CN112475558A - Technology for processing and manufacturing steel pipe of suction tube for suction type jacket - Google Patents
Technology for processing and manufacturing steel pipe of suction tube for suction type jacket Download PDFInfo
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- CN112475558A CN112475558A CN202011155877.XA CN202011155877A CN112475558A CN 112475558 A CN112475558 A CN 112475558A CN 202011155877 A CN202011155877 A CN 202011155877A CN 112475558 A CN112475558 A CN 112475558A
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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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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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
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
- B23K9/0052—Welding of pipe panels
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a technology for processing and manufacturing a suction tube steel pipe for a suction jacket, which relates to the field of processing and manufacturing of submerged arc welding steel pipes, and comprises the suction tube steel pipe, wherein steel plates are spliced and then rolled in the processing process of the suction tube steel pipe, a barrel body deformation caused by self-weight collapse of the steel pipe is prevented through a side support and top support auxiliary tool in the rolling process, longitudinal seam submerged arc welding is performed after rolling is completed, well supports and inner reinforcing rings are additionally arranged at two ends of a single section of steel pipe, a plurality of sections of barrel bodies are assembled on a rotating roller of a special side arm support, a combined axis vehicle is used for transporting the barrel bodies to a welding station, and multiple posts are synchronously performed during girth welding. According to the technology for processing and manufacturing the steel pipe of the suction tube for the suction jacket, steel plates are spliced firstly, after the splicing of the steel plates, a circular seam groove is processed, the deviation of butt joint lines is controlled, and the misalignment amount of the rolled steel plates is ensured to meet the technological requirements.
Description
The technical field is as follows:
the invention relates to the field of processing and manufacturing of submerged arc welded steel pipes, in particular to a technology for processing and manufacturing a suction tube steel pipe for a suction type jacket.
Background art:
the wind energy is a clean energy, has the characteristics of reproducibility, availability, long-term performance, periodicity and the like, is different from fossil energy such as coal, petroleum and the like in characteristics, does not have the problems of energy exploration, energy excavation, energy processing and the like, and cannot be reduced due to the increase of the using amount in the using process, wherein the application of the wind energy is mainly wind power generation, and offshore wind power can be influenced by the marine environment and a pile foundation structure.
The suction type jacket foundation has the following advantages besides the advantages of the traditional steel pipe pile type jacket foundation: (1) the steel consumption is saved, and the manufacturing cost can be reduced; (2) the construction equipment is single in requirement, quick and simple to mount and saves the construction time; (3) a series of problems of pile-driving construction without piles; (4) is convenient to be dismantled.
The suction tube for the three-pile suction type jacket is generally made of steel, a tube base is of a straight tube structure, the diameter of the suction tube is generally 10000-13000 mm, the wall thickness is 30-60 mm, the height is more than 10000mm, the circumferential direction expansion size is more than 30000mm, and the suction tube is purchased by steel plates in sections due to the limitation of rolling size and tonnage of a steel mill.
The prior suction tube steel tube has the problems of dead weight collapse and the like due to large diameter-thickness ratio, the tube body is easy to deform, and the control difficulty is to ensure the dimensional accuracy of the tube body such as ovality and butt joint and misalignment in the production, processing and transferring processes.
The existing single-section steel pipe processing of the suction tube steel pipe generally selects a rolling arc section to carry out vertical assembly, the dimensional precision of the vertical assembly is relatively easy to control, and the defects are that the assembly consumes working hours, the auxiliary working hours are long, the manual welding quality is greatly fluctuated by human factors, and the welding quality is difficult to ensure. The shell ring diameter is big, generally is more than 10000mm, and during the welding, inefficiency, to and the transportation in-process, size precision is difficult to guarantee.
The invention content is as follows:
in order to solve the problems in the background art, the invention provides a technology for processing and manufacturing a suction tube steel tube for a suction type jacket.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: the utility model provides a suction section of thick bamboo steel pipe processing manufacturing technology for suction jacket, includes suction section of thick bamboo steel pipe, specifically includes the following steps:
firstly, splicing steel plates in the machining process of a suction cylinder steel pipe, then rolling, preventing the deformation of a cylinder body caused by the collapse of the steel pipe due to self weight through auxiliary tools of side support and top support in the rolling process, carrying out longitudinal seam submerged arc welding after the rolling is finished, additionally arranging a well support and an inner reinforcing ring at two ends of a single section of steel pipe, assembling a plurality of sections of cylinder bodies on a rotating roller of a special side holding arm support, carrying out transfer to a welding station by using a combined axis vehicle, and carrying out multi-post synchronous welding during girth welding;
welding adopts a single-wire longitudinal submerged arc welding technology, namely, firstly, backing welding is carried out on outer welding by adopting carbon dioxide gas shielded welding, then, small-specification multilayer multi-pass welding is adopted on inner welding, and small-specification multilayer multi-pass welding is adopted on outer welding;
and thirdly, setting a welding groove of the steel tube of the suction cylinder into an X-shaped groove, wherein the depth of an inner groove of the X-shaped groove is greater than that of an outer groove, and soldering tin is welded in the X-shaped groove.
Preferably, the supporting mechanism for the suction tube steel pipe for the suction type jacket comprises two groups of concave plates, the back surfaces of the concave plates are rotatably connected through a rotating shaft, a screw is in threaded connection with the upper part of each concave plate, and a fixing rod is fixedly connected with the lower part of each concave plate;
the top of the below of screw rod runs through threaded connection and has the fixed plate, and the terminal fixedly connected with turning handle in below, the fixed plate with notch plate fixed connection, the fixed cup joints the bearing in the top of screw rod, the bearing with the equal fixedly connected with arc of one side of fixed lever, the arc with the inner wall in close contact with of suction section of thick bamboo steel pipe.
Compared with the prior art, the invention has the beneficial effects that:
this suction tube steel pipe processing manufacturing technology for suction jacket, splice the steel sheet earlier, after the steel sheet concatenation, process the circumferential weld groove, control butt joint line deviation, guarantee that the back steel sheet unfitness of butt joint meets the technological requirement, in addition, the whole board system of rolling up after splicing the steel sheet, roll up the in-process and adopt supporting mechanism and install well branch and interior stiffening ring additional at suction tube steel pipe end, guarantee that size precision carries out the top branch and side branch to suction tube steel pipe, guarantee to roll up in-process size precision control, adopt special frock of lifting by crane to prevent to warp during the handling, system efficiency has been improved to rolling up.
The invention designs the groove of the X-shaped groove, the groove type saves welding materials, reduces the external welding workload and improves the welding efficiency, and the welding is carried out by adopting a longitudinal submerged arc welding technology according to the distribution structure of soldering tin in the X-shaped groove, namely, the external welding adopts a gas shielded welding wire for bottoming, then the internal and external welding adopts small standard single wire multilayer multi-pass welding, the preheating and interlayer temperature before welding are controlled in the welding process, and a special welding platform is adopted during the external welding, so that the safe operation risk is reduced and the production efficiency is improved.
According to the invention, the supporting mechanism effectively supports the suction tube steel pipe internally through the matching of the concave plate, the screw rod, the fixed rod, the supporting plate, the rotating handle, the bearing and the arc-shaped plate, and the supporting structure can be adjusted in multiple stages through the arrangement of the screw rod, so that the supporting structure can be suitable for the suction tube steel pipes with different diameters, the application range of the supporting mechanism is increased, the operation is simple, in addition, the supporting mechanism can also be suitable for tubular internal support in other fields, the utilization rate is high, and the adjustability is strong.
The invention has reasonable production process layout, is safe and efficient, provides a novel suction tube steel pipe processing and manufacturing technology for a suction jacket, provides capacity and delivery date guarantee for introducing the international advanced suction tube jacket manufacturing technology into China, accelerates the application of the suction tube jacket structural form in China, can effectively reduce the pollution of engineering construction to the marine environment, reduces the dependence of offshore wind power on large-scale marine engineering equipment, greatly reduces the engineering cost and effectively reduces the offshore construction risk.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic structural view of a suction tube steel tube welding and supporting mechanism;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
wherein: 1. a suction tube steel tube; 2. an X-shaped groove; 3. soldering tin; 4. a concave plate; 5. a screw; 6. fixing the rod; 7. a support plate; 8. rotating the handle; 9. a bearing; 10. an arc-shaped plate.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1:
referring to fig. 1-2, a technology for manufacturing a steel tube of a suction tube for a suction jacket comprises a steel tube 1 of the suction tube, wherein steel plates are spliced and rolled in the process of processing the steel tube of the suction tube, a tube body deformation caused by self-weight collapse of the steel tube is prevented through a side support and top support auxiliary tool in the rolling process, longitudinal seam submerged arc welding is performed after rolling is completed, a well support and an inner reinforcing ring are additionally arranged at two ends of a single section of the steel tube, a plurality of sections of the tube body are assembled on a rotating roller of a special side arm support, a combined axis vehicle is used for transporting the tube body to a welding station, and when girth welding is performed, a plurality of posts are synchronously performed; the welding adopts a single-wire straight seam submerged arc welding technology, namely, the outer welding adopts carbon dioxide gas shielded welding backing welding, then the inner welding adopts small-specification multilayer multi-pass welding, and the outer welding adopts small-specification multilayer multi-pass welding; the welding groove of the steel pipe 1 of the suction barrel is set to be an X-shaped groove 2, the depth of an inner groove of the X-shaped groove 2 is larger than that of an outer groove, and soldering tin 3 is welded inside the X-shaped groove 2.
The technology for processing and manufacturing the steel pipe of the suction tube for the suction type jacket specifically comprises the following steps:
step one, splicing steel plates
The expansion size of the suction type jacket is basically over 30000mm due to the ultra-large caliber, and the suction type jacket is influenced by the rolling capacity of domestic steel plates and the material flow of lifting, and the expansion size of the steel plates needs to be purchased in sections.
After the steel plate is qualified by ultrasonic flaw detection, longitudinal seam groove processing is carried out, a single-wire submerged arc welding technology is adopted for steel plate splicing, the labor condition is good, the production efficiency is high, and the welding quality is guaranteed.
And after the splicing of the steel plates, processing a circular seam groove, controlling the deviation of butt joint lines and ensuring that the misalignment of the rolled steel plates meets the process requirements.
Step two, rolling the cylinder body
In the process of rolling the single-section cylinder body, the single-section cylinder body is influenced by the self weight of the suction cylinder steel pipe 1, and collapse is easy to occur.
The whole plate is rolled up after the steel plates are spliced, a supporting mechanism is adopted to support the top and the side of the suction tube steel pipe 1 in the rolling process, the size precision control in the rolling process is guaranteed, a special lifting tool is adopted during lifting to prevent deformation, and the rolling efficiency is improved. After the steel plate is rolled into a suction tube steel pipe 1, the steel plate is hoisted to a welding post by a special hoisting tool.
Step three, longitudinal seam welding
The invention designs the groove of the X-shaped groove 2, the groove type saves welding materials, reduces the external welding workload and improves the welding efficiency, the distribution structure of the soldering tin 3 in the X-shaped groove 2 of the X-shaped groove 2 is referred to, the longitudinal submerged arc welding technology is adopted for welding, namely, the external welding is firstly bottoming by adopting a gas shielded welding wire, then the internal and external welding adopts small standard single-wire multilayer multi-pass welding, the preheating and interlayer temperature before welding are required to be controlled in the welding process, and a special welding platform is adopted during the external welding, so that the safe operation risk is reduced, and the production efficiency is improved.
Example 2:
referring to fig. 1, the supporting mechanism for the steel pipe of the suction tube for the suction jacket comprises two groups of concave plates 4, wherein the back surfaces of the two groups of concave plates 4 are rotatably connected through a rotating shaft, a screw 5 is in threaded connection with the upper part of each concave plate 4, and a fixing rod 6 is fixedly connected with the lower part of each concave plate 4; the top end of the lower part of the screw rod 5 is connected with a fixed plate 7 in a penetrating and threaded manner, the tail end of the lower part of the screw rod 5 is fixedly connected with a rotating handle 8, the fixed plate 7 is fixedly connected with the concave plate 4, the top end of the upper part of the screw rod 5 is fixedly sleeved with a bearing 9, the bearing 9 and one side of the fixed rod 6 are both fixedly connected with an arc-shaped plate 10, and the arc-shaped plate 10 is tightly contacted with the inner wall of the suction; when the supporting mechanism is used specifically, the arc-shaped plate 10 at the bottom of the fixed rod 6 is firstly placed on the inner wall of the suction tube steel pipe 1, the screw rod 5 is rotated by adjusting the rotating handle 8, and the arc-shaped plate 10 at the tail end above the screw rod 5 cannot rotate along with the screw rod due to the arrangement of the bearing 9, so that the arc-shaped plate 10 is supported on the inner wall of the suction tube steel pipe 1, and in addition, the backs of the two groups of concave plates 4 are rotatably connected through the rotating shaft, so that the angle between the two groups of concave plates 4 can be adjusted according to the specific use condition on site, and the supporting mechanism is used for supporting the suction tube steel pipe 1; the fixing plate 7 is provided to restrict the lower side of the screw 5, and has a function of balancing the screw 5.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 3:
the Q355ND steel sheet T-30 mm thick test sheet was subjected to a process evaluation test, and the evaluation parameters and the data analyzed by the physicochemical experiment after completion of welding are as follows. The welding parameters were as follows:
table-Q355 ND welding parameters of suction tube longitudinal submerged arc welding steel tube
Test for evaluating mechanical properties of weld joint of test plate by using process of Table II Q355ND
Cylinder body stress data analysis and additional support
In the production and transfer processes of the suction tube steel pipe 1, the diameter-thickness ratio is large, collapse can occur due to the self-weight influence, and the roundness of the steel pipe cannot be guaranteed. Therefore, in the single-section production process, a well support and an internal reinforcing ring are additionally arranged at the end of the steel pipe, and the size precision is ensured.
The cylinder body assembly and the cylinder section assembly process are realized, the side arm support is designed, and the deformation of the cylinder section can be effectively controlled in the cylinder section rotating process. The rotating rolls being otherwise made of conventional steel
Adjusted to steel and rubber combination
So as to increase the friction force and ensure the smooth rotation of the shell ring.
And during circular seam welding, 6 circular seam stations are adopted to synchronously perform submerged arc welding operation, the production rhythm is consistent, the multiple stations operate simultaneously, the welding time of 6 sections of the cylinder body is improved from 12 days to 2 days, the efficiency is improved by 6 times, and the productivity is increased.
The schemes in the embodiments can be selectively combined with the schemes in other embodiments.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides a suction section of thick bamboo steel tube processing preparation technique for suction jacket, includes suction section of thick bamboo steel pipe (1), its characterized in that: the method specifically comprises the following steps:
firstly, splicing steel plates in the machining process of a suction cylinder steel pipe, then rolling, preventing the deformation of a cylinder body caused by the collapse of the steel pipe due to self weight through auxiliary tools of side support and top support in the rolling process, carrying out longitudinal seam submerged arc welding after the rolling is finished, additionally arranging a well support and an inner reinforcing ring at two ends of a single section of steel pipe, assembling a plurality of sections of cylinder bodies on a rotating roller of a special side holding arm support, carrying out transfer to a welding station by using a combined axis vehicle, and carrying out multi-post synchronous welding during girth welding;
welding adopts a single-wire longitudinal submerged arc welding technology, namely, firstly, backing welding is carried out on outer welding by adopting carbon dioxide gas shielded welding, then, small-specification multilayer multi-pass welding is adopted on inner welding, and small-specification multilayer multi-pass welding is adopted on outer welding;
and thirdly, setting a welding groove of the suction cylinder steel pipe (1) as an X-shaped groove (2), wherein the depth of an inner groove of the X-shaped groove (2) is greater than that of an outer groove, and soldering tin (3) is welded in the X-shaped groove (2).
2. The technology for processing and manufacturing the steel tube of the suction tube for the suction jacket according to claim 1, wherein the technology comprises the following steps: a supporting mechanism for a suction cylinder steel pipe for a suction type jacket comprises concave plates (4), wherein two groups of concave plates (4) are arranged, the back sides of the concave plates are rotatably connected through a rotating shaft, a screw rod (5) is in threaded connection with the upper part of each concave plate (4), and a fixing rod (6) is fixedly connected with the lower part of each concave plate;
the below top of screw rod (5) runs through threaded connection and has fixed plate (7), and the terminal fixedly connected with turning handle (8) in below, fixed plate (7) with concave plate (4) fixed connection, the fixed cover in top of screw rod (5) has connect bearing (9), bearing (9) with the equal fixedly connected with arc (10) in one side of dead lever (6), arc (10) with the inner wall in close contact with of suction section of thick bamboo steel pipe (1).
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| CN202011155877.XA CN112475558A (en) | 2020-10-26 | 2020-10-26 | Technology for processing and manufacturing steel pipe of suction tube for suction type jacket |
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| CN202011155877.XA CN112475558A (en) | 2020-10-26 | 2020-10-26 | Technology for processing and manufacturing steel pipe of suction tube for suction type jacket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227156A (en) * | 2021-12-10 | 2022-03-25 | 中国水电四局(酒泉)新能源装备有限公司 | Assembly construction method of wind power foundation steel pipe piles |
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Application publication date: 20210312 |
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