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What are the factors that contribute to the formation of carbon deposits in air compressors?
1. High temperature: High temperature is the decisive factor causing the oxidation and deterioration of lubricating oil. The higher the temperature, the faster the oxidation rate, and the greater the possibility of carbon deposition;
2. Pressure: After the air is compressed by the air compressor, the pressure increases, and the oxygen concentration increases, increasing the oxidation rate of the oil and the possibility of carbon deposition;
3. Metal catalysis: Metals play a positive catalytic role in oxidation reactions, accelerating the progress of the reaction;
4. The type of air compressor oil: The quality and dosage of air compressor oil will have varying degrees of impact on the formation of carbon deposits.
Most air compressor explosion accidents are caused by the accumulation of carbon deposits. Carbon deposits are high-temperature products, but they also spontaneously ignite at high temperatures. Usually, the self ignition temperature of carbon deposition is around 180 ℃, and the outlet temperature of the air compressor is generally not higher than 160 ℃. Therefore, under normal operation, carbon deposition will not be ignited. However, when the air compressor experiences momentary high temperature or pressure due to certain faults, the temperature inside the compressor rises sharply, causing carbon deposits to self ignite, causing the oil inside the carbon deposits to rapidly vaporize. When the vaporized oil and gas coexist with high concentrations of oxygen and high temperatures in compressed air, it can cause the compressor to explode and cause accidents.
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