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Pipeline outer opening aligning device and pipeline grouping welding method

A technology of external pairing and device pairing, which is applied in the direction of auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve the problems of low construction efficiency and poor welding quality, and achieve the effect of simple operation, guaranteed welding quality and high construction efficiency

Active Publication Date: 2014-03-19
PANGANG GRP ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a pipeline external counterpart device to solve the defects of low construction efficiency and poor welding quality existing in the existing pipeline external counterpart device

Method used

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  • Pipeline outer opening aligning device and pipeline grouping welding method
  • Pipeline outer opening aligning device and pipeline grouping welding method
  • Pipeline outer opening aligning device and pipeline grouping welding method

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Embodiment Construction

[0026] Embodiments of the invention will now be described in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0027] figure 1 It shows the front view of the pipe external mouthpiece device according to the embodiment of the present invention; figure 2 A side view of a pipe external mouthpiece device according to an embodiment of the present invention is shown; image 3 Shows a top view of the pipe external mouthpiece device according to an embodiment of the present invention; Figure 4 It shows a side view of the pipe outer counterpart device in an open state according to an embodiment of the present invention.

[0028] refer to Figure 1 to Figure 4 , according to the embodiment of the present invention, the pipe external mouth device includes: a main body 100, which is cylindri...

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Abstract

The invention provides a pipeline outer opening aligning device and a pipeline grouping welding method. The pipeline outer opening aligning device comprises a body, a first connecting piece, a second connecting piece and at least two blocking pieces, wherein the body is cylindrical and composed of two semi-cylindrical parts, the first connecting piece is used for hinging the first ends of the two semi-cylindrical parts, the second connecting piece is arranged at the second ends of the two semi-cylindrical parts and used for fixedly connecting the second ends of the two semi-cylindrical parts, the blocking pieces have a preset certain thickness and protrude inwards from the inner surface of the body at preset intervals in the peripheral direction of the body at the roughly middle position in the axial length direction of the body, and the body is provided with openings which are formed between the blocking pieces in the peripheral direction of the body so that the side portions of the blocking pieces can be exposed. According to the pipeline outer opening aligning device, grouping cost is low, operation is easy and convenient to carry out, construction efficiency is high, weld joints formed after grouping are uniform, weld stress is small, and pipeline welding quality can be guaranteed.

Description

technical field [0001] The invention relates to the field of pipeline installation, more specifically, to a pipeline external counterpart device and a construction method for butt-welding pipelines using the pipeline external counterpart device. Background technique [0002] During the welding and installation of pipelines (especially long-distance transmission pipelines), it is necessary to use external counterparts for assembly. When using the matching device to assemble the pipes, a certain gap should be left between the two pipes to ensure the welding quality (avoid internal undercut, incomplete penetration, slag inclusion, etc.). However, controlling the size and uniformity of the gap is a big problem. The existing matching device takes a long time to assemble the pipes, requires many operators, and the construction efficiency is low. Moreover, the welding gap of the pipes after the assembly is uneven, which makes the stress after welding large, and it is difficult to ...

Claims

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Application Information

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IPC IPC(8): B23K37/053
CPCB23K37/0533B23K2101/06
Inventor 杨炯勇周旭钟彪黄亮思雷勇罗富英
Owner PANGANG GRP ENG TECH
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