摘要
阐述了我国1 000 MW级和600 MW级超超临界机组的运行状况.从机组设计和运行2个方面详细分析了超超临界机组在变负荷条件下效率下降的原因,重点分析了机组负荷对锅炉、汽轮机和主要辅机效率的影响.基于变负荷条件下主辅机效率低的成因,进行高效宽负荷率超超临界机组的关键技术研发.在此基础上提出1 000MW高效宽负荷率超超临界机组工程方案,并进行了该高效宽负荷率机组的对比分析.
An in percritical units load conditions, auxiliaries. To search and deve troduction is prese , together with an with focus on the effects solve the problem of low lopment were conducted o ver wide-load operation. On above basis, cient wide-load- tween the high- range ultra-supercritical efficient wide-load-range ation status of domestic 1 000 MW and 600 MW ultra-su- causes leading to the efficiency reduction under varying of unit load on the efficiency of boiler, steam turbine and main efficiency of main auxiliaries under varying load conditions, re- n key technologies of the high-efficient ultra-supercritical unit o- engineering schemes were proposed for the 1 000 MW high-effi- unit, and a c unit and the omparative analysis was subsequently conducted be- conventional units.
作者
张晓鲁
张勇
李振中
ZHANG Xiaolu ZHANG Yong LI Zhenzhong(State Power Investment Corporation, Beijing 100033, China Henan Company of State Power Investment Corporation, Zhengzhou 450016, China Combustion Engineering Research Center of Liaoning, Shenyang 110034, China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2017年第3期173-178,共6页
Journal of Chinese Society of Power Engineering
基金
国家科技支撑计划资助项目(2015BAA03B01)
关键词
超超临界机组
高效
宽负荷
关键技术
工程方案
ultra-supercritical unit
high efficiency
wide load
key technology
engineering scheme
