2R叶型多叶通风机运行状态的试验研究  

Experimental Study about the Operation Status of Multiblade Fans with 2R Blade Profile

作　　者：左文泉[1] 张东亮[1] 

机构地区：[1]山东大学

出　　处：《风机技术》2004年第1期13-16,共4页Chinese Journal of Turbomachinery

摘　　要：介绍了一种新型通风机在系统性试验过程中出现的哨声、喘振以及间歇振动现象。初步分析了各种现象的产生条件、消除方法以及发生机理。提出了叶道收缩系数、哨声发生函数和喘振发生函数三个新概念。讨论了这种低噪声。The phenomena of whistling, surging and inter mi ttent oscillation are introduced in the systematic tests, Generating condition, eliminating method and generating course of every phenomenon above are primarily analysed. Three new conceptions of blade channel contraction factor, whistling generation function and surging generation function are proposed. Design approac h of this novel fan, which is of low noise and high efficiency is discussed.

关 键 词：2R叶型多叶通风机 运行状态 试验 哨声 喘振 

分 类 号：TH43[机械工程—机械制造及自动化]