The invention discloses a construction method for segmented key nodes of an LNG (Liquefied Natural Gas) ship. The construction method comprises the following steps: manufacturing a jig frame; knocking a sample and punching points on the rotary circle template of the jig frame; the inner longitudinal wall plate is hung on the horizontal jig frame, the plate edge of the inner longitudinal wall plate is aligned with the sample punching point on the circle turning template, and then the inclined side plate is hung on the circle turning jig frame and is in butt joint with the inner longitudinal wall plate; the inclined side plate and the rounding template are fixed in a spot welding mode, and a butt joint seam between the inclined side plate and the inner longitudinal wall plate is welded through a full-automatic welding machine; a plurality of horse plates are mounted on the free edges of the inclined side plates; and other components on the sections are sequentially installed, and the horse plates are dismantled after installation is completed. The special jig frame is manufactured and is matched with the horse plate to further fix the edge of the inclined side plate, so that the inner longitudinal wall plate and the inclined side plate can be ensured to be jointed, and the overall deformation is controllable in the subsequent hoisting process.
本发明公开了一种LNG船分段关键节点建造方法,包括以下步骤:制作胎架;在胎架的转圆模板上敲样冲点;将内纵壁板吊放到水平胎架上并使其板边缘与转圆模板上的样冲点相对齐,再将斜旁板吊放到转圆胎架上并与内纵壁板相对接;将斜旁板与转圆模板进行点焊固定,使用全自动焊接机对斜旁板与内纵壁板之间的对接缝进行焊接;在斜旁板的自由边安装多个马板;陆续安装分段上的其他构件,安装完成后拆除马板。本发明通过制作一个专用胎架,并配合马板进一步固定斜旁板边缘,可以保证内纵壁板和斜旁板拼板和后续吊装过程中整体变形可控。
Construction method for segmented key nodes of LNG (Liquefied Natural Gas) ship
一种LNG船分段关键节点建造方法
2024-03-26
Patent
Elektronische Ressource
Chinesisch
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