Research On Flow Field Analysis And Simulation Of Mine Main Fan Based On The Reverse Engineering And CFD

The coal is main part of our country energy, mine main fan is the key technology and equipment of safety production in coal mine. Mine fan which can be normal operation is in relation to the whole mine production efficiency and production safety, the author’s group put forward the research of mining equipment health maintenance system, as for the equipment simulation part it makes mine axial flow fan model simulation, and analyzes its performance and fault characteristics.At first it take model of the axial flow fan structure, in view of the mine axial flow fan structure parameter insufficient, especially the impeller part of the parameters unavailable directly from manufactures, in this paper it takes advantage of the reverse engineering method to make reverse fan model. Firstly through3d scanning it get the point cloud data, then make use of modelling software for the data processing, finally take the reverse modelling. Next by obtaining model grid division, it imports the file to fluid simulation software for solving.The normal state of the flow field in mine axial flow fan is simulated by using FLUENT software, based on the internal flow field simulation of different work condition flow, it get and analyze the performance curve and provides optimization Suggestions for current status of performance of mine axial flow fan. In addition this paper simulates typical fault, and analyzes the flow field characteristic, the cause and law of development of failure, it provides important basis for prescient maintenance of mine fan.