Does carbon deposition in oil sludge of screw air compressor cause explosion accident

Air compressor users are often troubled by deposits such as sludge carbon deposits. These harmful substances affect the operating efficiency of the air compressor, increase maintenance costs, and cause serious accidents such as shutdown and explosion.

reasons for the formation

high temperature: high temperature is the decisive factor that causes the oxidation and deterioration of lubricating oil. The higher the temperature, the faster the oxidation rate, and the greater the possibility of forming carbon deposits;

pressure: After the air is compressed by the air compressor, the pressure increases and the oxygen concentration increases, which increases the oxidation rate of the oil and the possibility of the formation of carbon deposits;

metal catalysis: metal plays a positive catalytic role in the oxidation reaction and accelerates the reaction;

the type of air compressor oil: the quality and addition of air compressor oil will have different degrees of influence on the formation of carbon deposits. If mineral type air compressor oil is used, the unsaturated components in the base oil are more likely to form carbon deposition tendency.

Air compressor explosion accidents are mostly caused by the accumulation of carbon deposits. Carbon deposition is a high-temperature product, but it also spontaneously ignites at high temperatures. Usually, the self-ignition temperature of carbon deposits is about 180 ℃, and the outlet temperature of air compressor is generally not higher than 160 ℃. Under normal operation, carbon deposits will not be ignited. However, when the air compressor due to some fault instantaneous high temperature or high pressure, the air compressor temperature rises sharply, causing spontaneous combustion of carbon deposits, making the oil in the carbon deposits quickly vaporized. When the vaporized oil and gas and the high concentration of oxygen in the compressed air and high temperature exist at the same time, it will cause the compressor to explode and cause an accident.

Control of sludge carbon deposition in air compressor

1. Choose clean high-quality air compressor oil, and replace the air compressor oil regularly according to the maintenance requirements.

2, the selection of high-quality maintenance parts and materials, according to the maintenance requirements of regular replacement. The use of high-quality oil, oil filter, air filter, can effectively filter external and endogenous pollution sources, to ensure the normal operation of the air compressor.

3. Maintain normal working temperature and working pressure to ensure effective ventilation of air compression station.

4. Take auxiliary cleaning method to keep the compressor clean, choose mature online cleaning fluid, clean the air compressor regularly, and keep the head rotor and oil circuit clean.