300 MW亚临界汽轮机通流改造研究  

Retrofit Research for the Flow Passage of a 300 MW Subcritical Steam Turbine Unit

作　　者：徐星 Xu Xing(Guodian Science and Technology Research Institute Co., Ltd., Nanjing 210046, China)

机构地区：[1]国电科学技术研究院有限公司,南京210046

出　　处：《发电设备》2020年第4期279-282,共4页Power Equipment

摘　　要：介绍了国内亚临界机组汽轮机通流改造状况,根据某300 MW亚临界机组汽轮机的性能,从技术方案、性能指标等方面对该汽轮机的全面通流改造和部分通流改造这两种方案进行对比分析,并对实施方案提出建议。结果表明:全面通流改造方案经济指标先进,更能适应未来发展形势;提出的实施方案建议可为今后汽轮机通流改造项目实施提供参考。An introduction is presented to the flow passage retrofit status of domestic subcritical steam turbine units.Based on the performance of a 300 MW subcritical steam turbine unit,the following two retrofit schemes were compared and analyzed from the aspects of technical route and performance index,i.e.the overall flow passage retrofit scheme and the partial flow passage retrofit scheme,for which,corresponding suggestions were proposed.Results show that the overall flow passage retrofit scheme is more economical,which is more adaptable to future developments.This may serve as a reference for the implementation of flow passage retrofit schemes for subcritical steam turbine units.

关 键 词：亚临界机组 汽轮机 通流改造 热耗率 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]