How to control the flue gas temperature of a heating furnace
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How to control the flue gas temperature of a heating furnace. Last edited by *ngefei on 2008-1-1 11:21]
It’s difficult to achieve control of the exhaust smoke temperature alone. To reduce the flue gas temperature, a waste heat recovery system can be added
1. First, ensure the supply of heat required by the process medium. 2. Use hot air to assist combustion and enhance fuel burning. 3. Keep the flame length not too long. 4. In furnaces with multiple burners, strive for a uniform temperature distribution. 5. Reduce the flue gas temperature by increasing the heating surface area in the convection section or by installing waste heat recovery devices. 6. Remove sulfur from the fuel to lower the dew point temperature. 7. Use burners that produce low levels of nitrogen oxides. 8. Minimize the number of leakage points in the furnace
In the future, when mentioning problems, you should tell everyone what kind of furnace you are using, such as coal, oil, liquid fuel, gas, or a combination of steam and oil. If we want to keep the flue temperature low in the natural gas stove we use, there is only one possibility: to adjust the combustion ratio and control the temperature of the medium. What’s left is manual labor, to clean and clear the piping equipment.
The original post was posted by la2008china on 2007-12-31 at 14:36. Controlling the smoke exhaust temperature is difficult to achieve. To reduce the flue gas temperature, a waste heat recovery system can be installed. Your post seems to be intended to flood the forum with messages; be careful. Thank you for supporting the forum.
A set of water preheating coils can be designed in the convection section to adjust the temperature, which is also controlled by the water flow rate