| 摘要 |
PURPOSE:To prevent back fire from a red heat catalyst as well as make combustion balance better by a method in which two or more catalyzers on which an oxide catalyst is supported are provided and on the back of the main catalyzer, catalyzers with small opening areas are placed with some aperture. CONSTITUTION:In a catalytic combustion device, two catalyzers 5 and 6 are provided at the tip of a vertical type cylindrical combustion device and the catalyzers 5 and 6 are provided with honeycomb-shaped small holes 7 and 8, In this case, the opening area of the small hole 7 of the catalyzer 5 is made smaller than that of the small hole 8 of the catalyzer 6, and some aperture 9 is provided between both the catalyzers 5 and 6. Small holes 11... are drilled in a rectifying plate 10, through which the stream of fuel vapor is uniformly flowed. Also, on the back of the rectifying plate 10, a diffusion plate 12 of metal netting, etc., is provided in order to improve the mixing of fuel and air. |
