百万机组水电站厂房消防灭火系统设计实践

Design of fire fighting system for hydropower station with million capacity unit

白鹤滩水电站装机容量16 000MW,电站采用左、右岸两岸厂房,单岸设有8台世界单机容量最大的1 000MW水轮发电机组。考虑到电站厂房尺寸及装机规模较大,如果消防系统不可靠造成火灾蔓延,会直接影响电网运行安全。简要介绍白鹤滩水电站消防灭火系统布置的概况,总结了地下厂房消火栓系统及气体灭火系统的设计要点,提出了主变压器采用高压细水雾灭火系统的解决方案。

The Baihetan hydropower station has left and right bank powerhouses with a total installed capacity of 16 000 MW.Each powerhouse has eight 1 000 MW hydro-generator which is the biggest unit in the world.Since the huge size and total capacity of powerhouse,the fire spread due to the unreliable firefighting system will directly affect the safety of the transmission network.Introduced the arrangement of the firefighting system of Baihetan hydropower station,summarized the key points of fire hydrant system and gas fire extinguishing system for underground powerhouse,and proposed a solution of high-pressure water mist system of main transformer.