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Orifice degaussing device for long-distance pipeline

A technology of long-distance pipelines and degaussing devices, which is applied in the direction of magnetic objects, electrical components, circuits, etc., can solve problems affecting welding quality, etc., and achieve the effect of convenient use

Inactive Publication Date: 2015-08-19
中石化胜利油建工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Seriously affected the welding quality

Method used

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  • Orifice degaussing device for long-distance pipeline
  • Orifice degaussing device for long-distance pipeline

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Embodiment Construction

[0015] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

[0016] Such as Figure 1-2 As shown, the long-distance pipeline nozzle degaussing device includes a cylindrical support 1, the inner diameter of the cylindrical support is slightly larger than the outer diameter of the pipeline nozzle, so that the cylindrical support can be easily put on and put on Outside the circumference of the pipe nozzle, the outer circumference of the cylindrical support is spirally wound with welding cables 4 , and the joints of the cables are connected with a DC welding machine 5 . The cylindrical support includes two end rings with the same diameter, and the two end rings are connected by several axial support rods 2. The number of support rods should ensure that the wound cables will not ru...

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Abstract

The invention discloses an orifice degaussing device for a long-distance pipeline. The orifice degaussing device comprises a cylindrical support, the internal diameter of the cylindrical support is slightly greater than the external diameter of an orifice of a pipeline, so that the cylindrical support can be conveniently sleeved on or taken out from the periphery of the orifice of the pipeline. A cable for welding is spirally winded on the periphery of the cylindrical support, and a joint of the cable is connected with a DC welding machine. The cable spirally winded on the cylindrical support forms 8 to 10 loops without crossover and overlap. The orifice degaussing device for the long-distance pipeline can degauss a welded orifice when the pipeline is welded, magnetic blow can be avoided, the arc stability will not be interfered, and a problem that the orifice cannot be normally welded because strong magnetism at the periphery of a groove attracts a welding wire to generate flutter or adhesion can be solved.

Description

technical field [0001] The invention relates to construction equipment for long-distance petroleum pipelines, in particular to a degaussing device for nozzles of long-distance pipelines. Background technique [0002] High-quality pipeline welding in pipeline construction depends on many factors; however, the magnetism at the welded joint of the pipeline also has a greater impact on welding. Because it not only affects the welding quality and produces welding defects but also affects the progress of the project. Therefore, it is very important to choose the nozzle degaussing device reasonably. [0003] The phenomenon of magnetism in the welded joints of long-distance natural gas pipelines is encountered in the process of welding joints. The specific manifestations are: during root welding, welding arcs appear, resulting in magnetic deflection, which interferes with arc stability and is prone to welding defects. Especially when gas shielded welding is used for root welding, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/32H01F13/00
CPCB23K9/32H01F13/00
Inventor 王绍智汤海东邹波马云军
Owner 中石化胜利油建工程有限公司
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