Abstract: An object of the present invention is to provide a combustion apparatus equipped with a pilot burner and a main burner capable of establishing a stable combustion state without involving generation of CO and unburned substances at the main burner even when the supply of a gas fuel to the pilot burner is stopped. A combustion apparatus equipped with a pilot burner and a main burner according to the present invention is characterized in that, when the main burner is in a combustion state, the amount of air supplied to the pilot burner can be adjusted. Here, the amount of air supplied to the pilot burner is an amount allowing the pilot burner to be cooled.

Abstract: An object of the present invention is to provide a combustion apparatus equipped with a pilot burner and a main burner capable of establishing a stable combustion state without involving generation of CO and unburned substances at the main burner even when the supply of a gas fuel to the pilot burner is stopped. A combustion apparatus equipped with a pilot burner and a main burner according to the present invention is characterized in that, when the main burner is in a combustion state, the amount of air supplied to the pilot burner can be adjusted. Here, the amount of air supplied to the pilot burner is an amount allowing the pilot burner to be cooled.

Abstract: A combustion apparatus for NOx reduction and CO reduction capable of achieving stable NOx reduction with simple means. The combustion apparatus for fulfilling NOx reduction by controlling the temperature of combustion gas derived from a burner 1 includes NOx reduction means having an excess air ratio versus NOx characteristic that generated NOx value decreases with increasing excess air ratio of the burner 1, and an excess air ratio versus CO characteristic that exhaust CO value increases with increasing excess air ratio, and excess-air-ratio control means for controlling the excess air ratio of the burner 1 to a specified excess air ratio, wherein the excess-air-ratio control means includes outside-air temperature detection means 2 and controls the excess air ratio to the specified excess air ratio based on a detection signal derived from the outside-air temperature detection means 42.

Abstract: A combustion apparatus for NOx, reduction and CO reduction capable of achieving stable NOx, reduction with simple means. The combustion apparatus for fulfilling NOx, reduction by controlling the temperature of combustion gas derived from a burner 1 includes NOx, reduction means having an excess air ratio versus NOx, characteristic that generated NOx, value decreases with increasing excess air ratio of the burner 1, and an excess air ratio versus CO characteristic that exhaust CO value increases with increasing excess air ratio, and excess-air-ratio control means for controlling the excess air ratio of the burner 1 to a specified excess air ratio, wherein the excess-air-ratio control means includes outside-air temperature detection means 2 and controls the excess air ratio to the specified excess air ratio based on a detection signal derived from the outside-air temperature detection means 42.