Smoke detection alarming and fire fighting system

The invention discloses a smoke detection alarming and fire fighting system. The smoke detection alarming and fire fighting system comprises a smoke detection probe, a main control panel and an alarm bell as well as an alarm button, a deluge system and a fire fighting water booster pump, wherein the deluge system comprises a deluge valve and a deluge nozzle, the main control panel is connected with the smoke detection probe, the alarm bell, the alarm button and a false alarm cancelling switch, the false alarm cancelling switch is respectively connected with a time delayer and a booster pump, the time delayer is connected to the deluge valve by virtue of a manual switch, and the booster pump is connected to the deluge valve; the time delayer is connected with an emergency switch in parallel; the smoke detection probe is of an ionic type; the alarm button is a normally open contact button device; working condition of the booster pump is 0.2-0.3MPa. The smoke detection alarming and fire fighting system can guara