1000MW直接空冷机组排汽管道内湿蒸汽的数值模拟  

Numerical Stimulation of Wet Steam inside Exhaust Pipe of the 1 000MW Direct Air Cooling Power Unit

作　　者：吕太[1] 王宏博[1] 

机构地区：[1]东北电力大学,吉林132012

出　　处：《汽轮机技术》2014年第4期265-268,291,共5页Turbine Technology

基　　金：中国电力工程顾问集团东北电力设计院;空冷排汽管道管件阻力系数分析研究;项目编号:K2012-029

摘　　要：排汽管道是空冷岛重要的系统和部件,其管线布置方式是否合理,管内压降及蒸汽流量分配均匀性是否满足设计和使用要求,影响到空冷凝汽器的运行效率和冬季的防冻维护,是直接关系到发电机组经济运行和安全的大问题。应用ANSYS、FLUENT等计算流体力学软件(CFD)对某1000MW直接空冷机组排汽管道内的湿蒸汽进行了数值模拟,并对模拟结果进行了简要分析、研究。为直接空冷机组排汽管道的设计选型提供了参考依据,并对直接空冷机组排汽管道的进一步优化设计提供帮助。The exhaust pipe is an important system and component of the air cooling island. Whether the pipeline arrangement is reasonable and whether the pressure drop inside tube and the steam now distribution uniformity can meet design and operation requirements affect the operational efficiency and antifreeze maintenance of the air-cooling condenser. It also refers to the large problem on the economic operation and security of the power unit. Using the CFD software called ANSYS and FLUENT,numerical stimulation on wet steam inside exhaust pipe of a 1000MW direct air cooling power unit. Analyses and research the simulated result. Provides reference frame and assist for exhaust pipe design selection and further optimal design of direct air cooling power unit.

关 键 词：直接空冷 排汽管道 高位布置 数值模拟 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]