Recently, the business backbone from the technical, sales and procurement departments of Xi'an Ultrafiltration Company visited Shaanxi Blower Factory for study and exchange. Previously, the company mainly provided piston and screw type compressors as its main products. Although the company's cooperation with centrifugal machines has been increasing in recent years, it has relatively little knowledge and understanding of the working principle, structural form, application scenarios, characteristics and the rapidly developing large-scale steam-driven equipment.