Answer: In order to minimize the pressure loss of gas flowing through the oil fine separator and improve the separation effect, the gas flow rate in the oil fine separator cannot be too high. However, the lower the flow rate, the more filter material is required and the higher the cost of the oil fine separator. Therefore, it is very important to choose a suitable oil fine separator and a suitable oil-gas separator volume.
The reasonable pressure drop and flow rate values are related to factors such as the density of the compressed gas and the viscosity of the lubricating oil. Generally, the pressure drop through a clean oil fine separator is 0.025~0.03MPa; for oil-injected screw air compressors, the speed of gas flowing through the filter material should be around 0.1m/s, and the volume of the oil-gas separator is generally about 3 times the volume of the oil fine separator.
