Fire disaster alarm system

The utility model discloses a fire disaster alarm system, its technical scheme main points are including central controller, central controller is connected with smoke transducer, central controller is connected with the alarm module, central controller drives the action of alarm module in response to the dense smoke signal, still including setting up the holding tank on the wall of pavement, setup in the water service pipe on holding tank upper portion and the solenoid valve that is controlled by central controller, the towel has been placed in the holding tank, the holding tank is providedwith the delivery port towards the lower part of holding tank, the solenoid valve sets up on the water service pipe, control solenoid opens central controller in response to the dense smoke signal, when the conflagration took place, smoke transducer sent the dense smoke signal to central controller, and the police dispatch newspaper is sent out to central controller drive alarm module, and centralcontroller control solenoi