Gas detector can detect what kind of gas

At present, the main monitoring equipment belongs to forecasting and warning equipment, including toxic and harmful gas detectors, infrared smoke detectors, infrared thermal imagers, environmental monitoring instruments, life detectors, infrared thermometers, nuclear radiation detectors, and leakage detectors. Detective robots, etc.

The gas detector can detect common toxic and harmful gases. According to the classification can be divided into:

First, irritating gases. Including chlorine, phosgene, diphosgene, sulfur dioxide, ammonia oxide, formaldehyde, ammonia, ozone and so on. The action of irritating gases on the body is characterized by a strong irritant effect on the skin and mucous membranes, some of which also have a strong corrosive effect. The degree of damage to the body by irritating gases is related to its solubility in water and the site of action.

Second, asphyxiating gases. Including carbon monoxide, hydrogen sulfide, hydrogen cyanide, carbon dioxide and other gases. After these compounds enter the body, the hypoxia of the tissue cells varies. Carbon monoxide mainly loses the ability of hemoglobin to carry oxygen, leading to hypoxia. Hydrogen cyanide acts directly on cytochrome oxidase, causing cells to fail to take up and use oxygen. The methane back has no obvious toxicity, and it mainly reduces the concentration of oxygen resulting in hypoxic asphyxia.

Third, acute poisoning of organic gases. Including n-hexane, dichloromethane and so on. The above organic volatile compounds, like the above inorganic toxic gases, also cause harm to the human respiratory system and nervous system, and some of them are carcinogenic, such as benzene.

Fourth, flammable gas. Most organic gases are prone to explosion under sufficient combustion and combustion energy. Generally, the concentration of the explosive gas in a combustible gas is the lowest explosion limit, which is generally expressed in terms of LEL. Different gases have different LEL, so they are combustible. Gas monitoring generally detects their LEL.