Centrifugal fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas.

Centrifugal fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels,cooling towers, vehicles, shipsand buildings, ventilation and induced air for boilers and industrial furnaces, cooling and cooling in air conditioning equipment andhousehold appliances Ventilation, drying and selective delivery of grains, air source in wind lunnels and inflation and propulsion ofhovercraf,etc.

Maintenance and storage of centrifugal fans:

1. The operating environment should be kept clean and tidy. The surface of the centrfugal fan should be kept clean.There should beno debris at the air inlet and outlet. The dust and other debris in the fan and pipeline should be cleaned regularly.

2. The centrifugal fan should be stored in a dry environment to prevent the motor from getting damp. When the fan is stored in theopen air, there should be defensive measures. The fan should be prevented from bumping during storage and handling to avoid damage tothe fan.

3. The centrifugal fan can only be operated under normal conditions. At the same time,it is necessary to ensure that the power supplyfacilties have suficient capacity and stable voltage, and itis strictly forbidden to run without phase. The power supply Iine must be adedicated line and should not be used for long-erm temporary power supply.

4. During the Operation of the centrifugal fan,it is found that the fan has abnormal noise, the motor is seriously heated, the shell iselectrified, the switch is tripped, and it cannot be started. It should be shut down immediately for inspection. In orderto ensure safety,maintenance is not allowed during the operation of the fan. After the maintenance, a trial run should be carried out for aboutfive minutes toconfirm that there is no abnormal phenomenon before starting the operation.

5. Iregularly add or replace lubricatinggrease on the bearing according to the operating environment (the motor enclosed bearingdoes not need to replace the lubricating grease during the service life),In order to ensure g0od lubrication of the fan during operation,thenumber of refueling shall not be less than 1000 hours/ The bearings and motor bearings are sealed, and 13 of the inner and outer rings ofthe bearing are filled with z1-3 lithium-based lubricating grease. Running without oil is strictly prohibited.