CN115194398A - Large-scale pipeline butt joint adjusting device and butt joint method - Google Patents
Large-scale pipeline butt joint adjusting device and butt joint method Download PDFInfo
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- CN115194398A CN115194398A CN202210861059.4A CN202210861059A CN115194398A CN 115194398 A CN115194398 A CN 115194398A CN 202210861059 A CN202210861059 A CN 202210861059A CN 115194398 A CN115194398 A CN 115194398A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 35
- 230000003014 reinforcing effect Effects 0.000 claims description 7
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- 239000003638 chemical reducing agent Substances 0.000 claims description 4
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- 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 for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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Abstract
The invention relates to a large-scale pipeline butt joint adjusting device and a butt joint method, wherein the device comprises a fixed support frame, an adjustable support frame and a butt joint fixing piece; the fixed support frame is used for supporting the pipeline A, the adjustable support frame is used for supporting the pipeline B, and after the butt joint adjustment of the pipeline A and the pipeline B is completed, the pipeline A and the pipeline B are temporarily fixed by the butt joint fixing piece; the adjustable support frame is provided with a height and angle adjusting device, an axial adjusting wheel belt and a circumferential rotating wheel belt, and the height and angle adjusting device consists of lifting devices arranged at two ends of the adjustable support frame; a plurality of axial rollers are arranged on the periphery of the axial adjusting wheel belt corresponding to the pipeline B, and one of the axial rollers is connected with an axial roller driving device; the periphery of the circumferential rotating wheel belt corresponding to the pipeline B is provided with a plurality of circumferential rollers, and one circumferential roller is connected with a circumferential roller driving device. The invention adopts a special device to realize the butt joint adjustment of the large-scale pipeline, is favorable for the later welding, greatly reduces the construction difficulty and improves the construction quality.
Description
Technical Field
The invention relates to the technical field of pipeline construction, in particular to a large pipeline butt joint adjusting device and a butt joint method.
Background
In metallurgy and industrial engineering, cylindrical steel products such as large pipelines or steel chimneys and the like are often required to be assembled and welded; the workpieces are large in size and heavy in weight, and the conventional assembly usually adopts crane cooperation operation, so that the crane is long in time, other constructions are influenced, and the positions of the workpieces are difficult to accurately adjust, so that the butt joint quality is influenced. In addition, in the welding operation process after the pipeline butt joint adjustment, the workpiece needs to rotate around the axis stably and repeatedly, and the operation is difficult to complete by adopting the existing construction equipment.
Disclosure of Invention
The invention provides a butt joint adjusting device and a butt joint method for large pipelines, which adopt a special device to realize butt joint adjustment of the large pipelines, are beneficial to later-stage welding, greatly reduce construction difficulty and improve construction quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
a large-scale pipeline butt joint adjusting device comprises a fixed support frame, an adjustable support frame and a butt joint fixing piece; the fixed support frame and the adjustable support frame are arranged side by side, the fixed support frame is used for supporting the pipeline A, the adjustable support frame is used for supporting the pipeline B, and after the butt joint adjustment of the pipeline A and the pipeline B is completed, the pipeline A and the pipeline B are temporarily fixed by a butt joint fixing piece; the adjustable support frame is provided with a height and angle adjusting device, an axial adjusting wheel belt and a circumferential rotating wheel belt, and the height and angle adjusting device consists of lifting devices arranged at two ends of the adjustable support frame and is used for adjusting the height and angle of the pipeline B; the axial adjusting wheel belt is provided with a plurality of axial rollers at the periphery corresponding to the pipeline B, wherein one axial roller is connected with the axial roller driving device and is used for adjusting the axial position of the pipeline B; the circumferential rotating wheel belt is provided with a plurality of circumferential rollers at the periphery corresponding to the pipeline B, wherein one circumferential roller is connected with a circumferential roller driving device and is used for adjusting the circumferential position of the pipeline B; the axial adjusting wheel belt and the circumferential rotating wheel belt are all arranged at a plurality of intervals along the longitudinal direction of the adjustable supporting frame.
The fixed support frame consists of a base, a V-shaped support and a reinforcing rib plate; the base is arranged along the longitudinal length of the fixed support frame, the V-shaped supports are arranged on the base, and a plurality of V-shaped supports are arranged at intervals along the longitudinal direction of the base; reinforcing rib plates are respectively arranged on two sides of the V-shaped bracket; the pipeline A is arranged on the V-shaped support, and the top surface of the V-shaped support is higher than the horizontal axis height of the pipeline A.
The adjustable support frame consists of a bottom plate, a middle connecting plate, a height and angle adjusting device, an axial adjusting belt and a circumferential rotating belt; the height and angle adjusting device consists of a first lifting device and a second lifting device, the first lifting device and the second lifting device are both arranged between the bottom plate and the middle connecting plate, the first lifting device is arranged at one end close to the fixed support frame, and the second lifting device is arranged at one end far away from the fixed support frame; the two sides of the bottom plate are respectively provided with a lower vertical plate, the two sides of the middle connecting plate are respectively provided with an upper vertical plate, and the upper vertical plate and the lower vertical plate on the corresponding sides are mutually attached and can slide up and down; the axial adjusting wheel belt and the circumferential rotating wheel belt are respectively arranged on the middle connecting plate.
The first lifting device and the second lifting device are electric actuators and comprise electric push rods or electric cylinders.
The axial adjusting wheel belt is composed of a first support, a first arc-shaped plate, an axial roller and an axial roller driving device; the first arc-shaped plate is arranged on the first support, a plurality of axial rollers are arranged on the first arc-shaped plate along the circumferential direction, one of the axial rollers is connected with the axial roller driving device, and the axial roller driving device is fixedly connected with the first support.
The circumferential rotating wheel belt consists of a second bracket, a second arc plate, a circumferential roller and a circumferential roller driving device; and the second arc plate is arranged on the second support, a plurality of circumferential rollers are arranged on the second arc plate along the circumferential direction, one of the circumferential rollers is connected with the circumferential roller driving device, and the circumferential roller driving device is fixedly connected with the second support.
The middle connecting plate is connected with the first support and the second support through bolts, and adjusting gaskets are arranged at the joints.
The axial roller driving device is an electric cylinder or an electric push rod, and the circumferential roller driving device is a stepping motor and a planetary reducer; synchronous operation is realized among the axial roller driving devices and among the circumferential roller driving devices through a control system respectively; the control system is additionally connected with the first lifting device and the second lifting device; the axial roller and the circumferential roller are hard rubber wheels, and anti-skid grooves parallel to the axis are arranged along the wheel circumference.
The butt-joint fixing piece is a bridge plate; the bridge-shaped plates are arranged at the butt joint seams along the circumferential direction, and the pipeline A and the pipeline B after the butt joint adjustment are fixed with the corresponding ends of the bridge-shaped plates respectively through spot welding.
A large pipeline butt joint method comprises the following steps:
1) Installing a fixed support frame, and enabling the centers of a plurality of V-shaped supports on the fixed support frame to be positioned on the same horizontal line, wherein the horizontal line is a reference horizontal line; the adjustable support frame is installed by taking the fixed support frame as a reference; when the adjustable support frame is installed, the bottom plate and the fixed support frame are placed side by side, the first lifting device, the second lifting device and the middle connecting plate are installed, and the level of the middle connecting plate is adjusted through the first lifting device and the second lifting device; then installing each axial adjusting wheel belt and each circumferential rotating wheel belt, and enabling the distribution centers of the same set of axial idler wheels on each axial adjusting wheel belt and the distribution centers of the same set of circumferential idler wheels on each circumferential rotating wheel belt to be located on a reference horizontal line through fine adjustment of bolts and adjusting gaskets;
2) When the pipeline A and the pipeline B are butted before welding, the pipeline A is horizontally arranged on a fixed support frame; then placing the pipeline B on the adjustable support frame, wherein the inner end of the pipeline B is close to the inner end of the pipeline A, and the distance between the inner end of the pipeline B and the inner end of the pipeline A is 5-10 mm;
3) Measuring the butt joint deviation of the pipeline A relative to the pipeline B, wherein the butt joint deviation comprises axial position deviation, height deviation and axis angle deviation, and adjusting the pipeline B according to the measurement result; the axial position deviation is adjusted through an axial adjusting wheel belt, and the axial roller driving device is started and controlled to synchronously run through a control system during adjustment so as to drive each axial roller to synchronously rotate, so that the pipeline B axially moves for a set distance relative to the pipeline A; the height deviation and the axis angle deviation are adjusted by a height and angle adjusting device, and the first lifting device and the second lifting device are controlled by a control system to respectively lift and lower set heights during adjustment;
4) Measuring the butt joint deviation of the pipeline A relative to the pipeline B again, adjusting again according to the step 3) if the butt joint requirement is not met, and temporarily fixing before welding if the butt joint requirement is met;
5) Temporarily welding a bridge-shaped plate at the interface of the pipeline B and the pipeline A; the bridge plates are welded in multiple groups, and each group comprises 4 bridge plates; the first group of 4 bridge plates are welded and fixed at an angle of 90 degrees in the circumferential direction, and the second group of 4 bridge plates are welded and fixed between the adjacent 2 welded bridge plates; by analogy, welding of all bridge plates is completed; in the process of welding the bridge-shaped plate, the control system starts and controls the circumferential roller driving devices to synchronously operate, so as to drive the circumferential rollers to synchronously rotate and enable the pipeline B to rotate around the axis; under the connection of the bridge-shaped plates and the manual assistance, the pipeline A and the pipeline B synchronously rotate;
6) After the temporary fixing of the pipeline A and the pipeline B is finished, welding is carried out on the butt joint part; in the welding process, the pipeline A and the pipeline B are driven to synchronously rotate through the circumferential roller.
Compared with the prior art, the invention has the beneficial effects that:
1) The assembly operation before welding can be conveniently finished through the adjustable support frame, and the assembly precision of the pipeline is improved;
2) The occupation of a field crane is reduced, and the utilization rate of equipment is improved;
3) In the welding process, the pipeline is driven to rotate by the circumferential roller, and the pipeline can rotate to any angle for welding, so that the reciprocating welding process of the pipeline is facilitated, and the welding stress concentration phenomenon is effectively reduced;
4) The device has high repeated utilization rate, convenient disassembly and transportation and wide application range.
Drawings
Fig. 1 is a front view of a large pipe butt joint adjusting device according to the present invention.
Fig. 2 isbase:Sub>A viewbase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is a view B-B in fig. 1.
Fig. 4 is a view C-C in fig. 1.
In the figure: 1. fixed support 11, base 12, V-shaped support 13, reinforcing rib plate 2, adjustable support 21, bottom plate 22, lifting device I23, lifting device II 24, intermediate connecting plate 25, adjusting gasket 26, bolt 3, axial adjusting belt 31, support I32, arc plate I33, axial roller 34, axial roller driving device 4, circumferential rotating belt 41, support II 42, arc plate II 43, circumferential roller 44, circumferential roller driving device 5, bridge plate 6, pipeline B7, pipeline A7
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1-4, the butt joint adjusting device for large pipes according to the present invention includes a fixed support frame 1, an adjustable support frame 2, and a butt joint fixing member; the fixed support frame 1 and the adjustable support frame 2 are arranged side by side, the fixed support frame 1 is used for supporting a pipeline A7, the adjustable support frame 2 is used for supporting a pipeline B6, and after butt joint adjustment of the pipeline A7 and the pipeline B6 is completed, the pipeline A7 and the pipeline B6 are temporarily fixed by a butt joint fixing piece; the adjustable support frame 2 is provided with a height and angle adjusting device, an axial adjusting wheel belt 3 and a circumferential rotating wheel belt 4, and the height and angle adjusting device consists of lifting devices arranged at two ends of the adjustable support frame 2 and is used for adjusting the height and angle of the pipeline 6; the axial adjusting wheel belt 3 is provided with a plurality of axial rollers 33 on the periphery corresponding to the pipeline B6, wherein one axial roller 33 is connected with an axial roller driving device 34 and is used for adjusting the axial position of the pipeline B6; the circumferential rotating wheel belt 4 is provided with a plurality of circumferential rollers 43 on the periphery of the corresponding pipeline B6, wherein one circumferential roller 43 is connected with a circumferential roller driving device 44 and is used for adjusting the circumferential position of the pipeline B6; the axial adjusting belt 3 and the circumferential rotating belt 4 are respectively provided with a plurality of belts at intervals along the longitudinal direction of the adjustable supporting frame 2.
The fixed support frame 1 consists of a base 11, a V-shaped support 12 and a reinforcing rib plate 13; the base 11 is arranged along the longitudinal length of the fixed support frame 1, the V-shaped supports 12 are arranged on the base 11, and a plurality of the V-shaped supports are arranged along the longitudinal direction of the base 11 at intervals; reinforcing rib plates 13 are respectively arranged on two sides of the V-shaped bracket 12; the pipe A7 is placed on the V-shaped bracket 12, and the top surface of the V-shaped bracket 12 is higher than the horizontal axis height of the pipe A7.
The adjustable support frame 2 consists of a bottom plate 21, a middle connecting plate 24, a height and angle adjusting device, an axial adjusting belt 3 and a circumferential rotating belt 4; the height and angle adjusting device consists of a first lifting device 22 and a second lifting device 23, the first lifting device 22 and the second lifting device 23 are both arranged between the bottom plate 21 and the middle connecting plate 24, the first lifting device 22 is arranged at one end close to the fixed support frame 1, and the second lifting device 23 is arranged at one end far away from the fixed support frame 1; the two sides of the bottom plate 21 are respectively provided with a lower vertical plate, the two sides of the middle connecting plate 24 are respectively provided with an upper vertical plate, and the upper vertical plate and the lower vertical plate on the corresponding sides are mutually attached and can slide up and down; the axial adjusting belt 3 and the circumferential rotating belt 4 are respectively arranged on the middle connecting plate 24.
The first lifting device 22 and the first lifting device 23 are electric actuators and comprise electric push rods or electric cylinders.
The axial adjusting wheel belt 3 consists of a first support 31, a first arc-shaped plate 32, an axial roller 33 and an axial roller driving device 34; the first arc-shaped plate 32 is arranged on the first support 31, a plurality of axial rollers 33 are arranged on the first arc-shaped plate 32 along the circumferential direction, one of the axial rollers 33 is connected with an axial roller driving device 34, and the axial roller driving device 34 is fixedly connected with the first support 31.
The circumferential rotating belt 4 consists of a second bracket 41, a second arc-shaped plate 42, a circumferential roller 43 and a circumferential roller driving device 44; the second arc-shaped plate 42 is arranged on the second support 41, a plurality of circumferential rollers 43 are arranged on the second arc-shaped plate 42 along the circumferential direction, one circumferential roller 43 is connected with a circumferential roller driving device 44, and the circumferential roller driving device 44 is fixedly connected with the second support 41.
The middle connecting plate 24 is connected with the first bracket 31 and the middle connecting plate 24 is connected with the second bracket 41 through bolts 26, and adjusting gaskets 25 are arranged at the connecting positions.
The axial roller driving device 34 is an electric cylinder or an electric push rod, and the circumferential roller driving device 44 is a stepping motor and a planetary reducer; synchronous operation is realized among the axial roller driving devices 34 and among the circumferential roller driving devices 44 through a control system respectively; the control system is additionally connected with a first lifting device 22 and a second lifting device 23; the axial roller 33 and the circumferential roller 43 are both hard rubber wheels, and are provided with anti-skid grooves parallel to the axis along the wheel circumference.
The butt-joint fixing piece is a bridge plate 5; the bridge plates 5 are arranged at the butt joint seams along the circumferential direction, and the pipeline A7 and the pipeline B6 after the butt joint adjustment are fixed with the corresponding ends of the bridge plates 5 in a spot welding mode respectively.
A large pipeline butt joint method comprises the following steps:
1) Installing and fixing the support frame 1, and enabling the centers of a plurality of V-shaped supports 12 on the support frame to be positioned on the same horizontal line, wherein the horizontal line is a reference horizontal line; the adjustable support frame 2 is installed by taking the fixed support frame 1 as a reference; when the adjustable support frame 2 is installed, the bottom plate 21 and the fixed support frame 1 are placed side by side, then the first lifting device 22, the second lifting device 23 and the middle connecting plate 24 are installed, and the middle connecting plate 24 is adjusted to be horizontal through the first lifting device 22 and the second lifting device 23; then, installing each axial adjusting wheel belt 3 and each circumferential rotating wheel belt 4, and finely adjusting through bolts 26 and adjusting gaskets 25 to enable the distribution centers of the same group of axial rollers 33 on each axial adjusting wheel belt 3 and the distribution centers of the same group of circumferential rollers 43 on each circumferential rotating wheel belt 4 to be on a reference horizontal line;
2) When the pipeline A7 and the pipeline B6 are butted before welding, the pipeline A7 is horizontally arranged on the fixed support frame 1; then the pipeline B6 is placed on the adjustable support frame 2, the inner end of the pipeline B6 is close to the inner end of the pipeline A7, and the distance between the two is 5-10 mm;
3) Measuring the butting deviation of the pipeline A7 relative to the pipeline B6, including axial position deviation, height deviation and axis angle deviation, and adjusting the pipeline B6 according to the measurement result; the axial position deviation is adjusted through the axial adjusting wheel belt 3, and the control system is used for starting and controlling the axial roller driving device 34 to synchronously run during adjustment so as to drive each axial roller 33 to synchronously rotate, so that the pipeline B6 axially moves for a set distance relative to the pipeline A7; the height deviation and the axis angle deviation are adjusted through a height and angle adjusting device, and the lifting device I22 and the lifting device II 23 are controlled to respectively lift and lower set heights through a control system during adjustment;
4) Measuring the butting deviation of the pipeline B6 relative to the pipeline A7 again, adjusting again according to the step 3) if the butting deviation does not meet the butting requirement, and temporarily fixing before welding if the butting deviation meets the butting requirement;
5) Temporarily welding the bridge-shaped plate 5 at the interface of the pipeline A7 and the pipeline B6; the bridge plates 5 are welded in a plurality of groups, and each group comprises 4 bridge plates; the first group of 4 bridge plates are welded and fixed at an angle of 90 degrees in the circumferential direction, and the second group of 4 bridge plates are welded and fixed between the adjacent 2 welded bridge plates; by analogy, welding of all the bridge plates 5 is completed; in the welding process of the bridge-shaped plate 5, the control system starts and controls the circumferential roller driving device 44 to synchronously run, so as to drive each circumferential roller 43 to synchronously rotate and enable the pipeline B6 to rotate around the axis; under the connection of the bridge plate 5 and the manual assistance, the pipeline A7 and the pipeline B6 synchronously rotate;
6) After the pipeline A7 and the pipeline B6 are temporarily fixed, welding is carried out on the butt joint part; in the welding process, the pipeline A7 and the pipeline B6 are driven to synchronously rotate by the circumferential roller 43.
In the large-scale pipeline butt joint adjusting device, the fixed support frame 1 is used for placing the pipeline A7, the pipeline B6 in butt joint with the pipeline A7 is placed on the adjustable support frame 2, and when the pipeline A7 is assembled, the position of the pipeline B6 relative to the pipeline A7 is adjusted through the adjustable support frame 2. The axis of the pipeline B6 needs to be adjusted to be in a position coaxial with the axis of the pipeline A7, before adjustment, a height difference and an angle difference (one end is higher and the other end is lower) may exist between the axis of the pipeline B6 and a reference horizontal line, and the distance between the axis of the pipeline B6 and the reference horizontal line may not meet the requirements of butt welding, and the height difference and the angle difference can be adjusted through the adjustable supporting frame 2.
In the axial adjusting belt 3 and the circumferential rotating belt 4, the arc angles of the first arc-shaped plate 32 and the second arc-shaped plate 42 are close to 180 degrees, the pipeline B6 is arranged in the arc angles, and the top surfaces of the first arc-shaped plate 32 and the second arc-shaped plate 42 are slightly higher than the axial height of the pipeline B6. Preferably, 4 sets of axial rollers 33 are provided on the same axial adjustment belt 3, and 4 sets of circumferential rollers 43 are provided on the same circumferential rotation belt 4. The axial adjustment belt 3 and the circumferential rotation belt 4 are preferably alternately spaced.
In each axial adjusting belt 3, only one axial roller 33 is a driving wheel, and the rest are driven wheels. Similarly, in each circumferential rotating belt 4, only one circumferential roller 43 is a driving wheel, and the rest are driven wheels. The driving wheel in each axial adjusting belt 3 and the driving wheel in each circumferential rotating belt 4 are respectively connected with corresponding driving devices, namely, the driving devices are driven independently. But each driving device is respectively connected with the control system and realizes synchronous operation through the control system.
The first lifting device 22, the second lifting device 23 and the axial roller driving device 34 are all used for accurately adjusting the position of the pipeline B6, the requirement on control precision is high, an electric push rod or an electric cylinder can be selected as required, the control precision of a common alternating current electric push rod is 0.2mm, the control precision of a DC electric push rod is 1-2 mm, and the control precision of the electric cylinder is 0.01-0.02 mm. The circumferential roller driving device 44 is used for rotation of the pipeline B6 or synchronous rotation of the pipeline B6 and the pipeline A7, the requirement on the control precision is not too high, and a stepping motor can be selected and matched with a planetary reducer.
The large-scale pipeline butt joint adjusting device is suitable for butt joint of pipelines with the diameter range of 1-4 meters, the arrangement distance between the axial adjusting belt 3 and the circumferential rotating belt 4 is about 1.5 meters, the specific number can be set according to requirements, and the installation and the disassembly are very convenient. The V-shaped bracket 12 on the fixed support frame 1 can also be designed into a detachable structure. The length range of the pipeline suitable for the large-scale pipeline butt joint adjusting device is 6-10 meters, and the axial adjusting wheel belt 3 and the adjusting gasket 25 arranged between the circumferential rotating wheel belt 4 and the middle connecting plate 24 are used for integral leveling.
The minimum adjusting range of the first lifting device 22 and the second lifting device 23 is +/-100 mm, and the minimum adjusting ranges are used for adjusting the height and the aligning angle of the pipeline during aligning; the lower vertical plate and the upper vertical plate are respectively arranged on the bottom plate 21 and the middle connecting plate 24, and the stability of the upper structure of the adjustable support frame 2 can be ensured through the matching of the upper vertical plate and the lower vertical plate, and the upper structure can only lift along the vertical direction when lifting.
The butt joint fixing device is used for temporarily fixing the butt joint of the pipelines before welding after the butt joint adjustment is finished, can adopt the bridge plate to temporarily weld and fix, and also can adopt a plurality of electromagnets to temporarily position.
The butt joint adjusting device for the large pipeline is placed on a high platform and can also be used for butt welding of the large pipeline and a large elbow.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A large-scale pipeline butt joint adjusting device is characterized by comprising a fixed support frame, an adjustable support frame and a butt joint fixing piece; the fixed support frame and the adjustable support frame are arranged side by side, the fixed support frame is used for supporting the pipeline A, the adjustable support frame is used for supporting the pipeline B, and the pipeline A and the pipeline B are temporarily fixed by a butt fixing piece after butt adjustment is completed; the adjustable support frame is provided with a height and angle adjusting device, an axial adjusting wheel belt and a circumferential rotating wheel belt, and the height and angle adjusting device consists of lifting devices arranged at two ends of the adjustable support frame and is used for adjusting the height and angle of the pipeline B; the axial adjusting wheel belt is provided with a plurality of axial rollers at the periphery corresponding to the pipeline B, wherein one axial roller is connected with the axial roller driving device and is used for adjusting the axial position of the pipeline B; the circumferential rotating wheel belt is provided with a plurality of circumferential rollers at the periphery corresponding to the pipeline B, wherein one circumferential roller is connected with a circumferential roller driving device and is used for adjusting the circumferential position of the pipeline B; the axial adjusting wheel belt and the circumferential rotating wheel belt are all arranged at a plurality of intervals along the longitudinal direction of the adjustable supporting frame.
2. The large pipeline butt joint adjusting device according to claim 1, wherein the fixed support frame is composed of a base, a V-shaped support and reinforcing rib plates; the base is arranged along the longitudinal length of the fixed support frame, the V-shaped supports are arranged on the base, and a plurality of V-shaped supports are arranged at intervals along the longitudinal direction of the base; reinforcing rib plates are respectively arranged on two sides of the V-shaped bracket; the pipeline A is arranged on the V-shaped support, and the top surface of the V-shaped support is higher than the horizontal axis of the pipeline A.
3. The butt joint adjusting device for the large-scale pipelines according to claim 1, wherein the adjustable supporting frame is composed of a bottom plate, a middle connecting plate, a height and angle adjusting device, an axial adjusting belt and a circumferential rotating belt; the height and angle adjusting device consists of a first lifting device and a second lifting device, the first lifting device and the second lifting device are both arranged between the bottom plate and the middle connecting plate, the first lifting device is arranged at one end close to the fixed support frame, and the second lifting device is arranged at one end far away from the fixed support frame; the two sides of the bottom plate are respectively provided with a lower vertical plate, the two sides of the middle connecting plate are respectively provided with an upper vertical plate, and the upper vertical plate and the lower vertical plate on the corresponding sides are mutually attached and can slide up and down; the axial adjusting wheel belt and the circumferential rotating wheel belt are respectively arranged on the middle connecting plate.
4. The large pipeline butt joint adjusting device according to claim 3, wherein the first lifting device and the lifting device are electric actuators comprising electric push rods or electric cylinders.
5. The butt joint adjusting device for the large pipeline according to claim 1, wherein the axial adjusting wheel belt is composed of a first bracket, a first arc-shaped plate, an axial roller and an axial roller driving device; the first arc-shaped plate is arranged on the first support, a plurality of axial rollers are circumferentially arranged on the first arc-shaped plate, one of the axial rollers is connected with the axial roller driving device, and the axial roller driving device is fixedly connected with the first support.
6. The butt joint adjusting device for the large pipeline according to claim 1, wherein the circumferential rotating belt is composed of a second bracket, a second arc-shaped plate, a circumferential roller and a circumferential roller driving device; and the second arc plate is arranged on the second support, a plurality of circumferential rollers are arranged on the second arc plate along the circumferential direction, one of the circumferential rollers is connected with the circumferential roller driving device, and the circumferential roller driving device is fixedly connected with the second support.
7. A large pipeline butt joint adjusting device according to claim 3, wherein the intermediate connecting plate is connected with the first support frame and the intermediate connecting plate is connected with the second support frame through bolts, and adjusting gaskets are arranged at the joints.
8. The large pipeline butting and adjusting device according to claim 1, wherein the axial roller driving device is an electric cylinder or an electric push rod, and the circumferential roller driving device is a stepping motor and a planetary reducer; synchronous operation is realized among the axial roller driving devices and among the circumferential roller driving devices through a control system respectively; the control system is additionally connected with the first lifting device and the second lifting device; the axial roller and the circumferential roller are hard rubber wheels, and anti-skid grooves parallel to the axis are arranged along the wheel circumference.
9. A large pipe butt joint adjusting device according to claim 1, wherein the butt joint fixing member is a bridge plate; the bridge-shaped plates are arranged at the butt joint seams along the circumferential direction, and the pipeline A and the pipeline B after the butt joint adjustment are fixed with the corresponding ends of the bridge-shaped plates respectively through spot welding.
10. A large pipeline butt joint method based on the device of any one of claims 1 to 9, characterized by comprising the following steps:
1) Installing a fixed support frame, and enabling the centers of a plurality of V-shaped supports on the fixed support frame to be positioned on the same horizontal line, wherein the horizontal line is a reference horizontal line; the adjustable support frame is installed by taking the fixed support frame as a reference; when the adjustable support frame is installed, the bottom plate and the fixed support frame are placed side by side, the first lifting device, the second lifting device and the middle connecting plate are installed, and the level of the middle connecting plate is adjusted through the first lifting device and the second lifting device; then installing each axial adjusting wheel belt and each circumferential rotating wheel belt, and enabling the distribution centers of the same set of axial idler wheels on each axial adjusting wheel belt and the distribution centers of the same set of circumferential idler wheels on each circumferential rotating wheel belt to be located on a reference horizontal line through fine adjustment of bolts and adjusting gaskets;
2) When the pipeline A and the pipeline B are butted before welding, the pipeline A is horizontally arranged on a fixed support frame; then placing the pipeline B on the adjustable support frame, wherein the inner end of the pipeline B is close to the inner end of the pipeline A, and the distance between the inner end of the pipeline B and the inner end of the pipeline A is 5-10 mm;
3) Measuring the butt joint deviation of the pipeline A relative to the pipeline B, wherein the butt joint deviation comprises axial position deviation, height deviation and axis angle deviation, and adjusting the pipeline B according to the measurement result; the axial position deviation is adjusted through an axial adjusting wheel belt, and the axial roller driving device is started and controlled to synchronously run through a control system during adjustment so as to drive each axial roller to synchronously rotate, so that the pipeline B axially moves for a set distance relative to the pipeline A; the height deviation and the axis angle deviation are adjusted by a height and angle adjusting device, and the first lifting device and the second lifting device are controlled by a control system to respectively lift and lower set heights during adjustment;
4) Measuring the butt joint deviation of the pipeline A relative to the pipeline B again, adjusting again according to the step 3) if the butt joint requirement is not met, and temporarily fixing before welding if the butt joint requirement is met;
5) Temporarily welding a bridge-shaped plate at the interface of the pipeline B and the pipeline A; the bridge plates are welded in multiple groups, and each group comprises 4 bridge plates; the first group of 4 bridge plates are welded and fixed at an angle of 90 degrees in the circumferential direction, and the second group of 4 bridge plates are welded and fixed between the adjacent 2 welded bridge plates; by analogy, welding of all bridge plates is completed; in the process of welding the bridge-shaped plate, the control system starts and controls the circumferential roller driving devices to synchronously operate, so as to drive the circumferential rollers to synchronously rotate and enable the pipeline B to rotate around the axis; under the connection of the bridge-shaped plates and the manual assistance, the pipeline A and the pipeline B synchronously rotate;
6) After the temporary fixing of the pipeline A and the pipeline B is finished, welding is carried out on the butt joint part; in the welding process, the pipeline A and the pipeline B are driven to synchronously rotate through the circumferential roller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210861059.4A CN115194398A (en) | 2022-07-22 | 2022-07-22 | Large-scale pipeline butt joint adjusting device and butt joint method |
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| CN202210861059.4A CN115194398A (en) | 2022-07-22 | 2022-07-22 | Large-scale pipeline butt joint adjusting device and butt joint method |
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| CN115194398A true CN115194398A (en) | 2022-10-18 |
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| CN202210861059.4A Pending CN115194398A (en) | 2022-07-22 | 2022-07-22 | Large-scale pipeline butt joint adjusting device and butt joint method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119123189A (en) * | 2024-09-10 | 2024-12-13 | 中国一冶集团有限公司 | Pipeline docking auxiliary device and pipeline docking method |
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