How to solve the problem of ash and scale accumulation in the furnace tubes of the convection section in petrochemical heating furnaces?
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The heating furnace is one of the main energy-consuming devices in oil refining plants. After long-term use, a large amount of dirt accumulated on the outer wall of the convective section furnace tubes, resulting in an increase in the flue gas exit temperature and reducing the thermal efficiency of the heating furnace. In particular, a large amount of corrosion products accumulated on the surface of the furnace tubes in the convection zone, resulting in under-scale corrosion and accelerating the corrosion of the furnace tube surfaces. The image below shows the ash accumulation in the convection section of the heating furnace. What methods can be used to remove it?
Chemical cleaning can be used. Chemical cleaning of the convection section of the heating furnace can improve its efficiency and extend the service life of the furnace tubes in that section. Using this cleaning method yields better results than high-pressure water cleaning, and it helps to prevent corrosion of the furnace tubes ； It is much cheaper to clean with it than with dry ice. Therefore, this method is an effective way to address the corrosion of the furnace tubes in the convection section of heating furnaces and to improve the efficiency of such furnaces.
It seems there is no blower. Chemical cleaning is recommended, followed by the installation of soot blowers; regular soot blowing can help reduce the accumulation of ash and scale in the furnace tubes.