Ground that structure is only taken off in area buries formula feedwater socket joint formula welding steel pipe

The utility model belongs to the technical field of pipe connection structure, especially, relate to a ground that structure is only taken off in area buries formula feedwater socket joint formula welding steel pipe, including setting up tube end and the interface at steel pipe both ends, tube end's internal diameter is greater than the external diameter of interface, the interface of a steel pipe inserts the tube end of another steel pipe, its characterized in that is still including only taking off the structure, only take off the structure including keeping off the ring, the heat insulation, it sets up in the interface periphery to keep off the ring, be equipped with the mounting groove on tube end's the internal surface, the embedding has sealed rubber ring in the mounting groove, sealed rubber ring and mounting groove interference fit, be equipped with the heat insulation between the fender ring of tube end tip and interface, heat insulation and tube end tip fixed connection. The beneficial effects of th