H-type finned tubes are characterized by their unique design, where two steel sheets are welded symmetrically to form fins. The front of the fin resembles the letter "H," hence the name. This design is particularly effective in recovering waste heat from exhaust gases in power plants and industrial boilers.
These tubes feature double rows of fins, further enhancing heat transfer capabilities. They are ideal for applications requiring high thermal efficiency and durability, such as marine boilers and industrial furnaces.
The production of square finned tubes involves several precise steps to ensure high quality and efficiency. The process typically includes:
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Fin Formation: Steel plates are stamped and sheared to form fins, which are manually coded into an automatic unloading hopper.
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Welding: The steel pipe is transported to the welding position, where fins are automatically positioned and welded to the base tube using high-frequency resistance welding. This ensures a solid, smooth weld with a fusion rate exceeding 97%.
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Quality Assurance: The finished tubes undergo rigorous testing, including hydrostatic, pneumatic, and eddy current tests, to ensure they meet industry standards.
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