Welding structure multi-stage centrifugal fan is a widely used high-pressure blower equipment in the industrial field.The core adopts steel plate welding technology to create the casing,and achieves high pressure by compressing gas step by step through multi-stage impellers.Compared with traditional cast iron models,it has higher strength and stronger customization flexibility.
Core structural characteristics
Welded casing:using steel plate integral welding or graded riveting welding process,mostly designed as a horizontal sectional structure,with high overall stiffness and low deformation.Carbon steel,stainless steel or fiberglass materials can be selected according to needs,and the inner wall can be coated with epoxy resin to enhance anti-corrosion performance.
Efficient rotor system:The rotor is composed of multiple sets of backward impellers,main shafts,spacers,and balance disks.The impellers are dynamically balanced and calibrated to significantly reduce axial thrust.The bearing life can exceed 2 years,and the operating vibration value is far below industry standards.
Improve sealing configuration:The shaft end and stage are integrated with labyrinth and carbon ring combination seals,which have reliable sealing performance and can effectively prevent gas leakage,and are suitable for oil-free lubrication conditions.
Low noise and stable design:Equipped with inlet and outlet mufflers as standard,the operating noise is significantly lower than that of Roots blowers.Some models are equipped with air-cooled/water-cooled systems,supporting long-term continuous operation.
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Typical performance parameters
The import flow rate of conventional models covers 15-220m³/min,and the outlet pressure can reach 19.6-98kPa.Some high-speed models can reach a speed of 4000r/min.The anti surge control system can be used to avoid gas backflow at the maximum flow rate.
Mainstream application scenarios
Widely adaptable to various industrial high-pressure air supply needs:
Blast aeration and integrated sewage treatment equipment supporting the sewage treatment industry
Chemical gas production,process gas pressurized transportation,and corrosive gas transportation scenarios
Metallurgical smelting blast furnace blower,mining flotation,coal washing jig matching
Stable high-pressure gas sources are required for working conditions such as pneumatic conveying,vacuum drying,and power plant desulfurization
Market reference price
The price range of different configuration models varies greatly:
Small basic model:about 800-1500 yuan/unit,suitable for conventional ventilation scenarios
Industrial standard model:about 8000 yuan/unit,with thickened blades and patented structure,suitable for most industrial working conditions
High flow/special anti-corrosion customized models:ranging from 6000-16000 yuan/unit,the specific price is negotiable depending on the material and parameter customization situation
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