【摘要】 本文在试验研究的基础上，根据燃烧空气动力学及流体力学原理，提出了组织强湍动α形燃烧火焰的火床炉炉拱设计新方法．按空气动力学及动量合成法计算前后拱的合成动量应交在前拱直段的２／３～４／５范围内，与前拱直段的交角δ≥１１０°时．前后拱的搭配是适宜的．实验证明这时可以形成α形火焰。更多还原

【Abstract】 Through an experimental study based on furnace aerodynamics and hydredynamic theory the authors have come up with a new method for designing a grate firing furnace arch featuring highly turbulent a-shaped combustion flame.When calculated on the basis of an aerodynamic and resultant momentum method, the resultant momentum of the fornt and rear arch should emerge within the range of 2/3￣4/5 of the front arch straight section.When an intersection angle of δ≥110°with the front arch straight section is formed the coordination of the front and rear arch can be considered as proper.Tests have shown that in such a case the a-shaped combustion flame will result.更多还原