CN203948802U - A kind of composite bimetal pipe - Google Patents
A kind of composite bimetal pipe Download PDFInfo
- Publication number
- CN203948802U CN203948802U CN201420326968.9U CN201420326968U CN203948802U CN 203948802 U CN203948802 U CN 203948802U CN 201420326968 U CN201420326968 U CN 201420326968U CN 203948802 U CN203948802 U CN 203948802U
- Authority
- CN
- China
- Prior art keywords
- base tube
- composite bimetal
- pipe
- overlay cladding
- bimetal pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 58
- 238000005253 cladding Methods 0.000 claims abstract description 45
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000001997 corrosion-resisting alloy Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model discloses a kind of composite bimetal pipe, comprise base tube and the internal lining pipe that is set in base tube inner side, the length of described internal lining pipe is less than the length of base tube, on the two ends inwall of described base tube, all offer annular groove, in described annular groove, be welded with the first overlay cladding, the internal diameter of described the first overlay cladding is identical with the internal diameter of base tube, on the inwall of described the first overlay cladding and the end that is positioned at internal lining pipe is welded with the second overlay cladding, the end of described the second overlay cladding is concordant with the end of base tube, the internal diameter of described the second overlay cladding is identical with the internal diameter of internal lining pipe, described the second overlay cladding is less than annular groove along the axial degree of depth of composite bimetal pipe along the axial degree of depth of composite bimetal pipe.Composite bimetal pipe of the present utility model by offering annular groove and weld the first overlay cladding on the inwall of base tube two ends, can ensure the effectively compound of base tube and internal lining pipe pipe end, guarantee that the internal lining pipe of composite bimetal pipe is not subject to the impact of base tube in boxing process.
Description
Technical field
The utility model belongs to tubular metal product technical field, is specifically related to a kind of composite bimetal pipe.
Background technique
Metallic conduit is widely used aspect oil and gas transmission, and carbon steel tube is most widely used, but poor corrosion resistance.In corrosion resisting alloy pipe, composite bimetal pipe, because of the feature such as its superior mechanical property, good decay resistance, weldability be strong, is widely used in Oil and Natural Gas Transportation Pipeline.
At present, composite bimetal pipe mainly adopts the preparation of blast composite algorithm, by base tube and internal lining pipe assembling, then boundling explosive is placed on internal lining pipe axis, the explosive power of producing by explosive moment, cause in tank that hydraulic pressure moment increases, the water pressure pushing internal lining pipe that moment increases expands outwardly in diametric(al), inwardly shrink at axial direction, the internal lining pipe expanding outwardly, under the effect of hydraulic pressure, is expanded on the internal surface of outer base tube, and under the effect of hydraulic pressure, continue expansion with outer base tube, until pressure disappearance, compound molding.The base tube of the composite bimetal pipe after compound of exploding is concordant with internal lining pipe pipe end, be difficult for carrying out built-up welding, and surfacing quality is not good.
Model utility content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide a kind of composite bimetal pipe.This composite bimetal pipe by offering annular groove on the inwall of base tube two ends, and in annular groove, weld the first overlay cladding, can ensure the effectively compound of base tube and internal lining pipe pipe end, guarantee that the internal lining pipe of composite bimetal pipe is not subject to the impact of base tube in boxing process, has ensured the welding procedure quality of thin-wall stainless steel liner.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of composite bimetal pipe, it is characterized in that, comprise base tube and the internal lining pipe that is set in base tube inner side, the length of described internal lining pipe is less than the length of base tube, on the two ends inwall of described base tube, all offer annular groove, in described annular groove, be welded with the first overlay cladding, the internal diameter of described the first overlay cladding is identical with the internal diameter of base tube, on the inwall of described the first overlay cladding and the end that is positioned at internal lining pipe is welded with the second overlay cladding, the end of described the second overlay cladding is concordant with the end of base tube, the internal diameter of described the second overlay cladding is identical with the internal diameter of internal lining pipe, described the second overlay cladding is less than annular groove along the axial degree of depth of composite bimetal pipe along the axial degree of depth of composite bimetal pipe.
Above-mentioned a kind of composite bimetal pipe, described annular groove is 40mm～60mm along the axial degree of depth of composite bimetal pipe.
Above-mentioned a kind of composite bimetal pipe, described annular groove is 2mm～3mm perpendicular to the axial degree of depth of composite bimetal pipe.
Above-mentioned a kind of composite bimetal pipe, described the second overlay cladding is 20mm～30mm along the axial degree of depth of composite bimetal pipe.
Above-mentioned a kind of composite bimetal pipe, described base tube is carbon steel base tube.
Above-mentioned a kind of composite bimetal pipe, described internal lining pipe is stainless steel inner lining tube.
Above-mentioned a kind of composite bimetal pipe, described the first overlay cladding is stainless steel weld overlays.
Above-mentioned a kind of composite bimetal pipe, described the second overlay cladding is stainless steel weld overlays.
The utility model compared with prior art has the following advantages:
1, composite bimetal pipe of the present utility model is by offer annular groove on the inwall of base tube two ends, and in annular groove, welds the first overlay cladding, can ensure the effectively compound of base tube and internal lining pipe pipe end.
2, structure of the present utility model has guaranteed that the internal lining pipe of composite bimetal pipe is not subject to the impact of base tube in boxing process, has ensured the welding procedure quality of thin-wall stainless steel liner.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model composite bimetal pipe.
Description of reference numerals:
1-base tube; 2-internal lining pipe; The 3-the first overlay cladding;
The 4-the second overlay cladding.
Embodiment
Embodiment 1
A kind of composite bimetal pipe as shown in Figure 1, comprise base tube 1 and the internal lining pipe 2 that is set in base tube 1 inner side, the length of described internal lining pipe 2 is less than the length of base tube 1, on the two ends inwall of described base tube 1, all offer annular groove, in described annular groove, be welded with the first overlay cladding 3, the internal diameter of described the first overlay cladding 3 is identical with the internal diameter of base tube 1, on the inwall of described the first overlay cladding 3 and end that is positioned at internal lining pipe 2 is welded with the second overlay cladding 4, the end of described the second overlay cladding 4 is concordant with the end of base tube 1, the internal diameter of described the second overlay cladding 4 is identical with the internal diameter of internal lining pipe 2, described the second overlay cladding 4 is less than annular groove along the axial degree of depth of composite bimetal pipe along the axial degree of depth of composite bimetal pipe.
In the present embodiment, described annular groove is 50mm along the axial degree of depth of composite bimetal pipe.
In the present embodiment, described annular groove is 2mm perpendicular to the axial degree of depth of composite bimetal pipe.
In the present embodiment, described the second overlay cladding 4 is 25mm along the axial degree of depth of composite bimetal pipe.
In the present embodiment, described base tube 1 is carbon steel base tube.
In the present embodiment, described internal lining pipe 2 is stainless steel inner lining tube.
In the present embodiment, described the first overlay cladding 3 is stainless steel weld overlays.
In the present embodiment, described the second overlay cladding 4 is stainless steel weld overlays.
Embodiment 2
The present embodiment is identical with embodiment 1, wherein difference is: described annular groove is 40mm along the axial degree of depth of composite bimetal pipe, described annular groove is 3mm perpendicular to the axial degree of depth of composite bimetal pipe, and described the second overlay cladding 4 is 20mm along the axial degree of depth of composite bimetal pipe.
Embodiment 3
The present embodiment is identical with embodiment 1, wherein difference is: described annular groove is 60mm along the axial degree of depth of composite bimetal pipe, described annular groove is 2.5mm perpendicular to the axial degree of depth of composite bimetal pipe, and described the second overlay cladding 4 is 30mm along the axial degree of depth of composite bimetal pipe.
Composite bimetal pipe of the present utility model by offering annular groove on the inwall of base tube two ends, and in annular groove, weld the first overlay cladding, can ensure the effectively compound of base tube and internal lining pipe pipe end, guarantee that the internal lining pipe of composite bimetal pipe is not subject to the impact of base tube in boxing process, has ensured the welding procedure quality of thin-wall stainless steel liner.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
1. a composite bimetal pipe, it is characterized in that, comprise base tube (1) and be set in the internal lining pipe (2) of base tube (1) inner side, the length of described internal lining pipe (2) is less than the length of base tube (1), on the two ends inwall of described base tube (1), all offer annular groove, in described annular groove, be welded with the first overlay cladding (3), the internal diameter of described the first overlay cladding (3) is identical with the internal diameter of base tube (1), on the inwall of described the first overlay cladding (3) and the end that is positioned at internal lining pipe (2) is welded with the second overlay cladding (4), the end of described the second overlay cladding (4) is concordant with the end of base tube (1), the internal diameter of described the second overlay cladding (4) is identical with the internal diameter of internal lining pipe (2), described the second overlay cladding (4) is less than annular groove along the axial degree of depth of composite bimetal pipe along the axial degree of depth of composite bimetal pipe.
2. a kind of composite bimetal pipe according to claim 1, is characterized in that, described annular groove is 40mm～60mm along the axial degree of depth of composite bimetal pipe.
3. a kind of composite bimetal pipe according to claim 1, is characterized in that, described annular groove is 2mm～3mm perpendicular to the axial degree of depth of composite bimetal pipe.
4. a kind of composite bimetal pipe according to claim 1, is characterized in that, described the second overlay cladding (4) is 20mm～30mm along the axial degree of depth of composite bimetal pipe.
5. a kind of composite bimetal pipe according to claim 1, is characterized in that, described base tube (1) is carbon steel base tube.
6. a kind of composite bimetal pipe according to claim 1, is characterized in that, described internal lining pipe (2) is stainless steel inner lining tube.
7. a kind of composite bimetal pipe according to claim 1, is characterized in that, described the first overlay cladding (3) is stainless steel weld overlays.
8. a kind of composite bimetal pipe according to claim 1, is characterized in that, described the second overlay cladding (4) is stainless steel weld overlays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326968.9U CN203948802U (en) | 2014-06-18 | 2014-06-18 | A kind of composite bimetal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326968.9U CN203948802U (en) | 2014-06-18 | 2014-06-18 | A kind of composite bimetal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948802U true CN203948802U (en) | 2014-11-19 |
Family
ID=51890838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420326968.9U Withdrawn - After Issue CN203948802U (en) | 2014-06-18 | 2014-06-18 | A kind of composite bimetal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948802U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019288A (en) * | 2014-06-18 | 2014-09-03 | 西安向阳航天材料股份有限公司 | Bimetal composite pipe and manufacturing process thereof |
| CN105351656A (en) * | 2015-11-12 | 2016-02-24 | 海洋石油工程股份有限公司 | Mechanical composite pipe with connection holes and manufacturing method of mechanical composite pipe |
| CN112576200A (en) * | 2019-09-27 | 2021-03-30 | 宝山钢铁股份有限公司 | Steel pipe air-tight seal structure with inner liner |
-
2014
- 2014-06-18 CN CN201420326968.9U patent/CN203948802U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019288A (en) * | 2014-06-18 | 2014-09-03 | 西安向阳航天材料股份有限公司 | Bimetal composite pipe and manufacturing process thereof |
| CN104019288B (en) * | 2014-06-18 | 2016-01-06 | 西安向阳航天材料股份有限公司 | A kind of composite bimetal pipe and manufacturing process thereof |
| CN105351656A (en) * | 2015-11-12 | 2016-02-24 | 海洋石油工程股份有限公司 | Mechanical composite pipe with connection holes and manufacturing method of mechanical composite pipe |
| CN112576200A (en) * | 2019-09-27 | 2021-03-30 | 宝山钢铁股份有限公司 | Steel pipe air-tight seal structure with inner liner |
| CN112576200B (en) * | 2019-09-27 | 2023-03-14 | 宝山钢铁股份有限公司 | Steel pipe air-tight seal structure with inner liner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |