【摘要】 分析三峡电站700MW水轮发电机组透平油运行过程中油质衰退、劣化的失效位置及失效模式,探讨机组透平油系统的特点和运行初期的润滑劣化行为及失效机制。为解决机组在润滑防护过程中的问题,研发和应用了将油库中的液压调节系统润滑油和轴承润滑油分离的工艺技术、规程等。选择适合该机组油品的可靠性技术、工艺,实践表明油静电过滤技术能很好地降低油品的污染度等级,提升机组润滑可靠性水平。更多还原

【Abstract】 The function of the turbine oil of the 700 MW hydro-generator unit of the China Three Gorges Power Plant and the reasons for the deterioration of the oil quality during the operation process were introduced,the characteristics of the turbine oil system of the unit and the problems in the initial stage of operation were analyzed.In order to solve the problem of the unit in the lubrication process,a strategy for separating the hydraulic oil and the bearing oil in the oil depot was proposed.After comprehensively analyzing various processes,the treatment process suitable for the oil of the unit was selected.The practice shows that the oil electrostatic filtration technology can well reduce the pollution degree of the oil.更多还原