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发明公开
CN109687337A 一种防焊接变形的法兰结构和一种GIS壳体 无效 - 驳回

一种防焊接变形的法兰结构和一种GIS壳体
摘要：
本发明涉及一种防焊接变形的法兰结构和一种GIS壳体，GIS壳体包括筒体以及与筒体的一端焊接的法兰结构，法兰结构包括法兰部分和管体部分，法兰部分与管体部分的连接处设置有防变形支撑部分。焊接端与法兰部分间隔一定的距离设置，在对法兰结构进行焊接时，热量需要传输一定的距离才能到达法兰部分，就能够减少焊接端处因焊接产生的热量对法兰部分的影响。并且，防变形支撑部分能够防止焊接端受热冷却后收缩而造成法兰部分倾斜。因此，该法兰结构重点关注形状及尺寸，从优化结构设计方面减少焊接变形，不仅不影响法兰结构的使用，而且可以实现焊前加工，大幅度降低焊接的变形量。
摘要（英）：

The invention relates to an anti-welding deformation flange structure and a GIS shell, wherein the GIS shell comprises a cylinder body and the flange structure welded with one end of the cylinder body; the flange structure comprises a flange part and a pipe body part, and an anti-deformation supporting part is arranged at the joint of the flange part and the pipe body part; the welding end is arranged at a certain distance from the flange part; when the flange structure is welded, heat needs to be transmitted for a certain distance to reach the flange part, so that the influence of the heat generated by welding at the welding end on the flange part can be reduced. And the anti-deformation supporting part can prevent the flange part from inclining due to shrinkage of the welding end after being heated and cooled. Therefore, the flange structure focuses on the shape and the size, the welding deformation is reduced from the aspect of optimizing the structure design, the use of the flangestructure is not influenced, the pre-welding processing can also be achieved, and the welding deformation is greatly reduced.

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