延迟焦化富气压缩机组开机过程中停机原因分析与处理  

CAUSE ANALYSIS ON THE TRIP-OUT OF RICH GAS COMPRESSOR SET IN DELAYED COKING UNIT DURING STARTUP AND THE TREATMENT

作　　者：董飚[1] Dong Biao

机构地区：[1]中国石化上海石油化工股份有限公司

出　　处：《石油化工设备技术》2019年第5期43-47,共5页Petrochemical Equipment Technology

摘　　要：文章针对延迟焦化装置富气压缩机汽轮机检修后,在单机试车、机组联动试车良好的情况下,机组投产过程中,达到一定负荷就发生跳闸停机的现象进行了总结分析。分析结果显示,最终的原因是:单侧拉杆螺栓背帽松动,前轴承座膨胀不均匀,危急保安装置的拉钩与危急遮断器飞锤头部发生径向撞击,引起速关油路泄压,速关阀关闭,造成汽轮机停机。通过采取有效措施,消除了机组突然停机的故障,保证了机组的安稳运行。This paper summarizes and analyzes the trip-out of rich gas compressor turbine in delayed coking unit when it reaches a certain load in the production process under the condition of good single-unit test run and unit linkage test run after maintenance.The results indicate that the final reason is that the back cap of the one-sided stay bolt is loose and the front bearing seat expands unevenly;then the pull hook of the emergency safety device makes radial contact with the head of the flying hammer of the emergency governor.These lead to quick shut-off oil and pressure relief and closing of the quick closing valve,which results in the trip-out of the steam turbine.By taking effective measures,the sudden trip-out of the unit is eliminated and this ensures the safe and stable operation of the unit.

关 键 词：汽轮机 拉杆螺栓 危急保安装置 危急遮断器 

分 类 号：TE964[石油与天然气工程—石油机械设备]