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How to deal with corrosion and scaling in the heat pipe air heaters of petrochemical heating furnaces?

2026-02-23View Original

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The image below shows the corrosion and scaling on the fins of the heat pipe air heater in a certain petrochemical heating furnace It is mainly caused by the flue gas from the heating furnace. How can the surface of such heat pipes (ND steel) be treated to prevent corrosion and scaling?

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