我们在清洗锅炉时,发现锅炉后端大多数烟道管头部(与炉体连接处)漏水。我们用电焊,把每一个烟道管头都焊一周,结果因连接处夹缝存有水垢,焊后仍漏水。由于锅炉后端空间很小,我们又无专用工具,要把水垢从夹缝里取出来很不容易。刘元章师傅自做了一个手动切削装置,把烟道管连接处(水垢存在处)切出一个槽,这样再焊,效果很好。手动切削装置工作原理如图所 When we cleaned the boiler, we found that most of the flue pipe head (connected to the furnace body) at the back of the boiler leaked water. We use electric welding, the pipe ends of each pipe are welded for a week, the result of the junction there are cracks in the cracks, after welding is still leaking. Due to the small back-end space of the boiler, we have no special tools, so it is not easy to remove the scale from the nip. Master Liu Yuanzhang made a manual cutting device, the flue pipe connection (scale where exists) cut a groove, so re-welding, the effect is very good. Manual cutting device works as shown