某电站末级过热器、末级再热器穿顶棚密封结构开裂受力分析及防治

Force Analysis of Sealed Structure at Ceiling for Final Superheater & Reheater after Cracking and its Prevention

针对某电厂1号炉末级过热器、末级再热器穿顶棚密封部位开裂问题进行了现场检验,对顶棚密封处结构进行了各种工况下的受力分析和计算,指出了造成该问题的主要原因,并提出了防治措施。

Aiming at the cracking on sealed part at ceiling for final superheater and final reheater of No.1 boiler, field inspection is carried out. The force on sealed structure at ceiling under various operating conditions is analyzed and calculated; the main causes which lead to the phenomenon are pointed out and some prevention measures are proposed.