多级离心泵新型空间导叶设计及优化分析

doi:10.3969/j.issn.1674-8530.14.0180

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Abstract In order to improve the performance of multistage centrifugal pumps, a new guide vane was designed. The basic design principle originated from the twisted centrifugal impeller and runner guide vanes design method. By fixing the inner edge line and outer edge line, a twist surface of new guide vane was shaped. The guide vane smooth was linked up with positive and negative vanes, and a twisted blade was formed. The vanes were split into several independent continuous varying flow channels, which helps reduce water loss of guide vanes. For a high-pressure multistage centrifugal pump, different configurations of guide vane were developed. Through the evaluation of the different configurations of guide vane, by means of CFD analysis, the design rule of new-type space guide vane was studied. An optimal configuration was obtained, and by prototype testing the model had better hydraulic performance, its efficiency reached 85.68% at the design point to meet the design requirements, which proved the feasibility of this design method. This method will facilitate energy saving of multistage centrifugal pumps, and provide a useful reference for the development of guide vane.

Key words： centrifugal pumps guide vane computational fluid dynamics design

Received: 31 October 2014

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	Articles by authors
	YUAN Dan-Qing
	HAN Yong-Tao
	CONG Xiao-Qing
	SHI Rong

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YUAN Dan-Qing,HAN Yong-Tao,CONG Xiao-Qing等. Design and optimization of new-type space guide vanes for multistage centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(10): 853-858.

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http://zzs.ujs.edu.cn/pgjx/EN/10.3969/j.issn.1674-8530.14.0180 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2015/V33/I10/853

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