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Taking into account the conditions under which sulfuric acid dew point corrosion occurs, as well as the background related to its detection and identification, this corrosion can be prevented from occurring through three key approaches: controlling the composition of flue gases to reduce sulfuric acid formation; using low-oxygen combustion techniques to lower the excess oxygen content in flue gases and thereby inhibit the conversion of SO₂ to SO₃； At the same time, strict control is exercised over the sulfur content in fuel to reduce the generation of sulfuric acid vapor at the source. Raise the wall temperature to prevent acid dew formation. By enabling hot air recirculation and installing heaters, the wall temperature of the heated surfaces of the equipment can be raised to 110–150°C, above the dew point of sulfuric acid, thereby preventing the condensation of sulfuric acid vapor from occurring in the first place. Corrosion-resistant materials should be used, along with optimized design. Steels resistant to sulfuric acid dew point corrosion such as ND steel (09CrCuSb) are preferred; corrosion-resistant coatings or ceramic/enameled components can also be utilized in combination ； During the design phase, increase the spacing between the heat transfer pipes in the convective zone appropriately to prevent excessive smoke flow velocities from exacerbating erosion.