世界上最大汽轮机(1400MW),在超临界压力下多年运行经验将予以介绍。提高蒸汽压力仅影响汽轮机高压部分的设计。亚临界机组中已采用的合适设计概念,例如:用红套环式内缸,对超临界也是没有问题的,并且仍可用同样材料。只是为了适应较小的蒸汽容积,叶片流道尺寸要作相应修改。 The world’s largest turbine (1400 MW), years of operating experience under supercritical pressure will be introduced. Increasing the steam pressure only affects the design of the high-pressure part of the steam turbine. Suitable design concepts that have been adopted in subcritical units, such as the use of a red-lined inner cylinder, are also not problematic for supercritical units and the same materials can still be used. Just to adapt to the smaller steam volume, the blade flow path size should be modified accordingly.