Welding tool of boiler eccentric furnace pipe

Abstract

The invention discloses a welding tool of a boiler eccentric furnace pipe. The welding tool comprises a sleeve arranged on the furnace pipe in a sleeving manner, wherein the sleeve is provided with abracket extending towards the interior of a pipe cavity; the suspending end of the bracket is connected with the furnace pipe; the furnace pipe and the sleeve are eccentrically arranged; and the sleeve and a backflash chamber cylinder are concentrically arranged. The sleeve is provided and is adopted to carry out eccentric fixing on the furnace pipe; the eccentric direction and the eccentric distance are kept to be matched with the eccentric direction and the eccentric distance between the furnace pipe and the backflash chamber, so that arrangement of the sleeve and the cylinder core of the backflash chamber is ensured; under the action of a roller supporting driving mechanism, synchronous rotation of the sleeve, the furnace pipe, a front tube plate, a rear tube plate and the backflash chamber cylinder is ensured; during the rotating process, the position relation of the front tube plate and the backflash chamber cylinder is stable, so that a reliable and stable maintaining relation isprovided for welding of the front tube plate and the backflash chamber cylinder, and the welding quality of the front tube plate and the backflash chamber cylinder is ensured.

Description

technical field [0001] The invention relates to a welding tool, in particular to an auxiliary tool for welding an eccentric furnace of a boiler. Background technique [0002] In the prior art, the furnace and the shell of the boiler are two tubular components, and the positional relationship between the two after forming is that the core is axially parallel and spaced apart, that is, the so-called boiler shell and furnace. The relationship between them is eccentric arrangement. In fact, first of all, the re-combustion chamber and the boiler shell are arranged eccentrically with the tube cores parallel and the spacing. [0003] The return combustion chamber includes the front and rear tube plates 1 and 2 of the return combustion chamber at both ends, and one end of the furnace 4 is welded to the front tube plate 1, and the two are eccentrically arranged, that is, the front tube plate 1 has a relative circular shape. The eccentrically opened orifice in the center of the tube ...

AI Technical Summary

Problems solved by technology

For the welding between the components of the eccentric structure of the above-mentioned WNS type boiler liner, it is difficult to realize that the front tube plate 1 and the rear tube plate 2 welded with the corrugated liner 4 are rotated synchronously together with the back-combustion chamber cylinder 3, and the inner liner Due to the external force exerted on the front tube plate 1 due to its own weight, the tendency of misalignment between the periphery of the front tube plate 1 and the backfire chamber cylinder 3 cannot be avoided, and the welding quality is difficult to guarantee

Images