Dome-based cyclic inert sealing system for external floating roof tank and QHSE storage and transport method thereof

    公开(公告)号:US10905908B2

    公开(公告)日:2021-02-02

    申请号:US15885841

    申请日:2018-02-01

    Applicant: Qiangdan Sun

    Abstract: A dome-based cyclic inert sealing system for an external floating roof tank includes the external floating roof tank, a dome structure, an inert sealing pipeline, and a gas source servo device; wherein the dome structure is formed by a top portion of a tank wall of the external floating roof tank for sealing; the dome structure together with an internal wall of the external floating roof tank, a floating plate and a sealing device form a gas phase space which is isolated from atmosphere, so as to fill the gas phase space with an inert sealing medium; the inert sealing medium is a gas fire-fighting medium used in a suffocation fire-fighting method; the gas source servo device is connected to the gas phase space through the inert sealing pipeline and communicates through a valve for feedback-controlling states of the inert sealing medium in the gas phase space.

    Circulating inert-gas seal system based on gas-supply servo device and QHSE based storage and transportation method

    公开(公告)号:US20180216784A1

    公开(公告)日:2018-08-02

    申请号:US15936432

    申请日:2018-03-27

    Applicant: Qiangdan Sun

    Abstract: A circulating inset-gas seal system based on gas-supply servo device and QHSE based storage and transportation method are provided. The gas-supply servo device includes a servo constant pressure unit including: inlet gas compressors a charging check valve, a gas supply container and a degassing valve control unit which are connected in sequence and communicated and controlled by a one-way valve. According to a preset gas pressure of the gas phase space in the material container, a inert sealing medium filled in the material container group is received, stored and released via an inerting pipe to form a station-type circulating inert seal system. A multi-group circulating inerting system cooperates with a mobile material container for self-sealing loading and unloading, which is capable of realizing a QHSE storage and transportation system with no gas phase emission.

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