Comparison of heat pipe anti-corrosion and non-anti-corrosion in petrochemical flue gas systems
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It relates to the performance of anti-corrosion heat pipes in the air heater of a certain petrochemical furnace over a period of 3 years. Operating conditions: flue gas from the medium heating furnace, temperature at the inlet is 180 degrees and at the outlet it is 120 degrees. Anti-corrosion treatment of carbon steel surfaces prevents metal corrosion and flue gas scaling. The left side is black with an anti-corrosion coating, while the right side has a grayish-white metal surface without any anti-corrosion treatment.
In petrochemical flue gas systems, a clear difference can be observed after 3 years of operation between heat pipes with anti-corrosion measures and those without such measures. Heat pipes with anti-corrosion coatings maintain a good surface condition, preventing metal corrosion and soot buildup, thereby preserving heat exchange efficiency and extending their service life. Conversely, the surface of the uncoated heat pipe suffered from corrosion and scaling, which not only affected the heat exchange efficiency but also reduced the equipment’s service life. Therefore, it is very necessary to carry out appropriate anti-corrosion treatment. .
May I ask what type of anti-corrosion coating is being used?
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