Potential hazards of oxygen nitrogen and argon cryogenic tank

Cryogenic liquid storage tank is a jacket type vacuum powder insulated pressure vessel specially used for storing and supplying low temperature liquefied gas (such as liquefied natural gas LNG, liquid nitrogen, liquid oxygen, liquid argon, liquid carbon dioxide, etc.). It has been widely used in industrial production and daily life.
 
Cryogenic storage tank manufacturers briefly describe the potential dangers of cryogenic liquid storage tanks by analyzing the dangerous characteristics of cryogenic liquids and combining various gas supply modes of cryogenic liquid storage tanks.
 
The boiling point of the cryogenic liquid at a pressure of 101.3 KPa: liquid nitrogen is -196 ° C, liquid oxygen is -183 ° C, and liquid argon is -186 ° C. When in contact with the human body, it can cause severe frostbite on the skin and eyes. When a small amount of low-temperature liquid leaks or leaks in the pipe valve, it will absorb the heat of the surrounding environment, the leakage point will quickly condense and frost, and in severe cases, it will freeze. In the surrounding environment of the cryogenic storage tank, the cryogenic liquid is likely to form a gas-rich area after leaking and gasifying. If the concentration of nitrogen, argon and carbon dioxide is large, it is easy to cause suffocation.
 
In addition, when the oxygen concentration is large, oxygen-enriched injury may also occur. Oxygen is a strong combustion aid and has extremely strong oxidizing properties. Liquid oxygen is close to combustibles, and it is easy to cause burning in case of open flame; contact with combustibles, it is easy to knock due to vibration, impact, etc .; mixed with combustibles, there is a potential explosion hazard. Liquid oxygen can adhere to clothing fabrics, which can easily cause flash fire in case of ignition sources, which may injure people.