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Different between High Frequency Fined Tube and Fined Tube

Attention:     Issuing time:2019-09-07 17:09

The Difference between High Frequency Fined Tube and Fined Tube
High Frequency Welded Fin Tube
At present, there are many kinds of finned tubes in China, mainly high-frequency welded finned tubes. Although it is more advanced in product quality and production automation compared with mosaic and brazing methods, the heat transfer efficiency of high-frequency welded finned tubes is caused by factors such as difficulty in penetrating the roots of high-frequency welded finned tubes and wrinkles in the roots. There are still many shortcomings in the convenience of ash prevention.
Finned tube
Finned tube is a kind of heat exchange element. In order to improve the efficiency of heat transfer, fins are usually added on the surface of heat exchanger tubes to increase the outer surface area (or inner surface area) of heat exchanger tubes, so as to achieve the purpose of improving the efficiency of heat transfer.
Finned tube, as a heat exchange element, works in high temperature flue gas for a long time. For example, finned tube used in boiler heat exchanger is in bad environment, high temperature, high pressure and corrosive atmosphere, which requires finned tube to have high performance index.
1) Anti-corrosion
2) Anti-wear
3) Low contact resistance
4) High Stability
5) Anti-ash Capability
The advantages of laser welding spiral fins of stainless steel are as follows:
1. By using pulse laser welding technology, the welding of the winding is completed synchronously, and the welding rate of the segment reaches 100%.
2. Laser welding is metallurgical bonding, and the strength of segment welding can reach more than 600 MPa.
3. Laser welding machine adopts servo drive system, the transmission accuracy can reach hourmeter level.
4. Laser welded fin-tube spacing can be less than 2.5 mm, heat dissipation area is increased by nearly 50% compared with high frequency welded tube (fin spacing is more than 4.5 mm), consuming less material per unit area, which can greatly reduce the volume of heat exchanger.
We can provide high quality stainless steel finned tubes, including TP304, TP304L, TP321, TP316L, TP310S, 3TP47H, S32205, S32507, TP904L and so on.
Stainless steel finned tubes can be customized according to customer drawings. Welcome to inquire.


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