某电厂汽轮机润滑油压低缺陷分析与处理  

Analysis and Treatment of Low Pressure Defect of Turbine Lubricating Oil in a Power Plant

作　　者：王妍飞 WANG Yan-fei(Datang International Power Generation Co.,Ltd.Zhangjiakou Power Generation Branch)

机构地区：[1]大唐国际发电股份有限公司张家口发电分公司,河北张家口075000

出　　处：《电站系统工程》2023年第6期37-38,42,共3页Power System Engineering

摘　　要：机组润滑油系统的主要作用是向汽轮机的各轴承以及盘车装置提供润滑油,并且给氢侧密封油系统提供备用密封油。某电厂机组润滑油多次出现油压低的情况,润油泵开始频繁联动。正常情况下倘若油压低,则交流润滑油泵一直工作,给机组安全运行带来极大隐患。所以停备汽轮机组,处理此缺陷。分析了汽轮机润滑油系统工作原理,找出了射油器喷嘴直径偏小以及出口逆止门卡涩的原因,为相同问题的机组提供理论借鉴。The task of the lubricating oil system is to reliably supply qualified lubricating oil to the turbine bearings and turning gear,to supply backup sealing oil to the hydrogen sealing oil system of the generator.The lubricating oil pressure of a power plant unit has been low for many times,and the lubricating oil pump began to linkage frequently.Due to low lubricating oil pressure,AC lubricating oil pump needs continuous operation during normal operation of the unit,which seriously affects the safe and economic operation of the unit.Finally decided to shut down the steam turbine to deal with the defects of low lubricating oil.The working principle of the turbine lubricating oil system was analyzed,and the reasons for the small nozzle diameter of the injector and the tight outlet check door were found,which provided reference for the analysis of similar faults.

关 键 词：汽轮机 润滑油系统 射油器 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]