Temperature difference between the inlet and outlet gases of the transformation furnace
Thread Content
After the synthesis ammonia system is shut down for maintenance and restarted, the shift catalyst needs to be heated. Question: When heating the shift catalyst, what temperature difference should exist between the inlet and outlet temperatures of the electric furnace in order to prevent the furnace from being damaged? What is the relationship between the power of the electric furnace and the volume of gas flow?
The high power of the electric furnace allows for an increased gas flow rate, and it also ensures the temperature of the gas exiting the furnace. To determine whether the electric furnace has burned out, it is necessary to adjust the current and voltage based on the furnace’s rated power.
Generally, the electric heaters used for transformation are far-infrared electric heaters, and there are no special requirements regarding temperature rise. If it is an electric furnace wire, then it is necessary to ensure that the surface temperature of the wire does not exceed 900 degrees. On this basis, conduct a heat balance calculation. The temperature rise is primarily determined based on the air velocity, in order to ensure the safety of the electric furnace wire.