CN113108140A - Heat insulation oil pipe - Google Patents
Heat insulation oil pipe Download PDFInfo
- Publication number
- CN113108140A CN113108140A CN202110454947.XA CN202110454947A CN113108140A CN 113108140 A CN113108140 A CN 113108140A CN 202110454947 A CN202110454947 A CN 202110454947A CN 113108140 A CN113108140 A CN 113108140A
- Authority
- CN
- China
- Prior art keywords
- pipe
- connecting sleeve
- heat insulation
- sealing gasket
- bodies
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000010425 asbestos Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
A heat insulation oil pipe belongs to the technical field of petroleum equipment, and particularly relates to a heat insulation oil pipe structure. The heat insulation oil pipe provided by the invention has a good heat insulation effect and a stable structure. The invention comprises a pipe body composed of an inner pipe and an outer pipe, wherein the two pipe bodies are connected through a connecting sleeve, and the invention is characterized in that: the end part of the inner pipe is provided with a flange for sealing a cavity between the inner pipe and the outer pipe; the inner surface of the connecting sleeve is provided with threads, and the outer pipes of the two pipe bodies are connected with the two ends of the connecting sleeve through the threads; a sealing gasket is arranged between the end parts of the two pipe bodies.
Description
Technical Field
The invention belongs to the technical field of petroleum equipment, and particularly relates to a heat-insulating oil pipe structure.
Background
As shown in fig. 3, the existing insulated tubing structure forms an outer expanded edge 20 only at the end of an inner tube 50 by upsetting, and the outer expanded edge 20 contacts with the inner wall of an outer tube 30 to close the cavity between the inner tube 50 and the outer tube 30; in order to ensure that the inner pipe 50 can contact with the inner wall of the outer pipe 30, the length of the outer pipe 30 is usually longer than that of the inner pipe, and then the end part of the outer pipe 30 is processed with a thread 40 and is in threaded connection with the connecting sleeve 10; in the heat insulation oil pipe with the structure, the pipe bodies at two ends of the connecting sleeve 10 are of a double-layer tubular structure with a cavity; the connecting sleeve 10 is of a single-layer structure, so that the heat insulation performance is poor, and a large amount of heat can be lost at the connecting sleeve 10 during use, thereby wasting energy.
Disclosure of Invention
Aiming at the problems, the invention provides the heat insulation oil pipe with good heat insulation effect and stable structure.
In order to achieve the purpose, the invention adopts the following technical scheme that the invention comprises a pipe body formed by an inner pipe and an outer pipe, the two pipe bodies are connected through a connecting sleeve, and the invention is characterized in that: the end part of the inner pipe is provided with a flange for sealing a cavity between the inner pipe and the outer pipe; the inner surface of the connecting sleeve is provided with threads, and the outer pipes of the two pipe bodies are connected with the two ends of the connecting sleeve through the threads; a sealing gasket is arranged between the end parts of the two pipe bodies.
In a preferred embodiment of the present invention, the flange of the inner pipe is formed by upsetting.
In another preferred embodiment of the present invention, the edge of the flange is welded to the inner surface of the outer tube.
As a third preferred aspect of the present invention, the end of the outer pipe is provided with an upset, and the surface of the upset of the outer pipe is provided with a thread matched with the connecting sleeve.
As a fourth preferred scheme of the invention, a clamping groove matched with the sealing gasket is arranged in the middle of the connecting sleeve.
The invention has the beneficial effects that: 1. according to the invention, the cavity of the inner pipe and the cavity of the outer pipe are sealed in a flanging mode, planes can be formed at the end parts of the pipe bodies, and the sealing gasket is arranged at the joint of the planes of the two pipe bodies, so that the liquid in the pipe bodies is prevented from directly contacting the connecting sleeve, and the heat loss at the connecting sleeve is greatly reduced.
2. The inner pipe of the invention can realize equal length with the outer pipe through the flanging structure, and the condition that the single-layer outer pipe is contacted with liquid in the pipe body is ensured not to occur, thereby further improving the heat-preservation and energy-saving effects.
3. According to the invention, the inner pipe flanging is formed in an upsetting mode, and the structural characteristics after upsetting ensure that the end part of the inner pipe is compact and stable in structure and reliable in connection; the fillet formed naturally after upsetting can avoid the problem of stress concentration when the inner pipe is subjected to axial force, and the service life is prolonged.
4. The upset part is arranged at the end part of the outer pipe, so that the overall strength of the outer pipe is not reduced after subsequent thread machining. If not upset, the thread root diameter will be smaller than the outside diameter of the pipe body after the thread is machined. The strength of the thread part is lower than that of the rest parts of the pipe body, and the thread is processed after upsetting, so that the strength of the whole pipe body can be ensured to be uniform.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the inner tube in which the burring structure is formed by upsetting.
Fig. 3 is a schematic structural view of a conventional insulated oil pipe.
In the attached drawing, 1 is an inner pipe, 2 is an outer pipe, 3 is a connecting sleeve, 4 is a sealing gasket, 5 is a clamping groove, 6 is a flanging, 7 is a pipe body, and 8 is an upset part.
Detailed Description
The invention comprises a pipe body 7 consisting of an inner pipe 1 and an outer pipe 2, wherein the two pipe bodies 7 are connected through a connecting sleeve 3, and the invention is characterized in that: the end part of the inner pipe 1 is provided with a flanging 6 for sealing the cavity between the inner pipe 1 and the outer pipe 2; the inner surface of the connecting sleeve 3 is provided with threads, and the outer pipes 2 of the two pipe bodies 7 are connected with the two ends of the connecting sleeve 3 through the threads; a sealing gasket 4 is arranged between the ends of the two tubes 7.
In a preferred embodiment of the invention, the flange 6 of the inner tube 1 is formed by upsetting.
As another preferable mode of the present invention, the edge of the flange 6 is welded to the inner surface of the outer tube 2.
As a third preferred scheme of the invention, the end part of the outer pipe 2 is provided with an upset part 8, and the surface of the upset part 8 of the outer pipe 2 is provided with threads matched with the connecting sleeve 3.
As a fourth preferred scheme of the present invention, a clamping groove 5 matched with the sealing gasket 4 is arranged in the middle of the connecting sleeve 3.
The sealing gasket 4 may be made of asbestos material.
The end part of the inner pipe 1 is subjected to upsetting treatment by an upsetting machine, and is welded with the outer pipe 2 into a whole after being treated; a clamping groove 5 is processed in the center of the connecting sleeve 3, a sealing gasket 4 is placed in the clamping groove 5, and two heat insulation oil pipes are respectively screwed into the connecting sleeve 3 from two ends of the connecting sleeve 3; the two pipe bodies 7 are both contacted with the sealing gasket 4 to clamp the sealing gasket 4, and the assembly action of the invention is completed.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (6)
1. The utility model provides a thermal-insulated oil pipe, includes body (7) that constitute by inner tube (1) and outer tube (2), connects its characterized in that through adapter sleeve (3) between two body (7): the end part of the inner pipe (1) is provided with a flanging (6) for sealing a cavity between the inner pipe (1) and the outer pipe (2); the inner surface of the connecting sleeve (3) is provided with threads, and the outer pipes (2) of the two pipe bodies (7) are connected with the two ends of the connecting sleeve (3) through the threads; a sealing gasket (4) is arranged between the end parts of the two pipe bodies (7).
2. The insulated tubing of claim 1, wherein: the flange (6) of the inner tube (1) is formed by upsetting.
3. The insulated tubing of claim 1, wherein: the edge of the flanging (6) is connected with the inner surface of the outer pipe (2) in a welding way.
4. The insulated tubing of claim 1, wherein: the end part of the outer pipe (2) is provided with an upset part (8), and the surface of the upset part (8) of the outer pipe (2) is provided with a thread matched with the connecting sleeve (3).
5. The insulated tubing of claim 1, wherein: the middle part in the connecting sleeve (3) is provided with a clamping groove (5) matched with the sealing gasket (4).
6. The insulated tubing of claim 1, wherein: the sealing gasket (4) can be made of asbestos material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110454947.XA CN113108140A (en) | 2021-04-26 | 2021-04-26 | Heat insulation oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110454947.XA CN113108140A (en) | 2021-04-26 | 2021-04-26 | Heat insulation oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113108140A true CN113108140A (en) | 2021-07-13 |
Family
ID=76721917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110454947.XA Pending CN113108140A (en) | 2021-04-26 | 2021-04-26 | Heat insulation oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113108140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031170A (en) * | 2022-06-30 | 2022-09-09 | 江南大学 | Mechanical pipeline damage sensor array device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396211A (en) * | 1981-06-10 | 1983-08-02 | Baker International Corporation | Insulating tubular conduit apparatus and method |
| CN85106192A (en) * | 1985-08-17 | 1987-03-04 | 巴布科克和威尔科斯公司 | Insulation steam injects the insertion pipe fitting of pipeline |
| RU2129202C1 (en) * | 1997-08-12 | 1999-04-20 | Открытое акционерное общество "Удмуртнефть" | Heat-insulated pipe string |
| CN101705795A (en) * | 2009-11-20 | 2010-05-12 | 湖北贵族真空科技股份有限公司 | Vacuum composite heat-insulating pipeline connecting structure |
| CN102086758A (en) * | 2010-12-31 | 2011-06-08 | 江苏常宝钢管股份有限公司 | Integral-assembling type heat-insulating oil pipe connection structure |
| CN202990889U (en) * | 2012-11-23 | 2013-06-12 | 中国石油集团渤海石油装备制造有限公司 | Coating vacuum heat-insulating oil pipe |
| CN203161103U (en) * | 2013-04-08 | 2013-08-28 | 胜利油田孚瑞特石油装备有限责任公司 | Prestressed vacuum heat-insulating sleeve |
-
2021
- 2021-04-26 CN CN202110454947.XA patent/CN113108140A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396211A (en) * | 1981-06-10 | 1983-08-02 | Baker International Corporation | Insulating tubular conduit apparatus and method |
| CN85106192A (en) * | 1985-08-17 | 1987-03-04 | 巴布科克和威尔科斯公司 | Insulation steam injects the insertion pipe fitting of pipeline |
| RU2129202C1 (en) * | 1997-08-12 | 1999-04-20 | Открытое акционерное общество "Удмуртнефть" | Heat-insulated pipe string |
| CN101705795A (en) * | 2009-11-20 | 2010-05-12 | 湖北贵族真空科技股份有限公司 | Vacuum composite heat-insulating pipeline connecting structure |
| CN102086758A (en) * | 2010-12-31 | 2011-06-08 | 江苏常宝钢管股份有限公司 | Integral-assembling type heat-insulating oil pipe connection structure |
| CN202990889U (en) * | 2012-11-23 | 2013-06-12 | 中国石油集团渤海石油装备制造有限公司 | Coating vacuum heat-insulating oil pipe |
| CN203161103U (en) * | 2013-04-08 | 2013-08-28 | 胜利油田孚瑞特石油装备有限责任公司 | Prestressed vacuum heat-insulating sleeve |
Non-Patent Citations (1)
| Title |
|---|
| 美国金属学会: "《金属手册-成型和锻造》", 31 May 1994, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031170A (en) * | 2022-06-30 | 2022-09-09 | 江南大学 | Mechanical pipeline damage sensor array device |
| CN115031170B (en) * | 2022-06-30 | 2023-09-05 | 江南大学 | Mechanical type pipeline damage sensor array device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210713 |
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| RJ01 | Rejection of invention patent application after publication |