摘要
国内某核电站380V柴油发电机在启动瞬间出现超速报警,通过查找发现调速执行器油门杆活动不自如。在接下来大修中更换解体该执行器,并发现了旧执行器盖板装反,弹簧弹力不足的缺陷,验证了之前的判断,顺利解决该问题。我们主要针对该故障的原因,对分析、处理过程进行了介绍。
An overspeed fault was occurred when the emergency diesel engine started in LLS system of some Chinese nuclear power plant. Fuel rack of speed actuator couldn＇t move smoothly by some survey. This actuator was disassembled in the next outage, and it is found that the cover plate of actuator was fixed in the opposite direction, elastic force of spring also reduced. All these above verified initial analysis and the issue has been solved successfully. This article mainly introduces the cause analysis and solving process for this fault.
作者
荆哲
祝彦飞
JING Zhe ZHU Yanfei(Dayabay Nuclear Power Operations and Management Co., Ltd., Shenzhen 518124)
出处
《内燃机》
2017年第4期46-48,共3页
Internal Combustion Engines
关键词
柴油机
执行器
超速
diesel engine
actuator
, overspeed
