600MW超临界褐煤锅炉结焦原因分析及措施  

Measures and Cause Analysis on the Slagging of 600 MW Supercritical Boiler of Brown Coal

作　　者：马景斌 高明 宋大勇[3] 

机构地区：[1]齐齐哈尔轨道交通装备有限责任公司,黑龙江齐齐哈尔161002 [2]东北电力第三工程公司,辽宁锦州121001 [3]辽宁省电力有限公司电力科学研究院,辽宁沈阳110006

出　　处：《东北电力技术》2012年第8期46-48,52,共4页Northeast Electric Power Technology

摘　　要：对600 MW超临界褐煤锅炉在试运行期间出现结焦问题的原因进行了分析,得出煤质结焦性强、煤粉偏细、一次风速偏低、燃烧器旋流强度偏大、一次风速偏差大等因素是造成锅炉结焦的主要原因。通过采用提高煤粉细度、提高一次风速、降低燃烧器旋流强度及进行冷热态一次风速调平试验等技术措施,解决了锅炉严重结焦问题,9号机组顺利通过168 h试运行,且投产2年来未出现过结焦现象。The cause of the serious slagging of 600 MW supercritical boiler during commissioning is analysed. It points out that the se- rious slagging is due to the coal property, lower coal fineness, high hydrocyelone strength and large deviation of primary wind speed. The main technical measures are proposes to solve the problems, such as enhancing coal fineness, improving primary wind speed, re- ducing hydrocyclone strength and hot and cold state primary wind speed leveling. After that, No. 9 unit goes smoothly 168 h test oper- ation, since then, the slagging problem never appears.

关 键 词：超临界锅炉 褐煤 结焦 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]