CN108311850B - Pipeline butt welding positioning device, positioning system and construction method thereof - Google Patents
Pipeline butt welding positioning device, positioning system and construction method thereof Download PDFInfo
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- CN108311850B CN108311850B CN201810349414.3A CN201810349414A CN108311850B CN 108311850 B CN108311850 B CN 108311850B CN 201810349414 A CN201810349414 A CN 201810349414A CN 108311850 B CN108311850 B CN 108311850B
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- original pipeline
- pipe
- butt joint
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- 238000003466 welding Methods 0.000 title claims abstract description 60
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims abstract description 41
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A pipeline butt welding positioning device, a positioning system and a construction method thereof, comprises a support pipe rack, a travelling mechanism, a six-way hydraulic device and a positioner. Socket connectors of the travelling mechanism are correspondingly inserted in the support four outer ports of the main pipe frame of the pipe frame; the connecting insertion pipe of the six-way hydraulic device is correspondingly inserted into one port of the spigot and socket pipe of the supporting pipe rack; the connecting pipe head of the locator is correspondingly inserted into the outer end head of the hydraulic unit of the six-way hydraulic device. The positioning system using the pipeline butt welding positioning device comprises an original pipeline, a pipeline butt welding positioning device arranged in the original pipeline and a butt joint pipeline in butt joint with the original pipeline. One side of the centering plate of the pipeline butt welding positioning device is abutted against the inner wall of the original pipeline the other side is clamped in the butt joint pipeline, the spacing plate is positioned outside the port of the original pipeline and clamped at the butt joint seam between the original pipeline and the butt joint pipeline, and the travelling wheel is propped against the inner wall of the original pipeline. The invention solves the problems that the pipeline is not easy to center and the axis deviation of the centered pipeline is large.
Description
Technical Field
The invention relates to the field of pipeline butt welding, in particular to a pipeline butt welding positioning device, a positioning system and a construction method thereof.
Background
The length of the common pipeline is 3-9m, the seamless steel pipe can reach 12m, when the pipeline is needed to be butt welded, the pipeline is not easy to be centered during butt welding due to the small wall thickness of DN400-DN1000 pipeline walls, and the axis of the pipeline is deviated after the pipeline is welded. At present, a device for butt welding a pipeline is a fixed device which generally adopts a self-customized bracket and is assisted by workers for welding, under the condition, for welding a large pipeline, the time and the labor are wasted, and the axle center deviation of the welded pipeline is larger.
Disclosure of Invention
The invention aims to provide a pipeline butt welding positioning device, a positioning system and a construction method thereof, which aim to solve the problems that a pipeline is difficult to center and the axis deviation of the centered pipeline is large.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a pipeline butt welding positioning device comprises a supporting pipe frame, a traveling mechanism, a six-way hydraulic device and a positioner.
The support pipe support comprises a main pipe support which is in a cross shape and is vertically and penetratingly connected with a spigot and socket pipe in the center of the main pipe support.
The travelling mechanism comprises a tubular socket joint and travelling wheels connected to the outer ports of the socket joint.
The six-way hydraulic device comprises a connecting cannula and hydraulic device units vertically connected to the outer port of the connecting cannula, wherein the hydraulic device units are arranged at six and even intervals.
The locator comprises a connecting pipe head, a circular arc-shaped centering plate connected to the outer port of the connecting pipe head and a spacing plate vertically connected to the middle of the outer surface of the centering plate.
The socket connectors of the travelling mechanism are correspondingly inserted into four outer ports of the main pipe frame of the support pipe frame; the connecting insertion pipe of the six-way hydraulic device is correspondingly inserted into one port of the spigot-and-socket pipe of the supporting pipe rack; the connecting pipe head of the positioner is correspondingly inserted into the outer end head of the hydraulic unit of the six-way hydraulic device.
The main pipe frames of the support pipe frames are identical in length along the four directions.
The centering plate is strip-shaped and is bent towards one side of the connecting pipe head;
the whole rectangular plate body that is of division board, its both sides limit and topside are the straight flange, the base is the arc limit of inwards bending, and the radian of arc limit is unanimous with the crooked radian of centering board to set up along the major axis of centering board.
The arc length and the width of the centering plate are equal.
The thickness of the partition plate is 2mm.
The positioning system applying the pipeline butt welding positioning device comprises an original pipeline, a pipeline butt welding positioning device arranged in the original pipeline and a butt joint pipeline in butt joint with the original pipeline.
One side of a centering plate of the pipeline butt welding positioning device is abutted against the inner wall of the original pipeline, the other side of the centering plate is clamped in the butt welding pipeline, the spacing plate is positioned outside the port of the original pipeline and clamped at the butt joint seam between the original pipeline and the butt welding pipeline, and the travelling wheel is abutted against the inner wall of the original pipeline.
The central axis of the pipeline butt welding positioning device coincides with the central axis of the original pipeline.
The bending radian of the centering plate is consistent with the radian of the inner wall of the original pipeline.
The distance between the two walking wheels which are symmetrically arranged is adapted to the inner diameter of the original pipeline.
The construction method of the positioning system of the pipeline butt welding positioning device comprises the following steps:
step one, fixing an original pipeline.
And secondly, when the six-way hydraulic device is in a pressure relief state, the pipeline butt welding positioning device stretches into the original pipeline.
And thirdly, adjusting the pipeline butt welding positioning device so that the partition plate is positioned outside the pipe orifice of the original pipeline, and one side of the centering plate is positioned in the pipe orifice of the original pipeline.
And step four, increasing the oil pressure of the six-way hydraulic device, so that the six-way hydraulic device slowly extends to be slightly smaller than the inner diameter of the original pipeline.
And fifthly, preliminarily butting the butting pipeline with the original pipeline.
And step six, adjusting the butt joint pipeline to enable the butt joint pipeline to be clamped at the other side of the centering plate, and enabling the spacing plate to be clamped between the butt joint pipelines of the original pipeline to realize the basic centering of the butt joint pipeline and the original pipeline.
And seventhly, continuously increasing and adjusting the oil pressure of the six-way hydraulic device until the centering plate is clung to the inner walls of the original pipeline and the butt joint pipeline, so as to realize the complete centering of the butt joint pipeline and the original pipeline.
And step eight, preliminarily connecting the original pipeline and the butt joint pipeline by adopting a six-point spot welding mode.
And step nine, discharging the oil pressure of the six-way hydraulic device.
And step ten, the pipeline butt welding positioning device is moved out of the original pipeline.
And step eleven, full-welding the joint of the original pipeline and the butt joint pipeline to finish the butt joint construction.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the invention realizes accurate centering and accurate butt welding connection between the original pipeline and the butt-jointed pipeline through the pipeline butt welding positioning device consisting of the support pipe rack, the travelling mechanism, the six-way hydraulic device and the positioner; through the spacing action of the spacing plates of the positioners, a spacing gap is formed between the original pipeline and the butt welding pipeline, the welding connection construction between the pipelines is facilitated, and the welding effect between the pipelines is enhanced; the accurate centering of the original pipeline and the butt welding pipeline is realized through the matching of the centering plate of the positioner and the six-way hydraulic device, the operation is simple, the judgment is convenient, namely, when the centering plate is tightly attached to the inner wall of the pipeline, the centering of the pipeline is confirmed; the positioner is spliced on the six-way hydraulic device, so that the replacement is convenient; the travelling wheel arranged on the pipeline butt welding positioning device is convenient for the movement of the device in the original pipeline.
The invention has simple structure, convenient manufacture and simple and quick operation, replaces the traditional bracket to be assisted by manual fixation, accelerates the connection speed of the pipeline and improves the construction efficiency.
The invention can be widely applied to pipeline connecting systems.
Drawings
Pipeline butt welding positioning device, positioning system and construction method thereof
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic plan view of a positioning system.
FIG. 2 is a schematic view of the structure of section 1-1 in FIG. 1.
FIG. 3 is a schematic view of the cross-section 2-2 of FIG. 1.
Fig. 4 is a schematic perspective view of a positioning system.
Fig. 5 is a schematic view of the structure of the positioner.
FIG. 6 is a section 3-3 of FIG. 5.
Reference numerals: 1-supporting pipe rack, 2-six-way hydraulic device, 3-positioner, 4-socket joint, 5-travelling wheel, 6-former pipeline and 7-butt joint pipeline.
Detailed Description
1-4, a pipeline butt welding positioning device is applicable to a pipeline with DN400-DN1000, and can also be used for a pipe gallery, and comprises a support pipe rack 1, a travelling mechanism, a six-way hydraulic device 2 and a positioner 3; the support pipe rack 1 is a steel pipe rack and comprises a main pipe rack arranged in a cross shape and a socket pipe vertically and penetratingly connected to the center of the main pipe rack; the travelling mechanism comprises a tubular socket joint 4 and travelling wheels 5 connected to the outer ports of the socket joint 4, and the travelling wheels 5 are universal wheels; the six-way hydraulic device 2 comprises a connecting cannula and hydraulic device units vertically connected to the outer port of the connecting cannula, wherein the hydraulic device units are arranged at six and even intervals; in order to ensure the centering accuracy of the pipeline, the requirement on the dimensional accuracy is high when the six-way hydraulic device is customized, and the positioner is matched with the pipeline for production at a pipeline manufacturer; referring to fig. 5 and 6, the positioner 3 comprises a connecting pipe head, a circular arc-shaped centering plate connected to an outer port of the connecting pipe head, and a spacing plate vertically connected to the middle of the outer surface of the centering plate; the socket connectors 4 of the travelling mechanism are correspondingly inserted into four outer ports of the main pipe frame of the support pipe frame 1, and the length of the socket connectors 4 inserted into the support pipe frame 1 can be properly adjusted according to the inner diameter of the pipeline; the connecting insertion pipe of the six-way hydraulic device 2 is correspondingly inserted into one port of the spigot-and-socket pipe of the support pipe rack 1; the connecting pipe head of the positioner 3 is correspondingly inserted into the outer end head of the hydraulic unit of the six-way hydraulic device 2; the main pipe frames of the support pipe frames 1 are identical in arrangement length along four directions; the centering plate is strip-shaped and is bent towards one side of the connecting pipe head; the whole space board is a rectangular board body, the two side edges and the top edge of the space board are straight edges, the bottom edge of the space board is an inward curved arc edge, the radian of the arc edge is consistent with the bending radian of the centering board, and the space board is arranged along the long axis of the centering board; the centering plate is an iron plate, and the arc length is equal to the width and is 15cm; the spacing plate is an iron plate, and has a thickness of 2mm and a width of 15cm.
The positioning system using the pipeline butt welding positioning device comprises an original pipeline 6, a pipeline butt welding positioning device arranged in the original pipeline 6 and a butt joint pipeline 7 in butt joint with the original pipeline 6; one side of a centering plate of the pipeline butt welding positioning device is abutted against the inner wall of the original pipeline 6, the other side of the centering plate is clamped in the butt welding pipeline 7, the spacing plate is positioned outside the port of the original pipeline 6 and clamped at the butt joint seam between the original pipeline 6 and the butt welding pipeline 7, and the travelling wheel 5 is abutted against the inner wall of the original pipeline 6; the central axis of the pipeline butt welding positioning device is coincident with the central axis of the original pipeline 6; the bending radian of the centering plate is consistent with the radian of the inner wall of the original pipeline 6; the distance between the two symmetrically arranged travelling wheels 5 is adapted to the inner diameter of the original pipeline 6.
The construction method of the positioning system of the pipeline butt welding positioning device comprises the following steps:
step one, the original pipe 6 is fixed.
And secondly, when the six-way hydraulic device 2 is in a pressure relief state, the pipeline butt welding positioning device stretches into the original pipeline 6.
And thirdly, adjusting the pipeline butt welding positioning device so that the partition plate is positioned outside the pipe orifice of the original pipeline 6, and one side of the centering plate is positioned in the pipe orifice of the original pipeline 6.
And step four, increasing the oil pressure of the six-way hydraulic machine 2, so that the six-way hydraulic machine 2 slowly stretches to be slightly smaller than the inner diameter of the original pipeline 6.
And fifthly, preliminarily butting the butting pipeline 7 with the original pipeline 6.
Step six, adjusting the butt joint pipeline 7 so as to be clamped on the other side of the centering plate, and clamping the spacing plate between the butt joint pipelines 7 of the original pipeline 6 to realize the basic centering of the butt joint pipeline 7 and the original pipeline 6.
And seventhly, continuously increasing and adjusting the oil pressure of the six-way hydraulic device 2 until the centering plate is clung to the inner walls of the original pipeline 6 and the butt joint pipeline 7, so as to realize the complete centering of the butt joint pipeline 7 and the original pipeline 6.
And step eight, preliminarily connecting the original pipeline 6 and the butt joint pipeline 7 by adopting a six-point spot welding mode.
And step nine, discharging the oil pressure of the six-way hydraulic machine 2.
And step ten, the pipeline butt welding positioning device is moved out of the original pipeline 6.
And step eleven, full-welding the joint of the original pipeline 6 and the butt joint pipeline 7 to finish the butt joint construction.
Claims (1)
1. A method of constructing a positioning system comprising a pipe butt welding positioning device, characterized by: the butt welding device comprises a positioning system, wherein the positioning system comprises an original pipeline (6), a pipeline butt welding positioning device arranged in the original pipeline (6) and a butt joint pipeline (7) which is in butt joint with the original pipeline (6);
one side of a centering plate of the pipeline butt welding positioning device is abutted against the inner wall of the original pipeline (6), the other side of the centering plate is clamped in the butt welding pipeline (7), the spacing plate is positioned outside a port of the original pipeline (6) and clamped at a butt joint between the original pipeline (6) and the butt welding pipeline (7), and the travelling wheel (5) is abutted against the inner wall of the original pipeline (6);
the pipeline butt welding positioning device comprises a supporting pipe frame (1), a travelling mechanism, a six-way hydraulic device (2) and a positioner (3);
the support pipe rack (1) comprises a main pipe rack which is arranged in a cross shape and a spigot and socket pipe which is vertically and penetratingly connected to the center of the main pipe rack;
the travelling mechanism comprises a tubular socket joint (4) and a travelling wheel (5) connected to the outer port of the socket joint (4), and the travelling wheel (5) is a universal wheel;
the six-way hydraulic device (2) comprises a connecting cannula and hydraulic device units vertically connected to the outer port of the connecting cannula, wherein the six hydraulic device units are uniformly arranged at intervals;
the positioner (3) comprises a connecting pipe head, a circular arc-shaped centering plate connected to the outer port of the connecting pipe head and a spacing plate vertically connected to the middle of the outer surface of the centering plate; the centering plate is an iron plate, and the arc length is equal to the width and is 15cm;
the socket connectors (4) of the travelling mechanism are correspondingly inserted into four outer ports of the main pipe frame of the support pipe frame (1); the connecting insertion pipe of the six-way hydraulic device (2) is correspondingly inserted into one port of the spigot-and-socket pipe of the supporting pipe rack (1); the connecting pipe head of the locator (3) is correspondingly inserted into the outer end head of the hydraulic unit of the six-way hydraulic device (2);
the main pipe frames of the support pipe frames (1) are identical in arrangement length along four directions;
the centering plate is strip-shaped and is bent towards one side of the connecting pipe head;
the whole space board is a rectangular board body, the two side edges and the top edge of the space board are straight edges, the bottom edge of the space board is an inward curved arc edge, the radian of the arc edge is consistent with the bending radian of the centering board, and the space board is arranged along the long axis of the centering board;
the central axis of the pipeline butt welding positioning device is coincident with the central axis of the original pipeline (6);
the bending radian of the middle plate is consistent with the radian of the inner wall of the original pipeline (6);
the distance between the two symmetrically arranged travelling wheels (5) is matched with the inner diameter of the original pipeline (6);
the spacing plate is an iron plate, and the thickness is 2mm and the width is 15cm;
the specific construction method comprises the following steps:
step one, fixing an original pipeline (6);
step two, when the six-way hydraulic device (2) is in a pressure relief state, the pipeline butt welding positioning device stretches into the original pipeline (6);
step three, adjusting the pipeline butt welding positioning device to enable the partition plate to be positioned outside the pipe orifice of the original pipeline (6) and enable one side of the centering plate to be positioned in the pipe orifice of the original pipeline (6);
step four, increasing the oil pressure of the six-way hydraulic device (2) so that the six-way hydraulic device (2) slowly stretches to be slightly smaller than the inner diameter of the original pipeline (6);
step five, initially butting the butting pipeline (7) with the original pipeline (6);
step six, adjusting the butt joint pipeline (7) to enable the butt joint pipeline (7) to be clamped on the other side of the centering plate, and enabling the spacing plate to be clamped between the original pipeline (6) and the butt joint pipeline (7) to realize basic centering of the butt joint pipeline (7) and the original pipeline (6);
step seven, continuously increasing and adjusting the oil pressure of the six-way hydraulic device (2) until the centering plate is tightly attached to the inner walls of the original pipeline (6) and the butt joint pipeline (7), so as to realize the complete centering of the butt joint pipeline (7) and the original pipeline (6);
step eight, preliminarily connecting the original pipeline (6) and the butt joint pipeline (7) together by adopting a six-point spot welding mode;
step nine, unloading the oil pressure of the six-way hydraulic device (2);
step ten, the pipeline butt welding positioning device is moved out of the original pipeline (6);
and step eleven, full-welding connection is carried out on the joint of the original pipeline (6) and the butt joint pipeline (7), and the butt joint construction is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349414.3A CN108311850B (en) | 2018-04-18 | 2018-04-18 | Pipeline butt welding positioning device, positioning system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349414.3A CN108311850B (en) | 2018-04-18 | 2018-04-18 | Pipeline butt welding positioning device, positioning system and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN108311850A CN108311850A (en) | 2018-07-24 |
| CN108311850B true CN108311850B (en) | 2024-04-16 |
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| CN201810349414.3A Active CN108311850B (en) | 2018-04-18 | 2018-04-18 | Pipeline butt welding positioning device, positioning system and construction method thereof |
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| CN110497125A (en) * | 2019-07-09 | 2019-11-26 | 四川艾普耐斯油气工程服务有限公司 | A kind of dovetail section formula flange abutting joint device |
| CN110961856A (en) * | 2019-12-13 | 2020-04-07 | 西安飞机工业（集团）有限责任公司 | Catheter inner diameter self-adaptive petal type expansion and contraction device and using method |
| CN112643179B (en) * | 2020-12-08 | 2022-09-30 | 凯络文换热器（中国）有限公司 | Heat exchange tube welding position device |
| CN114001677B (en) * | 2021-11-05 | 2024-05-10 | 中建八局新型建造工程有限公司 | Central shaft deviation measuring device and measuring method for butt-joint pipelines with different diameters |
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| CN108311850A (en) | 2018-07-24 |
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