| 摘要 |
PURPOSE:To prevent generation and adhesion of tar, make the long life of a vaporizing device and get a stable gasified condition by a method wherein several radial projections are arranged at the gasification surface of the gasification cylinder in respect to the center of the gasification cylinder and the gasification cylinder is kept at a temperature higher than the film boiling temperature of a fuel. CONSTITUTION:An oil supplying pipe and air supplying pipe 6 arranged at the side wall of a gasification cylinder 2 are installed so as to supply the combustion air to a gasification chamber 11 in a circulation direction. The gasification surface of the gasification cylinder 2 is provided with several radial projections of which section is trapezoid or semi-shapere under a spacing of 4-5mm. in respect to the center of the gasification cylinder 2. Due to the projections 100, a range of movement of the fuel particles is restricted and a making of big particle caused by a combination of fuel particles by themselves is prevented and at the same time the once generated big particles are struck against the projections 100 to produce division again and dispersed on the gasification surface as fine particles again. The fuel particles flow on the vapor layer present at the interface layer with the gasification surface at the concave gasification surface between the projections and are contacted with the side surfaces of the projections 100, resulting in that a heat transmittance to the fuel particles is promoted and a rapid and stable gasification can be attained.
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