Some liquid nitrogen tanks rely on vacuum insulation structures to store liquid nitrogen, thereby enabling low-temperature cryogenic storage of samples;
Others rely on vacuum insulation structures to store liquid nitrogen, and can also use the power of liquid nitrogen vaporization to output liquid nitrogen!
The former is very familiar to our scientific researchers and livestock breeders and is commonly used. The latter is called “liquid nitrogen supply tank”, which is an emerging low-temperature equipment and can be used for superconducting and freezing accessories. Of course, the most used one is laboratory liquid. Nitrogen container pressurized rehydration!
Let’s talk about the first question first, how much pressure will be increased?
The answer is ≥0.02MPa, <0.09MPa, in short it cannot be equal to or exceed 0.1MPa!
The manufacturer sets the pressure to the liquid nitrogen supply tank within 0.1MPa, and has double safety valves to “check” it. When the pressure is ≥ 0.09MPa, these two valves start to prepare and open to release excess pressure. Prevent the pressure inside the tank from exceeding the preset standard value, causing some dangers caused by increased pressure.
It can also be seen from this that the liquid nitrogen supply tank is only a low-pressure tank, with no pressure exceeding 0.1MPa!
Therefore, the second question is very clear. It is not divided into medium pressure and high pressure like the traditional Dewar bottle, nor is it a steel cylinder. It is just a low-pressure liquid nitrogen supply tank with a valve to control liquid replenishment and casters to move it. , very suitable for rehydration of laboratory cryogenic containers!
Finally, the KGSQ liquid nitrogen tank manufacturer reminds: Actual measurement data shows that when the liquid nitrogen supply tank increases the pressure to 0.05MPa, the liquid nitrogen delivery speed is stable and the liquid nitrogen loss is small. Although the container can be increased to close to 0.09MPa, the greater the pressure, the faster the replenishment speed, and the loss of liquid nitrogen will increase. The important thing is that close to 0.09MPa can easily “wake up” the safety valve!