​Compared to Roots blowers, what advantages do corrosion-resistant centrifugal fans offer?

Corrosion-resistant centrifugal fans are a type of fan, typically categorized into single-stage and multi-stage variants. During operation, the impeller rotates at high speed, driving gas movement to convert mechanical energy into the gas's kinetic and pressure energy. Subsequently, diffusion converts most of the kinetic energy into pressure energy, thereby achieving higher pressure levels. Thus, corrosion-resistant centrifugal blowers achieve gas compression. Roots blowers are also widely used ventilation equipment. Compared to both, the former clearly offers higher operational efficiency and lower running costs. Therefore, when applied to medium-to-large wastewater treatment plants, their primary advantages include: 1. Single-stage corrosion-resistant centrifugal blowers operate at higher rotational speeds, maintaining substantial flow rates while saving floor space; 2. At full load, corrosion-resistant centrifugal fans demonstrate superior efficiency, with impeller efficiency reaching up to 82% when designed using three-dimensional flow theory; 3. During operation, personnel can adjust the flow range of corrosion-resistant centrifugal fans according to specific production conditions to accommodate variable flow rates in wastewater treatment; 4. Multi-stage corrosion-resistant centrifugal fans operate at lower speeds, ensuring stable and reliable performance with extended service life; 5. The use of corrosion-resistant centrifugal fan equipment is more advantageous with a fully air-cooled design, ensuring effective cooling; 6. During operation, corrosion-resistant centrifugal fan equipment is not only simple to operate but also easier to maintain and inspect. It does not require specially trained personnel to operate, reducing long-term costs. How to Select Centrifugal Fans for Different Applications? Those familiar with fans generally understand that when selecting centrifugal fan equipment, performance may vary depending on the specific operating environment. For instance, when selecting centrifugal fans for warehouses, key considerations during procurement include whether stored goods are flammable or explosive (e.g., paint storage). In such cases, explosion-proof centrifugal fans must be chosen. Naturally, operational noise levels must also be evaluated when selecting warehouse fans. Additionally, the required ventilation volume for warehouse airflow must be assessed to select appropriate fan equipment. Many users also seek solutions for kitchen exhaust requirements. For kitchens with indoor direct exhaust systems Additionally, simultaneously inspect the contact between the rotor, bracket, and thrust bearing. Generally, contact should be uniform with an angle around 60 degrees. Note that when checking thrust bearing contact, measure the total axial clearance of the thrust bearing using the shaft surface gauge of the centrifugal corrosion-resistant fan. After inspection and installation, verify the clearance between critical sealing components in the centrifugal corrosion-resistant fan. Typically, four sections are measured both horizontally and vertically. Horizontal gaps are typically measured with a straightedge, while vertical gaps require wire gauges. Before final installation, the centrifugal corrosion-resistant fan must undergo alignment. When aligning the unit, the upper stator and bearing housing cover must be installed first to prevent misalignment caused by the fan's self-weight.