The invention relates to a deformation control device suitable for an LNG ship liquid cargo tank lap plate and a welding method. The device comprises a connecting rod and fixing ends installed at the two ends of the connecting rod and used for supporting the connecting rod, a plurality of threaded holes are formed in the connecting rod, stand columns with external threads are arranged in the threaded holes in a penetrating mode, and pressing blocks are arranged at the lower ends of the stand columns; the fixing end comprises a first clamping block and a second clamping block, the second clamping block is movably installed on one side of the first clamping block, the distance between the second clamping block and the first clamping block is adjustable, and a clamping opening used for fixing the fixing end is formed between the first clamping block and the second clamping block. In the welding process, the edge folding area of the strake is clamped through the clamping opening, and then the lap joint plate is pressed through the pressing block for welding. According to the deformation control device for the lap plate of the liquid cargo tank of the LNG ship, the lap plate can be tightly attached to the strake, on one hand, the lap plate is prevented from being deformed due to stress, and on the other hand, the requirement for zero-clearance welding between the lap plate and the strake can be met.

    本发明涉及一种适用于LNG船液货舱搭接板变形控制装置及焊接方法,该装置包括连接杆、安装在连接杆两端用以支撑连接杆的固定端,连接杆上设有若干螺纹孔,螺纹孔内穿设有带有外螺纹的立柱,立柱的下端设有压块;固定端包括第一夹持块、第二夹持块,第二夹持块活动安装在第一夹持块一侧,第二夹持块和第一夹持块之间的距离可调,第一夹持块和第二夹持块之间形成用以固定端固定的夹持口。焊接时通过夹持口夹住列板的折边区域,然后通过压块压紧搭接板进行焊接。通过本发明的LNG船液货舱搭接板变形控制装置可以将搭接板紧密贴合在列板上,一方面避免搭接板受到应力变形,另外还可以满足搭接板与列板之间零间隙焊接的要求。


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    Title :

    Deformation control device suitable for LNG ship liquid cargo tank lap plate and welding method


    Additional title:

    一种适用于LNG船液货舱搭接板变形控制装置及焊接方法


    Contributors:
    GAO SI (author) / ZHU HANFENG (author) / ZHU QIFENG (author) / ZHU WENXUE (author) / ZHOU YAFENG (author)

    Publication date :

    2022-01-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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