包劲松,孙永平
BAO Jin-song,SUN Yong-ping(Zhejiang Electric Power Test and Research Institute

• 1:浙江省电力试验研究院

摘要(Abstract)：

同一类型的超超临界1 000 MW机组,由于设计运行条件及系统设备构成的不同,机组的实际运行经济性能也会有明显差异。以两台机组循环效率试验结果为基础,对机组变负荷运行过程中的供电煤耗率等主要影响因素进行分析,认为机组凝汽器采用不同的海水循环冷却方式是造成运行效率差异的主要原因。
There are obvious differences in economic performance during actual operation of the same type of 1 000 MW ultra-supercritical units due to the different design operating conditions and system equipment compositions.Based on the circulation efficiency test results of the two units,this paper analyzes the main influencing factors including coal consumption rate for power supply during the variable load operation.And it points out that the major cause for differences in operation efficiency of the units is the different circulation cooling ways of the condensers with seawater.

关键词(KeyWords)： 超超临界;1000MW;变负荷运行;经济性;循环效率;海水冷却
ultra-supercritical;1 000 MW;variable load operation;economy;circulation efficiency;cooling with seawater

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基金项目(Foundation):

作者(Author): 包劲松,孙永平
BAO Jin-song,SUN Yong-ping(Zhejiang Electric Power Test and Research Institute

DOI: 10.19585/j.zjdl.2011.04.001

参考文献(References)：

• N1000-26.25/600/600型1 000 MW超超临界中间再热凝汽式汽轮机热力特性数据[R].上海:上海电气电站设备有限公司上海汽轮机厂.
• 中国国家质量监督检验检疫总局.GB/T 8117.2-2008汽轮机热力性能验收试验规程[S].北京:中国标准出版社.2008.