Research on the Working Performance of Centrifugal Fan Based on Blade Number Analysis
In order to solve the shortcomings of 6-30 centrifugal fan with low efficiency and high noise during operation.On the basis of the analysis of the mechanism of the influence of the number of fan blades on the performance of the fan,CFD fluid simulation and analysis software was used to simulate the fan operation status and noise under different blade numbers.The results show that the fan has the best performance when the number of fan blades is 11,and its operating full pressure is improved by 7.3％compared with the pre-optimisation period;the operating efficiency is improved by 1.64％compared with the pre-optimisation period;and the operating noise is reduced by 1.2 dB compared with the pre-optimisation period.
centrifugal fannumber of bladesCFD simulation analysistotal pressureeffsciencynoise
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