The formation and harm of carbon deposit in air compressor

The formation and harm of carbon deposit in air compressor

How does air compressor coke formation form?

The reasons for the formation of carbon deposits in air compressors are more complicated. In terms of air compressor oil lubrication, the main reason is that the oil used in the internal lubrication system of the air compressor is often in the form of mist and high temperature, high pressure, high oxygen partial pressure air and metal The contact of the catalyst causes the air compressor oil to rapidly oxidize and deteriorate. On the other hand, the continuous evaporation of the air compressor oil makes the oil of the heavier components remain in the exhaust valve cavity and exhaust pipe on the top of the piston, which is continuously heated and decomposed, dehydrogenated and polymerized. The product is mixed with the mechanical impurities in the inhaled gas and the metal wear debris in the compressor, and is deposited on the surface of the body to be further heated, which becomes carbon deposits.

　　 What is the hazard of carbon deposits in air compressors?

When the air compressor produces more carbon deposits at the exhaust valve and exhaust pipe, the exhaust valve will not move flexibly and close tightly, causing the exhaust gas to flow back into the cylinder and repeatedly compress (ie, secondary compression) to make the gas The temperature rose rapidly. The high gas temperature intensifies the oxidation reaction of the lubricating oil, and the reaction heat cannot be released in time, causing the gas temperature in the exhaust pipe to continue to rise. When the temperature reaches the spontaneous ignition point of the lubricating oil, the air compressor oil accumulated in the coke begins to burn incomplete combustion products, the thermal decomposition products of the oil, the oil mist in the gas and the air to form an explosive gas.