Eп──670/140型锅炉高温过热器频繁爆破问题的试验研究

The Experimental Research on the Problem of Frequent Bursting of Eп-670/140 Boilers High-temperature Superheater

神头一电厂苏制Eп－670／140型锅炉，高温过热器管排及导汽管出现超温频繁爆破，经反复试验研究，发现了导致爆管的根本原因，经采取相应改进措施，取得良好效果。本文通过大量的试验数据和试验曲线，分析得出了结论。

The hilgh-temperature superheater pipelines and conduit pipes of the Soviet-made En -670/140 Boiler frequenty bursted because of superhigh temperature. By the way of repeatedly experiments and research, the fundamental causes are found, the relevant measures are taken,and the problem is solved satisfacf orily.