Tubular Air Heater for Coal Fired Boiler Wholesale – High‑Efficiency Heat Transfer Solution
Our tubular air heater for coal fired boiler wholesale delivers reliable, high‑temperature air for pre‑heating combustion air, drying processes, and flue‑gas recirculation in large‑scale power generation and industrial plants. Engineered for rugged coal‑fired environments, the heater integrates seamlessly with existing boiler systems, providing consistent performance while reducing fuel consumption and emissions.
How It Works – Direct‑Contact Heat Transfer in a Robust Shell
The tubular design channels heated combustion gases through a series of high‑strength steel tubes surrounded by a secondary air stream. Heat is transferred conductively across the tube wall and convectively into the airflow, achieving rapid temperature rise with minimal pressure loss. The compact arrangement maximizes surface area while keeping the overall footprint small, facilitating retrofits in confined boiler rooms.
Competitive Advantages – What Sets Our Heater Apart
- Durable construction: Made from ASTM A335 P91 alloy, resistant to high‑temperature corrosion and cyclic thermal stress.
- Optimized flow dynamics: CFD‑validated tube layout ensures uniform air heating and low turbulence.
- Scalable capacity: Modules can be linked in series or parallel to meet 2 MW‑10 MW thermal demands.
- Easy maintenance: Removable tube bundles and hinged access doors reduce downtime.
- Wholesale pricing: Tiered discounts for bulk orders and long‑term supply contracts.
Typical Specifications (customizable per order)
| Parameter | Typical Range | Unit |
|---|---|---|
| Thermal Capacity | 2,000‑10,000 | kW |
| Maximum Air Inlet Temperature | 300‑500 | °C |
| Operating Pressure | 0.1‑1.2 | MPa |
| Tube Material | ASTM A335 P91 | — |
| Design Life | 30‑40 | years |
| Weight (per 1 MW unit) | 4,500‑5,200 | kg |
Application Scenarios – Where the Heater Adds Value
The heater is a proven fit for a range of coal‑fired installations:
- **Utility Power Plants** – Pre‑heat combustion air to improve furnace stability and reduce coal consumption.
- **Cement Kilns** – Supply high‑temperature drying air for raw material preparation.
- **Steel Melting Furnaces** – Provide supplemental heat for oxygen blast pre‑heating.
- **Industrial Drying Systems** – Accelerate moisture removal in bulk material handling.
FAQ – Purchasing & Technical Guidance
What is the minimum order quantity (MOQ) for wholesale purchases?
Our standard MOQ is three (3) complete heater units, which allows us to offer competitive bulk pricing while maintaining production efficiency.
Can the design be customized for specific boiler dimensions or performance targets?
Yes. We provide full OEM engineering support. Tube length, spacing, inlet/outlet connections, and control interfaces can be adjusted to match your plant’s layout and desired thermal output.
What is the typical lead time after order confirmation?
Lead times range from 15 to 45 days depending on order volume, customization depth, and current production schedule. Expedited options are available upon request.
Do you provide warranty and after‑sales support for wholesale buyers?
All units come with a 12‑month warranty covering material and workmanship. Our technical service team offers on‑site commissioning, training, and spare‑part logistics to ensure uninterrupted operation.
Ready to Upgrade Your Coal‑Fired Boiler?
Contact our sales engineering team today to discuss pricing, technical details, and delivery options for tubular air heater for coal fired boiler wholesale. Let us help you achieve higher efficiency, lower emissions, and a stronger bottom line.