The invention discloses a pressure vacuum protection device of a chemical tanker and epoxypropane cargo hold and a using method. The device comprises a common pipe base installed at the top of a cargohold ventilation pipe, a first pressure safety valve installed on a first pipe opening of the common pipe base and a second pressure safety valve installed on a second pipe opening of the common pipebase. A locking device used for locking the opening and closing state of the second pressure safety valve so that the first pressure safety valve and the second pressure safety valve can be used alternately in the voyage of the chemical tanker loading different cargoes is installed on a base flange of the second pressure safety valve, and the horizontal side of the second pressure safety valve isconnected with a vacuum safety valve. The pressure vacuum protection device is simple in structure, convenient to install and use and high in reliability and safety, the pressure safety valve lockingdevice does not need to be integrally disassembled in the voyage of loading different goods, meanwhile, the pressure safety valve does not need to be disassembled and replaced, and the leakage dangeris reduced. Furthermore the pressure vacuum protection device has high reliability and high safety.

    本发明公开了一种化学品船兼装环氧丙烷货舱的压力真空保护装置及使用方法,所述装置包括安装在货舱通风管顶部的公共管座、安装在公共管座的第一管口上的第一压力安全阀以及安装在公共管座的第二管口上的第二压力安全阀,第二压力安全阀的底座法兰上安装有用以锁定第二压力安全阀的开关状态以使化学品船在装载不同货物的航次中第一压力安全阀和第二压力安全阀可以轮换使用的锁定装置,第二压力安全阀的水平侧连接有真空安全阀。本发明结构简单,安装、使用方便,在装载不同货品的航次中,无需整体拆卸本发明的压力安全阀锁定装置,同时不用拆卸更换压力安全阀,减少了泄露的危险,可靠性和安全性强。


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    Titel :

    Pressure vacuum protection device of chemical tanker and epoxypropane cargo hold and using method


    Weitere Titelangaben:

    化学品船兼装环氧丙烷货舱的压力真空保护装置及使用方法


    Beteiligte:
    SONG LIJUN (Autor:in)

    Erscheinungsdatum :

    2021-02-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS




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