700 MW四角切圆燃烧锅炉降低水冷壁高温腐蚀配风改造应用研究  

Technical Transformation and Experimental Research of a Non-Symmetrical High-Speed Closing-to-Wall Air System on 700 MW Four Angle Tangential Combustion Boilers to Prevent High Temperature Corrosion

作　　者：齐全友 孙军[2] 李文成 蒙毅[2] 杜智华[2] QI Quanyou;SUN Jun;LI Wencheng;MENG Yi;DU Zhihua(Inner Mongolia Guohua Hulunbuir Power Generation Co., Ltd., Hunlunbuir 021025, China;Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China;Fengcheng Phase Ⅱ Power Plant of Jiangxi Ganneng Corp., Fengcheng 331100, China)

机构地区：[1]内蒙古国华呼伦贝尔发电有限公司,内蒙古呼伦贝尔021025 [2]西安热工研究院有限公司,陕西西安710054 [3]江西赣能股份有限公司丰城二期发电厂,江西丰城331100

出　　处：《锅炉技术》2021年第2期38-43,共6页Boiler Technology

摘　　要：为防治四角切圆燃煤锅炉炉膛水冷壁高温腐蚀,在某电厂2台700 MW机组锅炉上进行了燃烧配风优化改造,并进行了燃烧调整试验。结果表明:燃烧配风优化改造后,锅炉水冷壁贴壁气氛显著改善,炉膛水冷壁高温腐蚀得到有效防治,锅炉运行安全性和经济性显著提高,为四角切圆燃烧电站锅炉防治水冷壁高温腐蚀提供了积极的示范作用。To prevent high temperature corrosion of boiler furnace water walls on 700 MW four angle tangential combustion boilers,a non-symmetrical high speed closing-to-wall air system and burners imaginary circle diameter adjustment was designed and applied.Corresponding combustion adjusting tests were carried out.After the technical transformation and the combustion adjusting tests,the atmosphere close to wall turns well obviously.The boiler operating security and economy improves.The non-symmetrical high speed closing-to-wall air system acts as a positive role model for the prevention of boiler furnace water walls high temperature corrosion on the four angle tangential combustion boilers.

关 键 词：四角切圆燃烧锅炉 高温腐蚀 配风优化改造 非对称高速贴壁风系统 燃烧器假想切圆 

分 类 号：TK223.31[动力工程及工程热物理—动力机械及工程]