Kraus furnace ignition tempering
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What causes ignition backfire in a Klaus furnace? What should be the pressure of gas and air during ignition?
Tempering may occur due to increased resistance in subsequent equipment, or an insufficient pressure of the purge protection nitrogen, among other reasons
The tempering phenomenon in Claus furnace burners usually occurs in some burners that use premixing, and it is more likely to appear under low load conditions. Therefore, burners with premixing functionality generally have pressure monitoring in front of the furnace. Once the pressure becomes too low, the flow of acidic gas into the furnace must be stopped. Backfire during ignition is usually caused by improper control of the fuel gas and air pressures; this often requires on-site adjustment and experimentation in accordance with the manufacturer’s guidelines to determine the optimal operating parameters.