节能2025，Vol.44Issue(1)：14-17,4.DOI:10.3969/j.issn.1004-7948.2025.01.004
新型燃煤电厂热电联产系统节能优化分析
Energy-saving optimization analysis of cogeneration system in new coal-fired power plant
摘要
Abstract
In view of the exergic loss of exergic heat exchange of conventional heating units and the turbine departure from the designed working condition caused by a large amount of steam extraction,a new cogeneration scheme for coal-fired power plants is proposed by combining absorption heat pump technology,absorption heat exchange technology and high back pressure technology.Based on the actual operating parameters of a 350 MW cogeneration unit,thermodynamic analysis and calculation of each scheme are carried out.The results show that compared with the conventional cogeneration scheme,the exergic loss of exergic decreased during heat transfer,part of the waste heat released by the condenser was recovered,and more power generation could be obtained under the same heat supply.Under the premise of constant heat supply,the net power generation increased by 14.89 MW and the net power generation efficiency increased by 1.81％.关键词
燃煤电厂/热电联产/节能优化/余热利用/经济性分析Key words
coal-fired power plant/cogeneration/energy-saving optimization/waste heat utilization/economic analysis分类
能源科技引用本文复制引用
方亚雄,陈辉,吴影..新型燃煤电厂热电联产系统节能优化分析[J].节能,2025,44(1):14-17,4.基金项目
国家能源集团科研专项(项目编号:GJNY-23-81) （项目编号:GJNY-23-81）
