How to do the machine room fire system

Fire system，With the rapid development of modern communication technology in China, the communication industry has become a significant sign of the progress of modern society.

As a large bearing communications hub of communications equipment room and other places of fire safety also appears especially important, if the event of a fire accident, the entire city could instant communication network paralysis, will cause great inconvenience to people's production and life, social influence and damage to property caused by difficult to measure.
1. In the gas extinguishing system of the machine room, the main components of the equipment include:
Smoke, temperature, sound and light alarm, emergency stop, gas indicator light, IO module, gas fire control controller, cabinet type 7 fluoro-propane fire extinguishing device.
2. What gas extinguishing system is the best in computer room?
Hfc-227ea/FM200 is a clean gas extinguishing agent which is mainly chemical extinguishing and has physical extinguishing effect.
It is colorless, tasteless, low-toxic, non-conductive, pollution-free, and does not cause damage to property and precision facilities;
Able to extinguish B, C fire and electrical fire with low fire extinguishing concentration;
The storage space is small, the critical temperature is high, the critical pressure is low, and it can be liquefied under normal temperature.
After release, there is no particle or oil residue, no damage to the ozone layer (ODP value is zero), and the duration of stay in the atmosphere is 31~42 years, which meets the environmental protection requirements.
1. Main equipment
The equipment of FM200 gas extinguishing system can be divided into two parts, namely, the storage and discharge equipment, alarm and control equipment.
Drug storage and discharge equipment mainly consists of seven fluorin propane (FM200) gas cylinders, cylinder fixed support, bottle of head valve, electromagnetic starter, bottle of head valve manual starter, high-pressure hose, air hose, nozzle, etc.
Alarm and control equipment mainly includes the following contents: gas control panel, smoke fire detector, the emergency stop button, alarm, buzzer and flashing lights, gas release indicator, pressure switch, etc.
2. Overview and design of the reserve
The system is designed to protect the computer room on the fourth floor.
According to the economic and reasonable, the principle of optimization design, on the premise of guarantee the performance of the system safe and reliable, to reserve the following division, sharing a system: a computer room, S = 40 m2, clear height h = 3.5 m, volume V = 140 m3, the 110 kg of seven fluorin propane (FM200) gas cylinders N = 1, reagent dosage of seven fluorin propane is 98 kg, design concentration 8%. This scheme is set up between the cylinder on the second floor.
System USES nitrogen pressurization, boost pressure is 4.2 MPa, jet in 7 seconds a certain concentration of FM200 fire extinguishing agent, and make it evenly with the reserves, and dipping time not less than 3 minutes, will reserve the fire out.
3. System design performance
1. Basic design parameters
(1) relevant parameters of the reserve
(2) the reserve is an independent enclosure
(3) ventilation equipment is installed in the reserve
(4) the reserve design environment temperature is 20 ℃
(5) the altitude correction coefficient is 1 (FM200) of seven fluorin propane gas fire extinguishing system, the minimum design fire extinguishing concentration is 8% (20 ℃), within 7 seconds jet a certain concentration of FM200 fire extinguishing agent, and make it evenly with the reserves, and dipping time not less than 3 minutes.
(iii) requirements for protected areas:
(1) the reserve shall be an independent area
(2) the fireproof limit of the protection structure and doors and Windows of the reserve shall not be less than 0.5 h, and the allowable pressure of the enclosure structure and doors and Windows shall not be less than 1200Pa.
(3) before spraying FM200, all equipment affecting the effect of fire extinguishing should be stopped
(4) ventilation systems in the reserve should be closed before FM200 is sprayed.
Fire the fire valve and close the vent.
(5) doors of the protected areas shall be opened and closed on their own;
Ensure that all conditions can be opened from the protected area.
(iv) the requirements of the cylinder room
According to the requirements of domestic standard, the storage of gas cylinders group room (the cylinder room) should be a separate room, located in outside the reserve, and is directly leads to the export of evacuation corridor, have to close the door.
Cylinder chamber should not be lower than the secondary refractory grade, at room temperature for - 10 ℃ ~ 55 ℃, between the cylinder should be equipped with ventilation, dry ventilation.
The FM200 storage bottle should avoid direct sunlight and not allow combustible, flammable and corrosive materials to be stored in the bottle station.
The area of the cylinder is about 8m2.