Abstract
Harbin boiler company (HBC) started the development of technologies for high-efficiency ultra-supercritical boilers in 2012 using its technologies and extensive operation experiences of many ultra-supercritical boilers. These technologies were applied to efficiently reduce the CO_2 emission and operating cost of thermal power plants. In 2014, Huaneng Changxing 660MW high-efficiency ultra-supercritical boiler started operation, its unit efficiency was 46.035%, net coal consumption rate was 〜275g/kwh. Both values exceeded other standard ultra-supercritical boilers. As the boiler supplier, HBC is fully responsible for the boiler general performance design, manufacturing and commissioning supervision. This article presents the general conditions, design features and reliability run operating data with high-efficiency ultra-supercritical parameters of this project.
