Abstract: The ammonia area in the power plant belongs to major hazards and key fire prevention area. Fire sprinkler system and intelligent fire alarm system install in ammonia area, through the combustible gas detection alarming device and flame detector, the fire sprinkler system is interlocked startup. The fire sprinkler system based on the intelligent control can ensure the safety of ammonia area, reduce the possibility and dangerous of the accident

Key words: ammonia area, fire sprinkler system, intelligent control, combustible gas detection alarming device