Users who commonly use liquid nitrogen containers know:
Choose a liquid nitrogen tank to store biological samples, and use a “liquid nitrogen supply tank” to replenish liquid nitrogen to the sample storage tank!
Although they have different purposes, they have the common feature of storing liquid nitrogen;
They are all vacuum insulation structures, but they can only reduce the volatilization of liquid nitrogen instead of completely preventing it. Therefore, will the liquid nitrogen in the liquid nitrogen supply tank be used up? The answer to this question is clear!
Will run out!
The liquid nitrogen supply tank was born for the replenishment of laboratory cryogenic containers, and liquid nitrogen delivery is realized by pressurization! It’s supercharged with liquid nitrogen!
The specific process is that the liquid nitrogen in the booster tube is vaporized when it contacts the heat of the outer tank. When rehydration is required, the booster valve is opened, and the nitrogen gas in the booster tube enters. A small amount of pressure compresses the inner tank of liquid nitrogen. , so that the pressurized infusion is completed.
It can be said that the pressurization of the liquid nitrogen supply tank depends entirely on liquid nitrogen! Every boost will consume liquid nitrogen, although a very small amount!
Moreover, from the series of pressurization data of the KGSQ manufacturer, the more liquid nitrogen is used, the faster the pressurization will be!
If it is a full liquid nitrogen supply tank, the standard pressurization is completed and the discharge time is 20 seconds;
When the liquid nitrogen storage is 3/4, it takes 1 minute to complete the pressurization; when the storage is 1/4, it takes 8 minutes to pressurize!
Such supercharging consumption, coupled with natural loss, of course the liquid nitrogen in the liquid nitrogen supply tank will be used up!