火电机组灵活性技术改造热力特性试验研究  

ExperimentalStudy on Thermal Characteristics of Thermal Power Unit Flexibility Technical Reform

作　　者：蔡斌 韩义 荣俊 王研凯 于英利 袁东辉 李晨光 CAI Bin;HAN Yi;RONG Jun;无(Neimenggu Power(Group)Co.,Ltd.Neimenggu Electric Power Science and Research Branch;Neimenggu Power(Group)Co.,Ltd.Neimenggu Ultra-high voltage Power Supply Branch)

机构地区：[1]内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司,呼和浩特010020 [2]内蒙古电力(集团)有限责任公司内蒙古超高压供电分公司

出　　处：《电站系统工程》2024年第6期5-7,共3页Power System Engineering

基　　金：2023年内蒙古电力(集团)有限责任公司科技项目“超临界燃煤锅炉超低负荷高效运行技术研究”项目(2023-zc-13)资助。

摘　　要：供热机组进行灵活性改造,对其热力特性进行试验研究。结果表明,在供热工况平均供热负荷为327.86 MW(1180.31GJ/h)时,最小出力平均电负荷为97.88 MW,为机组额定出力的29.66%,锅炉最低蒸发量为447.44 t/h,未投燃油助燃,燃烧稳定;最大出力平均电负荷为310.75 MW,为机组额定出力的94.17%,锅炉最大蒸发量为976.27 t/h。纯凝工况最小出力平均电负荷为96.71 MW,为机组额定出力的29.31%,锅炉最低蒸发量为304.44 t/h,未投燃油助燃,燃烧稳定;最大出力平均电负荷为332.87 MW,为机组额定出力的100.87%,锅炉最低蒸发量为962.70 t/h。主汽、再热汽温度、压力满足汽机运行的需要。The thermal characteristics of the heating unit were tested and modified flexibly.Under the heating condition,the results showed that the average heating load was 327.86MW(1180.31GJ/h),the average electric load of the minimum output was 97.88MW,which was 29.66%of the rated output of the unit,and the minimum evaporation capacity of the boiler was 447.44t/h without fuel,combustion stability.The average electric load of the maximum output is 310.75MW,which is 94.17%of the rated output of the unit,and the maximum evaporation of the boiler is 976.27t/h.In the pure condensing condition,the average electric load of the minimum output under pure coagulation condition is 96.71MW,which is 29.31%of the rated output of the unit.The minimum evaporation of the boiler is 304.44t/h,and the combustion is stable without fuel injection.The average electric load of the maximum output is 332.87MW,which is 100.87%of the rated output of the unit,and the minimum evaporation capacity of the boiler is 962.70t/h.Main steam and reheat steam temperature and pressure meet the needs of steam engine operation.

关 键 词：火电机组 新能源消纳 深度调峰 灵活性改造 热力特性 

分 类 号：TK21[动力工程及工程热物理—动力机械及工程]