CCPP辅助设备检修后调试过程中出现异常与分析处理

Analysis and Treatment of Anomaly of CCPP Auxiliary Equipment in Debugging Process After Overhaul

介绍了CCPP辅助设备在检修后调试过程中出现的异常,包括W-EP电源组投上后电压低,闭式水板式换热器窜液、外漏,CCPP机组起动过程中真空度降低,凝结水泵不打水,机组并网后化验指标超标等异常。通过对异常情况逐一分析处理,可使检修后的CCPP机组辅助设备安全稳定运行,避免同类机组再出现类似异常。

This paper introduces the abnormality of CCPP auxiliary equipment in the debugging process after overhaul,including the low voltage after putting W-EP power supply unit into operation,liquid leakage of closed water plate heat exchanger,low vacuum during starting of CCPP unit,no water pumping from condensate pump,and exceeding the standards of test index after unit connection.By analyzing and dealing with the anomalies one by one,the safe and stable operation of the auxiliary equipment of CCPP unit after overhaul is ensured,and the similar anomalies in similar units are avoided.