The maintenance of steel plant fans mainly includes daily maintenance, regular inspections, and deep maintenance, with specific details as follows:
Daily Maintenance
1. Appearance Inspection: Check the fan casing for signs of damage daily, such as cracks, deformation, etc., and also check whether the connections of the inlet and outlet pipes are tight, with no looseness or leakage.
2. ‌Operation Status Check‌: After starting the fan, pay attention to whether its sound is normal, and whether there are any abnormal friction or vibration noises. Observe whether the fan's startup time and speed are stable‌.
3. Cleaning Work: Clean the surface of the fan at least once a week, using a clean, dry soft cloth to wipe the fan casing and remove dust and dirt. Areas that are prone to dust accumulation, such as the air inlet and around the motor heat sink, should be重点清洁.
4. Fastener Inspection: Inspect the fasteners of the fan weekly to ensure there are no loose parts. Use appropriate tools to gently tighten the screws, but avoid over-tightening.
Periodic Inspection and Maintenance
1. Lubrication Treatment: Perform lubrication maintenance once a month, selecting the appropriate lubricant based on the type of fan and the requirements of the user manual. The key lubrication point is the bearings, and care should be taken not to use too much grease during lubrication.
2. ‌Performance Testing‌: Conduct a simple fan performance test once a month, including measuring parameters such as airflow, wind pressure, and motor current. Compare the measurement results with the rated parameters, and further inspection is required if anomalies are found‌.
3. Impeller Inspection: Conduct a detailed inspection of the fan impeller every quarter, disassemble the casing (if possible), and check for wear, deformation, or corrosion on the blades. Minor damage can be repaired, while severe damage requires replacement.
4. ‌Bearing Maintenance‌: Regularly check the lubrication oil supply status of the bearings to ensure that the oil is sufficient and not deteriorated. Change the lubrication oil at least once every six months, with the first oil change occurring approximately after 200 hours of bearing operation‌.
5. ‌Electrical Safety Inspection‌: Check whether the motor connections are loose or aged, and whether the insulation performance is good. Ensure that the motor's heat dissipation is good to avoid damage due to overheating‌.