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With the development of science and technology, using cryogenic tank at ordinary pressure to store materials becomes increasingly sophisticated. There are more and more domestic constructions of cryogenic tank at ordinary pressure towards large-scale development. Compared with other storage methods, ordinary-pressure tank has many advantages. Because of lower storage pressure, our cryogenic tanks are much safer than vacuum tanks and spherical tanks which realize large-scale development with the advantages of little occupying area, low cost of storage and construction, simple storage structure and processes. The common storage media include LNG（-162℃）、liquid oxygen（-183℃）、liquid nitrogen（-196℃），liquid argon（-186℃）、liquid ethane（-89℃）、liquefied ethylene（-104℃） etc.
Design feature:
 Our devices adopt flat-base, arch-covering and vertical double-layer structure, with perlite filling in mezzanine in order to provide heat insulation and nitrogen protection. Moreover, we install inner and outer breather valves and relief valves in case of emergency to insure safe running.