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Dual Inlet Centrifugal Fan

HVAC Systems: Used for ventilation and air exchange in large buildings, supply and return air in HVAC systems, providing fresh air indoors, and maintaining a comfortable indoor environment.

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Dual Inlet Centrifugal Fan Applications

HVAC Systems: Used for ventilation and air exchange in large buildings, supply and return air in HVAC systems, providing fresh air indoors, and maintaining a comfortable indoor environment.

Industrial Ventilation: In factory workshops, warehouses, etc., used to expel harmful gases, dust, hot air, etc., improving working conditions, ensuring workers' health and safety, and can also be used for gas transportation and process ventilation in industrial production processes.

Power Industry: In power plants, used as forced draft fans and induced draft fans for boilers, providing sufficient air for boiler combustion, and discharging flue gas after combustion, also used for cooling tower ventilation, etc.

Mining Industry: Used in mine ventilation systems, providing fresh air underground, expelling harmful gases such as methane, ensuring safe production in mines.

Chemical Industry: Used for gas transportation in chemical production, ventilation and air exchange in process operations, such as transporting various chemical raw material gases, ventilation of reactors, etc.

Structure of Dual Inlet Centrifugal Fan

Impeller: Uses a dual impeller structure, consisting of two front discs and one middle disc, with impeller blades welded between the front disc and the middle disc, allowing gas to enter from both sides of the impeller, achieving a larger airflow.

Casing: Generally adopts a volute structure, used to collect gas discharged from the impeller and convert part of the kinetic energy of the gas into pressure energy, the casing is usually made of steel plate welding, with good strength and sealing properties.

Inlet and Outlet: There are two inlets and one outlet. The inlet is typically designed with an intake box to guide the gas evenly into the impeller, while the outlet can be manufactured in different directions according to actual needs, such as 0°, 90°, 180°, etc.

Shaft and Bearings: Uses a double support structure, with the shaft ends installed on two bearings respectively, this structure can withstand large radial and axial forces, ensuring high operational reliability, and due to the balanced load on both sides of the impeller bearings, it basically eliminates the axial force on the impeller, reducing bearing wear.

The working principle of a double suction centrifugal ventilator

The electric motor transmits power to the fan impeller through the shaft. As the impeller rotates, the gas between the blades is subjected to centrifugal force and gains kinetic energy, which is then discharged from the periphery of the impeller. After being guided by the snail -shaped casing, the gas flows towards the outlet of the ventilator, thereby creating negative pressure at the center of the impeller. Due to the double suction design, external air continuously flows into the impeller from both sides, allowing the ventilator to discharge large volumes of gas.

Performance characteristics of double suction centrifugal ventilators

1. High flow rate: The double suction structure enables the ventilator to intake and exhaust more gas under the same impeller diameter and rotational speed, meeting high airflow requirements for large venues such as shopping malls, theaters, and factory workshops.

2. Higher pressure: Through proper design of the impeller and casing, double suction centrifugal ventilators can generate higher pressure, capable of overcoming resistance in long ducts or complex systems. They are suitable for applications requiring gas delivery to higher elevations or longer distances, such as flue gas desulfurization systems in power plants and ventilation systems in mines.

3. Smooth operation: The impeller undergoes strict static and dynamic balance adjustments and uses a dual-bearing structure, effectively reducing vibration and noise, ensuring smoother and more reliable operation, extending the life of the ventilator, and lowering maintenance costs.

4. High efficiency: With a well-designed impeller and airflow path, double suction centrifugal ventilators experience minimal energy loss during operation, resulting in higher efficiency, saving energy, and reducing operating costs.

5. Good adjustability: The airflow and pressure of the ventilator can be flexibly adjusted by varying the motor speed, inlet guide vanes, or outlet valves to meet different operational needs.

Zibo Hongcheng Fan Co., Ltd. specializes in producing over 50 series and more than 600 specifications and models of fans, widely used in industries such as mining, coal mines, oil fields, chemical plants, kilns, metallurgy, boilers, textiles, and building materials. Custom production and processing according to provided drawings are available. Contact us for cooperation opportunities.

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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?

Dual Inlet Centrifugal Fan

Description

marker

Dual Inlet Centrifugal Fan Applications

Structure of Dual Inlet Centrifugal Fan

The working principle of a double suction centrifugal ventilator

Performance characteristics of double suction centrifugal ventilators

contact us

Related popular products

Titanium fans

Boiler centrifugal blowers

Anti-corrosion axial flow fans

Roots blower

HTF type fire smoke exhaust axial fan

Impeller of a centrifugal fan

SDF tunnel construction axial flow fan

Kiln exhaust fan

Stainless steel centrifugal fan

Anti-corrosion centrifugal fans

Multi-stage centrifugal blower

Boiler centrifugal induced draft fans

Dust removal centrifugal fans

JK series of mine local exhaust fans

Roof axial fans

Axial flow fans

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