某核电厂上充泵润滑油冷却器风扇不转分析  

Failure analysis of the oil cooler fan of a charging pump of a certain nuclear power plant

作　　者：刘计斌 刘海常 董志国 王岩 LIU Jibin;LIU Haichang;DONG Zhiguo;WANG Yan

机构地区：[1]辽宁红沿河核电有限公司,辽宁大连116001

出　　处：《现代机械》2023年第6期97-99,共3页Modern Machinery

摘　　要：某核电厂2号机组执行柴油机试验,运行人员切换为柴油机带载后,发现2号机的2号上充泵(2RCV002PO)按正常时序自动启动后,润滑油冷却器前后温度计示数持续上涨,现场发现风扇未转动,主控立即停运该泵。随后对可能导致风扇未运行的各个部件进行排查,未发现异常。排查完成后启泵验证,泵运转正常,风扇运转正常。本文通过分析启动力矩和润滑油泄漏量得出风扇未运行的原因,并给出了解决方案:增大液压马达排量或提高溢流阀的密封性。In the diesel engine test of Unit 2 of a certain nuclear power plant,after the second charging pump(2RCV002PO)automatically started,the temperature of the oil cooler rose continuously.The operator found that the fan was not running,and the pump was stopped.The components related to the fan were checked,and there was no abnormality.Then the pump was started again,and the fan operated normally.In this paper,the starting torque and the lubricating oil leakage are analyzed to find out the reason for the failure of the fan,and the solution is proposed:increasing the delivery of the hydraulic motor or improving the leakproofness of the overflow valve.

关 键 词：上充泵 液压马达 溢流阀 不转 

分 类 号：TH17[机械工程—机械制造及自动化]