A waste heat recovery heat exchanger is a heat exchanger that is suitable for both flue gas and waste gas or high-temperature wastewater boiler exhaust gas to heat air. It is widely used in the air heating and cooling of various processes, including chemical, textile dyeing and printing, machinery, chemical fiber, food, rubber, metallurgical coating, wood drying, leather, and plastic.

Heat recovery utilizes gas-to-gas heat exchange to extract energy from high-temperature waste smoke, generating new air for production or heating needs. There's also a gas-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. Heat exchange tubes are made of φ21x2.0mm seamless steel tubes wrapped around 15x0.5mm corrugated steel strips, forming spiral finned tube bundles with three rows of staggered fins. The finned tubes come in three different pitch sizes: 5mm (D), 6mm (Z), and 8mm (X), and are made from stainless steel or carbon steel.

The heat recovery heat exchanger's heat medium pressure is below 2.2 MPa and the temperature is within 350°C. The cooling tubes and fins are wound using special winding machines, ensuring tight and stable contact with excellent heat transfer performance, corrosion resistance, long service life, attractive appearance, ease of installation, and convenient management.

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