From the point of view of oil content, the oil content and the oil-free content of the air compressor generally depend on the oil content of the gas exhaustion discharged from the air compressor, so we always use the oil content of the air compressor to distinguish whether it is oil-based or oil-free air compressor. There is also a completely oil-free air compressor, which is not lubricated by oil, but lubricated by resin material, so the final discharged gas does not contain oil, which is called an all-oil-free air compressor.
From a structural point of view, there is no difference between the bearings of an oil-free air compressor and an oil-filled air compressor. But in terms of working principle, there are obvious differences between the two. There is no oil involved in the operation of the oil-free air compressor. Whether it is an oil-free piston machine or an oil-free screw machine, they will generate a lot of high temperature during operation. Participation 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 also generate a lot of high temperature during the compression process. How to solve the high temperature and ensure the normal operation of the machine? In fact, a special high-temperature resistant material called Teflon or molybdenum disulfide is used inside the oil-free air compressor, which replaces the oil to solve the high temperature in the compression process of the air compressor, thus achieving the purpose of oil-free compression.
Compared with oil-free air compressors, oil-free air compressors are cleaner and more environmentally friendly to a certain extent. Therefore, institutions such as hospitals, laboratories, schools and other institutions are very suitable for the use of oil-free air compressors. These institutions also prefer to use oil-free air compressors. Oil-air compressor.
