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公开(公告)号:US20210396353A1
公开(公告)日:2021-12-23
申请号:US16904548
申请日:2020-06-17
申请人: China Energy Investment Corporation Limited , National Institute of Clean-and-Low-Carbon Energy
发明人: Xianming Li , Pingjiao Hao , Edward Youn , Anthony Ku , Jerad Allen Stager , Noam Hart , Ashish Alvin Prakash
摘要: The present disclosure provides a system for managing a pressure in an underground cryogenic liquid storage tank and a method for the same. The system includes: a storage tank, which is used for containing cryogenic liquid and is buried underground; an internal pump, which is located below a liquid level of the cryogenic liquid; an evaporator, provided with an upstream end which is in communication with a discharge end of the internal pump and a downstream end which is in communication with a head space via a vapor delivery line; a control valve, which is disposed on the vapor delivery line downstream of the evaporator; and a flow limiter, which is disposed on the vapor delivery line upstream of or downstream of the control valve. The present disclosure can realize efficient pressurization to the storage tank so as to prevent collapsing of the storage tank.