Excessive temperature difference between the inlet and outlet of the heating furnace
Thread Content
What can be the reasons for an excessive temperature difference between the inlet and outlet of a heating furnace?
I couldn’t understand the question – isn’t a heating furnace meant for heating, after all? If there is no temperature change at the inlet and outlet, then it can’t be called a heating furnace
Is there a limit on the temperature difference between the inlet and outlet? What will happen if it is higher than the designed value?
Be more specific, for example, what is the temperature at the inlet, what is it at the outlet, what is the medium, and what type of heating furnace is it?
The flow rate of the heated medium is too low, or there is too much fuel
It’s too hot. On the surface, it seems that your production capacity has increased, but in reality both the volumetric heat intensity and the surface heat intensity have exceeded the designated values. Over time, coking will form inside the furnace! The heated medium has undergone a chemical change! This was one of the factors in the explosion of a heat transfer oil furnace in Shandong a few days ago!
The furnace exit temperature is determined by the reaction temperature, while the inlet temperature should be set by the preheater before feeding the material. A low inlet temperature indicates that the heat exchange efficiency of the preheater is poor; has the heat exchanger clogged?