Automatic fire alarm system

A, a trigger element

In the automatic fire alarm system, automatic or manual fire alarm signal generated by devices called trigger device, including fire detectors and manual alarm button. The fire detector is able to fire parameters (such as smoke, temperature, light, flame radiation, gas concentration) response, fire alarm signal generating device and automatically, according to the different parameters in response to the fire, the fire detector into heat fire detector, smoke detector, optical detector, gas detector and composite fire detector five basic types. The fire detector for different types of fire and different places. Manual fire alarm button fire alarm signal generated manually start the automatic fire alarm system, automatic fire alarm devices, is also part of the indispensable.

Two, fire automatic alarm device

The fire alarm device is in automatic fire alarm system, is used to receive, display and transmission of fire alarm signal, control and can send a control signal and has other auxiliary function indicating equipment. The fire alarm controller should provide the stable working power supply for fire detector; monitor detector and its working state; accept, conversion, processing of fire detector output report for signal; alarm; specific location and time indicating alarm; at the same time to execute the corresponding auxiliary control task, is the core of fire alarm system and so on. Part.

The basic function of fire alarm control are: the main power, backup power automatic switching function, the standby power supply charging function, power failure monitoring function, power status indication function, as a detector circuit power supply function, detector or fault alarm, fire sound, light alarm, fire alarm and memory function, functional clock unit, fire alarm priority function, sound alarm sound audible alarm mute and again.

Three, the fire alarm device

In the automatic fire alarm system, fire alarm device for fire alarm signal to send from the ambient sound, light say. Fire alarm is a kind of fire alarm device is the most basic, general and fire alarm controller together with sound, light, sound the fire alarm signal to send alarm area, to warn people to take fire safety evacuation, disaster relief measures. The alarm is a kind of fire alarm device, the fire alarm signal for an electrical device voice relay, most alarm installation part in building public space, such as corridors, halls etc..

Four, fire control equipment

In the automatic fire alarm system, when received from the trigger device of fire alarm signal, can automatically or manually start the fire protection equipment and display the state of the device, called the fire control equipment. Mainly includes the fire alarm controller, automatic fire control system, control device of indoor fire hydrant system, control device of smoke exhaust system and ventilation system, control device normally open fire doors, fire shutter, the elevator down control equipment, fire emergency broadcast communication, fire equipment, the fire alarm device, the fire emergency lighting and the control device of emergency evacuation signs in the ten kinds of control devices in whole or in part. Fire control equipment normally installed in fire control center, to facilitate centralized control, also some fire control equipment installed in a controlled fire fighting equipment on site (such as fire elevator control button), but its actions must be returned fire control signal, the control mode of combining centralization and decentralization.

Five, the power supply

Automatic fire alarm fire power equipment belonging to the system, the main power supply should be used in fire power, standby power supply by battery. Power supply system in addition to the fire alarm controller power supply, power supply and system for fire control equipment etc..