Heptafluoropropane HFC-227EA gas fire extinguishing system is a set of fire extinguishing agent products system that is harmless to the human body. Its fire extinguishing speed and good fire extinguishing performance can effectively guarantee the safety of the protection zone, and the release will not have much impact on the environment. You can also rest assured, let’s take a look at this article with the editor below, and see what are the six characteristics of the Heptafluoropropane HFC-227EA automatic fire extinguishing system.
1. Extremely short fire extinguishing time and good fire extinguishing performance
Fire grows from small to large at an exponential rate. Deadly combustion products, such as heat and smoke, are also most produced during the very initial stages of combustion, so these combustion products are also most damaging to delicate electronic equipment in the first few minutes of ignition. Heptafluoropropane HFC-227EA agent can be sprayed within ten seconds after the nozzle starts to release the fire extinguishing agent, and it can extinguish class A, B, and C fires before the fire have fully developed. Suppressing a fire in its critical early stages can save millions of dollars worth of equipment and minimize lost production.
Heptafluoropropane HFC-227EA fire extinguishing agent mainly extinguishes fire through physical cooling and heat absorption. Heptafluoropropane HFC-227EA belongs to the same category as air conditioner coolant, so it is an effective heat transfer agent. Heptafluoropropane HFC-227EA liquid agent releases and absorbs the heat energy in the fire through vaporization so that the combustion reaction cannot be maintained. In addition, Heptafluoropropane HFC-227EA can also release free radicals during combustion and finally inhibit the chain reaction of combustion.
Heptafluoropropane HFC-227EA fire extinguishing system's response speed and strong fire extinguishing ability can avoid catastrophic fires.
2. Prevent damage to equipment in the protected area
Heptafluoropropane HFC-227EA is a colorless and odorless gaseous fire extinguishing agent at normal temperatures. After release, it contains no particles or oil residue and is non-conductive and non-corrosive. Therefore, electronic instruments, computers, software, data files, communication equipment, or complex medical equipment will not be damaged during firefighting. After the release of Heptafluoropropane HFC-227EA, the fire extinguishing agent can be discharged through simple ventilation to quickly restore the protected area to normal conditions.
3. Impact on the environment
As a chemical fire extinguishing agent, not only the present but also the future environmental protection issues must be considered. The impact of all human activities on the environment is becoming one of the important environmental issues in the future. The application of a gas fire extinguishing agent should minimize its damage to the atmosphere or the surrounding environment.
At this stage, the international community often uses the greenhouse effect as the basis for influencing global warming. To effectively evaluate the impact of a fire extinguishing agent on environmental warming, its direct and indirect impact on the environment should be considered first. Heptafluoropropane HFC-227EA agents can survive in the atmosphere for 31-42 years after being released, and the Heptafluoropropane HFC-227EA fire extinguishing system only releases when a fire occurs and has only a slight impact on environmental warming.
4. Safety of the human body
The design concentration of the Heptafluoropropane HFC-227EA fire extinguishing system is low and meets the safety index stipulated by EPA of the US Environmental Protection Agency. In 1993, the US Environmental Protection Agency EPA recognized the safety of Heptafluoropropane HFC-227EA in the Federal Register and approved Heptafluoropropane HFC-227EA to be used in human spaces.
According to NFPA2001, personnel does not need to evacuate the protected area when the design concentration is lower than 9.0% (volume ratio). When the design concentration is between 9% and 10.5% (volume ratio), the personnel stay in the protected area for no more than 5 minutes. More than 10.5 % (volume ratio) design concentration is not allowed to allow people to stay in the protection area, otherwise, it will lead to personal safety. Generally, the design concentration of the Heptafluoropropane HFC-227EA fire extinguishing system is about 7-8%, which is safe for the human body.
5. Mature technology
Because the Heptafluoropropane HFC-227EA fire extinguishing system meets the requirements of modern clean fire extinguishing systems in terms of fire extinguishing performance, environmental impact, and human safety. At present, NFP2001 (design standard for clean chemical fire extinguishing system in the United States), IS014520 (design standard for gas fire extinguishing system in Europe), and GB50370 (design specification for gas fire extinguishing system in China) all incorporate Heptafluoropropane HFC-227EA fire extinguishing system into their standard system. At the same time, Heptafluoropropane HFC-227EA fire extinguishing system has also been recognized by many certification agencies around the world. Major fire extinguishing system manufacturers at home and abroad also regard the Heptafluoropropane HFC-227EA fire extinguishing system as their first choice.
The Heptafluoropropane HFC-227EA fire extinguishing system has been used for nearly 20 years, and has gradually matured in terms of design and application, system hardware, and agents, and has become the most widely used system in the gas fire extinguishing system market.
6. Thermal decomposition
Heptafluoropropane HFC-227EA will decompose at high temperatures (about 550 degrees Celsius) to produce hydrofluoric acid (HF). Hydrofluoric acid has a strong pungent odor and can be detected before reaching the maximum dangerous exposure concentration. It is harmful to personnel and electronic equipment. Corrosion effect of a weak acid. In order to shorten the impact of thermal decomposition on the protected area, the current specification design standard stipulates that the spraying time of Heptafluoropropane HFC-227EA should not exceed 10 seconds, and it is not recommended that the Heptafluoropropane HFC-227EA fire extinguishing system be used in the environment of the protected area exceeding 550 degrees Celsius.