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Exceed low nitrogen burner + outer circulation of FGR flue gas burns gas conduction oil furnace - co

Exceed low nitrogen burner + outer circulation of FGR flue gasConduction oil burning gas furnace12 million kilocalorie / the hour lights boiler of gas conduction oil to realize low nitrogen (the design point that 30mg/Nm3) discharges explains
The flue gas that rear of conduction oil boiler discharges is had very tall use value, to drop flue gas temperature further, install 2T/H (0.3MPa of saturated vapour pressure, saturated vapour temperature 143.62 ℃ ) heat is in charge of more than hot steam boiler, can produce about 2 tons / the saturated vapour that the hour controls, use for the user.
The flue gas temperature of eduction of more than heat boiler is 165 ℃ to control about, to drop flue gas temperature further, in its the rear installs air intake air heater, in atmosphere is being discharged via chimney after temperature of the flue gas after classics overheat is exchanged reduces about 120 ℃ to control. The temperature after normal temperature air passes heat exchange raises about 51 ℃ to control evacuation to undertake combustion-supporting toward burner.
 Through the imitate computation of the lab, reach temperature of the air when discharging chroma to be 30mg/Nm3 highest should not exceed 60 ℃ . When combustion air temperature achieves 90 ℃ to control unwarrantable 30mg/Nm3 low nitrogen is discharged, numeric likelihood is exceeded somewhat.
Must install pipeline of recycle of FGR flue gas to achieve 30mg/Nm3 low nitrogen to discharge, the flue gas that gives to avoid to take contains condenser water, setting of mouth extraction smoke is in empty beforehand implement entry point, recycle flue gas and normal temperature air are passed control valve and adjust the respective automata of air door enters air-blower to enter the mouth after the classics in blender mixes adequately. The control valve of pipeline of recycle of FGR flue gas and the adjustment that blender enters the mouth the automata signal of air door all takes control module to offer oneself by burner.