针对目前大型煤粉锅炉屏式过热器管壁温度计算不准确的问题，提出了屏式过热器三维管壁温度计算方法。
At present, the method for calculating the tube wall temperature in a furnace chamber is not exact.
根据温度计算结果，获得管道的剩余强度因子，进而判定管壁是否烧穿。
The remaining intensity factors of the pipe are obtained to judge if the wellbore is burn through according to the result of calculation.
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