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 don’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:
Email: tcln2container@126.com
WhatsApp: +8618903712477
Official website:
https://www.cryogenicstoragetank.com/YDD-Series-Biobank-Tanks.html
bio-equip.cn
Henan Tianzhidao Biological Technology Co., Ltd. is a China-based supplier of laboratory products and technical services dedicated to the life science sector. Founded in 2016 and headquartered in Zhengzhou, China, the company serves a diverse client base across academia, research institutions, public health (CDC), livestock and agriculture, as well as the pharmaceutical industry.
We provide a comprehensive range of services, including biotech research and development, technical consulting, technology transfer, and import/export services for goods and technology. Our core product portfolio covers molecular biology reagents, immunohistochemistry (IHC) reagents, antibodies, laboratory instruments, and cryogenic liquid nitrogen tanks. This integrated offering effectively meets the diverse needs of life science laboratories for reagents, consumables, and equipment.
Furthermore, Henan Tianchi Biotechnology Co., Ltd. serves as an authorized marketing and promotion partner for TcCryo.
About TcCryo
TcCryo offers a comprehensive range of cryogenic products, including laboratory liquid nitrogen dewars, biological sample storage systems, liquid nitrogen containers for animal breeding and artificial insemination, dry shippers, liquid nitrogen supply tanks, and customized cryogenic equipment.
The brand focuses on practical product design, manufacturing quality, and application-specific solutions to meet the needs of laboratories, biobanks, livestock breeding facilities, distributors, and other B2B customers.
Manufacturing & Quality Control
The company's manufacturing capabilities cover vessel fabrication, vacuum insulation processing, and surface finishing. Its quality control processes include helium mass spectrometry leak testing, vacuum inspection, static evaporation rate testing, and final product inspection.
These manufacturing and inspection capabilities support consistent product quality and performance across its cryogenic equipment range.
Global B2B Services
TcCryo supports international customers through standard product manufacturing, OEM/ODM services, customized production, and technical product selection assistance. The company works with distributors, wholesalers, importers, and end users to provide cryogenic storage products suited to different applications and requirements.
Company Information
Company Name: Henan Tianchi Cryogenic Machinery Equipment Manufacturing Co., Ltd.
Brand: TcCryo
Brand Ownership: Registered trademark owner in China
Business Type: Manufacturer
Main Business: Liquid Nitrogen Storage Containers & Cryogenic Equipment
Manufacturing Experience: Over 20 Years
Official Website: https://www.cryogenicstoragetank.com/