CN103624488B - A kind of self-lifting offshore wind power job platform spud leg manufacturing process - Google Patents
A kind of self-lifting offshore wind power job platform spud leg manufacturing process Download PDFInfo
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- CN103624488B CN103624488B CN201310568815.5A CN201310568815A CN103624488B CN 103624488 B CN103624488 B CN 103624488B CN 201310568815 A CN201310568815 A CN 201310568815A CN 103624488 B CN103624488 B CN 103624488B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
- E02D2300/0032—Steel; Iron in sheet form, i.e. bent or deformed plate-material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
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- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Piles And Underground Anchors (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention discloses a kind of manufacturing process of self-lifting offshore wind power job platform spud leg, comprises the following steps: steel blanking, prefabricated; Group structure is prefabricated; Single tube restraining is made; The each segmentation manufacture of leg; Cladding plate assembles; Pin hole is rule; Pin hole cuts; The assembling of cladding plate secondary, welding; Inner anti-seawater cover assembling, welding.Spud leg of the present invention adopts segmentation manufacture, the manufacturing process that final integral is closed up, and by controlling the precision that each segmentation manufactures, guarantees the accuracy of manufacture of whole spud leg.
Description
Technical field
The present invention relates to a kind of self-lifting offshore wind power job platform spud leg manufacturing process.
Background technology
Self-lifting offshore wind power job platform, its major function is under sea bed basis has enough bearing capacity situations, more than the offshore wind farm job platform main body emersion water surface, avoids current, wave to platform direct effect, has influence on the operation of platform.After installation exercise completes, utilize elevating mechanism that platform is down to sea, and four spud legs are risen, make platform be in floating state, to move boat to next station carrying out windmill installation exercise; In this hydraulic lifting system, the manufacture of spud leg is most important.Because its accuracy of manufacture requires that high, difficulty greatly, therefore proposes very high requirement to spud leg manufacturing process.The spud leg manufacturing process flow generally adopted at present is loaded down with trivial details, complicated; Auxiliary material are many, and cost is large; Mechanical automation degree is low, and labor strength is large; Spud leg linearity, circularity are poor; The shortcomings such as transverse direction, longitudinal pin hole bigger error.
Summary of the invention
The object of the invention is to overcome above deficiency, a kind of reasonable, efficient, safe and reliable self-lifting offshore wind power job platform spud leg manufacturing process is provided.
Object of the present invention is achieved through the following technical solutions: a kind of self-lifting offshore wind power job platform spud leg manufacturing process, comprises the following steps:
A, first steel blanking, prefabricated: steel plate first to be cut hangs centering on Cutting platform, sets level, and compress prevent mobile; Process each component groove, note groove direction, the processing of bevel for welding, transition zone makes mechanically to process as far as possible, spud leg tube coupling steel plate adopts NC Flame Cutting blanking, adopt semi-automatic flame shape cutting bevel, other section bars can adopt Manual flame cutting to carry out blanking and groove preparation, spud leg cylindrical shell volume round plate width groove cuts off surplus and opens after forcing press presses two, first line will be pulled before bevel, prevent out partially, 0 ~ 2mm root is stayed in centre, opens before steel plate length direction groove volume circle after blanking; After steel blanking, the sheet material of different stage uses the paint of different colours to carry out writing of various mark, prevents material with mixed; Before rolling, thickness, size, diagonal, the flatness of inspection steel plate, draw mark line, strike sample dotting punch; Before rolling first with hydraulic press veneer reeling machine volume pressure less than plate end regions according to tube coupling radius pressure arc, output groove; Will make before tube coupling rolls and detect model (inside and outside pattern), model length at least should be greater than 1/3 circumference; Tube coupling carry out roller system after accurate positioning on roller bed; Pressure head and roller bowlder machined surface and model clearance requirement≤2.0mm; The steel plate of end press-bending radian is delivered to veneer reeling machine and is carried out tube coupling and roll, and the docking dislocation of plate controls within 2mm, and the plate seam two ends steel plate of same material stack pile is fixed as run-on tab, and mid portion is at outside (1/3 groove side) tack welding;
B, group structure are prefabricated: the first jigsaw of the 16mm flanged plate of ring muscle, the then inner 26*300 stiffening ring of welding equipment, and the small gusset of 16mm, Φ 3200 ± 2mm when requiring the external diameter 48mm wall thickness of most terminal ring muscle, and Φ 3210 ± 2mm during 42mm wall thickness, is up to the standards;
The restraining of C, single tube is made: roll the tube coupling of end through welding after the assay was approved, and tube coupling rolls longitudinal joint docking and adopts Lincoln weld; Run-on tab is installed before welding, and carefully check groove linearity, flatness, bevel angle and cleannes, require that single tube coupling linearity is less than 2mm, flatness is less than 2mm, after requiring combination for V or X-type groove, angle is greater than 50 °, and the smooth metal luster of groove interior surface, adopts SAW automatic welding after passed examination, one side carries out back gouging after having welded, and after back chipping, careful polishing carries out SAW automatic welding again; Tube coupling cylindrical shell piece, preheat temperature 80-100 ° of C; After UT detection is qualified, Hui Yuan, diameter tolerance ± 2mm;
The each segmentation manufacture of D, spud leg: every pile leg divides 3 segmentations, is respectively LEG1, LEG2, LEG3; Each segmentation is made up of 3 ~ 4 subsections again, totally 11 subsections; Each subsection is made up of 2 tube couplings, and two tube couplings are respectively after the assay was approved in turning rolls docking, and tube coupling joint uses the horse plate of stack pile ad eundem to connect, and position while welding stayed welding hole; Needing after welding uses thermal insulation material controls weld seam cool time well; Postwelding should check the overall circularity of subsection: diameter tolerance ± 2mm; Postwelding 48 hours, butt welded seam carries out 100%UT, reaches CB/T3559-1994I grade standard; 50%MT reaches CB/T3958-2004I grade standard; And spot-check 10%-20% carry out X-ray detect reach CB/T3558-1994 II grade standard;
E, cladding plate assemble: the independent machined of cladding plate, with reference to corresponding process for machining, after machined terminates, prepare groove, line assembling pin hole cladding plate also carries out mark, assemble from the cladding plate of first block, bottom, by the assembling of line size, assembly test requires pin hole longitudinal pitch tolerance+1mm, 10 hole cumulative errors 5mm, horizontal spacing tolerance+1.5mm, in four latch controls of same level position, lower deviation is not more than 1mm, the spud leg center of circle is aimed at pin hole center, left and right should be orthogonal with the center line of front and back, rule on cylindrical shell along cladding plate pin hole, cleaning eye inner barrel surface, rule on cylindrical shell along cladding plate pin hole profile, note rule must perpendicular to drum surface, lay down pin hole cladding plate, mark is carried out on the cladding plate assembled, require the position of necessary clear and definite every block cladding plate, termination towards, lay down pin hole cladding plate, and put neat, put by group, pin hole on shape cutting cylindrical shell, after checking size to reach requirement after cutting first pin hole, cutting can be continued, cladding plate close up seam each 100mm in left and right rule and cut, and spot welding is nearby on cylindrical shell, welding equipment when scene closes up,
The assembling of F, cladding plate secondary, welding: be assembled to successively after on spud leg by cladding plate by ready-made flag sequence, again weld after the assay was approved, postwelding polishing pin hole is inner, and the inner anti-seawater cover assembling of spud leg, welding postwelding polish smooth.
The present invention compared with prior art has the following advantages: have the advantages such as workable, operating efficiency is high, the accuracy of manufacture is high, labour intensity is less, reasonable, efficient, safe, reliable.
detailed description of the invention:
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
A kind of embodiment of a kind of self-lifting offshore wind power of the present invention job platform spud leg manufacturing process: comprise the following steps:
A, first steel blanking, prefabricated: steel plate first to be cut hangs centering on Cutting platform, sets level, and compress prevent mobile; Process each component groove, note groove direction, the processing of bevel for welding, transition zone makes mechanically to process as far as possible, spud leg tube coupling steel plate adopts NC Flame Cutting blanking, adopt semi-automatic flame shape cutting bevel, other section bars can adopt Manual flame cutting to carry out blanking and groove preparation, spud leg cylindrical shell volume round plate width groove cuts off surplus and opens after forcing press presses two, first line will be pulled before bevel, prevent out partially, 0 ~ 2mm root is stayed in centre, opens before steel plate length direction groove volume circle after blanking; After steel blanking, the sheet material of different stage uses the paint of different colours to carry out writing of various mark, prevents material with mixed; Before rolling, thickness, size, diagonal, the flatness of inspection steel plate, draw mark line, strike sample dotting punch; Before rolling first with hydraulic press veneer reeling machine volume pressure less than plate end regions according to tube coupling radius pressure arc, output groove; Will make before tube coupling rolls and detect model (inside and outside pattern), model length at least should be greater than 1/3 circumference; Tube coupling carry out roller system after accurate positioning on roller bed; Pressure head and roller bowlder machined surface and model clearance requirement≤2.0mm; The steel plate of end press-bending radian is delivered to veneer reeling machine and is carried out tube coupling and roll, and the docking dislocation of plate controls within 2mm, and the plate seam two ends steel plate of same material stack pile is fixed as run-on tab, and mid portion is at outside (1/3 groove side) tack welding;
B, group structure are prefabricated: the first jigsaw of the 16mm flanged plate of ring muscle, the then inner 26*300 stiffening ring of welding equipment, and the small gusset of 16mm, Φ 3200 ± 2mm when requiring the external diameter 48mm wall thickness of most terminal ring muscle, and Φ 3210 ± 2mm during 42mm wall thickness, is up to the standards;
The restraining of C, single tube is made: roll the tube coupling of end through welding after the assay was approved, and tube coupling rolls longitudinal joint docking and adopts Lincoln weld; Run-on tab is installed before welding, and carefully check groove linearity, flatness, bevel angle and cleannes, require that single tube coupling linearity is less than 2mm, flatness is less than 2mm, after requiring combination for V or X-type groove, angle is greater than 50 °, and the smooth metal luster of groove interior surface, adopts SAW automatic welding after passed examination, one side carries out back gouging after having welded, and after back chipping, careful polishing carries out SAW automatic welding again; Tube coupling cylindrical shell piece, preheat temperature 80-100 ° of C; After UT detection is qualified, Hui Yuan, diameter tolerance ± 2mm;
The each segmentation manufacture of D, spud leg: every pile leg divides 3 segmentations, is respectively LEG1, LEG2, LEG3; Each segmentation is made up of 3 ~ 4 subsections again, totally 11 subsections; Each subsection is made up of 2 tube couplings, and two tube couplings are respectively after the assay was approved in turning rolls docking, and tube coupling joint uses the horse plate of stack pile ad eundem to connect, and position while welding stayed welding hole; Needing after welding uses thermal insulation material controls weld seam cool time well; Postwelding should check the overall circularity of subsection: diameter tolerance ± 2mm; Postwelding 48 hours, butt welded seam carries out 100%UT, reaches CB/T3559-1994I grade standard; 50%MT reaches CB/T3958-2004I grade standard; And spot-check 10%-20% carry out X-ray detect reach CB/T3558-1994 II grade standard;
E, cladding plate assemble: the independent machined of cladding plate, with reference to corresponding process for machining, after machined terminates, prepare groove, line assembling pin hole cladding plate also carries out mark, assemble from the cladding plate of first block, bottom, by the assembling of line size, assembly test requires pin hole longitudinal pitch tolerance+1mm, 10 hole cumulative errors 5mm, horizontal spacing tolerance+1.5mm, in four latch controls of same level position, lower deviation is not more than 1mm, the spud leg center of circle is aimed at pin hole center, left and right should be orthogonal with the center line of front and back, rule on cylindrical shell along cladding plate pin hole, cleaning eye inner barrel surface, rule on cylindrical shell along cladding plate pin hole profile, note rule must perpendicular to drum surface, lay down pin hole cladding plate, mark is carried out on the cladding plate assembled, require the position of necessary clear and definite every block cladding plate, termination towards, lay down pin hole cladding plate, and put neat, put by group, pin hole on shape cutting cylindrical shell, after checking size to reach requirement after cutting first pin hole, cutting can be continued, cladding plate close up seam each 100mm in left and right rule and cut, and spot welding is nearby on cylindrical shell, welding equipment when scene closes up,
The assembling of F, cladding plate secondary, welding: be assembled to successively after on spud leg by cladding plate by ready-made flag sequence, again weld after the assay was approved, postwelding polishing pin hole is inner, and the inner anti-seawater cover assembling of spud leg, welding postwelding polish smooth.
The present invention has the advantages such as workable, operating efficiency is high, the accuracy of manufacture is high, labour intensity is less by optimal design.
Claims (1)
1. a self-lifting offshore wind power job platform spud leg manufacturing process, is characterized in that: comprise the following steps:
A, first steel blanking, prefabricated: steel plate first to be cut hangs centering on Cutting platform, sets level, and compress prevent mobile; Process each component groove, note groove direction, the processing of bevel for welding, transition zone makes mechanically to process as far as possible, spud leg tube coupling steel plate adopts NC Flame Cutting blanking, adopt semi-automatic flame shape cutting bevel, other section bars can adopt Manual flame cutting to carry out blanking and groove preparation, spud leg cylindrical shell volume round plate width groove cuts off surplus and opens after forcing press presses two, first line will be pulled before bevel, prevent out partially, 0 ~ 2mm is stayed in centre, opens before steel plate length direction groove volume circle after blanking; After steel blanking, the sheet material of different stage uses the paint of different colours to carry out writing of various mark, prevents material with mixed; Thickness, size, diagonal, the flatness of inspection steel plate before rolling, line, strikes sample dotting punch; Before rolling first with hydraulic press veneer reeling machine volume pressure less than plate end regions according to tube coupling radius pressure arc, output groove; Will make inside and outside pattern before tube coupling rolls and detect model, model length at least should be greater than 1/3 circumference; Tube coupling carry out roller system after accurate positioning on roller bed; Pressure head and roller bowlder machined surface and model clearance requirement≤2.0mm; The steel plate of end press-bending radian is delivered to veneer reeling machine and is carried out tube coupling and roll, and the docking dislocation of plate controls within 2mm, and the plate seam two ends steel plate of same material stack pile is fixed as run-on tab, and mid portion is at groove side, outside 1/3 tack welding;
B, group structure are prefabricated: the first jigsaw of the flanged plate that the 16mm of ring muscle is thick, then the stiffening ring that the inner 26mm of welding equipment thick * 300mm is wide, and the small gusset that 16mm is thick, Φ 3200 ± 2mm when requiring the external diameter 48mm wall thickness of most terminal ring muscle, during 42mm wall thickness, Φ 3210 ± 2mm, is up to the standards;
The restraining of C, single tube is made: roll the tube coupling of end through welding after the assay was approved, and tube coupling rolls longitudinal joint docking and adopts Lincoln weld; Run-on tab is installed before welding, and carefully check groove linearity, flatness, bevel angle and cleannes, require that single tube coupling linearity is less than 2mm, flatness is less than 2mm, after requiring combination for V or X-type groove, angle is greater than 50 °, and the smooth metal luster of groove interior surface, adopts SAW automatic welding after passed examination, one side carries out back gouging after having welded, and after back chipping, careful polishing carries out SAW automatic welding again; Tube coupling cylindrical shell piece, preheat temperature 80-100 ° of C; After UT detection is qualified, Hui Yuan, diameter tolerance ± 2mm;
The each segmentation manufacture of D, spud leg: every pile leg divides 3 segmentations, is respectively LEG1, LEG2, LEG3; Each segmentation is made up of 3 ~ 4 subsections again, totally 11 subsections; Each subsection is made up of 2 tube couplings, and two tube couplings are respectively after the assay was approved in turning rolls docking, and tube coupling joint uses the horse plate of stack pile ad eundem to connect, and position while welding stayed welding hole; Needing after welding uses thermal insulation material controls weld seam cool time well; Postwelding should check the overall circularity of subsection: diameter tolerance ± 2mm; Postwelding 48 hours, butt welded seam carries out 100%UT, reaches CB/T3559-1994I grade standard; 50%MT reaches CB/T3958-2004I grade standard; And spot-check 10%-20% carry out X-ray detect reach CB/T3558-1994 II grade standard;
E, cladding plate assemble: the independent machined of cladding plate, with reference to corresponding process for machining, after machined terminates, prepare groove, line assembling pin hole cladding plate also carries out mark, assemble from the cladding plate of first block, bottom, by the assembling of line size, assembly test requires pin hole longitudinal pitch tolerance+1mm, 10 hole cumulative errors 5mm, horizontal spacing tolerance+1.5mm, on four pin holes of same level position, lower deviation is not more than 1mm, the spud leg center of circle is aimed at pin hole center, left and right should be orthogonal with the center line of front and back, rule on cylindrical shell along cladding plate pin hole, cleaning eye inner barrel surface, rule on cylindrical shell along cladding plate pin hole profile, note rule must perpendicular to drum surface, lay down pin hole cladding plate, mark is carried out on the cladding plate assembled, require the position of necessary clear and definite every block cladding plate, termination towards, lay down pin hole cladding plate, and put neat, put by group, pin hole on shape cutting cylindrical shell, after checking size to reach requirement after cutting first pin hole, cutting can be continued, cladding plate close up seam each 100mm in left and right rule and cut, and spot welding is nearby on cylindrical shell, welding equipment when scene closes up,
The assembling of F, cladding plate secondary, welding: be assembled to successively after on spud leg by cladding plate by ready-made flag sequence, again weld after the assay was approved, postwelding polishing pin hole is inner, and the inner anti-seawater cover assembling of spud leg, welding postwelding polish smooth.
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CN102717168A (en) * | 2012-07-04 | 2012-10-10 | 上海振华重工集团(南通)传动机械有限公司 | Technology for manufacturing chord tube for ocean platform pile leg main coil |
CN102806428A (en) * | 2012-09-04 | 2012-12-05 | 南通润邦重机有限公司 | Integral manufacturing method for container spreader |
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