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Liquid oxygen is one of the cryogenic liquids (liquid gas refrigerants have a boiling point lower than -90°C) and also has special properties such as: light blue color, paramagnetic property, boiling point is -193°C.
The temperature difference between liquid oxygen and the ambient temperature is very high, that's why it is necessary to isolate liquid oxygen tanks in the environment in winter. Most of the uses of oxygen are in the form of gas, but due to occupying less volume than liquid oxygen, liquid oxygen is used in It is stored in cryogenic storage tanks, evaporators and pressure control systems. Liquid oxygen reacts with almost all organic substances and metals and the oxide of that substance is formed, and if the substance is burned in the vicinity of liquid oxygen, the intensity of ignition and heat increases. River. Some materials like asphalt have the possibility of self-ignition and explosion if they come into contact with liquid oxygen for a long time.
All equipment and connections related to liquid oxygen must be completely isolated to accurately meet the required goals and must be made of materials with high combustion temperatures that are non-reactive with oxygen under service conditions.
Applications of liquid oxygen:
Most of the applications of this substance are in the form of oxygen gas, but the applications of liquid oxygen can be mentioned in the military, medical, metal, aerospace, submarines, etc. industries. Among the important applications of liquid oxygen are the use in military industries as It is an oxidizer in the fuel of rockets. Oxygen gas is used as an oxidizer in the usual fuel of rockets due to the acceleration of the burning of materials. It should be noted that liquid oxygen itself is not the main fuel and is only used to speed up the main fuel (helium). , hydrogen and...) are used.
Other uses of this material in the aerospace industry include the combination of liquid hydrogen or kerosene, both of which are used as reducing agents. For example, some ballistic missiles use the combination of liquid oxygen with alcohol or kerosene as a reducing agent. Oxidants such as V2 (liquid oxygen-alcohol) and R-7 (liquid oxygen-kerosene) are used.
When using this substance as a liquid fuel, it causes the engine to receive a special and relatively high force. Liquid oxygen is also used in metal industries along with acetylene gas for cutting, welding, hardening, cleaning and melting of metal. and iron and steel producers also use oxygen for chemical refining in connection with carbon removal and other oxidation and reduction reactions such as fuel to save energy consumption.
Some basic things you should know about liquid oxygen:
Oxygen gas is not flammable, but it accelerates the combustion and burning of materials.
Tanks under liquid oxygen pressure should not be punctured or hit in any way.
Liquid oxygen can cause serious eye and mouth damage.
The release and discharge of liquid oxygen with pressure causes freezing.
The ambient temperature for liquid oxygen under pressure is at least 52 degrees.
Due to the high insulation, the liquid oxygen tank avoids penetration and heat transfer inside the tank
Liquid oxygen is the same oxygen gas that turns into a liquid at a temperature of -196 degrees by distillation method.
Oxygen tanks are available in sizes from 2.5 liters to 800 liters.
All liquid oxygen tanks have the standard of Iran and testing and inspection companies (TUV liquid oxygen tank standard)
Ardestan Gas Company is a supplier of liquid oxygen with standard tanks in different volumes and shipping all over the country. For more information, contact us.
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