Insulation issues for liquid nitrogen storage tanks, heat exchange systems, and pipelines!
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I was wondering if anyone here has experience in insulating liquid nitrogen tanks. Please share any solutions you have – I’d really appreciate it! Is it necessary to use a vacuum insulation layer? What standards are used to calculate the thickness of the vacuum insulation layer and the thickness of the outer shell? (Can double-layer insulation as specified in GB/T 8175 be used to calculate vacuum insulation?)
The storage tank has a diameter of 2000 meters and a height of 15 meters； The heat exchanger has a diameter of 1500* and a height of 30 meters!
Most liquid nitrogen cryogenic storage tanks adopt a double-layer design, with the interlayer insulated using perlite or insulating paper. Standard GB/T18442
Thank you! I am studying these standards. But how is the thickness of the vacuum insulation layer calculated? Are there any existing standards? GB/T8175 includes calculations for double-layer insulation, but it does not mention a vacuum insulation layer!
It features double-layer insulation; the interlayer is made of pearlescent sand or perlite, and vacuuming is also required. Generally, tank manufacturers provide relevant specifications for this – are you the owner or the manufacturer?
We want to handle the design part on our own! Can we get the manufacturer’s standards?