BLDC hair dryer custom.Performance characteristics and functions of multi wing centrifugal fans

　　Performance characteristics of multi wing centrifugal fans: Multi wing centrifugal fans are essentially a variable flow and constant pressure device. Because its working principle is basically the same as that of a turbine compressor, but due to the low gas flow rate and little pressure change, it is generally not necessary to consider changes in gas specific volume, that is, treat gas as an incompressible fluid. When the speed is constant, the pressure flow theoretical curve of the centrifugal fan should be a straight line. Due to internal losses, the actual characteristic curve is curved. The pressure generated in a centrifugal fan is greatly affected by changes in inlet temperature or density. For a given intake volume, the pressure generated is the lowest at the highest intake temperature (lowest air density). For a given pressure and flow characteristic curve, there is a power and flow characteristic curve. When the blower operates at a constant speed, the required power for a given flow rate increases with a decrease in intake air temperature.

　　Multi wing centrifugal fan function

　　Multi wing centrifugal fans are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; Ventilation and induced draft of boilers and industrial kilns; Cooling and ventilation in air conditioning equipment and household electrical equipment; Drying and selection of grains; Wind tunnel wind source and inflation and propulsion of hovercraft.

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