汽轮机高温空气快速冷却特性研究  

Research on Quickly Cooling System with Hot Air of Steam Turbine

作　　者：钟世青[1] 楼波[1] 王芳[1] 

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《汽轮机技术》2010年第4期277-280,共4页Turbine Technology

基　　金：广东省科技开发项目(2008B080701004)

摘　　要：利用高温空气快速冷却汽轮机具有可观的经济效益。应用新型的温度、流量可调的快速冷却空气生产设备——高温空气发生装置,生产高温空气用于冷却汽轮机。并以某300MW汽轮机为例,利用Matlab计算了汽缸冷却过程方案,分析了冷却分段间隔、汽缸与冷却空气温差和冷却空气流量等控制参数对冷却时间的影响,进而得出在许用应力条件下最优快速冷却曲线。Quickly cooling with hot air obliged passing through the steam path after shutting down can produce considerable economic effect. A new equipment was applied to manufacture a kind of hot air, which the temperature and flow rate of hot air can be adjusted. Making a 300 MW steam turbine as an example,the steam forced cooling process was analyzed based on the Matlab software. Through researching the influence of temperature and flow rate,it reaches a positive forced cooling way that can reduce cooling time and comply with the cooling requirement.

关 键 词：汽轮机 快速冷却 新型高温空气发生装置 数值计算 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]