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Air Preheater
Recover flue gas heat to pre-heat combustion air, increasing combustion efficiency
The air preheater uses flue gas heat to pre-heat the supply air entering the combustion chamber, improving combustion efficiency and reducing fuel costs. Hot flue gas flows inside the heat exchange tubes, air flows outside and absorbs heat, and air temperature can increase by 100–200°C. Dai Dong Quang provides air preheaters with new designs or reverse engineering from existing equipment, suitable for direct replacement without changing the system structure.


Key Features
High efficiency: maximizes recovery of flue gas heat with high heat exchange efficiency
Energy saving: reduces flue gas heat losses, improves combustion efficiency and reduces fuel consumption
Solid structure, long service life
Easy maintenance and servicing
Applications
Industrial boilers
Industrial furnaces
Industrial drying systems
Systems requiring air pre-heating before combustion
System Solutions
We provide a complete solution package:
1Design, manufacture and installation of air preheaters
2Consulting and solutions to improve thermal system efficiency
3Efficiency and operating cost optimization design
4Consulting for renovation and upgrade of existing systems
Why Choose Dai Dong Quang
Deep expertise: Many years of experience in thermal systems, boilers and thermal oil heaters
Experienced team of experts: PhDs, Engineers and specialists with practical knowledge, providing optimal solutions for each application
Custom design: Flexible customization suited to the specific requirements of each project and industry
Durable, high-efficiency equipment: Quality materials ensure stable long-term operation
Technical support & maintenance: Accompanying customers throughout the system lifecycle
Energy saving: Optimized solutions to reduce operating costs and enhance production efficiency

