横流风机双预旋进气导叶制造技术

一种横流风机双预旋进气导叶，属于叶轮机械技术领域。本发明专利技术包括：正预旋导叶组和负预旋导叶组，所述的正预旋导叶组包括若干个进气导叶，所述的负预旋导叶组包括若干个进气导叶，其中：正预旋导叶组中的进气导叶从横流风机进气口的蜗壳端部开始向横流风机进气口中心依次排列，负预旋导叶组中的进气导叶从横流风机进气口的蜗舌端部开始向横流风机进气口中心依次排列。本发明专利技术能够改善横流风机的局部进气条件、提高横流风机的运行效率、拓宽横流风机的稳定运行工况范围，且本发明专利技术结构简单，能够方便地设置于各类通风用的横流风机上。

Double pre swirl inlet guide vane of cross flow fan

The utility model relates to a double pre swirl inlet guide vane of a cross flow fan, belonging to the technical field of impeller machinery. The present invention includes: pre rotating vane group and negative prewhirl vane group, pre rotating the blade group comprises a plurality of inlet guide vanes, the negative prewhirl vane group comprises a plurality of inlet guide vanes, including: pre rotating inlet guide vane start in leaf group the cross flow fan inlet center are arranged from the end of the cross flow fan volute inlet, negative prewhirl guide inlet guide vane in leaf group began to cross flow fan inlet center are arranged from the tongue end of the cross flow fan inlet. The invention can improve local air condition, the cross flow fan to improve the efficiency of cross flow fan and widening of the cross flow fan and stable operating range, and the invention has the advantages of simple structure, can be conveniently arranged in various ventilation cross flow fan.

【技术实现步骤摘要】

【技术保护点】
一种横流风机双预旋进气导叶，其特征在于，包括：正预旋导叶组和负预旋导叶组，正预旋导叶组包括若干个进气导叶，负预旋导叶组包括若干个进气导叶，其中：正预旋导叶组中的进气导叶从横流风机进气口的蜗壳端部开始向横流风机进气口中心依次排列，负预旋导叶组中的进气导叶从横流风机进气口的蜗舌端部开始向横流风机进气口中心依次排列。

【技术特征摘要】

【专利技术属性】
技术研发人员：李游，欧阳华，田杰，王红涛，杜朝辉，
申请(专利权)人：上海交通大学，
类型：发明
国别省市：31[]