The difference between induced draft fan and blower

1. The induced draft fan is used to extract air, and the blower is used to blow air.

2. The air volume of the induced draft fanChina Blower Fans Suppliers is greater than the air volume of the blower, thus forming a negative pressure combustion.

3. The induced draft fan is installed at the end of the boiler to extract hot flue gas from the furnace; the blower is installed at the head of the boiler to blow in fresh air from the boiler.

4. The induced draft fan provides the air volume from the system, and the blower takes away the air volume.
Induced draft fans are widely used for ventilation, dust exhaust and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced air in boilers and industrial furnaces; cooling and cooling in air conditioning equipment and household appliances Ventilation; drying and selective delivery of grains; air source of wind tunnel and inflation and propulsion of hovercraft, etc.

The working principle of an induced draft fan is basically the same as that of a turbo compressor, except that the gas flow rate is low and the pressure changes little. Generally, there is no need to consider the change of the gas specific volume, that is, the gas is treated as an incompressible fluid.