The insulation system of liquid nitrogen storage tank is critical to maintaining cryogenic storage. Due to the high volatility of liquid nitrogen, excellent insulation design can effectively reduce gas loss and energy consumption. High-quality thermal insulation materials and precise design reduce heat transfer, ensuring long-term storage of liquid nitrogen at stable temperatures and preventing unnecessary liquid evaporation.
How to keep warm
The efficient thermal insulation of liquid nitrogen storage tank mainly depends on advanced design and material choices to ensure that liquid nitrogen stabilizes for a long time.
The vacuum insulation design is the core of the storage tank insulation. The tank body adopts the inner and outer biliary double -layer structure, the inner and internal biliary storage liquid nitrogen, and the outer biliary and the inner tendon are vacuum and isolate the heat. The vacuum layer reduces thermal conductivity and convection, and maintains low temperature. Internal and external gallbladder is filled with insulation materials, such as expansion of perlite to further improve the thermal insulation effect. The neck tube adopts high -intensity glass reinforcement to enhance structural stability and reduce heat transmission.
The multi -layer insulation system further optimizes the thermal insulation performance of the tank. The inner orchids of the tank and the shell are used for foam polystyrene, glass wool and aluminum cotton cotton. These materials are not only lightweight but also have excellent thermal insulation performance, not easy to absorb water and aging, and effectively reduce the volatilization of liquid nitrogen.
The storage tank can maintain the stable temperature of liquid nitrogen for a long time, meet efficient storage needs, and effectively reduce the volatilization of liquid nitrogen.
Insulation temperature requirements
The insulation requirements of liquid nitrogen storage tank are to maintain the internal temperature between -150 ° C to -170 ° C. The range helps to effectively prevent liquid nitrogen frozen, and ensure that the storage tank is stable in the safe temperature interval. The natural temperature of liquid nitrogen is close to -196 ° C, and accurate temperature control is critical to the performance of the storage tank.
In order to achieve temperature control targets, storage tanks are usually equipped with advanced temperature control systems, which can monitor and adjust the internal temperature in real time. The storage tank can be maintained in the ideal temperature range throughout the use process, thereby effectively protecting the liquid nitrogen inside the tank and avoiding the damage and operational risk of equipment caused by too low temperature.
Precautions for thermal insulation
- Prevent frostbite: The temperature of the liquid nitrogen is extremely low. Direct contact should be avoided during operation.
- Reduce evaporation: Make sure that the storage tank is placed in a cool and ventilated place to avoid direct temperature and sunlight to maintain a low temperature state.
- Check the storage tank: Check whether the inner and outer gallbladder is intact before use, and confirm that there is no foreign body inside. After installing liquid nitrogen for 24 hours, check whether there is frosty.
- Filling restrictions: Only filling liquid nitrogen to prohibit other liquids from accidents.
- Regular cleaning: Wash 1-2 times a year to prevent stagnant water and mixed bacteria, and avoid corrosion of tank walls.
- Maintenance inspection: Regularly check the tank shell and vacuum exhaust port, and perform performance inspections when unused for a long time.
- Environmental control: The environment of the storage tank needs to be well ventilated, and the temperature remains below 50 ° C to prevent problems caused by high temperature or hypoxia.
The efficient insulation of liquid nitrogen storage tanks ensure the stable storage of liquid nitrogen at low temperature. Through high -quality thermal insulation materials and precise design, insulation measures not only significantly reduce energy loss, but also improve the overall performance of the storage tank. These advanced thermal insulation technologies provide long -term stability and efficient operation for storage tanks to ensure the effective utilization and operating cost of liquid nitrogen.
