Seeking advice on insulation methods for low-temperature adiabatic containers
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Running into a problem now? How can one distinguish the insulation method of a cryogenic container based on its appearance and other features? It is not specified in the equipment’s design drawings. I happened to come across a statement on a forum that read: “Vacuum powder consists of dried perlite filled in the interlayer of a low-temperature storage tank; the thickness of this interlayer is 200–300 mm, after which vacuum is applied, with a typical vacuum level of 2–5 Pa. It is mainly used for storing liquid oxygen, liquid nitrogen, liquid argon, and LNG.” Multi-layer winding involves using aluminum foil and fiber paper for wrapping in the interlayer of the low-temperature storage tank (typically 40 layers), with an interlayer thickness of 84–100 mm; thereafter, a high vacuum is created, with a vacuum level generally above 0.05 Pa. ”Does anyone know where the source is?
The original poster will understand once they look at GB/T 18442-2011 for low-temperature insulated pressure vessels.
Bro, can you tell me exactly where it is? I checked 18442.18443 as well, but couldn’t find it