, 毛海东, 等. 基于热流质温度场分析的分子筛塔管线设计[J]. 中国测试, 2020, 46(5): 94-99
[9] 李金波, 何立东. 蜂窝密封流场旋涡能量耗散的数值研究[J]. 中国电机工程学报, 2007, 27(32): 67-71
[10] 张相亮, 沈恒根, 周睿, 等. 袋式除尘器进气均布板结构参数对气流分布的影响分析[J]. 环境工程, 2012, 30(4): 76-79,27