超超临界发电技术在中国的发展现状

The present situation of the development of Ultra-supercritical power generation technology in China

简要介绍了超超临界发电技术的定义以及国外该技术的发展现状;我国超超临界发电技术近年来发展迅速,机组台数及装机容量均居世界前列,至2018年底,我国已投运机组160台以上,超超临界机组在我国火电机组装机容量中占比约45%,供电煤耗等指标处于世界领先水平,尘、硫、氮等常规污染物已达到超低排放水平,部分已达到近零排放要求,并正在对有色烟羽治理、深度脱汞、深度脱碳等领域进行研究,未来将通过主机参数优化、余热高效利用等方法进一步提高机组效率。

This paper briefly introduces the definition of Ultra-supercritical power generation technology and the development status of this technology abroad.In China,Ultra-supercritical power generation technology has developed rapidly in recent years,and the number of units and Installed capacity are at the forefront of the world.By the end of 2018,more than 160 units have been put into operation in China,and ultra-supercritical units account for about 45%of the Installed capacity of thermal power units in China.Power supply coal consumption and other indicators are in the leading level in the world,dust,sulfur,nitrogen and other conventional pollutants have reached the ultra-low emission level,some of them have reached the near-zero emission requirements,and are being studied in the fields of colored plume treatment,deep mercury removal,deep decarbonization and so on.In the future,the efficiency of the unit will be further improved through the optimization of host parameters and efficient utilization of waste heat.