基于EBSILON的1000MW机组热再抽汽供热改造研究  

Research on Retrofit of the Heating System with Extraction Steam from Reheat Hot Section in a 1000 MW Unit Based on EBSILON

作　　者：曾海波 陈卓 Zeng Haibo;Chen Zhuo(CHN Energy Changyuan Hanchuan Power Gengeration Co.,Ltd.,Hanchuan 431614,Hubei Province,China;School of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou 450003,China)

机构地区：[1]国能长源汉川发电有限公司,湖北汉川431614 [2]华北水利水电大学电力学院,郑州450003

出　　处：《发电设备》2023年第3期192-197,共6页Power Equipment

基　　金：国家能源集团科技创新项目(GJNY-20-27)。

摘　　要：基于EBSILON软件建立的评估模型,对超超临界1000MW燃煤机组热再抽汽供热系统进行仿真研究,计算分析该系统的热再抽汽供热蒸汽质量流量在0~450t/h变化时对机组主要参数和热经济性的影响.研究结果表明:在不同的锅炉蒸发量下,随着供热蒸汽流量的增大,发电热耗率近似呈线性下降;锅炉蒸发量越小,随着供热蒸汽流量的增大,发电热耗率降低得越显著.Based on the evaluation model established by EBSILON software,a simulation research was carried out for the heating system with extraction steam from the reheat hot section in an ultra-supercritical 1000 MW coal-fired unit,while a calculation and analysis was conducted on the influence of the mass flow rate of extraction steam for heating within 0-450 t/h on the main parameters and thermal economy of the unit.Research results show that,under different boiler load conditions,the heat rate of electricity generation is decreasing in a linear fashion with the increase of the heating steam flow rate.Under the lower boiler load condition,the heat rate of electricity generation has a significant decrease with the increase of the heating steam flow rate.

关 键 词：超超临界机组 热再蒸汽 抽汽供热系统 发电热耗率 发电功率 

分 类 号：TK219[动力工程及工程热物理—动力机械及工程]