核电厂火灾报警系统改进及实现  

Improvement and Realization of Fire Alarm System in Nuclear Power Plant

作　　者：赵川 Zhao Chuan(Jiangsu Nuclear Power Co.,Ltd.,Jiangsu,Lianyungang,222042,China)

机构地区：[1]江苏核电有限公司,江苏连云港222042

出　　处：《仪器仪表用户》2022年第3期49-52,共4页Instrumentation

摘　　要：针对核电厂的环境特点,为了保障火灾报警系统能够正常、稳定运行,对火灾报警系统的基本要求进行了论述。对核电厂特殊环境进行了分析,提出了火灾报警系统加装抗电涌保护器,以达到抗雷击的目的,对抗电涌保护器在系统中的设置方式进行了论述。针对电缆沟类感温电缆易被强电磁干扰的情况,通过设置接口模块,提高系统的可靠性,对接口模块的工作原理进行了论述;分析了火焰和光束型探测器误报产生因素,并提出了解决方案;通过加装集烟罩,减少电缆竖井内漏报火警的几率;通过提高设备制造工艺,对设备进行三防处理,以保障设备在核电厂严苛环境下稳定运行的目的。主要对核电厂内火警系统在特殊环境下易出现的问题进行了分析,也为其它核电厂遇到同类型问题给出解决方案。Aiming at the particularity of the nuclear power plant, the setting of the fire alarm system was analyzed and discussed in this paper. According to the environmental characteristics of the nuclear power plant, to ensure the normal and stable operation of the fire alarm system, the basic requirements for the fire alarm system were discussed. The special environment of the nuclear power plant was analyzed, and it was proposed that the fire alarm system should be equipped with anti-surge protector to realize anti-lightning, and the setting method of anti-surge protector in the system was discussed. For the case that the cables are easily interfered by strong electromagnetic field, the reliability of the system was improved by setting up the interface module, and the working principles of the interface module were expounded. A fume hood was installed to reduce the probability of fire alarm omission in the cable shaft. Through improving the equipment manufacturing process, the three-proof treatment was conducted on the equipment to ensure the stable operation in the harsh environment of the nuclear power plant.In this paper, the issues that are prone to occur in the fire alarm system of the nuclear power plant in special environments were mainly analyzed, and the solutions for other nuclear power plants encountering similar issues were also provided.

关 键 词：核电厂 环境 火灾报警设备 特性 

分 类 号：TM623.8[电气工程—电力系统及自动化]