Alpha imported single-stage centrifugal blowers
Single-Stage Centrifugal
Specially designed for large flow and heavy duty working condition. Adopting integral speed increasing gearbox structure, with semi-open three-way flow impeller and adjustable guide vane (IGV) technology. The adiabatic efficiency is as high as 84%, widely used in power desulfurization, smelting blast furnace and chemical process.
Interactive demonstration of the principle of centrifugal acceleration
Drag the slider below to observe the variation of impeller speed in relation to airflow velocity.
The gas is sucked in axially, thrown out and accelerated by the high-speed rotating impeller, and finally decelerated and pressurized in the worm shell.
1. Axial air intake (Intake)
The gas is drawn in axially from the center of the impeller (impeller eye) and the flow is regulated by the inlet guide vane (IGV).
2. Centrifugal acceleration
The high-speed rotating impeller throws the gas out in the radial direction, and the gas obtains extremely high kinetic energy and centrifugal force.
3. Discharge
In the worm-gear diffuser, the gas flow rate is reduced and the kinetic energy is efficiently converted into pressure energy, which is ultimately discharged at high pressure.
Alpha Centrifugal Fans Technical Advantages
high efficiency and energy saving
Adiabatic efficiency up to 84%, compared with Roots fan, lower energy consumption under the same working conditions. Ternary flow impeller design, excellent aerodynamic performance.
Width adjustment
With the dual adjustment of inlet guide vane (IGV) and outlet guide vane (DGV), the flow rate can be adjusted in the range of 45%~100%, which is still efficient under partial load.
sturdy and durable
Cast iron worm shell, semi-open type high strength aluminum alloy/stainless steel impeller. Integral gearbox design, compact structure, extremely smooth operation.
Mainframe Structure Details
Ternary flow impeller
Semi-open backward curved blades, high-strength forged aluminum/stainless steel milling, high dynamic balance accuracy.
Integral Gearbox
Single-stage speed increase, horizontal profiling. Herringbone gear transmission, strong load bearing capacity, low noise.
Maze Seal
Non-contact seal ensures oil-free air. Optional carbon ring seal available.
IGV guide vane
Inlet adjustable guide vanes for precise pre-rotation of airflow and improved part-load efficiency.
Key application areas
The preferred solution for high-flow, high-reliability conditions
Power desulphurization (FGD)
Provides oxidized air to the desulfurization towers of coal-fired power plants for 24-hour continuous operation.
Smelting Blast Furnaces
Provide combustion air for blast furnace smelting with stable pressure and resistance to harsh environments.
Sulfur Recovery
Used for air supply to the reactor of chemical sulfur recovery unit, explosion-proof and safe.
sewage treatment
Large municipal water plant aeration, large flow rate of a single machine, wide range of adjustment.
Carbon black production
Process gas transportation, high temperature resistant design is optional.
Fermentation process
Oxygen supply for biopharmaceutical fermentation, oil-free air for strain safety.
Selection parameter range
Need a customized selection plan?
Our engineers are always ready to provide you with working condition analysis and technical support.
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