摘要
某电厂4号锅炉发生后屏过热器爆管事故,分析认为主要原因是锅炉紧急停炉后在未能及时排出冷凝水的情况下再次点火,导致屏式过热器发生水塞,受热面局部短时过热引发爆管。对比该炉最近发生的多次水塞爆管事故,制定相应的预防措施,对同类锅炉的水塞爆管问题具有一定参考意义。
Tube burst occurred on rear platen super heater of No.4 boiler in a power plant. The main cause is that it is failed to timely discharge condensate water after an emergency shutdown boiler, and then starts again, which leading to water blocking in super heater unit. Contrasting the water blocking accidents recent years for this boiler, corresponding preventive measures are formulated, which have certain reference value to problems of tube burst caused by water blocking of the same type boiler.
出处
《山东电力技术》
2016年第7期78-80,共3页
Shandong Electric Power
关键词
锅炉
水塞
后屏过热器
boiler
water blocking
rear platen superheater
