Mechanism of first air separation for ZJ17 coiling unit based on Fluent
Since the effect of stem separation is greatly affected by the wind speed in the working range,it is of great signifi-cance to carry out the research on the mechanism of the first air separation device to improve the quality of cigarettes.In this arti-cle,the first air separation device is modeled by means of SolidWorks;and its wind speed at the outlet is worked out based on Flu-ent,and the experimental verification is carried out.On this basis,the analysis is conducted on the wind field in the first air sepa-ration device's cavity,the wind speed at the outlet,and the wind speed from the outlet to the working range.The results show that regional backflow and partial turbulence inside the first air separation device are obvious.From the experiment on the air-flow speed at the outlet,it is shown that the distribution range is 21.87～25.9 m/s;the simulation results show that the distribution range is 21.096 6～25.924 m/s.The results obtained from the simulation are generally consistent with those obtained from the experiment.The air-flow speed from the outlet to the working range gradually decreases,and its changing rate also gradually declines.In conclu-sion,the combination of regional backflow and partial turbulence inside the first air separation device leads to the uneven distribu-tion of the wind speed at the outlet.Under the influence of the external wind field,the wind-speed distribution in the working area will produce secondary changes.
first air separation devicestem separationwind speedFluent
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