BURNER FOR THE COMBUSTION OF LIQUIDS IN THE GASEOUS STATE

摘要

A stationary gasifier (17) is located at a distance (49) from an air aperture plate (35). At the outlet (42) of the gasifier there is a stationary mixing head (29) having a deflector section (31) and lateral outlets (33). Inside of the gasifier (17) is an insert (57) of metal cloth. Fuel supply takes place coaxially through an opening (55) of the air aperture plate. The gasifier (17) is surrounded by an electric heater (39). A flame tube (21) surrounds the gasifier (17) and the electric heater (39) at a distance. The annular space (40) provides a recirculation path for hot combustion gases. When the burner is started up, the electric heater (39) is switched on until the gasifier has the necessary operating temperature. Only then the supply of fuel begin. The fuel/air-mixture is ignited by an electrode (65). Then a flame is formed at the outlets (33) that touches, after a short travel, the flame tube, then emerges from it and expands. Because the flame can immediately expand, only little NOx is formed. A portion of the hot combustion gases is recirculated by the action of the air flowing through the air aperture plate. The recirculated combustion gases are sucked into the gasifier and serve to heat the gasifier (17) after the shutoff of the electric heater (39). (Fig. 2)