本专利是关于管系是一种管子对接环缝焊接装置,尤其对蛇形管管子对接(如过热器)环缝更为适宜。近年来要求蒸汽发生器的管束增加表面面积,以致在这些管束中将管子布置得相互靠得很紧近,并将管子弯曲成蛇形,以达到在有限的空间尽可能地增加表面面积。制造这样管束的唯一方法是将管子对接接长,再加以弯曲成管束样式。但由于管子的长度关系势必需要很大的工作场地,才能容纳来回 This patent is about the pipe system is a pipe butt joint girth welding device, especially for the snorkel pipe docking (such as superheater) girth more appropriate. In recent years, the tube bundle of steam generators has been demanded to increase the surface area so that in these tube bundles, the tubes are arranged close to each other and the tube is bent into a serpentine shape so as to increase the surface area as much as possible in a limited space. The only way to make such a tube bundle is to butt the tube length and bend it into a tube bundle style. However, due to the length of the tube relationship is bound to require a large workplace, to accommodate back and forth