According to national statistical data, air compressors, as a widely used traditional Chinese medicine machinery in various industries such as mining, metallurgy, electricity, textiles, petrochemicals, papermaking, plastics, tobacco, etc., consume about 9% of the country's total electricity and 15% of industrial electricity. Calculated based on the total electricity generation of 5350 billion kilowatt hours in 2013, the annual electricity consumption of air compressors is about 481.5 billion kilowatt hours, making them an important energy consuming equipment in industrial machinery.

Working principle of air compressor: After the motor of the air compressor is started, the intake valve of its cylinder opens and begins to compress air. When the air pressure P of the cylinder and the connected air storage tank reaches the set value P1, the intake valve and exhaust valve close, and the motor is in an unloaded state; As the gas consumption in the production process increases, the air pressure inside the air compressor cylinder gradually decreases. When it reaches the set value P2, the inlet and outlet valves of the air compressor open, and the motor switches to the loading state. In this way, the air compressor motor is constantly running alternately in the "unloading" and "loading" states. When the motor is in the unloading state, the air compressor motor is completely useless and the electrical energy is completely wasted.

Tianli Electric conducts quantitative analysis on the energy consumption characteristics of enterprise air compressors, and adopts national level 1 energy-saving air compressors and intelligent dynamic optimization control technology to carry out energy-saving transformation and comprehensive energy efficiency management of enterprise air compressors based on the industry characteristics and industrial and mining requirements of customers. It has successively provided energy-saving services for mining, metallurgy, power, textile, petrochemical, papermaking, plastic, tobacco, cement, automobile manufacturing, and glass manufacturing enterprises, with a system comprehensive energy-saving rate of up to 20% -35%, which has been widely praised by users.