Research On Denitration Renovation Project Of 670MW Supercritical Units In Weifang Power Plant

In this paper, we conduct a study in the denitration renovation of Phase II670 MV Supercritical Power Unit in Huadian Weifang Power Generation Co.,Ltd.(referred to“Weifang Power Plant”) Theoretically,denitration renovation has an important role for energy conservation and sustainable development.Along with the increasing requirements of environmental protection, Nitrogen oxides(NO_x) become focus of controlling emissions of gaseous pollutants to thermal power plants, following dedusting and gas desulfurization. Actually,China's pattern of thermal power will not change in a long time, reducing emissions and improving the efficiency of thermal power is the eternal theme of technological progress to generation industry. The initial investment on denitration transformation for thermal power group is high, but it is profitable for Thermal Power Plant.In this paper,we started from the status of Weifang Power Plant Units and Engineering construction, analyzed several major denitration technical route of internationally popular,combined with the actual situation of boiler operation conditions,finally,we determined the selection of SCR denitration technology as the main method.And then,we did the research on system commissioning,operation and maintenance after denitration transformation.In this paper,we made sure it is effective and practicable that we did the SCR denitration transformation of Phase II 670 MV Supercritical Power Unit in Weifang Power Plant,through fielding investigation and combineding with historical data of unit operating,after fully investigation and study.And it will bring double benefits on environment and economic for enterprises,additionally,it plays a role in response to the national call for energy conservation and sustainable development.