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What are the main ingredients of Hexafluopropane + HFC 236fa Extinguishant?
Hexafluopropane is hexafluoropropane, HFC-236fa is 1,1,3,3-hexafluoropropane, and the two are actually the same substance. The main component of this fire extinguishing agent is hexafluoropropane, which has a stable chemical structure and is composed of carbon and fluorine elements.
Hexafluoropropane fire extinguishing agent can efficiently extinguish fires because of its unique physical and chemical properties. It is a colorless and odorless gas at room temperature and pressure, with a density greater than air, and can quickly settle to cover the fire source. In case of fire, hexafluoropropane decomposes to produce free radicals, which react with the active groups in the combustion reaction, interrupting the combustion chain reaction and preventing the combustion from continuing. At the same time, it has a low boiling point, absorbs a lot of heat during gasification, reduces the temperature of the combustion area, and In addition, it has good insulation and is suitable for fighting electrical fires without causing secondary damage to electrical equipment. It is often used in electronic equipment rooms, power distribution rooms, computer rooms, and other places to quickly extinguish fires while reducing the impact on equipment. It can ensure the safety of the site and the normal operation of the equipment.
What is the fire extinguishing principle of Hexafluopropane + HFC 236fa Extinguishant?
Hexafluopropane (hexafluoropropane) and HFC 236fa fire extinguishing agents are both halogenated hydrocarbon fire extinguishing agents. The fire extinguishing principle is as follows:
When these two are exposed to fire, the fire extinguishing agent quickly vaporizes and is scattered in the combustion area. First, halogenated hydrocarbon molecules decompose under the action of high temperature of the flame, generating halogen radicals. These radicals are extremely active and can react in a chain with key radicals in the combustion reaction (such as hydroxyl radicals, etc.). In a chain reaction, halogen radicals combine with radicals in the combustion reaction, thus interrupting the combustion chain reaction and making the combustion unsustainable.
Second, the gasification process of the extinguishing agent absorbs a lot of heat, causing the temperature of the combustion area to drop sharply. When the temperature drops below the ignition point of combustibles, combustion is difficult to maintain.
Third, the gas density formed by the fire extinguishing agent after gasification is greater than that of air, which will form a gas film on the surface of the combustion substance, isolating the air, making it difficult for oxygen to contact the combustibles, and then cutting off the combustion-supporting materials required to achieve the effect of fire extinguishing. In this way, Hexafluopropane and HFC 236fa fire extinguishing agents achieve the purpose of fire extinguishing by interrupting the chain reaction, reducing the temperature and isolating oxygen.
Which fire types are Hexafluopropane + HFC 236fa Extinguishant suitable for?
Hexafluoropropane and HFC-236fa fire extinguishing agents are suitable for all kinds of fires, and their use range is quite wide.
For Class A fires, this extinguishing agent can be applied to fires caused by carbon-containing solid combustibles, such as wood, cotton, wool, hemp, paper, etc. Because hexafluoropropane and HFC-236fa fire extinguishing agents can quickly reduce the temperature of the fire field and isolate oxygen to a certain extent, thus effectively curbing the spread of such fires.
For Class B fires, that is, fires caused by liquid or meltable solid substances, such as gasoline, kerosene, diesel oil, crude oil, methanol, ethanol, asphalt, paraffin, etc., this extinguishing agent is also effective. It can quickly form a protective film on the surface of the liquid, inhibit the evaporation of the flammable liquid, prevent oxygen from contacting the flammable liquid, and then achieve the purpose of fire extinguishing.
As for Class C fires, that is, gas fires, such as gas, natural gas, methane, ethane, propane, hydrogen, etc., hexafluoropropane is also suitable for HFC-236fa fire extinguishing agent. Because it can dilute the concentration of flammable gas in the fire field in a short time, destroy the combustion conditions, and achieve fire extinguishing.
In addition, for Class E fires, that is, live fires, this fire extinguishing agent can also be used to ensure safety. It has good electrical insulation properties, does not cause electric shock hazard due to the use of fire extinguishing agent, and can effectively extinguish fires caused by live facilities such as electrical equipment, wires and cables.
In summary, hexafluoropropane and HFC-236fa fire extinguishing agents have good applicability in a variety of fire types, providing a strong guarantee for fire safety.
What are the precautions in the use of Hexafluopropane + HFC 236fa Extinguishant?
When using hexafluoropropane and HFC-236fa fire extinguishing agent, there are many things to pay attention to. The first priority is safety. Although this fire extinguishing agent has the effect of extinguishing fire, it should be used in a confined space or cause hypoxia, so it is necessary to ensure good ventilation to prevent the risk of personnel suffocation. Read the instructions carefully before use to explain its application to fire conditions, such as flammable liquids, electrical fires, etc., but it may not be effective for active metal fires, etc. Do not misuse and cause trouble.
Furthermore, when using this fire extinguishing agent, the operation should be accurate and correct. According to the standard process, choose the appropriate time and appropriate position to spray, so that the fire extinguishing agent can fully act on the fire source and achieve the best fire extinguishing effect. When spraying, people should be in the upwind position to avoid the fire extinguishing agent from rushing against the wind and damaging themselves.
Also, storage is also important. It should be stored in a cool, dry and ventilated place, protected from direct sunlight and high temperature environment, to prevent the container from being damaged and leaking. Regularly check its containers and valves. If there is rust or damage, repair or replace them quickly to ensure their performance is intact.
And after use, clean up the site properly. The extinguishing agent or residue may affect the equipment and environment, so it must be cleaned up to check whether the equipment is damaged, so that it can be repaired in time and resume its normal operation. In this way, it is necessary to make good use of hexafluoropropane and HFC-236fa fire extinguishing agent to ensure safety and prevent fire.
What is the impact of Hexafluopropane + HFC 236fa Extinguishant on the environment?
Hexafluopropane is hexafluoropropane, and HFC-236fa is also a fluorine-containing compound. Both are often used as fire extinguishing agents. The impact of this fire extinguishing agent on the environment is truly imperceptible.
Its destruction coefficient to the atmospheric ozone layer is nearly zero, which is a great improvement compared to the chlorofluorocarbon-containing fire extinguishing agents in the past. In the past, fire extinguishing agents contained chlorine elements, which would seriously deplete the ozone layer, which is the earth's natural barrier and can block the sun's harmful ultraviolet rays. It is a blessing that this fire extinguishing agent has no such drawbacks today.
However, although this fire extinguishing agent does not destroy the ozone layer, it is a greenhouse gas. Its greenhouse effect potential is quite high, and its emission into the atmosphere will exacerbate global warming. Global warming has caused many scourges such as melting glaciers, rising sea levels, and frequent extreme weather.
And this fire extinguishing agent is chemically stable and persists in the atmosphere for a long time, which increases its potential threat to the environment. Once released, it persists in the atmosphere for a long time and continues to affect the climate.
Therefore, although Hexafluopropane and HFC-236fa fire extinguishing agents have positive performance in ozone layer protection, their greenhouse gas properties still make them have a significant impact on the environment. Use it with caution and constantly explore more environmentally friendly alternatives to balance the relationship between fire extinguishing needs and environmental protection.