1. System introduction
Heptafluoropropane (HFC-227ea) is a clean gas extinguishing agent that extinguishes chemically. It is colorless, odorless, low-toxic, non-conductive, and does not pollute the protected object. In particular, it has no destructive effect on the atmospheric ozone layer and has an ODP value of zero. It meets environmental protection requirements and is an ideal substitute for halon fire extinguishing agents at this stage. The fire extinguishing agent has high fire extinguishing efficiency, high speed and no secondary pollution.
The QM series consists of storage bottles, liquid check valves, high pressure hoses, headers, selection valves, pipe networks, sprinklers and automatic fire extinguishing controllers. The storage pressure of the system at 20 ° C is 4.2 MPa and the maximum working pressure (At 50 ° C) is 5.3MPa,
2.Fire extinguishing agent characteristics
1) It is a colorless and odorless gas. Its ozone depletion potential (ODP) is 0, which meets environmental protection requirements and is an ideal substitute for halon fire extinguishing agents.
2) Physical and chemical fire extinguishing is a new type of high-efficiency and low-toxic fire extinguishing agent. It has a low fire extinguishing concentration, a small amount of steel cylinders and a small space;
3) Heptafluoropropane fire extinguishing agent is non-conductive, does not contain water, and will not cause damage to electrical equipment, tapes, materials, etc .;
4) The minimum design concentration is 7.35% (V / V);
5) The highest concentration of non-toxic reaction (NOAEL) is 9% (V / V), which can be used in the human area.
3. Applicable occasions
1) Can extinguish various types of fires A, B, and C, and can be used safely and effectively in people's places;
2) After the medicine is sprayed, it is required to leave no traces or difficult places to clean the residue;
3) The protected area contains valuables, priceless treasures, precious files, software and hardware, etc .;
4) Particularly suitable for: telecommunications main control room, airport control room, bank vault, archives, library, computer room and other occasions.
4. Not suitable for occasions
1) In the case of chemical substances that can be rapidly oxidized without air, such as nitrocellulose and black powder;
2) Storage and production sites of active metals-potassium, sodium, magnesium, titanium, and uranium;
3) Storage place for metal hydride.
5. Numbering method: