Is the self pressurized liquid nitrogen tank easy to operate when used? What do I need to pay attent

The principle of the self-pressurized liquid nitrogen tank is simple to say, that is, the pressure generated by the vaporization of liquid nitrogen is used to promote the continuous and uninterrupted discharge of liquid nitrogen in the storage tank, as follows:

First of all, open the booster valve at the head of the self-pressurized liquid nitrogen tank, and the pressure will force the liquid nitrogen to be discharged from the liquid pipe at the bottom of the tank, go all the way along the booster coil, and vaporize under pressure.

Secondly, 1 cubic meter of liquid nitrogen expands to 396 cubic meters of gaseous nitrogen, and the vaporized liquid nitrogen climbs to the top due to volume problems, and the pressure in the tank providing liquid nitrogen begins to be automatically pressurized.

Finally, when it is necessary to deliver liquid to the outside, this pressure value in the tank will press out the liquid nitrogen, transport it to the vicinity of the inlet and discharge port through the pipeline, open the inlet and discharge port, and the liquid nitrogen will be automatically sprayed out, or connect a metal hose to the target liquid nitrogen tank, after completing the filling, close the booster valve, open the venting valve, and then close the inlet and discharge valve.

This working principle allows the self-pressurized liquid nitrogen tank to achieve continuous and uninterrupted liquid discharge, which is of course better than the liquid nitrogen Zen Xing pump in the face of a large amount of liquid nitrogen output. Wang Bo.

Self-pressurized liquid nitrogen tank.

Self-pressurizingLiquid nitrogenThe principle of the can product:

It can be said that the self-pressurized Zheng Dichang liquid nitrogen tank has a wide range of applications, and is currently widely used in the tool and mold industry, animal husbandry, medicine, semiconductor, food, low-temperature chemical industry, and aerospace.

military and other industries and fields. It is understood that its principle is mainly to use a small amount of liquid nitrogen to produce gasification, increase the pressure in the liquid nitrogen container, so as to transport the liquid nitrogen in the container, in order to achieve the ultimate purpose of flexible use in the work.

Features of self-pressurized liquid nitrogen tank products:

The outer surface of this product has been polished, and its maximum working pressure is: exquisitely bright, convenient and flexible in operation, suitable for filling liquid nitrogen into liquid nitrogen biological containers and other cryogenic containers and other instruments. Only liquid nitrogen and liquid argon are allowed, and liquid oxygen is not allowed.

Liquid hydrogen and other flammable, explosive and toxic low-temperature gases shout the body. Vapor phase liquid nitrogen tank.

1.Inlet:When filling the liquid nitrogen container with liquid nitrogen, open the vent valve, close the booster valve, and then connect the metal hose to the inlet and discharge valve, and then open the inlet and discharge valve, you can fill the container with liquid, and close the inlet and discharge valve after filling.

Note that the liquid nitrogen filling should be controlled at about 90% and should not be too full.

2.Drainage:Close the vent valve, slightly open the pressure valve, here to keep observing, after the pressure valve is opened, with the increase in pressure in the tank to gradually reduce the opening and closing degree of the pressure of the booster valve.

Then pay attention to the pressure gauge, when the pressure gauge rises to or meets the use pressure, the preparation can be continuously discharged by opening the inlet valve.

The more you come into contact with the self-pressurized liquid nitrogen tank, the more you understand what important role it plays in the transfer of liquid nitrogen, and at the same time of replenishing liquid nitrogen anytime and anywhere, it also does not need manpower to worry about convenience, compared with the traditional liquid nitrogen filling method, the self-pressurized liquid nitrogen tank is much more convenient.

The work of the self-pressurized liquid nitrogen tank can be divided into two types, infusion of liquid nitrogen into other liquid nitrogen tanks and filling oneself with liquid nitrogen.

The working principle of delivering liquid nitrogen to other liquid nitrogen tanks is as follows: close the vent valve, open the pressure booster valve, and wait until the pressure gauge shows that the pressure is exceeded, and open the discharge high search valve to infuse liquid nitrogen normally.

To fill yourself, the principle is as follows: open the vent valve, connect the infusion metal Shifan ruler hose to the upper part of the inlet and discharge valve, open the inlet and discharge valve, you can add the liquid medium from the inlet and discharge valve, and after the filling is completed, close the inlet and discharge valve.

Liquid nitrogen** in the air, the main gas components contained in the air are divided into oxygen and nitrogen, of which, nitrogen accounts for about the air, and liquid nitrogen is liquefied nitrogen. Due to its ultra-low temperature properties, trillion-disordered properties, swelling properties, and suffocation properties, it is often used in industry. Moreover, at present, the application field of liquid nitrogen is becoming more and more extensive, and liquid nitrogen is a special industrial manufactured product.

Due to the peculiarities of liquid nitrogen, good preservation is required. The function of the liquid nitrogen tank is to preserve the liquid nitrogen and reduce volatilization. Therefore, no matter the size of the liquid nitrogen tank, it has the characteristics of good thermal insulation, sturdy and durable, and easy to use, so as to better meet the use.

You are too professional in this, you should be the knowledge of chemical principles!

1. When the self-pressurized liquid nitrogen tank is used as a liquid nitrogen transport tank, the tank should be upright and cannot be put down, and the pressure in the tank should be discharged after the liquid nitrogen in the tank is discharged, so as to avoid accidents during long-distance transportation. The drain valve and booster valve are to be closed. Keep the pressure gauge at 0.

2 During transportation, the orange must be placed firmly, although bumps will not lead to unexpected consequences, but the tank can be damaged by falling over.

The self-pressurized liquid nitrogen tank can store liquid nitrogen, and can fill liquid nitrogen biocontainers, in addition to liquid nitrogen, it can also contain liquid gases such as liquid oxygen bushes, so a little regret that cannot be loaded with samples is insignificant under a variety of advantages. What's more, using a self-pressurized liquid nitrogen tank to store and transport liquid nitrogen, even if it is a long time and long distance, is not afraid, because the volatilization is very small, but this does not mean that you don't need to pay attention to details, when using a self-pressurized liquid nitrogen tank to transport, you still have to pay attention to these:

1. When the self-pressurized liquid nitrogen tank is used as a liquid nitrogen transport tank, it is necessary to roll the wild cherry tree vertical tank body, not to put it down, and discharge the pressure in the tank after the liquid nitrogen in the tank is good, so as to avoid the occurrence of long-distance transportation. The drain valve and booster valve are to be closed. Keep the pressure gauge at 0.

2. During transportation, we must pay attention to the stability of placement, although bumps will not lead to unexpected consequences, but the tank dumping is likely to damage the tank.

3. The casters of the self-pressurized liquid nitrogen tank are convenient for the transportation of liquid nitrogen, but in the case of fixation, you must remember to fix the casters, otherwise the activity of the casters may cause the entire tank to topple.

It is equipped with a self-pressurizing device that passes gas into a liquid nitrogen tank by compressing gas to increase the pressure of a small amount of gas above the liquid level. 2.During the pressurization process, it is necessary to pay attention to the speed of the gas pressurization and slowly increase the pressure, especially when the liquid nitrogen tank is under negative pressure.

3.Ensure the stability and reliability of the self-pressurization design, and reduce the pressure fluctuations caused by gas pressure imbalance in the system during decompression. 4.

In the process of pressurization and decompression, it is necessary to strictly control the pressure of the reserve body in the gas in the tank to avoid the occurrence of problems such as gas overflow or insufficient pressure. Dear kiss, the above is mine, I hope these contents can help you, thank you for your understanding and support, I will continue to work hard.

The self-pressurized liquid nitrogen tank is mainly used to replenish the liquid nitrogen tank with liquid nitrogen equipment, the container is equipped with a safety valve, a pressure gauge, a liquid level gauge, and a caster at the bottom, which is very convenient for short-distance movement.

In addition, the product is made of imported austenitic stainless steel, the outer surface is polished, high-vacuum multi-layer insulation structure, the product structure is provided with liquid nitrogen gasification pressurization pipeline, the use of the heat of the container shell Huishou, so that a little liquid nitrogen pre-calendar produces hail pressure, and the liquid nitrogen is automatically output.

So what failures will occur during use? The following are the causes and treatment methods of the surface failure of the liquid nitrogen tank

Fault 1: The surface of the container is evenly covered with frost.

Possible cause: Impaired vacuum integrity.

Fault 2: The container has isolated frost spots.

Possible cause: The container may have been damaged, affecting the integrity of the insulation.

Fault three: The top of the container is covered with frost.

Possible cause: High usage of the product.

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