Flue Gas Waste Heat Recovery System

In numerous industrial sectors—including textile printing and dyeing, chemical processing, leather manufacturing, and building materials production—thermal oil heaters (also known as organic heat carrier boilers) are critical for process heating. However, a significant operational challenge arises from their high exhaust temperatures. Under normal conditions, the flue gas temperature from these boilers can reach 300-350°C, leading to a substantial waste of thermal energy into the atmosphere. In an era of rising energy costs and global focus on sustainability, this inefficiency is a major concern.

Our advanced Flue Gas Waste Heat Recovery System is the definitive solution to this problem. By integrating a high-efficiency waste heat boiler with your existing thermal oil heater, our system captures and repurposes this valuable waste heat. The recovered energy is typically used to generate low-pressure steam or hot water, which can be utilized elsewhere in your facility, dramatically improving overall energy efficiency and reducing operational expenses.

Key Benefits and Features

• Significant Energy Savings: By recovering and reusing waste heat, the system substantially reduces your facility's primary fuel consumption, leading to direct and immediate cost savings.
• Enhanced System Efficiency: Integrating our system can boost the overall thermal efficiency of your heating operations from a typical 75% to over 92%.
• Environmental Responsibility: Lower fuel consumption directly translates to a reduced carbon footprint. Cooling the exhaust gas also helps mitigate thermal pollution.
• Rapid Return on Investment (ROI): The considerable savings on fuel costs often allow for a full return on your investment in a very short period.
• Customized Engineering Solutions: We are committed to providing comprehensive solutions and engineering, tailored to meet the unique needs of your industrial processes and existing infrastructure.

Performance Analysis of the Waste Heat Recovery System

The following table details the performance and benefits analysis when pairing our waste heat recovery system with thermal oil heaters of various capacities.

Thermal Oil Heater Spec. (10⁴ kcal/h)	Inlet Flue Gas Temp. (°C)	Flue Gas Flow (Nm³/h)	WHB Steam Pressure (MPa)	WHB Evaporation Rate (t/h)	Matching WHB Spec. (t/h)	Outlet Gas Temp. (°C)
120	350	2800	0.7	0.27	0.3	152
200	350	4600	0.7	0.44	0.5	150
300	350	7000	0.7	0.65	0.8	150
400	350	9300	0.7	0.87	1.0	149
600	350	14000	0.7	1.34	1.5	146
800	350	19000	0.7	1.83	2.0	149
1000	350	23000	0.7	2.23	2.5	149
1200	350	28000	0.7	2.73	3.0	147

Note: The product performance and technical parameters listed above are for reference and are subject to change. Please refer to the official ex-factory technical documentation for the final specifications.