超超临界660MW机组低负荷运行炉膛爆燃原因分析  

Analysis on Furnace Explosion of 660 MW Ultra-supercritical Unit under Low Load

作　　者：江波 熊钟 

机构地区：[1]中电投江西电力有限公司景德镇发电厂,江西景德镇333000

出　　处：《陕西电力》2016年第6期85-88,共4页Shanxi Electric Power

摘　　要：炉膛正压越线对火电厂会造成巨大的损失,尤其是超超临界大型机组。以某超超临界机组为例,深入分析低负荷运行时由于炉内存在泄漏、磨煤机断煤、油枪无法及时投入等多种原因叠加造成炉膛燃烧不稳的原因,并针对超超临界大型机组低负荷运行炉膛燃烧不稳提出了合理制定磨组运行方式、完善配煤掺烧、改进燃油系统逻辑等防范措施。为防止同类机组出现炉膛正压越线提供了参考。High furnace pressure will cause huge losses to thermal power plant,especially to the ultra-supercritical unit.Taking certain ultra-supercritical unit as an example,the reasons resulted in unstable burning are analyzed under low load condition.The reasons are as following：furnace leakage,stop of coal supply,no timely operation of oil gun etc..In the light of unstable combustion of ultra-supercritical unit under low load condition,prevention measures,such as reasonable mill operation mode,perfect coal blending and improved logic of oil combustion system,are put forward for the prevention of furnace high pressure in similar unit.

关 键 词：超超临界 660 MW机组 低负荷运行 炉膛爆燃 

分 类 号：TM611[电气工程—电力系统及自动化] TK222[动力工程及工程热物理—动力机械及工程]