本文叙述了国外超临界压力机组发展的概况,并对国产的1000吨/时直流锅炉的改进作了探讨。提出了在新蒸汽参数基本不变的情况下,将锅炉的炉膛水冷壁结构作较大的改变后,既能适应煤种的变化,又能作低负荷变压运行。本文可供有关人员作参考。 This paper describes the development of foreign supercritical pressure unit overview, and made the 1000t / h domestic boiler made the improvement discussed. It is put forward that when the new steam parameters are basically the same, the structure of boiler water wall will be greatly changed, which not only can adapt to the change of coal type but also can operate under low load and variable pressure. This article is for reference by the relevant personnel.