Multi-stage centrifugal blower
1. The fan's inlet and exhaust casing, as well as the return flow device, are fully matched with the impeller through parameter optimization, and the streamlined design results in lower flow losses.
2. A ternary meridian surface, combined impeller, and composite line technology are used, resulting in high aerodynamic efficiency of the impeller.
3. There is no guide ring at the impeller inlet, effectively improving the flow characteristics at the impeller inlet.
The multi-stage centrifugal blower is a type of blower equipment that uses a series-connected multi-stage impeller structure. Adjacent impellers are connected by guide vanes, with a pressure range of 15 kPa to 0.2 MPa and a compression ratio of 1.15-3. It is widely used in fields such as wastewater treatment, blast furnaces for metallurgy, mining flotation, and chemical gas production. It can transport air and special gases and features oil-free operation, low pulsation, and clean, dry gas output.
The equipment consists of the main unit (including the blower, motor, and combined base) and supporting accessories, using either direct coupling or belt drive. Impellers are made of aluminum alloy or high-strength alloy steel, with the main shaft made of carbon steel or alloy steel. Sealing uses a labyrinth structure to prevent leakage. Performance covers a flow range of 15-500 m³/min, continuous operation for over 1 year, and operational noise below 85 dB(A). Some models adopt a triplane impeller combined with wing-type return vanes, achieving aerodynamic efficiency of over 78%, and support variable frequency speed regulation and intelligent monitoring. The bearing system is configured as either rolling or sliding type, with lubrication methods including lithium-based grease lubrication and pressure oil supply lubrication.
Multi-stage centrifugal blower Product Overview
1. The fan's intake and exhaust casing and the return air guide are fully matched with the impeller through parameter optimization, and the streamlined design results in lower flow losses.
2. It uses a mixed-flow meridian surface, a combined impeller, and composite blade technology, achieving high aerodynamic efficiency.
3. The impeller inlet has no guide ring, effectively improving impeller inlet flow.
4. Wing-type return air blade design reduces losses and converts more static pressure energy.
5. Flow analysis technology is applied to optimize blower performance, with blower variable efficiency over 78%.
6. The same blower meets both 50Hz and 60Hz speeds, with a wide adjustment range and better performance.
7. After strict dynamic balancing of the rotor, the blower has low vibration, high reliability, and overall low noise.
8. The common base can be installed with vibration dampers without anchor bolts, saving time and effort and reducing foundation costs.
9. The fan structure is advanced and reasonable, with few vulnerable parts, making installation, operation, and maintenance convenient.
Main Applications
- Water treatment, wastewater treatment, biogas recovery, vacuum dust removal, air knife drying, flotation and mineral processing, galvanizing and electroplating processes, oxygenation of liquids and baths, process gas transportation, paper and printing industries, air combustion (desulfurization, carbon black, blast furnace smelting, etc.).
