Barrel inner wall heating frock

The utility model provides a method of barrel girth welding inner wall heating frock and use, belong to the machine -building field, in the aspect of the inner wall heating, solved the technological problem of barrel welding heating when relating to the barrel welding. Its structure contains top gas -supply pipe 1, a plurality of heating pipe 2, gas -supply pipe connecting plate 3, intake pipe 4, altitude mixture control pole 5, fastener 6, horizontal pole 7, bottom sprag pole 8, 9, two bottom dollies 10 of dolly connecting plate etc, on -the -spot installation during the use, fixed triangle -shaped structure is constituteed with bottom sprag pole 8 to bottom dolly 10, adopt the fastener to fix on altitude mixture control pole 5 and bottom sprag pole 8, height -adjusting adjusts 5 messenger top transported gas device on the pole to suitable position, adjust the heating pipe and reach the best with the interval that the barrel inner wall adds the hot spot, connect the intake pipe again. This frock can reduce defects such as bead crack in the barrel inner wall heating of different diameters, equipment can be dismantled, easy operation, and convenient to use has reduced the energy resource consumption.