Hydraulic design and pre-whirl regulation law of inlet guide vane for centrifugal pump

被引：50

作者：

Tan Lei ^{[1
]}

Cao ShuLiang ^{[1
]}

Gui ShaoBo ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Thermal Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2010年 / 53卷 / 08期

基金：

中国国家自然科学基金;

关键词：

centrifugal pump; inlet guide vane; pre-whirl regulation; hydraulic design method; experiment; numerical simulation; FLOW; PERFORMANCE; IMPELLER;

D O I：

10.1007/s11431-010-4005-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new hydraulic design method of three-dimensional guide vane for centrifugal pump is proposed on the assumption that the fluid at the outlet of guide vane satisfies the uniform velocity moment condition. The geometry of blade is controlled by the distributed rule of blade angles along the meridional streamline which is described by a fourth-order polynomial. Experiment results demonstrate that the designed guide vane can overcome the drawback of two-dimensional guide vane, enlarge the high efficiency scope and improve the hydraulic performance of centrifugal pump on the off-design operation conditions. In comparison with the performance of the centrifugal pump without inlet guide vane, the peak value of efficiency can be enhanced by 2.13% after the three-dimensional guide vane was being installed. The three-dimensional entire flow field of the centrifugal pump with inlet guide vane is simulated, and the basic principle and mechanism of inlet guide vane pre-whirl regulation are analyzed. The validity of design method has been proved.

引用

页码：2142 / 2151

页数：10

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