600MW机组汽轮机汽封改造及经济性对比

Steam sealing reformation for steam turbine of 600MW unit and comparison of economical efficiency

提高汽轮机三缸效率、降低机组的热耗是电厂控制发电成本的主要任务。论述了湖南华电长沙发电有限公司汽轮机汽封改造的过程,经过计算表明,改造后取得了良好的经济效益。

To raise the efficiency of the three casings of the turbine and reduce the unit heat rate are the main tasks for power generation cost control of power plant.The turbine steam sealing reformation process in Hunan Huadian Changsha Power Genera-tion Corporation Limited was described in this paper.It is demonstrated by calculation that the excellent economical benefit has been obtained after the reformation.