| 摘要 |
PROBLEM TO BE SOLVED: To improve the heat efficiency of the whole of a combustion system equipped with a combustion device capable of producing combustible gas by the combustion gasifying effect of fuel. SOLUTION: The combustion system is equipped with combustion devices 4, 5, into which fuel and combustion air are supplied. The combustion devices produce combustible gas by the combustion gasifying effect of the fuel in the combustion area of a furnace. The combustion devices are provided further with gas purifying devices 61, 64 for purifying the combustible gas and a heating device 1 capable of introducing the combustible gas purified through the gas purifying devices. The heating device is equipped with combustion areas 13, 14, into which the combustible gas is introduced, and heat storage bodies 11, 12 capable of being contacted with low-temperature air through heat transfer contact to supply continuously the high-temperature air, heated by the heat storage bodies, into the combustion devices as combustion air and introduces one part of the high-temperature air to produces high- temperature secondary combustion waste gas in the combustion areas through combustion reaction between the high-temperature air and the combustible gas. The heat storage bodies store heat through heat transfer contact with the secondary combustion waste gas while the stored heat is dissipated into the low-temperature air to heat the same so as to obtain high-temperature air and the combustion devices produce the combustible gas through the combustion reaction between the high-temperature air and the fuel. |
