DEH阀门管理逻辑的完善

Perfect of DEH Valve Manage Logic

焦作电厂从1999年10月开始先后对6台220MW火电机组进行了DEH改造,针对改造后出现的再热器超压这一异常现象,从阀门管理的角度分析了原因,提出了较好的解决办法。

From Oct. 1999, DEH of six 220MW thermal power generation units of JiaoZuo Power Plant are successively reconstructed. We analyzed the reason for the abnormity of the reheater going beyond stress after reconstruction and found better solution from point of view of valve management. In this paper, we briefly introduce the accident reason and the solution in order to intercommunicate and get improvements.