Increase of economy of torque flow pump with high specific speed

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

Gusak, A.G.^1 ; Krishtop, I.V.^1 ; German, V.F.^1 ; Baga, V.N.^2

Department of Applied Fluid Mechanics, Sumy State University, 2rd Rimsky-Korsakov st., Sumy

40007, Ukraine^1

Technical Thermophysics Department, Sumy State University, 2rd Rimsky-Korsakov st., Sumy

40007, Ukraine^2

关键词: Analytical and numerical methods;    Constructive solutions;    Geometrical dimensions;    High specific speed;    Moment distribution;    Numerical research;    Pump characteristics;    Spatial geometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/233/1/012004/pdf
DOI  :  10.1088/1757-899X/233/1/012004

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Torque flow pumps are widely spread types of energy machines, which are used in majority of modern branches of industry for pumping of dirty media. The main task of researchers of torque flow pumps is increase of such pumps effectiveness for higher feed. Hydraulic losses for torque flow pumps are caused by working process of such pumps and are inevitable. Decrease of losses can be obtained by means of optimization of hydraulic flow part geometry. Modern approach to design of pump outlet introduces new constructive solutions which can increase economy of torque flow pumps. The aim of this research is increase of economy of torque flow pumps by means of application of spatial outlet and investigation of its geometry on pump characteristics. Analytical and numerical methods of liquid flow research for hydraulic flow part of torque flow pump were used in this paper. Moreover, influence of hydraulic flow part geometry of different designs of "Turo" type torque flow pumps outlets on pump characteristics was investigated. Numerical research enabled to study process of energy transfer of torque flow pump and evaluate influence of geometrical dimensions of spatial spiral outlet on its characteristics. Besides numerical research confirmed introduced regularity of peripheral velocity distribution in outlet. Velocity moment distribution in outlet was obtained during implementation of numerical research. Implemented bench tests of torque flow pump prototypes enabled to obtain real characteristics of pump and confirm effectiveness of spatial geometry of outlet application for such pump.