CN112361095A - Equipment and method for quickly installing pipeline based on coil heating - Google Patents
Equipment and method for quickly installing pipeline based on coil heating Download PDFInfo
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- CN112361095A CN112361095A CN202011343203.2A CN202011343203A CN112361095A CN 112361095 A CN112361095 A CN 112361095A CN 202011343203 A CN202011343203 A CN 202011343203A CN 112361095 A CN112361095 A CN 112361095A
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- Prior art keywords
- sleeve
- sub
- subduct
- pipeline
- frame
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- 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
- F16L13/004—Shrunk pipe-joints
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- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
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- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a steel pipe rapid installation device based on coil heating. When the coil heating mechanism works, the sleeve is heated and then forms clearance fit with the first sub-pipeline and the second sub-pipeline, and when the coil heating mechanism does not work, the sleeve is cooled and then forms interference fit with the first sub-pipeline and the second sub-pipeline. The first and second crawling mechanisms are coaxially arranged such that the first subduct faces the second subduct coaxially into the sleeve. This configuration reduces the number of welding steps and reduces the cost. The temperature difference assembly method can be fully automated, reduces the manual alignment and splicing work, and improves the installation speed of large pipelines. The invention also discloses a steel pipe rapid installation method based on coil heating.
Description
Technical Field
The invention relates to the installation technology of pipelines, in particular to a device and a method for quickly installing a pipeline based on coil heating.
Background
The large-size pipeline can be used for long-distance oil and gas transportation. The connection between the pipelines can adopt a non-welding splicing structure. The quick splicing of CN210319009U has a plurality of subducts, and external screw thread I and external screw thread II are provided at two ends of the outer wall of the subduct, and the external screw thread I and the external screw thread II are spliced end to form a connecting external screw thread when two subducts are connected end to end. WO0239002a1 discloses a splicing device for sealing two pipe sections between a pipe space. The splicing device comprises a first body and a second body, which are formed as one piece. A pair of fasteners are mounted to the first and second body portions. Large size pipes are not easy to rotate and such a non-threaded structure may be used. CN203115352U discloses a grooved expansion joint pipe, which includes a pipe and a clamp for connecting the pipe. A sealing rubber ring is arranged in the clamp, one end of the inner pipe is inserted in the outer pipe and can perform axial displacement in the outer pipe, a circle of limiting ring protruding out of the inner wall is formed on the inner wall of the pipe orifice end of the outer pipe, and a circle of limiting ring protruding out of the outer wall is formed on the outer wall of the pipe orifice end of the inner pipe. This publication does not disclose how the stop collar achieves a clearance seal.
Disclosure of Invention
The invention provides equipment and a method for quickly installing steel pipes based on coil heating, which improve the alignment speed and splicing efficiency of the steel pipes, reduce the cost and shorten the working hours.
The utility model provides a quick erection equipment of steel pipe based on coil heating, the steel pipe includes first subduct, second subduct and sleeve, and first subduct and the at least partial sleeve that is located of second subduct, its characterized in that, quick erection equipment of steel pipe includes:
a frame;
the first crawling mechanisms are arranged on the inner side of the frame and can move along the outer side face of the first sub-pipeline;
a plurality of second crawling mechanisms mounted inside the frame, the second crawling mechanisms being movable along the outer side of the second subduct, the second crawling mechanisms defining a second subduct coaxial with the first subduct;
the coil heating mechanism is positioned between the first crawling mechanism and the second crawling mechanism, the coil heating mechanism is composed of a first arc-shaped portion and a second arc-shaped portion, the first arc-shaped portion and the second arc-shaped portion can move along the framework in the radial direction, and the sleeve is positioned between the first arc-shaped portion and the second arc-shaped portion.
In the invention, when the coil heating mechanism works, the sleeve is heated and then forms clearance fit with the first sub-pipeline and the second sub-pipeline, and when the coil heating mechanism does not work, the sleeve is cooled and then forms interference fit with the first sub-pipeline and the second sub-pipeline.
In the invention, the first arc-shaped portion has a guide portion slidably mounted in the frame.
In the invention, the frame has a screw groove, a spring is disposed in the screw groove, a lower end of the spring is connected to the first arc portion, and an upper end of the spring is connected to a screw.
In the invention, the frame is composed of a first frame body and a second frame body, and the first frame body and the second frame body are both semicircular.
In the invention, the two sides of the frame are provided with arc-shaped guide surfaces, and the arc-shaped guide surfaces guide the first sub-pipeline and the second sub-pipeline into the frame.
In the invention, the first crawling mechanism comprises an air cylinder, a driver, a telescopic assembly, a crawler assembly and two groups of connecting rods, wherein one end of each connecting rod is hinged to the frame, the other end of each connecting rod is hinged to the crawler assembly, the air cylinder is connected with the crawler assembly through the telescopic assembly, and the adjacent crawler assemblies move oppositely under the action of the air cylinder.
A steel pipe rapid installation method based on coil heating is used for installing a first subduct and a second subduct at least partially in a sleeve and is characterized in that,
the sleeve is arranged in the coil heating mechanism, and the coil heating mechanism heats the sleeve to increase the inner diameter of the sleeve;
the first crawling mechanism moves along the outer side wall of the first sub-pipeline and pushes the first sub-pipeline into the sleeve, and the second crawling mechanism moves along the outer side wall of the second sub-pipeline and pushes the second sub-pipeline into the sleeve;
the first crawling mechanism and the second crawling mechanism which are coaxial ensure that the first sub-pipeline and the second sub-pipeline are coaxial;
the coil heating mechanism cools, the inner diameter of the sleeve is reduced, and the first sub-pipeline and the second sub-pipeline are fixed in the sleeve.
According to the steel pipe rapid installation equipment based on coil heating, the diameter of the sleeve is increased due to thermal expansion, and the first crawling mechanism and the second crawling mechanism are coaxially arranged, so that the first sub-pipeline and the second sub-pipeline coaxially and oppositely enter the sleeve. The sleeve, after cooling, reduces in diameter, securing the first subduct and the second subduct together. This configuration reduces the number of welding steps and reduces the cost. The temperature difference assembly method can be fully automated, reduces the manual alignment and splicing work, and improves the installation speed of large pipelines.
Drawings
FIG. 1 is a schematic view of a steel pipe rapid installation apparatus based on coil heating according to the present invention;
FIG. 2 is a block diagram of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a partial view of FIG. 2;
fig. 5 is a schematic view of the first crawling mechanism of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1 to 5, the steel pipe rapid installation apparatus based on coil heating of the present invention can be used for splicing and assembling large-diameter steel pipes. The large-caliber steel pipe is composed of a plurality of steel pipe sections, and can be spliced into a fluid conveying structure with the length of hundreds of meters to hundreds of kilometers according to engineering requirements. For one of the splices, the steel pipe 10 may include a first subduct 11, a second subduct 12, and a sleeve 13, the first and second subducts 11, 12 being at least partially located within the sleeve 13. The sleeve 13 maintains a seal with the contact surfaces of the first and second sub-conduits 11, 12. The steel pipe rapid installation equipment disclosed by the invention is installed by adopting a temperature difference method, welding and riveting procedures are cancelled, and the installation speed is high.
The steel pipe quick-installing apparatus includes a frame 20, three first crawling mechanisms 30, three second crawling mechanisms 40, and a coil heating mechanism 50. The frame 20 can be mounted on a slide 60, and the slide 60 is moved on the base plate 61 to change the splice position. The frame 20 is assembled from steel, for example in the form of a circular cage. The frame 20 is composed of a first frame 21 and a second frame 22, the first frame 21 and the second frame 22 are both semicircular, and both ends thereof are fixed together by pins 23.
Three first climbing mechanisms 30 are symmetrically mounted inside the frame 20, which are movable along the outer side of the first subduct 11. Three second crawling mechanisms 40 are symmetrically mounted inside the frame 20, and the second crawling mechanisms 40 can move along the outer side of the second subduct 12. The first climbing mechanism 30 and the second climbing mechanism 40 are arranged in bilateral symmetry. The second crawler 40 defines a second subduct 12 coaxial with the first subduct 11. Specifically, the first crawler mechanism 30 includes a cylinder 31, a drive 32, a telescoping assembly 33, a track assembly 34, and two sets of links 35. The link 35 is hinged at one end to the frame 20 and at the other end to the track assembly 34. The connecting rod 35, the track assembly 34 and the frame 20 (one of the longitudinal beams 25 of the frame 20) form a planar four-bar mechanism, and the track assembly 34 is always parallel to the longitudinal beam 25 in movement. The cylinder 31 is connected with the track assembly 34 through the telescopic assembly 33, the telescopic assembly 33 is composed of a first rod 36, a second rod 37 and a pressure spring 38, when the cylinder 31 presses the track assembly 34 on the outer side wall of the first sub-pipe 11, the telescopic assembly 33 is compressed and shortened, and the track assembly 34 is tightly pressed on the outer side wall of the first sub-pipe 11. Adjacent track assemblies 34 are moved toward one another by cylinder 31. The cylinders 31 of the first crawler 30 are actuated simultaneously and the track assemblies 34 are moved toward each other or in opposite directions at equal intervals to ensure that the first subduct 11 is centered in the frame 20. The drive 32 rotates the rollers 70 of the track assembly 34. Further, an output shaft 39 of the cylinder 31 is movably mounted on the longitudinal beam 25, the output shaft 39 is hinged to the telescopic assembly 33 via the moving block 26, and the moving block 26 moves along the slide groove 27. In this configuration, the output shaft 39 moves laterally without swinging inward when the cylinder 31 moves, avoiding interference with the coil heating mechanism 50. The second crawler 40 may also have a similar construction and will not be described in detail herein.
The coil heating mechanism 50 is located between the first crawling mechanism 30 and the second crawling mechanism 40, the coil heating mechanism 50 is composed of a first arc-shaped portion 51 and a second arc-shaped portion 52 which can move along the radial direction of the frame 20, and the sleeve 13 is located between the first arc-shaped portion 51 and the second arc-shaped portion 52. A medium frequency electric heating coil 53 is provided inside the first arc-shaped portion 51 and the second arc-shaped portion 52. The sleeve 13 may be installed in the coil heating mechanism 50 while opening the frame 20 in conjunction with opening the second arc portion 52. After closing the frame 20, the sleeve 13 is fixed in the coil heating mechanism 50. The first arc-shaped portion 51 is movably fixed to a sidewall of the frame 20. Wherein the first arc-shaped portion 51 has a guide portion 54, and the frame 20 has a guide groove 28, the guide portion 54 being slidable along the guide groove 28. The frame 20 has a screw groove 29, and a spring 55 is disposed in the screw groove 29, the spring 55 being connected at a lower end thereof to the first arc portion 51 and at an upper end thereof to a screw 56. Due to the spring 55, the first arc portion 51 and the second arc portion 52 are pressed close to each other outside the sleeve 13. The screw 56 can adjust the pressing action of the first arc-shaped part 51 on the outside of the sleeve 13 and can keep the sleeve 13 in the center of the frame 20. When the coil heating mechanism 50 works, the sleeve 13 is heated to form clearance fit with the first sub-pipe 11 and the second sub-pipe 12, and when the coil heating mechanism 50 does not work, the sleeve 13 is cooled to form interference fit with the first sub-pipe 11 and the second sub-pipe 12. It will be appreciated by those skilled in the art that the tolerance band for the inside diameter of the clearance fit sleeve 13 is above the tolerance band for the outside diameter of the first subduct 11 and the second subduct 12, the difference being positive in algebraic difference. The tolerance band of the inner diameter of the interference fit sleeve 13 is below the tolerance band of the outer diameters of the first subduct 11 and the second subduct 12, and the resultant algebraic difference is negative. The invention is not limited to specific values of Ymin and Ymax.
The invention discloses a steel pipe rapid installation method based on coil heating, which comprises the following steps: the sleeve 13 is installed in the coil heating mechanism 50, and the coil heating mechanism 50 heats the sleeve 13 so that the inner diameter of the sleeve 13 is increased. Excessive temperatures may cause steel pipes to temper, resulting in reduced stiffness. The heating temperature of the present invention is about 80 to 100 c and the time is about 5 to 10 minutes. The first crawler 30 moves along the outer side wall of the first subduct 11 and pushes the first subduct 11 into the sleeve 13, and the second crawler 40 moves along the outer side wall of the second subduct 12 and pushes the second subduct 12 into the sleeve 13. The coaxial first and second crawling mechanisms 30 and 40 ensure that the first subduct 11 and the second subduct 12 are coaxial. The first crawler 30 and the second crawler 40 are coaxially arranged such that the first subduct 11 coaxially faces the second subduct 12 into the sleeve 13. The coil heating mechanism 50 is cooled, the inner diameter of the sleeve 13 is reduced, and the first sub-pipe 11 and the second sub-pipe 12 are fixed in the sleeve 13. This configuration reduces the number of welding steps and reduces the cost. Because the temperature difference assembly method is fully-called and can be automatically operated, the manual alignment and splicing work is reduced, and the installation speed of the large-scale pipeline is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a quick erection equipment of steel pipe based on coil heating, the steel pipe includes first subduct, second subduct and sleeve, and first subduct and the at least partial sleeve that is located of second subduct, its characterized in that, quick erection equipment of steel pipe includes:
a frame;
the first crawling mechanisms are arranged on the inner side of the frame and can move along the outer side face of the first sub-pipeline;
a plurality of second crawling mechanisms mounted inside the frame, the second crawling mechanisms being movable along the outer side of the second subduct, the second crawling mechanisms defining a second subduct coaxial with the first subduct;
the coil heating mechanism is positioned between the first crawling mechanism and the second crawling mechanism, the coil heating mechanism is composed of a first arc-shaped portion and a second arc-shaped portion, the first arc-shaped portion and the second arc-shaped portion can move along the framework in the radial direction, and the sleeve is positioned between the first arc-shaped portion and the second arc-shaped portion.
2. The steel pipe quick installation device according to claim 1, wherein when the coil heating mechanism works, the sleeve forms clearance fit with the first sub-pipe and the second sub-pipe after being heated, and when the coil heating mechanism does not work, the sleeve forms interference fit with the first sub-pipe and the second sub-pipe after being cooled.
3. The steel duct quick installation apparatus of claim 1, wherein the first arc has a guide portion slidably installed in the frame.
4. The steel pipe quick installation apparatus according to claim 3, wherein the frame has a screw groove, a spring is disposed in the screw groove, a lower end of the spring is connected to the first arc portion, and an upper end thereof is connected to a screw.
5. The steel pipe quick installation apparatus according to claim 1, wherein the frame is composed of a first frame body and a second frame body, and both the first frame body and the second frame body are semicircular.
6. The steel pipe quick installation apparatus according to claim 1, wherein the frame is provided at both sides with arc-shaped guide surfaces which guide the first subduct and the second subduct into the frame.
7. The steel pipe quick installation apparatus of claim 1, wherein the first crawling mechanism comprises a cylinder, a driver, a telescopic assembly, a track assembly and two sets of connecting rods, one end of each connecting rod is hinged to the frame, the other end of each connecting rod is hinged to the track assembly, the cylinder is connected with the track assembly through the telescopic assembly, and the adjacent track assemblies move towards each other under the action of the cylinder.
8. A steel pipe rapid installation method based on coil heating is used for installing a first subduct and a second subduct at least partially in a sleeve and is characterized in that,
the sleeve is arranged in the coil heating mechanism, and the coil heating mechanism heats the sleeve to increase the inner diameter of the sleeve;
the first crawling mechanism moves along the outer side wall of the first sub-pipeline and pushes the first sub-pipeline into the sleeve, and the second crawling mechanism moves along the outer side wall of the second sub-pipeline and pushes the second sub-pipeline into the sleeve;
the first crawling mechanism and the second crawling mechanism which are coaxial ensure that the first sub-pipeline and the second sub-pipeline are coaxial;
the coil heating mechanism cools, the inner diameter of the sleeve is reduced, and the first sub-pipeline and the second sub-pipeline are fixed in the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011343203.2A CN112361095B (en) | 2020-11-25 | 2020-11-25 | Equipment and method for quickly installing pipeline based on coil heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011343203.2A CN112361095B (en) | 2020-11-25 | 2020-11-25 | Equipment and method for quickly installing pipeline based on coil heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112361095A true CN112361095A (en) | 2021-02-12 |
| CN112361095B CN112361095B (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011343203.2A Active CN112361095B (en) | 2020-11-25 | 2020-11-25 | Equipment and method for quickly installing pipeline based on coil heating |
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| Country | Link |
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| CN (1) | CN112361095B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2849057A1 (en) * | 1978-11-11 | 1980-05-14 | Karl Heinz Vahlbrauk | Connection between two pipe ends - has sleeve shrunk over abutted pipe ends with reduced dia end portions |
| JPS5862012A (en) * | 1981-10-09 | 1983-04-13 | Furukawa Electric Co Ltd:The | Apparatus for heating heat-shrinkable sleeve for covering pipe |
| CA2004221A1 (en) * | 1989-11-29 | 1991-05-29 | Alan Cameron Kirby | Apparatus for heating pipe |
| JP2005231200A (en) * | 2004-02-19 | 2005-09-02 | Sekisui Chem Co Ltd | Butt fusion bonding device |
| CN1676261A (en) * | 2004-03-31 | 2005-10-05 | 陈炯 | External counter incision heater |
| CN103202096A (en) * | 2010-11-09 | 2013-07-10 | 国际壳牌研究有限公司 | Induction heater system for electrically heated pipelines |
| US20160334045A1 (en) * | 2015-05-15 | 2016-11-17 | Petrosleeve Incorporated | External Pipe Reinforcement |
| CN207954690U (en) * | 2017-12-27 | 2018-10-12 | 泉州市汉威机械制造有限公司 | A kind of novel pvp pipes connecting tooling |
| CN109702402A (en) * | 2019-03-07 | 2019-05-03 | 江苏省特种设备安全监督检验研究院 | A kind of device and technique carrying out pipeline welding using intermediate casing |
-
2020
- 2020-11-25 CN CN202011343203.2A patent/CN112361095B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2849057A1 (en) * | 1978-11-11 | 1980-05-14 | Karl Heinz Vahlbrauk | Connection between two pipe ends - has sleeve shrunk over abutted pipe ends with reduced dia end portions |
| JPS5862012A (en) * | 1981-10-09 | 1983-04-13 | Furukawa Electric Co Ltd:The | Apparatus for heating heat-shrinkable sleeve for covering pipe |
| CA2004221A1 (en) * | 1989-11-29 | 1991-05-29 | Alan Cameron Kirby | Apparatus for heating pipe |
| JP2005231200A (en) * | 2004-02-19 | 2005-09-02 | Sekisui Chem Co Ltd | Butt fusion bonding device |
| CN1676261A (en) * | 2004-03-31 | 2005-10-05 | 陈炯 | External counter incision heater |
| CN103202096A (en) * | 2010-11-09 | 2013-07-10 | 国际壳牌研究有限公司 | Induction heater system for electrically heated pipelines |
| US20160334045A1 (en) * | 2015-05-15 | 2016-11-17 | Petrosleeve Incorporated | External Pipe Reinforcement |
| CN207954690U (en) * | 2017-12-27 | 2018-10-12 | 泉州市汉威机械制造有限公司 | A kind of novel pvp pipes connecting tooling |
| CN109702402A (en) * | 2019-03-07 | 2019-05-03 | 江苏省特种设备安全监督检验研究院 | A kind of device and technique carrying out pipeline welding using intermediate casing |
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| Publication number | Publication date |
|---|---|
| CN112361095B (en) | 2022-06-03 |
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