Utilization of flue gas heat from 1 million tons of delayed coking heaters
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In this device, the temperature of the flue gas from the heating furnace is 380 degrees; even after heat exchange with the air supplied by the blower, the temperature remains around 130 degrees. What other uses can this flue gas have? Energy conservation first!
The flue gas after heat exchange in this furnace reaches 130 degrees Celsius, which is already quite low for such a furnace. The flue gas from this furnace is discharged by the draft from the chimney. An excessively low flue gas temperature can prevent the flue gas from being discharged, leading to shutdown of the furnace; in severe cases, this can result in safety accidents. At the same time, excessively low flue gas temperatures can also cause dew point corrosion of the shell. Given this, requiring an excessively low flue gas temperature is not worth the cost.
This temperature is already very low; dew point corrosion should be occurring! Cutting it further will do more harm than good
Why does it prevent the smoke from escaping?
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Can’t the smoke be expelled when the temperature is low, sir? What does it mean to shut down a furnace? Ask the expert for advice
When the temperature is low, the flue gas cannot be expelled, which is true in comparison to situations where exhaust is carried out through a chimney at the top; however, if there is an exhaust fan (with sufficient capacity), there is no problem.