A waste heat recovery heat exchanger is a heat exchanger that is suitable for heating air using either flue gas or exhaust gas from high-temperature wastewater boiler tail gas. It is widely used in air heating and cooling for processes such as chemical industry, textile dyeing and printing, machinery, chemical fiber, food, rubber, metallurgy coating, wood drying, leather, and plastic.

The waste heat recovery system employs air-to-air heat exchange to extract energy from high-temperature waste smoke, generating new air for production or heating needs. There's also an air-to-water heat exchange method, which extracts energy from high-temperature waste smoke to produce hot water, used for boiler water replenishment or domestic bathing. The heat exchange tubes are made of φ21x2.0mm seamless steel pipes wrapped around 15x0.5mm corrugated steel strips, forming a spiral shape. They come in three types of pitch: 5mm (D), 6mm (Z), and 8mm (X), and are available in stainless steel or carbon steel.

The heat medium pressure of the waste heat recovery heat exchanger is below 2.2 Mpa, and the temperature is within 350℃. The heat dissipation tubes and fins are made by a special winding machine, ensuring a tight and stable contact with good heat transfer performance, corrosion resistance, long service life, attractive appearance, easy installation, and convenient management.

Industrial emissions release a large amount of high-temperature waste gases, flue gases, and waste heat, which not only waste energy but also pollute the environment. Heat recovery and exchange equipment utilizes the extracted heat energy from the emitted waste heat and flue gases to produce hot air, hot water, or hot oil for reuse in industrial production, thereby achieving the goals of high efficiency, energy conservation, and environmental protection.