The role of air compressor lubricating oil and the use of misunderstandings

Air compressors have very strict requirements on lubricating oil. Therefore, the correct selection of air compressor oil for reasonable lubrication is an important measure to ensure the safe and stable operation of the compressor. Next, let's take a look at the role of air compressor lubricating oil and what are the misunderstandings in use!

The role of lubricating oil:
The lubricating oil plays the role of lubricating and cooling. After the lubricating oil enters the bearing, due to the effect of adhesion, the oil rotates with the rotating shaft, forming an oil film in the bearing to lift the rotating shaft, so that the bearing pad and journal realize liquid Lubricated to ensure the long-term quiet operation of the unit.


Factors affecting the performance of lubricating oil for screw air compressors:
As the running time of lubricating oil increases, impurities in the oil will gradually increase, and its lubricating performance and effect will also be greatly reduced. The main factors affecting the lubricating performance of lubricating oil are as follows:

1. During the operation of the unit, the operating temperature is low, the lubricating oil is condensed into water, and the oil contains water, causing the lubricating oil to be polluted and affecting the lubricating performance of the oil.
2. During the long-term operation of the equipment, impurities such as particles generated due to friction and wear enter the oil, affecting the lubrication effect.
3. Due to improper protection, the lubricating oil enters dust, metal particles or other oil products during storage, addition or operation, causing the oil to be polluted.
4. During the operation of the unit, due to the failure of the shaft end seal, the fluctuation of the process system or the operation error, the harmful gas in the environment leaks into the oil, such as chlorine gas, sulfur dioxide, hydrogen sulfide and other corrosive gases, which pollute the lubricating oil and affect the lubrication of the oil. performance. At the same time, these corrosive gases cause corrosion to the pipelines, valves, and configurations in the lubrication system, and the corrosive substances formed also pollute the lubricating oil, reducing the lubricating performance and results of the lubricating oil.

Mistakes in the use of lubricating oil:
During the use of the compressor, severe friction occurs due to changes in the structure of the components, so solid friction must be changed into liquid friction. To give full play to the role of lubricating oil, the compressor must be lubricated reliably, reduce wear and prolong the service life of the compressor. Attention must be paid to the selection and use of air compressor oil. However, some equipment maintenance personnel often have some misunderstandings in the use of lubricating oil, resulting in unnecessary losses.