华电技术 ›› 2009, Vol. 31 ›› Issue (12): 8-11.

• 专题综述 • 上一篇    下一篇

选择性催化还原法烟气脱硝装置流动及阻力特性的研究

吕同波1,李林2,王淑荣1,王志强2   

  1. 1.中国华电工程(集团)有限公司,北京 100035;2.山东大学能源与动力工程学院,山东 济南 250061
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-12-25 发布日期:2009-12-25

Study on flow and resistance characteristics of denitration installation using selective catalytic reduction method

LüTongbo1, LI Lin2,WANG Shurong1, WANG Zhiqiang2   

  1. 1.China Huadian Engineering Corporation Limited, Beijing 100035, China; 2.Energy and Power Engineering School of Shandong University, Jinan 250061, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-12-25 Published:2009-12-25

摘要: 利用CFD软件Fluent对300MW机组的选择性催化还原法烟气脱硝装置流动特性进行了数值模拟研究,分析了导流装置、喷氨格栅和反应器折烟角等对系统阻力特性的影响。研究结果表明,导流和整流装置可极大地改善装置内的流动特性,导流板可起到流动优化和降低阻力的作用。在喷氨格栅中,防磨板对反应器系统阻力的影响较小,合适的折烟角变动可以降低阻力损失。

关键词: 选择性催化还原法, 流动特性, 阻力特性, 导流板, 数值模拟

Abstract: The flow in SCR method denitration installation of a 300MW unit was simulated numerically by using of CFD software Fluent, and the influence of the guiding devices, the ammonia injection grid and the flue gas deflection angle of reactor on the system resistance characteristics was analyzed. The research result shows that the guiding devices and rectifier devices can greatly improve the flow in the installation, and the guiding plates can optimize the flow and reduce the resistance. In the ammonia injection grid, the influence of the wear plate on reactor system resistance is smaller, and proper change of the flue gas deflection angle can reduce the resistance loss.

Key words: selective catalytic reduction (SCR) method, flow characteristics, resistance characteristics, guiding plate, numerical simulation