基于[火用]分析的能量梯级利用供热变工况运行优化研究  

Research on Operation Optimization of Energy Cascade Utilization Heating Based on Exergy Analysis

作　　者：侯建军 付喜亮 李染生 刘贵喜 孙燕平 孙利 梁占伟 HOU Jianjun;FU Xiliang;LI Ransheng;LIU Guixi;SUN Yanping;SUN Li;LIANG Zhanwei(Inner Mongolia Jingneng Shengle Thermal Power Co.,Ltd.,Hohhot 011517,China;Beijing Jingneng Power Co.,Ltd.,Beijing 100025,China;Guoneng Guohua(Beijing)Electric Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]内蒙古京能盛乐热电有限公司,内蒙古呼和浩特011517 [2]北京京能电力股份有限公司,北京100025 [3]国能国华(北京)电力研究院有限公司,北京102209

出　　处：《中国电力》2023年第8期230-240,共11页Electric Power

基　　金：国家重点研发计划资助项目(工业锅炉节能与清洁燃烧技术,2017YFB0603904)。

摘　　要：为了实现能量梯级利用,实现供热机组的变工况优化,建立了基于[火用]分析的供热经济性评价模型,研究了全厂[火用]效率、供热[火用]指数以及发电煤耗和供热煤耗的变化情况;基于热力系统集成优化软件搭建了仿真模型,研究了高背压供热机组的高低旁抽汽供热、高低旁抽汽-背压机供热、中排抽汽供热及中排抽汽-背压机供热变工况运行的经济性,结果表明:中排抽汽-背压机供热方式的最佳[火用]效率、[火用]指数、发电煤耗及供热煤耗指标均优于其他供热方式;基于[火用]分析方法得到的供热煤耗能够评价不同供热方式的经济性。研究结果可为能量梯级利用供热变工况运行优化提供支撑。In order to realize the optimization of energy cascade heating unit,An analysis-based evaluation model of heating economy is established,Got the whole plant efficiency,the heating index,And power generation coal consumption and heating coal consumption based on analysis;The simulation model built based on the thermal system integration and optimization software,This paper studies the operation economy of high back pressure heating unit,high and low side steam extraction-back pressure heating,middle exhaust steam heating and middle exhaust steam extraction-back pressure heating,The results show that the best efficiency,index,power generation coal consumption and heating coal consumption index of middle exhaust steam-back compressor are better than other heating modes;Based on the analysis method,the heating coal consumption can be the economy of different energy heating modes.The research results provide support for the operation optimization of energy cascade using heating transformer condition.

关 键 词：热电联产 能量梯级利用 高背压 [火用]分析 运行优化 

分 类 号：TM621[电气工程—电力系统及自动化]