摘要
神华内蒙古国华准格尔发电公司(以下简称"国华准电")#1机组实施DEH控制系统国产化改造项目。改造后首次并网进行切缸时,机组发"真空疏水阀过流"而跳闸;经分析认为,高调门的开启顺序存在逻辑偏差,后经热工专业修改保护定值及保护逻辑后,彻底解决了机组的重大隐患,为预防和解决同类型机组DEH国产化改造提供了一定的参考价值。
Guohua Zhundian company#1 unit carries local renovation project of DEH control system. Theunit trips out for Vacuum flow trap to transferring casing in the first synchronization;By analyzing the rea-son,the opening sequence of high pressure steam exists logic difference,and then keep a steady status af-ter thermal energy modification,has solved completely great hidden troubles,and make a reference for localrenovation of the same type of unit.
出处
《神华科技》
2016年第2期46-47,62,共3页
Shenhua Science and Technology
关键词
DEH改造
真空疏水阀
保护逻辑
切缸
高压主汽调门
延时
DEH
Vacuum Trap Overcurrent
Protection Logic
Switching Cylinder
Main Steam PressureRegulating Valve
Delay
