火力发电厂中基于光纤传感技术的火灾报警系统设计

针对国内外电厂对缆式线型感温的设计要求,突出了线型感温探测的重要性。从光纤感温探测的原理开始,对整套系统进行了结构性研究。主要研究了系统结构、探测光缆、控制器等组件。结合拉曼散射原理,剖析温度变化引起探测光缆的吸收和反吸收效应;强调了光学感温探测系统的应用优势和安装条件等。最后结合实体项目,分析对比了传统感温电缆和光学感温探测系统在实际工程应用中的优缺点,并提出了优化方案,以提高火灾报警系统的工作效率。

Design of Fire Alarm System based on Optical Fiber Sensing Technology of power plant

In this paper it researched the application of optical fiber sensing technology, compared the design requirements to cable type linear temperature in power plants in China and abroad, highlighted the importance of linear temperature detection, and then have a structural research on the system. It mainly studied the system structure, detection cable, controller components etc, analyzed the absorption and anti-absorption effect caused by the change of temperature, combining with Raman Scattering theory, and the application advantages and installation conditions of optical temperature detection system. At last, refer to the two programs that designed by Zhejiang Electric Power Design Institute, it comparatively analyzed the advantages and disadvantages of traditional temperature cable and optical temperature detection system in the actual project application and put forward the optimization scheme .