During prolonged continuous operation of screw-type air compressors, it is inevitable that some external contaminants enter the lubricating oil inside the compressor, such as moisture, dust, and metal particles from the air. Common lubricating oils (coolants) on the market are primarily composed of hydrocarbons. Under the high-temperature and high-pressure conditions during compressor operation, coupled with the catalytic effects of moisture and metals, the lubricating oil is more prone to oxidation, leading to oil degradation. The resulting oxides can disrupt the normal operation of the compressor, cause severe damage to the unit, and undoubtedly increase operational costs.
The above describes the general process of viscous deposits forming inside the compressor, but a deeper issue is carbon buildup. If high temperatures in the compressor are not addressed promptly, these gummy oxides further react with oxygen, impurities, and other components under sustained high temperature and pressure, transforming into asphalt-like substances and carbonizing, resulting in carbon buildup. The factors influencing carbon buildup can be summarized as follows:
1. High Temperature: High temperatures are a critical factor causing lubricating oil degradation. The higher the operating temperature of the compressor, the more intense the oxidation reaction of the lubricating oil, increasing the likelihood of carbon buildup.
2. Pressure: After the air is compressed by the main unit of the compressor, the oxygen content per unit volume increases, potentially accelerating the oxidation process of the lubricating oil.
3. Metal Particles: These particles may come from external sources or be generated by internal wear and tear during compressor operation. Regardless of the source, these metal particles catalyze the oxidation of the lubricating oil, speeding up the reaction process.
4. Oil Quality: If lower-quality oil is used, its unsaturated components may be more prone to carbon buildup under high temperatures.
So, what measures can be taken to reduce the likelihood of carbon buildup and ensure the stable operation of the compressor?
1. Strictly adhere to the maintenance schedule for timely and quantitative servicing of the Fusheng screw air compressor. Replace the oil filter, oil separator, air filter, and lubricating oil based on usage time. It is recommended to use genuine parts from the manufacturer for all required components.
2. Record the compressor’s operating parameters daily to check for abnormally high temperatures. Regularly clean the radiator to ensure its cooling efficiency, and maintain proper ventilation in the compressor room to ensure a well-ventilated compressor station.
3. Periodically release a small amount of lubricating oil from the drain port to check for sticky, gummy substances. If such conditions are observed, add a certain amount of online cleaning agent to the oil tank to thoroughly clean the pipelines. Then, discharge the mixture, perform routine maintenance, and replace the three filters and lubricating oil.