Boiler & Combustion Air Fans
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Boiler & Combustion Air Fans
Reliable centrifugal fan solutions for forced draft, induced draft, primary air, secondary air and flue gas handling systems in industrial boilers and thermal processes.
Reliable Airflow for Stable Combustion
Industrial boiler systems require stable and accurately controlled air supply to ensure efficient combustion, lower energy consumption, safe operation and reduced emissions.
Zhicheng centrifugal fans are designed for demanding boiler and combustion air applications. Our fans can be customized according to airflow, pressure, temperature, fuel type, installation space and system resistance.
Whether the project requires clean combustion air, high-temperature flue gas extraction, dust-laden gas handling or variable-load operation, we provide engineered fan solutions for reliable long-term performance.
Typical Boiler Fan Applications
Our boiler fan solutions cover the main airflow requirements in industrial combustion systems.
Forced Draft Fan
Supplies fresh combustion air into the boiler furnace to support stable and efficient burning.
Induced Draft Fan
Extracts flue gas from the boiler system and maintains furnace draft and negative pressure.
Primary Air Fan
Provides air for fuel drying, conveying or primary combustion in coal, biomass and solid fuel systems.
Secondary Air Fan
Supports complete combustion, improves flame stability and helps optimize boiler efficiency.
Flue Gas Fan
Handles high-temperature or dust-containing gas after combustion, depending on system design.
Combustion System Upgrade
Suitable for boiler retrofit projects requiring higher efficiency, lower vibration and better control.
Recommended Fan Types
Different boiler systems require different fan structures. Zhicheng can recommend the suitable fan type based on actual working conditions, including airflow, pressure, temperature and system requirements, ensuring optimal performance and long-term reliability.
Technical Capabilities
The following data is for general reference. Final fan selection shall be based on actual working conditions, including airflow, pressure, temperature, gas composition, system resistance, installation layout and operation mode.
| Item | Available Range / Options |
|---|---|
| Airflow | 1,000 – 500,000 m³/h or customized according to boiler capacity and system demand |
| Pressure | Up to 15,000 Pa or customized for high-resistance duct systems |
| Temperature | Normal temperature, medium temperature and high-temperature design available |
| Fan Type | Forced draft fan, induced draft fan, primary air fan, secondary air fan and flue gas fan |
| Drive Type | Direct drive, belt drive and coupling drive available according to fan size and working condition |
| Impeller Type | Backward curved, radial blade or customized impeller design for efficiency, pressure and dust resistance |
| Material | Carbon steel, stainless steel 304, stainless steel 310S, wear-resistant steel or anti-corrosion design |
| Motor Options | Standard motor, high-efficiency motor, explosion-proof motor, variable-frequency motor and international brand motor |
| Control Method | VFD control, damper control, manual control, PLC system support and remote control interface |
| Customization | Rotation direction, outlet angle, base frame, inlet box, silencer, flexible connector, damper and special coating |
| Testing & Documentation | Performance curve, general arrangement drawing, dynamic balancing report, vibration test and inspection records available upon request |
Engineered for Heavy-Duty Boiler Operation
- Optimized impeller design for high efficiency and stable airflow
- Heavy-duty casing structure for continuous industrial operation
- Dynamic balancing for reduced vibration and longer service life
- Optional VFD control for variable boiler load operation
- Customized material selection for high temperature or corrosive conditions
- Direct drive, belt drive or coupling drive available
- Designed according to project airflow, pressure and temperature requirements
Our Engineering Process
From working condition analysis to final delivery, we provide practical technical support for boiler fan projects.
01. Requirement Analysis
Confirm airflow, pressure, temperature, fuel type and system resistance.
02. Fan Selection
Select suitable fan model, impeller type, motor power and drive method.
03. Technical Confirmation
Provide drawings, performance data, material options and control suggestions.
04. Manufacturing & Delivery
Produce, inspect, balance and deliver according to project requirements.
Quality & Testing
Each fan can be inspected according to project requirements before delivery. Available inspection items include dimensional inspection, impeller dynamic balancing, vibration measurement, running test and appearance inspection.
- Impeller dynamic balancing
- Vibration inspection
- Bearing temperature check
- Motor and rotation direction confirmation
- Painting and packing inspection
- Performance curve support available upon request
