【 Weak current College 】 Metro fire design determine the "wet" fire good---Power By 【 China power house network 】

Passengers riding the subway, the greatest concern is the security issue, particularly fire safety work is governed by the public interest. Recently, this reporter was informed that the City subway line 2, line 3 design of fire has been formalized, it draws line advanced experience while using the tunnel Setup exits, installation of heat fibre, install Intelligent fire fighting system and other innovative technologies for passenger safety QC.

Ladder for accident evacuation

In the station platform public area fire incidents, stations of the escalator, requirements to maintain state in the opening run, with a view to enhancing the escalator of evacuation functions, better evacuation of passengers.

Subway tunnels located evacuation channel

Subway line no. 2, 3 are in the tunnel, direction along the length set evacuation channels, to ensure that a fire in the tunnel, the evacuation of passengers from trains to tunnel, to be able to quickly evacuate the accident tunnel, get security zone.

Laying temperature sensor fiber-optic testing exception any time

Subway line 2, line 3 in the tunnels along the length direction of laying fiber optic temperature sensor, once the temperature inside the tunnel, disaster prevention alarm system will immediately report accidents to the subway control center staff, for the first time to take effective rescue measures. It is understood that the thermal fibre can improve the accuracy of accident alarm, reducing false positives.

"Wet" fire effects

Subway line 2, line 3 will be the first dry hydrant system, the combination of dry and wet fire. Of these, using wet system underground station, the underground tunnels, elevated stations, Earth stations adopt dry-type system.
In the event of a fire, the station or the control centre of the fire alarm system received the alarm signal, will open the electric fast valve, fire control pump group of the station's water pipe network to the corresponding station or interval of pipeline input, pipeline pressure of air in the role of quick exhaust valve quickly discharged through the pipeline in a short time by dry rapidly transformed into wet system, and then pick out the hose at the fire hydrant and achieve the purpose of extinguishing fire with a water gun.
It is understood, the use of dry hydrant system, usually the pipeline without water, no freeze, the pipeline does not need insulation, no dripping water, ideal for Metro fire protection system.

Use of intelligent integrated fire control system

Subway line 2, line 3 will be consolidated, integrated Metro system and fire-fighting and disaster prevention and rescue-related systems, intelligent, comprehensive fire and disaster prevention and rescue system. Specific will rely on information technology, computer, software, networking, control, communications and other technical information, control systems, mechanical and electrical integration-one monitoring management system so that all subsystems run, fast developing coordinated emergency fire and disaster prevention plan.