Can oil in the fuel gas of a heating furnace cause it to shut down?
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Can oil in the fuel gas of a heating furnace cause it to shut down? The reaction heater (2MW) of the hydrogenation unit suddenly shut down. There were no changes in the pressure of the fuel gas entering the furnace or in its flow rate; the interlock system did not activate before the furnace went out, and the equipment showed no reaction either. Suddenly, the heating furnace stopped working. The only exception was the zirconia analyzer located on the top of the radiation chamber, which gave an alarm one minute after the fire was extinguished, with its reading changing from 2.9% to 1.4%. What is the reason for this?
Oil in the fuel gas of a heating furnace can cause a flameout at the bottom of the furnace, but water in the fuel gas is another matter – water in the fuel gas will cause the flame to go out.
Water in the fuel gas can cause the entire furnace to shut down. However, there are two issues here that I find a bit strange and also a bit dangerous: First, isn’t there a perpetual light? If so, aren’t they separate fuel systems? Second, does the oxygen content decrease after shutdown? Did the fan stop? Is the baffle closed?
The fuel gas for the permanent light in our heating furnace is the same as that used in the main burner; oil in it will cause the flame to go out. As long as the eternal flame burns, the main burner will not go out.
This post was last edited by lnh799 on 2016-6-30 at 22:12. The phenomenon described by the original poster does not seem to be caused by oil in the fuel gas; if there were oil in the fuel gas, it would not cause all the burners in the furnace to go out suddenly. Has a sample of the fuel gas been taken for analysis? There may be large amounts of non-flammable gases in it (such as nitrogen)
Is the fuel gas you use dry gas? Is it desulfurized using ethanolamine? In that case, it is likely that water or ethanolamine in the fuel gas caused the furnace to shut down, which is very dangerous.