Uses and classification of liquid nitrogen storage tanks

Liquid nitrogen is commonly used in the food industry for frozen foods (quick-frozen dumplings, dumplings), freshness of vegetables, ultra-low temperature crushing of flesh and bones, and food packaging (injection of liquid nitrogen to extend the shelf life). Welcome summer food; commonly used in the livestock industry to improve the technology of cold matching of livestock, embryo transfer, ultra-low temperature collection of microorganisms, vaccine preservation, preservation of frozen sperm, treatment of skin tumours of livestock ---- liquid nitrogen scalpel;

Liquid nitrogen is commonly used in laboratories to preserve cells and granules; in the mechanical processing industry, it is often used for cryogenic liquid nitrogen cutting of high-strength steels, cryogenic ball milling, electronic component manufacturing, cryogenic superconductivity, and freezing installation of parts.

Different applications of liquid nitrogen determine different storage and transportation methods of liquid nitrogen. Transport type liquid nitrogen tank: Generally used to transfer liquid nitrogen or samples, such as loading special nitrogen in special gas plants, to withstand bumps on the road, generally around 50 liters. There is also a special type of transport tank that can absorb liquid nitrogen in the tank to prevent accidents from leaking liquid nitrogen when the liquid nitrogen tank is dumped. If you have a certificate, you can also use it on public transportation such as airplanes.

Portable liquid nitrogen tank: It is actually a kind of small storage tank, about 1-6 liters, for small sample transfer, or other special purposes.

Self-pressurized liquid nitrogen tank: generally 50 liters to 300 liters, used to add liquid nitrogen to small liquid nitrogen tanks, or special instruments and equipment to supply liquid nitrogen, have pressure valves, etc., the price is much more expensive than insulated gas cylinders, but the thermal insulation effect Better than insulated cylinders.

Small storage liquid nitrogen tank: common YDS-30-125, YDS-35-125, YDS-47-127, YDS-120-216, large caliber, can accommodate quite a few cryopreservation tubes. It needs to be used with square bucket and freezer.

Ultra-large storage liquid nitrogen tank: The sample size is large, and it is selected according to storage requirements.

Cryogenic storage tank (2m3-100m3): special large trucks are needed to transport liquid nitrogen to the factory. One cubic meter of liquid can replace 130 gas cylinders.

Nitrogen steel cylinder: Generally used in hospitals, research institutes or factories, a small amount of nitrogen is required.

Insulated gas cylinders: generally filled with 160-200 liters, used for instruments and equipment that require liquid nitrogen or nitrogen, such as LC-MS, pressure valves, etc.