Welding device used for welding pressure container vertical type circular seam and welding method thereof

Abstract

The invention proposes a welding device and welding method for welding vertical girth seams of pressure vessels, including a base, a first switch is installed on the edge of the upper surface of the base, and the input end of the first switch is connected to an external power supply The output end is connected, and the middle chute of the base is provided with a sliding seat. This welding device is used for welding the vertical circular seam of the pressure vessel. The structure is simple, and the vertical circular seam welding is convenient for welding large equipment such as pressure vessels. The stability is improved, the sliding seat can be moved, which is convenient for hoisting and placing of the pressure vessel, and the pressure vessel can be limited by the fixed cover to ensure the stability of the welding operation, and at the same time improve the welding accuracy. The circular movement of the welding torch is used for welding and operation control Simple, abandoning the existing pressure vessel rotation method, avoiding the displacement of large-volume pressure vessels during rotation, ensuring the uniformity of welding, reducing the subsequent repair rate, and improving production quality and production efficiency.

Description

technical field [0001] The invention relates to the technical field of pressure vessel welding, in particular to a welding device and a welding method for welding vertical girth seams of pressure vessels. Background technique [0002] In the welding process of the pressure vessel weld, the vertical girth weld of the product head is very important to the pressure vessel. The pressure vessel produced by many pressure vessel manufacturers is bulky and heavy. When welding, the product The girth weld of the head is not allowed to be operated horizontally. At present, in the welding process of this type of vertical girth, enterprises generally use manual welding methods without the help of related auxiliary welding equipment, which not only reduces production efficiency and labor The strength is high, and it is difficult to guarantee the welding quality of the weld seam, many welding defects appear, the number of weld repairs is increased, the welding efficiency is low, and the pr...

AI Technical Summary

Problems solved by technology

[0002] In the welding process of the pressure vessel weld, the vertical girth weld of the product head is very important to the pressure vessel. The pressure vessel produced by many pressure vessel manufacturers is bulky and heavy. When welding, the product The girth weld of the head is not allowed to be operated horizontally. At present, in the welding process of this type of vertical girth, enterprises generally use manual welding methods without the help of related auxiliary welding equipment, which not only reduces production efficiency and labor The strength is high, and it is difficult to guarantee the welding quality of the weld seam, many welding defects appear, increase the number of weld repairs, the welding efficiency is low, and the production is inconvenient

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