Liquid nitrogen tank to open the use of high pressure valve to keep the container stored in a small amount of liquid gas gasification, gasification after the volume of large, in the container to produce a certain pressure, open the drain valve, the container of liquid gas in the pressure The role of automatic discharge out of other containers or equipment filled with liquid gas, both safe and convenient. Suitable for storage of liquid nitrogen, liquid argon, liquid oxygen and other liquid gas. There are supporting the lid to prevent evaporation, good insulation performance, strong and not fragile. This series is designed for liquid oxygen, nitrogen, argon, carbon dioxide and nitrogen oxide models for users to choose.
  Liquid nitrogen tank in the food industry Application:
1, liquid nitrogen in the application of frozen food
In many of the preservation law, the most commonly used frozen law, the effect is also very significant. And as one of the cryopreservation method of liquid nitrogen quick-frozen has long been used by food processing enterprises, because it can achieve low temperature cryogenic ultra-fast freezing, but also conducive to the realization of frozen glass part of the food, so that the food can be thawed to maximize recovery To the original fresh state and the original nutrients, greatly improving the quality of frozen food, so in the quick-frozen industry shows the unique vitality. Compared with other freezing methods, liquid nitrogen tank quick freezing has the following obvious advantages:
① frozen fast (frozen faster than the general method of freezing about 30-40 times): the use of liquid nitrogen quick freezing, the food can quickly pass 0 ℃ ~ 5 ℃ maximum ice crystal growth zone, food researchers have done in this area useful try.
② to maintain food quality: due to liquid nitrogen quick freezing time is short, the liquid nitrogen quick-frozen food can maximize the processing before the color, smell, taste and nutritional value. Duan Zhenhua and others with liquid nitrogen for betel nut frozen treatment, the results show that the liquid nitrogen treatment of betel nut to maintain a higher chlorophyll content, good flavor.
③ dry material consumption: the general loss of dry consumption loss rate of 3 to 6%, while the liquid nitrogen quick freezing can be reduced to 0.25 to 0.5%.
④ equipment and power costs low, easy to achieve mechanization and automated assembly line, improve productivity.
  At present, liquid nitrogen quick freezing is mainly caused by spray freezing, immersion freezing and cold air freezing, among which the application of spray freezing is the most extensive.
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