‌Copper Tube Aluminum Fin Coil for Heat Exchanger

‌Copper Tube Aluminum Fin Coils are efficient heat transfer elements widely used in heat exchange equipment. Their core structure combines copper base tubes with aluminum fins. Key information is summarized below:

I. Copper Tube Aluminum Fin Coil Structure and Design

1. ‌Core Components‌

   • ‌Copper Base Tubes‌: Serve as thermal conduits for heat transfer media (e.g., steam, refrigerant). Tube diameter, wall thickness, and length critically impact thermal conductivity efficiency.
   • ‌Aluminum Fins‌: Tightly bonded to copper tubes via rolling or welding processes, significantly increasing heat dissipation area and enhancing heat exchange. Common fin types include plain, corrugated, and slotted fins (which interrupt fluid boundary layers to promote turbulence).

2. ‌Composite Processes‌

   • ‌Rolling Method‌: Optimizes fin height by adjusting rolling reduction and tube wall thickness, minimizing contact thermal resistance and improving structural stability.
   • ‌Welding Method‌: Requires precise brazing process control to avoid failure due to poor bonding.

II. Copper Tube Aluminum Fin Coil Performance Advantages

1. ‌High-Efficiency Heat Transfer‌

   • Combines copper’s high thermal conductivity with aluminum fins’ large surface area, dramatically improving heat transfer. Fin surfaces may feature hydrophilic or anti-corrosion coatings to resist fouling and corrosion.
   • Aluminum fins disrupt fluid boundary layers and induce turbulence, further enhancing heat exchange.

2. ‌Cost Efficiency and Reliability‌

   • Aluminum reduces weight and cost, while copper ensures pressure resistance and media compatibility.
   • Complies with industry standards (e.g., Technical Specifications for Metal Composite Finned Tube Convection Radiators JB/T 11248-2012), ensuring long-term operational stability.

III. Copper Tube Aluminum Fin Coil Applications

• ‌Industrial‌: Boiler heat dissipation, steam exchange, chemical processing equipment, waste heat recovery systems (e.g., refineries, power plants).
• ‌Civil Use‌: Central air conditioning evaporators/condensers, greenhouse heaters, radiators.

IV. Copper Tube Aluminum Fin Coil Procurement Considerations

1. ‌Customization‌: Specifications (fin height, tube diameter) and coatings (anti-corrosion/wear-resistant) can be tailored to operational needs.
2. ‌Supplier Selection‌: Prioritize manufacturers with mature rolling processes (e.g., in Hebei Cangzhou Datang). Ensure process consistency to prevent brazing defects.