摘要
二次再热是降低火电机组能耗的重要技术手段。在借鉴欧洲成果的基础上,通过整合国内火电机组设计、设备制造、运行管理等方面的经验,提出整体优化设计理念。同时根据宽负荷节能的要求,讨论了大型火电机组节能设计的一些关键技术,特别是汽轮机冷端和锅炉余热利用两方面的进展,给出大唐东营项目节能设计的主要成果。通过创新设计,充分利用东营项目优越的环境条件,在采用常规初参数、保证性价比、尽可能不增加系统复杂程度的前提下,使机组额定工况发电煤耗与供电煤耗分别达到248g/(k W·h)和257g/(k W·h)的优异水平。研究表明,国内火电机组节能设计有很大潜力。
Double reheat technology is a key measure to reduce energy comsumption in thermal power units.The principle of overall optimization and design is put forward combined with experiences in design,manufacturing and operation of thermal power units in China based on Europe technologies.And then,the key technologies for energysaving design of large thermal power units are discussed according to requirements of wide laod energy-saving,and the progress for the cold end of steam turbine and waste heat utilization of boiler is especially presented.Then,results for Datang Dongying project design are given.By innovative design,remarkable levels for the coal consumption of power generation and power supply,reaching 248 g/(kW·h)and 257 g/(kW·h)respectively,are realized.The research shows that there is high potential for energy-saving design of thermal power units.
作者
高智溥
苏民
蒋寻寒
何阿平
沈国平
刘钢
阮圣奇
赵文波
GAO Zhipu;SU Min;JIANG Xunhan;HE Aping;SHEN Guoping;LIU Gang;RUAN Shenqi;ZHAO Wenbo(China Datang Corporation,Beijing 100033,China;China Datang Corporation Science and Technology Research Institute East China Electric Power Test and Research Institute,Hefei 230088,China;Shanghai Electric Power Generation Equipment Co.,Ltd.Turbine Plant,Shanghai 200240,China;Northeast Electric Power Design Institute,Changchun 130021,China;China Datang Corporation Science and Technology Research Institute North China Electric Power Test and Research Institute,Beijing 102206,China)
出处
《热力透平》
2020年第1期1-7,16,共8页
Thermal Turbine
关键词
二次再热
节能
优化设计
汽轮机冷端
锅炉余热利用
double reheat
energy conservation
optimal design
cold end of steam turbine
waste heat utilization of boiler
