Introduction to Industrial Boiler Centrifugal Fan

An industrial boiler centrifugal fan is a specially designed unit capable of withstanding high temperatures and handling smoke and dust in boiler and furnace systems.

4. Gas-Fired Boiler & Oil-Fired Boiler: Use gas or oil as the fuel source to generate energy, resulting in lower pollution levels.

• Hot Water Boiler: Designed to produce hot water, suitable for heating applications and supplying hot water for industrial use.

• Drying Furnace: Equipment used to remove moisture from materials.

For each type of boiler, there are corresponding centrifugal fans designed to match the boiler’s capacity, ensuring optimal performance and efficiency.

Classification of Some Boiler Fan Types

In a complete standard boiler system, the following types of fans are commonly used:

• Induced Draft Fan (ID): Exhausts flue gases from the boiler.

• Forced Draft Fan (FD): Supplies fresh air to the boiler for combustion.

• Secondary Air Fan: Provides additional air to improve combustion efficiency.

• Fuel Recirculation Fan: Recirculates unburned fuel for improved efficiency.

• Fuel Blower: Delivers fuel into the combustion chamber.

Should You Choose a Centrifugal Fan or an Axial Fan?

Using a centrifugal fan instead of an axial fan in a boiler system offers many benefits in terms of efficiency, flexibility, and reliability. Here are some key reasons:

• High Pressure and Large Airflow
• Energy Efficiency

Centrifugal fans often have higher energy efficiency than axial fans. Their design optimizes airflow movement and minimizes energy consumption during operation, helping to reduce electricity-related costs.

• Flexibility in Airflow Adjustment
• Low Noise

In summary, using a centrifugal fan instead of an axial fan in a boiler system offers many advantages in efficiency, energy savings, and reliability—especially in applications requiring high pressure and large airflow.

Boiler Fan Specifications

To make fan selection easier, we have designed boiler fans with capacities ranging from 1 ton to 40 tons. For example, the specifications for an induced draft centrifugal fan used for a 20-ton boiler are as follows:

Centrifugal Induced Draft Fan for 20T Boiler:

• Airflow: 56,000 – 68,000 m³/h

• Static Pressure: 2,500 – 3,000 Pa

• Design Temperature: 150°C

• Blade Type: Straight blades or backward-curved blades

• Impeller Diameter: 1,100 mm

• Drive Type: In-line indirect drive or belt-driven indirect drive

Note: The above specifications are for reference only and may not be suitable for all types of boilers with the same 20 T/h capacity. Therefore, all specifications will be designed according to your specific requirements. To download the catalogue, please click the link below to get the full PDF file of the centrifugal fan.

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