摘要
提高参数和采用二次再热技术是降低发电煤耗和节能减排的有效手段。目前国内已有多台高参数二次再热机组投运,总结这些机组的技术研发、运行经验,对我国燃煤机组进一步提升参数、开发更高效的二次再热机组有重要意义。本文介绍了国内外二次再热技术的发展历程,重点分析了国内已投运的华能安源发电有限责任公司、国电泰州发电有限公司、华能莱芜发电有限公司等二次再热机组汽轮机运行情况及存在的问题,结合当前清洁燃煤机组技术发展展望了我国超超临界二次再热机组汽轮机技术发展方向和关键技术,指出未来二次再热机组汽轮机技术必然向更高参数、更低背压、更灵活运行、全国产化方向发展。
Upgnading the unit parameters and applying double-reheat technology are effective measures to reduce the gross coal consumption rate and realize energy conservation and emission reduction. Up to now, several double- reheat units with high parameters have been put into operation in China. Summing up the technical development and operation experiences of these units is of great significance to further upgrading the parameters of the coal-fired units and developing more efficient double-reheat units. This paper introduces the development of double-reheat technology at home and abroad, it focuses on the operation situation and existing problems of the double reheat units in Huaneng Anyuan Power Plant, Guodian Taizhou Power Plant and Huaneng Laiwu Power Plant. Combing with present technology development for clean coal-fired power units, the development direction and key technologies of China＇s ultra supercritical double-reheat turbine units were discussed. It points out that, in the future, the double-reheat turbine technology will definitely develop towards the direction of higher parameters, lower back pressure, more flexible operation and fully national production.
作者
王建录
张晓东
侯明军
WANG Jianlu ZHANG Xiaodong HOU Mingjun(Dongfang Turbine Co., Ltd., Deyang 618000, China)
出处
《热力发电》
CAS
北大核心
2017年第8期11-15,共5页
Thermal Power Generation
基金
国家科技支撑计划项目(2015BAA03B01)
国家能源应用技术研究及工程示范项目(NY20110104A)~~
关键词
超超临界
二次再热
汽轮机
高参数
超低背压
高温材料
节能减排
ultra supercritical, double-reheat, steam turbine, high parameter, ultra low back pressure, high temperature material, energy saving and emission reduction
