典型燃煤电站锅炉电除尘能效评估研究

Research on the energy efficiency evaluation of electric dust precipitation of typical coal-fired power plant

基于199台不同容量燃煤电站锅炉电除尘器电耗和设计运行参数的统计分析,从耗电率、比电耗、单位集尘面积电耗、脱除每千克颗粒物电耗等指标评估不同容量干式静电除尘器和低低温电除尘器运行能效。结果表明:电除尘器能效评估指标均随机组容量的升高而降低,提效幅度明显的低低温电除尘器存在较大节能空间。进一步结合燃煤机组碳排放核算因子,评估分析了电除尘器电耗间接引起的CO_(2)排放增加量,并在典型情景下分析了不同容量电除尘器的节能降碳潜力。结果表明:低低温电除尘器节能降碳空间较大。建议开展电除尘器节能降碳智能运行优化技术研究,提出减污降碳运行策略。

Based on the statistical analysis of power consumption and design operating parameters of 199 electric precipitators of coal-fired power station boilers with different capacities,different electric precipitators are evaluated from indicators such as power consumption rate,specific power consumption, power consumption per unit dust collection area,and power consumption per kilogram of particulate matter removed.The energy efficiency of conventional electrostatic precipitators and low-temperature electrostatic precipitators shows that the energy efficiency evaluation indicators of electrostatic precipitators all decrease with the increase of random group capacity,and low-temperature electrostatic precipitators with obvious efficiency improvements have a large energy-saving space.In combination with the carbon emission accounting factors of coal-fired units,the CO_(2) emission increase indirectly caused by the electricity consumption of the electric precipitator was evaluated and analyzed,and the energy-saving and carbon-reducing potential of the electric precipitator of different capacities was analyzed under a typical scenario.The results showed that the low-temperature electric precipitator There is a lot of room for energy saving and carbon reduction.It is recommended to carry out research on the optimization,technology of energy-saving and carbon-reducing intelligent operation of electrostatic precipitators,and to propose operating strategies for reducing pollution and carbon.