CN203500680U - Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers - Google Patents

Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers Download PDF

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Publication number
CN203500680U
CN203500680U CN201320653716.2U CN201320653716U CN203500680U CN 203500680 U CN203500680 U CN 203500680U CN 201320653716 U CN201320653716 U CN 201320653716U CN 203500680 U CN203500680 U CN 203500680U
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CN
China
Prior art keywords
stainless steel
steel pipe
pipeline
carbon steel
thin
Prior art date
Application number
CN201320653716.2U
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Chinese (zh)
Inventor
吴汉超
Original Assignee
吴汉超
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Application filed by 吴汉超 filed Critical 吴汉超
Priority to CN201320653716.2U priority Critical patent/CN203500680U/en
Application granted granted Critical
Publication of CN203500680U publication Critical patent/CN203500680U/en

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Abstract

The utility model relates to a bimetal composite pipe with a stainless steel pipe connector and two staggered double-welding layers. The bimetal composite pipe is characterized in that a circle of trapezoid groove is formed between an inclined angle of a carbon steel pipe and an inclined angle of the stainless steel pipe connector, a first circle of welding layer is arranged in the trapezoid groove formed between the carbon steel pipe and the stainless steel pipe connector, the carbon steel pipe and the stainless steel pipe connector are welded together through the first circle of welding layer, the carbon steel pipe and the stainless steel pipe connector are the same in inner diameter and outer diameter, a thin-walled stainless steel pipe extends into the stainless steel pipe connector along the inner wall of the carbon steel pipe and covers the first annular welding layer, the outer end of the thin-walled stainless steel pipe and the inner wall of the stainless steel pipe connector are welded together through a second circle of welding layer in a seamless mode, and the outer diameter of the thin-walled stainless steel pipe is the same as the inner diameter of the carbon steel pipe. The bimetal composite pipe is welded in a two-layer staggered mode and is high in strength, high in rigidity, not prone to breakage and long in service life; compared with other composite pipes made of bimetal composite steel, the bimetal composite pipe better resists corrosion and pressure and is beneficial to site construction and site manufacture.

Description

The two layer composite bimetal pipes of twice dislocation with stainless steel joint for pipeline
Technical field
The utility model relates to the conveyance conduit of liquid medium, specifically the two layer composite bimetal pipes of a kind of dislocation of the twice with stainless steel joint for pipeline.
Background technique
In prior art there is following shortcoming in the composite bimetal pipe of manufacturer production, 1, carbon steel tube inwall scribbles anticorrosive paint, take seamed steel pipe welding, in welding process, inner liner stainless steel and pipe joint are not welded, liquid medium easily penetrates into carbon steel tube internal corrosion carbon steel tube like this.2, adopt pipe joint and carbon steel tube and inner liner stainless steel pipe to weld simultaneously, but when pipe joint and carbon steel tube welding, be easily expressed to inner liner stainless steel pipe, make to have gap between inner liner stainless steel pipe and carbon steel tube, in use liquid medium easily enters into the corrosion that causes carbon steel tube inwall in the gap between inner liner stainless steel pipe and carbon steel tube, and this technology of welding simultaneously in use easily causes fracture, breaks, and scene cannot be constructed and make.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of dislocation of the twice with stainless steel joint for pipeline two layer composite bimetal pipes, the utility model solves the technological scheme that its technical problem adopts: structure of the present utility model comprises stainless steel joint for pipeline, carbon steel tube, thin-wall stainless steel, first lap layer, the second lap welding layer, oblique angle is arranged in the end that it is characterized in that carbon steel tube, oblique angle is also arranged at the two ends of stainless steel joint for pipeline, the two ends of carbon steel tube are provided with stainless steel joint for pipeline, between oblique angle on carbon steel tube and the oblique angle on stainless steel joint for pipeline, form the trapezoidal groove of a circle, in the trapezoidal groove forming between carbon steel tube and stainless steel joint for pipeline, be provided with first lap layer, between carbon steel tube and stainless steel joint for pipeline, by first lap layer, weld together, carbon steel tube is all identical with the internal-and external diameter of stainless steel joint for pipeline, thin-wall stainless steel is arranged in carbon steel tube, thin-wall stainless steel extends in along the inwall of carbon steel tube to stainless steel joint for pipeline and covers first lap layer, the outer end of thin-wall stainless steel is together with passing through the second lap welding layer seamless welding between stainless steel joint for pipeline inwall, the external diameter of thin-wall stainless steel is identical with the internal diameter of carbon steel tube, the outer wall of thin-wall stainless steel and the inwall of carbon steel tube fit tightly, stainless steel joint for pipeline is by first lap layer and the second lap welding layer and carbon steel tube and thin-wall stainless steel composition integrative-structure.
The utility model composite pipe is mainly by stainless steel joint for pipeline, carbon steel tube, thin-wall stainless steel forms, the bevelling, two ends of stainless steel joint for pipeline, the two ends of carbon steel tube are bevelling also, first by the oblique angle alignment relative of the oblique angle of stainless steel joint for pipeline end and carbon steel tube end, then the trapezoidal groove place forming between carbon steel tube and stainless steel joint for pipeline adopts welding technique that carbon steel tube and stainless steel joint for pipeline are welded together, connect after carbon steel tube and stainless steel joint for pipeline, the inwall of first lap layer is polished flat, make the first layer inwall concordant with carbon steel tube inwall, again thin-wall stainless steel extended in along the inwall of carbon steel tube to stainless steel joint for pipeline and cover first lap layer, finally adopt welding technique that the inwall of the end of thin-wall stainless steel and stainless steel joint for pipeline is welded together, by inside and outside dislocation, weld, intensity and the sealing of whole composite pipe have been guaranteed.
The beneficial effects of the utility model are, the double-deck dislocation welding of the utility model, and intensity is high, hardness easy-rupturing very much not, long service life, internal and external anti-corrosive once completes, and wear-resistant, good antiscale property, high temperature resistant, anti-aging, frictional resistance is little, energy-saving and cost-reducing, cost performance is high; The composite pipe of making than other bimetal Composite Steel, more corrosion-resistant, more withstand voltage, and be convenient to site operation and field fabrication.
Accompanying drawing explanation
Fig. 1: the utility model embodiment cross-sectional view.
Fig. 2: the utility model embodiment perspective view.
Fig. 3: the local structure for amplifying schematic diagram of the utility model embodiment.
In figure: stainless steel joint for pipeline 1, carbon steel tube 2, thin-wall stainless steel 3, first lap layer 4, the second lap welding layer 5.
Embodiment
With reference to the accompanying drawings of the utility model being done to following concrete detailed description.As shown in drawings, structure of the present utility model comprises stainless steel joint for pipeline 1, carbon steel tube 2, thin-wall stainless steel 3, first lap layer 4, the second lap welding layer 5, oblique angle is arranged in the end that it is characterized in that carbon steel tube 2, oblique angle is also arranged at the two ends of stainless steel joint for pipeline 1, the two ends of carbon steel tube 2 are provided with stainless steel joint for pipeline 1, between oblique angle on oblique angle on carbon steel tube 2 and stainless steel joint for pipeline 1, form the trapezoidal groove of a circle, in the trapezoidal groove forming between carbon steel tube 2 and stainless steel joint for pipeline 1, be provided with first lap layer 4, between carbon steel tube 2 and stainless steel joint for pipeline 1, by first lap layer 4, weld together, carbon steel tube 2 is all identical with the internal-and external diameter of stainless steel joint for pipeline 1, thin-wall stainless steel 3 is arranged in carbon steel tube 2, thin-wall stainless steel 3 is along the inwall of carbon steel tube 2 to the interior extension of stainless steel joint for pipeline 1 and cover first lap layer 4, the outer end of thin-wall stainless steel 3 is together with passing through the second lap welding layer 5 seamless welding between stainless steel joint for pipeline 1 inwall, the external diameter of thin-wall stainless steel 3 is identical with the internal diameter of carbon steel tube 2, the inwall of the outer wall of thin-wall stainless steel 3 and carbon steel tube 2 fits tightly, stainless steel joint for pipeline 1 forms integrative-structure by first lap layer 4 and the second lap welding layer 5 with carbon steel tube 2 and thin-wall stainless steel 3.
Embodiment recited above is described preferred implementation of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design concept; various modification and improvement that in related domain, common engineers and technicians make the technical solution of the utility model; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection, is all documented in claims.

Claims (1)

1. with the two layer composite bimetal pipes of twice dislocation of stainless steel joint for pipeline, comprise stainless steel joint for pipeline (1), carbon steel tube (2), thin-wall stainless steel (3), first lap layer (4), the second lap welding layer (5), oblique angle is arranged in the end that it is characterized in that carbon steel tube (2), oblique angle is also arranged at the two ends of stainless steel joint for pipeline (1), the two ends of carbon steel tube (2) are provided with stainless steel joint for pipeline (1), between oblique angle on oblique angle on carbon steel tube (2) and stainless steel joint for pipeline (1), form the trapezoidal groove of a circle, in the trapezoidal groove forming between carbon steel tube (2) and stainless steel joint for pipeline (1), be provided with first lap layer (4), between carbon steel tube (2) and stainless steel joint for pipeline (1), by first lap layer (4), weld together, carbon steel tube (2) is all identical with the internal-and external diameter of stainless steel joint for pipeline (1), thin-wall stainless steel (3) is arranged in carbon steel tube (2), thin-wall stainless steel (3) extends in along the inwall of carbon steel tube (2) to stainless steel joint for pipeline (1) and covers first lap layer (4), the outer end of thin-wall stainless steel (3) is together with passing through the second lap welding layer (5) seamless welding between stainless steel joint for pipeline (1) inwall, the external diameter of thin-wall stainless steel (3) is identical with the internal diameter of carbon steel tube (2), the inwall of the outer wall of thin-wall stainless steel (3) and carbon steel tube (2) fits tightly, stainless steel joint for pipeline (1) forms integrative-structure by first lap layer (4) and the second lap welding layer (5) with carbon steel tube (2) and thin-wall stainless steel (3).
CN201320653716.2U 2013-10-23 2013-10-23 Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers CN203500680U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320653716.2U CN203500680U (en) 2013-10-23 2013-10-23 Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320653716.2U CN203500680U (en) 2013-10-23 2013-10-23 Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers

Publications (1)

Publication Number Publication Date
CN203500680U true CN203500680U (en) 2014-03-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455760A (en) * 2014-09-23 2015-03-25 吴汉超 Manufacturing method for misplaced double-welding-layer double-metal compound pipe with stainless steel pipe joint
CN105276336A (en) * 2014-12-08 2016-01-27 中国石油天然气股份有限公司 Welding pipeline internal corrosion prevention method and pipeline used for method
CN106626537A (en) * 2017-02-23 2017-05-10 江苏冰溶管业有限公司 Double-layer staggered sealing welded pipe
CN107803607A (en) * 2016-09-09 2018-03-16 中国石化工程建设有限公司 Welding dissimilar materials structure for composite plate pressing pressure container

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455760A (en) * 2014-09-23 2015-03-25 吴汉超 Manufacturing method for misplaced double-welding-layer double-metal compound pipe with stainless steel pipe joint
CN105276336A (en) * 2014-12-08 2016-01-27 中国石油天然气股份有限公司 Welding pipeline internal corrosion prevention method and pipeline used for method
CN107803607A (en) * 2016-09-09 2018-03-16 中国石化工程建设有限公司 Welding dissimilar materials structure for composite plate pressing pressure container
CN107803607B (en) * 2016-09-09 2019-08-20 中国石化工程建设有限公司 Dissimilar material welding structure for composite plate pressing pressure container
CN106626537A (en) * 2017-02-23 2017-05-10 江苏冰溶管业有限公司 Double-layer staggered sealing welded pipe

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