What are the consequences of improper use of sulfur hexafluoride gas?- SF6在线监测系统_SF6检漏仪_SF6传感器_SF6密度继电器

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What are the consequences of improper use of sulfur hexafluoride gas?

发布时间：2024-07-05 来源：ydlcb 浏览次数：25次

Sulfur hexafluoride itself is a non-toxic and harmless gas, but under the action of high temperature and high pressure arc, it often decomposes and dissociates a variety of products, some of which are toxic substances that will 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 high-purity sulfur hexafluoride is the "oxygen" unavailable to the power industry, in case of gas poisoning? How can I prevent it? How do we know if it's gas poisoning?

Why does sulfur hexafluoride gas poisoning occur? Due to technical problems and other reasons, the purity of some SF6 gas products is not up to standard, and there will be some harmful impurities when leaving the factory. There is also a case that when dealing with gas equipment, personnel improper operation, resulting in SF6 power equipment leakage, toxic and harmful substances leakage, resulting in gas poisoning. Of course, there are also some companies in the regular inspection of leakage and cut corners, resulting in equipment failure, resulting in gas poisoning.

The toxic gases in sulfur hexafluoride and the dust produced in the equipment are harmful to the human respiratory system and mucous membranes. Generally, after sulfur hexafluoride gas poisoning, there will be varying degrees of tears, sneezing, runny nose, hot sensation in the nose and throat, hoarseness, cough, dizziness, nausea, chest tightness, neck discomfort and other symptoms. When the above poisoning phenomenon occurs, the gas poisoning should be quickly moved to the fresh air, and timely treatment.

Once sulfur hexafluoride gas encounters high heat, high temperature (such as: electric arc), it will produce byproducts - sulfur oxide and hydrogen fluoride gas, which coexist with the undecomposed gas. At this point, there are three types of gases. Sulfur oxide is a kind of sulfuric anhydride, which is easily absorbed by the wet mucous membrane surface of the human body to produce sulfuric acid and sulfite, and has a strong irritating effect on the eyes and respiratory mucosa. The specific manifestations are tears, cough, burning throat, eye conjunctiva and respiratory tract tingling symptoms.

If high-purity sulfur hexafluoride encounters human sweat, it will make people's skin red and swollen. Hydrogen fluoride, soluble in water. It is also easily absorbed by the body's wet mucous membrane surface to produce hydrofluoric acid, which is as harmful to the human body as sulfur oxide - the eyes and respiratory tract, but more harmful. Hydrofluoric acid is often used to etch glass, which shows that it is extremely corrosive. If you encounter human sweat, the formation of hydrofluoric acid on the surface of the skin, it can penetrate the surface of the skin to the deep penetration, the formation of ulcers and necrosis, and not suitable for cure. If bone damage causes bone fluorosis, there is no recovery. Hydrogen fluoride is more toxic than sulfur oxide and sulfur hexafluoride.