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Stainless steel centrifugal fan

Stainless steel centrifugal fan is a ventilation equipment made of high-quality stainless steel material.

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Product Description

Stainless steel centrifugal fan is a ventilation equipment made of high-quality stainless steel material. The following details will introduce its working principle, structural composition, characteristics, and applications:

Working Principle

Gas Inlet: When the impeller starts rotating, the gas at the center of the impeller is thrown towards the outer edge of the impeller, causing the pressure at the center of the impeller to decrease and form a negative pressure area. External gas is then drawn into the center of the impeller under the effect of atmospheric pressure through the inlet port.

Gas Acceleration: The gas entering the impeller is accelerated along the curved surface of the blades due to the force exerted by the blades, and simultaneously, it is thrown towards the outer edge of the impeller under the effect of centrifugal force, increasing the kinetic energy of the gas.

Gas Discharge: The gas that has been accelerated and thrown towards the outer edge of the impeller enters the volute. Inside the volute, the gas gradually decelerates, converting its kinetic energy into pressure energy, which is then discharged from the outlet of the fan.

Structural Composition of Stainless Steel Centrifugal Fan

Impeller: As the core component of the fan, it is usually made of stainless steel welded together and undergoes precise dynamic balance correction for smooth operation with minimal vibration. After forming, the impeller needs to undergo static and dynamic balance correction and overspeed testing to ensure its stability and reliability during high-speed rotation.

Volute: Generally made of high-quality stainless steel plates welded into a volute shape, its function is to collect the gas thrown out by the impeller and convert the kinetic energy of the gas into pressure energy. Some volutes also have heat-resistant linings to enhance the fan's high-temperature resistance.

Motor: Provides power for the fan's operation, typically using motors with high protection levels and good insulation properties to adapt to different working environments. The motor is connected to the main shaft of the fan via couplings or pulleys, driving the impeller to rotate.

Drive Assembly: Composed of the main shaft, bearing housing, cooling device, etc. The main shaft is made of high-quality steel, precision-turned and tempered, providing high strength and wear resistance. The bearing housing supports the main shaft and ensures its rotational accuracy. Some fans are equipped with water-cooled bearing housings to reduce bearing temperature and extend bearing life.

Support Frame: Used to support the overall structure of the fan, ensuring its stability. For large fans, the support frame also has vibration-damping performance to minimize vibrations and noise generated during fan operation.

Inlet and Outlet Flanges: Standardized configuration for convenient connection with ducts, ensuring smooth gas flow.

Stainless steel centrifugal fan types

1. The fan is designed as a single suction type. Sizes range from No. 2.8 to 29.

2. Each type of fan can also be manufactured in either left rotation or right rotation versions. From the motor side view, if the impeller rotates clockwise, it is called a right-hand fan, denoted by 'right'; if counterclockwise, it is called a left-hand fan, denoted by 'left'.

3. The fan's discharge angle is indicated by the casing's discharge angle.

4. The fan drive methods include: A-type for direct coupling to the motor; B-type and C-type for belt drive; D-type for coupler drive.

Features of stainless steel fans

Strong corrosion resistance: Made from series such as 304/316 stainless steel, it has excellent corrosion resistance, suitable for harsh environments involving acids and alkalis, with high surface smoothness and low dust accumulation.

Reliable performance: The impeller undergoes precise dynamic balance correction, ensuring stable operation with minimal vibration; the volute is made using a one-piece stamping process, providing good sealing; the bearing housing is designed separately from the casing for easy maintenance.

High efficiency and energy saving: Advanced blade design and optimized aerodynamic structure ensure precise matching of airflow and pressure. Compared to traditional fans, it provides higher pressure and more stable airflow at the same energy consumption, effectively reducing energy usage.

Wide application range: Airflow ranges typically from 500 to 500,000 m³/h, with total pressure adjustable from 800 to 12,000 Pa. Operating temperature ranges from -40°C to +700°C, with special models reaching even higher temperatures. Protection levels generally meet or exceed IP54 standards.

Rich accessories: Full series impeller platforms and three-dimensional modular technology platforms support customization, allowing selection of water-cooled bearing boxes, vibration isolation bases, bearing and motor brands, inlet/outlet flexible connections, bellows, dampers, silencers, etc., based on customer needs.

Application fields

Industrial sector: Widely used in chemical, petrochemical, steel, machinery manufacturing industries for gas transportation, exhaust treatment, ventilation, etc., such as air supply in the steel industry and corrosive gas transportation in the chemical industry.

Construction sector: Provides ventilation, air exchange, and smoke exhaust services for large commercial buildings, office buildings, hospitals, underground garages, ensuring fresh and safe indoor air.

Environmental protection sector: Used in sewage treatment plants, waste disposal facilities, exhaust treatment projects, helping to handle and release various harmful gases, reducing environmental pollution.

Food and pharmaceutical sector: In food processing plants and pharmaceutical factories, used for air purification and ventilation, ensuring hygiene and safety of production environments, meeting relevant industry standards.

Other sectors: Also applicable in agricultural breeding, electronic industry dust removal, automotive industry spray booths exhaust, etc.

Zibo Hongcheng Fan Co., Ltd. specializes in producing over 50 series and more than 600 specifications of fans, widely used in mining, coal mines, oil fields, chemical plants, kilns, metallurgy, boilers, textiles, and building materials industries. Custom production and OEM services are available. Welcome to contact us for cooperation.

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Products

Products

How do fan shafts impact industrial efficiency?

How do blowers advance environmental protection?

How do high-temp gas fans improve industrial efficiency?

How are corrosive gas fans innovating sustainability?

What’s the role of induced draft fan furnaces?

What’s the role of induced draft fan furnaces?

Stainless steel centrifugal fan

Description

marker

Product Description

Working Principle

Structural Composition of Stainless Steel Centrifugal Fan

Stainless steel centrifugal fan types

Features of stainless steel fans

Application fields

contact us

Related popular products

Wear-resistant centrifugal fans

Axial flow fans

Mixed-flow fans

Roof axial fans

FBCDZ coal mine main ventilator

Dust removal centrifugal fans

JK series of mine local exhaust fans

Anti-corrosion centrifugal fans

SDF tunnel construction axial flow fan

Desulfurization fans

High-pressure centrifugal blowers

Boiler centrifugal blowers

Smoke exhaust fans

Coal gas booster fan

Dual Inlet Centrifugal Fan

Titanium fans

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