摘要
针对阳江核电站二号机组循环水泵电机导轴承烧瓦的问题,从设备制造质量、安装精度、运行环境及人员操作等方面对事件原因进行了研究。应用故障树分析方法,画出了该事件故障树并对一系列基本事件的后果进行简要分析;从定性角度求解故障树的结构重要度,找出引起故障的重要环节,并结合实际调查结果得出该事件发生的主要原因是恶化的工作环境未得到有效检测与监视。以此分析为指导,重点对故障环节进行处理,最终顺利解决该烧瓦事件并从中总结经验来从事预防工作。分析与处理结果表明,基于故障树的原因分析正确,处理措施具有针对性,适用于解决此类事件。
Aiming at the circulating water pump motor＇s guide bearing bush-burning incident of Yangjiang Nuclear Power Station Unit 2, study on the cause of the incident was carried out from the perspective of equipment manufacturing quality, installation accuracy, working condition and personal operation. Based on fault tree analysis method, a fault tree of the incident was drawn and a series of basic events could be established and analyzed. By calculating the structure important degree from a qualitative perspective, the major events leading to the incident were found out. Combining with the investigation result, the cause of the incident was clear： no effective detection or monitoring was done to the bad working condition. Afterwards, this analysis was used as a guide for subsequent solution, and the major events were han- dled emphatically. At last, the incident was successfully resolved. On the other hand, there was some experience for the prevention of inci- dent like this. The results of analysis and resolving indicate that fault tree is appropriate for this kind of incidents because of its correct analy- sis and emphatic measures.
出处
《机电工程》
CAS
2015年第9期1246-1249,1262,共5页
Journal of Mechanical & Electrical Engineering
关键词
循环水泵
电机
烧瓦
故障树
circulating water pump
motor
bush-burning
fault tree
