摘要
针对离心式通风机的蜗壳内壁型线设计常用两种近似作图方法存在的问题,提出了一种更为合理的新近似作图法,新作图法很好地解决了4段圆弧间相接和相切的问题,并可分别按阿基米德螺旋线和对数螺旋线近似作图。
Now equilateral -element method and inequilateral -element method are the two most common methods in designing the inner wall line of the volute in centrifugal fan. According the problems existed in the two kinds of methods,a new approximate drawing method which is more reasonable is pointed out in this paper. This method can solve the problem on the anastomosis and tangent of the four arcs. We can also apply this method either on the base of Archimedean and Spiral Equation or Logarithm Spiral Equation.
出处
《风机技术》
2008年第5期30-32,39,共4页
Chinese Journal of Turbomachinery
关键词
离心式通风机
蜗壳型线
近似作图法
centrifugal fan
volute shape
approximate drawing method
