CN204879085U - Outer 3PE anticorrosion pipeline of interior epoxy of benefit is excused from a college course to anticorrosive coating in welding back - Google Patents

Outer 3PE anticorrosion pipeline of interior epoxy of benefit is excused from a college course to anticorrosive coating in welding back Download PDF

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Publication number
CN204879085U
CN204879085U CN201520524637.0U CN201520524637U CN204879085U CN 204879085 U CN204879085 U CN 204879085U CN 201520524637 U CN201520524637 U CN 201520524637U CN 204879085 U CN204879085 U CN 204879085U
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China
Prior art keywords
pipeline
welding
pipe
excused
benefit
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CN201520524637.0U
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Chinese (zh)
Inventor
桑洪涛
赵明印
丛悦增
邓建新
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WEIFANG EAST PIPE INDUSTRY TECHNOLOGY Co Ltd
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WEIFANG EAST PIPE INDUSTRY TECHNOLOGY Co Ltd
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Abstract

The utility model relates to an outer 3PE anticorrosion pipeline of interior epoxy of benefit is excused from a college course to anticorrosive coating in welding back at this end of body of pipeline inner wall compound two metallic structure in advance, and then carries out preserved handle, and anticorrosive coating, metallic structure, pipe wall are combined closely, forms one complete in succession, interior anticorrosive coating that the performance is unanimous, the outer 3PE anticorrosion pipeline of interior epoxy accomplishes welding construction back, internally the anticorrosive coating does not lead to the fact the influence, and does not need interior anticorrosive coating repair operation.

Description

In after welding, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit
Technical field
The utility model relates to a kind of anti-corrosion pipeline, be applicable to the outer 3PE anti-corrosion pipeline of interior epoxy, be particularly useful for anticorrosive coat in after welding and be excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, specifically, relate to and a kind ofly weld the outer 3PE anti-corrosion pipeline of interior epoxy that rear interior anticorrosive coat is excused from a college course benefit.
Background technique
Welding connecting mode is adopted for carrying the outer 3PE anti-corrosion pipeline pipeline construction of the interior epoxy of fluid (potable water, industrial water, seawater and all kinds of gas), the heat affected zone that length is about 60 ~ 100mm is there is in pipe end when welding, inner anticorrosioning coating needs to carry out secondary repairing work after welding completes, secondary repairs section coating antiseptic performance cannot reach the equal performance of body, and be only limitted to more than DN800 caliber, because manually cannot secondary repairing work be carried out, there is the problem of heat affected zone without interior anticorrosive coat in middle small pipe-line.Pipeline forms anticorrosion defect in welding heat affected zone, and pipeline easily occurs the accident potential such as corrosion perforation, explosion at this section, and the Corrosion Protection that the outer 3PE anti-corrosion pipeline of interior epoxy is good is subject to 'bottleneck' restrictions.
Model utility content
Technical problem to be solved in the utility model is for above deficiency, there is provided a kind of and weld the outer 3PE anti-corrosion pipeline of interior epoxy that rear interior anticorrosive coat is excused from a college course benefit, the anti-corrosion pipeline secondary solving more than DN800 caliber in prior art repair after heat affected zone undercoating antiseptic property difference and in small-bore anti-corrosion pipeline heat affected zone without the problem of anticorrosive coat, after adopting anti-corrosion pipeline of the present utility model, without the need to carrying out repairing work, anti-corrosion pipeline pipeline construction efficiency is high, anti-corrosion pipeline inwall has continuously complete, the interior anticorrosive coat that performance is consistent, heat affected zone antiseptic property is good, pipeline construction quality is good, long service life, at least can reach more than 50 years.
For solving the problems of the technologies described above, the technical solution of the utility model is: in after welding, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, comprises pipeline body, it is characterized in that: described pipeline body end is provided with pipe end component.
A kind of optimized project, the inwall that described pipe end component is fitted in pipeline body forms ring-type.
Another kind of optimized project, the outside of described pipe end component exceeds pipeline body end 2 ~ 3mm.
Another optimized project, inside and outside described pipe end component, both sides and joint close welding.
Further optimized project, described pipe end component is strip.
Further optimized project, described pipe end component is stainless steel materials.
The utility model adopts above technological scheme, compared with prior art, have the following advantages: at pipeline body inner wall of end compound bimetal structure in advance, and then carry out preservative treatment, anticorrosive coat, Structural Hardware, tube wall are combined closely, formed one complete continuously, interior anticorrosive coat that performance is consistent, the outer 3PE anti-corrosion pipeline of interior epoxy is after completing welding procedure, internally can not impact by anticorrosive coat, and not need interior anticorrosive coat repairing work.
The utility model adopts the prefabricated mode combined with welding of bimetal, the annular inflatable frock of the sheet metal of corrosion resistance is crimped on pipe end inside, and outside sheet material, exceed pipe end 2 ~ 3mm, after having welded, define the compound body possessing antiseptic property in pipeline body end, the production technology of existing all kinds of steel-plastic composite pipe can be adapted to.
1, bimetal compound body possesses good welding performance, existing mode is adopted to carry out during pipeline welding construction, anticorrosive coat self-assembling formation integrity, conformity in after welding, avoid carrying out interior anticorrosive coat secondary completely and repair and cannot repair that the integral tube line mass brought declines, lost of life problem, solve complex operation, somewhat expensive, there is the repairing difficult problem of workmen's security risk;
2, interior anticorrosive coat once-through, without the need to repairing, the pattern of the sheet metal welding of the corrosion resistance that end adopts, greatly increases the performance of anti-corrosion pipeline, increases the service life, at least reach more than 50 years.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of pipe end component in the utility model embodiment;
Accompanying drawing 2 is preparing processes structural representations of anti-corrosion pipeline in the utility model embodiment;
Accompanying drawing 3 is structural representations of anti-corrosion pipeline pipe end in the utility model embodiment.
In figure,
1-pipe end component, 2-pipeline body, 3-expansion frock, the outer side weld of 4-, 5-weld joint on inner side, 6-joint weld seam.
Embodiment
Embodiment 1, as shown in Figure 1, Figure 2 and Figure 3, in after welding, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, comprises pipeline body 2, and pipeline body 2 is the outer 3PE anti-corrosive steel tube of interior epoxy, pipeline body 2 end is provided with pipe end component 1, pipe end component 1 is in strip, and pipe end component 1 adopts stainless steel materials, and the inwall that pipe end component 1 is fitted in pipeline body 2 forms ring-type, pipe end component 1 welds with pipeline body 2, and the outside of pipe end component 1 exceeds pipeline body 2 end 2 ~ 3mm.
Pipe end component 1 in the present embodiment also can adopt other sheet metals possessing decay resistance.
Embodiment 2, and in after welding, anticorrosive coat is excused from a college course the preparation process of the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, comprises the following steps:
1) pipeline body is prefabricated.
Adopt the steel pipe of all kinds of molding mode manufacture all to can be used as raw material to use.
2) pipe end element precast.
Possessing the sheet metal of decay resistance, in the present embodiment, adopt stainless steel, being made into bar shaped through shearing.
3) group is to assembling.
Pipe end component 1 is arranged on pipeline body 2 inner, exceeds pipeline body 2 end face 2 ~ 3mm outside it, and by expansion frock 3, pipe end component 1 is crimped on pipeline body 2 inwall.
4) composite welding.
Carry out closing welding along both sides inside and outside pipe end component 1 and joint with electric torch, form the continuous weld be made up of outer side weld 4, weld joint on inner side 5 and joint weld seam 6, weld seam extends to pipeline body 2 end face, and pipe end component 1 and pipeline body 2 form firm, complete compound body.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection domain of the present utility model.

Claims (6)

1. in after welding, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, comprises pipeline body (2), it is characterized in that: described pipeline body (2) end is provided with pipe end component (1).
2. in after welding as claimed in claim 1, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, it is characterized in that: the inwall that described pipe end component (1) is fitted in pipeline body (2) forms ring-type.
3. in after welding as claimed in claim 1, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, it is characterized in that: the outside of described pipe end component (1) exceeds pipeline body (2) end 2 ~ 3mm.
4. in after welding as claimed in claim 1, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, it is characterized in that: the inside and outside both sides of described pipe end component (1) and joint close welding.
5. in after welding as claimed in claim 1, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, it is characterized in that: described pipe end component (1) is in strip.
6. in after welding as claimed in claim 1, anticorrosive coat is excused from a college course the outer 3PE anti-corrosion pipeline of interior epoxy of benefit, it is characterized in that: described pipe end component (1) is stainless steel materials.
CN201520524637.0U 2015-07-20 2015-07-20 Outer 3PE anticorrosion pipeline of interior epoxy of benefit is excused from a college course to anticorrosive coating in welding back Active CN204879085U (en)

Priority Applications (1)

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CN201520524637.0U CN204879085U (en) 2015-07-20 2015-07-20 Outer 3PE anticorrosion pipeline of interior epoxy of benefit is excused from a college course to anticorrosive coating in welding back

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520524637.0U CN204879085U (en) 2015-07-20 2015-07-20 Outer 3PE anticorrosion pipeline of interior epoxy of benefit is excused from a college course to anticorrosive coating in welding back

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CN204879085U true CN204879085U (en) 2015-12-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105003751A (en) * 2015-07-20 2015-10-28 潍坊亿斯特管业科技有限公司 Inside-epoxy outside-3PE corrosion-preventing pipeline with inner corrosion-preventing layer free of repairing after welding and manufacturing process of inside-epoxy outside-3PE corrosion-preventing pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105003751A (en) * 2015-07-20 2015-10-28 潍坊亿斯特管业科技有限公司 Inside-epoxy outside-3PE corrosion-preventing pipeline with inner corrosion-preventing layer free of repairing after welding and manufacturing process of inside-epoxy outside-3PE corrosion-preventing pipeline
WO2017012131A1 (en) * 2015-07-20 2017-01-26 潍坊亿斯特管业科技有限公司 Anticorrosive pipeline having inner epoxy and outer 3pe without inner anticorrosive layer repairing after welding and preparation process therefor

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