CN113084443A - Height-adjustable pipe section auxiliary welding system and welding method - Google Patents
Height-adjustable pipe section auxiliary welding system and welding method Download PDFInfo
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- CN113084443A CN113084443A CN202110504060.7A CN202110504060A CN113084443A CN 113084443 A CN113084443 A CN 113084443A CN 202110504060 A CN202110504060 A CN 202110504060A CN 113084443 A CN113084443 A CN 113084443A
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- 238000003466 welding Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 119
- 239000010959 steel Substances 0.000 claims description 119
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 15
- 230000006378 damage Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 7
- 230000004075 alteration Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012847 fine chemical Substances 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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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 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
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
Abstract
The invention discloses a height-adjustable pipe section auxiliary welding system and a welding method, wherein the height-adjustable pipe section auxiliary welding system comprises the following steps: ring flange lift adjusting device and pipeline section lift adjusting device, ring flange lift adjusting device includes first ring flange lifting support, guide rail and second ring flange lifting support, be provided with first ring flange fixing device and first ring flange hoisting device on the first ring flange lifting support, be provided with second ring flange fixing device and second ring flange hoisting device on the second ring flange lifting support, pipeline section lift adjusting device includes pipeline section fixed knot structure, pipeline section elevation structure and removal base, pipeline section fixed knot constructs the upper portion that sets up at pipeline section elevation structure, and pipeline section fixed knot constructs and rotates with pipeline section elevation structure to be connected. The invention can ensure the accuracy of the welding height of the pipe section, improve the construction efficiency, save labor force, ensure the construction safety and avoid the damage to equipment and pipelines caused by the stress influence on the equipment and the pipelines caused by the deviation of manual butt welding.
Description
Technical Field
The invention belongs to the technical field of piping construction of fine chemical engineering equipment, and particularly relates to a height-adjustable pipe section auxiliary welding system and a height-adjustable pipe section auxiliary welding method.
Background
In fine chemical engineering, welding is an important connection mode for high-pressure pipeline construction. The welding flange connection is convenient to use and can bear larger pressure. The pipe welding of the outlet pipe section of the equipment is generally performed by manual alignment welding. The manual alignment welding can cause the standard deviation of the equipment interface flange, the radial displacement and the distance exceed the standard, the stress hazard generated by the mode to the equipment can cause the equipment flange to break, in addition, because the welding alignment of the equipment outlet pipe section and the welding alignment of the flange pieces are large in quantity, constructors can bring the delay of the construction progress and the increase of the construction cost to the project through the manual alignment.
Disclosure of Invention
In order to solve the problems, the invention provides a height-adjustable pipe section auxiliary welding system and a height-adjustable pipe section auxiliary welding method, which are used for solving the problem of deviation caused by manual alignment when a pipe section and a flange are welded.
In order to achieve the above object, the present invention provides a height-adjustable auxiliary welding system for pipe sections, comprising:
the flange plate lifting adjusting device comprises a first flange plate lifting support, a guide rail fixedly connected with the first flange plate lifting support and a second flange plate lifting support in sliding connection with the guide rail, wherein the first flange plate lifting support is provided with a first flange plate fixing device and a first flange plate lifting device, the first flange plate fixing device is fixedly connected with the first flange plate lifting device through a steel rope, the second flange plate lifting support is provided with a second flange plate fixing device and a second flange plate lifting device, the second flange plate fixing device is rotatably connected with the second flange plate lifting device, the pipe section lifting adjusting device comprises a pipe section fixing structure, a pipe section lifting structure and a movable base, the pipe section fixing structure is arranged at the upper part of the pipe section lifting structure, and the pipe section fixing structure is rotatably connected with the pipe section lifting structure, the pipe section lifting structure is fixed on the upper part of the movable base and is fixedly connected with the movable base.
According to an embodiment of the present invention, the first flange fixing device includes a first flange fixing steel plate, the second flange fixing device includes a second flange fixing steel plate, a threaded hole is formed at a central position of the first flange fixing steel plate and a central position of the second flange fixing steel plate, and a plurality of bolt holes with different diameters are formed around a circumference of the threaded hole.
According to an embodiment of the invention, the first flange lifting device comprises a fixed pulley arranged on a top cross beam of the first flange lifting bracket and a winch arranged below the first flange lifting bracket, wherein a steel rope is connected to the fixed pulley, and two ends of the steel rope are fixedly connected with the first flange fixing steel plate and the winch respectively.
According to an embodiment of the invention, the second flange plate lifting device comprises a first hand lifter and a rotary screw rod which are arranged on a cross beam at the top of the second flange plate lifting support, the first hand lifter is in threaded connection with the rotary screw rod, a universal ball is arranged at the bottom of the rotary screw rod, and the rotary screw rod is rotatably connected with the second flange plate fixing steel plate through the universal ball.
According to a specific embodiment of the invention, the first flange plate lifting support comprises a first N-shaped support frame, a base and a first L-shaped steel, the base is welded at the bottom of the first N-shaped support frame, the first L-shaped steel is respectively welded and fixed with the first N-shaped support frame and the base, the second flange plate lifting support comprises a second N-shaped support frame, a channel steel platform and a second L-shaped steel, the channel steel platform is welded at the bottom of the second N-shaped support frame, and the second L-shaped steel is respectively welded and fixed with the second N-shaped support frame and the channel steel platform.
According to one specific embodiment of the invention, first steering wheels are arranged at four corners of the bottom of the channel steel platform, a counterweight is arranged above the channel steel platform, and the counterweight is fixedly connected with the channel steel platform.
According to one embodiment of the invention, the pipe section fixing structure comprises an adjusting roller, a connecting steel plate and a roller disc, wherein the adjusting roller is fixedly connected with the connecting steel plate, and the roller disc is arranged at the upper part of the adjusting roller and is rotatably connected with the adjusting roller.
According to a specific embodiment of the invention, the pipe section lifting structure comprises two supporting screw rods arranged at the upper part of the moving base, the two supporting screw rods are fixedly connected with the moving base, the bottom of each supporting screw rod is provided with a second manual-shaking lifter, the second manual-shaking lifter is in threaded connection with the supporting screw rods, a connecting rod is arranged between the two second manual-shaking lifters, two ends of the connecting rod are respectively and fixedly connected with the two second manual-shaking lifters, the top parts of the supporting screw rods are provided with sleeves, the sleeves are fixedly arranged on the lower surface of the pipe section fixing structure, and the sleeves are in threaded connection with the supporting screw rods.
According to a specific embodiment of the invention, the mobile base comprises a support plate and a second directional wheel, wherein the two ends of the support plate are fixed with a shell, the second directional wheel is fixed inside the shell, and the second directional wheel is further provided with a braking device which is used for controlling the second directional wheel to be in a locking state or an unlocking state on the guide rail.
A method of welding a height adjustable pipe segment assisted welding system, comprising:
the method comprises the following steps: respectively fixing the flange plates at the central positions of the first flange plate fixing steel plate and the second flange plate fixing steel plate through bolts;
step two: placing the pipe section to be welded between the rolling discs of the two pipe section lifting adjusting devices, and adjusting the distance between the two pipe section lifting adjusting devices according to the length of the pipe section;
step three: the first flange plate fixing steel plate is pulled to a welding height suitable for operation of constructors by using a winch;
step four: the first hand-operated lifter is shaken to pull the second flange plate fixing steel plate to the same height as the first flange plate fixing steel plate, so that the centers of the first flange plate fixing steel plate and the second flange plate fixing steel plate are positioned on the same horizontal line;
step five: the height of the pipe section to be welded is adjusted to the central position of the first flange plate fixing steel plate or the second flange plate fixing steel plate by shaking the second hand-shaking lifter, so that the height of the flange plate is consistent with the height of the pipe section to be welded;
step six: and welding the two flanges with the pipe sections to be welded.
Compared with the prior art, the height-adjustable pipe section auxiliary welding system and the welding method provided by the invention have the advantages that the two sets of vertical flange plate lifting adjusting devices and the two sets of pipe section lifting adjusting devices are arranged, the accuracy of the pipe section welding height can be ensured, and the construction efficiency is improved. Utilize the welding height of adjustable flange dish fixed steel plate adjusting flange dish, and adjust the distance between two ring flanges, but utilize height-adjusting's pipeline section lift adjusting device, ensure that the center of pipeline section keeps unanimous with the center of ring flange, the device is applicable to the pipeline section of different pipe diameters and different length, easy and simple to handle, in a flexible way, practice thrift the labour, construction safety, the efficiency of construction is high, in welding process, can avoid causing the destruction to equipment and pipeline because of artifical butt joint welded deviation produces the stress influence to equipment and pipeline.
Drawings
FIG. 1 is a schematic diagram of a height-adjustable pipe segment auxiliary welding system according to an embodiment of the invention.
Fig. 2 is a schematic structural view of a second flange lifting bracket according to an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion of a second flange lifting bracket provided in accordance with an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a pipe segment lifting adjusting device according to an embodiment of the present invention.
FIG. 5 is a flow chart of a welding method of a height adjustable pipe segment auxiliary welding system according to an embodiment of the invention.
Reference numerals:
1-fixed pulley; 2-steel rope; 3-a first flange plate lifting support; 4, fixing a steel plate by using a first flange plate; 5-a winch; 6-a guide rail; 7-a first hand lift; 8-a second flange lifting support; 9-a universal ball; 10-fixing a steel plate by a second flange plate; 11-a counterweight; 12-a first orientation wheel; 13-rolling a disc; 14-adjusting roll support; 15-connecting steel plates; 16-a connecting rod; 17-a second hand lift; 18-a second orienting wheel; 19-a housing; 20-a support plate; 21-rotating the screw; 22-a sleeve; 23-support screw.
Detailed Description
The present invention is described in detail below with reference to specific embodiments in order to make the concept and idea of the present invention more clearly understood by those skilled in the art. It is to be understood that the embodiments presented herein are only a few of all embodiments that the present invention may have. Those skilled in the art who review this disclosure will readily appreciate that many modifications, variations, or alterations to the described embodiments, either in whole or in part, are possible and within the scope of the invention as claimed.
As used herein, the terms "first," "second," and the like are not intended to imply any order, quantity, or importance, but rather are used to distinguish one element from another. As used herein, the terms "a," "an," and other similar terms are not intended to mean that there is only one of the things, but rather that the pertinent description is directed to only one of the things, which may have one or more. As used herein, the terms "comprises," "comprising," and other similar words are intended to refer to logical interrelationships, and are not to be construed as referring to spatial structural relationships. For example, "a includes B" is intended to mean that logically B belongs to a, and not that spatially B is located inside a. Furthermore, the terms "comprising," "including," and other similar words are to be construed as open-ended, rather than closed-ended. For example, "a includes B" is intended to mean that B belongs to a, but B does not necessarily constitute all of a, and a may also include C, D, E and other elements.
The terms "embodiment," "present embodiment," "an embodiment," "one embodiment," and "one embodiment" herein do not mean that the pertinent description applies to only one particular embodiment, but rather that the description may apply to yet another embodiment or embodiments. Those skilled in the art will appreciate that any descriptions made in relation to one embodiment may be substituted, combined, or otherwise combined with the descriptions in relation to another embodiment or embodiments, and that the substitution, combination, or otherwise combination of the new embodiments as produced herein may occur to those skilled in the art and are intended to be within the scope of the present invention.
Example 1
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention. With reference to fig. 1 to 4, an embodiment of the present invention provides a height-adjustable auxiliary welding system for pipe segments, including:
the flange plate lifting adjusting device comprises a first flange plate lifting support 3, a guide rail 6 fixedly connected with the first flange plate lifting support 3 and a second flange plate lifting support 8 connected with the guide rail 6 in a sliding manner, a first flange plate fixing device and a first flange plate lifting device are arranged on the first flange plate lifting support 3, the first flange plate fixing device is fixedly connected with the first flange plate lifting device through a steel rope 2, a second flange plate fixing device and a second flange plate lifting device are arranged on the second flange plate lifting support 8, the second flange plate fixing device is rotatably connected with the second flange plate lifting device, the pipe section lifting adjusting device comprises a pipe section fixing structure, a pipe section lifting structure and a movable base, the pipe section fixing structure is arranged at the upper part of the pipe section lifting structure, and the pipe section fixing structure is rotatably connected with the pipe section lifting structure, the pipe section lifting structure is fixed on the upper part of the movable base and is fixedly connected with the movable base. The height-adjustable pipe section auxiliary welding system provided by the embodiment of the invention can effectively avoid stress hazard caused by standard deviation, radial displacement and overproof spacing of equipment interface flanges due to manual alignment welding, further avoid the cracking phenomenon of the equipment flanges, and can perform prefabrication on the equipment pipe distribution pipe welding by using the height-adjustable pipe section prefabrication welding platform, thereby ensuring the accuracy of size and angle, reducing the labor degree, saving the construction cost and improving the construction efficiency.
Specifically, the supporting structures of the first flange plate lifting support 3 and the second flange plate lifting support 8 are both N-shaped supports formed by U-shaped steel, the groove of the U-shaped steel faces the inner side of the supports and can be used for fixing a first flange plate fixing steel plate 4 and a second flange plate fixing plate 10, and the first flange plate fixing steel plate 4 and the second flange plate fixing plate 10 can freely slide in the groove, wherein the first flange plate lifting support 3 comprises a first N-shaped support frame, a base and first L-shaped steel, the base is welded at the bottom of the first N-shaped support frame, two ends of the base are respectively welded with two guide rails 6, the base is used for placing and fixing a winch 5, the winch 5 and the base are adjusted and fixed by bolts, two ends of the first L-shaped steel are respectively welded and fixed with the first N-shaped support frame and the base and are used for reinforcing the first flange plate lifting support 3, the second flange plate lifting support 8 comprises a second N, channel-section steel platform and second L shaped steel, the welding of channel-section steel platform is in the bottom of second N type support frame for place counter weight 11, second L shaped steel respectively with second N type support frame and channel-section steel platform welded fastening, be used for consolidating second ring flange lifting support 3. The four corners of the bottom of the channel steel platform are provided with first directional wheels 12, the four first directional wheels 12 are respectively arranged on the guide rail 6 and can move back and forth along the guide rail 6, a counterweight 11 is arranged above the channel steel platform, and the counterweight 11 is fixedly connected with the channel steel platform. The N-shaped supports of the first flange plate lifting support 3 and the second flange plate lifting support 8 are respectively provided with scales, so that the problem that the axes of the flanges are not aligned in the operation process of workers can be solved.
Specifically, first ring flange fixing device includes first ring flange solid fixed steel plate 4, and first ring flange solid fixed steel plate 4's central point puts and is provided with the screw hole, is provided with the bolt eye of a plurality of different pipe diameters around the circumference of screw hole for the ring flange of fixed different pipe diameters, the round hole has been seted up at the top of first ring flange solid fixed steel plate 4, be used for with 2 fixed connection of steel cable. The second ring flange fixing device comprises a second ring flange fixing steel plate 10, a threaded hole is formed in the center of the second ring flange fixing plate 10, a plurality of bolt holes with different pipe diameters are formed in the circumference of the threaded hole, and are used for fixing ring flanges with different sizes, the first ring flange fixing steel plate 4 is identical to the second ring flange fixing steel plate 10 in size, placed inside grooves of U-shaped steel of the first ring flange lifting support 3 and the second ring flange lifting support 8 respectively, and connected with the first ring flange lifting support 3 and the second ring flange lifting support 8 in a sliding mode.
Specifically, first ring flange hoisting device is connected with steel cable 2 including fixed pulley 1 and the hoist engine 5 of setting in first ring flange lifting support 3 below on the crossbeam of first ring flange lifting support 3 on the fixed pulley 1, the both ends of steel cable 2 respectively with first ring flange fixed steel plate 4 and hoist engine 5 fixed connection. In the process of adjusting the height of the first flange plate fixing steel plate 4, the steel rope 2 is pulled by controlling the winch 5 to rotate, the steel rope 2 drives the first flange plate fixing steel plate 4 to slide up and down in the groove of the first flange plate lifting support 3 by bypassing the fixed pulley 1 at the top of the first flange plate lifting support 3, and when the height of the flange plate is adjusted to a preset welding position, the winch 5 is controlled to stop rotating.
Specifically, second ring flange hoisting device is including setting up first hand lift 7 and rotatory screw rod 21 on the crossbeam at 8 tops of second ring flange lifting support, set up threaded hole on the crossbeam at 8 tops of second ring flange lifting support, the aperture of this threaded hole is the same with rotatory screw rod 21's diameter, rotatory screw rod 21 passes this threaded hole and is connected with second ring flange fixed steel plate 10, first hand lift 7 sets up the top at second ring flange lifting support 8, and first hand lift 7 and rotatory screw rod 21 threaded connection, rotatory screw rod 21 bottom is provided with universal ball 9, the bottom welding of universal ball 9 is on the upper portion of second ring flange fixed steel plate 10, rotatory screw rod 21 rotates through universal ball 9 and second ring flange fixed steel plate 10 and is connected. In the process of adjusting the height of the second flange plate fixing steel plate 10, the first hand-operated lifter 7 is manually shaken to enable the rotary screw 21 to rotatably ascend or rotatably descend in the threaded hole at the top of the second flange plate lifting support 8, so as to drive the second flange plate fixing steel plate 10 to slide up and down in the groove of the second flange plate lifting support 8, because the universal ball 9 is welded at the bottom of the rotary screw 21, the bottom of the universal ball 9 is welded and fixed with the second flange plate fixing steel plate 10, in the rotating process of the rotary screw 21, the universal ball 9 can rotate along with the rotation of the rotary screw 21, but does not drive the second flange plate fixing steel plate 10 to rotate together, along with the ascending or descending of the rotary screw 21, so as to drive the second flange plate fixing steel plate 10 to slide up and down in the groove of the second flange plate lifting support 8, when the height of the flange plate is adjusted to the preset welding position, the first hand-operated lifter 7 stops rocking, and the height of the second flange fixing steel plate 10 is made to coincide with the height of the first flange fixing steel plate 4.
Specifically, the pipe section fixing structure comprises an adjusting roller support 14, a connecting steel plate 15 and a roller disc 13, wherein the adjusting roller support 14 is fixedly connected with the connecting steel plate 15, and the roller disc 13 is arranged on the upper portion of the adjusting roller support 14 and is rotatably connected with the adjusting roller support 14. Adjust the recess that the top edge that rolls support 14 is provided with tooth column structure, the both ends of rolling dish 13 are provided with the pivot respectively, two pivots that will roll dish 13 are all placed in the recess that rolls support 14, but make and mix dish 13 and roll support 14 free rotation, through selecting the position of rolling dish 13 on rolling support 14, so can change two distances of rolling between the dish 13, so that the pipeline section of fixed different pipe diameters, the pipeline of arbitrary pipe diameter can be processed to this structure, adopt such structure, the scope of suitable pipeline is wider, be particularly useful for the different operating mode of needs pipeline section radius.
Specifically, the pipe section lifting structure comprises two supporting screws 23 arranged on the upper portion of a movable base, the two supporting screws 23 are fixedly connected with the movable base, a second hand-operated lifter 17 is arranged at the bottom of each supporting screw 23, the second hand-operated lifter 17 is connected with the movable base through a bolt, the second hand-operated lifter 17 is in threaded connection with the supporting screws 23, a connecting rod 16 is arranged between the two second hand-operated lifters 17, two ends of the connecting rod 16 are respectively fixedly connected with the two second hand-operated lifters 17, a sleeve 22 is arranged at the top of each supporting screw 23, the sleeve 22 is fixedly installed on the lower surface of a connecting steel plate 15, and the sleeve 22 is in threaded connection with the supporting screws 23. In the process of adjusting the heights of the two supporting screw rods 23, the second manual-shaking lifters 17 are shaken manually, the connecting rods 16 are connected between the two second manual-shaking lifters 17, so that the two supporting screw rods 23 rotate simultaneously, the two sleeves 22 move up and down simultaneously around the two supporting screw rods 23 due to the rotation of the two supporting screw rods 23, the pipe section fixing structure further moves up and down, and the height of the pipe section is adjusted.
Specifically, the moving base comprises a supporting plate 20 and a second directional wheel 18, a housing 19 is fixed at two ends of the supporting plate 20, the second directional wheel 18 is fixed inside the housing 19, a braking device is further arranged on the second directional wheel 18, the braking device is used for controlling the second directional wheel 18 to be in a locking state or an unlocking state on the guide rail 6, the braking device can enable the second directional wheel 18 to be in the locking state or the unlocking state, when the braking device is in the locking state, the second directional wheel 18 can brake the moving base at the bottom to a position suitable for the length of a pipe section, and when the braking device is in the unlocking state, the moving base at the bottom can move relative to the bottom of the pipe gallery. By adopting the structure, the pipeline with any length can be processed, so that the movable base is in a locking or unlocking state as required, the whole operation is flexible and simple, and the movable base is particularly suitable for working conditions requiring different lengths of the pipeline sections.
Example 2
As shown in fig. 5, an embodiment of the present invention provides a welding method for a height-adjustable pipe segment auxiliary welding system, which includes the following steps:
s1: and the flanges are respectively fixed at the central positions of the first flange fixing steel plate 4 and the second flange fixing steel plate 10 through bolts.
In the embodiment of the invention, the flange plates to be welded are fixed on the first flange plate fixing steel plate 4 and the second flange plate fixing steel plate 10 by using 2-8 matched bolts.
S2: the pipe section to be welded is placed between the rolling discs 13 of the two pipe section lifting adjusting devices, and the distance between the two pipe section lifting adjusting devices is adjusted according to the length of the pipe section.
S3: the first flange plate fixing steel plate 4 is pulled up to a welding height suitable for operation of constructors by using a winch 5;
s4: the second flange plate fixing steel plate 10 is lifted to the same height as the first flange plate fixing steel plate 4 by shaking the first hand-operated lifter 7, so that the centers of the first flange plate fixing steel plate 4 and the second flange plate fixing steel plate 10 are positioned on the same horizontal line, and the circle centers of the flange plates are ensured to be at the same height.
S5: the height of the pipe section to be welded is adjusted to the central position of the first flange plate fixing steel plate 4 or the second flange plate fixing steel plate 10 by shaking the second hand-shaking lifter 17, so that the height of the flange plate is consistent with the height of the pipe section to be welded;
s6: and welding the two flanges with the pipe sections to be welded.
In conclusion, the two sets of vertical flange plate lifting adjusting devices and the two sets of pipe section lifting adjusting devices can ensure the accuracy of the pipe section welding height and improve the construction efficiency. The welding height of the flange plates is adjusted by using the adjustable flange plate fixing steel plates, the distance between the two flange plates is adjusted, and the pipe section lifting adjusting device with adjustable height is used for ensuring that the center of the pipe section is consistent with the center of the flange plates. The device is easy and simple to handle, nimble, practices thrift labour, construction safety, efficiency of construction height, in welding process, can effectively reduce the level accurate deviation of interface when welding, and this technology construction is simple, the multitube footpath pipe section is general, can avoid causing the destruction to equipment and pipeline because of artifical butt-joint welded deviation produces the stress influence to equipment and pipeline.
The concepts, principles and concepts of the invention have been described above in detail in connection with specific embodiments (including examples and illustrations). It will be appreciated by persons skilled in the art that embodiments of the invention are not limited to the specific forms disclosed above, and that many modifications, alterations and equivalents of the steps, methods, apparatus and components described in the above embodiments may be made by those skilled in the art after reading this specification, and that such modifications, alterations and equivalents are to be considered as falling within the scope of the invention. The scope of the invention is only limited by the claims.
Claims (10)
1. A height adjustable pipe segment assist welding system, comprising: ring flange lift adjustment device and pipeline section lift adjustment device, ring flange lift adjustment device include first ring flange lifting support (3), with first ring flange lifting support (3) fixed connection's guide rail (6), and with guide rail (6) sliding connection's second ring flange lifting support (8), be provided with first ring flange fixing device and first ring flange hoisting device on first ring flange lifting support (3), first ring flange fixing device with first ring flange hoisting device passes through steel cable (2) fixed connection, be provided with second ring flange fixing device and second ring flange hoisting device on second ring flange lifting support (8), second ring flange fixing device with second ring flange hoisting device rotates to be connected, pipeline section lift adjustment device includes pipeline section fixed knot structure, The pipe section lifting mechanism comprises a pipe section lifting structure and a movable base, wherein the pipe section fixing structure is arranged on the upper portion of the pipe section lifting structure and is rotatably connected with the pipe section lifting structure, the pipe section lifting structure is fixed on the upper portion of the movable base, and the pipe section lifting structure is fixedly connected with the movable base.
2. The height-adjustable auxiliary pipe section welding system according to claim 1, wherein the first flange fixing device comprises a first flange fixing steel plate (4), the second flange fixing device comprises a second flange fixing steel plate (10), a threaded hole is formed in the center of the first flange fixing steel plate (4) and the second flange fixing plate (10), and a plurality of bolt eyes with different pipe diameters are arranged around the circumference of the threaded hole.
3. The height-adjustable auxiliary pipe section welding system according to claim 1, wherein the first flange lifting device comprises a fixed pulley (1) arranged on a top cross beam of the first flange lifting support (3) and a winch (5) arranged below the first flange lifting support (3), a steel rope (2) is connected to the fixed pulley (1), and two ends of the steel rope (2) are fixedly connected with a first flange fixing steel plate (4) and the winch (5) respectively.
4. The height-adjustable pipe segment auxiliary welding system is characterized in that the second flange lifting device comprises a first hand lifter (7) and a rotating screw (21) which are arranged on a cross beam at the top of the second flange lifting support (8), the first hand lifter (7) is in threaded connection with the rotating screw (21), a universal ball (9) is arranged at the bottom of the rotating screw (21), and the rotating screw (21) is rotatably connected with the second flange fixing steel plate (10) through the universal ball (9).
5. The height-adjustable auxiliary pipe section welding system as claimed in claim 1, wherein the first flange lifting support (3) comprises a first N-shaped support frame, a base and a first L-shaped steel, the base is welded to the bottom of the first N-shaped support frame, the first L-shaped steel is welded to the first N-shaped support frame and the base, respectively, the second flange lifting support (8) comprises a second N-shaped support frame, a channel steel platform and a second L-shaped steel, the channel steel platform is welded to the bottom of the second N-shaped support frame, and the second L-shaped steel is welded to the second N-shaped support frame and the channel steel platform, respectively.
6. The height-adjustable pipe section auxiliary welding system is characterized in that first orientation wheels (12) are arranged at four corners of the bottom of the channel steel platform, a counterweight (11) is arranged above the channel steel platform, and the counterweight (11) is fixedly connected with the channel steel platform.
7. The height-adjustable auxiliary pipe section welding system according to claim 1, wherein the pipe section fixing structure comprises an adjusting roller support (14), a connecting steel plate (15) and a roller disc (13), the adjusting roller support (14) is fixedly connected with the connecting steel plate (15), and the roller disc (13) is arranged on the upper portion of the adjusting roller support (14) and is rotatably connected with the adjusting roller support (14).
8. The height adjustable pipe segment auxiliary welding system of claim 1, the pipe section lifting structure comprises two supporting screw rods (23) arranged at the upper part of the movable base, the two supporting screw rods (23) are fixedly connected with the movable base, a second manual lifting machine (17) is arranged at the bottom of the supporting screw rod (23), the second manual lifting machine (17) is in threaded connection with the supporting screw rod (23), a connecting rod (16) is arranged between the two second manual lifting machines (17), two ends of the connecting rod (16) are respectively fixedly connected with the two second hand-operated lifters (17), the top of the supporting screw rod (23) is provided with a sleeve (22), the sleeve (22) is fixedly installed on the lower surface of the pipe section fixing structure, and the sleeve (22) is in threaded connection with the supporting screw rod (23).
9. The height-adjustable pipe segment auxiliary welding system according to claim 1, wherein the moving base comprises a support plate (20) and a second orientation wheel (18), a housing (19) is fixed at two ends of the support plate (20), the second orientation wheel (18) is fixed inside the housing (19), and a braking device is further arranged on the second orientation wheel (18) and used for controlling the second orientation wheel (18) to be in a locking state or an unlocking state on the guide rail (6).
10. A welding method of a height-adjustable pipe section auxiliary welding system is characterized by comprising the following steps:
the method comprises the following steps: respectively fixing the flange plates at the central positions of the first flange plate fixing steel plate (4) and the second flange plate fixing steel plate (10) through bolts;
step two: placing a pipe section to be welded between rolling discs (13) of two pipe section lifting adjusting devices, and adjusting the distance between the two pipe section lifting adjusting devices according to the length of the pipe section;
step three: the first flange fixed steel plate (4) is lifted to a welding height suitable for operation of constructors by using a winch (5);
step four: the second flange plate fixing steel plate (10) is lifted to the same height as the first flange plate fixing steel plate (4) by shaking the first hand-operated lifter (7), so that the centers of the first flange plate fixing steel plate (4) and the second flange plate fixing steel plate (10) are positioned on the same horizontal line;
step five: the height of the pipe section to be welded is adjusted to the central position of the first flange fixed steel plate (4) or the second flange fixed steel plate (10) by shaking a second hand-shaking lifter (17), so that the height of the flange is consistent with the height of the pipe section to be welded;
step six: and welding the two flanges with the pipe sections to be welded.
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| CN202110504060.7A CN113084443A (en) | 2021-05-10 | 2021-05-10 | Height-adjustable pipe section auxiliary welding system and welding method |
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| CN202110504060.7A CN113084443A (en) | 2021-05-10 | 2021-05-10 | Height-adjustable pipe section auxiliary welding system and welding method |
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