减小进口气流角对高压轴流风机性能的影响  

Effects of Decreasing Inlet Flow Angle on Performances of High-Pressure Axial-Flow Fans

作　　者：张才华[1] 顾超华[1] 郑水英[1] 

机构地区：[1]浙江大学化工机械研究所,浙江杭州310027

出　　处：《轻工机械》2014年第4期31-35,共5页Light Industry Machinery

摘　　要：轴流式通风机作为使用较为广泛的流体输送机械,在现代工业领域中扮演着相当重要的角色。通过FLUENT软件数值模拟轴流风机的三维流场,研究减小进口气流角对高压轴流风机性能的影响。在利用变环量风机设计方法所得到的叶片基础上,适当减小叶片各截面的进口气流角可以提高高压轴流风机的效率。Axial-flow fan is used widely as a kind of fluid transportation machinery, and plays an important role in the field of modern industry, so researches on the improving its efficiency have special significances. Based on the three- dimensional flow field analysis through FLUENT, the effects of decreasing the inlet flow angle on the performances of high-pressure axial-flow fans were studied. Decreasing properly the inlet flow angles of the sections of blades which are designed according to the traditional variable circulation method can improve the efficiency.

关 键 词：高压轴流风机 进口气流角 变环量 效率 

分 类 号：TH432[机械工程—机械制造及自动化]