燃煤机组空气预热器堵塞原因分析及运行调整研究  

Analysis on the Causes of Air Preheater Blockage in Coal-Fired Units and Study on Its Operation Adjustment

作　　者：杨骁 高文杰[1] 龙斌 梁川 王赫 韩钟国 张然 YANG Xiao;GAO Wenjie;LONG Bin;LIANG Chuan;WANG He;HAN Zhongguo;ZHANG Ran(CHN Energy Science and Technology Research Institute Limited Shenyang Branch.,Shenyang 110102,China;School of Environment,Liaoning University,Shenyang 110036,China;Guoneng Jilin New Energy Development Co.,Ltd.,Changchun 130022,China)

机构地区：[1]国家能源集团科学技术研究院有限公司沈阳分公司,辽宁沈阳110102 [2]辽宁大学环境学院,辽宁沈阳110036 [3]国能吉林新能源发展有限公司,吉林长春130022

出　　处：《锅炉技术》2025年第1期72-76,共5页Boiler Technology

基　　金：国家能源集团科学技术研究院有限公司科技项目(SY2022Y02)。

摘　　要：针对某600 MW燃煤机组长时间深度调峰后空气预热器堵塞问题,通过现场试验采集数据分析,确认硫酸氢铵液化后吸附大量飞灰黏附在空气预热器蓄热片上是导致机组空气预热器堵塞的主要因素,并根据机组实际情况开展喷氨优化调整试验,有效缓解该机组空气预热器堵塞的情况。To analyze the cause of air preheater blockage in a 60o MW coal-fired unit after longterm deep peak shaving,data analysis was conducted through on-site experiments to confirm that ABS liquefaction adsorption of a large amount of fly ash adhering to the air preheater heat storage plate was the main factor causing air preheater blockage in the unit.Based on the actual situation of the unit,ammonia injection optimization adjustment experiments were carried out to effectively alleviate the blockage of the air preheater in the unit.

关 键 词：脱硝系统 空气预热器 喷氨优化 SCR ABS 

分 类 号：TK223.3[动力工程及工程热物理—动力机械及工程]