Application of bimetal rolled finned tube
Heat exchangers predominantly consist of finned tubes, comprising a series of tubes adorned with fins on the exterior. These fins serve to amplify contact surface area with the surrounding fluid, facilitating heat transfer and fluid exchange between the inner tube and the outer environment. Crafted from carbon steel flat tubes clad in aluminum and furnished with brazed aluminum fins, these finned tubes epitomize the core components of heat exchangers.
Available in a diverse array of shapes and dimensions, including round, oval, and flat variants, finned tubes cater to various industrial needs. Particularly, flat tubes, known as SRC (State-of-the-art Rolled Condenser) tubes, represent the pinnacle in air-cooled condenser technology for power plants. Comprised of aluminum-clad carbon steel tubes featuring aluminum-brazed fins, SRC tubes exemplify top-tier construction for demanding applications.
The application of bimetal rolled finned tubes offers notable advantages. With a fining ratio ranging between 13.5 to 22.7, these tubes adeptly meet the demands of diverse process conditions. Boasting a bonding rate exceeding 90%, they sustain temperatures below 210 degrees Celsius over prolonged durations without compromising heat exchange efficiency. The companys product line encompasses both industrial and domestic sectors, comprising various finned tubes, heat pipe heat exchange elements, air heaters, coolers, boiler economizers, and an array of waste heat recovery equipment tailored for specific applications such as professional sintering waste heat boilers and household radiators.
The most prevalent finned tube type for air-based heat exchange applications is the Bimetal Composite Extruded finned tube. This construction method involves tightly fitting an aluminum tube onto a base tube, followed by rolling to form tightly interlocked spiral fins, resulting in a robust bimetal composite structure.
Key benefits of Bimetal Composite Extruded finned tubes include low contact heat resistance, prolonged operational lifespan, smooth fin surfaces, complete insulation of the base tube from the heat exchange medium, resistance to scaling, ease of maintenance, and sustained heat transfer performance. Additionally, a variety of materials such as carbon steel, stainless steel, titanium, and purple copper can be utilized for the base tube, enhancing versatility.
Bimetal composite extruded finned tubes find extensive application across air conditioning, air cooling, power generation, petroleum refining, chemical processing, and various other heat exchange equipment, underscoring their significance in industrial thermal management solutions.
