Effect of vanes diffuser geometric components on shape of the Q-H-curve

15th International Scientific and Engineering Conference Hermetic Sealing, Vibration Reliability and Ecological Safety of Pump and Compressor Machinery HERVICON+PUMPS-2017

机械制造;生态环境科学

Kostornoi, A.S.^1 ; Lugova, S.O.^1 ; Olshtynskyi, P.L.^1

JSC VNIIAEN, 2, Zheleznodorozhnaya str., Sumy

40003, Ukraine^1

关键词: Comparative tests;    Geometric component;    Intermediate stage;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/233/1/012003/pdf
DOI  :  10.1088/1757-899X/233/1/012003

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The article deals with the effect of the vanes diffuser geometric components at the inlet (downstream of an impeller) and at the outlet (upstream of the impeller) on the shape and steepness of the Q-H-curve. Intermediate stage comparative curves based on centrifugal pump tests are given with corrections to the vanes diffuser components were made. This allows changing steepness of the Q-H-curve. Comparative tests of the intermediate stage with different types of vanes diffusers (with continuous crossover channels and discontinuous crossover channels) are shown.