All strategies for using liquid nitrogen tanks: safe operation, maintenance, and FAQs

Liquid nitrogen tanks are special containers for storing liquid nitrogen and are widely used in biological samples, medical care, scientific research and other fields. However, the liquid nitrogen temperature is extremely low, and improper operation poses safety risks. This article will introduce you in detail the safe operation, maintenance and frequently asked questions of liquid nitrogen tanks to help you use liquid nitrogen tanks safely and efficiently.

1. Safe operation

Personal protection: When operating the liquid nitrogen tank, you must wear antifreeze gloves, protective glasses and long-sleeved experimental clothes to avoid direct contact with liquid nitrogen and prevent frostbite.

Ventilation environment: Liquid nitrogen tanks should be placed in a well-ventilated place to avoid being used in confined spaces, and prevent liquid nitrogen from evaporating, causing the oxygen concentration to decrease and causing the risk of suffocation.

Hold and hold: Liquid nitrogen tank is a precision instrument. It should be held and put gently when handling to avoid collision and vibration and prevent vacuum failure.

Slow filling: When filling liquid nitrogen, proceed slowly to avoid splashing liquid nitrogen.

Regular inspection: Regularly check the vacuum and sealing of the liquid nitrogen tank to ensure safe use.

2. Maintenance

Cleaning and maintenance: Wipe the liquid nitrogen tank shell regularly with a clean soft cloth to keep it clean and dry.

Avoid corrosion: Avoid liquid nitrogen tanks coming into contact with corrosive substances such as acids and alkalis, and prevent corrosion of the tank body.

Prevent collisions: Liquid nitrogen tanks should be placed in a stable place to avoid collisions and tipping.

Long-term storage: For liquid nitrogen tanks that are not used for a long time, the liquid nitrogen inside should be emptied and kept dry and ventilated.

3. Frequently Asked Questions

Is the liquid nitrogen tank frosting normal? Frosting of the liquid nitrogen tank shell is a normal phenomenon, which indicates that the tank body has good thermal insulation performance.

What should I do if the liquid nitrogen tank pressure is too high? The excessive pressure of the liquid nitrogen tank may be due to overfilling or vacuum failure. It should be stopped immediately and contacted for handling by professionals.

Can liquid nitrogen tanks store other liquids? Liquid nitrogen tanks are designed for storing liquid nitrogen and cannot be used to store other liquids.

How to determine whether the liquid nitrogen tank is vacuum-defused? If the outer shell of the liquid nitrogen tank is severely frosted, or the liquid nitrogen consumption speed is significantly accelerated, it may be that the vacuum is invalid and a professional needs to be contacted for testing.

Summarize

Safe use of liquid nitrogen tanks requires strict compliance with operating procedures and daily maintenance. I hope this article can help you better understand and use liquid nitrogen tanks to protect your experiments and research.