Liquid Nitrogen Storage Systems
Liquid nitrogen is used in a wide range of industrial applications. However, people who haven’t used it earlier often face a tough time in maintaining a liquid nitrogen storage
system. Here are some of the safety provisions using which you can ensure that no mishaps occur: -
Wear protective clothings
Use a face shield or safety goggles to protect your eyes (safety goggles which do not have side shields do not offer sufficient protection). Always wear cryo gloves when you handle a liquid nitrogen storage tank. The gloves need to be loose fitting so that they do not get thrown off quickly if the liquid get splashed on them. If you are handling liquid containers, it’s wise to wear high-top shoes. Trousers need to cuffless and worn outside the shoes.
Any type of canvas shoes need to be avoided since liquid nitrogen spill can be taken up by the canvas. This may cause severe burns which can occur if the user’s feet are either open or bare. Though safety experts don’t recommend the use of liquid nitrogen, wearing canvas shoes isn’t a safe practice either.
Utilise containers which are specifically for low-temperature liquids
Cryogenic containers are exactly designed and made from materials which can withstand rapid changes and differences when working with liquid nitrogen. Even these special containers should be filled slowly to minimize the internal stresses that occur when any material is cooled. Excessive internal stresses can damage the container. Avoid covering or plugging the entrance opening of a liquid nitrogen dewar. Don’t make use of a stopper or other device which could interfere with the gas venting.
The cyrogenic liquid containers are specifically designed to operate with liquid or no internal pressure. Inadequate venting might result in excessive gas pressure might damage or burst the container. The usage of a loose-fitting necktube core offered or one of the approved accessories for closing the necktube. Check the unit from time to time to ensure that the venting doesn’t get restricted by accumulated ice or frost. This will help you in liquid nitrogen storage.