Building an aggregative model of fluid phase change in double porosity media and gas-liquid-solid coupling, and analyzing the influences of physical and chemical sedimentation of sulfur, non-Darcy flow effect, gas adsorption and diffusion on fluid flow through theoretical study. 理论研究建立双重介质流体相变与气液固耦合综合模型,研究分析硫物化沉积、非达西流动效应、气体吸附和扩散等因素对流体流动的影响。