Research on Flow Field Characteristics and Performance Test of Fan for Coal Mine Comprehensive Excavation Surface
For complicated rotating axial flow fan flow field characteristic is complex,fan flow fluctuation,easy to cause coal mine ventilation,the study of coal mine comprehensive mining surface fan flow field characteristics,based on the characteristics of the fan fan mathematical model,using the numerical simulation analysis in the Fluent fan flow field physical model set simulation time and parameters.The results show that the fan full pressure and fan is positively correlated with the speed of the increase with the increase of the fan speed,the test results of the efficiency of the fan,the efficiency of the fan with increasing flow increased before decreasing,and the flow of 750 m3/min,the test efficiency is 0.78.In order to ensure the highest operation efficiency,the optimal flow matching can be selected,providing theoretical reference for the efficient operation of the fan in the later stage.
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