导风板对片烟复烤干燥室的热流场影响研究

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中图分类号：S572；TH122 文献标识码：A 文章编号：2095-5553（2025）08-0210-06

Abstract：At present，theuneven drying phenomenonof tobacco redrying is mainlyafected bytheuniformityof heat flow feld indrying room.Tosolvethis problem，air guideplateswithdiferentstructuresandangles aresetinthedrying room to optimizethe heatflow field distribution.Combined with theturbulence modelandthe porousmediummodel，theCOMSOL simulationmodeloftheflowfieldandthetemperaturefieldcouplingintheup-draughtdryingchamberwasestablished，and the non-uniformcoefcientofflowfieldand temperaturenon-uniformcoeficientwereobtainedbysimulationanalysis.Theesults showed that when the aperture of the air guide plate was 20mm ，the hole distance was 60mm ，and the dip angle was 5∘ ，the heatflowfieldonthe tobaccolayer wasuniform，andtheaverage wind speed andaverage temperature were increased.After improving the air guide plate，the upper field inhomogeneity coeficient of the tobacco leaf layer decreased from 20.51% to 13.24% ，the average wind speed increased from 0.68m/s to 0.76m/s ，the temperature inhomogeneity coeficient of the tobacco leaf layer decreased from 12.71% to 7.71% ，and the average temperature increased from 29.44∘C to 30.34∘C ：

Keywords：tobacco redrying；thermal flow field；temperature field；uniformity；air guide plate

0 引言

在烟叶复烤过程中，烟叶的干燥均匀性对于烟叶的品质至关重要[1]。（剩余9865字）