环隙下料式流化床-提升管耦合反应器的内截面压力特性

发布时间：2018-04-29 12:27

本文选题：环隙下料管 + 耦合反应器　；参考：《过程工程学报》2016年06期

【摘要】：在流化床-提升管耦合反应器大型冷模实验装置中,研究了添加内构件前后环隙内压力特性沿轴向的分布规律.结果表明,环隙内各截面的压力均随流化床内表观气速增大而增大;添加内构件前,受窜气影响,环隙内各截面压力较大、波动性较强.在环隙下料管出料口下方80 mm处添加内构件后,环隙内各截面压力明显降低、波动性明显减弱,由流化床经环隙下料管出料口反窜到环隙内的流化风减少,装置的窜气现象得到一定程度改善,环隙下料管内下料更平稳.
[Abstract]:The axial distribution of pressure characteristics in the front and rear annulus of a fluidized bed / riser coupled reactor was studied in a large scale cold model experimental device. The results show that the pressure of each section in the annulus increases with the increase of the apparent gas velocity in the fluidized bed. After adding inner components at 80 mm below the outlet of annular discharge tube, the pressure of each section in the annular gap is obviously reduced, the fluctuation is obviously weakened, and the fluidization wind from the outlet of the tube through the annular gap to the annular gap is reduced. The gas channeling phenomenon of the device is improved to a certain extent, and the discharge in the annular gap is more stable.
【作者单位】：中国石油大学(北京)重质油国家重点实验室;
【基金】：国家重点基础研究发展规划(973)基金资助项目(编号:2012CB215004)
【分类号】：TQ051.13

【相似文献】