中文摘要：

目前国内燃煤电厂逐步开展超低排放改造。针对某电厂超低排放改造前后污染物控制设备的物耗和能耗变化进行分析,主要包括脱硫系统的石灰石和水的消耗量以及电耗、SCR系统的液氨耗量以及电耗、和静电除尘器的能耗,为火力发电厂污染物控制设备进一步节能降耗提供参考。根据计算得出的物耗、能耗,计算某电厂超低排放改造前后污染物控制单元能耗和物耗的附加煤耗：2014年污染物控制单元总的附加煤耗为17.07 g/k W·h,2015年为17.86 g/k W·h,超低排放改造后为18.28 g/k W·h。针对超低排放改造前后的物耗和能耗以及附加煤耗的变化进行分析,研究变化原因,为企业提高发电效率和节能减排提供指引。超低排放的投入导致了运行成本的增加,但统筹考虑带来的环境效益,超低排放是现实且可行的选择,是改善环境的重要出路。

英文摘要：

Nowadays,the domestic coal-fired power plants gradually start the ultra-low emission transformation. Analysis on the before and after consumption changes of the materials and energy caused by the ultra-low emission transformation in a power plant is conducted in this paper,including the consumption of the limestone,water,ammonia,and energy of FGD,SCR and ESP. The research could provide a reference for the devices in the power plant to take further energy saving measurements. And the additional coal consumption before and after the ultra-low emission renovation according to the materials and the energy consumption is calculated：the value of the additional coal consumption was17. 07 g/k W·h in 2014,and 17. 86 g/k W · h in 2015,and after the ultra-low emission renovation it turned into18. 28 g/k W·h. Finally,some advices for the companies to improve the efficiency of power generation are proposed to save energy and reduce emission according to the analysis of the material-and-energy consumption changes as well as additional coal consumption change. The enforcement of the ultra-low emission causes the increase of operating cost.However,taking the environmental benefit into consideration,it is a practical and feasible choice,and also an important way to improve the environments.