Small Screw Compressor

1.Dual variable frequency inverter.

2.Dual variable frequency system: permanent magnet motor variable frequency + cooling fan motor variable frequency , one-piece integrated structure, extreme energy saving.

3.Constant pressure air supply: the supply pressure is precisely controlled under 0.01 MPa.

3.Constant temperature air supply: constant temperature set at 85 oC, with the best lubrication

4.Eliminates empty load, reduces the empty load energy consumption by 45%.

5.Large Frequency range 30%~ 100%.

6.Vector air supply, accurate calculation, ensure that the air flow of Compressor is consistent with the demand of the user system.

Why does the small screw compressor consume so much energy?

Generally speaking, the cost of purchasing an air compressor and putting it into use includes two parts. One part is the purchase cost and maintenance cost, which account for 20% of the total cost; the other part is the energy consumption during the operation of the air compressor. This accounts for 80% of the cost of using the air compressor, which shows that the energy consumption of the air compressor is very serious. But why does the air compressor consume so much energy?

1. When the air compressor is running, use the most suitable voltage to work. Asymmetrical power supply voltage or excessively high or low voltage will cause a large amount of waste of air compressor energy. Due to the unbalance of the single-phase load of the three-phase four-wire low-voltage power supply system, the three-phase voltage of the motor is asymmetry, and the motor produces negative sequence torque, which increases the asymmetry of the three-phase voltage of the motor. Losses in the operation of large motors. In addition, the long-term low voltage of the power grid makes the current of the normal working motor larger and the loss increases. The greater the asymmetry of the three-phase voltage and the lower the voltage, the greater the loss.

2. The small screw compressor is poorly maintained and managed. After a certain period of operation, the air compressor needs to be maintained regularly. If there is a deviation in the parts, it needs to be repaired or replaced in time. If the motor and equipment are not repaired and maintained in accordance with the requirements, and left to run for a long time, not only will the efficiency be low, but also the loss will continue to increase.

3. The motor load rate of the small screw compressor is low. It may be due to improper selection of the motor, excessive surplus or changes in the production process, so that the actual working load of the motor is much less than the rated load, which accounts for about 30% to 40% of the installed capacity. Running under 30%~50% of the rated load, the operating efficiency is too low, but the energy consumption has not been reduced, resulting in a lot of energy waste.

4. The outdated and old motors are still in use. The manufacturing process of these motors is relatively rough, but the technology is not as good as the current ones. The E-class insulation is used, resulting in larger volume, poor starting performance, low efficiency, and good energy consumption. Work efficiency It is not proportional, which is also one of the reasons for the serious energy consumption of air compressors.

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