用试验研究并分析了垂直烧结多孔层通道内通道间隙、粒度、层厚及视观高度对沸腾传热的影响。研究表明，对在同一热流下存在一个最佳通道间隙及粉末粒度范围。适当增大多孔层厚度将有利于沸腾传热系数的提高，而热虹吸高度的降低将不利于沸腾传热系数的增大。 The influence of channel clearance, particle size, layer thickness and apparent height on the heat transfer of boiling in the channel of vertically sintered porous layer was studied and analyzed with experiments. Studies have shown that there is an optimum channel clearance and powder particle size range for the same heat flow. Properly increasing the thickness of the porous layer will be conducive to the improvement of boiling heat transfer coefficient, while the reduction of thermal siphon height will not be conducive to the increase of boiling heat transfer coefficient.