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Anti-corrosion axial flow fans

XQ-type inclined chute high-pressure centrifugal fan

Wear-resistant centrifugal fans

High-pressure centrifugal blowers

Anti-corrosion centrifugal fans

SDF tunnel construction axial flow fan

Multi-stage centrifugal blower

The working principle of multi-stage centrifugal blower: The multi-stage centrifugal blower operates based on the principle of converting kinetic energy into potential energy.

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Product Description

The working principle of multi-stage centrifugal blower: The multi-stage centrifugal blower operates based on the principle of converting kinetic energy into potential energy. It uses a high-speed rotating impeller to accelerate the gas, then decelerate and change its direction, thereby converting kinetic energy into pressure energy. The gas enters the impeller axially, changes direction to radial flow as it passes through the impeller, and then enters the diffuser. In the diffuser, the gas changes its flow direction and the cross-sectional area of the pipe increases, causing the airflow to decelerate and convert kinetic energy into pressure energy. A return channel is used to direct the airflow into the next impeller stage, generating higher pressure.

Structure of multi-stage centrifugal blower

Rotor: Composed of multiple impellers, main shaft, spacer sleeves, and balance disc. The impeller outlet is backward curved, with reasonable blade installation angles, long flow paths, and relatively longer stable flow zones; the front disk of the impeller is conical arc-shaped to reduce intake vortices and resistance; each impeller has equal outer diameters, facilitating series production and selection; the balance disc structure on the high-pressure end rotor improves bearing operating conditions and extends bearing life.

Casing: Made from segmented riveted components, stacked together to ensure strength and rigidity, designed for horizontal splitting to facilitate bearing replacement; the multi-stage return channels and multi-stage diffusers inside the casing also adopt the same stacking method; for anti-corrosion requirements, epoxy resin can be applied to the inner walls of the casing to enhance corrosion resistance.

Inlet and outlet: Manufactured according to national standard duct flanges, using riveted structures suitable for retrofitting existing blowers.

Sealing assembly: Multiple sets of multi-stage cast labyrinth seals are used at the shaft ends and before and after each impeller; axial labyrinth seals and carbon ring seals are combined at the inlet box and tail end of the casing, providing excellent sealing performance, compact structure, ease of use, and quick replacement.

Muffler: When noise reduction is required, mufflers are installed at the inlet and outlet exhaust devices to effectively reduce noise transmitted through the inlet and outlet ducts.

Performance characteristics of multi-stage centrifugal blower

High pressure head: By connecting multiple impellers in series, the gas is compressed and pressurized in each impeller stage, capable of producing high pressure to meet various process requirements for high-pressure gases.

High efficiency: Utilizing tri-dimensional flow meridional surfaces, composite impellers, and compound profile technologies, the impeller has high aerodynamic efficiency. Additionally, optimized parameters of the inlet and outlet casing and return channels match the impeller, resulting in lower flow losses and higher overall efficiency of the fan.

Smooth operation: The rotor undergoes strict static and dynamic balancing tests, minimizing vibration and ensuring high reliability. With reasonable blade profiles, there is no mechanical friction during operation, resulting in low overall noise and long-term stable operation.
Compact structure: The overall design is compact, occupying less space, easy to install and arrange, and the casing's horizontal split design reduces wear parts, making installation, operation, and maintenance convenient.

Good adjustability: Flow can be adjusted by an inlet butterfly valve, and pressure can be regulated by an outlet butterfly valve. Variable frequency motors can also be used for speed control, allowing flexible adjustment of air volume and pressure according to different operating conditions.

Application fields

Wastewater treatment: used in the aeration stage of wastewater treatment processes to provide sufficient oxygen for microorganisms, promoting the decomposition and purification of organic matter in the wastewater. Iron and steel metallurgy: such as blast furnace blowing and sintering in vertical furnaces, providing large amounts of air for the smelting process to ensure complete combustion of fuel, improving production efficiency and product quality. Chemical industry: used in chemical gas production, gas transportation, desulfurization blower processes, such as compressing air or other gases and delivering them to chemical reactors to meet process requirements. Mining industry: in mining flotation, coal washing plants, etc., used for transporting air or other gases to achieve mineral flotation separation and coal washing processes. Power industry: multi-stage centrifugal fans are needed in power plant desulfurization blowers, delivering air to desulfurization equipment to achieve flue gas desulfurization, reducing sulfur dioxide emissions. Zibo Hongcheng Fan Co., Ltd. specializes in producing over 50 series and more than 600 specifications and models of fans, which are widely used in mining, coal mines, oil fields, chemical plants, kilns, metallurgy, boilers, textiles, and building materials industries. Custom production and processing according to provided drawings are available. Welcome to contact us for cooperation.

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Products

Products

Which wind turbine manufacturer leads in innovation?

How are Chinese wind turbine manufacturers innovating?

How does a titanium fan benefit sustainability?

How do power plant fans drive sustainability?

How do centrifugal steel mill fans boost efficiency?

How is a fan drive shaft crucial for sustainability?

Multi-stage centrifugal blower

Description

marker

Product Description

Structure of multi-stage centrifugal blower

Performance characteristics of multi-stage centrifugal blower

Application fields

contact us

Related popular products

High-pressure centrifugal blowers

FBCDZ coal mine main ventilator

SDF tunnel construction axial flow fan

Wear-resistant centrifugal fans

Coal gas booster fan

Mixed-flow fans

Impeller of a centrifugal fan

Axial flow fans

XQ-type inclined chute high-pressure centrifugal fan

Anti-corrosion axial flow fans

Dust removal centrifugal fans

Stainless steel centrifugal fan

Boiler centrifugal blowers

FBD series (dⅠ) explosion-proof pressure-injection counter-rotating axial flow local ventilation fan

Fan motor

High-temperature draft fans

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