The deeply flexible peak-shaving for coal-fired power plant is an extremely important measure to promote the consumption of renewable energy power,which as a result could largely decrease CO2 emission.However,at present,this technology of deeply flexible peak-shaving has some difficulties in load adjustment and NOx emission.This paper firstly uses a novel technology route,with the circulating fluidized bed being coupled with preheating for pulverized coal.And the 240 t/h circulating fluidized bed boiler was reformed and built.The results show that the load adjustment deepness decreased by 18%,and the ultra-low NOx emission without ammonia injection was realized.The successful operation of this demonstration project provides a technical support for the development of the technology with the deeply flexible peak-shaving for coal-fired power plants.
关键词
240t/h循环流化床锅炉/煤粉预热/负荷深度调节/超低NOx
Key words
240 t/h circulating fluidized bed boiler/Preheating for pulverized coal/Deeply flexible peak-shaving/Ultra-low NOx