Industrial centrifugal fans are generally divided into process ventilation centrifugal fans and factory ventilation centrifugal fans, and they are widely used in industrial production and construction fields. Proper use and maintenance of centrifugal fans can ensure their service life and maintain better stability.
Centrifugal fans consist of main components such as the casing, impeller, shaft, and bearing box, and are generally driven by electric motors. Our daily maintenance revolves around these components to maintain optimal performance.
I. Preparations Before Installation and Commissioning
- Reasonable Installation Location: When installing the centrifugal fan, choose a dry, ventilated place, and keep an appropriate distance from walls and other objects to avoid affecting its normal operation.
- Stable Power Supply: Before using the centrifugal fan, check the power supply voltage to ensure it is stable within the rated range to avoid damage to the motor.
- Pre-startup Inspection: Before starting the centrifugal fan, check if the impeller and bearings are in normal condition and if there are any abnormal sounds.
- Correct Speed Adjustment: The speed of the centrifugal fan can be adjusted using a frequency converter or adjustment valve. Set the speed reasonably according to actual needs.
II. Daily Maintenance
- Inspect the centrifugal fan daily to check for foreign objects in the impeller, looseness in safety components, and normal vibration. Address any abnormalities promptly.
- At the end of each shift, clean the impeller surface and air inlet and outlet, removing dust and debris from the inlet filter.
- Check the lubrication condition of the machine. Lubricate the impeller bearings, motor bearings, and transmission device regularly. Lubricating oil or grease should be injected during routine maintenance.
- Inspect the electrical components for loose or damaged wiring and ensure the motor connections are correct and not abnormal. If necessary, shut down the fan and clean the motor surface of dust and dirt.
III. Periodic Maintenance
- Filter Inspection and Replacement: Check the filters monthly for cleanliness and replace filter elements as needed. Ensure safety during replacement by shutting down the fan and taking insulation measures to prevent electrical accidents.
- Lubrication: Maintain the machine every three months. Check the lubrication system’s normal operation and change the lubricating oil. Clean the impeller bearings while the fan is off, ensuring operator safety.
- Fan Cleaning: Clean the fan thoroughly every six months, removing dust, and clearing pipes and outlets to improve efficiency and reduce energy consumption. Ensure the fan is off during cleaning to prevent accidents.
- Inspection of the Chassis Linkages: Regularly check for foreign objects such as sand and sediment and clean them promptly.
- Wear and Tear Inspection: Regularly check for wear on the fan. If scratches or grooves are found on the impeller, repair or replace it promptly.
IV. Special Situations
- If the fan is not used for a long time, dismantle and clean it thoroughly, and dry it to prevent rust and oxygen corrosion, which can affect its service life.
- If there are abnormalities or abnormal sounds during fan operation, shut down immediately and troubleshoot the cause.
- In case of operator errors causing malfunctions during fan use, stop the fan immediately, assist any injured personnel, and promptly repair and maintain the equipment. Safety must be ensured during training and operations.
Regular maintenance and service of centrifugal fans are essential for their operation. Maintenance schedules should be detailed and records should be regularly compiled and archived. Maintenance activities must be carried out in strict accordance with the requirements to ensure long-term stable operation of the equipment. Additionally, fostering a safety-conscious culture and establishing work norms are necessary for the smooth execution of maintenance tasks.
Post time: Jul-03-2024