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Severe freezing at the liquid outlet of the liquid nitrogen storage tank

2017-10-16View Original

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Due to the irregular supply of liquid nitrogen, the liquid outlet remains open, which causes severe icing at the connection between the outlet pipe and the tank’s outer shell; the thickness of the ice layer is around 1 cm. Frost formation in the pipes further down occurs intermittently due to the user’s occasional use of the system. May I ask the experts and experienced professionals whether this phenomenon is normal? Has anyone encountered this? :handshake
Reply #22017-10-16
Freezing and frosting should be considered normal.
Reply #32017-10-17
It seems this phenomenon didn’t exist before; it only became more severe in these past few days.
Reply #42017-10-17
If the insulation is damaged or aged, it doesn’t matter much if some ice forms
Reply #52017-10-17
Huh? Does it mean air is getting into the vacuum layer, or somewhere else? . ? What phenomena and consequences would occur if this problem worsens?
Reply #62017-10-17
There is no vacuum here; it is generally made of polyurethane foam. What’s lacking is rubber-plastic insulation material, as rubber-plastic materials age more easily
Reply #72017-10-17
It is an automatic cooling phenomenon; normal
Reply #82017-10-17
Hello, ice or frost forming on the outlet pipeline is considered a normal phenomenon; it is influenced by the amount of flow; If the shell of the liquid nitrogen tank equipment freezes, that’s not good; it needs to be checked carefully
Reply #92017-10-17
If no gas is indeed being used, there should be no frost or ice formation on the liquid outlet pipeline of the storage tank. If frost is present and the customer is indeed not using any gas, it is recommended to check the pipelines and associated components for any signs of leaks, such as at the flanges and safety valves~~

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