How to increase the displacement of oil-free screw air compressor?

The air compressor displacement refers to the compressed air discharged by the air compressor per unit time converted into the air volume in the suction state. During the operation of the air compressor, there are some factors that will affect the air compressor and prevent it from reaching the specified exhaust volume. So how to reduce the influence of these factors? What about increasing exhaust volume?

1. Factors affecting air compressor exhaust volume
1. Leakage. There is no contact between the air compressor rotor and the rotor and between the rotor and the shell during operation. There will be a certain gap, so gas leakage will occur.

2. Speed. The exhaust volume of the air compressor is directly proportional to the rotation speed. The speed often changes with the voltage and frequency of the power grid.

3. Inhalation state. For a general positive displacement air compressor, the suction volume remains unchanged. When the suction temperature increases, or the suction line resistance is too large and the suction pressure decreases, the density of the gas decreases, which will correspondingly reduce the mass exhaust volume of the gas.

4. Cooling effect. The temperature of the gas will increase during the compression process, and the temperature of the air compressor rotor and casing will also increase accordingly. Therefore, during the suction process, the gas will be heated and expanded by the rotor and casing, so the suction will be reduced accordingly. quantity.

2. Methods to increase exhaust volume
1. If necessary, clean the cylinder and other parts.
2. Correctly select the size of the clearance volume;
3. Adopt advanced cooling system;
4. Maintain the tightness of piston rings;

5. Reduce the resistance when gas is inhaled;
6. Keep the air valve and stuffing box tight;
7. Maintain the sensitivity of the suction valve and exhaust valve;
8. Drier and colder gases should be inhaled;

9. Increase the compressor speed appropriately;
10. Keep the output pipeline, gas valve, gas tank and cooler tight.

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