快装锅炉本体构结见图1。原焊接工序是:先将筒体与后管板装配点固,采用埋弧自动焊在转台上焊接内环缝和外环缝,然后再装配点固前管板。此时因探臂已无法伸入筒体,因此只能采用手工焊接内环缝。前管板内环缝采用手工焊,为保证外环缝采用埋弧自动焊焊接时不烧穿、焊漏,需要开较大的坡口,因此手工焊工作量很大(需焊四遍以上),劳动强度也大。锅炉 Fast boiler body structure shown in Figure 1. The original welding process is as follows: the first tube and the rear tube plate assembly point solid, the use of submerged arc welding on the turntable welding inner ring seam and outer ring seam, and then re-assembly point solid tube plate. At this point because of the probe arm has been unable to reach into the cylinder, so only manual welding seam. The front tube plate inner ring seam by hand welding, in order to ensure the outer ring seam using submerged arc welding without welding, welding leakage, the need to open a larger bevel, so a lot of manual welding (to be welded more than four times ), Labor intensity is also large. boiler