Self-pressurized liquid nitrogen tank, the non-working state is a liquid nitrogen tank, and the working state is a liquid nitrogen replenishing tank;
With its own booster system, it outputs liquid nitrogen by pressure, just like all pressurized containers;
Like other pressure vessels, the self-pressurized liquid nitrogen tank has its own normal pressure and belongs to the classification;
How much pressure does it need to be normal?
To say that the pressure of the self-pressurized liquid nitrogen tank is normal, it is necessary to know its maximum pressure value and standard working pressure!
The self-pressurized liquid nitrogen tank is different from other stainless steel storage tanks. Most of the others are high-pressure containers, but the self-pressurized liquid nitrogen tank is low pressure!
That is to say, the maximum pressure value of the self-pressurized liquid nitrogen tank cannot exceed 0.1MPa!
In order to prevent users from reaching 0.1MPa due to unskilled operation, there is a certain risk, the manufacturer has set a critical value of 0.09MPa;
When this critical value is reached, the safety valve of the self-pressurized liquid nitrogen tank opens to release the excess pressure.
Let’s talk about normal pressure, which can be divided into two situations according to use:
One, a small amount of liquid nitrogen output, pressurized to 0.02MPa can be satisfied;
The second type, a small amount of liquid nitrogen output needs to be pressurized ≥0.05MPa, of which 0.05MPa is a normal pressure value.
When = 0.05MPa, the liquid nitrogen can be continuously and uninterruptedly output, and the amount of vaporized liquid nitrogen used is also less, which is economical and practical;
When >0.05MPa, <0.09MPa, the liquid nitrogen delivery speed is increased, the delivery time is faster, and the amount of liquid nitrogen used for gasification and boosting will also increase accordingly.
On the whole, 0.05MPa is the normal pressure of the self-pressurized liquid nitrogen tank, which is economical and has high infusion efficiency!