PURPOSE: To reduce fluidity loss of fuel gas and improve flame maintaining property by turning the air for fuel gas jet of a burner part and equipping an adiabatic structure to the neighborhood of flames formed by characteristics of the burner part.
CONSTITUTION: A fuel lead-in pipe 1 is arranged around the axis of a burner and an air turning swallow hole 2 is set up so that the pipe may be enclosed. This burner is set up to the central part of the outer tube flange 9 of a furnace and connected with and fixed to an adiabatic material supporting inner tube 10 placed at the head of the inner tube 14 of the furnace. The adiabatic material 11 is sticked over all the surface at the inside of a mixed flame piloting chamber 12 and a secondary combustion chamber 15 is formed by equipping secondary air lead-in holes 13 at the enlarged inner tube 10. The temperature near the flame produced in dilute combustion is kept by the adiabatic material and efficient flame piloting can be obtained.
ISHIBASHI YOUJI
UCHIYAMA YOSHIHIRO
