To provide a lean-rich combustion device, in which a burner for thick gas and a burner for thin gas can be easily ignited, while reducing NOx.
The burners 4 for thick gas, having long burner holes 3 for thick gas for discharging and burning the thick mixed gas of fuel gas and combustion air and the burners 6 for a thin gas having long burner holes 5 for discharging and burning the thin mixed gas of fuel gas and combustion air are arranged alternately, in a direction perpendicular to the longitudinal direction, while the burner holes 3 for thick gas are located at both the sides of the burner hole 5 for thin gas; the total amount of fuel gas for the thin mixed gas discharged from the burner holes 5 for thin gas is set to two times or more of the total amount of fuel gas for the thick mixed gas, discharged from the burner holes 3 for the thick gas. An ignition means 30 is provided for igniting the burner 6 for the thin gas, for the burner 4 for the thick gas and for the burner 6 for thin gas.
TANIMURA YOSHITAKA
SAGA TSUGUYOSHI
HARMAN KIKAKU KK
| JPH05231621A | 1993-09-07 | |||
| JPH08178216A | 1996-07-12 | |||
| JPH10267231A | 1998-10-09 |
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