Does the pressurized liquid nitrogen supply tank also have a vent?

2024-07-05 09:54:24

Users who have a certain understanding of the structural design of liquid nitrogen tanks will know that since liquid nitrogen is stored inside the container, and liquid nitrogen has a low boiling point, considering that it naturally evaporates into nitrogen in the container, and the accumulation of nitrogen cannot be discharged, all conventional open liquid nitrogen tanks have exhaust ports at the caliber position. But everyone has also discovered that the recently launched filling equipment – liquid nitrogen supply tanks, has no opening, but is pressure-free when the stored liquid is stored statically!

Considering the volatility characteristics of liquid nitrogen, does this mean that the pressurized liquid nitrogen supply tank also has an exhaust port?

Since it has no caliber, where is the exhaust port?

Yes! The liquid nitrogen supply tank also has a vent!

Its exhaust hole is not at the mouth like the YDS liquid nitrogen tank, and the neck plug is made loose to facilitate exhaust without manual control! Instead, it is replaced by a valve that the user can open and close by himself to cooperate with the pressurized liquid replenishment!

This valve is a vent valve, you can also call it an “empty valve” or “exhaust valve”. It is gray in color and its function is to exhaust and relieve pressure. After the liquid nitrogen is delivered, open it to discharge the residual gas and liquid nitrogen in the pipeline to avoid freezing of the pipeline and pressure increase in the tank. Open it when storing liquid nitrogen daily to prevent external humid air from entering and clogging the pipeline!

Due to this function, it needs to be closed when pressurization is needed, and then the boost valve is opened to smoothly boost the pressure. Otherwise, the pressure will be boosted and released at the same time, the pressure will increase slowly and the loss of liquid nitrogen will also increase!

Now, everyone has a certain understanding of whether the liquid nitrogen supply tank has an exhaust port. There is no need to question its safety. In fact, in addition to exhausting to avoid internal pressurization, there are also double safety valves to avoid overpressure during pressurization, ensuring a stable low-pressure range!

Does the pressurized liquid nitrogen supply tank also have a vent