华电技术 ›› 2019, Vol. 41 ›› Issue (10): 12-15.

• 专题综述 • 上一篇    下一篇

燃煤电站SCR脱硝系统运行优化

  

  1. 中国华电科工集团有限公司,北京〓100070

  • 出版日期:2019-10-25 发布日期:2019-11-19

Operation optimization an SCR denitration system in a coalfired power plant

  1. China Huadian Engineering Corporation Limited,Beijing 100070, China

  • Online:2019-10-25 Published:2019-11-19

摘要:

为降低SCR脱硝系统的运行成本,保证该系统高效、安全、稳定运行,需要对SCR脱硝系统进行优化。通过分析系统存在的问题,提出了入口烟气流场优化、喷氨优化管理、催化剂性能控制管理和建立预警系统等优化措施,达到改善入口氨氮摩尔比分布的均匀性、延长催化剂使用寿命以及预防空气预热器堵塞的目的。

关键词:

font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">SCR脱硝系统, 运行优化, 催化剂, 烟气流场, 喷氨, 空气预热器, 氨氮摩尔比

Abstract:

In order to reduce the operation cost of SCR denitration system and ensure its efficient, safe and stable operation, it is necessary to optimize the SCR denitration system. Based on the analysis on the existing problems of the system, optimization methods including optimizing flue gas field at the entrance of the system, improving ammonia injection, control the management of catalyst performance and establishing a warning system were proposed to improve the uniformity of ammonianitrogen molar ratio at the entrance, prolong the service life of catalyst and prevent the blockage of air preheaters.

Key words:

font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">SCR denitration system, operation optimization, catalyst, flue gas field, ammonia injection, air preheater, ammoniafont-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">nitrogen molar ratiofont-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">