Oil-free air compressor is a key equipment widely used in various industrial fields, its role is to compress air into high pressure gas to meet the needs of different processes. Compared with the traditional oil air compressor, the oil free air compressor has higher health performance and a wider range of applications. This paper will introduce the principle and working process of oil-free air compressor in detail.
The principle of oil-free air compressor is mainly based on the following key technologies: air cleanliness, sealing technology and lubrication technology.
1. Air cleaning technology: During the intake process, the oil-free air compressor removes moisture, impurities and particles in the air through air filters, coolers and dryers to ensure that the air entering the compressor is clean and dust-free. This can effectively avoid the corrosion and wear of the internal components of the compressor by pollutants in the air and extend the service life of the compressor.
2. Sealing: The key component of the oil-free air compressor - the compressor uses efficient sealing technology, such as bimetal seal and magnetic drive seal. These sealing technologies can reduce or eliminate gas leaks and improve the efficiency and stability of the compressor. At the same time, the sealing technology can also prevent external dust and moisture from entering the compressor to ensure the normal operation of the compressor.
3. Lubrication technology: oil-free air compressors use special lubrication methods, such as oil-free lubrication and dry lubrication. Oil-free lubrication reduces friction and wear between metal parts by compressing the surface of a special material inside to form a lubricating film. Dry lubrication is done by spraying a dry lubricant inside the compressor so that it mixes with the air to form a dry lubricating film. These lubrication technologies can not only ensure the normal operation of the compressor, but also avoid oil pollution of the environment.
The working process of oil-free air compressor can be summarized as the following steps:
1. Intake air: The oil-free air compressor inhales the outside air into the compressor through the intake filter. During the intake process, the air passes through a cooler and dryer to remove moisture and impurities from it.
2. Compression: The air inlet is compressed by the moving parts inside the compressor, gradually increasing its pressure and temperature. In this process, the sealing technology of the oil-free air compressor plays an important role in ensuring that the air does not leak.
3. Cooling: Due to the large amount of heat generated during the compression process, the oil-free air compressor needs to cool the compressed air to the appropriate temperature through the cooler. The cooled air can further reduce the moisture content and improve the gas quality.
4. Lubrication: Inside the compressor, oil-free air compressors use special lubrication methods to reduce friction and wear between moving parts to ensure the normal operation of the compressor.
5. Exhaust: The air after compression and cooling treatment enters the gas storage tank and accumulates in the gas storage tank to meet the demand for gas in different processes. When air is needed, it flows out of the storage tank through the exhaust pipe and is supplied to individual process equipment or systems.
To sum up, oil-free air compressors achieve efficient compression of air through air cleaning, sealing technology and lubrication technology to provide clean compressed air. It plays an important role in industrial production and is widely used in automobile manufacturing, electronics industry, pharmaceutical manufacturing and other fields.