Causes and solutions of carbon deposits during the use of air compressors
If the air compressor has been used for a long time, it is inevitable that there will be carbon deposits on the air end and oil path. How is the carbon deposit formed? How to clean it? There are four main factors that affect the formation of carbon deposits:
The micro-oil/oil lubricated screw air compressor may produce carbon deposits during the use process, which will affect the use efficiency of the air compressor.
1. Filtration system
It is what we often call "three filters", whether there are too many particles in the filter system of the air compressor entering the machine head. If the particulate matter inhaled with the air thickens the oil, the oxidation reaction of the oil is accelerated, thereby accelerating the rate of carbon deposition. Therefore, it is necessary to pay attention to the correct installation and use of the air filter, oil filter and oil separator. If it is found to be damaged during cleaning, it must be replaced in time.
2. High temperature
Different grades and types of lubricating oils have different starting temperatures for the oxidation reaction. The long-term operation of the air compressor in the high temperature range will accelerate the oxidation and deterioration of the lubricating oil. High temperature is the main factor that causes the oxidative deterioration of lubricating oil. The higher the temperature, the faster the oxidation speed and the greater the possibility of forming carbon deposits.
3. Pressure
After the air is compressed by the air compressor, the pressure increases and the oxygen concentration increases, which increases the oxidation rate of the oil and the possibility of carbon deposition.
4.metal catalysis:
The metal oxidation reaction plays a positive catalytic role, which will speed up the reaction.
5.the quality of lubricating oil
The quality and amount of air compressor oil will have varying degrees of influence on the appearance of carbon deposits. Using mineral air compressor oil, the unsaturated components in the base oil are more likely to cause carbon deposition. During the period of use, users are constantly changing different brands of lubricating oil, and their quality will inevitably be different. The phenomenon of carbon deposition in these cases is not uncommon.
6.lubricating oil overdue use
The lubricating oil has exceeded the specified service time. According to the appearance of the lubricating oil, the use time can be adjusted appropriately. Sometimes even if the use time is not overtime, the oil use period should be shortened correspondingly with the increase of temperature. In this case, the air compressor will not be able to operate due to carbon deposition.
The air compressor produces carbon deposits, what should we do?
The method of maintenance and cleaning of carbon deposits in oil circuit and machine head. If the carbon deposition in the oil circuit and the main engine is not too serious, you can use an online cleaning agent (compressor online carbon deposition cleaning agent or cleaning oil). The large main engine can close the outlet pipeline and oil pipeline and then pour the cleaning agent to soak it. The soaking time is subject to the instructions of the cleaning agent, generally 8-12 hours, some cleaning agents are more corrosive, and the soaking time required by them should be strictly observed.
Most air compressor explosion accidents are caused by the accumulation of carbon deposits. Carbon deposits are high temperature products, but they can also spontaneously ignite at high temperatures. Usually, the self-ignition temperature of carbon deposits is around 180°C, and the outlet temperature of the air compressor is generally not higher than 160°C, so under normal operation, the carbon deposits will not be ignited. However, when the air compressor has an instantaneous high temperature or high pressure due to some faults, the temperature in the air compressor rises sharply, causing the carbon deposit to spontaneously ignite, causing the oil in the carbon deposit to vaporize rapidly. When the vaporized oil and gas coexist with high concentration of oxygen and high temperature in the compressed air, it will cause the compressor to explode and cause an accident. When using the air compressor, the above situations should be avoided, and the air compressor should be maintained and maintained in time.
The above are the reasons and solutions for carbon deposition during the use of air compressors. I hope they can help you understand and help you.
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