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Location : Home > News Center > Lord Fin Tube-High-frequency welding spiral fin tube
Lord Fin Tube-High-frequency welding spiral fin tube

High-frequency high-frequency welding spiral finned tube is one of the most widely used spiral finned tubes, is now widely used in electricity, metallurgy, cement industry, waste heat recovery, and petrochemical industries. High-frequency welding spiral finned tube is wrapped fin strip on steel pipe, while using high-frequency current skin effect and proximity effect heating up the steel strip and pipe outer surface until plastic and melt state and then complete wound strip welding with certain pressure. Such high-frequency welding solid as a solid phase soldering. Compared with embedded, brazed, soldering (or overall hot dip galvanized) so compare with other methods, both in product quality (welded high fin, up to 95%), or the degree of automation and productivity, are much more advanced .

 

The spiral fin tube often used in the economizer, it is newly type heat transfer equipment, consists of spiral fin tubes to overcome the inferior heat efficiency and serious abrasion and short life than the bare economizer . 

 

Finned tube economizer Material structure

Consists of a series of spiral fin tubes, the headers of inlet and outlet, bend, frame and other auxiliaries

 

Finned tube economizer Structural arrangement

In line/staggered arrangement

 

Finned tube economizer Characteristics

1). This type of economizer can largely develop the heat exchanging area than the bare economizer to add the heat transfer area, reduce the volume, compact structure and reduce the number of elbow and welding to make less leakage and add the heat transfer efficiency.

2). Not easy to collect dust and the fume pass through the fin tube to form the boundary layer to occur the vortex to make less chance for the fly ash particle to touch the tube wall.

3). Widely temperature range, high pressure limit.

4). Durable strong impact, reliable operation.

5). Less fume resistance, reduced abrasion and long working life.

 

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