导流筒对搅拌槽流场的影响  

Study on the effects of using draft-tube to flow fields in the mix tank

作　　者：黄男男 石秀东 张建华[2] 毛忠贵[2] 

机构地区：[1]江南大学机械工程学院,江苏无锡214122 [2]江南大学生物工程学院,江苏无锡214122

出　　处：《食品与机械》2009年第1期93-96,共4页Food and Machinery

基　　金：国家863项目(编号:2006AA020303-02)

摘　　要：为研究导流筒对搅拌槽内流场的影响,应用数值计算方法,对搅拌槽内流场进行数值模拟。通过对有、无导流筒的搅拌槽内流场和速度的对比分析表明:导流筒强化了搅拌槽内上下液体的整体轴向流动,在近浆区域改善了液体的跟转,有强烈的混合效果,并且,在较为理想的流场分布下,有导流筒的搅拌槽功率消耗比无导流筒搅拌槽节省12%,其结果将为搅拌槽的整体结构优化提供有效途径。In order to study the effects of using draft-tube to flow fields in the mix tank ,The flow fields in the mix tank were investigated by numerical simulating. According to analysis of flow field and velocity distribution in the mix tank, the results indicate that： using draft-tube in the mix tank, the axial flowing of liquid can be increased, the circumgyration around the impeller will be improved, and the strong mixed effect can be gained. Besides, the power consumption in the mix tank with draft-tube will descend 12% compare with non draft-tube. The results will improve the optimizing of the mix tank.

关 键 词：搅拌槽 导流筒 流场 数值模拟 

分 类 号：TQ051[化学工程]