The vacuum cryogenic storage tank adopts two liquid inlet methods at the top and bottom, which can be selected and used according to the actual situation.

　　The inner tank is equipped with a double safety system device composed of a safety valve and a bursting disc. Under normal use, one set is in working state and the other is in standby state. If the working safety valve or bursting disc takes off, Immediately open the manual pressure relief valve to relieve the pressure below the maximum working pressure of the storage tank, and at the same time quickly switch the safety device to the standby system through the manual handle, thereby effectively ensuring the safety of the storage tank. This combination valve is composed of safety valve, explosion-proof device, blow-off valve and three-way valve, which not only reduces pipeline welding, but also has a good fire-proof and anti-static structure. In addition, the safety explosion-proof film set on the shell is fully guaranteed This improves the safety and reliability of the entire equipment.

　　The low-temperature pipeline adopts centralized lead, which is convenient for operation and control, and the lead-out adopts a dura tube structure to meet the requirements of low temperature and reduce the stress caused by thermal expansion and contraction of the pipeline to ensure the safety of the storage tank.

　　During normal operation, the cryogenic liquid storage tank will automatically adopt a self-pressurizing system to stabilize its own pressure, thereby effectively ensuring the normal use of users.

　　The vacuum valve is sealed with three "O" rings, which effectively guarantees the reliability of the interlayer seal, and is made of all stainless steel and has a small size.

　　The unique craft manhole design ensures the cleanliness of the interior when the inner container is closed.

　　Imported vacuum isolation valves and imported vacuum gauges are used on the cryogenic liquid storage tank, which improves the measurement accuracy of the vacuum degree of the interlayer of the storage tank, prolongs the service life of the storage tank, and improves the quality of the storage tank.

　　The domestic high-quality paint is used on the cryogenic liquid storage tank, which not only reduces the corrosion of the atmosphere on the surface of the storage tank, but also stabilizes the vacuum degree of the interlayer and improves the taste and quality of the product itself.