煤电升级改造背景下烟气余热利用节能效益对比评估

王华霆, 陈衡, 徐钢, 安吉振

Comparative Evaluation of Energy-Saving Benefits of Flue Gas Waste Heat Utilization Under the Background of Coal Power Upgrading

Huating WANG, Heng CHEN, Gang XU, Jizhen AN

表3 低温省煤器方案特性参数及节能效果

Tab. 3 Characteristic parameters and energy saving effect of low-temperature economizer scheme

参数 数值 进口烟气温度/℃ 127 出口烟气温度/℃ 90 进口烟气流量/(kg⋅s-1) 750 出口烟气流量/(kg⋅s-1) 750 换热量/MW 29.38 进口凝结水温度/℃ 55.085 出口凝结水温度/℃ 113.365 凝结水流量/(kg⋅s-1) 120 换热温差/℃ 22.63