超临界及超超临界压力汽轮发电机组单双轴布置的比较

Comparison analysis of single shaft and double shaft layout of supercritical and ultra-supercritical pressure steam turbine-generator unit

与超临界及超超临界压力汽轮发电机组容量的大型化密切相关的是单轴与双轴的布置型式。综合分析比较汽轮发电机组单双轴布置在业绩、结构、技术难度及发展趋势等方面各自的特点。对不同容量范围的超临界及超超临界压力汽轮发电机组推荐了单轴布置或双轴布置方案。

Single shaft or double shaft layout is closely related to the size scaling-up of supercritical and ultra-supercritical pressure steamturbine-generator unit. This paper comprehensively analyzes and compares the features of single shaft and double shaft layouts in the aspectsof performance, configuration, technical diffculty and development tendency etc., and recommends the single shaft or double shaft layoutscheme in light of the different capacity scope of supercritical and ultra-supercritical pressure steam turbine-generator unit.