大型汽轮机变工况热力参数的3种计算方法及其比较  

Comparison of Three Calculating Procedures for Thermodynamic Parameters Under Variable Operating Conditions of High-power Turbine

作　　者：张莉[1] 程超峰 姚秀平[1] 张琰[1] 邓志成[3] 汪勇[3] 

机构地区：[1]上海电力学院能源与环境工程学院,上海200090 [2]上海电力设计院有限公司,上海200025 [3]上海发电设备成套设计研究院,上海200240

出　　处：《汽轮机技术》2012年第1期5-8,4,共5页Turbine Technology

基　　金：上海市"科技创新行动计划"项目(09111100600);上海市教委重点学科(第五期)(J51304);第三期本科教育高地建设项目(A88001)资助

摘　　要：通过分析汽轮机变工况热力计算所必需的基础数据,在传统汽轮机变工况计算原理的基础上,拟定了3种相应的计算方案,并针对某300MW汽轮机进行了计算方案的编程实施,完成了多个变工况下汽轮机的热力计算,计算结果与已知该汽机变工况下蒸汽参数设计值的对比表明:3种方案切实可行,计算精度能很好地满足工程应用要求。Three corresponding calculating procedures were laid out based on the traditional principle of thermodynamic calculation of steam turbine, by analysing the underlying data needed for thermodynamic calculations of turbine under variable operating conditions. The procedures were implemented respectively on a 300MW steam turbine, on which thermodynamic calculations under different operating conditions were completed. Comparing between the calculation results and the design values showed that the three procedures were feasible, and the calculation accuracies satisfy the requirement of engineering applications well.

关 键 词：大型汽轮机 变工况 热力参数 热力计算 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]