Classification of liquid nitrogen transport containers

2024-05-17 10:34:46

In laboratories and livestock farms, cryogenic static storage of samples accounts for a large proportion, and occasionally there is a need for transportation!

Especially in livestock breeding, it is often the case that cow semen stored in place A needs to be sent to place B for artificial insemination;

Or for scientific research experiments, biological samples need to be brought from country A to country B;

At this time, static storage liquid nitrogen tanks are not the first choice, and a “liquid nitrogen transport container” tailor-made for transfer is needed!

As mentioned above, there is more than one situation for sample transfer. There is road transfer from A to B, which has fewer official restrictions. There are also further cross-border routes that require the use of public transportation and security checks. Of course the liquid nitrogen transport containers used for these two types of transfers are not the same!

Next, let’s talk about liquid nitrogen transport containers for these two types of uses:

1.Liquid nitrogen transport tank

The liquid nitrogen tank suitable for road transport has the same capacity, caliber and shape as the common aluminum liquid nitrogen tank. Only the structure has been adjusted and three-sided supports have been added between the inner tank and the outer tank to reduce road bumps and The vibration caused by vehicle transportation reduces the stress on the neck tube and provides protection to prevent the neck tube from falling off or cracking due to frequent transportation.

It is a more common liquid nitrogen transport container and has a higher usage rate than the dry shipper container discussed below.

It should be noted that due to the shockproof design, the amount of internal insulation material is slightly weaker than that of the liquid nitrogen storage tank. Therefore, the storage time of liquid nitrogen is shorter than that of a static storage liquid nitrogen tank of the same volume and caliber.

2.Dry shipper container

Suitable for transferring samples using public transportation!

Its structure is different from that of a conventional liquid nitrogen tank. There are two layers of partitions in the inner tank. The outer layer is placed with samples, and the inner layer is equipped with liquid nitrogen adsorption material, and a stainless steel mesh screen is used as a barrier. When using it, you need to inject liquid nitrogen one night in advance, wait for the adsorption layer to absorb the liquid nitrogen, then pour out the remaining liquid nitrogen, put in the sample, and then go to the airport or high-speed rail station.

The advantage of dry shipper containers is that there is no liquid nitrogen inside, but nitrogen is used to maintain a low-temperature environment, ensuring that samples can be stored while successfully passing safety inspections that restrict liquid entry.

The above are the two classifications of liquid nitrogen transport containers. Do you know how to choose and use them?

Classification of liquid nitrogen transport containers