Research on Computer Simulation of Pressure Difference of Tobacco Machinery Single-Stage Axial Flow Vane Fan

Fan is a kind of machinery used to transport gas, mechanical energy from the outside, in the fan to transfer gas into gas energy, to overcome the flow resistance to push the gas forward, so it is also called the fan for the transfer and conversion of energy machinery. It is widely used in other fields such as the tobacco field. According to the working principle, fans can be divided into blade fans and positive displacement fans, and the single-stage axial flow fans in this article belong to blade fans. In this paper, Cfturbo software is used to design the impeller of the axial flow fan, and ANSYS fluent software is used to conduct simulation, mainly discussing the change law of the pressure difference between the inlet and outlet of the axial flow fan under the condition of different number of blades. The final conclusion is that the more the number of blades is determined under other working conditions. The greater the pressure difference between the inlet and outlet of the single-stage axial fan.