摘要
程控球阀是S Zorb装置的重要仪表设备,通过闭锁料斗程序控制相关球阀的开关,实现待生再生吸附剂的循环。由于使用工况苛刻,装置运行一段时间后程控球阀出现内漏,阀座、阀球磨损现象。根据阀门结构特点,经过与供货商交流对阀门结构设计细节提出了改进建议(调整密封预紧力、缩小阀腔等),同时结合工艺操作调整某些阀门动作时序,增加了某些程控球阀反吹步序和阀门使用情况的在线诊断分析、预知维修功能。使程控球阀的在线运行时间及使用寿命得到很大延长。
SPC ball valve is one of the important instrument equipment in S Zorb unit.Lock hopper management system controls related ball valves to realize the cycle of regeneration of adsorbent.Due to harsh working conditions,the SPC ball valves began to leak and the valve seat and valve ball were worn away after running for some time.According to the structural characteristics of the valve and after communicating with the supplier,some improvements are put forward for the design details of the valve structure（by adjusting seal pre-tightening force and reducing the valve cavity,etc.）.Meanwhile,the valve actuation time is adjusted with the combination of process operation.The blowback action sequence of some valves is increased and online diagnosis and analysis for predictive maintenance is increased as well.Hence,the on-line operation time and service life of the SPC ball valve is greatly prolonged.
出处
《石油化工设备技术》
CAS
2015年第4期61-66,8,共6页
Petrochemical Equipment Technology
