【 Weak current College 】 fire doors and fire shutter of linkage control

Summary: with the modern, intelligent building development, more and more high-rise buildings, growing area, if not properly set the fire doors and fire shutter control, in the event of fire, the fire spread very rapidly, will give people a great loss of life and property.
Keywords: fire door fire shutter linkage control intelligent

With the modernization and development of intelligent buildings, more and more high-rise buildings, growing area, if not properly set the fire doors and fire shutter control, in the event of fire, the fire spread very rapidly, will give people a great loss of life and property.
Equipped with automatic fire alarm and coordinated control system of building, how to set the fire shutter and fire doors of linkage control, is a measure of automatic fire extinguishing system is a key link, directly affects the entire process of fire-fighting system and the success or failure, I now turn to our actual work reflected a number of ideas.

1 fire doors

1.1 evacuation channel always fire doors

Normally open fire door subject should be ordinary door closer and order for the special requirements set fire door release switch, when the fire doors on either side of the smoke detector actions by the joint modules connected fire door release switch for DC24V coil, release the locked fireproof door, you can also use hand forcibly pull out on the release of fire doors, fire doors in the door closer and sequencer automatically close by, thus blocking the Fireworks, fire door was closed signal feedback to fire control rooms.

1.2 normally closed doors must have a security feature of fire doors

Some evacuation channels, unit managers usually require security and security, often closed doors need to lock, if not fire technical measures, once locked the door, fire personnel will not be able to evacuate lead to tragedy, an example of this is fairly universal. Currently this is still a large number of security risks exist, is not a proper inspection of fire, but the security managers of security on the equally important, the inspectors of the prohibition of locked fireproof door requirements is difficult to get the Manager's support, this fire door control measures must be taken simultaneously.

Simple function can be set to push the latch type electromagnetic lock, complex functionality requirements can choose evacuation door controllers, such products usually used electromagnetic lock to lock the door, with anti-theft alarm function. In the event of fire, the fire protection module control evacuation door controllers on fire doors, private security evacuation door controllers emit sound and light alarm signals to guide officers soothing Isaac. The scene also has fire hydrant buttons, emergency personnel can crack glass started directly opened the safe evacuation door controllers fire doors, and the issue of a sound and light alarm signal. A safe evacuation door controllers can control eight following fire doors.

2 electric fire shutter

The automatic fire alarm system design code provisions relating to fire closes after confirmation of fire shutter. In system design, "using probe group or two different types of fire detectors and alarm after the and gate signal as confirmation of the fire." Thus, according to the real fire auto-alarm system design code requirements if two or more smoke detection and alarm, the shutter to reducing staff have not been early, fire, it is clear that this is the evacuation of shutter closes too early. If two different types of detectors, such as: a smoke detector and a temperature sensor detector and alarm, then let the curtain dropped, so early in the fire, will have a lot of smoke through the shutter, it is clear that the shutter closes was too late. The author believes should be under fire shutter setting in place and use different select reasonable control:

2.1 on setting in evacuation channel fire shutter

The fire, the personnel required to be dispersed by evacuation channels, as in fire emergencies, people tend to panic, since the shutter closes the evacuation routes stuck, will increase the level of panic, cause unexpected casualty, is not conducive to safe egress, is not conducive to firefighters entered the fire-fighting. Caution should be exercised in evacuation channel settings shutter, replacing them with fire doors.

If you must evacuate channel set fire curtain, you should meet the doctrine of "located in evacuation channel fire shutter shutter should be in two settings and close the device with automatic, manual and mechanical control functions. "Requirement in the linkage design should take two control modes, i.e. in the fate of shutter two set dedicated smoke and heat two detectors, which for the first time the whereabouts by smoke detector control from the stop to 1.8m to prevent smoke spread to another fire partition, the second by thermal detectors control fall through to the end to prevent the spread of fire.

2.2 on setting fire District Office to do fire fire curtain separated

Because of the settings here fire shutter does not affect the fire emergency State of evacuation, fully take control of one-step drop. Take the escalator surrounding fire shutter, for example, you can each shutter lateral one or two dedicated smoke detector. In programming, design into any two dedicated smoke detector formation and door alarm linkage surrounding fire shutter step down to the end. At this point, no smoke and temperature-sensing probes group to simplify the system and lower cost.

In addition, because of the importance of fire curtain, only setup linkage control still cannot meet the requirements of its reliability and should be in the fire control room on fire shutter for centralized management, and a manual emergency descent fire shutter control button.