摘要
低比转速泵几何参数对扬程的影响,应当侧重于综合影响的研究。采用灰色理论分析了低比转速泵几何参数对扬程的综合影响,通过大量计算提出了这些参数对泵扬程的影响排序结果。计算结果表明,在这些几何参数中,叶轮出口直径D2对扬程影响最大,叶片出口角2β影响最小,进口直径D1,叶轮出口宽度b2,叶片数Z和叶片长度比R依次地处于它们之间。这种方法对其它工程项目方案的研究具有重要的实际意义。
The influences of geometrical parameters on low specific pump head should be emphasized on comprehensive influence. The comprehensive influence of geometrical parameters on low specific speed pump head is studied by using grey theory, the influence ordering of these parameters also obtained after a lot of calculation in this paper. The calculating result showed that impeller outlet diameter D2 effects on the head largest of these parameters, vane outlet angleβ2 smallest, inlet diameter D1, outlet width b2, vane number Z and vane length ratio R were between them successively. This method had important practical significance for research other project programs.
出处
《排灌机械》
2006年第2期1-3,共3页
Drainage and Irrigation Machinery
关键词
离心泵
低比转速
几何参数
扬程
综合影响
灰色理论
分析
Centrifugal pump
Low specific speed
Geometrical parameters
Head
Comprehensive influences
Grey theory
Analysis
