| 摘要 |
PURPOSE:To heat a burner main body and keep the temperature thereof efficiently by a method wherein a heat resistant heat absorbing film, which absorbs heat rays from a red-heat radiation member, is formed on the outer surface of the burner main body. CONSTITUTION:Liquid fuel and primary combustion air are sent forcibly into an premixed in an evaporating chamber, whose peripheral wall 11a is heated by an electric heater 19 for evaporating the liquid fuel. The premixture gas is injected into a combustion chamber tube 25 from a flame port member 21 through an introducing path 20. Here, the gas is ignited and is burnt under forming blue combustion flame 22. Then, the combustion gas heats the red-heat radiation member 24 to a red-heat high temperature. According to this method, the heat rays, radiated to forward direction, permeates a heat rays permeating body 26 and effects the effect of room heating by radiation. On the other hand, the heat rays, radiated downwardly, is projected to the burner main body 11 directly or after reflected on the inner wall surface of the combustion chamber tube 25 and is absorbed by the heat resistant heat rays absorbing film A. Thereafter, the heat is transferred to the burner main body 10. According to this method, the burner main body may be heated and the temperature thereof may be kept efficiently within a wide range while the electric power consumption of the electric heater 19 may be saved and deformation, dissolution or the like of the burner main body may be prevented. |
