The working principle of pump and fan - tubular fan

In recent years,thanks to the development of air conditioning technology requires a small volume,low noise,pressure head properly and easy to match the buildings on the installation of small fan.Tubular fan is wholesalemotor.blogspot.com to adapt to the requirements of the new fan.Tubular fan main features is as follows (figure 1,6):(1) are generally more vane impeller forward leaf type,but the two end face is closed.(2) the width of the impeller b without limit,when the width increasing.Flow also increases.(3) tubular fan don't like the centrifugal ac electric motor fan is on the chassis sides open axial airflow into the fan,but open chassis part directly radial flow into the fan.Air flow across the leaf twice.Adding some auxiliary fan in the impeller of the fixed guide vane,to improve the air condition.(4) on the performance,the efficiency of auxiliary fan is low,generally about 30% 50%.ac motor capacitor (5) the air inlet and outlet are rectangular,easy to match the building.diesel generators prices Tubular fan still exist many problems to be solved.Especially the geometric shape of each part has a significant effect on its performance.Imperfect structure and completely unable to work,but small turbine is steadily expanding the scope of application of the fan.