Structure Optimisation and Flow Control Technology of Multistage Centrifugal Pumps
The study was conducted to optimise the structure of a multistage centrifugal pump through computational fluid dynamics(CFD)analysis and experimental tests.Impeller blade angle adjustment and diffuser optimisation are adopted to improve the pump efficiency.Meanwhile,an intelligent flow regulation system based on fuzzy PID control is developed to achieve precise flow control of the pump.The results show that the optimised multistage centrifugal pump efficiency is increased by 7.3％,and the flow control accuracy reaches±1.1％.The research results provide a new technical solution for the design and control of energy-efficient multistage centrifugal pumps.
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