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本文对真空粉末绝热低温液体贮槽内容器受外压失效的原因进行了探讨。制造过程中,在真空夹层充氮置换和气压试验时,要对内容器采取安全承受外压的保护措施。
In this paper, the reasons for the failure of the inner container of vacuum powder adiabatic cryogenic liquid storage tank by external pressure were discussed. During the manufacturing process, when the vacuum interlayer is filled with nitrogen and the pressure test is carried out, the inner container should be protected safely by the external pressure.