A DUAL FUEL BURNER FOR GASEOUS FUELS WITH LOW POLLUTANT EMISSIONS, HIGH BURNING EFFICIENCY AND HIGH FLAME STABILITY FOR TWIN FUELS

摘要

The invention relates to a dual fuel burner for gaseous fuels with low pollutant emissions, high burning efficiency and high flame stability for twin fuels, comprising : (a) an innermost pipe (2) for a higher calorific value fuel and immediate annular pipe (3) for supply of corresponding air, which air is supplied in three stages through a plurality of holes (4,5,6); (b) an outermost two annular pipes are used for low calorific value fuel and its air, second fuel is supplied through second annular pipe (8) and corresponding air send through outermost annular pipe (11) (c) a first swirler block (18) provided for third staged air (6) to facilitate swirling action; and (d) a second swirling block (19) provided for low calorific value fuel to swirling action for better mixing of fuel and air.