Design improvement of a centrifugal pump for transporting salt crystals

Asian Working Group- IAHR's Symposium on Hydraulic Machinery and Systems

Wang, J.Q.^1 ; Li, H.Y.^1 ; Luo, X.W.^1

Department of Thermal Engineering, Tsinghua University, Beijing, China^1

关键词: Design and optimization;    Design improvements;    Erosion conditions;    Geometry parameter;    Hydraulic performance;    Lagrangian particle model;    Liquid-solid two phase flow;    SST turbulence models;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/163/1/012050/pdf
DOI  :  10.1088/1755-1315/163/1/012050

来源: IOP

【 摘 要 】

This paper treats the design and optimization of a centrifugal salt-pump working under liquid-solid two phase flow condition. The design parameters are referred to a salt pump used in a salt field in Shandong Province. The design method is based on one-dimension theory, while the optimization are conducted by modifying the meridional shape and geometry parameters including wrap angle and the blade number of the pump impeller. Using the ANSYS-CFX software, and the RANS method coupled with the k-w SST turbulence model for the simulation of liquid phase flow, while the Lagrangian Particle model for solid phase, the two-phase flow and erosion conditions are studied inside the pump. The result shows that the wrap angle and blade number have remarkable influence on the hydraulic performance, internal flow, collision risk and erosion wear conditions. Based on the numerical results, the preferable geometry parameters for salt pump design are proposed.