What causes a sudden rise in the flue gas temperature of a heating furnace?
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What causes a sudden rise in the flue gas temperature of a heating furnace? Previously, the temperature was around 160 degrees; the water pump wasn’t pumping out any water, and there was no vaporization. It just won’t come down. Could that expert give some advice?
Insufficient air supply to the furnace, with air leaks in the upper part of the furnace causing afterburning； Or combustion of soot accumulated in the flue.
It can be analyzed as insufficient combustion; one reason could be an oversized air damper, and the other could be a problem with the fuel. You need to go to the site to check for the specific issue
The flame moves upward, or the air supply conditions change, reaching an optimal state
It can be said that afterburning is the main cause; the likelihood of equipment failure is low. When a problem occurs, the temperature keeps rising gradually, without any sudden changes.