With the advancement of China's industrialization process, the industrial industry is vigorously carrying out energy conservation and consumption reduction, industrial upgrading and integration and reorganization, and industrial infrastructure equipment needs to be updated in large quantities. As an important supporting equipment for industry, centrifugal fans will be more used in electric power, cement, petrochemical, coal, mining and environmental protection and other fields. Under the new economic development situation, the centrifugal fan industry will continue to maintain rapid growth in the future. It is estimated that by 2022, the market size of the centrifugal fan industry will reach 96 billion yuan.