主泵电机润滑油损失异常的分析和处理

主泵是核电站的心脏,是反应堆冷却剂系统的主要设备和压力边界之一,承担着确保堆芯传热所需的冷却剂流量的重要功能,运行期间必须保证主泵运行的安全可靠。在第11个燃料循环周期中,主泵A电机出现了润滑油损失异常的状况。为了保证电机正常运行,在功率运行期间进行了5次补油的应急处理。针对这个问题,对主泵电机润滑油损失异常的原因和油气散失通道作出了具体分析,在换料检修过程中对主泵电机进行了解体工作。对解决润滑油损失异常的具体解决方案做出了论述。通过具体检修方案的实施,最终使润滑油异常损失得到了很好的控制。

Analysis and treatment for abnormal loss of RCP motor lubrication

RCP,as the ‘heart’ of a nuclear power plant,is one of the vital equipments of RCP Coolant System,ensuring the regular coolant flow for core heat transmission.In this case,it is a must to ensure the safety and reliability of RCP operation.During the 11th cycle of QNPC,the lubrication of RCP-A motor lost abnormally.To ensure normal operation of the motor,we performed 5 emergency lubrication-feeding.Against this problem,we analyzed the cause of abnormal lubrication loss of RCP motor and the transfer pathway for oil-gas,and according to the analysis we performed RCP motor disassembly maintenance during refueling overhaul.The paper discusses the specific treatment for the abnormal lubrication loss.It was testified useful to control the abnormal lubrication loss by the specific treatment.