摘要
蜗壳是离心式通风机的一个重要部件,其结构是复杂的空间曲面体。蜗壳设计较明显的影响参数是蜗壳的型线、蜗壳截面形状和布置方式,如何绘制蜗壳型线将直接影响蜗壳内的流动损失。本文对现有文献介绍的通风机蜗壳的工程设计方法进行了分析,总结了各设计方法的特点及其适用范围,并就对离心风机性能影响较明显的蜗壳型线和截面形状等因素进行总结分析,对离心风机蜗壳型线设计方法的改进提供了一定的工程设计借鉴价值和学术价值。
The volute plays an important role in the centrifugal fan, and it's structure is complex curved solid. The profile section shape and arrangement form of volute has effect on the design. This paper introduced the design methods of the present centrifugal fans volute profile, and summarized the advantages and disadvantages and applicable range of each method. Then,the influence factors of volute profile and section shape to the performance of centrifugal fan are analyzed, which have the reference value on the improvement of design methods for volute shape of centrifugal fan.
出处
《风机技术》
2017年第S1期17-20,共4页
Chinese Journal of Turbomachinery
关键词
离心风机
蜗壳型线
设计方法
分析研究
centrifugal fans
volute shape
design methods
analysis and research
