Reasons for the increase in electricity consumption of air compressors

The reasons for the increase in electricity consumption of air compressors may be the following:

improper selection of air compressor: some enterprises may overemphasize the one-time investment, performance index and energy consumption index of air compressor equipment when purchasing air compressor, while ignoring the accurate evaluation of their own gas consumption characteristics, resulting in improper selection of equipment, such as excessive exhaust pressure and exhaust air volume, which is inconsistent with actual use. This will cause a large equipment margin and reduce the operating efficiency of the equipment, resulting in a waste of resources and an increase in power consumption.

When the air compressor equipment is running under load, it will produce a large surge current, which will not only pose a threat to the safe and stable operation of the power grid, but also cause energy waste.

Control mode problem: As the air compressor may run at full load for a long time, the motor capacity is usually determined according to the maximum demand during selection, which may lead to a large margin of the air compressor system. The traditional air compressor usually uses star-delta step-down start, but the current can still reach 2 to 3 times of the rated current when the power frequency starts. This impact will affect the stability of the power grid and increase energy consumption.

Gas leakage: only 10% of the electric energy consumed by the air compressor is converted into compressed air, and the remaining 90% is converted into heat energy, but this is often ignored. If there is a gas leak, the air compressor needs to consume more power to replenish the leaked gas, resulting in an increase in power consumption.

In order to reduce the power consumption of air compressors, some energy-saving measures can be taken, such as reasonable selection of air compressor models according to actual needs, regular inspection and maintenance of equipment to prevent gas leakage, and use of frequency converters to adjust the speed of the motor to adapt to different gas flow requirements. These measures can effectively improve the operating efficiency of the air compressor and reduce the power consumption.