HG-420/13.7-YM3型锅炉热风改乏气送粉方式探讨  

Discussion on the mode transformation from hot-air to exhaust-deliver-powder of HG-420/13.7-YM3 boiler

作　　者：鞠胤红 曾祥昊 王梦纯 

机构地区：[1]黑龙江省电力科学研究院,哈尔滨150030 [2]大唐国际发电股份有限公司北京高井热电厂,北京100041

出　　处：《黑龙江科学》2017年第4期118-119,共2页Heilongjiang Science

摘　　要：针对大唐鸡西热电有限责任公司HG-420/13.7-YM3型锅炉低氮燃烧和脱硝改造后,运行中出现三次风率过大,导致NOx排放偏高及大渣含碳量高等问题,对现有的热风送粉系统引入乏气送粉方式进行可行性研究,通过理论计算,提出由制粉系统再循环进行乏风分流降低三次风率改造方案,以提高锅炉运行的经济性,满足锅炉低NOx排放要求。After the low nitrogen combustion and denitrification transformation of HG-420/13.7-YM3 boiler in Datang Jixi Thermal Power Co.,Ltd.,tertiary wind rate is too high during the operation,which leads to the high NOx emission and the high carbon content of slag. The feasibility study of the existing hot air delivery system is introduced. Through the theoretical calculation,it is proposed to reduce tertiary wind rate by the milling system to improve the economy of the boiler operation and meet the requirements on low NOx emission of boilers.

关 键 词：低氮燃烧 三次风率 乏气送粉 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]