Automatic fire alarm system classification and scope of application of what

Automatic fire alarm system by the scope of application is divided into: regional alarm system, centralized alarm system and control center alarm system.

1, regional alarm system

Regional alarm system is composed of regional fire alarm controllers and fire detectors, etc., or by the fire alarm controllers and fire probes

Monitoring, etc., the function of a simple automatic fire alarm system. This kind of system is generally used for secondary protection objects.?

2, centralized alarm system

Centralized alarm system is composed of a centralized fire alarm controller, regional fire alarm controller and fire detectors, etc., or by the fire

Disaster alarm controllers, regional monitors and fire detectors, etc., the function of a more complex automatic fire alarm system. Applicable to a larger range of multiple areas of protection, generally installed in the fire control room.

3, control center alarm system

Control center alarm system is composed of fire control equipment from the fire control room, centralized fire alarm controllers, regional fire alarm controllers

Monitor and fire detectors, etc., or by the fire control room of fire control equipment, fire alarm controllers, regional monitors and fire

Disaster detectors, etc., functions Complex automatic fire alarm system. The capacity of the system is larger, the fire facility control function is more complete, applicable to the protection of large buildings.

Expanded Information

The working principle of the automatic fire alarm system

1, the system consists of

1) Detectors: Smoke Detector, Temperature Detector, Flame Detector

2) Manual Alarm Devices: Manual Alarm Buttons

3) Alarm Controllers: Area Alarm, centralized alarm, control center alarm

2, the main functions completed by the system

When a fire occurs, the detector transmits the fire signal to the alarm controller, which is expressed through acoustic and visual signals, and displays the part of the fire occurring on the control panel, so as to achieve the purpose of forecasting the fire. At the same time, the manual alarm button can also be used to complete the manual alarm function ?

3, the system is prone to problems, causes, treatment

1) detector false alarms, detector failure alarm:

Reason: detector sensitivity selection is unreasonable, the environment is too high humidity, wind speed is too large, dust is too large, mechanical vibration, the detector is used for too long, the device parameters decline

Treatment: according to the installation environment to select the appropriate sensitivity detector. Select the appropriate sensitivity of the detector according to the installation environment, the installation should avoid the wind and wind speed of the channel, regular inspection, according to the situation of cleaning and replacement of detectors

2) manual alarm button alarm, manual alarm button failure alarm:

Reason: button use time is too long, the parameter drop or button man-made damage

Treatment: regular inspection, damaged and timely replacement, so as not to affect the operation of the system

To prevent the system from running Replacement, so as not to affect the operation of the system

3) Alarm controller failure:

Reason: the mechanical device itself is damaged by its own fault report or external detectors, manually press the button problem caused by the alarm controller to report faults, report the fire

Processing methods: use the table or its own diagnostic program to check the machine itself, or according to the (1) (2) processing methods to check whether the failure is caused by external caused by

Baidu Encyclopedia - Automatic Fire Alarm System

Baidu Encyclopedia - Regional Alarm System

Baidu Encyclopedia - Centralized Alarm System

Baidu Encyclopedia - Control Center Alarm System