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国产的３００ＭＷ亚临界锅炉的结构与美国ＣＥ公司和日本三菱重工的３００ＭＷ锅炉相比，增加了后屏再热器出口集箱和末级再热器入口集箱，这在８０年代是适合我国国情的。但是随着电厂运行经验的积累和机组自动化投入率的提高，国产结构的做法不但增加了设备造价，而且增加了再热器阻力，增大了再热蒸汽的流动偏差，因而提出取消这两根集箱的建议。
The structure of the domestic 300MW subcritical boiler is compared with the 300MW boiler manufactured by CE Company and Japan’s Mitsubishi Heavy Industries of the United States with the addition of a rear screen reheater outlet header and a final reheater inlet header box, which was suitable for China’s national conditions in the 1980s of. However, with the accumulation of operation experience of power plants and the increase of automatic input rate of units, the domestic structure approach not only increases the equipment cost but also increases the reheater resistance and increases the flow deviation of the reheat steam. Therefore, it is proposed to cancel these two Suggestion of the header