联合循环汽轮机DCS直流油泵保护缺陷处理方案  

Defect Treatment Scheme for DC Oil Pump Protection of Combined Cycle Steam Turbine

作　　者：刘建国 LIU Jian-guo(China Petroleum Electric Power Gas&Electric Co.Ltd.,Daqing 163155 China)

机构地区：[1]中油电能气电公司,黑龙江大庆163155

出　　处：《自动化技术与应用》2022年第4期28-30,共3页Techniques of Automation and Applications

摘　　要：针对印度尼西亚某电厂联合循环机组汽轮机DCS直流事故油泵低油压保护逻辑存在的问题,提出了有针对性的解决方法,并在机组停运期间对设备系统进行改造,新增硬接线联锁启动功能,经过试验及试运行达到了预期效果,确保汽轮机直流事故油泵能够可靠启动,降低汽轮机断油烧轴瓦的风险。Aiming at the problems existing in the low oil pressure protection logic of DC emergency oil pump of steam turbine in a combined cycle unit of a power plant in Indonesia, the corresponding solutions are put forward. During the shutdown period of the unit, the equipment system is reformed and the hardwired interlocking start function is added. After the test and trial operation,the expected effect is achieved to ensure the reliable start of DC emergency oil pump of steam turbine, Reduce the risk of oil cutoff and Bush burning of steam turbine.

关 键 词：直流事故油泵 低油压保护 硬接线联锁 烧轴瓦 

分 类 号：TP206.3[自动化与计算机技术—检测技术与自动化装置]