广东电力2017，Vol.30Issue(5)：21-24,62,5.DOI:10.3969/gddl/gddl2017/1705/170505.htm
超超临界锅炉运行诊断及NOx减排调整试验
Operation Diagnosis on Ultra-supercritical Boiler and Adjustment Experiment on NOx Emission Reduction
陈昱萌1
作者信息
- 1. 深圳市广前电力有限公司,广东 深圳518054
- 折叠
摘要
Abstract
Taking 660 MW ultra-supercritical boiler in one power plant as a research object, this paper analyzes influence of boiler variable operation on flue gas loss, unburnt carbon loss, boiler efficiency and NOx emission. Experimental results indicate that heat efficiency of the boiler is lower than designed heat efficiency under the condition of variable load operation and even more lower under low load operation. Therefore, it is required to change operational parameters such as pulverized coal fineness, primary air velocity and so on according to load change in actual operating process. Opening of ammonia injection grid is the major factor affecting NOx emission and ammonia escape, thus it is ought to set different opening of ammonia injection under high and low load in actual operation so as to ensure stable and high efficient operation of the unit.关键词
600MW超超临界/锅炉效率/喷氨格栅/氧量/NOx排放量/氨逃逸Key words
600 MW ultra-supercritical/boiler efficiency/ammonia injection grid/oxygen content/NOx emission/ammonia escape分类
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陈昱萌..超超临界锅炉运行诊断及NOx减排调整试验[J].广东电力,2017,30(5):21-24,62,5.
