太原理工大学学报2017，Vol.48Issue(1)：18-24,7.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.01.003
TBCFB 中鼓泡流化床的流体力学模拟及其进料系统压力分析
Hydrodynamics Simulation and Feed System Pressure Analysis of Bubbling Fluidized Bed in TBCFB
摘要
Abstract
The numerical simulation study was conducted by using Eularian‐Eularian two‐fluid model on a continuous feeding/unloading bubbling fluidized bed (BFB ) , w hich belongs to the TBCFB ,and the pressure balance model of feed system was built on the BFB .The bubbling fluid‐ized bed gas‐solid hydrodynamics properties were discussed by changing feed pipe length ,feed pipe diameter and solid mass flux .The results show that preferable gas‐solid contact effect ap‐pears w hen the feed pipe length is larger than 1.1 m and the feed pipe diameter is larger than 0.1 m .Meanwhile ,with increasing solid mass flux ,solid holdup near the feed port increases as well as the solid holdup and the height of BFB .However ,the rise of solid mass flux increases the sol‐id stack height in feed pipes ,w hich can be decreased by increasing the feed pipe diameter ,reduc‐ing the friction coefficient of pipe wall and the feed pipe embedment depth .This research provides a theoretical basis for the improvement of solid mass flux .关键词
双流体模型/鼓泡流化床/数值模拟/固体质量通量/进料管Key words
two-fluid model/bubbling fluidized bed/numerical simulation/solid mass flux/feed pipe分类
化学化工引用本文复制引用
杨景轩,马腾波,连文豪,赵忠凯,韩念琛,李鹏,郝晓刚,黄伟..TBCFB 中鼓泡流化床的流体力学模拟及其进料系统压力分析[J].太原理工大学学报,2017,48(1):18-24,7.基金项目
中日政府间合作项目资助基于温和热解的低阶煤高效分级利用关键技术与过程集成（2013DFG60060）；山西省国际科技合作项目资助选择性低质煤／生物质的温和热化学转换制高品位液体燃料和化学品的技术（2015081051），低质煤分级利用热解-气化-燃烧多级循环流化床自热再生耦合工艺研发 （）
