F级单轴燃气-蒸汽联合循环发电机组的蒸汽冲管方法

Steam Flushing Ways for Tubes of F Class Single-Shaft Gas-Steam Combined Cycle Units

比较了我国目前单轴联合循环蒸汽冲管的3种方法;着重介绍了F级燃气-蒸汽联合循环机组在燃气轮机空载不并网的情况下对机组受热面及管路进行蒸汽吹扫工作,根据实际情况制定了合理的冲管方案,确保了方案的顺利实施,并缩短了工期。

Three steam flushing ways for tubes of present domestic single-shaft combined cycle units were compared, with focus on specific steam flushing performance for heat surface tubes of F class gas-steam combined cycle units under no-load no grid-connected conditions. By analyzing the actual requirements, a reasonable flushing scheme is finally worked out and applied, with which the construction period is successfully shortened.