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What are the corrosion effects of tube furnace tubes?

Time:2021-05-12 09:28 Click:
  
    As we all know, the tube furnace is a simple furnace structure, easy to operate, easy to control, and continuous production equipment. However, if the equipment is not properly operated during the use of the equipment, it is easy to cause the inside and outside of the furnace tube to be affected by corrosion. Therefore, we need to fully understand the causes of corrosion, so as to prevent it reasonably.
two zone tube furnace
The working principle of the tube furnace is: the fuel is burned in the radiant chamber of the tube furnace (a few in a separate combustion chamber), and the heat released is mainly transferred to the furnace tube through radiant heat transfer and convective heat transfer, and then through conduction. Heat transfer and convective heat transfer are transferred to the heated medium, which is the working principle of the tube furnace.
 
   What kind of corrosion affects the inside and outside of the tube furnace tube?
  1) Corrosion of the medium in the furnace tube: sulfur corrosion, naphthenic acid corrosion, hydrogen damage, hydrogen sulfide corrosion, polythionic acid corrosion, etc.;
   2) Corrosion of the medium outside the furnace tube: vanadium corrosion at high temperature parts and dew point corrosion at low temperature parts.
 
   In summary, the causes of corrosion of tube furnace tubes are mainly divided into the above two types. Through detailed understanding of each cause, specific problem solving can be carried out to better use the equipment.
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