豆油单螺旋压榨工艺参数仿真分析与试验
Simulation analysis and experimental study on processing parameters of soybean oil single screw press
郭庆 1万志华1
作者信息
- 1. 武汉轻工大学,湖北 武汉 430048
- 折叠
摘要
[目的]探究不同工艺参数对豆油单螺旋压榨效果的影响,提高压榨工作效率和出油率.[方法]建立水、豆油与大豆颗粒混合物的两相流欧拉模型,利用ANSYS FLUENT软件对豆油压榨过程中不同榨膛温度、榨膛压强、榨油机转速条件下的流体特性进行模拟分析,使用 100型单螺旋榨油机进行验证.[结果]豆油体积分数的极值范围为 6.06%～19.80%,流体压强的极值范围为4.990～15.079 MPa,豆油流动速度的极值范围为0.20～7.46 m/s.榨膛压强对豆油流动速度影响极显著(P=0.001<0.01),榨油机转速对豆油流动速度影响显著(P=0.014<0.05).榨膛压强对豆油体积分数影响极显著(P=0.000<0.01),榨油机转速对豆油体积分数影响极显著(P=0.000<0.01).[结论]一定条件下,增大榨油机转速与榨膛内压强可提高豆油的流动性和出油率;榨螺的压强集中于油料运输段和初压榨段,增强榨螺在此位置的刚性强度可提高榨油机的工作稳定性.
Abstract
[Objective]To explore the influence of different process parameters on the single screw press of soybean oil,and improve the pressing efficiency and oil yield.[Methods]An Eulerian model for two-phase flow of water,soybean oil and soybean particles was established.The fluid characteristics under different chamber temperature,chamber pressure and rotary speed in the pressing process of soybean oil were simulated and analyzed by ANSYS FLUENT software,and the validation test was carried out by using 100-type single screw oil press.[Results]The extremum range of soybean oil volume fraction was 6.06%～19.80%,the extremum range of fluid pressure was 4.990～15.079 MPa,and the extremum range of soybean oil flow velocity was 0.20～7.46 m/s.The chamber pressure had a highly significant effect on the flow velocity of soybean oil(P=0.001<0.01),and rotary speed had a significant effect on the flow velocity of soybean oil(P=0.014<0.05).The chamber pressure had a highly significant effect on the volume fraction of soybean oil(P=0.000<0.01),and rotary speed had a highly significant effect on the volume fraction of soybean oil(P=0.000<0.01).[Conclusion]Under certain conditions,the fluidity and oil yield of soybean oil can be improved by increasing the rotating speed of press and the chamber pressure;The pressure of screw is concentrated in the oil transportation section and the initial pressing section.Enhancing the rigidity of screw at this position can improve the working stability of oil press.
关键词
单螺旋榨油机/豆油压榨/工艺参数/流体特性Key words
single screw oil press/soybean oil press/process parameters/fluid properties引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据