【 Weak current college 】 computer engine room fire technology

Fire protection system is essential for a security computer room. Engine room fire must be non-corrosive effects of gas fire extinguishing installations. Gas fire extinguishing equipment for fire extinguishing performance reliable, no damage to the electronic equipment, dark tube cloth installation, does not affect the overall effect of the engine room.

Automatic fire alarm system design

Room structure and fire safety analysis

1. the engine's structure is divided into three layers: under the floor, ceiling, and floor ceiling.
2. General room fire factors mainly consists of the electrical overload or short circuit caused by combustion of major regional generally under the floor or ceiling, the burning issue of smoke at the beginning, the temperature rise is relatively slow.

Fire alarm system design

Design fire detector location

1, floor, ceiling installation under two different sensitivity smoke detector, both in a smoke detector unit detection area set 2 different sensitivity of the detector.
Install 2, floor 1, smoke detector, 1 thermal detectors; ceiling installation 1 smoke detector, 1 thermal detectors

Fire protection system design

1, all the way in the engine room alarm occurs, the second road to the police and the gas injection into three stages of the action signal should be in the building fire safety reflected in the control room, so that the unified management of the building.
2, and building original alarm device is not compatible, the realization of the three States of transport, there are two scenarios can be implemented, one is through building weak electricity well placed pipelines to building fire control rooms and control room to install the appropriate status display, this approach enables the engine to various action point State, but in building fire in the engine room more cases, building weak electricity well may not be able to accommodate larger pipeline of space, and engine room alarm fire controllers need to be sent out of the State of the signal through the passive control module, to building near the existing alarm system input module (extra), just on the building's original alarm system additional input module enables reprogramming, this method saves rearranging pipeline.
3, non-fire power and building alarm system connections, linkage, air-conditioning systems and the closure of non-fire power, gas injection into action when the former 30S, alarm controller received a two-alarm signals off air conditioners, issued after the fire of fire dampers in the region and the non-fire-power signals.

Fire-extinguishing system design

1, according to the specific characteristics of the engine room, the system uses the gas fire extinguishing systems and fire-extinguishing, design systems of other auxiliary electrical equipment.
2, sets a gas emergency start stop button, installed in the walls of fire area.
3. set the second sound and light alarm set gas spray-and-drop indicator, installed in the fire area inside and outside each one.
4, set a gas-injection-and-drop indicator, gas injection and drop indicator is fire controller received a gas pipeline pressure switch actions after the return signal to control. Other alarm system equipment such as Manual alarm button, fire alarm, etc., in accordance with the fire code for the settings.

Gas fire extinguishing system

1. choose the type of gas fire extinguishing system,
2, according to the engine room area set cylinders-size location system reservoir pressure using 2.5Mpa. You can guarantee that the majority of the gas in the cylinder can be uniform spraying to fire area.
3, the area between the cylinders can be smaller. Also need to consider in the design of the bearing between the cylinders, general building bearing in 600kg/m2, big up to 1000kg/m2, in the selection of bulk-fire-fighting cylinders, you need to load-bearing slabs in 1000kg/m2 or more, so in the design of fire-extinguishing system, the need to specify a full cylinder of weight and floor space so that architects in structural design, the need to reinforce measures taken between cylinders, in order to ensure the safety of the building.

Gas extinguishing region protection requirements

1, through the fire zone air conditioning pipes, electric fire damper installed on both sides.
2, for underground no pipeline downside air supply of air conditioning systems, fire extinguishing regional wall installation-electric fire damper, fire control valve normally open to guarantee the room air conditioning air, fire, close all, to ensure that fire not regional pharmaceutical leak out.
3. installing in fire extinguishing system area door must be open to the outside and install door closer.