火电厂锅炉灭火保护可靠性低的原因分析及改进  

Analysis and Improvment of Low Reliability of Boiler Flame Failure Protection

作　　者：魏向国 倪敏 张明法 张洪涛 高彦强 Wei Xiangguo;Ni Min;Zhang Mingfa;Zhang Hongtao;Gao Yanqiang(Guohua Dingzhou Electric Power Generation Co. Ltd., Dingzhou 073000, China;Jibei Electric Power Company Limited Skill Training Center, Baoding 071003, China;State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China;Hebei Renhua Thermal Power Co.Ltd., Cangzhou 062550, China)

机构地区：[1]河北国华定州发电有限责任公司,河北定州073000 [2]冀北电力有限公司技能培训中心(保定电力职业技术学院),河北保定071003 [3]国网河北省电力公司有限电力科学研究院,石家庄050021 [4]河北任华供热有限责任公司,河北沧州062550

出　　处：《河北电力技术》2018年第1期43-45,共3页Hebei Electric Power

摘　　要：针对火电厂锅炉灭火保护可靠性低的问题,从火焰检测系统的电源设计、火检光纤冷却效果、火检探头超温、灭火保护逻辑设计缺陷等方面分析了锅炉灭火保护可靠性低的原因,并提出了有效的优化改进措施。实践证明,改进后的火检系统运行稳定可靠,灭火保护误动作概率低,确保了机组的安全经济运行。Aiming at low reliability of boiler safeguard supervision in thermal power plant,this paper analyzes the reasons for the low reliability of boiler fire protection,puts forward the effective optimization and improvement measures for the several problems that are easily occured in the long-term operation,practice proves that the improved fire detection system is stable and reliable,the probability of wrong action is very low,ensures the safety and economic operation of the plant.

关 键 词：火焰 检测 灭火保护 可靠性 

分 类 号：TM621[电气工程—电力系统及自动化]