基于CPFD方法的煤气化气固流态化及输送过程强化  

Gas-Solid Fluidization and Transportation Process Intensification for Coal Gasification by CPFD Method

作　　者：姚强 赵元琪 张永明 夏支文 赵陆海波 唐志永[4,5] YAO Qiang;ZHAO Yuan-qi;ZHANG Yong-ming;XIA Zhi-weng;ZHAO Lu-hai-bo;TANG Zhi-yong(Coal to Liquid Branch of China Energy Ningxia Coal Industry Co.,Ltd.,Yinchuan 750411,China;School of Chemical Engineering,Tianjin University,Tianjin 300350,China;Ningxia Shenyao Technology Co.Ltd.,Yinchuan 750411,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China;Anhui Normal University,Wuhu 241000,China)

机构地区：[1]国家能源集团宁夏煤业有限责任公司煤制油分公司,宁夏银川750411 [2]天津大学化工学院,天津300350 [3]宁夏神耀科技有限责任公司,宁夏银川750411 [4]中国科学院上海高等研究院,上海201210 [5]安徽师范大学,安徽芜湖241002

出　　处：《安徽师范大学学报（自然科学版）》2024年第3期217-223,共7页Journal of Anhui Normal University(Natural Science)

基　　金：国家能源集团科技创新项目(GJNY-20-67)。

摘　　要：煤粉给料罐是煤粉输送系统中必不可少的一环。某气化技术工艺的煤粉给料罐采用底部流化、侧面出料的方式,内部装有复杂的内构件与出料管道。本文以气固两相流数学模型为基础,采用CPFD(computational particle fluid dynamics)方法,对给料罐内部流化状态开展流体动力学仿真模拟,分析煤粉给料罐内气固两相流的流动特性,模拟给料罐内煤粉疏松、输送的过程,研究影响该给料罐煤粉输送稳定性的影响因素及其规律。The pulverized coal feeding vessel is an indispensable part of the pulverized coal conveying system.The pulverized coal feeding vessel of a gasification technology process adopts the method of bottom fluidization and side discharge,and the interior is equipped with complex internals and discharge pipes.Based on the mathematical model of gas-solid two-phase flow,this paper uses the CPFD(computational particle fluid dynamics)method to car-ry out fluid dynamics simulation on the fluidization state inside the feeding vessel,analyzes the flow characteristics of gas-solid two-phase flow in the pulverized coal feeding vessel,simulates the process of loose and conveying of pulverized coal in the feeding vessel,and studies the influencing factors and laws affecting the stability of pulver-ized coal conveying in the feeding vessel.

关 键 词：煤粉给料罐 CPFD 气固两相流 柱塞流 

分 类 号：TQ545[化学工程—煤化学工程]