How to solve the problem of oil in the exhaust gas of the air compressor?
Views : 1938
Author : Runningway
Update time : 2020-07-27 14:35:38
In some special production industries, there are relatively high requirements for the gas discharged from the screw air compressor, especially the textile enterprises and the food industry, basically require the compressed air to have a particularly low oil content, and basically achieve oil-free compression. air. So when the failure of oil-free screw air compressor exhaust with oil occurs, how can we solve this failure?
1. The oil and gas separation core is damaged
During the operation of the screw air compressor, if the oil separation core is damaged, such as breakage or perforation, it loses its function of oil and gas separation. That is to say, the exhaust pipe of the mixed gas and the compressor is directly connected, so a large amount of cooling oil is not separated, and it will be discharged out of the body along with the gas, causing an oil-carrying fault during the exhaust process.
2. The oil return line is malfunctioning
In the working process of the air compressor, the oil return pipeline shoulders important responsibilities. There will be a pressure difference between the oil separation core and the compressor inlet. Under the action of this pressure difference, the oil return pipeline is responsible for separating the oil core. The oil collected at the bottom of the sub is transported back to the compressor, where it will continue to be used during the next cycle. If the oil return path is blocked, broken, or installed incorrectly, the oil collected at the bottom of the oil separation core cannot be transported back to the compressor, resulting in too much oil at the bottom, which is not transported back to the compressor. As the gas is exhausted, oil will appear during the exhaust process.
3. System pressure control is too low
During the operation of the screw compressor, the system pressure control is too low, which will cause the centrifugal force in the separator to be less than the required centrifugal force of the work, then the role of the separator will not be fully reflected, which will cause the next stage of the separator The oil content of the gas in the core is too high and exceeds its separation range, which leads to incomplete separation of oil and gas, and oil-carrying faults occur during the compressor exhaust process.
4. The pressure valve fails
During the operation of the screw compressor, the function of the pressure valve is to ensure that the system pressure is controlled above the pressure during the operation. If the pressure valve fails, the pressure of the system cannot be guaranteed. Because the air consumption of the air transport equipment is very large, the system pressure will be too low and the oil return line cannot return oil. The oil accumulated at the bottom of the oil separator core will not be able to return to the compressor, and will be discharged from the compressor with the compressed gas, causing oil-carrying failure during the flat exhaust process.
5. Too much cooling oil added in the compressor
Before the operation of the screw compressor, too much cooling oil is added, which exceeds the scope of the compressor. During the operation of the compressor, due to the high oil level, although the separation system separates the oil and gas, it is The gas will also involve the cooling oil into the gas and discharge it, causing excessive oil content in the exhaust gas and causing oil-carrying faults.
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