Two round tubes can share a set of fins, called HH finned tubes. On the one hand, the double H fin tubes can expand the heating surface to increase the heat transfer coefficient, and the extended heating surface unit has a self-cleaning function, which can slow down the deposition, blockage, and abrasion of smoke and dust on the heating surface. On the other hand, the H fins bending deformation, twisting deformation, and wave deformation of the sheet have been effectively controlled. Ensure the reasonable service life of the heating surface, and ensure the safe and economical operation of the waste heat boiler.
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