分布式光纤温度传感技术在水电工程中的应用研究

Application of Distributed Optical Fiber Temperature Sensing Technology in Water-Power Engineering

详细分析了分布式光纤温度传感技术在水电工程中的应用。首先,在介绍分布式光纤温度传感系统与测温原理基础上,分析了该技术能用于水电工程诸多方面的可行性。其次,介绍了该技术在渗漏监测方面的应用,给出了监测不同水工建筑物渗漏时的光纤布置方案与监测方案;通过监测实例介绍了如何利用该技术监测水库库水温度;依托实际工程,研究了该技术在混凝土坝施工过程中温度监控时光纤布设所遵循的原则和埋设的基本方法。最后,通过理论分析,提出了利用该技术监测河流断面流速的基本思路与测量方法。

The applications of distributed optical fiber temperature sensing technology in water-power engineering were analyzed in detail in this paper. Firstly, on the basis of the introduction of distributed optical fiber temperature sensing system and the principle of temperature measurement, the feasibility of this technology in water-power engineering applications was proved. Secondly, the application of this technology for leakage monitoring was introduced, and the optical fiber layouts for different hydraulic structures were offered. Thirdly, through the example, the method of reservoir water temperature measurement was introduced. Fourthly, in combination with practice engineering, the principles and methods of optical fiber layouts for temperature measurement in concrete dam construction were studied. At last, through theory analysis, the idea and method on cross-section velocity measurement was brought forward using this technology.