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  • Flue Gas Heat Recovery Heat Exchanger
  • Flue Gas Heat Recovery Heat Exchanger
  • Flue Gas Heat Recovery Heat Exchanger
  • Flue Gas Heat Recovery Heat Exchanger
Flue Gas Heat Recovery Heat ExchangerFlue Gas Heat Recovery Heat ExchangerFlue Gas Heat Recovery Heat ExchangerFlue Gas Heat Recovery Heat Exchanger

Flue Gas Heat Recovery Heat Exchanger

Thermal Efficiency: Utilizes cutting-edge heat transfer technology for optimal energy conversion from waste flue gas to usable energy.
Temperature Range: Efficiently processes flue gas temperatures from 180°C to 75°C, enabling significant heat recovery from lower temperature gases.
Material Durability: Made with high-grade fluoroplastic (PFA) from DuPont and Daikin, resistant up to 260°C and ensuring a lifespan of 8-10 years.


The Flue Gas Heat Recovery Heat Exchanger represents a significant advancement in environmental and energy efficiency technologies. By harnessing the potential of fluoroplastic technology, this innovative system recovers waste heat from flue gases, a byproduct of industrial processes, and converts it into usable energy. This process not only conserves energy but also substantially reduces emissions, aligning with global efforts towards sustainability. The use of this heat exchanger underscores a commitment to energy conservation and emission reduction, offering a greener alternative to traditional heat recovery methods.

Product Description

The design of the Flue Gas Heat Recovery Heat Exchanger is a testament to innovative engineering, featuring fluoroplastic (PFA) materials procured from industry leaders like DuPont and Daikin. This choice of material ensures unmatched corrosion resistance and durability, particularly against the acidic components of flue gases. The heat exchanger employs a column tube design, with the orientation of the tubes parallel to the direction of the flue gases, minimizing air resistance and maximizing heat transfer efficiency. A key feature of this design is its minimal air resistance, which facilitates the efficient transfer of heat without compromising the flow of flue gases.

Additionally, the fluoroplastic tube bundles are inherently smooth, reducing the likelihood of ash deposition and scaling, which can hamper heat transfer efficiency in traditional systems. To further ensure optimal performance and ease of maintenance, the heat exchanger is equipped with a cleaning mechanism designed to maintain the cleanliness of the tubes, thereby sustaining high levels of efficiency over time. This detailed attention to materials, design, and functionality positions the Flue Gas Heat Recovery Heat Exchanger as a superior solution for industries seeking to enhance their energy efficiency and environmental footprint.

Key Features and Benefits

Acid Dew Point Corrosion Resistance

The Flue Gas Heat Recovery Heat Exchanger is engineered to function efficiently below the acid dew point, showcasing exceptional resistance to corrosion. This capability ensures it can operate in environments where traditional heat exchangers might fail due to acidic corrosion, thereby enhancing reliability and operational safety.

Low-Temperature Flue Gas Heat Recovery

Designed to recover heat from flue gases at temperatures ranging from 180°C down to 75°C, this heat exchanger outperforms traditional metal heat exchangers. This feature allows for the recovery of energy from low-temperature flue gases, which would otherwise be wasted, enhancing overall system efficiency.

Long Service Life

With an expected operational lifespan of 8-10 years and a notably short investment payback period, the Flue Gas Heat Recovery Heat Exchanger represents a cost-effective solution for long-term energy recovery operations. This longevity is a testament to the durability of the fluoroplastic materials used in its construction.

Material Advantages

The use of fluoroplastic materials not only provides excellent resistance to acidic corrosion and high temperatures but also offers self-cleaning properties. This minimizes the likelihood of scaling and fouling, thereby reducing maintenance requirements and ensuring sustained operational efficiency.


Compared to traditional metal heat exchangers, the Flue Gas Heat Recovery Heat Exchanger offers several significant advantages:

Extended Lifespan: Thanks to its corrosion-resistant fluoroplastic materials, it boasts a longer service life, reducing replacement and maintenance costs.

Broader Temperature Range for Heat Recovery: Its ability to recover heat from lower temperature flue gases expands its utility and efficiency, enabling energy recovery that is not feasible with metal heat exchangers.

Corrosion Avoidance: Operating safely below the acid dew point without the risk of corrosion, it avoids the deterioration issues common in metal counterparts, maintaining performance over time.

Energy Savings and Emission Reduction: By recovering waste heat more effectively, it significantly reduces the energy requirements and carbon footprint of industrial processes, offering both economic and environmental benefits.

Material Specifications

The specific technical specifications for the Flue Gas Heat Recovery Heat Exchanger include:

Dimensions: Tailored to meet the needs of the installation environment and application, ensuring optimal integration and performance.

Heat Exchange Surface Area: Varied based on the model and configuration, designed to maximize heat transfer efficiency for the volume of flue gas treated.

Flue Gas Volume Capacity: Engineered to accommodate a wide range of flue gas volumes, ensuring versatility across different industrial applications.

Pressure Ratings: Suitable for operation within the specific pressure ranges encountered in flue gas applications, ensuring safe and reliable operation.

Standards and Certifications: Meets or exceeds relevant industry standards and certifications, demonstrating compliance with safety, environmental, and operational benchmarks.

Additional Components and Accessories

The Flue Gas Heat Recovery Heat Exchanger can be enhanced with a range of optional accessories and components designed to optimize performance, ease of maintenance, and operational efficiency:

Mounting Brackets: Custom-designed mounting solutions to facilitate secure and stable installation in various industrial environments, ensuring the heat exchanger operates under optimal conditions.

Cleaning Systems: Automated or manual cleaning systems specifically designed for the fluoroplastic surfaces of the heat exchanger. These systems help maintain the efficiency of heat transfer by preventing the accumulation of particulate matter or scaling.

Temperature and Pressure Monitoring Sensors: High-precision sensors that continuously monitor the temperature and pressure within the heat exchanger. These sensors provide critical data that can be used for performance optimization and early detection of issues requiring maintenance.

Replacement Parts: A comprehensive range of replacement parts, including fluoroplastic tubes, gaskets, and seals, ensuring quick and efficient maintenance or repairs, minimizing downtime and extending the service life of the heat exchanger.

Control Systems: Advanced control systems that automate the operation of the heat exchanger, optimizing its performance in real-time based on the specific requirements of the process and environmental conditions.


The Flue Gas Heat Recovery Heat Exchanger finds applications across a broad spectrum of industries, contributing to significant improvements in energy efficiency and operational cost-effectiveness:

Power Generation

In thermal power plants, the recovery of waste heat from flue gases can significantly improve the efficiency of electricity generation, reducing fuel consumption and lowering emissions.


Industries such as cement, steel, glass, and chemical manufacturing, where high-temperature processes generate considerable amounts of waste heat, can benefit from the heat exchanger to recover energy, thereby reducing operational costs and enhancing sustainability.

Waste Management

In waste-to-energy plants, the heat exchanger can recover heat from the combustion of waste materials, improving the efficiency of energy production from waste and contributing to more sustainable waste management practices.


The petrochemical industry, where processes often involve high temperatures and corrosive substances, can utilize the heat exchanger for energy recovery, reducing the energy footprint of petrochemical production.

Frequently Asked Questions (FAQs)

Frequently Asked Questions.png

1. What is a Flue Gas Heat Exchanger?

Answer: A Flue Gas Heat Exchanger is a system designed to recover heat from the exhaust gases (flue gases) emitted by industrial processes or combustion systems. This recovered energy can then be used to preheat feedwater for boilers, process heating, or other heating requirements within the facility. The use of fluoroplastic materials in some heat exchangers, like the Flue Gas Heat Recovery Heat Exchanger, allows for operation in corrosive environments and at lower temperatures than traditional metal heat exchangers, enhancing efficiency and sustainability in energy use.

2. How Do You Recover Heat from Flue Gas?

Answer: Heat recovery from flue gas is achieved through the use of a heat exchanger, where flue gas is passed on one side and a working fluid (such as water or air) on the other. The heat from the flue gas is transferred to the working fluid without direct contact, raising its temperature and thus recovering waste heat. The Flue Gas Heat Recovery Heat Exchanger, particularly those made from fluoroplastic materials, optimizes this process by efficiently transferring heat even from low-temperature flue gases and resisting corrosion that can occur from acidic gases.

3. What is the Heat Recovery System for Flue Gas?

Answer: The heat recovery system for flue gas encompasses the equipment and methodologies used to reclaim and reuse heat from exhaust gases. This system typically includes a heat exchanger, ductwork for directing flue gases, controls for managing the flow and temperature, and possibly a cleaning mechanism to maintain heat transfer efficiency. The primary goal is to improve overall energy efficiency, reduce fuel consumption, and decrease emissions by capturing and repurposing the thermal energy that would otherwise be lost to the environment.

4. What Equipment is Used to Recover the Heat from the Flue Gases?

Answer: The key piece of equipment used to recover heat from flue gases is a heat exchanger. In particular, the Flue Gas Heat Recovery Heat Exchanger made from fluoroplastic materials is used for its durability, corrosion resistance, and ability to recover heat from gases at lower temperatures. Additional equipment may include fans or blowers to move the flue gas through the exchanger, pumps to circulate the working fluid, temperature and pressure sensors for monitoring system performance, and cleaning systems to maintain heat transfer efficiency by removing any deposits from the heat exchanger surfaces.

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