Oil-free air compressors are a common type of compressed air equipment used to produce high pressure oil-free air for a variety of industrial applications. Although oil-free air compressors are generally more reliable and easier to maintain than traditional lubricated air compressors, they can still have some common failures. In this article, I will introduce you to some possible oil-free air compressor failures and provide solutions.
1. Compressor overheating: oil-free air compressor will produce high compression heat during the working process, and if the cooling system fails, the compressor may overheat. This may be caused by cooling fan failure, insufficient or blocked cooling water flow, and dirty radiators. Solutions include cleaning the radiator, checking whether the fan is working properly, and ensuring that the cooling water flow is sufficient.
2. Compressor noise is too large: the oil-free air compressor will make noise during normal operation, but if the noise is too large, it may be caused by impeller damage, bearing wear, fan imbalance and other reasons. Solutions include replacing the impeller, replacing the bearing, and rebalancing the fan.
3. Unstable pressure: It is very important for oil-free air compressors to provide stable compressed air, if the pressure is unstable, it may be caused by pressure switch failure, pressure sensor failure or pipeline leakage. Check and repair pressure switches, pressure sensors, and check if there is a leakage problem in the pipeline.
4. Compressor startup difficulties: The startup of oil-free air compressor may encounter difficulties, which may be caused by unstable power supply voltage, starting motor failure, power electronic component failure and other reasons. Solutions include checking the voltage stability of the power supply, replacing the starting motor, or repairing the power electronics.
5. Oil-water separator blockage: The oil-water separator in the oil-free air compressor is used to separate the oil and water in the compressed air to ensure air quality. If the oil-water separator is blocked, there may be too much oil and water in the compressed air, affecting the normal operation of the device. Solutions include regular cleaning or replacement of the oil-water separator.
6. Filter blockage: The filter element in the oil-free air compressor is used to filter small particles in the air to prevent them from entering the compressor. If the filter element is blocked, the air flow may be limited, resulting in reduced equipment performance. Solutions include replacing the filter element regularly.
7. Overload protection trigger: oil-free air compressor usually has overload protection function, when the equipment is overloaded, it will automatically stop to prevent failure. If the overload protection is triggered frequently, it may be caused by excessive load, unstable power supply voltage, or motor failure. Solutions include reducing the load, checking the stability of the power supply or replacing the motor.
In short, the common faults of oil-free air compressors may include overheating of the compressor, excessive noise, unstable pressure, start-up difficulties, blockage of the oil-water separator, blockage of the filter element and triggering of overload protection. Timely inspection and maintenance of equipment and appropriate solutions can ensure the normal operation of oil-free air compressors and extend the life of equipment.