超超临界百万机组高加正常疏水调节阀堵塞的分析及处理

Analysis and treatment about blockage of high pressure normal drain regulating valve of ultra supercritical 1000 MW unit

从机组启动过程、运行控制和汽水品质分析,从理论和试验结果上排除了机组氧化皮脱落是造成高加疏水调节阀堵塞的直接原因,可以为机组的运行和维护起到指导作用。

From the unit starting process, the operational control and the steam water quality analysis, this paper excluded unit oxide skin shedding as the blockage＇ s direct reason of high pressure normal drain regulating valve based on the theory and experimental result, which will be reference for operation and maintenance of unit..