According to the oil content of the exhaust gas, the air compressor can be divided into oil air compressor, micro oil air compressor and oil free air compressor. The following is a detailed analysis of the oil content of these three air compressors:
1. oil air compressor
- oil content: Oil air compressor in the exhaust process, will contain a certain amount of lubricating oil. The specific oil content varies depending on the model, design, working conditions and other factors, but the oil content is generally large.
- Features oil compressors usually use lubricating oil to lubricate and cool the inside of the compressor, which helps reduce wear, improve efficiency and extend equipment life. However, the exhaust gas contains lubricating oil, which may cause pollution to some occasions that require pure air (such as food, pharmaceutical and other industries).
2. micro-oil air compressor
- oil content: The micro-oil air compressor reduces the lubricating oil content in the exhaust gas to a lower level through the internal oil removal device, and the general oil content is ≤ 0.1 mg/m & sup3;.
- Features: The micro-oil air compressor reduces the oil content in the exhaust while maintaining the advantages of the oil air compressor. It is suitable for occasions where the air quality requirements are not particularly strict. Compared with the oil-free air compressor, the cost of the micro-oil air compressor is more economical, and it can meet the needs of a certain range of use.
3. oil-free air compressor
- oil content oil-free air compressor usually refers to an air compressor with extremely low or zero oil content in the exhaust gas. The oil content of oil-free air compressors in the general sense may be around 0.01ppm, while the real oil-free air compressors (such as water-lubricated air compressors, such as water-lubricated oil-free screw air compressors produced by Shanghai Granklin Group) are completely oil-free.
- Features oil-free air compressor avoids the pollution of compressed air by lubricating oil, and is especially suitable for occasions that require high-purity air (such as electronics, medical, food and other industries). In addition, the oil-free air compressor also has the advantages of high equipment stability and long service life. However, it should be noted that not all air compressors designated as "oil-free" can meet the true oil-free standards, so they need to be carefully screened when choosing.
Summary
the oil content of air compressor is one of the important indicators that affect its application field and performance. When choosing an air compressor, the appropriate type should be selected according to the requirements of the air quality in the specific application. For occasions requiring high-purity air, oil-free or micro-oil air compressors should be selected; for occasions where air quality requirements are not particularly strict, oil air compressors can be selected to reduce costs. At the same time, it is necessary to pay attention to regular maintenance and inspection of the oil content and other performance indicators of the air compressor to ensure the normal operation of the equipment and extend the service life.
