To further improve the support capability of grid equipment operation and maintenance management,the intelligent operation and maintenance platform for valve cooled equipment is constructed,and the condition monitoring and fault diagnosis technology of valve cooled main pump is studied.The accurate acquisition technology of equipment condition signal is introduced.The measurement points that can reflect the vibration characteristics of the main pump are given.The selection of vibration sensors is elaborated.By analyzing the acquired vibration signals in both time and frequency domains,the mechanism of vibration exceeding the standard and the causes of vibration exceeding the standard during the operation of the main pump are derived.The damage caused by the vibration process to various components in the pump system is evaluated,and then targeted measures are taken to reduce the vibration during the operation of the main pump,and suggestions are provided for the maintenance and repair of the valve cooled main pump.The performance evaluation method of the valve cooled main pump during the start-stop process is studied,and an effective data acquisition and processing method under transient conditions is proposed.This study realizes the intelligent monitoring,warning and fault diagnosis of valve cooled equipment state,which is of great significance for improving the lean management level of grid and promoting the progress of smart grid technology.
关键词
阀冷系统/主泵/状态监测/故障诊断/振动/智能运维
Key words
Valve cooled system/Main pump/Condition monitoring/Fault diagnosis/Vibration/Intelligent operation and mainterance
维普
万方数据