| X type vortex-pump is simple in structure,good wear resistance,good non-blocking performance,apply to transport sewage,with fibers and larger particles, can be a higher rate of transmission gas-bearing liquid.Cyclone pump parameters on the structure study on the impact of pump performance is not yet full,without the sophisticated theory and design methodology,its design is a semi-theoretical semi-empirical,and swirl impeller pump speed and pressure distribution similar to concentric circles,swirl improve pump the performance of the main pump should be reduced axial swirl and circular vortex flow.Are the main way to increase due to reduction of the diameter of cavity,so that the axial vortex is not easy to be closed,to reduce their impact on performance;there is an urgent need for different structural parameters on the performance of hydrocyclone pump-depth study of the impact,in order to design a efficient and stable operation of the pump and provide a theoretical foundation swirl.Vortex Pump past changes in structural parameters of both the numerical simulation or experimental studies of other structural parameters are fixed only to change the parameters of a structure to study the structure parameters on pump performance.This paper attempts to introduce orthogonal experimental design and orthogonal pump swirl at the same time the structure of the seven kinds of parameters change,the final results of 16 different parameters of the cyclone pump model,the use of PRO / E swirl pump all set up three-dimensional model,and division of the GAMBIT grid,the use of more mature models to solve the NS equations closed.Of closed numerical equations,using discrete finite volume method,the use of stress SIMPLEC algorithm amendment.The use of FLUENT software to swirl at the solid-liquid two-phase pump medium,under different flow numerical simulation in making good the results of numerical simulation based on the simulation results calculated organize the structure of 16 different parameters of the flow swirl pump--efficiency and flow - lift curve,the 16 data is divided into 4 groups,each group selected from the optimal efficiency of the hydrocyclone lift pump model,and finally this set of data and 4 senior did swirl type 80X-13.5 Numerical simulation of the results of pump finally make comparison and analysis of the structure,obtained the following conclusions can be used to guide the design of the hydraulic pump swirl. In this paper,Cyclone 80X-13.5-based structural optimization of the main pump research results are as follows:1.By comparing the various models of the flow pump - efficiency,the flow-head look at # 2 model,model # 7,# 13 model than the original model of the efficiency of cyclone pump,lift higher,and have a very wide zone of highly efficient.2.The flow from a variety of models - the efficiency curve can be seen:the diameter of imports,and the most efficient large bias flow,and flow in a small area of the head than the import of small low-lift pumps,efficiency is low.3.The eddy pump may namely be able similarly to guarantee certain lifting under the different design parameter moreover to have the very high efficiency.4.The orthogonal test design has the very great use value to the eddy pump model optimization... |
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