模拟计算结果表明，提高空气预热温度，炉内温度的峰值相应增大，温度梯度降低，温度分布更均匀，火焰更长。
The simulation results show that when preheated air temperature increases the maximum temperature gets larger, the temperature gradient becomes lower and the flame length longer.
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.
在切向燃烧系统中，通过改变燃烧器喷口的角度可以调节炉内火焰中心位置，可达到调节再热汽温的目的。
In tangential combustion system, the reheat steam temperature can be adjusted by changing burner nozzle Angle to just the flame position.
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