CHEN Guoqiang1, LIU Yonglin2, LIU Jiping2, et al. STUDY ON VARIATION BEHAVIOR OF OPERATIONAL PARAMETERS FOR ULTRA-SUPERCRITICAL 1000 MW UNITS[J]. Thermal power generation, 2011, 40(10): 46-49.
CHEN Guoqiang1, LIU Yonglin2, LIU Jiping2, et al. STUDY ON VARIATION BEHAVIOR OF OPERATIONAL PARAMETERS FOR ULTRA-SUPERCRITICAL 1000 MW UNITS[J]. Thermal power generation, 2011, 40(10): 46-49.DOI:
超超临界1000MW机组运行参数变化特性研究
摘要
以国产超超临界1 000MW机组为研究对象
建立了机组运行参数基准值计算模型、机组运行参数经济性分析模型及耦合热力系统变工况模型
研究机组运行参数变化对机组经济性影响的电负荷特性及环境特性。结果表明
排汽压力对机组经济性影响最大
而主蒸汽参数、再热蒸汽参数偏低对机组经济性也有明显影响
并且与电负荷和环境温度具有明显的耦合性。
Abstract
Taking the home-made ultra-supercritical 1000 MW unit as object of study
a calculation model of reference value for operational parameters of unit
an economic analysis model for operational parameters of unit
and a coupled off-design model of the thermal system have been established
the influence of unit load variation upon the economic efficiency of unit
as well as upon the electric load of unit and environmental properties
being studied
results of study show that the influence of exhaust steam pressure upon the economic efficiency of unit is the greatest
the influence of main steam parameters is also substantial
and having remarkable coupling behavior with the electric load and the ambient temperature.