耐高温、耐辐射型感烟探测器的研发技术方案

Research and development technical scheme of high temperature and radiation resistant smoke detector

对核电厂的高温、高辐射环境下,光电感烟探测器故障率高的问题进行了阐述和分析。考虑核电厂的特殊环境,新型耐高温、耐辐射型光电感烟探测器需要具备一定的性能指标。为了满足特殊环境下设备的性能指标及国家规范的技术要求,从硬件选择和软件开发两方面提出了研发思路。硬件方面,在材料及元器件的选择上充分考虑耐高温及耐辐射性,外壳采用不锈钢金属材质,内部结构及迷宫使用含硼工程塑料,使用耐高温元器件,内部结构设置射线屏蔽层;在软件上,根据现场实际环境数据,通过特效分析,建立稳定补充数学模型,降低探测器的误报率。通过论证与分析,该方案在一定程度上为耐高温、耐辐射型光电感烟探测器的研发工作提供了技术指导,为后续设备开发顺利实施奠定了基础。

This paper is aim to discuss and analyze the high failure rate of photo inductor smoke detector in high temperature and high radiation environment of Nuclear power station. Considering the special environment of nuclear power plant, the new type of high temperature and radiation resistant photo inductor smoke detector should have certain performance indexes. In order to meet the performance indexes of equipment under special environment and the technical requirements of national specifications, this paper puts forward the research and development ideas from two aspects of hardware selection and software development. In terms of hardware, high temperature and radiation resistance are fully considered in the selection of materials and components. The shell is made of stainless steel metal, the internal structure and labyrinth are made of engineering plastics containing boron, and high temperature components are used. The internal structure is equipped with ray shielding layer. In the software, according to the actual environment data, through special effect analysis, a stable supplementary mathematical model is established to reduce the false alarm rate of the detector. Through the demonstration and analysis of this paper, to a certain extent, it provides technical guidance for the research and development of high temperature and radiation resistant photo inductor smoke detector, and lays a foundation for the smooth implementation of subsequent equipment development.