1000MW超超临界机组循环水系统低负荷优化提效研究  

Study on Efficiency Improvement of Low Load Optimization of Circulating Water System in 1000MW Ultra-Supercritical Unit

作　　者：蒋欣军 王安 徐卫 李军 JIANG Xin-jun;WANG An;XU Wei(State Energy Taizhou Power Generation Co.,Ltd)

机构地区：[1]国家能源集团泰州发电有限公司,江苏泰州225327

出　　处：《电站系统工程》2021年第1期82-84,共3页Power System Engineering

基　　金：国家能源集团科技创新项目(GJNY-19-139-2)资助。

摘　　要：根据某电厂1000 MW机组循环水系统特点,建立凝汽器最佳真空数学模型,研究实施循环水泵组合优化运行,机组供电煤耗率下降0.58 g/(kW·h),针对低负荷运行特点,研究比较循环水系统连通改造和循坏水泵低速改造两种方案在低负荷运行时的经济性,提出合适的改造方案,为今后火电机组低负荷经济运行提供参考。According to the characteristics of the circulating water system of a 1000 MW unit in a power plant, the optimal vacuum mathematical model of the condenser is established, the optimized operation mode of the circulating water system is studied and implemented, and the average coal consumption rate of the unit power supply is reduced by0.58 g/(kWh). According to the characteristics of the low load operation, the economy of the two schemes of the combined transformation of the circulating water system and the low-speed transformation of the circulating water pump are studied and compared, and the appropriate ones are put forward The reconstruction scheme can provide reference for the low load economic operation of thermal power units in the future.

关 键 词：循环水系统 最佳真空 低负荷 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]