移动颗粒层除尘系统动力特性研究  

RESEARCH ON DYNAMIC CHARACTERISTIC OF MOVING GRANULAR BED FILTRATION SYSTEM

作　　者：郜时旺[1] 危师让[2] 邓润亚[3] 许世森[2] 夏军仓[2] 任永强[2] 

机构地区：[1]西安交通大学,陕西西安710049 [2]国电热工研究院,陕西西安710032 [3]烟台发电厂,山东烟台264002

出　　处：《中国电机工程学报》2002年第5期125-129,共5页Proceedings of the CSEE

基　　金："九五"国家重点科技攻关计划项目(97-A26-03-01);国家重点基础研究发展规划项目(G1999022104)。

摘　　要：热工研究院所开发的移动颗粒层过滤除尘系统,在高温、高压下能够实现颗粒层过滤和气力循环清灰的一体化稳定运行。过滤气体和输送气体之间的压力平衡和气流速度选择是影响系统稳定运行的关键因素。该文应用流态化理论和气力输送理论分析了过滤气体和输送气体的操作速度。计算表明,温度和压力对过滤速度的选择有较大影响。文中对压力平衡的分析与试验结果相吻合。A moving granular bed filter with devices for circulation and regeneration of the filter material developed by Thermal Power Research Institute of State Power Corporation has been tested. The results show that moving granular bed filtration and granular medium regeneration can be carried out steadily together in high-temperature high-pressure gas condi-tion. The pressure balance between dirty gas and granular medium transport gas is a key factor in filtration. The velocities of dirty gas and transport gas are discussed with fluidization theory and pneumatic conveying theory in this paper. The results show that the temperature and pressure of dirty gas have great influences on the selection of filtration velocity. In this paper the analysis of the pressure balance coincides with the experimental results.

关 键 词：移动颗粒层 除尘系统 动力特性 研究 

分 类 号：TK284.5[动力工程及工程热物理—动力机械及工程]