CN202349482U - Two-end metallurgy mechanical double-metal composite bent pipe - Google Patents
Two-end metallurgy mechanical double-metal composite bent pipe Download PDFInfo
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- CN202349482U CN202349482U CN2011204259676U CN201120425967U CN202349482U CN 202349482 U CN202349482 U CN 202349482U CN 2011204259676 U CN2011204259676 U CN 2011204259676U CN 201120425967 U CN201120425967 U CN 201120425967U CN 202349482 U CN202349482 U CN 202349482U
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- bend pipe
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- bent pipe
- bending section
- lining
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Abstract
The utility model discloses a two-end metallurgy mechanical double-metal composite bent pipe. A bending section is formed in the middle of a matrix bent pipe; two ends of the bending section are connected integrally and are provided with straight pipe sections; a liner bent pipe is arranged in the matrix bent pipe; the distance between the end part of the liner bent pipe and the end part of the matrix bent pipe on the same side as the liner bent pipe is 10 to 50mm; and the two ends of the liner bent pipe and the two ends of the matrix bent pipe are welded and accumulated to form a metallurgical bonding layer. The double-metal composite bent pipe with the structure has a high mechanical property of the matrix bent pipe and excellent corrosion resistance of a liner material, and the defect of low corrosion resistance or high price in the existence of a single metal bent pipe is overcome, so that the double-metal composite bent pipe has the advantages of high intensity, high corrosion resistance, long service life, low production cost of products and the like and can be popularized and applied to the technical fields of petroleum, chemical industries and the like.
Description
Technical field
The utility model belongs to the connection technique field of pipeline, is specifically related to the not bend pipe that connects of point-blank two composite bimetal pipes of center line.
Background technique
In recent years; Composite bimetal pipe technology and production development are very rapid; Technical field with characteristics such as its high performance-price ratios has obtained extensive use in fields such as oil, rock gas, chemical industry; Obtain remarkable economic efficiency and social benefit, solved puzzlement chemical industry, petroleum technology field corrosive pipeline technical barrier for many years effectively, but its connection pipe fitting technology has perplexed the application of this product always.
Bend pipe is with the pipe fitting of two mutual UNICOMs of pipeline on same straight line not, is one of indispensable pipe fitting in the various high low pressure pipelines, also is the basic original paper of extensive use during pipeline connects.But at present because there is certain difficulty in domestic bimetal composite-curve interconnection technique; Therefore, existing bend pipe adopts the corrosion resistant alloy pipe basically, like titanium alloy steel pipe, nickel alloy steel pipe etc.; The technical problem underlying that these bend pipes exist is that price is too high; Because the basal body pipe of bend pipe is different with the internal lining pipe material, and its mechanical property also receives certain limitation, the performance index of prepared composite bend pipe do not reach the technical requirements of carrying corrosion liquid and etchant gas in addition.In the composite bimetal pipe technical field, the technical problem that current need dissect solution is the bend pipe that composite bimetal pipe provides a kind of corrosion protection long service life that is coupled to each other.
Summary of the invention
The utility model problem to be solved is to overcome the shortcoming that above-mentioned bimetal composite-curve exists, and a kind of intensity height, corrosion resistance and good, long service life, two ends metallurgical machinery formula bimetal composite-curve that cost is low are provided.
Solving the problems of the technologies described above the technological scheme that is adopted is: the middle part of matrix bend pipe is a bending section; The two ends of the bending section straight length that has been connected as a single entity; In the matrix bend pipe, be provided with the lining bend pipe; The distance of the same side end of the end of lining bend pipe and matrix bend pipe is 10～50mm, and the metallurgy combination layer is piled in the two ends welding of the two ends of lining bend pipe and matrix bend pipe.
The length of the matrix bend pipe two ends flow development length of the utility model is at least 200mm, and two ends straight pipe portion length is identical or inequality.
The internal diameter of the metallurgy combination layer of the utility model is identical with the internal diameter of lining bend pipe, and the outer end of metallurgy combination layer is positioned on the exterior edge face of matrix bend pipe.
The bend angle a of the matrix bend pipe bending section of the utility model is 5 °～90 °.
The matrix bend pipe straight length of the utility model is interior through identical with bending section, and the outer of straight length and bending section is 40～1200mm through D, matrix bend pipe straight length outer end and metallurgy combination layer outer end in same plane or matrix bend pipe straight length outer end be processed with groove.
The radius of curvature R of the matrix bend pipe bending section of the utility model is at least 3 times of matrix bend pipe D outer diameter.
The thickness t of the lining bend pipe of the utility model is 0.5～3mm.
The utility model adopts a compound circle lining bend pipe in the matrix bend pipe; Adopt soldering or overlaying method that the end and the welding of matrix bend pipe of lining bend pipe are connected as a single entity at the two ends of matrix bend pipe inside liner bend pipe; Forming a circle overlay cladding is the metallurgy combination layer; Possesses the excellent corrosion resisting property of matrix bend pipe excellent mechanical property and lining material; Solved and adopted the defective that the existing corrosion resisting property of single metal winding pipe is low or price is high, made it have intensity height, corrosion resistance and good, long service life, production low cost and other advantages, can promote the use of in technical fields such as oil and chemical industry.
Description of drawings
Fig. 1 is an embodiment's of the utility model a structural representation.
Fig. 2 is matrix bend pipe 1 straight length outer end and the metallurgy combination layer 3 outer end structural representation in same plane not of the utility model.
Embodiment
To the utility model further explain, but the utility model is not limited to these embodiments below in conjunction with accompanying drawing and embodiment.
In Fig. 1, the two ends metallurgical machinery formula bimetal composite-curve of present embodiment is made up of matrix bend pipe 1, lining bend pipe 2,3 connection of metallurgy combination layer.
The middle part of matrix bend pipe 1 is a bending section, the two ends of the bending section straight length that has been connected as a single entity, and the length of an end straight length L1 is 200mm; The length of the other end straight length L2 is 200mm, and matrix bend pipe 1 is a weldless tube, and straight length is interior through identical with bending section; The D outer diameter of straight length and bending section is 600mm; The bent angle alpha of matrix bend pipe 1 bending section is 45 °, and the radius of curvature R of matrix bend pipe 1 bending section is 1800mm, and promptly the radius of curvature R of matrix bend pipe 1 bending section is 3 times of matrix bend pipe 1 D outer diameter.
Adopt metallurgical complex method that the end and 1 welding of matrix bend pipe of lining bend pipe 2 are connected as a single entity at the two ends of matrix bend pipe 1 inside liner bend pipe 2; Forming a circle overlay cladding is metallurgy combination layer 3; The internal diameter of metallurgy combination layer 3 is identical with the internal diameter of lining bend pipe 2; The outer end of metallurgy combination layer 3 is positioned on the exterior edge face of matrix bend pipe 1, and weld overlay materials is identical or close with the material of lining bend pipe 2, is prepared into two ends metallurgical machinery formula bimetal composite-curve.
The two ends metallurgical machinery formula bimetal composite-curve of this structure; When carrying corrosion liquid and etchant gas; Corrosion liquid and etchant gas can not enter into gap internal corrosion matrix bend pipe 1 internal surface between matrix bend pipe 1 and the inside liner bend pipe 2, have prolonged the working life of bimetal composite-curve.
In the present embodiment, the middle part of matrix bend pipe 1 is a bending section, the two ends of the bending section straight length that has been connected as a single entity; The length of one end straight length L1 is 300mm; The length of the other end straight length L2 is 250mm, and matrix bend pipe 1 is a weldless tube, and straight length is interior through identical with bending section; The D outer diameter of straight length and bending section is 40mm; The bent angle alpha of matrix bend pipe 1 bending section is 5 °, and the radius of curvature R of matrix bend pipe 1 bending section is 160mm, and promptly the radius of curvature R of matrix bend pipe 1 bending section is 4 times of matrix bend pipe 1 D outer diameter.
In matrix bend pipe 1, adopt the detonation lining method to be compounded with lining bend pipe 2, the distance of the same side end of the end of lining bend pipe 2 and matrix bend pipe 1 is 10mm, and the thickness t of lining bend pipe 2 is 0.5mm.Combine as a whole in the two ends welding of matrix bend pipe 1 with inside liner bend pipe 2; Forming a circle overlay cladding is metallurgy combination layer 3; The internal diameter of metallurgy combination layer 3 is identical with the internal diameter of lining bend pipe 2; The outer end of metallurgy combination layer 3 is positioned at the exterior edge face of matrix bend pipe 1, and weld overlay materials is identical or close with the material of lining bend pipe 2, is prepared into two ends metallurgical machinery formula bimetal composite-curve.
In the present embodiment, the middle part of matrix bend pipe 1 is a bending section, the two ends of the bending section straight length that has been connected as a single entity; The length of one end straight length L1 is 400mm; The length of the other end straight length L2 is 400mm, and matrix bend pipe 1 is a weldless tube, and straight length is interior through identical with bending section; The D outer diameter of straight length and bending section is 1200mm; The bent angle alpha of matrix bend pipe 1 bending section is 90 °, and the radius of curvature R of matrix bend pipe 1 bending section is 3600mm, and promptly the radius of curvature R of matrix bend pipe 1 bending section is 3 times of matrix bend pipe 1 D outer diameter.
In matrix bend pipe 1, adopt the detonation lining method to be compounded with lining bend pipe 2, the distance of the same side end of the end of lining bend pipe 2 and matrix bend pipe 1 is 50mm, and the thickness t of lining bend pipe 2 is 3mm.Combine as a whole in the two ends welding of matrix bend pipe 1 with inside liner bend pipe 2; Forming a circle overlay cladding is metallurgy combination layer 3; The internal diameter of metallurgy combination layer 3 is identical with the internal diameter of lining bend pipe 2; The outer end of metallurgy combination layer 3 is positioned at the exterior edge face of matrix bend pipe 1, and weld overlay materials is identical or close with the material of lining bend pipe 2, is prepared into two ends metallurgical machinery formula bimetal composite-curve.
Embodiment 4
In above embodiment 1～3, the end of matrix bend pipe 1 is processed with 30 ° groove, is used for being connected with the composite bimetal pipe welding, and matrix bend pipe 1 other geometrical shape is identical with respective embodiments.In matrix bend pipe 1, adopt the detonation lining method to be compounded with lining bend pipe 2, the end of lining bend pipe 2 is identical with respective embodiments with the distance of the same side end of matrix bend pipe 1, and the thickness t of lining bend pipe 2 is identical with respective embodiments.
Claims (7)
1. two ends metallurgical machinery formula bimetal composite-curve; The middle part of matrix bend pipe (1) is a bending section; The two ends of the bending section straight length that has been connected as a single entity; It is characterized in that: in matrix bend pipe (1), be provided with lining bend pipe (2), the distance of the same side end of the end of lining bend pipe (2) and matrix bend pipe (1) is 10～50mm, and metallurgy combination layer (3) is piled in the two ends welding of the two ends of lining bend pipe (2) and matrix bend pipe (1).
2. according to the described two ends of claim 1 metallurgical machinery formula bimetal composite-curve, it is characterized in that: the length of described matrix bend pipe (1) two ends flow development length is at least 200mm, and two ends straight pipe portion length is identical or inequality.
3. according to the described two ends of claim 1 metallurgical machinery formula bimetal composite-curve, it is characterized in that: the internal diameter of described metallurgy combination layer (3) is identical with the internal diameter of lining bend pipe (2), and the outer end of metallurgy combination layer (3) is positioned on the exterior edge face of matrix bend pipe (1).
4. according to the described two ends of claim 1 metallurgical machinery formula bimetal composite-curve, it is characterized in that: the bend angle a of described matrix bend pipe (1) bending section is 5 °～90 °.
5. according to the described two ends of claim 1 metallurgical machinery formula bimetal composite-curve; It is characterized in that: described matrix bend pipe (1) straight length is interior through identical with bending section; The outer of straight length and bending section is 40～1200mm through D, matrix bend pipe (1) straight length outer end and metallurgy combination layer (3) outer end in same plane or matrix bend pipe (1) straight length outer end be processed with groove.
6. according to any described two ends metallurgical machinery formula bimetal composite-curve in the claim 1～5, it is characterized in that: the radius of curvature R of described matrix bend pipe (1) bending section is at least 3 times of matrix bend pipe (1) D outer diameter.
7. according to claim 1 or 3 described two ends metallurgical machinery formula bimetal composite-curves, it is characterized in that: the thickness t of described lining bend pipe (2) is 0.5～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204259676U CN202349482U (en) | 2011-11-01 | 2011-11-01 | Two-end metallurgy mechanical double-metal composite bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204259676U CN202349482U (en) | 2011-11-01 | 2011-11-01 | Two-end metallurgy mechanical double-metal composite bent pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349482U true CN202349482U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204259676U Expired - Lifetime CN202349482U (en) | 2011-11-01 | 2011-11-01 | Two-end metallurgy mechanical double-metal composite bent pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349482U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2528713A (en) * | 2014-07-30 | 2016-02-03 | Technip France | Bi-metallic mechanically lined pipe |
| CN107023729A (en) * | 2017-06-02 | 2017-08-08 | 江苏兴洋管业股份有限公司 | A kind of Double-metal composite elbow pipe fitting |
-
2011
- 2011-11-01 CN CN2011204259676U patent/CN202349482U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2528713A (en) * | 2014-07-30 | 2016-02-03 | Technip France | Bi-metallic mechanically lined pipe |
| NO20170106A1 (en) * | 2014-07-30 | 2017-01-24 | Technip France | Bi-metallic mechanically lined pipe with metallurgical bonding at its ends; method of manufacturing such bi-metallic lined pipe |
| GB2528713B (en) * | 2014-07-30 | 2017-10-25 | Technip France | Method of manufacturing a bi-metallic mechanically lined pipe |
| NO343167B1 (en) * | 2014-07-30 | 2018-11-19 | Technip France | A method of manufacturing a bi-metallic mechanically lined pipe |
| CN107023729A (en) * | 2017-06-02 | 2017-08-08 | 江苏兴洋管业股份有限公司 | A kind of Double-metal composite elbow pipe fitting |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |