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Introduction of draft fan

May 18, 2020

Draft fans are widely used for ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and ventilation in boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; grain drying and selection; wind tunnel air sources and air cushioning and propulsion, etc. The working principle of the induced fan is basically the same as that of the turbine compressor, only because the gas flow rate is low and the pressure changes little, it is generally not necessary to consider the change of gas specific capacity, that is, to treat the gas as an incompressible fluid.