海油建滔液位调节阀(LV020201)故障技术性分析及处理  

Technical Analysis and Treatment of Fault of CNOOC Kingboard Chemical Limited Level Regulator Valve(LV020201)

作　　者：吕朝帅 杨彪[1] 胡瑞平 Lv Chaoshuai;Yang Biao;Hu Ruiping(CNOOC Fudao Limited.,Hainan,Dongfang,572600,China)

机构地区：[1]海洋石油富岛有限公司,海南东方572600

出　　处：《仪器仪表用户》2020年第7期15-17,14,共4页Instrumentation

摘　　要：介绍了中海油建滔公司60万吨/年甲醇生产装置是采用德国LURGI(鲁奇)工艺包,该工艺的合成塔工段的F-02002分离罐的液位调节阀(LV-020201)在运行中,经常性地发生阀杆的高频振荡故障,造成装置工艺液位的波动,多次危及液位的高高或低低的联锁值,给工艺操作带来极大的操作难度和生产风险。调节阀的阀杆高频振动故障一直困扰着60万吨/年甲醇装置的安全稳定运行,通过对调节阀阀杆产生振荡的故障原因进行充分的解剖及深度的技术分析,查找出调节阀发生高频振荡的缘由,解决调节阀振荡对生产装置运行及操作的影响,对存在的问题给出了正确的处理方法,对修复后的运行状况,以及针对这种工况下的调节阀应如何进行正确的选型进行了充分地描述。It introduces that the 600,000 tons/year methanol production unit of CNOOC Kingboard Chemical Limited is based on LURGI process package from Germany.In the process,the level regulator valve(LV-020201)of the F-02002 separation tank in the section of synthesis tower is in operation.The high frequency vibration fault of the valve stem occurs frequently,which causes the fluctuation of the process liquid level of the device and endangers the high or low interlock value of the level for many times.This brings great operational difficulty and production risk to the process operation.The safe and stable operation of the 600,000 tons/year methanol unit has been affected by the high frequency vibration fault of the stem of regulator valve.Through the regulator valve stem vibration fault causes of sufficient anatomy and depth of technical analysis,it finds out the reason of high frequency vibration of the regulator valve and solves the effect of the regulator valve vibration on operation and operation of production unit.More importantly,this paper gives the correct treatment method for the existing problems.The operating condition after repair and how to correctly select the valve under this condition are fully described.

关 键 词：甲醇 调节阀 故障分析与处理 

分 类 号：TH[机械工程]