2026-04-10Views：
Why frequency conversion air compressor maintenance is much more expensive?
● Must choose high quality lubricating oil
frequency conversion air compressor for lubricating oil quality requirements are much higher than the frequency air compressor, can not be used according to the standard selection of lubricating oil frequency air compressor. The reasons are as follows:
1. Frequency conversion air compressor is easy to accumulate water at low frequency, and the water resistance of lubricating oil is much higher than that of power frequency air compressor;
3. The operating temperature of the frequency conversion air compressor is higher than that of the power frequency air compressor, so the temperature resistance of the lubricating oil is much higher than that of the power frequency air compressor. To put it simply, the same type of air compressor, frequency conversion air compressor on the quality of lubricating oil requirements, 1-2 grades higher than the power frequency air compressor. Therefore, the frequency conversion air compressor must choose high-quality lubricating oil 1-2 grades higher than the power frequency air compressor.
● High quality oil shall be selected
because of the frequency and pressure changes, the displacement of the variable frequency air compressor will also change, and the oil mist content in the oil barrel will also change. The change of the displacement and the oil mist content will lead to the change of the oil resistance. For example, when the pressure of a variable frequency air compressor is maintained at 6kg full speed, its displacement is much greater than that of a power frequency air compressor with 6 to 8kg loading and unloading.
If the displacement is large, the oil mist content in the oil barrel will also increase, and the flow rate of compressed air when passing through the oil will also increase, which is prone to high fuel consumption and high internal pressure, and the high flow rate will damage the oil. increase.
Similarly, the variable frequency air compressor is always in a loading state. Unlike the power frequency air compressor, which is divided into loading and unloading, the loading time of the variable frequency air compressor is much higher than that of the power frequency air compressor. When selecting variable frequency air compressor oil, these factors must be considered.
Frequency conversion air compressor is easy to accumulate water, and when there is more water, it is easy to damage the filter paper of oil, resulting in high oil consumption or oil running. For example, DB2132 oil for 55kW power frequency air compressor is very stable, but the same oil is installed on 55kW frequency conversion air compressor, and the stability is not high.
Some machines will consume a lot of oil or run off oil after more than 2000 hours of 1000. It can be seen that the requirement of frequency conversion air compressor for oil is much higher than that of power frequency air compressor. When selecting frequency conversion air compressor oil, these factors must be considered.
Let's think about it carefully. In the past five years, does the stability of many oil components feel not as good as that of five years ago?
The main reason is that in recent years, there are more and more variable frequency air compressors, and the requirement of variable frequency air compressors for oil is much higher than that of power frequency air compressors. Therefore, the frequency conversion air compressor must choose high-quality oil that meets the requirements of the frequency conversion air compressor.
● High quality air filter shall be selected
what is quality air filtration?
A single pursuit of high filtration precision, or a single pursuit of air filtration that is not easy to block, are not high-quality air filtration. Only air filter with high filtration precision and small suction resistance can be regarded as high-quality air filter.
Why should variable frequency air compressor use high quality air filter?
Because whether it is an air compressor manufacturer, an air compressor agent, or an air compressor user, everyone's original intention is to hope that the variable frequency air compressor is stable and energy-saving. The low suction resistance of the high-quality air filter can expand the operating energy efficiency, the high-quality air filter has high filtering precision, better protection for lubricating oil, better protection for the pressure difference between the middle and late oil fractions, and can better expand the operating energy efficiency of the air compressor.
When the frequency conversion air compressor is running at full speed, the displacement will be much larger. The high-quality air filter has high filtering accuracy and excellent dust interception effect, which greatly protects the effective filtering area of the oil and plays a very important role in the stability of the oil. Auxiliary effect.
Therefore, the frequency conversion air compressor must choose high-quality air filter. If you blindly cater to users at low prices and use air filter according to the standard of power frequency air compressor, it is not only irresponsible to yourself, but also irresponsible to users.
Shanghai granklin group specializes in the research and development, production and sales of "oil-free air compressors". it needs to purchase water-lubricated oil-free air compressors. you can contact us at any time. contact person: Mr. Hu, tel: 13918023456
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