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Full-position water-cooled wall tube simulated welding frame and simulated welding method

A water-cooled wall tube, all-position technology, applied in the direction of welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problem of welding skills training effect for workers who cannot weld, have a single structure, and cannot simulate the small spacing between water-cooled wall tubes Welding environment and other problems can reduce the risk of boiler "explosion", solve the problem of single position and angle, and improve the qualified rate of welding joints

Pending Publication Date: 2020-03-17
国电电力邯郸东郊热电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the training of welding technicians in the power plant industry adopts cross-barrier welding frames, which have a single structure and cannot simulate the welding environment with small spacing between water-cooled wall tubes in actual welding operations, and thus cannot effectively train the welding skills of welders

Method used

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  • Full-position water-cooled wall tube simulated welding frame and simulated welding method
  • Full-position water-cooled wall tube simulated welding frame and simulated welding method
  • Full-position water-cooled wall tube simulated welding frame and simulated welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] When performing welding training, take the working face of the second pipe group as an example, and perform a 45° pipe butt oblique welding position (6G welding position). Such as figure 2 As shown, in the first step, the height adjustment sleeve 4 in the full position adjustment arm 12 is arranged on the column 2, and the position of the height adjustment sleeve 4 is moved up and down according to the height of the welder and the welding angle to determine the best welding position. It is fixed by height adjustment lock nut 3. The cooperation of the height adjustment sleeve 4 and the height adjustment lock nut 3 can not only ensure that welding technicians perform welding work at the optimum height position, but also avoid welding quality problems caused by the up and down displacement of the welding frame during the welding process. In the second step, the fixed platform 18 of the working surface is connected with the full-position adjustment arm 12 via the horizont...

Embodiment 2

[0045] When the pipe fittings to be welded are welded at the vertical position (2G) of the horizontal plane, in the first step, the height adjustment sleeve 4 in the full position adjustment arm 12 is set on the column 2, and the full position is adjusted according to the height of the welder and the welding angle Adjust the height of the arm 12 on the column 2. After determining the proper height of the full position adjustment arm 12, it is fixed by the height adjustment lock nut 3. In the second step, the fixed platform 18 of the working surface is connected with the full-position adjustment arm 12 via the horizontal connection sleeve 10, and the horizontal connection sleeve 10 is connected with the 0° fixing hole 6, and the full-position adjustment arm 12 and the working surface are fixed by the horizontal adjustment bolt 9. Fixed platform 18. The third step is to place one end of the fixed test piece to be welded on the pipe fitting fixing angle iron 16 in the centralize...

Embodiment 3

[0047] When the pipe fittings to be welded are welded at the pipe butt joint horizontal position (5G), in the first step, the height adjustment sleeve 4 in the all-position adjustment arm 12 is set on the column 2, according to the height of the welder and the actual welding position Adjust the height of the full position adjustment arm 12 and the column 2. After determining the proper height of the full position adjustment arm 12, it is fixed by the height adjustment lock nut 3. In the second step, the fixed platform 18 of the working surface is connected with the full-position adjustment arm 12 via the horizontal connection sleeve 10, and the horizontal connection sleeve 10 is connected with the 90° fixing hole 8, and the full-position adjustment arm 12 and the working surface are fixed by the horizontal adjustment bolt 9 Fixed platform 18. The third step is to place one end of the spot-fixed test piece to be welded on the pipe fitting fixing angle iron 16 in the centralize...

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Abstract

The invention relates to a full-position water-cooled wall tube simulated welding frame and a simulated welding method, and belongs to the technical field of welding. The full-position water-cooled wall tube simulated welding frame and the simulated welding method solve the problem of poor welding due to the fact that a welding person is unfamiliar with a welding position and a welding technologyin an existing water-cooled wall tube welding process. The full-position water-cooled wall tube simulated welding frame comprises a base, a height adjusting assembly, an angle assembly, a connecting assembly, a fixing assembly and a working face fixing platform, wherein the height adjusting assembly comprises a stand column, high-low adjusting locking nuts and a high-low adjusting sleeve; and theangle assembly comprises a 0-degree fixing hole, a 45-degree fixing hole and a 90-degree fixing hole. According to the full-position simulated welding frame and the using method thereof, the welding technology of a welding technical worker is improved, the porosity, the slag inclusion rate and the crack defect rate of a welded junction are effectively reduced, and the yield of the crack welded junction is improved.

Description

technical field [0001] The invention relates to the field of welding frame and welding technology, in particular to an all-position water-cooled wall pipe simulation welding frame and a simulation welding method. Background technique [0002] With the rapid development of the electric power industry, the single-unit capacity of thermal power units at home and abroad continues to increase, and the test of power plant equipment also follows. The water-cooled wall tube is an important part of the heating surface tube of the boiler in the power plant, and belongs to the high-temperature and high-pressure pressure pipeline. With the long-term use of equipment, high-temperature corrosion, wear, sampling, etc., require large-scale and frequent replacement and welding of water-cooled wall tubes. At present, the diameters of water-cooled wall tubes in domestic power plants are mainly divided into three types: φ60, φ32 and φ28. The welding position is mainly 2G (vertical fixed positi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/053G09B25/02
CPCB23K37/0533G09B25/02
Inventor 张涛高树奎严晖任子明李奇伟张德生冯继东李跃峰焦志红
Owner 国电电力邯郸东郊热电有限责任公司