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Finned tubes are a type of heat exchange tube that is installed with fins on the surface of ordinary straight tubes by welding, winding, rolling, etc. to increase the surface area (or inner surface area) of the heat exchange tube, thereby achieving the purpose of improving the heat exchange efficiency.
Working Principle: Finned tubes are mainly used in the field of heat exchange, and their working principle is to enhance the heat transfer process by increasing the heat transfer area. Heat is transferred from the hot fluid to the fins through the tube wall, and then transferred from the fins to the cold fluid.
The fins are tightly combined with the base tube through the rolling process, and the heat transfer efficiency is high.
The metal strip is wrapped around the base tube, which is suitable for high temperature environments.
The fins are fixed to the base tube by welding, and the connection is firm, which is suitable for high pressure environments.
The fins are put on the base tube, suitable for low temperature environment.
| Item | Details |
|---|---|
| Type | Extruded fin - tube |
| Manufacturing process | Insert smooth core tube into aluminum tube, then extrude fins. |
| Base tube material | Stainless steel, carbon steel, alloy, titanium, nickel, copper, etc. |
| Fin material | Aluminum strip, copper strip |
| Dimensions | Tube dia: 10mm-51mm; Wall: 1.65mm-3mm; Fin pitch: 2mm-15mm |
| Working Temp | 280 °C - 300 °C |
| Application | Petroleum, chemical, steel industry, power generation, air-conditioning. |
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