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How does sulfur hexafluoride cause harm?
发布时间：2020-07-10
来源：ydlcb 浏览次数：33次
How does sulfur hexafluoride cause its harm? It is important to know that there are many industries that need to use SF6 gas, and there are many manufacturers that produce SF6 gas, which are possible emission sources of SF6 gas, and the harm of sulfur hexafluoride is also accompanied by these emission sources. For example, if the manufacturer of SF6 gas is poorly managed in the production process and the technology is immature, it is very likely to lead to the discharge of SF6 gas in the production process. This is one of the reasons why the harm of sulfur hexafluoride occurs. Secondly, many power equipment need to flush SF6 gas, and many large insulated switches also need to use SF6, if the equipment replacement operation is improper, or the equipment is not repaired, then it is possible to cause SF6 gas leakage, and the harm is thus.
The six greenhouse gases are identified by the Kyoto Protocol and are the main sources of global warming that will destroy the ecological environment. Sulfur hexafluoride is also among them, and the harm of sulfur hexafluoride mainly comes from the greenhouse effect it causes. The harm of sulfur hexafluoride is due to the strong ability of SF6 gas to absorb infrared radiation (absorb a lot of surface heat and low altitude radiant heat). The global warming potential of sulfur hexafluoride is 22,800 times that of carbon dioxide, that is, the greenhouse effect caused by 1 kg of SF6 emitted into the atmosphere is equivalent to 22.8 metric tons of CO2 emissions. We all know how serious the global warming caused by CO2 is, but SF6 is also so bad! In terms of causing climate warming, the harm of sulfur hexafluoride can not be ignored!
Since we know that sulfur hexafluoride is very harmful, why use SF6 gas? Knowing the harm of sulfur hexafluoride, but also using SF6, is largely due to the fact that there is no substance that can perfectly replace SF6. We all know that SF6 gas in the power industry and high-voltage switches, sulfur hexafluoride gas insulation and other aspects almost occupy a dominant position, the power industry, fire extinguishers, semiconductor production, photoelectric industry and so on are inseparable from it. This is the main reason why SF6 gas is used even though sulfur hexafluoride is known to be harmful. Isn't it a little bit like knowing that there are tigers in the mountains? In fact, many scientists in the world are developing new technologies that can replace SF6 gas, such as ABB recently announced the development of a new insulating gas mixture to replace sulfur hexafluoride, achieving a major breakthrough in the field of switching technology. The project is currently being tested in a pilot project in Switzerland, and if successful, it is reported that the environmental impact can be greatly reduced, reducing carbon dioxide emissions by 50% and greatly reducing the harm of sulfur hexafluoride.
Sulfur hexafluoride itself is a non-toxic and harmless gas, but under the action of high temperature and high pressure arc, it tends to decompose and free a variety of products, decompose hydrofluoric acid (HF) and toxic SOF2, SO2F2, SF4 and SOF4 and other low-cost sulfur fluoride, under the action of high temperature arc, It will also decompose sulfur dioxide (SO2) and hydrofluoric acid (HF), which produce one of the greenhouse gases. These toxic gases will not only corrode the equipment itself, but also cause serious harm to the human body once it leaks! The toxic breakdown of SF6 is also a hazard of sulfur hexafluoride. Some of these decomposing substances are toxic and can cause harm to the human body. At the same time, if a large amount of sulfur hexafluoride gas is inhaled, it will also cause adverse reactions such as asphyxia. But sulfur hexafluoride gas is the "oxygen" that is not available in the power industry, in case of sulfur hexafluoride gas poisoning? How to prevent sulfur hexafluoride gas poisoning? How do we know if sulfur hexafluoride is poisoned?
Since we know that sulfur hexafluoride is very harmful, why use SF6 gas? Knowing the harm of sulfur hexafluoride, but also using SF6, is largely due to the fact that there is no substance that can perfectly replace SF6. We all know that SF6 gas in the power industry and high-voltage switches, sulfur hexafluoride gas insulation and other aspects almost occupy a dominant position, the power industry, fire extinguishers, semiconductor production, photoelectric industry and so on are inseparable from it. This is the main reason why SF6 gas is used even though sulfur hexafluoride is known to be harmful. Isn't it a little bit like knowing that there are tigers in the mountains? In fact, many scientists in the world are developing new technologies that can replace SF6 gas, such as ABB recently announced the development of a new insulating gas mixture to replace sulfur hexafluoride, achieving a major breakthrough in the field of switching technology. The project is currently being tested in a pilot project in Switzerland, and if successful, it is reported that the environmental impact can be greatly reduced, reducing carbon dioxide emissions by 50% and greatly reducing the harm of sulfur hexafluoride.