该文介绍引进型300 MW机组锅炉、再热器系统经改进，减少再热蒸汽流量偏差和温度偏差的实炉试验结果。
The paper describes the test results of improvement effects on a licensed 300mw set's boiler and its reheater for the purpose of diminishing reheater's mass flow and temperature deviations.
发生事故的主要原因之一是过热器、再热器进口集箱引入三通处蒸汽在集箱中复杂流动工况下产生涡流，处在涡流区的管屏蒸汽流量减少，使汽温和金属壁温升高。
The main source of these failures are vortices existing, in front of Tee-Junctions of entering headers of superheaters and reheaters, caused by the complex flow conditions in the headers.
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