Serrated fin tube for heat exchanger
The
serrated finned tube is a finned tube made by high-frequency welding. Its material selection is diverse, mainly including carbon steel, corrosion-resistant steel (ND steel), stainless steel, alloy steel, etc. The selection of these materials makes the serrated finned tube suitable for a variety of working conditions, including but not limited to corrosive environments.
HF welded spiral finned tube is the most widely used of the spiral finned tube, widely used in electric power, metallurgy, cement industry preheating collection and petrochemical industries. High-frequency spiral finned tube is welded steel strip coil pipe at the same time, using high-frequency currents of the skin effect andproximity effect of steel tube, and surface heat until melted in the plastic state or steel strip coil, the complete welding under certain pressure. This kind of high frequency welding as a solidphase welding. It with Mosaic, brazing (or whole galvanized) method, whether in product quality (fin of weld rate is high, of 95%), or the productivity and automation degree, are more advanced.
Description
1 Tubing outside diameter 3/4" to 4"
2 Tubing length Up to 30 standard.
3 Number of fins per inch 2 to 8
4 Fin height 3/8" to 1 1/2"
5 Fin thickness 0.015",0.02",0.03",etc.
6 Tube wall thickness Min 0.1"
7 Fin material Copper, Carbon Steel
8 Tube material Some Ferrous, Some Non-Ferrous, & Some Alloys
9 Operating temperature Up to 200ºC
The material specifications of serrated finned tubes include carbon steel, corrosion-resistant steel (ND steel), stainless steel, and alloy steel.
The heat dissipation of finned tubes is better than that of light tubes, mainly due to the presence of fins, which increases the heat dissipation area, allowing heat to be quickly transferred to the air.
The serrated finned tube also has the possibility of customized processing, including but not limited to customized materials, wall thickness, fin thickness and height, etc., to meet specific heat transfer requirements and working conditions.
When choosing a serrated finned tube, in addition to considering the material, you also need to consider its specifications, such as diameter, length, fin spacing and height. The selection of these specifications directly affects the heat exchange area and heat exchange efficiency, so it is necessary to make a reasonable selection according to actual needs.
For example, common diameters include 20mm, 25mm, 32mm, 42mm, 60mm, 76mm, 89mm, 108/114mm, 140mm, etc., and common lengths include 1m, 1.2m, 1.5m, etc.
Fin spacing and height are also important specifications. Common fin spacings include 3-5mm, 5-8mm, etc., and fin heights include 5-10mm, 10-15mm, etc. The selection of these parameters needs to be balanced according to actual needs to ensure the best heat transfer effect and fluid dynamics performance.
