电站轴流通风机系统数学模型及喘振特性分析  

Mathematical Model of the Axial-flow Fan System in Power Plants and Analysis on Surge Characteristics

作　　者：李超[1] 周克毅[1] 徐啸虎[1] 王宜翠[1] 

机构地区：[1]东南大学,南京市210096

出　　处：《风机技术》2010年第1期11-15,共5页Chinese Journal of Turbomachinery

摘　　要：针对电站轴流通风机及其管路系统的运行特点,建立了轴流通风机管路系统的集总参数动态数学模型,并利用已有试验结果验证了模型的准确性。根据所建模型,对轴流通风机在各种不同工况下的动态过程进行模拟,详细分析研究了发生喘振的动态特性,着重分析了电站锅炉一次风温对喘振特性的影响。According to the operation characteristics of the axial-flow fan and its pipeline in the power plant,the lumped parameter dynamic mathematical model for the axial-flow fan＇s pipeline is established,and the accuracy of this model is verified by using avaible testing results.Based on the model,the dynamic process of the axial-flow fan is simulated under various operating conditions.Furthermore,the dynamic characteristics of the axial-flow fan＇s surge are analyzed in detail and the effect of boiler＇s primary air temperature on the surge characteristics is mainly analyzed.

关 键 词：轴流式通风机 数学模型 动态特性 喘振 

分 类 号：TH432.1[机械工程—机械制造及自动化]