The invention relates to a method for carrying out an LNG (Liquefied Natural Gas) ship ballast tank strength test in a dry dock state. The method comprises the following steps: determining a half-ship carrying state and an integrity requirement; obtaining basic data of the half ship; checking the positive pressure on the surface of the docking block in the state that water does not enter the dock through finite element calculation software; designing a temporary pipeline, a temporary sealing plate and a temporary channel; compiling a basic scheme; practice is carried out according to the scheme; after the basic scheme is executed, the cargo hold inner shell liquid cargo maintenance system is started; the basic scheme is adjusted, and a derivation scheme of the whole ship is provided. According to the method for carrying out the strength test on the ballast tank of the LNG ship in the dry dock state, the construction period of the LNG ship is greatly shortened, and the strength test on the ballast tank of the medium-large LNG ship can be completed in the dry dock state.

    本发明涉及一种干坞状态下开展LNG船压载舱强度试验的方法,包括以下步骤:明确半船搭载状态和完整性要求;获取半船的基础数据;通过有限元计算软件对船坞不进水状态下坞墩表面正压力进行校核;设计临时管路、临时封板、临时通道;编制基础方案;依照方案开展实践;基础方案执行结束后,货舱内壳液货维护系统开工;针对基础方案进行调整,提出整船的衍化方案。本发明提供了一种干坞状态下开展LNG船压载舱强度试验的方法,大大缩短LNG船舶的建造周期,使中大型LNG船压载舱强度试验能在干坞状态下完工。


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    Title :

    Method for carrying out strength test on ballast tank of LNG (Liquefied Natural Gas) ship in dry dock state


    Additional title:

    一种干坞状态下开展LNG船压载舱强度试验的方法


    Contributors:
    JIA YANGWEN (author) / DAI WEI (author) / HUANG YUNFENG (author) / ZHANG CHENJUN (author) / ZHANG LI (author) / PEI JUNLONG (author)

    Publication date :

    2023-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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