摘要
某核电厂的设备冷却水泵轴承温度长期偏高,夏季可达80多摄氏度,多次导致设备不可用。通过泵轴实际尺寸重新计算转子受力,并对轴承进行受力分析和最小载荷计算,最后找到轴承发热量大的根本原因是轴承选型过于保守,导致轴承受力不满足其最小载荷要求。对轴承进行重新选型,试用后轴承和润滑油温度下降10~15℃。
The temperature of the axle bearing of the cooling pump of equipment in a nuclear power plant is high for a long time,and the high temperature in summer can reach more than 80 degrees,which repeatedly induces equipment failure.This article recalculates the force of the rotor through the actual size of the pump axis,and performs a stretch analysis and minimum load calculation on the axle bearing.Finally,the root cause of the high heating of the axle is that the manufacturer's selection of the axle is too conservative,resulting in the axle bearing capacity not meeting its minimum load requirements.The type of bearing is re-selected,which achieves a temperature reduction of 10~15℃with respect to the bearing and lubricants trial operation.
作者
刘德军
潘翔
李开盈
邵家泉
张精干
王琳琳
LIU Dejun;PAN Xiang;LI Kaiying;SHAO Jiaquan;ZHANG Jinggan;WANG Linlin(CNNP Nuclear Power Operations Management Co.,Ltd.,Jiaxing 314300,China)
出处
《电工技术》
2023年第20期27-29,共3页
Electric Engineering
关键词
核电厂
设备冷却水泵
轴承
温度
载荷
抗震计算
nuclear power plant
equipment cooling pump
bearing
temperature
load
earthquake-resistant calculation
