新型宽负荷高效汽轮机组的构想及经济性分析  

Conception and Economic Analysis of New Wide Load and High Efficiency Steam Turbine Unit

作　　者：祝建飞 胥建群[2] 韩朝兵 周丽丽[2] 沈建峰 范立华 ZHU Jian-fei;XU Jian-qun;HAN Chao-bing;ZHOU Li-li;SHEN Jian-feng;FAN Li-hua(Shanghai Minghua Electric Power Science&Technology Co.,Ltd.,Shanghai 200090,China;Southeast University,Nanjing 210009,China;Dongfang Steam Turbine Works,Deyang 618000,China)

机构地区：[1]上海明华电力科技有限公司,上海200090 [2]东南大学,南京210009 [3]东方汽轮机有限公司,德阳618000

出　　处：《汽轮机技术》2025年第2期127-130,136,共5页Turbine Technology

基　　金：国家电力投资集团科技项目(SH201908)。

摘　　要：针对当前主流的节流配汽机组,分析了调峰运行的经济性,指出影响经济性的根本原因是主蒸汽压力这一循环初参数的下降。针对这一原因,提出一种新型宽负荷高效汽轮机组的构想——高压缸分列布置,在低负荷下切除其中一个以提升主蒸汽压力,另一高压缸仍维持高效运行。对新型机组基于APROS平台进行建模仿真,进一步分析热力经济性特点,并着重对高压缸效率的变化进行了论述。新型机组能在调峰方式下实现宽负荷高效,充分发挥超超临界机组清洁高效发电优势,值得重视和深入研究。In view of the current mainstream throttling steam distribution units,the economy of peak shaving operation is analyzed,and it is pointed out that the fundamental reason affecting the economy is the decrease of main steam pressure,the initial cycle parameter.In view of this reason,a new concept of wide load and high efficiency steam turbine unit is proposed,i.e.high pressure cylinders are arranged separately,one of which is cut off to increase the main steam pressure under low load,while the other high pressure cylinder still maintains high efficiency operation.The simulation model of the new unit is established by using the software of apros.The characteristics of thermal economy are further analyzed,and the change of high pressure cylinder efficiency is emphatically discussed.The new unit can adapt to the peak load regulation mode and realize wide load and high efficiency,which is worthy of attention and in-depth study.

关 键 词：调峰运行 宽负荷高效 汽轮机组 高压缸效率 

分 类 号：TM621[电气工程—电力系统及自动化]