二滩水电站地下厂房主要机电设备的消防设施

The fire fighting facilities for the main mechanical and electrical equipment of underground power house in Ertan Hydropower Station

针对二滩水电站地下厂房的重要性和复杂性,为防止火灾事故扩大的可能性,地下厂房的消防设计成主厂房、主变压器洞及第一副厂房三大防火分隔区,各区再分为若干小防火区域。对于固定式水喷雾灭火系统,其核心部分采用了雨淋阀系统,既保证了发电机运行时能随时监测和自动、及时灭火,又解决了消防设备需定期试验又不能影响发电机正常运行的矛盾。二滩电站地下厂房消防系统的设置做到了确保重点、安全可靠,又兼顾一般、方便易行,是一个完整的监测与控制有机结合的全自动消防系统,可供大型水电站特别是采用地下厂房的大型水电站设计时参考。

According to the importance and complexity of underground power house of Ertan Hydropower Station, and in order to avoid the spread of fire failure, the fire fighting design for the underground power house divides the whole power house into three separated zones, that is, power house zone, main transformer tunnel zone and the first auxiliary plant Then every zone is divided into several small fire fighting zones again The core part of fixed water spray fire extinguishing system adopts rain splash valve system that not only can guarantee to monitor and extinguish fire automatically and timely during the operation of power generator but also can solve the contradiction of the regular check of fire fighting equipment and the normal operation of power generator The design of fire fighting system for the underground powerhouse of Ertan Hydropower Station reaches the guarantee of key places, safety and reliability, easy to operation So it is a automatic fire fighting system integrating the monitoring and control, which can be used for reference in the design of large scale hydropower stations, especially those with underground power house