水蒸气环境下金属表面温度红外测量的试验研究  

Experimental Study of the Infrared Measurement of the Temperature on Metallic Surfaces in a Steam Environment

作　　者：张进[1] 王坤[1] 吕方明[1] 安军[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《热能动力工程》2012年第1期18-23,131,共6页Journal of Engineering for Thermal Energy and Power

基　　金：国家高技术"863"计划项目基金资助(2008AA04Z404)

摘　　要：分析了在高温蒸汽环境的条件下,通过红外辐射方式对转子表面温度进行测量的可行性及影响测量精度的各种因素。同时通过试验方式研究了高温蒸汽及石英视窗玻璃对单色、双色及宽波段红外测温精度的影响。研究表明,以红外辐射方式对高温蒸汽环境中的物体(转子)进行表面红外测温是基本可行的,其响应速度能满足热应力分析的需求;单/双波段测温方式各有其优缺点;红外石英视窗玻璃对红外能量透射的干扰可控制在能接受范围内。上述结论为利用红外测温技术对汽轮机转子表面进行直接温度测量奠定基础。In a high temperature steam environment,the authors have conducted an analysis of the feasibility to measure the temperature of the rotor surface and various factors influencing the measurement precision through an infrared radiation mode.In the meantime,through a test mode,studied was the influence of the high temperature steam and quartz inspectio window glass on the single and dual color and wide wave band infrared temperature measurement precision.The research results show that to measure the surface temperature of an object(rotor) in a high temperature steam environment through an infrared radiation mode is basically feasible and the response speed can meet the requirement for thermal stress analysis.The single/dual wave band temperature measurement modes have their separate merits and demerits.The interference to the infrared energy penetration by the infrared inspection window glass can be controlled within the range acceptable.The foregoing has laid a foundation for directly measuring the surface of the rotor of a steam turbine by utilizing the infrared temperature measurement technology.

关 键 词：汽轮机转子 温度测量 红外辐射 蒸汽 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]