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What is the difference between liquid nitrogen supply tanks and liquid nitrogen pumps?

2024-06-21 09:40:39

There are not many options for liquid nitrogen replenishment tools on the market that users can use themselves. The liquid nitrogen pump is one, the liquid nitrogen supply tank is another, and there is also a liquid nitrogen cylinder similar to the booster supply tank. However, due to its medium and high pressure, laboratory users have some concerns about its use. Therefore, it is not within the scope of our discussion today.

What remains are the pumps and pressurized liquid nitrogen supply tanks. What are the differences in their use?

Difference 1: Liquid nitrogen pump is only suitable for 50mm diameter

Liquid nitrogen pump is a liquid nitrogen container auxiliary tool. It is used to connect two liquid nitrogen tanks, take liquid nitrogen from one tank and transfer it to another. Considering the convenience, the pump is not too large, so it is only suitable for liquid nitrogen tanks with a diameter of 50mm.

The ln2 supply tank is very different. It is an independent container with only one infusion tube as the liquid nitrogen delivery pipeline. It does not need to be “bound” to one of the liquid nitrogen tanks to deliver to another tank, so it is suitable for any caliber.

Difference 2: With or without liquid storage

As mentioned above, the liquid nitrogen supply tank is an independent container, which means it has its own liquid storage space and is a pressurized liquid nitrogen tank!

The liquid nitrogen pump is different. It is just a tool and cannot store liquid nitrogen. It is only equivalent to an extraction and transportation tool.

To use a liquid nitrogen pump, you need to prepare a liquid nitrogen storage tank filled with liquid nitrogen in advance!

Difference 3: Different methods of pressurized infusion

The pressurization and infusion of the liquid nitrogen supply tank is completely carried out internally. It relies on the gasification and pressurization of a small amount of liquid nitrogen inside, so it is called a self-pressurized liquid nitrogen tank. The liquid nitrogen pump is different. Its pressurization is completely dependent on external force, either mechanical electricity or foot pedal. The infusion speed is slower than that of the supply tank. When refilling a large-capacity liquid nitrogen container, the speed is slower and the liquid nitrogen loss is also high.

These are some of the differences in the use of liquid nitrogen supply tanks and liquid nitrogen pumps. Of course, in addition to these, there are also differences in pressure!

What is the difference between liquid nitrogen supply tanks and liquid nitrogen pumps