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First, let’s talk about the working principle of the centrifugal fan: the centrifugal fan is based on the principle of converting kinetic energy into potential energy, using a high-speed rotating impeller to accelerate the gas, then decelerate, change the flow direction, and convert the kinetic energy into potential energy (pressure). In a single-stage centrifugal fan, the gas enters the impeller from the axial direction, changes to the radial direction when the gas flows through the impeller, and then enters the diffuser. In the diffuser, the gas changes the direction of flow and the cross-sectional area of the pipe increases to decelerate the gas flow. This deceleration effect converts kinetic energy into pressure energy. The increase in pressure mainly occurs in the impeller, followed by the expansion process. In a multi-stage centrifugal fan, a refluxer is used to make the airflow into the next impeller to generate higher pressure
Next, let's talk about its function: a centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced air for 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.
Finally, let me talk about which parts of it need attention: the wear of the centrifugal fan drive part is a common equipment problem, including the bearing position of the exhaust fan, the wear of the bearing chamber, and the wear of the blower shaft bearing.
Hangzhou Jinjiu Electric Co., Ltd. is a Centrifugal Fan Company and also has other products such as Air Purification Fan. Welcome to visit our official website.