CN117226223A - Manufacturing process of sheet body plate unit of oversized steel cylinder - Google Patents
Manufacturing process of sheet body plate unit of oversized steel cylinder Download PDFInfo
- Publication number
- CN117226223A CN117226223A CN202311440937.6A CN202311440937A CN117226223A CN 117226223 A CN117226223 A CN 117226223A CN 202311440937 A CN202311440937 A CN 202311440937A CN 117226223 A CN117226223 A CN 117226223A
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- plate
- welding
- steel
- sheet body
- jig frame
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 5
- 208000010392 Bone Fractures Diseases 0.000 claims description 3
- 206010017076 Fracture Diseases 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses a manufacturing process of a sheet body plate unit of an oversized steel cylinder, which is characterized by comprising the following steps of: the method comprises the following steps: dividing the steel cylinder body unit into six steel cylinder body units; blanking a steel plate according to the dividing drawing of the plate unit, and making a groove; after the jointed boards are finished, forming grooves on the periphery of the whole jointed boards; marking out a mounting line of a longitudinal T-shaped material; hoisting the plate unit sheet body structure to a sheet body forming jig frame, and fixing the steel plate and the jig frame by using a clamping code; and (3) installing the annular reinforcing rib structure, welding the transverse and longitudinal reinforcing rib structures with the sheet body outer plate, and checking after welding.
Description
Technical Field
The invention belongs to the technical field of wind power pipe pile manufacturing, and particularly relates to a manufacturing process of a sheet body plate unit of an oversized steel cylinder.
Background
The oversized steel cylinder is of a cylindrical structure, the diameter of the oversized steel cylinder is generally more than 20 meters, the oversized steel cylinder is divided into a plurality of sections when the oversized steel cylinder is manufactured at a height of 30-50 meters, the oversized steel cylinder is divided into a plurality of sheet bodies to be manufactured independently, and the sheet bodies are assembled into a steel cylinder structure after the sheet bodies are manufactured. The steel drum structure planking generally adopts the steel sheet around 19mm, and the material is AH36, and the vertical strengthening rib structure of inside strengthening rib structure generally uses the structural style of T shaped steel, and the internal annular structure generally uses the structural style of band steel. The two structures are welded in the cylinder body in a staggered way.
The conventional sheet manufacturing method is to roll a steel plate used for the sheet into an arc shape by using a rolling machine, then splice and weld the arc steel plate, and then weld the internal reinforcing ribs. Although the method can ensure that the arc-shaped outer plate is better shaped, the method has the defects of slower manufacturing speed and longer manufacturing period, and can not meet the progress requirement when manufacturing in a large scale.
Disclosure of Invention
The invention aims to provide a manufacturing process of a sheet body plate unit of an oversized steel cylinder, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a manufacturing process of a sheet body plate unit of an oversized steel cylinder comprises the following steps:
s1: the steel cylinder sheet body units are divided into six steel cylinder sheet body units, namely sheet bodies 1-6, and transverse plate seams are staggered by more than 500mm between two adjacent sheet bodies, so that stress on one position is avoided, and the fracture risk of the joint seams can be reduced;
s2: the method comprises the steps of blanking a steel plate according to a plate unit dividing diagram, forming a groove, forming a double-sided groove at the position of a steel plate splicing ring, wherein the groove angle is 50-60 DEG, splicing the blanked steel plates according to the position of a drawing part, the offset is smaller than 1mm, installing an arc striking and extinguishing plate at a plate seam position, improving the welding quality of the steel plate, welding arc striking and extinguishing stages of automatic submerged arc welding, ensuring poor welding quality, installing arc striking and extinguishing plates, enabling a weld bead with poor welding quality to be left on the arc striking and extinguishing plate, and cutting the arc striking and extinguishing plate after welding;
s3: preparing a groove: after the jointed board is finished, making grooves on the periphery of the whole jointed board, wherein the grooves are used for welding other sheet bodies, and the grooves are single-sided grooves;
s4: the installation lines of longitudinal T-shaped materials are marked, 36T-shaped materials are uniformly distributed at the inner side of the whole cylinder body, the angle interval is 10 degrees, the longitudinal T-shaped material structure is installed according to the installation position lines of the stretched T-shaped materials, and the T-shaped materials are required to be temporarily not welded after the installation is finished;
s5: hoisting the plate unit plate body structure on the plate body forming jig frame, gradually attaching the plate body structure to the jig frame structure by utilizing the dead weight of the steel cylinder plate body structure, compacting the plate body and the jig frame by using a balancing weight at a part of the position which is not tightly attached to the jig frame structure, adjusting the steel plate to be in full contact with the forming jig frame, keeping the gap not more than 3mm, and then fixing the steel plate and the jig frame by using a clamping code;
s5: and (3) installing the annular reinforcing rib structure, welding the transverse and longitudinal reinforcing rib structures and the sheet body outer plate after the installation is finished, welding the reinforcing rib structure by using carbon dioxide gas for shielded welding, and checking after the welding is finished.
The invention has the technical effects and advantages that:
the method adopts steel plate blanking, steel plate jointed board, welding, longitudinal reinforcing rib installation, sheet body dead weight forming, circumferential reinforcing rib installation, sheet body longitudinal and circumferential reinforcing rib welding, omits the step of rolling the steel plate, and uses a sheet body forming jig frame and balancing weight to help the sheet body structure to be directly formed, thus saving the whole construction cost and shortening the construction period after the step of rolling the steel plate is omitted.
Drawings
FIGS. 1-2 are block diagrams of steel plate panels;
FIG. 3 is a P-P cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of a draw-quench plate installation;
FIGS. 5, 5.1 and 5.2 are schematic views of grooves of jointed boards;
fig. 6 and 6.1 are schematic diagrams of the installation position of the longitudinal T-shaped section;
fig. 7 is a schematic view of sheet lifting;
fig. 8 is a schematic view of sheet welding transverse and longitudinal stiffeners.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1-8 show a specific embodiment of a sheet unit manufacturing process for an oversized steel cylinder according to the present invention: the method comprises the following steps:
s1: the steel cylinder sheet body units are divided into six steel cylinder sheet body units, namely sheet bodies 1-6, and transverse plate seams are staggered by more than 500mm between two adjacent sheet bodies, so that stress on one position is avoided, and the fracture risk of the joint seams can be reduced (as shown in figures 1-2);
s2: blanking a steel plate according to a plate unit dividing diagram, forming a groove, forming a double-sided groove at the position of a steel plate splicing ring, wherein the groove angle is 50-60 DEG, splicing the blanked steel plates according to the position of a drawing part, the offset is smaller than 1mm, (as shown in figures 3-4), installing an arc striking and extinguishing plate at the position of a plate seam, improving the welding quality of the steel plate, and in the welding striking and extinguishing stage of automatic submerged arc welding, the welding quality is poor, installing the arc striking and extinguishing plate, and leaving a weld bead with poor welding quality on the arc striking and extinguishing plate;
s3: preparing a groove: after the splicing plate is finished, forming grooves on the periphery of the whole splicing plate for welding with other sheet bodies, wherein the grooves are single-sided grooves (shown in figures 5, 5.1 and 5.2);
s4: the installation lines of the longitudinal T-shaped materials are marked, 36T-shaped materials are uniformly distributed at the inner side of the whole cylinder body, the angle interval is 10 degrees, the longitudinal T-shaped material structure is installed according to the unfolded installation position lines of the marked T-shaped materials, and the temporary non-welding is required after the installation is finished (as shown in figures 6 and 6.1);
s5: hoisting the plate unit plate body structure on the plate body forming jig frame, gradually attaching the plate body structure to the jig frame structure by utilizing the dead weight of the steel cylinder plate body structure, compacting the plate body and the jig frame by using a balancing weight at a part of the position which is not tightly attached to the jig frame structure, adjusting the steel plate to be in full contact with the forming jig frame, keeping the gap not more than 3mm, and then fixing the steel plate and the jig frame by using a clamping code (shown in figure 7);
s5: the mounting ring is to the strengthening rib structure, and after the installation, horizontal, vertical strengthening rib structure welds with lamellar body planking, and the welding uses carbon dioxide gas to protect and welds, and after the welding, inspection (as shown in fig. 8) is accomplished, and gas shielded welding's welding cost is low, and productivity is high, and residual stress and deformation are little after welding, and rust resistance is strong, the operation of being convenient for, application scope is wide.
The conventional method comprises the following steps: steel plate blanking, steel plate rolling, arc-shaped steel plate splicing, welding, annular mounting and welding of longitudinal reinforcing ribs.
The manufacturing method comprises the following steps: steel plate blanking, steel plate splicing, welding, longitudinal reinforcing rib installation, sheet body dead weight forming, annular reinforcing rib installation, sheet body longitudinal and annular reinforcing rib welding.
Compared with the conventional method, the manufacturing process method omits the step of rolling the steel plate, and the method of using the sheet body forming jig frame and the balancing weight to help the sheet body structure to be directly formed, so that after the step of rolling the steel plate is omitted, the whole construction cost is greatly saved, and the construction period is shortened.
The applicant has further stated that the present invention is described by the above examples as to the implementation method and apparatus structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it does not mean that the present invention must be implemented by the above methods and structures. It should be apparent to those skilled in the art that any modifications of the present invention, equivalent substitutions for the implementation method selected for the present invention, addition of steps, selection of specific modes, etc., fall within the scope of the present invention and the scope of the disclosure.
The present invention is not limited to the above embodiments, and all modes of achieving the object of the present invention by adopting the structure and method similar to those of the present invention are within the scope of the present invention.
Claims (1)
1. A process for manufacturing a sheet body plate unit of an oversized steel cylinder is characterized by comprising the following steps of: the method comprises the following steps:
s1: the steel cylinder sheet body units are divided into six steel cylinder sheet body units, namely sheet bodies 1-6, and transverse plate seams are staggered by more than 500mm between two adjacent sheet bodies, so that stress on one position is avoided, and the fracture risk of the joint seams can be reduced;
s2: the method comprises the steps of blanking steel plates according to a plate unit dividing diagram, forming grooves, forming double-sided grooves at the annular positions of the steel plates, wherein the angle of the grooves is 50-60 degrees, splicing the blanked steel plates according to the positions of drawing parts, the offset is smaller than 1mm, installing arc striking and extinguishing plates at the positions of jointed plate joints, improving the welding quality of the steel plates, welding arc striking and extinguishing stages of submerged arc automatic welding, ensuring poor welding quality, installing arc striking and extinguishing plates, and ensuring that weld beads with poor welding quality are left on the arc striking and extinguishing plates, and cutting off the arc striking and extinguishing plates after welding;
s3: preparing a groove: after the jointed board is finished, making grooves on the periphery of the whole jointed board, wherein the grooves are used for welding other sheet bodies, and the grooves are single-sided grooves;
s4: the installation lines of longitudinal T-shaped materials are marked, 36T-shaped materials are uniformly distributed at the inner side of the whole cylinder body, the angle interval is 10 degrees, the longitudinal T-shaped material structure is installed according to the installation position lines of the stretched T-shaped materials, and the T-shaped materials are required to be temporarily not welded after the installation is finished;
s5: hoisting the plate unit plate body structure on the plate body forming jig frame, gradually attaching the plate body structure to the jig frame structure by utilizing the dead weight of the steel cylinder plate body structure, compacting the plate body and the jig frame by using a balancing weight at a part of the position which is not tightly attached to the jig frame structure, adjusting the steel plate to be in full contact with the forming jig frame, keeping the gap not more than 3mm, and then fixing the steel plate and the jig frame by using a clamping code;
s5: and (3) installing the annular reinforcing rib structure, welding the transverse and longitudinal reinforcing rib structures and the sheet body outer plate after the installation is finished, welding the reinforcing rib structure by using carbon dioxide gas for shielded welding, and checking after the welding is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311440937.6A CN117226223A (en) | 2023-11-01 | 2023-11-01 | Manufacturing process of sheet body plate unit of oversized steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311440937.6A CN117226223A (en) | 2023-11-01 | 2023-11-01 | Manufacturing process of sheet body plate unit of oversized steel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117226223A true CN117226223A (en) | 2023-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311440937.6A Pending CN117226223A (en) | 2023-11-01 | 2023-11-01 | Manufacturing process of sheet body plate unit of oversized steel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117226223A (en) |
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2023
- 2023-11-01 CN CN202311440937.6A patent/CN117226223A/en active Pending
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