The difference between an oiled air compressor and an oil-free air compressor
2021-11-26
From the point of view of oil content, the oily and non-oily air compressors generally refer to the oil content of the air discharged from the exhaust port of the air compressor.
Generally, the oil content of oil compressors is relatively large, and the oil content of oil-free machines is 0.01ppm, so this oil content can be used to distinguish whether the air compressor is oily or oil-free. There is also a completely oil-free air compressor, which is not lubricated with oil, but with resin material lubrication, so the final gas discharged without oil is called a completely oil-free air compressor.
From the structural point of view, the bearings of oil-free air compressors and oil-free air compressors are not much different. But in terms of working principle, there are obvious differences between the two. No oil is involved in the operation of oil-free air compressors, whether it is an oil-free piston engine or an oil-free screw compressor, they will generate a lot of high temperature during operation.
If it is an air compressor with oil, the participation of oil will take away the high temperature generated during the compression process of the air compressor, thereby cooling the machine.
However, oil-free air compressors do not have the participation of oil, and a large amount of high temperature is also generated during the compression process. How to solve the high temperature of the compressor to ensure the normal operation of the machine? In fact, oil-free air compressors use a kind of Teflon Or the special high-temperature resistant material of molybdenum disulfide replaces oil to solve the high temperature in the air compressor compression process, thus achieving the purpose of oil-free compression.
Compared with oil-free air compressors, oil-free air compressors are cleaner and environmentally friendly to a certain extent. Therefore, institutions such as hospitals, laboratories, schools, etc. are very suitable for the use of oil-free air compressors. These institutions also like to use oil-free air compressors. Oil air compressor.
