According to the research of replacing halon 130 1 fire extinguishing agent and the relevant regulations in China, the available gas fire extinguishing agents are halon 130 1 (restricted), carbon dioxide, IG54 1 inert gas and halogenated hydrocarbon (heptafluoropropane) gas. In these gas fire extinguishing systems.
Heptafluoropropane fire extinguisher is chosen because heptafluoropropane is colorless, odorless, clean, low toxic, good in electrical insulation and high in fire extinguishing efficiency. In particular, heptafluoropropane has no damage to the ozone layer, its residual time in the atmosphere is relatively short, and its environmental protection performance is obviously better than halon. It is a clean gas fire extinguisher successfully developed so far, and it is considered to replace halon 130 1, 12658.
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Matters needing attention in heptafluoropropane gas fire extinguishing system:
The heptafluoropropane gas fire extinguishing system is generally pipe network type, cabinet type and suspension type, and also belongs to the internal storage pressure heptafluoropropane gas fire extinguishing system, and its transportation distance is less than 30 meters;
There is also an external storage pressure heptafluoropropane gas fire extinguishing system, and the transportation distance can reach 150 meters. Choose gas fire extinguishing scheme, not blindly. Generally, the appropriate gas fire extinguishing scheme is selected according to the size and structure of the protected area to avoid economic waste.
Common protected areas are:
Computer room, data processing center, telecommunication facilities, process control center, expensive medical facilities, valuable industrial equipment, archives, libraries, museums and art galleries, clean rooms, anechoic rooms, emergency power supply facilities, flammable liquid storage areas, etc. , can also be used for the production and operation of fire dangerous places, such as paint production lines,
Electrical aging room, rolling mill, printing machine, oil switch, oil-immersed transformer, dipping tank, melting tank, large generator, drying equipment, pulverized coal bunker in cement production process, ship engine room, cargo hold, etc. , is an area or place where people often work and need gas protection.
Baidu encyclopedia-heptafluoropropane gas fire extinguishing system