强制对流烤箱温度场特性及其优化研究  

Study and optimization on characteristics of temperature field in forced convection oven

作　　者：袁宏[1] 吴大转[1] 秦世杰[1] 郑鑫 武鹏[1] 黄滨[3] 

机构地区：[1]浙江大学化工机械研究所,浙江杭州310027 [2]宁波方太厨具有限公司,浙江宁波315336 [3]浙江大学海洋工程与技术研究所,浙江杭州310027

出　　处：《食品与机械》2017年第6期73-78,共6页Food and Machinery

摘　　要：为研究某型强制对流烤箱内温度分布特性,优化烤箱内部温度场均匀性,采用试验测试和数值模拟进行研究。通过3×3分布式电阻测点(Pt)动态测量烤箱各层温度场分布,针对烤箱温度均匀性指标进行了测量与分析。采用计算流体力学方法对烤箱内部温度场进行了数值模拟,综合考察了热传导、对流和辐射效应。进一步通过试验的温度测量,验证了数值模拟方法的准确性。结合试验和模拟结果,揭示并分析了烤箱原有结构温度场不均匀的原因。通过添加径向导叶结构、调整加热管位置、改进加热管形式和烤箱挡板等措施,有效改善了烤箱内部温度场的均匀性。In order to study the characteristics of temperature distribution in a forced convection oven,and to optimize the uniformity of the temperature field inside the oven,the experimental and numerical simulation was carried out.The temperature distribution of each layer was measured by 3×3distributed resistance points（Pt）,and the temperature uniformity was measured and analyzed.The Computational Fluid Dynamics（CFD）method is used to simulate the temperature field inside the oven,considering the heat conduction,convection and radiation.The accuracy of the numerical simulation method is verified by the experimental results.Based on the experimental and simulation results,the reasons for the non-uniform temperature field of the original structure of the oven are revealed and analyzed.The uniformity of the temperature field in the oven is improved by adding the guide vane structure,adjusting the position of the heating tube,improving the heating tube and improving the baffle.

关 键 词：烤箱 强制对流 温度场分布 流场模拟 结构优化 

分 类 号：TS972.21[轻工技术与工程]