CN204035823U - A kind of pipeline chain type magnetic conduction instrument optimizing demagnetization - Google Patents
A kind of pipeline chain type magnetic conduction instrument optimizing demagnetization Download PDFInfo
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- CN204035823U CN204035823U CN201420416520.6U CN201420416520U CN204035823U CN 204035823 U CN204035823 U CN 204035823U CN 201420416520 U CN201420416520 U CN 201420416520U CN 204035823 U CN204035823 U CN 204035823U
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- inductive block
- magnetic inductive
- chain type
- block assembly
- type magnetic
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Abstract
The utility model discloses a kind of pipeline chain type magnetic conduction instrument optimizing demagnetization, belong to oil and gas pipes welding aid field in Oil & Gas Storage construction.This chain type magnetic conduction instrument at least comprises: striking magnetic inductive block assembly, chain type magnetic inductive block assembly, magnetic conduction chain; Described striking magnetic inductive block assembly is at least one, and chain type magnetic inductive block assembly is several, all arranges according to the circular path of pipeline, and described chain type magnetic inductive block assembly is connected by magnetic conduction chain.The conducting magnetic line of force within the scope of the maximum length of weld seam as far as possible, by field experiment, chain type magnetic conduction instrument can reduce pipeline magnetic field 60-70%, ensureing that pipe welding port there will not be arc blow phenomenon when welding, improving welding quality.Solve the problem cannot welded because magnetic field intensity on pipeline is large, shorten the engineering time, be widely used in different tube diameters, different magnetic field, different construction conditions operation.
Description
Technical field
The utility model relates to oil and gas pipes welding aid field, particularly a kind of pipeline chain type magnetic conduction instrument optimizing demagnetization in Oil & Gas Storage construction.
Background technology
Long-distance oil & gas pipeline, in the long-time process used, needs regular carrying out to clean and detects.In recent years, digitized Intelligent pigging equipment is widely used in natural gas line, but because intelligent pig is detected a flaw to pipeline by the mode in magnetic field, often carry out a pigging to be all equivalent to carry out once magnetizing to pipeline, this direct result caused is exactly the quality that there will be arc blow phenomenon when pipeline maintenance weld job and have influence on normal welding process and welding.At present, when band magnetic tube road is welded, when the method generally used is root bead, by degaussion coil, pipeline is added that a counter magnetic field oppositely demagnetizes.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Current long oil transportation (gas) pipeline all adopts Large Diameter Pipeline, high strength steel, butt welding mouth preheating requirement is quite strict, general employing weld bond both sides add preheat coil, the anti-magnetized coil that at this moment will manufacture a counter magnetic field on pipeline does not just have enough positions to be wound around, cause demagnetizing or to demagnetize not exclusively, cannot weld, thus have a strong impact on construction speed and construction quality.If but butt welding mouth adopts flame heating and dangerous, has again conflict with external clamp.
In long-distance oil & gas pipeline construction, everybody acquiescence when residual magnetization is not enough to affect welding quality, usually just allow to weld, and also only with the individual level decision of welder.In band magnetic welding process, easily produce arc blow, this needs welder's solder technology really up to the mark, otherwise weld seam easily produces lack of penetration, and welding quality is difficult to the problems such as guarantee, urgently to be resolved hurrily simultaneously.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of pipeline chain type magnetic conduction instrument optimizing demagnetization.The magnetic field intensity at weld bond place can be made obviously to reduce, ensureing that pipe welding port there will not be magnetic biasing to go out phenomenon when welding, improving welding quality.Described technical scheme is as follows:
Optimize a pipeline chain type magnetic conduction instrument for demagnetization, at least comprise: striking magnetic inductive block assembly, chain type magnetic inductive block assembly, magnetic conduction chain; Described striking magnetic inductive block assembly is at least one, and chain type magnetic inductive block assembly is several, all arranges according to the circular path of pipeline, and described chain type magnetic inductive block assembly is connected by magnetic conduction chain.
Particularly, described striking magnetic inductive block assembly at least comprises magnetic inductive block, run-on tab, the cross section of described magnetic inductive block to be both sides angle the be isosceles triangle of 65 °, striking magnetic inductive block radian and the outer diameter tube of described striking magnetic inductive block assembly match, and the cylindrical of described magnetic inductive block is welded with run-on tab.
Particularly, described chain type magnetic inductive block assembly at least comprises pipe, magnetic inductive block, the cross section of described magnetic inductive block to be both sides angle the be isosceles triangle of 65 °, chain type magnetic inductive block radian and the outer diameter tube of described chain type magnetic inductive block assembly match, and the cylindrical two ends of described magnetic inductive block are respectively welded with a pipe.
Further, the pipe on described every section of magnetic inductive block connects with the pipe on another section of adjacent magnetic inductive block respectively by magnetic conduction chain.
Further, the striking magnetic inductive block radian of described striking magnetic inductive block assembly is identical with the chain type magnetic inductive block radian of chain type magnetic inductive block assembly.
Particularly, described striking magnetic inductive block assembly is four, be uniformly distributed according to the circular path of pipeline, the magnetic inductive block of striking magnetic inductive block assembly is separately positioned in four test point groove gaps selected on pipeline, be provided with several chain type magnetic inductive block assemblies between each striking magnetic inductive block assembly, each chain type magnetic inductive block assembly is linked together by magnetic conduction chain.
Further, fill up in the groove gap that the magnetic inductive block of each chain type magnetic inductive block assembly described is separately positioned on pipe welding seam.
Further, between described two striking magnetic inductive block assemblies, 3-5 section chain type magnetic inductive block assembly is set.
Further, the strip magnetic inductive block of described striking magnetic inductive block assembly cuts into the segment that every segment length is 8-10mm; The strip magnetic inductive block of described chain type magnetic inductive block assembly cuts into the segment that every segment length is 6-8mm.
Further, described striking magnetic inductive block assembly, chain type magnetic inductive block assembly material are soft iron DT4E; Radian ︵ between the chain type magnetic inductive block assembly and striking magnetic inductive block assembly of end is 100.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By field experiment, chain type magnetic conduction instrument can reduce pipeline magnetic field 60-70%, ensureing that pipe welding port there will not be arc blow phenomenon when welding, improving welding quality.Solve the problem cannot welded because magnetic field intensity on pipeline is large, shorten the engineering time, be widely used in different tube diameters, different magnetic field, different construction conditions operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the pipeline chain type magnetic conduction tool construction schematic diagram of the optimization demagnetization that the utility model embodiment one provides;
Fig. 2 is the pipeline chain type magnetic conduction instrument local expansion structural representation of the optimization demagnetization that the utility model embodiment one provides;
Fig. 3 is the front view of striking magnetic inductive block modular construction schematic diagram in Fig. 1 of providing of the utility model embodiment one;
Fig. 4 is the right view of striking magnetic inductive block assembly in Fig. 3 of providing of the utility model embodiment one;
Fig. 5 is the front view of chain type magnetic inductive block modular construction schematic diagram in Fig. 1 of providing of the utility model embodiment one;
Fig. 6 is the top view of chain type magnetic inductive block assembly in Fig. 5 of providing of the utility model embodiment one;
Fig. 7 is the left view of chain type magnetic inductive block assembly in Fig. 5 of providing of the utility model embodiment one;
Fig. 8 is the front view of magnetic conduction chain structure schematic diagram in Fig. 1 of providing of the utility model embodiment one;
Fig. 9 is the pipeline chain type magnetic conduction tool construction schematic diagram of the optimization demagnetization that the utility model embodiment two provides;
Figure 10 is A-A sectional view and optimize the pipeline chain type magnetic conduction instrument scheme of installation of demagnetization in Fig. 5 of providing of the utility model embodiment one.
In figure, each symbol represents that implication is as follows:
1 striking magnetic inductive block assembly, 1.1 magnetic inductive blocks, 1.2 run-on tabs;
2 chain type magnetic inductive block assemblies, 2.1 pipes, 2.2 magnetic inductive blocks;
2n end chain type magnetic inductive block assembly;
3 magnetic conduction chains;
4 pipelines;
R1 striking magnetic inductive block radian, R2 chain type magnetic inductive block radian;
︵ radian;
A triangle magnetic inductive block angle.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment one
Shown in Fig. 1, Fig. 2, the utility model embodiment provides a kind of pipeline chain type magnetic conduction instrument optimizing demagnetization, at least comprises: striking magnetic inductive block assembly 1, chain type magnetic inductive block assembly 2, magnetic conduction chain 3 etc.; Particularly, described striking magnetic inductive block assembly 1 is arranged according to the circular path of pipeline 4, be at least one, chain type magnetic inductive block assembly 2 is several, also arranges according to the circular path of pipeline 4, and each adjacent chain type magnetic inductive block assembly 2 is linked together by magnetic conduction chain 3, form a kind of chain type magnetic conduction instrument of annular trace, in order to carry out magnetic field conducting to pipeline in pipeline band magnetic situation, ensureing that pipe welding port there will not be magnetic biasing to go out phenomenon when welding, ensureing welding quality.Generally the radian ︵ between the chain type magnetic inductive block assembly 2n and striking magnetic inductive block assembly 1 of end is designed to 100.
Shown in Fig. 3, Fig. 4, particularly, described striking magnetic inductive block assembly 1 is at least made up of magnetic inductive block 1.1, run-on tab 1.2, the soft iron with good magnetic conductivity is adopted to make, so-called soft iron is exactly the ferroalloy that phosphorus content is less than 0.02%, and also known as pure iron, the feature of soft iron magnetic puts into magnetic field to be easily magnetized, after leaving magnetic field, the iron demagnetized at once again.Described magnetic inductive block 1.1 and the better soft iron DT4E that selects of run-on tab 1.2 make, and its performance indications are:
| Magnetic grade | The trade mark | Coercivity | Coercivity timeliness is rised in value | Maximum permeability |
| Superfine | DT4E | ≤48 | ≤4.8 | ≥0.0113 |
Described magnetic inductive block 1.1 is polished into strip with soft iron rod, its cross section to be both sides angle a be isosceles triangle of 65 °, the striking magnetic inductive block radian R1 of magnetic inductive block 1.1 is made according to the pipe diameter size of pipeline, described striking magnetic inductive block radian R1 and pipeline 4 external diameter match, by the segment of strip magnetic inductive block 1.1 cut growth 8-10mm, the cylindrical of every section of magnetic inductive block 1.1 is welded with run-on tab 1.2 for striking, starting the arc difficulty when can reduce welding.
See Fig. 5, Fig. 6, shown in Fig. 7, particularly, described chain type magnetic inductive block assembly 2 is at least by pipe 2.1, magnetic inductive block 2.2 is formed, described magnetic inductive block 2.2 is identical with magnetic inductive block 1.1 material of striking magnetic inductive block assembly 1, described magnetic inductive block 2.2 is polished into strip with soft iron rod, its cross section to be both sides angle a be isosceles triangle of 65 °, the chain type magnetic inductive block radian R2 of magnetic inductive block 2.2 is made according to the pipe diameter size of pipeline, described chain type magnetic inductive block radian R2 and pipeline 4 external diameter match, described chain type magnetic inductive block radian R2 is identical with striking magnetic inductive block radian R1, strip magnetic inductive block 2.2 is cut into the segment of every section of 6-8mm, the cylindrical two ends of every section of magnetic inductive block 2.2 are welded with a pipe 2.1.
Simultaneously shown in Figure 8, particularly, pipe 2.1 on described every section of magnetic inductive block 2.2 connects with the pipe 2.1 on adjacent another section of magnetic inductive block 2.2 respectively by magnetic conduction chain 3, magnetic conduction chain 3 is as far as possible short and small, because the less magnetic field of magnetic inductive block 2.2 spacing, weld bond place is less, magnetic conduction effect is better, but not easily too small, otherwise magnetic conduction chain 3 and tube groove can be caused not to fit, affect magnetic conduction effect.
Embodiment two
Shown in Figure 9, particularly, described striking magnetic inductive block assembly 1 is preferably four, be uniformly distributed according to the circular path of pipeline 4, the magnetic inductive block 1.1 of striking magnetic inductive block assembly 1 is separately positioned in four test point groove gaps selected on pipeline 4, be provided with several chain type magnetic inductive block assemblies 2 between each striking magnetic inductive block assembly 1, generally between adjacent striking magnetic inductive block assembly 1, arrange 3-5 section chain type magnetic inductive block assembly 2, each chain type magnetic inductive block assembly 2 is linked together by magnetic conduction chain 3.
Simultaneously shown in Figure 10, during installation, first in four test point positions of pipeline 4, four striking magnetic inductive block assemblies 1 are installed, then several chain type magnetic inductive block assemblies 2 are installed on the pipeline 4 between four striking magnetic inductive block assemblies 1, connected by magnetic conduction chain 3, fill up in the groove gap that the magnetic inductive block 2.2 of each chain type magnetic inductive block assembly 2 is separately positioned on pipeline 4 weld seam, make the pipeline 4 magnetic field conducting of weld bond two ends, now pipeline 4 commissure there will not be arc blow phenomenon, can carry out the weld job to pipeline 4.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In sum, the utility model embodiment is according to pipe welding port two-stage magnetic line of force distribution situation, magnetic effect falls in the magnetic conduction utilizing soft iron good, when not affecting weld seam pre-heating technique, high permeability material is adopted to be made into chain type magnetic conduction instrument, the conducting magnetic line of force within the scope of the maximum length of weld seam, makes field strength reduce as far as possible, to solve the problem of band magnetic welding difficulty.Can according to the different model specification of oil transportation (gas) pipeline, make seriation instrument, meet construction demand under different condition, reduce and stop overhauling on user's particularly impact of bringing with oil gas of city dweller,
In addition, the advantage that the utility model embodiment also has, overthrow the pipeline band magnetic of having proved early stage and be welded on the conclusion can carrying out within the scope of remnant field≤60GS welding, and by practice show that pipeline band magnetic is welded on the conclusion can carrying out within the scope of remnant field≤300GS welding, and weld bond be verified as qualified.
Oppositely fall compared with magnetic with traditional, the light easy installation of chain type magnetic conduction instrument, does not produce secondary energy consumption, compares existing degausser manufacturing cost and reduces 1/10.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. optimize a pipeline chain type magnetic conduction instrument for demagnetization, it is characterized in that, at least comprise: striking magnetic inductive block assembly, chain type magnetic inductive block assembly, magnetic conduction chain; Described striking magnetic inductive block assembly is at least one, and chain type magnetic inductive block assembly is several, all arranges according to the circular path of pipeline, and described chain type magnetic inductive block assembly is connected by magnetic conduction chain.
2. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 1, it is characterized in that, described striking magnetic inductive block assembly at least comprises magnetic inductive block, run-on tab, the cross section of described magnetic inductive block to be both sides angle the be isosceles triangle of 65 °, striking magnetic inductive block radian and the outer diameter tube of described striking magnetic inductive block assembly match, and the cylindrical of described magnetic inductive block is welded with run-on tab.
3. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 1, it is characterized in that, described chain type magnetic inductive block assembly at least comprises pipe, magnetic inductive block, the cross section of described magnetic inductive block to be both sides angle the be isosceles triangle of 65 °, chain type magnetic inductive block radian and the outer diameter tube of described chain type magnetic inductive block assembly match, and the cylindrical two ends of described magnetic inductive block are respectively welded with a pipe.
4. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 3, it is characterized in that, the pipe on described every section of magnetic inductive block connects with the pipe on another section of adjacent magnetic inductive block respectively by magnetic conduction chain.
5. the pipeline chain type magnetic conduction instrument of the optimization demagnetization according to Claims 2 or 3, it is characterized in that, the striking magnetic inductive block radian of described striking magnetic inductive block assembly is identical with the chain type magnetic inductive block radian of chain type magnetic inductive block assembly.
6. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 1, it is characterized in that, described striking magnetic inductive block assembly is four, be uniformly distributed according to the circular path of pipeline, the magnetic inductive block of striking magnetic inductive block assembly is separately positioned in four test point groove gaps selected on pipeline, be provided with several chain type magnetic inductive block assemblies between each striking magnetic inductive block assembly, each chain type magnetic inductive block assembly is linked together by magnetic conduction chain.
7. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 6, is characterized in that, fills up in the groove gap that the magnetic inductive block of each chain type magnetic inductive block assembly described is separately positioned on pipe welding seam.
8. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 1, is characterized in that, arrange 3-5 section chain type magnetic inductive block assembly between described two striking magnetic inductive block assemblies.
9. the pipeline chain type magnetic conduction instrument of the optimization demagnetization according to Claims 2 or 3, it is characterized in that, the strip magnetic inductive block of described striking magnetic inductive block assembly cuts into the segment that every segment length is 8-10mm; The strip magnetic inductive block of described chain type magnetic inductive block assembly cuts into the segment that every segment length is 6-8mm.
10. the pipeline chain type magnetic conduction instrument optimizing demagnetization according to claim 1, it is characterized in that, described striking magnetic inductive block assembly, chain type magnetic inductive block assembly material are soft iron DT4E; Radian ︵ between the chain type magnetic inductive block assembly and striking magnetic inductive block assembly of end is 100.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420416520.6U CN204035823U (en) | 2014-07-25 | 2014-07-25 | A kind of pipeline chain type magnetic conduction instrument optimizing demagnetization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416520.6U CN204035823U (en) | 2014-07-25 | 2014-07-25 | A kind of pipeline chain type magnetic conduction instrument optimizing demagnetization |
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| CN204035823U true CN204035823U (en) | 2014-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625365A (en) * | 2015-01-06 | 2015-05-20 | 南通太平洋海洋工程有限公司 | Method for overcoming reelpipe longitudinal weld welding magnetic field |
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2014
- 2014-07-25 CN CN201420416520.6U patent/CN204035823U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625365A (en) * | 2015-01-06 | 2015-05-20 | 南通太平洋海洋工程有限公司 | Method for overcoming reelpipe longitudinal weld welding magnetic field |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |