OPTIMUM
DESIGN SYSTEM OF LOW-SPECIFIC OPEN-IMPELLER HIGH-SPEED CENTRIFUGAL PUMP
ZHANG Jianci1 CUI Baoling2
LI Yi2ZHU Zuchao2 CHEN Ying3
(1. Western College, Zhejiang
University of Technology, Quzhou 324006;
2. Zhejiang Provincial Key Laboratory
of Modern Textile Machiner, Zhejiang Sci-tech University, Hangzhou
310018;
3. State Key Laboratory of Fluid
Power Transmission and Control, Zhejiang University, Hangzhou 310027)
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Abstract:
The
optimum design system based on the N-S equation and S-A turbulent model
is carried out on low-specific open-impeller high-speed centrifugal
pump, which includes four parts, optimum design of basal parameters,
performance prediction, flow analysis and information feedback. The
design example and experimental study are carried out on an open
high-speed centrifugal pump. The satisfied performances are obtained,
the head-capacity characteristic curve of pump almost is a straight
line, the head coefficient reaches above 0.7, the suction performance
also satisfies the demand, the relative velocity and pressure
distribution in impeller channel are reasonable. This shows that the
excellent-performance low-specific open-impeller high-speed centrifugal
pump can be gained adopting the increasing-capacity design method. The
proposed method is of importance for the design of open-impeller
centrifugal pump.
Key word: Open
impeller High-speed centrifugal pump Design method Numerical
simulation Experimental study
CLC No: GH311
国家自然科学基金(50379047)、浙江省自然科学基金(R503170)和教育部博士点基金(20030335009)资助项目,Received
20050704, received in revised form 20060112
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