The effect of the H-shaped fin structure on dust accumulation and wear: The gap between the two fins uses the flow of smoke and the erosion of the dust because the smoke has a higher flow rate at the gap; the pipes are arranged in a line, and the resistance Small wear and small wear; H-shaped fins can effectively use the flow space and maintain a large fin area and fin ratio; the thickness of the fins can be arbitrarily selected according to the needs of anti-wear; the fins are parallel and independent of each other, and there is no helix angle The influence of ash, thus facilitating the removal of ash.
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