| 汽轮机转子表面温度测量的模拟试验研究 |
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| 引用本文： | 吴波,王坤,吕方明,黄树红,贺国强,童杏林.汽轮机转子表面温度测量的模拟试验研究[J].动力工程,2011,31(6). |
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| 作者姓名： | 吴波 王坤 吕方明 黄树红 贺国强 童杏林 |
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| 作者单位： | 1. 华中科技大学能源与动力工程学院,武汉,430074
2. 武汉理工大学光纤传感技术与信息处理教育部重点实验室,武汉,430074 |
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| 基金项目： | 国家863高技术资助项目(2008AA04Z404) |
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| 摘 要： | 汽轮机转子表面温度是对其进行高温蠕变损伤分析及转子热应力、热疲劳分析的关键数据之一,为解决精确测量汽轮机转子表面温度的难题,通过理论与试验相结合研究了热电偶和光纤等接触式测量、红外辐射式非接触测量等不同方法的特点,及转子旋转、振动对红外方式测温的影响.结果表明:采用传统热电偶等接触式方式测量转子表面温度存在响应时间长、信号引出困难等固有缺陷;红外测温响应速度快,能够在一定程度上较准确地测量汽轮机转子的表面温度并且能长期对转子表面温度进行在线监测,转子的旋转及振动对红外测温系统影响很小.
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| 关 键 词： | 转子表面温度 光纤测温 热电偶 红外测温 轮盘 旋转 振动 |
Simulation Investigation on Surface Temperature Measurement of Steam Turbine Rotors |
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| WU Bo
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WANG Kun
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L Fang-ming
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HUANG Shu-hong
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HE Guo-qiang
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TONG Xing-lin.Simulation Investigation on Surface Temperature Measurement of Steam Turbine Rotors[J].Power Engineering,2011,31(6). |
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| Authors: | WU Bo WANG Kun L Fang-ming HUANG Shu-hong HE Guo-qiang TONG Xing-lin |
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| Affiliation: | WU Bo1,WANG Kun1,Lü Fang-ming1,HUANG Shu-hong1,HE Guo-qiang1,TONG Xing-lin2(1.School of Energy and Power Engineering,Huazhong University Of Science and Technology,Wuhan 430074,China,2.MOE's Key Lab of Fiber Optic Sensing Technology and Information Processing,Wuhan University Of Technology,China) |
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| Abstract: | Surface temperature of turbine rotor is one of the key parameters to analyze its high temperature creep,thermal stress and thermal fatigue properties.In order to improve the precision of temperature measurement,simulation investigation has been performed to study the features of contacted(thermocouple and optic fiber) and non-contact(infrared radiation thermometer) temperature measurement method,and analyze the influence of rotor rotation & vibration on measurement of infrared radiation thermometer,in both ... |
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| Keywords: | surface temperature of rotor optical fibre temperature measurement thermocouple infrared temperature measurement disc rotor rotation vibration |
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