As we all know, the storage modes of liquid nitrogen tanks can be divided into two types according to sample storage requirements: gas phase and liquid phase, that is, soaking in liquid nitrogen and storing in nitrogen. In order to make it easier for users to distinguish between the two, regardless of industry or brand, they are accustomed to using storage modes to identify them. Liquid phase storage is liquid phase liquid nitrogen tanks, and gas phase storage is gas phase liquid nitrogen tanks. This is also their main way of distinguishing themselves!
Of course, there are other differences besides this, letâ??s introduce them one by one.
1. Model differences:
Including capacity size and national standard naming.
The liquid phase liquid nitrogen tank has a capacity range of 1-175 liters and is named YDS. The national standard stipulates that the material is aluminum alloy.
The gas phase liquid nitrogen tank has a capacity range of 350-1800 liters and is named YDD. The material specified by the national standard is stainless steel.
For user use, just select the appropriate model and type based on the number of samples.
2. Mode differences:
Liquid phase liquid nitrogen tank, the sample is immersed in liquid nitrogen;
The gas phase liquid nitrogen tank meets both liquid phase and gas phase modes. There is a liquid nitrogen storage area at the bottom of the tank to provide liquid nitrogen to the sample area. Note: Vapor phase storage also requires supplementing liquid nitrogen.
3. Management differences:
Liquid-phase liquid nitrogen tanks have a wide range of uses and are relatively small in size. Sample classification management relies on buckets and freezing racks. There is no intelligent control and requires manual labor.
Regardless of the size of the gas-phase liquid nitrogen tank, it is equipped with an intelligent control system that can display the internal temperature, perform relevant alarms, and automatically replenish liquid nitrogen.
In biological sample centers or scientific research institutions, there are a large number of cells, strains, vaccines and other samples that need to be cryopreserved. The scientific research of these samples is of great significance, and their safety cannot be ignored. In addition, there are requirements for batch management and data collection. Vapor phase liquid nitrogen tanks are often chosen over aviation aluminum Dewars. Vapor-phase liquid nitrogen tank, also known as "stem cell liquid nitrogen tank", is named after it is often used to establish stem cell banks. It is different from ordinary liquid nitrogen containers. It has two storage modes: gas phase and liquid phase. The sample storage method is unconventional and its working principle is break the usual. Sample storage methods in gas phase liquid nitrogen tanks: Partition management, gas phase preservation! The inner tank of the stem cell liquid nitrogen tank is divided into two areas. The upper area is for samples, which is the storage area for stem cells, embryos, bacteria, etc.; the lower area is for liquid nitrogen storage only and does not contain any samples. The bottom position, which is the liquid nitrogen storage area, is equipped with an evaporator to provide evaporated nitrogen for sample storage to cool down. The sample is only "close" to the liquid nitrogen, but does not touch it, and the volatilized low-temperature nitrogen is used to store the cells. Working principle of gas phase liquid nitrogen tank: The principle is actually very simple, such as the use of liquid nitrogen evaporation cooling mentioned above! When the nitrogen in the sample storage area is insufficient to support the sample demand, the bottom evaporator starts working to supply liquid nitrogen to the upper part. This has the advantage of avoiding sample cross-contamination. The reason why I donâ??t mention its other storage mode - liquid phase is because the liquid nitrogen reserve in the container is large, much higher than that of conventional liquid nitrogen containers, and the evaporation loss of stainless steel is higher than that of aluminum alloy. When storing in liquid phase, replenish the liquid. Frequent and troublesome, difficult to use, only gas phase storage is recommended. In addition, the gas-phase liquid nitrogen tank also has high dual-gallery vacuum + high thermal insulation performance, which reduces heat conduction, reduces the evaporation rate of liquid nitrogen, and maintains stable pressure inside the tank. The built-in intelligent control management system is used for real-time detection and abnormal warning of temperature, pressure and liquid level to ensure the stability of the tank and the safety of stem cells. If you have any needs, please contact KGSQ liquid nitrogen tank:
As we all know, liquid nitrogen is a low-temperature liquid and is volatile. Laboratories usually use the low temperature of liquid nitrogen to preserve experimental samples. The use of liquid nitrogen tanks can effectively reduce the volatilization of liquid nitrogen, but over time during use, the liquid nitrogen gradually decreases. If cell samples are stored below the level of liquid nitrogen or within the gas phase far away from the tank mouth, it is safe for the samples not to be affected by temperature fluctuations. However, when the liquid nitrogen is less than 1/3 of the total amount, the vaporization time of the liquid nitrogen will increase, and the temperature at the top of the liquid nitrogen tank will rise rapidly as the lid is opened, putting cell activity at risk. During this period, if the liquid nitrogen is not replenished in time, or if the liquid nitrogen is completely evaporated before being replenished, and the temperature of the liquid nitrogen tank rises to normal temperature, the cell samples will not only be damaged, but will most likely die! In order to avoid such problems, laboratory users often use YDD cell bank liquid nitrogen tanks, also known as stem cell liquid nitrogen tanks, to preserve cells and freeze semen samples. The YDD stem cell liquid nitrogen tank itself has an intelligent monitoring and management system. Its functions cover liquid level monitoring. In addition to displaying the liquid level in real time, when the liquid level is lower or higher than the set value, an audible and visual warning will be issued, accompanied by a text message. Send and never miss a message, even remotely. If liquid nitrogen is not added in time, this function is triggered and the manager will receive relevant prompts. Samples will not be affected for a short period of time. In addition, the YDD stem cell liquid nitrogen tank supports two storage modes: gas phase and liquid phase. When using the gas phase mode to store biological samples, the bottom liquid nitrogen volatilizes into nitrogen gas and then supplies the top sample. Liquid nitrogen is not directly related to the sample, and liquid nitrogen cannot soak the sample. , the sample may be damaged. However, in order to ensure the safety of cell samples, it is recommended that you regularly observe the use of liquid nitrogen and refill the jar with liquid nitrogen in time! If you have any needs, please contact KGSQ liquid nitrogen tank:
Currently, the methods of cell preservation are refrigerator and liquid nitrogen. When it comes to long-term storage, liquid nitrogen wins. However, conventional liquid nitrogen tanks need to constantly detect the liquid level, and the cells cannot be stored higher than the liquid nitrogen level, which is not conducive to long-term storage of cells. However, the "stem cell liquid nitrogen tank" that breaks the rules can do it! For long-term storage of large quantities of dry cell samples, it is ideal to use stem cell liquid nitrogen tanks by default. Why? 1. Storage temperature is -150~-196â?? For cells, the more comfortable storage temperature is -150â??~-196â??. Conventional liquid nitrogen tanks only have a temperature option of -196â??. Samples at this temperature are not in danger. The storage temperature of stem cell liquid nitrogen tanks changes with the sample area. The temperature difference in each storage area is 10�°C, which provides more options for cells. You can choose a more suitable temperature for cells to store. 2. Prevent pollution Another important point in cell cryopreservation, stable storage time and how to prevent contamination during storage. To stabilize the storage time, the stem cell liquid nitrogen tank adopts the characteristics of vacuum multi-layer insulation, electronic temperature control and liquid nitrogen dispersion, making the storage tank intelligent cooling and constant temperature process uniform and stable. To prevent storage contamination, you must know that cells become contaminated because they are in direct contact with liquid nitrogen. First, because the cryopreservation tube is not well sealed, liquid nitrogen enters through the gap. After taking out the test tube, there is a temperature difference and pressure difference between the inside and outside. Under the combined action of temperature and pressure, the tube explodes. Second, bacteria will enter the liquid nitrogen tank after it has been used for a period of time. These bacteria are likely to flow into the freezing tube with the liquid nitrogen and contaminate the sample. Stem cell liquid nitrogen tanks can prevent contamination because they can store liquid nitrogen and cells separately, avoiding direct contact between the two. At the same time, they can also use the low-temperature environment formed by the evaporation of liquid nitrogen for storage to avoid pipe explosions and cross-contamination. risk.
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Features: High strength and high corrosionproof, provides long service life and convenient to fill and clean. It provides wide applicability and can be widely applied for packaging in industries such as chemical engineering, petroleum, medicine and food etc. Seal liquid test:Put the sealed barrel with liquid upside down or tap,the seal is at the lowest position,and no leakage within 24 hours. The standard specifies blow-moulding technology requirements of the barrel, test methods and the rules and symbols, packaging, transporting and storage. This standard applies to polyethylene as the main raw material, barrels production through automatic blow molding machine,and this type of blow molding barrel is mainly used for solids or chemical products. We also can help to change any design as your requirements. such as size,weight,color,capacity ect.
Stem cells are cells with the ability to self-replicate and differentiate into multiple directions. Under certain conditions, they can differentiate into cells with multiple functions and have the ability to repair various tissue functions and regenerate organs. Therefore, they are also called "universal cells." Such important stem cells can only play a greater role if they are preserved intact. Stem cell storage tanks are a common storage method for preserving stem cells. Using liquid nitrogen to place stem cells in a low-temperature environment can effectively extend the storage time and maintain their vitality and function. Since different users have different amounts of stored stem cells, there are three storage tanks to choose from: 1. For liquid phase storage of hundreds or thousands of stem cells, YDS series aviation aluminum liquid nitrogen tanks can be selected; 2. For gas phase storage of thousands of stem cells, small gas-liquid phase stem cell storage tanks can be used, which are also made of aviation aluminum; 3. If the number of stem cells exceeds 10,000, it is more appropriate to use a gas phase stem cell storage tank. Each of these stem cell storage tanks has its own advantages. Liquid phase storage can maintain a constant temperature of -196�°C, but they lack intelligent management. The small gas-liquid phase storage tank is a mini version of the YDD storage tank. It has the same gas-liquid phase dual mode, intelligent management of samples, automatic replenishment and alarm. In addition, the use of aviation aluminum materials with stronger thermal insulation and lighter weight also combines the advantages of YDS. Therefore, when storing stem cells, you must choose an appropriate storage tank based on the number of cells and storage method.
The liquid nitrogen tank for cell storage is designed for laboratory users. It is a large-capacity low-temperature liquid nitrogen container that can efficiently store biological samples. Made of aviation aluminum, the liquid nitrogen has a low volatility, good thermal insulation performance, and takes up less space. It is an ideal choice for laboratory professionals and can meet different needs. Liquid nitrogen tanks for cell storage have many advantages. Here is a detailed introduction for you: 1. Durability: Made of corrosion-resistant and thermally-insulating aviation aluminum materials, it can resist the influence and damage of the external environment. At the same time, it undergoes strict quality inspection and vacuum testing before leaving the factory to ensure that it meets the standards in various performance indicators. 2. Large-capacity storage space: With a large capacity of 30-175 liters, it is suitable for long-term stable storage of a large number of samples to meet the needs of scientific research experiments. 3. Large-caliber design: The large-caliber design of 125mm, 127mm and 216mm is convenient for sample storage, while maintaining low liquid nitrogen consumption and providing more stable storage conditions. 4. Wide range of applications: Suitable for the preservation of a variety of biological samples, such as cell and tissue samples, microorganisms, seeds, embryos and sperm, etc., as well as for deep freezing treatment of parts and components, etc., with wide application value. 5. Safety: It can be configured with an intelligent monitoring system to achieve remote monitoring, and is equipped with a safety lock cover to prevent others from opening it without authorization, ensuring the safety of cell samples in the container. 6. It can accommodate a large number of cryopreserved samples: It is equipped with a cryopreservation rack and a cryopreservation box, which can accommodate more than 750 2ml cryopreservation tubes, and can reach up to about 6,000. Therefore, due to its unique advantages, the liquid nitrogen tank for cell storage has a wide range of application value in scientific research experiments and industrial production.
At present: liquid nitrogen tanks are common low-temperature containers in laboratories and are often used to preserve specimens, samples, cells, etc., which require the constant temperature characteristics of liquid nitrogen tanks. Speaking of which, here comes the question. Many people will ask what size of liquid nitrogen tank should be used in scientific research laboratories? Laboratory liquid nitrogen tanks are generally larger than 30 liters. There are two reasons: 1. Consider capacity The capacity of liquid nitrogen tanks ranges from 2 to 175 liters. Different capacities can store different numbers of samples. The larger the capacity, the more samples can be stored. For laboratories, there are many people who freeze samples, with a wide variety and large quantities. Therefore, it is recommended to choose a jar of more than 30 liters, which can store a variety of samples without the need for frequent refills. 2. Consider caliber There are 6 options for liquid nitrogen tank diameter,50mm,80mm, 125mm, 127mm,210mm,216mm; There are many types and large quantities of samples stored in the laboratory. Freezing racks are often used for matching. If the diameter is too small, it will not fit in. Therefore, it is recommended to use a diameter of 125mm or above. A larger diameter makes it easier to take samples and is used with a freezing box. More samples can be saved. To sum up, liquid nitrogen tanks used in laboratories generally have a capacity of more than 30 liters and a diameter of more than 125mm. But the important thing is to choose based on your actual needs. If you have any needs, please contact KGSQ liquid nitrogen tank:
The liquid nitrogen tank is a low-temperature container that can only store liquid nitrogen and cannot store other liquids. It is mainly composed of inner and outer gallbladders, neck tubes, neck plugs, and buckets. They play different functions in different positions. So what functions does our liquid nitrogen tank neck plug have? What will happen if we accidentally forget to cover the neck plug during operation? You should know that the neck plug is made of polyurethane foam and is used to block the neck of the liquid nitrogen container to reduce the evaporation of liquid nitrogen and play a role in preserving liquid nitrogen. It is light and pressure-free, not easy to break, does not fall off, and can also fix the bucket without adsorbing liquid nitrogen. If you forget to cover the neck plug during use,there will be three situations,the third situation is dangerous. 1. Liquid nitrogen volatilizes in large quantities Liquid nitrogen is a low-temperature liquid that is easily volatile at -196�°C.It will evaporate more quickly when exposed to heat. The liquid nitrogen tank is designed to better isolate heat,so that liquid nitrogen can be stored for a long time.The neck plug is made of polyurethane foam, which is not easy to break and has good thermal insulation properties and can isolate most of the heat. If you forget to cover the neck plug,hot air will enter through the mouth of the tank and accelerate the evaporation of liquid nitrogen.If there are samples stored in the tank,the safety of the samples will be affected and the samples may become inactive. Therefore,when we find that we have forgotten to cover the neck plug,we must first measure the height of the liquid nitrogen in the tank,refill it,and then cover the neck plug. 2. Liquid nitrogen will be contaminated Another function of the neck plug is to prevent impurities or bacteria from falling into the tank. If you forget to cover the neck plug, bacteria and impurities will inevitably fall into the liquid nitrogen tank and contaminate the liquid nitrogen and stored biological samples. 3. Decreased indoor oxygen content Usually, liquid nitrogen tanks are placed indoors. Liquid nitrogen will volatilize more quickly when heated. If the room is not well ventilated, the nitrogen content in the air will increase and the oxygen content will decrease, which may cause the risk of "suffocation". Therefore, Liquid nitrogen tanks stored indoors must be well ventilated. If you have any needs, please contact KGSQ liquid nitrogen tank:
