1000 MW电站锅炉环形风箱积灰防治技术研究  

Research on the Prevention and Control of Ash Deposit in the Annular Air Box of 1000 MW Power Plant Boilers

作　　者：裘立春 胡卿 张海丹 李彦猛 张光学[5] Qiu Lichun;Hu Qing;Zhang Haidan;Li Yanmeng;Zhang Guangxue(Research and Development Institute, Zhejiang Energy Group, Hangzhou 311121, China;Zhejiang Provincial Key Laboratory of Energy Conservation & Pollutant Control Technology forThermal Power, Hangzhou 311121, China;Zhejiang Zheneng Fuxing Fuel Co., Ltd.,Hangzhou 310052, China;Zhejiang Zheneng Zhongmei Zhoushan Coal & PowerCo., Ltd., Zhoushan 316131, Zhejiang Province, China;Institute of Energy Engineering,China Jiliang University, Hangzhou 310018, China)

机构地区：[1]浙江浙能技术研究院有限公司,杭州311121 [2]浙江省火力发电高效节能与污染物控制技术研究重点实验室,杭州311121 [3]浙江浙能富兴燃料有限公司,杭州310052 [4]浙江浙能中煤舟山煤电有限责任公司,浙江舟山316131 [5]中国计量大学能源工程研究所,杭州310018

出　　处：《发电设备》2021年第5期325-328,共4页Power Equipment

摘　　要：针对1000 MW超超临界对冲燃烧锅炉,提出了一种防止环形风箱积灰的方法。利用热一次风为气源,在二次风环形风箱上横向贯穿设置吹扫风管,在吹扫风管上以一定间隔开吹扫孔;结合吹扫风的流场数值模拟理论计算,在不影响燃烧、厂用电的前提下,实现了环形风箱内积灰的热态在线持续清扫,有效地解决了环形风箱积灰的问题,既节约了人工清灰成本,又提高了机组运行的安全性。A solution to preventing the ash deposit in annular air boxes was proposed for the 1000 MW ultra-supercritical wall opposed firing boilers.The purging air pipe was set horizontally through the secondary air box with the hot primary air used as the gas source and the holes opened at certain intervals.Combined with the flow field theoretical calculation of the purging air,the hot state on-line continuous cleaning of the ash deposit in the annular air box was achieved,which effectively solved the ash deposit problem and unchanged the combustion and plant electricity.The research can save the manual cleaning cost and improve the unit operation safety.

关 键 词：电站锅炉 环形风箱 热一次风 积灰 改造 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]