Air -Preheaters

Reliable Structure & Stable Performance
The unit features excellent rigidity to withstand high-temperature flue gas erosion and thermal expansion, ensuring long-term, stable operation under demanding conditions.

Efficient Heat Transfer & Energy Savings
Optimized flow paths and heat exchange elements significantly increase the overall heat transfer coefficient, maximizing waste heat recovery and lowering exhaust gas temperatures.

Flexible Material Selection for Diverse Applications
Materials can be tailored to different flue gas temperatures, media characteristics, and operating environments, making our air preheaters suitable for a wide range of industrial applications.

Standardized Manufacturing with Strict Quality Control
Full-process quality assurance procedures and necessary pre-shipment performance tests are implemented to deliver reliable and consistent products.

Vibration Resistance & Extended Service Life
A well-designed structure effectively minimizes flow-induced vibration, reduces tube wear and fatigue failure, and prolongs maintenance intervals.

Strong Adaptability & Easy Maintenance
Customization is available based on your specified heat exchange area, flue gas volume, and installation space. Our air preheaters are fully compatible with various boiler and furnace flue systems.

Application Fields

• Power industry: waste heat recovery from flue gas of coal-fired utility boilers.

• Petrochemical industry: air preheating for various heating furnaces and reformers.

• Metallurgical industry: heat recovery from blast furnaces and rolling heating furnaces.

• Environmental protection: waste heat recovery in waste-to-energy plants and organic waste gas treatment systems.

• Other industrial sectors: high-temperature flue gas heat recovery applications.

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Qingdao Ruichen has long been dedicated to the R&D and manufacturing of air preheaters and various heat exchange equipment. With a comprehensive quality assurance system and extensive experience in non-standard customization, our products strictly comply with GB/T 151 and ASME standards. We welcome inquiries and custom orders based on your drawings or samples.