认为炉内火焰冲刷水冷壁及对流过热器烟温分布不均是造成爆管的主要原因。
It is found that the main cause of tubes bursting is the flame in the burner washing down watercooled wall and the uneven distributed flue-temperature over the convection superheater.
此外，这两种设备还经常出现离焰和火焰滞后现象，设备会承受严重的火焰冲刷冲击。
Additionally, these systems often create unstable and elongated flames, which can lead to severe flame impingement in process tubes.
二次风旋流强度的变化对炉内燃烧影响较大，旋流数过小时（S<0.8），火焰将冲刷后墙；
The swirl number of secondary air has a great influence on the combustion. When swirl number is small(S<0.8), the fire is long, and may rush the back wall.
它具有火焰不直接冲刷加热工件、升温速度快、加热温度均匀、节约燃料、结构新颖等特点。
It possesses the characteristics of fast speed heating up, homogeneous heating, fuel conservation and novel structure.
它具有火焰不直接冲刷加热工件、升温速度快、加热温度均匀、节约燃料、结构新颖等特点。
It possesses the characteristics of fast speed heating up, homogeneous heating, fuel conservation and novel structure.
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