Requirements for Fire system

There should be two smoke detectors in the protection area of the Fire system gas fire extinguishing system. It is connected to two different alarm combinations to ensure the two level alarm requirements of the fire extinguishing system. The smoke detector in the protected area should be arranged at intervals, and the protection area of each detector is calculated at 50 to 60m2. There are overhead flooring and ceiling, and fire detectors are also set up in the protected area. In order to meet the needs of heptafluoropropane (FM200) gas fire extinguishing system and automatic fire alarm requirements linkage control system, automatic fire alarm system shall be able to receive the pressure switch from propane (FM200) gas blowing action signal and the gas control panel sends a detector alarm signal and fault signal, the fire alarm system should be set up to control the sending or receiving the signal of the module in the gas reserve near the plate.

Computer room Fire system design scheme two:
Summary
In order to protect expensive electronic equipment and data resources, state regulations stipulate that alarm and gas fire extinguishing system must be adopted in a certain scale of machine room. With the progress of the society and the increasing popularity of electronic equipment, various kinds of fire extinguishing agents have been launched. Because the environment of the machine room is good, there are not much special requirements for the alarm system, and all kinds of alarm systems are basically applicable. The computer is an important sector of each enterprises and institutions, and other related equipment because the equipment itself special requirements of fire, must be on these important equipment design of fire protection system, the Guan Jian relation is the normal operation of the equipment and protection equipment; room fire extinguishing system of prohibiting the use of water, foam and powder extinguishing agent, suitable for gas fire extinguishing system room fire; the system should be relatively independent of the system, but must be linked with the fire center. In order to ensure safety and correctly grasp the abnormal state of a large and medium-sized computer room, it is necessary to install an automatic fire extinguishing system when a fire is able to alarm and fire accurately and quickly.
The traditional water, foam, dry powder and smoke system are not suitable for fire extinguishing in the machine room. It should be a kind of gas extinguishing agent which can evaporate rapidly at normal temperature without leaving the evaporation residue, and it is non conductive and non corrosive. Gas fire extinguishing system is a gaseous compound with fire extinguishing capacity, which is stored at room temperature or at room temperature or high temperature or low temperature and low pressure container. When fire occurs, it will be put to the fire area by automatic or manual control device, so as to achieve the purpose of fire extinguishing. It has the advantages of clean, no stain and quick fire extinguishing. It is widely used in record room, electronic equipment room and expensive warehouse and so on. There are many kinds of gas fire extinguishing, but now widely used only halogenated alkane (1211, 1301), carbon dioxide, and imported FM200 and so on in recent years.
Design flow of gas fire extinguishing system
(1) to determine the type of gas extinguishing agent in accordance with the relevant design specifications to determine the room for setting up the gas fire extinguishing system.
(2) divide the protection area and the protection space, select the system form, and confirm the location between the storage bottles.
(3) calculate the amount of fire extinguishing design in the protective area according to the relevant design specifications and determine the quantity of the extinguishing agent storage bottle.
(4) to determine the layout of the bottle group within the storage bottle and check whether the size of the storage bottle is suitable.
(5) calculation, protection zone fire extinguishing agent conveying the average flow of the main way, diameter and number of nozzles set the competent road.
(6) according to the actual situation, the protection zone spaced evenly arranged sprinklers and pipes to try to set up a balanced system, the initial pipe diameter.
(7) according to the pipe network calculation method in the design standard, check and correct the pipe layout and the pipe diameter of each section until the specification requirements are met, and determine the specifications of each sprinkler head.
(8) statistics system equipment materials according to the design scheme. The comprehensive evaluation of the design scheme and the optimization and adjustment when necessary.
Smoke exhausting system
Have fire smoke is mainly to carbon monoxide, the gas has a strong effect of asphyxia, which pose a great threat to people's life, its mortality can reach more than 50-70%, in other words, when the fire disaster is the main carbon monoxide casualties first. In addition, the smoke generated by the fire shielded the eyes of the people. It makes people unable to identify directions when they are evacuated. Especially for high-rise buildings, their rising speed is very fast due to their own chimney effect. If they are not promptly removed, they will quickly spread to all parts of the building quickly, and the danger is obvious. Therefore, the fire prevention and exhaust system should be done immediately after the fire, and the smoke is quickly discharged at the fastest speed. The engine room is relatively closed environment. When gas injection occurs, gas fire extinguishing agent is not easy to exclude. Installation and exhaust system can help eliminate residual gas fire extinguishing agent.