![]() ![]() Oxygen reacts with the hydrocarbons in the lubricating oil, causing the oil to slowly oxidize, turn black, and increase the viscosity. Oil flow: 11.Oil 12.Oil cooler 13.Thermostatic bypass valve 14.Oil filter 15.Oil stop valveĭuring the use of compressor oil, it will be affected by heating, oxidation, high-speed shearing, dust pollution and harmful gases. Oil change is an important means to maintain the life of the air compressor.įigure 2: Working principle diagram of screw air compressor system.Īir flow: 1.Air intake filter 2.Air intake valve 3.Compression element 4.Non return valve 5.Air/oil separator vessel 6.Minimum pressure valve 7.After-cooler 9.Water separator with drain In addition, metal corrosion caused by moisture causes a large number of rusts less than 15 microns to circulate with lubricating oil. Moisture in the compressed air causes the lubricating oil to emulsify and lose its lubricating effect. When the dust concentration below 15 microns is too large, the oil must be changed. The filtration accuracy of the oil filter is generally not less than 15 microns, that is to say, the dust less than 15 microns will go into the circulation of lubricating oil. The service life of lubricating oil mainly depends on the operating environment of the air compressor, and moisture and dust content in the air are key factors. Factors Affecting the Service Life of Compressor Oil 1.1 Moisture and Dust Content If the air compressor is always in the environment of high pressure, high temperature and where condensed water exists, the air compressor oil should have excellent high temperature oxidation stability, low carbon deposition tendency, suitable viscosity and temperature performance, good oil-water separability, anti-rust and anti-corrosion, etc.ġ. Air compressor oil is mainly used for the lubrication of the moving parts in the compressor cylinder and the exhaust valve, and plays the role of anti-rust, anti-corrosion, sealing, sound reduction and cooling.
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