A method of building a truss column for a wind farm installation vessel

Abstract

This application belongs to the field of shipbuilding technology and discloses a method for constructing truss columns for a wind power engineering vessel, including the following steps: constructing a digital model of the truss columns, the truss columns including main hull tubes, horizontal tubes and diagonal bracing tubes, the number of main hull tubes being five, and several horizontal tubes and several diagonal bracing tubes connecting the five main hull tubes; dividing three main hull tubes arranged along the same straight line and several horizontal tubes and several diagonal bracing tubes connecting them into lower sections; dividing the other two main hull tubes and several horizontal tubes and several diagonal bracing tubes connecting them into upper sections; dividing several horizontal tubes and several diagonal bracing tubes on one side of the lower section and the upper section into a left section, and several horizontal tubes and several diagonal bracing tubes on the other side into a right section; fabricating the sections; placing the lower section on an assembly jig; assembling the left section and the right section onto the lower section; assembling the upper section onto the left section and the right section. This construction method can reduce construction difficulty, improve construction efficiency, and shorten the construction cycle.

Description

Technical Field

[0001] This application relates to the field of shipbuilding technology, specifically to a method for constructing truss columns for a wind power engineering vessel. Background Technology

[0002] Wind power engineering vessels are specifically designed for the construction and maintenance of offshore wind power projects, and are crucial equipment for offshore wind power development. Related technologies include... Figure 1 As shown, the wind power engineering vessel includes a lower hull, an upper hull, and truss columns erected between the lower and upper hulls. Both the lower and upper hulls are rectangular box-shaped structures. Engineering equipment, such as cranes or hoists, is usually installed on the upper hull. The truss columns are located at positions corresponding to the engineering equipment and are mainly used to reinforce the support below the engineering equipment. They also support the upper hull and improve the stability of the engineering vessel.

[0003] For truss columns with uneven and asymmetrical shapes, especially those with twisted shapes, a variety of pipe specifications and types are required, and it is difficult to control the precise segmentation of the three-dimensional shape. If conventional bulk or bottom-up construction methods are used, the construction efficiency will be low, the difficulty will be high, and the construction cycle will be long.

[0004] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0005] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide a method for constructing truss columns for wind power engineering vessels, which can reduce construction difficulty, improve construction efficiency, and shorten the construction cycle.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a method for constructing truss columns for a wind power engineering vessel, including the following steps:

[0008] Constructing a digital model: Constructing a digital model of the truss column, wherein the truss column includes main hull tubes, horizontal tubes and diagonal bracing tubes, and the number of main hull tubes is five, with several horizontal tubes and several diagonal bracing tubes connecting the five main hull tubes;

[0009] Panel division: Based on the digital model of the truss column, the three main hull pipes arranged along the same straight line and the several horizontal pipes and several diagonal bracing pipes connecting them are divided into the lower panel; the other two main hull pipes and the several horizontal pipes and several diagonal bracing pipes connecting them are divided into the upper panel; the lower panel and the several horizontal pipes and several diagonal bracing pipes on one side of the upper panel are divided into the left panel, and the several horizontal pipes and several diagonal bracing pipes on the other side are divided into the right panel;

[0010] Film fabrication: Fabricating the lower film, the upper film, the left film, and the right film;

[0011] Panel assembly: The lower panel is placed on the assembly jig with its main hull tube roughly horizontal; the left and right panels are assembled to the lower panel; the upper panel is assembled to the left and right panels.

[0012] As an optional scheme for the construction method of the truss columns of the wind power engineering vessel, in the construction model, the five main hull pipes are respectively designated as the first main hull pipe, the second main hull pipe, the third main hull pipe, the fourth main hull pipe, and the fifth main hull pipe. The first main hull pipe, the second main hull pipe, and the third main hull pipe are arranged at intervals along a first straight line, and the fourth main hull pipe and the fifth main hull pipe are arranged at intervals along a second straight line. The second straight line is parallel to the first straight line, the fourth main hull pipe is opposite to the third main hull pipe, and the fifth main hull pipe is opposite to the first main hull pipe.

[0013] As an optional scheme for the truss column construction method of the wind power engineering vessel, in the segment division, the first main hull pipe, the second main hull pipe, the third main hull pipe, and a number of horizontal pipes and a number of diagonal bracing pipes between them are divided into the lower segment; the fourth main hull pipe, the fifth main hull pipe, and a number of horizontal pipes and a number of diagonal bracing pipes between them are divided into the upper segment; the number of horizontal pipes and a number of diagonal bracing pipes between the first main hull pipe and the fourth main hull pipe are divided into the left segment; and the number of horizontal pipes and a number of diagonal bracing pipes between the third main hull pipe and the fourth main hull pipe are divided into the right segment.

[0014] As an optional solution to the truss column construction method of the wind power engineering vessel, the sheet body fabrication also includes pipe processing, which includes the following steps:

[0015] The incoming pipe materials are grouped and inspected according to the pipe materials used for the main hull pipes, the pipe materials used for the horizontal pipes, and the pipe materials used for the diagonal bracing pipes;

[0016] Based on the digital model of the main hull tube, the main hull tube is divided into 13 sections, and the sections used for the main hull tube that have passed inspection are grouped and numbered.

[0017] Based on the digital model of the horizontal pipe, the pipe material used for the qualified horizontal pipe is cut with intersecting lines.

[0018] Based on the numerical model of the inclined support tube, the pipe material used for the qualified inclined support tube is cut with intersecting lines.

[0019] As an optional solution for the truss column construction method of the wind power engineering vessel, the fabrication of the sheet metal, after the pipe processing, also includes the fabrication of a main hull pipe assembly, which includes the following steps:

[0020] Based on the digital model of the main hull tube, the main hull tube is divided into a first end tube section, a middle straight tube section, and a second end tube section;

[0021] The first end pipe section, the intermediate straight pipe section, and the second end pipe section are respectively manufactured using the 13 sections of the main hull pipe.

[0022] As an optional method for constructing the truss columns of the aforementioned wind power engineering vessel, the following steps are included in the process of manufacturing the lower body:

[0023] Fabrication of the lower body jig: Based on the digital model of the lower body, the first geodetic survey line is drawn. The first geodetic survey line includes the center line of the first main hull tube, the center line of the second main hull tube, the center line of the third main hull tube, and the center line of each horizontal tube in the lower body. Then, the lower body jig is fabricated based on the first geodetic survey line. The lower body jig includes the jig of the first main hull tube, the jig of the second main hull tube, the jig of the third main hull tube, and the jig of each horizontal tube in the lower body.

[0024] Assemble the lower main hull tubes: Place the first end tube, the middle straight tube, and the second end tube of the first main hull tube into the first main hull tube jig and perform positioning welding; place the first end tube, the middle straight tube, and the second end tube of the second main hull tube into the second main hull tube jig and perform positioning welding; place the first end tube, the middle straight tube, and the second end tube of the third main hull tube into the third main hull tube jig and perform positioning welding.

[0025] Assemble the lower plate horizontal tubes: Place each horizontal tube of the lower plate into the corresponding horizontal tube jig and position it, and then weld and fix each horizontal tube to the first main hull tube, the second main hull tube and the third main hull tube.

[0026] Assemble the lower body diagonal bracing tubes: Weld and fix each diagonal bracing tube of the lower body to each horizontal tube, the first main hull tube, the second main hull tube and the third main hull tube, and place a diagonal bracing tube frame under each diagonal bracing tube of the lower body to support each diagonal bracing tube.

[0027] As an optional method for constructing the truss columns of the aforementioned wind power engineering vessel, the following steps are included in the process of manufacturing the upper body:

[0028] Fabrication of the upper body jig: Based on the digital model of the upper body, a second geodetic survey line is drawn. The second geodetic survey line includes the center line of the fourth main hull tube, the center line of the fifth main hull tube, and the center line of each horizontal tube in the upper body. Then, the upper body jig is fabricated based on the second geodetic survey line. The upper body jig includes the jig of the fourth main hull tube, the jig of the fifth main hull tube, and the jig of each horizontal tube in the upper body.

[0029] Assemble the upper body main hull tube: Place the first end tube, the middle straight tube, and the second end tube of the fourth main hull tube on the fourth main hull tube jig and perform positioning welding; place the first end tube, the middle straight tube, and the second end tube of the fifth main hull tube on the fifth main hull tube jig and perform positioning welding.

[0030] Assemble the upper plate horizontal tubes: Place each horizontal tube of the upper plate into the corresponding horizontal tube jig and position it, and then weld and fix each horizontal tube to the fourth main hull tube and the fifth main hull tube;

[0031] Assemble the upper body diagonal bracing tubes: Weld and fix each diagonal bracing tube of the upper body to each horizontal tube, the fourth main hull tube and the fifth main hull tube, and place a support frame for each diagonal bracing tube under each diagonal bracing tube of the upper body.

[0032] As an optional method for constructing the truss columns of the aforementioned wind power engineering vessel, the truss column molds have horizontal baselines of 14000mm, 22000mm, and 30000mm; the process of fabricating the left hull includes the following steps:

[0033] Based on the left-side digital model, a third geodetic survey line is drawn, which includes the center lines of each horizontal tube in the left-side body; a horizontal tube frame supporting each horizontal tube in the left-side body is then constructed based on the third geodetic survey line.

[0034] Place each horizontal tube on its corresponding horizontal tube jig and adjust the tilt angle of each horizontal tube according to the relative position data of the first main hull tube and the fifth main hull tube in the truss column digital model.

[0035] Positioning auxiliary steel wires are pulled at both ends of each horizontal pipe;

[0036] The left segment is divided into two regions with a horizontal baseline of 22000mm as the boundary. The diagonal support tubes and horizontal tubes in the two regions are welded and fixed to form two left segments. When welding the diagonal support tubes and horizontal tubes, ensure that the center of the end of the diagonal support tube coincides with the positioning auxiliary steel wire.

[0037] As an optional method for constructing the truss columns of the aforementioned wind power engineering vessel, the truss column molds have horizontal baselines of 14000mm, 22000mm, and 30000mm; the process of manufacturing the right-side body includes the following steps:

[0038] Based on the right-side digital model, a fourth geodetic line is delineated, which includes the center lines of each horizontal tube in the right-side body; a horizontal tube frame supporting each horizontal tube in the right-side body is then constructed based on the fourth geodetic line.

[0039] Place each horizontal tube on its corresponding horizontal tube jig, and adjust the tilt angle of each horizontal tube according to the relative position data of the third main hull tube and the fourth main hull tube in the truss column digital model.

[0040] Positioning auxiliary steel wires are pulled at both ends of each horizontal pipe;

[0041] The right segment is divided into two regions with a horizontal baseline of 22000mm as the boundary. The diagonal support tubes and horizontal tubes in the two regions are welded and fixed to form two right segments. When welding the diagonal support tubes and horizontal tubes, ensure that the center of the end of the diagonal support tube coincides with the positioning auxiliary steel wire.

[0042] As an optional method for constructing the truss columns of the aforementioned wind power engineering vessel, the assembly process of the sheet metal includes the following steps:

[0043] Based on the lower piece of the jig frame, columns are added to both sides of the lower piece of the jig frame to form a three-dimensional jig frame;

[0044] The two left segments of the left piece and the two right segments of the right piece are respectively hoisted above the lower piece and installed on the three-dimensional jig using steel wires;

[0045] The two left segments of the left body are respectively positioned and welded to the first main hull tube of the lower body, and the two right segments of the right body are respectively positioned and welded to the third main hull tube of the lower body.

[0046] The upper piece is hoisted above the left and right pieces;

[0047] The fifth main hull tube of the upper body is positioned and welded to the two left segments of the left body, and the fourth main hull tube of the upper body is positioned and welded to the two right segments of the right body.

[0048] The two left segments are positioned and welded together, and the two right segments are positioned and welded together.

[0049] The beneficial effects of this application are as follows:

[0050] The method for constructing the truss columns of the wind turbine engineering vessel provided in this application includes the following steps: Model construction: Constructing a digital model of the truss columns, which includes main hull tubes, horizontal tubes, and diagonal bracing tubes. There are five main hull tubes, connected by several horizontal tubes and several diagonal bracing tubes; Panel division: Based on the digital model of the truss columns, the three main hull tubes arranged along the same straight line, along with the connected horizontal tubes and several diagonal bracing tubes, are divided into lower panels; the other two main hull tubes and connecting horizontal tubes are further divided into lower panels. The upper section is divided into several horizontal pipes and several diagonal bracing pipes connected to it; the lower section and several horizontal pipes and several diagonal bracing pipes on one side of the upper section are divided into the left section, and several horizontal pipes and several diagonal bracing pipes on the other side are divided into the right section; Section fabrication: fabricate the lower section, upper section, left section and right section; Section assembly: place the lower section on the assembly jig with its main hull pipes roughly flat; assemble the left section and right section to the lower section; assemble the upper section to the left section and right section.

[0051] This truss column construction method divides the truss column into four sections, each of which is constructed separately. This effectively controls the construction accuracy and quality. The construction cycles of each section overlap, which is conducive to the verification of data between them and improves the safety, quality and efficiency of segmented construction. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the wind power engineering vessel provided in the embodiments of this application.

[0053] Figure 2 This is a schematic diagram of the truss column provided in the embodiment of this application.

[0054] Figure 3 This is a cross-sectional view of the truss column provided in the embodiment of this application.

[0055] Figure 4 This is a schematic diagram of the sheet division and assembly of the truss column provided in the embodiments of this application.

[0056] Figure 5 This is a schematic diagram of the pipe provided in the embodiment of this application after being cut along the intersecting line and marked with a quarter-point punch mark.

[0057] Figure 6 This is a schematic diagram of the fabrication of the main hull tube assembly provided in the embodiments of this application.

[0058] Figure 7 This is an assembly diagram of the first or second end section of the main hull tube provided in the embodiments of this application.

[0059] Figure 8 This is a schematic diagram of the positioning baseline of the first or second end section of the main hull tubes other than the second main hull tube, provided in the embodiments of this application.

[0060] Figure 9 This is a schematic diagram of the positioning baseline of the first or second end section of the second main tube provided in the embodiments of this application.

[0061] Figure 10 This is the first assembly schematic diagram of the middle straight section of the main hull tube provided in the embodiments of this application.

[0062] Figure 11 This is a second assembly schematic diagram of the middle straight section of the main hull tube provided in the embodiments of this application.

[0063] Figure 12 This is the third assembly schematic diagram of the middle straight section of the main hull tube provided in the embodiments of this application.

[0064] Figure 13 This is the first schematic diagram of the fabrication of the lower sheet provided in the embodiments of this application.

[0065] Figure 14 This is a second schematic diagram of the fabrication of the lower sheet provided in the embodiments of this application.

[0066] Figure 15 This is a schematic diagram of the fabrication of the upper sheet provided in the embodiments of this application.

[0067] Figure 16 This is the first schematic diagram of the fabrication of the left sheet provided in the embodiments of this application.

[0068] Figure 17 This is a second schematic diagram of the fabrication of the left sheet provided in the embodiments of this application.

[0069] Figure 18 This is the first schematic diagram of the fabrication of the right sheet provided in the embodiments of this application.

[0070] Figure 19 This is a second schematic diagram of the fabrication of the right sheet provided in the embodiments of this application.

[0071] Figure 20 This is a schematic diagram of the left or right sheet body with added reinforcing members provided in the embodiments of this application.

[0072] Figure 21 This is a schematic diagram of the sheet assembly provided in the embodiments of this application.

[0073] In the picture:

[0074] 100. Lower shell; 200. Upper shell; 300. Truss column;

[0075] 10. Lower piece; 20. Upper piece; 30. Left piece; 40. Right piece;

[0076] 1a. First main hull tube; 1b. Second main hull tube; 1c. Third main hull tube; 1d. Fourth main hull tube; 1e. Fifth main hull tube; 11. First end tube section; 12. Intermediate straight tube section; 13. Second end tube section;

[0077] 2. Horizontal pipe;

[0078] 3. Diagonal bracing pipe;

[0079] 4. Reinforcing components;

[0080] 51. Lower body frame; 52. Three-dimensional frame. Detailed Implementation

[0081] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0082] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0084] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0085] like Figure 1As shown, the wind power engineering vessel includes a lower hull 100, an upper hull 200, and truss columns 300 erected between the lower hull 100 and the upper hull 200. Both the lower hull 100 and the upper hull 200 are rectangular box-shaped structures. Engineering equipment, such as cranes or hoists, is usually installed on the upper hull 200. The truss columns 300 are located at positions corresponding to the engineering equipment and are mainly used to reinforce the support below the engineering equipment. They can also support the upper hull 200 and improve the stability of the engineering vessel.

[0086] like Figures 2 to 3 As shown, the truss column 300 includes main hull tubes, diagonal bracing tubes 3, and horizontal tubes 2. The truss column 300 comprises five main hull tubes, four of which are located at the four corners of the cross-section of the truss column 300, and the remaining tube is located in the middle of the line connecting two of the corners. The main hull tubes are connected by horizontal tubes 2 and diagonal bracing tubes 3. Because the truss column 300 has an overall tower shape, wider at the bottom than the top, and the inclination angle of the starboard aft main hull tube is inconsistent with the inclination angles of the other four main hull tubes, the truss column 300 is twisted overall.

[0087] The five main hull tubes are designated as first main hull tube 1a, second main hull tube 1b, third main hull tube 1c, fourth main hull tube 1d, and fifth main hull tube 1e. The first main hull tube 1a, second main hull tube 1b, and third main hull tube 1c are arranged at intervals along a first straight line, and the fourth main hull tube 1d and fifth main hull tube 1e are arranged at intervals along a second straight line. The second straight line is parallel to the first straight line. The fourth main hull tube 1d is opposite to the third main hull tube 1c, and the fifth main hull tube 1e is opposite to the first main hull tube 1a.

[0088] like Figure 4 Combination Figures 2 to 3 As shown, this application provides a method for constructing truss columns for a wind power engineering vessel, including the following steps:

[0089] Constructing a digital model: Constructing a digital model of truss column 300. Truss column 300 includes main hull tubes, horizontal tubes 2 and diagonal bracing tubes 3. There are five main hull tubes, and several horizontal tubes 2 and several diagonal bracing tubes 3 are connected between the five main hull tubes.

[0090] Panel division: Based on the digital model of the truss column 300, the three main hull pipes arranged along the same straight line and the several horizontal pipes 2 and several diagonal bracing pipes 3 connected to them are divided into the lower panel 10; the other two main hull pipes and the several horizontal pipes 2 and several diagonal bracing pipes 3 connected to them are divided into the upper panel 20; the several horizontal pipes 2 and several diagonal bracing pipes 3 on one side of the lower panel 10 and the upper panel 20 are divided into the left panel 30, and the several horizontal pipes 2 and several diagonal bracing pipes 3 on the other side are divided into the right panel 40.

[0091] Film body production: produce lower film body 10, upper film body 20, left film body 30 and right film body 40;

[0092] Panel assembly: Place the lower panel 10 on the assembly jig with its main hull tube roughly flat; assemble the left panel 30 and right panel 40 onto the lower panel 10; assemble the upper panel 20 onto the left panel 30 and right panel 40.

[0093] The truss column construction method provided in this application divides the truss column 300 into a lower section 10, a left section 30, a right section 40, and an upper section 20. Each section is constructed separately, which effectively controls the construction accuracy and quality. The construction cycles of each section overlap, which is conducive to the verification of data between them and improves the safety, quality, and efficiency of segmented construction.

[0094] Furthermore, in the segment division, the first main hull tube 1a, the second main hull tube 1b, the third main hull tube 1c, and several horizontal tubes 2 and several diagonal bracing tubes 3 between them are divided into the lower segment 10; the fourth main hull tube 1d, the fifth main hull tube 1e, and several horizontal tubes 2 and several diagonal bracing tubes 3 between them are divided into the upper segment 20; the several horizontal tubes 2 and several diagonal bracing tubes 3 between the first main hull tube 1a and the fourth main hull tube 1d are divided into the left segment 30; and the several horizontal tubes 2 and several diagonal bracing tubes 3 between the third main hull tube 1c and the fourth main hull tube 1d are divided into the right segment 40.

[0095] It should be noted that when the truss column 300 is in its working state, its lower section 10 is located near the midships and extends roughly vertically. Its upper section 20 is opposite to the lower section 10. The left section 30 connects to one side of the upper section 20 and the lower section 10, and the right section 40 connects to the other side of the upper section 20 and the lower section 10. The term "lower section 10" is used because during the assembly of the truss column 300, the lower section 10 is placed on the jig with its main hull tube roughly horizontal. Then, the left section 30 and the right section 40 are assembled, and finally the upper section 20 is assembled. In other words, the section orientations are named according to their positions during assembly, not according to their positions when the truss column 300 is in its working state.

[0096] In addition, when the truss column 300 is in working condition, the truss column 300 has a horizontal baseline of 14000mm, a horizontal baseline of 22000mm and a horizontal baseline of 30000mm. A horizontal pipe 2 is provided at each of the three horizontal baselines, and the horizontal pipe 2 at each location also extends in the horizontal direction. These three horizontal baselines are the key baselines for constructing the truss column 300.

[0097] The sheet body fabrication process also includes tubing processing, which includes the following steps:

[0098] The incoming pipe materials are grouped and inspected according to the pipe materials used for the main hull pipe, the pipe materials used for horizontal pipe 2, and the pipe materials used for diagonal bracing pipe 3.

[0099] Based on the digital model of the main hull tube, the main hull tube is divided into 13 sections, and the sections used for the main hull tube that have passed inspection are grouped and numbered.

[0100] Based on the digital model of horizontal pipe 2, the pipes used for horizontal pipe 2 that have passed inspection are cut along the intersecting line.

[0101] Based on the digital model of the diagonal bracing tube 3, the pipe material used for the qualified diagonal bracing tube 3 is cut with intersecting lines.

[0102] For example, the diameter of the first end tube 11 and the second end tube 13 of all main hull tubes is 1600 mm, the diameter of the middle straight tube 12 is 1300 mm, the wall thickness at the connection between the main hull tube and the diagonal bracing tube 3 is 50 mm, and the wall thickness at other locations is 30 mm. The diameter of the horizontal tube 2 in the lower plate 10 and the upper plate 20 is 508 mm and the wall thickness is 18 mm, and the diameter of the remaining horizontal tubes 2 is 350 mm and the wall thickness is 18 mm. The diameter of the diagonal bracing tube 3 connected to the first end tube 11 and the second end tube 13 of the main hull tube is 508 mm and the wall thickness is 25 mm, and the diameter of the remaining diagonal bracing tubes 3 is 350 mm and the wall thickness is 18 mm.

[0103] In the incoming pipe materials, each main hull pipe includes 13 pipe fittings, including one each of φ1600*2500*50mm made of EH36 and E500, two φ1600 and φ1300 adapters with a length of 1000mm and a thickness of 50mm made of EH36, four φ1300*50mm made of EH36, and five φ1300*30mm made of DH36.

[0104] The incoming inspection of main hull tubes mainly includes the following aspects: 1) Certificate inspection. Certificates must be approved by CCS and the shipowner, including material certificates, welding material test certificates, dimensional inspection reports, NDT reports, and heat treatment reports. 2) Surface inspection. The surface of the main hull tubes is not allowed to have defects such as weld slag and spatter. 3) Marking inspection. Part numbers, inspection lines, and various markings should be clear and complete. 4) Dimensional inspection. Dimensional inspection (including length, diameter, roundness, and circumference) is required after the main hull tubes are cut and processed.

[0105] For the diagonal bracing pipe 3 and the horizontal pipe 2, the incoming material inspection items are the same as those for the main hull pipe. However, the dimensional inspection is carried out by sampling. The requirements are: the length tolerance is between -0mm and +5mm; the straightness deviation is less than or equal to 3mm / m and less than or equal to 0.2% within the total length range.

[0106] In addition, the intersection line cutting of the pipe used for horizontal pipe 2 and the intersection line cutting of the pipe used for inclined support pipe 3 both include the following steps: 1) marking the pipe template; 2) making four punch marks on the pipe, two of which are located in the same horizontal plane and the other two are located in the same vertical plane; 3) test running the cutting machine; 4) cutting one end of the pipe; 5) after inspection and approval, cutting the other end of the pipe.

[0107] The processed diagonal bracing pipe 3 needs to undergo corresponding inspections, which are divided into two parts: length dimension inspection and bevel shape inspection. The length dimension inspection is carried out in the following manner, with a tolerance requirement of 0-2mm. The intersection line bevel shape inspection is carried out using a special reverse template. The template is made of pipe material of the same specifications as the object being inspected and includes all node types.

[0108] In addition, the following points should be noted: 1) The cutting environment for the intersection bevel must be kept at a certain temperature, with preheating, insulation, and slow cooling measures. 2) Careful marking is required before cutting. 3) Considering the welding gap, the marked cutting length should be 2mm shorter than the theoretical value. 4) The arc starting point needs to be set outside the bevel line, and cutting should be done outside the line. 5) To ensure the quality of the bevel cutting, a specific operating procedure must be developed.

[0109] like Figure 5 As shown, after the intersection line is cut, a set of four-quarter mark points should be made at both ends and the middle of the pipe, for a total of 3 sets. Each set of four-quarter mark points contains 4 mark points, dividing the circular cross-section into 4 equal segments, and the mark points at the same position in the three sets of mark points should be located in the same plane.

[0110] In the fabrication of the sheet metal, after the tubing is processed, the process also includes the fabrication of main hull tube components, such as... Figure 6 As shown, the fabrication of the main hull tube assembly includes the following steps:

[0111] Based on the digital model of the main hull tube, the main hull tube is divided into the first end tube section 11, the intermediate straight tube section 12, and the second end tube section 13.

[0112] The first end pipe section 11, the intermediate straight pipe section 12, and the second end pipe section 13 are respectively made using 13 sections of the main hull pipe.

[0113] In other words, during the fabrication of the main hull tube components, all the main hull tube materials are first fabricated into three parts according to requirements, and then the three parts are assembled into a whole. In addition, each component is fabricated by first making two sections at a time, and then splicing them together to form a whole.

[0114] In some embodiments, during the fabrication and welding of the main hull pipe joint, carbon dioxide manual welding is used on the inner side and submerged arc automatic welding is used on the outer side, and the pipe is beveled on both sides.

[0115] For example, the straight pipe fabrication process of the first end pipe section 11 and the second end pipe section 13 includes the following steps: 1) Mark the assembly line and inspection line with diameters of 1600mm and 1300mm respectively on the steel platform; 2) Assemble the pipe according to the assembly line and inspection line. Use clamps and jacks on the steel platform to check the position of the inspection line and determine the roundness and dimensions with a steel ruler. Use jacks or pullers to adjust the roundness of the upper end on the inside of the pipe, and use a plumb bob and ruler to check the roundness and verticality; 3) To prevent welding shrinkage deformation, reinforce the shape 150mm inside the upper and lower ends of the pipe; 4) Weld the joint of the single pipe section. Except for E500 material workpieces which require a special jig, other materials can be directly placed on a flat steel platform and fixed (note that the bevel is directly below). First, manually weld the inner weld of the pipe with CO2 (submerged arc welding can be tried on site); 5) After the inner weld of the pipe is completed, flip it 180 degrees with the bevel facing upwards and fix it. The weld seam is cleaned by carbon gouging and inspected, and then welded using submerged arc welding. During this process, the following should be noted: 1) When assembling E500 material, the plate must be preheated, and 81K2 welding wire should be used for tack welding; 2) For 30mm thick plate seams, ordinary 501 welding wire should be used. For 50mm thick EH36 plate seams, the plate should be heated to 65°C with a heating gun to remove moisture before welding, and 711NI welding wire should be used. For E500 material plate seams, the plate should be heated to (110°C~150°C) with a heating element before welding, and 91K2 welding wire should be used.

[0116] For example, the manufacturing process of the large and small joint pipes of the first end pipe section 11 and the second end pipe section 13 includes the following steps: 1) Marking an assembly line of 1600mm diameter and an inspection line of 100mm diameter on a steel platform; 2) Assembling the pipes as ordinary straight pipes, and reinforcing them at 150mm from the top and bottom; 3) Welding the inner weld first, followed by the outer weld. The inner weld is welded manually with CO2, and the outer weld is welded automatically with submerged arc welding. During this process, it should be noted that a 200mm delay zone should be left at each end of the weld for adjustment during butt jointing.

[0117] For example, during the assembly of the straight pipe and the large and small connector pipes of the first end pipe section 11 and the second end pipe section 13, such as Figure 7The process includes the following steps: 1) First, make a special jig and mark the cross lines. 2) Hoist the straight pipe onto the jig and fix it, and weld two positioning clips at the end where it connects to the large and small connector pipes. 3) Hoist the large and small connector pipes and pull a steel wire in the center for auxiliary positioning. 4) After positioning, connect and fix the straight pipe to the jig using a clip plate, and fix the butt joint between the straight pipe and the large and small connector pipes using clips. 5) Use CO2 manual welding to symmetrically weld the vertical butt joints on the left and right sides, then rotate the part 90° and weld the remaining vertical butt joints. 6) After the internal welding is completed, measure the straightness of the workpiece and mark the bending position and data. If the bending is within 5mm, do not adjust it for now, and weld the outer weld first at the marked position on the protruding side. If the bending is greater than 5mm, adjust it to be within 5mm using a flame welder. 7) Clean the root with a carbon planer, grind the bevel and report for inspection. 8) Place the adjusted workpiece on a special roller and weld the outer weld using submerged arc welding (weld the protruding part first). 9) After welding, flaw detection and accuracy inspection are performed. 10) Map the group's positioning reference points. Because the main hull tube has a certain angle of inclination, and the direction of inclination is inconsistent with the ship's longitudinal and transverse directions, the length and short directions of the upper tire base surface and the intersection line are inconsistent, requiring re-mapping of the positioning baseline.

[0118] like Figure 8 As shown, the positioning baselines for the first end tube section 11 and the second end tube section 13 (excluding the second main hull tube 1b) of the main hull tube are determined by measuring one-eighth of the circumference from the center of the weld to both sides and setting them as two reference points A and D respectively. Then, the opposite points B and C of points A and D are determined.

[0119] like Figure 9 As shown, the positioning baseline of the second main hull tube 1b is drawn as follows: the transverse reference point A is located at the center of the longitudinal weld, the opposite reference point B is located, and the two other reference points C and D are located at the two ends of the line perpendicular to the center line connecting points A and B.

[0120] For example, during the fabrication of the intermediate straight pipe section 12, a two-by-two connection method is adopted, ultimately connecting them into a whole. Taking the assembly of A11 and A12 as an example, the assembly process includes the following steps: 1) Mark the cross inspection line on the steel platform. 2) According to the cross line, position A11 and A12, aligning the upper and lower mortise points with the center line of the steel platform, and ensuring the left and right mortise points are horizontally aligned (while avoiding the longitudinal butt joints of the two pipe sections being on the same line, staggering them by at least 250mm). 3) Butt joint gap control: for 50mm thick pipes, add a 3mm shrinkage allowance; for 30mm thick steel pipes, add a 2mm shrinkage allowance. 4) Before welding the tack weld, the bevel must be cleaned. The tack weld is welded to the outside of the pipe, using CO2 manual welding for positioning. The tack weld length is not less than 50mm, and the tack weld thickness is 10mm-12mm for 50mm thick pipes and 6mm-8mm for 30mm thick pipes. The tack weld spacing is 400mm. 5) When tack welding, welding should be symmetrical. After assembly, self-inspection and adjustment should be performed according to the dimensions and accuracy requirements of the drawings. 6) The welding method is the same as steps 5) to 8) in the assembly of the straight pipe and large and small joint pipes of the first end pipe 11 and the second end pipe 13. First weld the inner weld, and then weld the outer weld after carbon gouging and root cleaning. 7) After welding, flaw detection and accuracy inspection should be performed, and records should be made.

[0121] During the fabrication of the main hull tube components, the following points should be noted: 1) Welding should be carried out strictly in accordance with the requirements, and the welding process should be monitored. If any deviation in straightness is found, welding should be suspended, adjusted, and then resumed. 2) After every two sections of the main hull tube are joined together, they should be sent to the painting room for painting. Before painting, all seams should be protected with tape.

[0122] like Figures 10 to 12 As shown, the assembly process of each component of the intermediate straight pipe section 12 includes: 1) jig fabrication, requiring the horizontal deviation at the jig template to be less than or equal to ±2mm. 2) Pipe positioning on the jig. The straightness and horizontal deviation of the pipe positioning jig should be less than or equal to ±1mm / 5m (less than or equal to ±1.5mm / 10m), and the thickness misalignment at the joint should be evenly distributed and less than or equal to 1mm. 3) Connecting the components in pairs to form a whole. 4) Welding using the butt welding method for single-section pipes (welding the inner weld first, then welding the outer weld using submerged arc welding) and performing flaw detection and precision inspection.

[0123] In some embodiments, during the fabrication of the lower sheet 10, such as Figures 13 to 14 As shown, it includes the following steps:

[0124] Fabrication of the lower body frame 51: Based on the digital model of the lower body 10, the first ground survey line is drawn. The first ground survey line includes the center line of the first main hull tube, the center line of the second main hull tube, the center line of the third main hull tube, and the center lines of each horizontal tube 2 in the lower body 10 (i.e., the center lines of the horizontal tubes corresponding to the 14000mm horizontal baseline, the 22000mm horizontal baseline, and the 30000mm horizontal baseline). Then, the lower body frame 51 is fabricated based on the first ground survey line. The lower body frame 51 includes the first main hull tube frame, the second main hull tube frame, the third main hull tube frame, and the frame of each horizontal tube in the lower body 10.

[0125] Assemble the lower main hull tubes: Place the first end tube 11, the middle straight tube 12, and the second end tube 13 of the first main hull tube 1a into the first main hull tube jig and perform positioning welding; place the first end tube 11, the middle straight tube 12, and the second end tube 13 of the second main hull tube 1b into the second main hull tube jig and perform positioning welding; place the first end tube 11, the middle straight tube 12, and the second end tube 13 of the third main hull tube 1c into the third main hull tube jig and perform positioning welding.

[0126] Assemble the lower plate horizontal tubes: Place each horizontal tube 2 of the lower plate 10 into the corresponding horizontal tube jig and position it, and then weld and fix each horizontal tube 2 to the first main hull tube 1a, the second main hull tube 1b and the third main hull tube 1c.

[0127] Assemble the lower body diagonal bracing tubes: Weld and fix each diagonal bracing tube 3 of the lower body 10 to each horizontal tube 2, the first main hull tube 1a, the second main hull tube 1b and the third main hull tube 1c, and place a diagonal bracing tube frame under each diagonal bracing tube 3 of the lower body 10 to support each diagonal bracing tube 3.

[0128] Specifically, during the fabrication of the lower body 10, the following points should be noted: 1) The first ground survey line includes the center lines of each main hull pipe and each horizontal pipe. The center line of the second main hull pipe is the center line of the lower body jig 51. The straightness deviation of all first ground survey lines must be ≤ ±1mm, and the distance deviation between the center line of the second main hull pipe and the jig center line must be ≤ ±0.5mm. Furthermore, the lower body jig 51 is used not only for assembling the lower body 10 but also for assembling the truss columns 300. 2) Fabricate jigs for each main hull pipe and each horizontal pipe 2 according to the first ground survey line. The jig material should be 20# channel steel or spherical steel of 260mm or more. The jig for the main hull pipe should have diagonal bracing. 3) Hoist the three components of each main hull pipe onto the corresponding jigs, ensuring the rotation angle of each main hull pipe is accurate. 4) Determine the height of the main hull pipe based on the newly added height baseline on the main hull pipe and the first ground survey line (using a plumb line, with an error less than or equal to ±0.5mm). 5) After positioning, use clamps to fix each main hull tube to the jig. Then weld the butt joints of the three components of each main hull tube according to requirements. 6) After the butt joint welding is completed, perform non-destructive testing and precision inspection as required. 7) Hoist the horizontal tube 2 and diagonal brace tube 3 one by one according to the part number. 8) After the diagonal brace tube 3 is positioned and installed, add diagonal brace tube jigs appropriately according to the height of each diagonal brace tube 3. 9) The horizontal tube 2 connecting each main hull tube is precisely positioned and installed according to the dimensions required in the drawings, and the assembly gap is controlled within 6mm. Perform precision inspection before welding. 10) Weld according to the typical node requirements. It is required to arrange an even number of welders to weld the two side joints connecting to the middle main hull tube first, then weld the joints connecting to the two side main hull tubes, and finally weld the joints connecting the diagonal brace tubes 3.

[0129] In some embodiments, during the fabrication of the upper sheet 20, such as Figure 15 As shown, it includes the following steps:

[0130] Fabricate the lower body frame 51: Based on the digital model of the upper body 20, delineate the second geodetic line. The second geodetic line includes the center line of the fourth main hull tube, the center line of the fifth main hull tube, and the center lines of each horizontal tube 2 in the upper body 20 (i.e., the center lines of the horizontal tubes corresponding to the 14000mm horizontal baseline, the 22000mm horizontal baseline, and the 30000mm horizontal baseline). Then, fabricate the upper body frame based on the second geodetic line. The upper body frame includes the fourth main hull tube frame, the fifth main hull tube frame, and the frame for each horizontal tube 2 in the upper body 20.

[0131] Assemble the upper body main hull tubes: Place the first end tube 11, the middle straight tube 12, and the second end tube 13 of the fourth main hull tube 1d into the fourth main hull tube jig and perform positioning welding; place the first end tube 11, the middle straight tube 12, and the second end tube 13 of the fifth main hull tube 1e into the fifth main hull tube jig and perform positioning welding.

[0132] Assemble the upper plate body horizontal tubes: Place each horizontal tube 2 of the upper plate body 20 into the corresponding horizontal tube jig and position it, and then weld and fix each horizontal tube 2 to the fourth main hull tube 1d and the fifth main hull tube 1e.

[0133] Assemble the upper body diagonal bracing tubes: Weld and fix each diagonal bracing tube 3 of the upper body 20 to each horizontal tube 2, the fourth main hull tube 1d and the fifth main hull tube 1e, and place a support frame for each diagonal bracing tube 3 under each diagonal bracing tube 3 of the upper body 20.

[0134] The precautions for making the upper film 20 can be found in the precautions for making the lower film 10, and will not be repeated here.

[0135] In some embodiments, during the fabrication of the left sheet 30, such as Figures 16 to 17 As shown, it includes the following steps:

[0136] Based on the digital model of the left body 30, the third geodetic survey line is delineated. The third geodetic survey line includes the center lines of each horizontal pipe 2 in the left body 30 (i.e., the center lines of the horizontal pipes corresponding to the 14000mm horizontal baseline, the 22000mm horizontal baseline, and the 30000mm horizontal baseline). Based on the third geodetic survey line, a horizontal pipe frame is constructed to support each horizontal pipe 2 in the left body 30.

[0137] Place each horizontal tube 2 on the corresponding horizontal tube frame, and adjust the tilt angle of each horizontal tube 2 according to the relative position data of the first main hull tube 1a and the fifth main hull tube 1e in the digital model of the truss column 300.

[0138] Positioning auxiliary steel wires are pulled at both ends of each horizontal pipe 2;

[0139] The left segment 30 is divided into two regions with a horizontal baseline of 22000mm as the boundary. The diagonal support pipes 3 and horizontal pipes 2 in the two regions are welded and fixed to form two left segments. When welding the diagonal support pipes 3 and horizontal pipes 2, ensure that the center of the port of the diagonal support pipe 3 coincides with the positioning auxiliary steel wire.

[0140] In some embodiments, during the fabrication of the right sheet 40, such as Figures 18 to 19 As shown, it includes the following steps:

[0141] Based on the digital model of the right body 40, the fourth geodetic line is delineated. The fourth geodetic line includes the center lines of each horizontal pipe 2 in the right body 40 (i.e., the center lines of the horizontal pipes corresponding to the 14000mm horizontal baseline, the 22000mm horizontal baseline, and the 30000mm horizontal baseline). Based on the fourth geodetic line, a horizontal pipe frame is constructed to support each horizontal pipe 2 in the right body 40.

[0142] Place each horizontal tube 2 on the corresponding horizontal tube frame, and adjust the tilt angle of each horizontal tube 2 according to the relative position data of the third main hull tube 1c and the fourth main hull tube 1d in the digital model of the truss column 300.

[0143] Positioning auxiliary steel wires are pulled at both ends of each horizontal pipe 2;

[0144] The right segment 40 is divided into two regions with a horizontal baseline of 22000mm as the boundary. The diagonal support pipes 3 and horizontal pipes 2 in the two regions are welded and fixed to form two right segments. When welding the diagonal support pipes 3 and horizontal pipes 2, ensure that the center of the port of the diagonal support pipe 3 coincides with the positioning auxiliary steel wire.

[0145] During the fabrication of the left slide body 30 and the right slide body 40, such as Figure 20 As shown, the following steps are included: reinforcement members 4 are added to both ends of the connection between the two left segments or the two right segments and the main hull tube to ensure the stability of the structure of the left segment 30 and the right segment 40, so as to facilitate subsequent overall assembly.

[0146] During the assembly of the sheet, such as Figure 21 As shown, it includes the following steps:

[0147] Based on the lower body frame 51, columns are added to both sides of the lower body frame 51 to form a three-dimensional frame 52;

[0148] The two left segments of the left piece 30 and the two right segments of the right piece 40 are respectively hoisted above the lower piece 10 and installed on the three-dimensional jig 52 using steel wires;

[0149] The two left segments of the left body 30 are respectively positioned and welded to the first main hull tube 1a of the lower body 10, and the two right segments of the right body 40 are respectively positioned and welded to the third main hull tube 1c of the lower body 10.

[0150] The upper film 20 is hoisted above the left film 30 and the right film 40;

[0151] The fifth main hull tube 1e of the upper plate 20 is positioned and welded to the two left segments of the left plate 30, and the fourth main hull tube 1d of the upper plate 20 is positioned and welded to the two right segments of the right plate 40.

[0152] The two left segments are positioned and welded together, and the two right segments are positioned and welded together.

[0153] During this process, the following points should be noted: 1) The assembly jig consists of the lower body jig 51 and the three-dimensional jig 52. 2) The jig layout and surveying are based on the longitudinal and transverse center lines of the jig as the positioning reference. 3) The welding material used for jig welding must be uniform and cannot be scrap welding wire or solid welding wire from the product ship. 4) For the lower body jig 51, the jig is arranged in two stages, with the following requirements: 1) In the first stage, the jig for the lower body 10 is arranged as required. After the lower body 10 is constructed, the accuracy and strength of the jig are checked again. 2) In the second stage, columns are added to the original lower body jig 51 to create the three-dimensional jig 52. 5) The two rows of columns and the horizontal level of the assembly jig are the key points for accuracy monitoring. The height of the remaining angle steel and columns shall be based on the actual height of the template box after installation.

[0154] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A method for constructing truss columns for a wind power engineering vessel, characterized in that, Includes the following steps: Constructing a digital model: Constructing a digital model of the truss column, wherein the truss column includes a main hull tube, a horizontal tube (2) and a diagonal brace tube (3), wherein there are five main hull tubes, and several horizontal tubes (2) and several diagonal brace tubes (3) are connected between the five main hull tubes. Plate division: Based on the digital model of the truss column, the three main hull pipes arranged along the same straight line and the several horizontal pipes (2) and several diagonal bracing pipes (3) connected to them are divided into the lower plate (10); the other two main hull pipes and the several horizontal pipes (2) and several diagonal bracing pipes (3) connected to them are divided into the upper plate (20); the lower plate (10) and the several horizontal pipes (2) and several diagonal bracing pipes (3) on one side of the upper plate (20) are divided into the left plate (30), and the several horizontal pipes (2) and several diagonal bracing pipes (3) on the other side are divided into the right plate (40). Film preparation: Prepare the lower film (10), the upper film (20), the left film (30) and the right film (40). Panel assembly: The lower panel (10) is placed on the assembly jig with its main tube roughly horizontal; the left panel (30) and the right panel (40) are assembled to the lower panel (10); the upper panel (20) is assembled to the left panel (30) and the right panel (40). In the constructed digital model, the five main hull tubes are respectively designated as the first main hull tube (1a), the second main hull tube (1b), the third main hull tube (1c), the fourth main hull tube (1d), and the fifth main hull tube (1e). The first main hull tube (1a), the second main hull tube (1b), and the third main hull tube (1c) are arranged at intervals along a first straight line, and the fourth main hull tube (1d) and the fifth main hull tube (1e) are arranged at intervals along a second straight line. The second straight line is parallel to the first straight line. The fourth main hull tube (1d) is opposite to the third main hull tube (1c), and the fifth main hull tube (1e) is opposite to the first main hull tube (1a). In the segment division, the first main hull tube (1a), the second main hull tube (1b), the third main hull tube (1c), and a number of horizontal tubes (2) and a number of diagonal bracing tubes (3) between the three are divided into the lower segment (10); the fourth main hull tube (1d), the fifth main hull tube (1e), and a number of horizontal tubes (2) and a number of diagonal bracing tubes (3) between the two are divided into the upper segment (20); the number of horizontal tubes (2) and a number of diagonal bracing tubes (3) between the first main hull tube (1a) and the fourth main hull tube (1d) are divided into the left segment (30); and the number of horizontal tubes (2) and a number of diagonal bracing tubes (3) between the third main hull tube (1c) and the fourth main hull tube (1d) are divided into the right segment (40).

2. The method for constructing the truss columns of a wind power engineering vessel according to claim 1, characterized in that, The sheet fabrication process also includes tubing processing, which comprises the following steps: The incoming pipe materials are grouped and inspected according to the pipe materials used for the main hull pipe, the pipe materials used for the horizontal pipe (2), and the pipe materials used for the diagonal bracing pipe (3); Based on the digital model of the main hull tube, the main hull tube is divided into 13 sections, and the sections used for the main hull tube that have passed inspection are grouped and numbered. According to the digital model of the horizontal pipe (2), the pipe material used for the qualified horizontal pipe (2) is cut with intersecting lines; According to the digital model of the inclined support tube (3), the pipe material used for the qualified inclined support tube (3) is cut with intersecting lines.

3. The method for constructing the truss columns of a wind power engineering vessel according to claim 2, characterized in that, In the fabrication of the sheet body, after the tubing treatment, the fabrication of the main hull tube assembly is also included, which comprises the following steps: Based on the digital model of the main hull tube, the main hull tube is divided into a first end tube section (11), a middle straight tube section (12), and a second end tube section (13). The first end pipe section (11), the intermediate straight pipe section (12), and the second end pipe section (13) are respectively made using the 13 sections of the main hull pipe.

4. The method for constructing the truss columns of the wind power engineering vessel according to claim 3, characterized in that, The process of creating the lower sheet (10) includes the following steps: Fabrication of the lower body frame: Based on the digital model of the lower body (10), the first ground survey line is drawn. The first ground survey line includes the center line of the first main hull pipe, the center line of the second main hull pipe, the center line of the third main hull pipe, and the center line of each horizontal pipe (2) in the lower body (10). Then, the lower body frame (51) is fabricated based on the first ground survey line. The lower body frame (51) includes the first main hull pipe frame, the second main hull pipe frame, the third main hull pipe frame, and the frame of each horizontal pipe in the lower body (10). Assemble the lower main hull tubes: Place the first end tube (11), the middle straight tube (12), and the second end tube (13) of the first main hull tube (1a) on the first main hull tube jig and perform positioning welding; place the first end tube (11), the middle straight tube (12), and the second end tube (13) of the second main hull tube (1b) on the second main hull tube jig and perform positioning welding; place the first end tube (11), the middle straight tube (12), and the second end tube (13) of the third main hull tube (1c) on the third main hull tube jig and perform positioning welding. Assemble the lower plate horizontal tubes: Place each horizontal tube (2) of the lower plate (10) into the corresponding horizontal tube jig and position it, and then weld and fix each horizontal tube (2) to the first main hull tube (1a), the second main hull tube (1b) and the third main hull tube (1c); Assemble the lower plate body diagonal support tubes: Weld and fix each diagonal support tube (3) of the lower plate body (10) to each horizontal tube (2), the first main hull tube (1a), the second main hull tube (1b) and the third main hull tube (1c), and place a diagonal support tube frame under each diagonal support tube (3) of the lower plate body (10).

5. The method for constructing the truss columns of a wind power engineering vessel according to claim 4, characterized in that, The process of creating the upper body (20) includes the following steps: Fabrication of the upper body frame: Based on the digital model of the upper body (20), a second geodetic line is drawn. The second geodetic line includes the center line of the fourth main hull tube, the center line of the fifth main hull tube, and the center line of each horizontal tube (2) in the upper body (20). Then, the upper body frame is fabricated based on the second geodetic line. The upper body frame (20) includes the fourth main hull tube frame, the fifth main hull tube frame, and the frame of each horizontal tube in the upper body (20). Assemble the upper body main hull tube: Place the first end tube (11), the middle straight tube (12), and the second end tube (13) of the fourth main hull tube (1d) on the fourth main hull tube jig and perform positioning welding; place the first end tube (11), the middle straight tube (12), and the second end tube (13) of the fifth main hull tube (1e) on the fifth main hull tube jig and perform positioning welding; Assemble the upper plate body horizontal tubes: Place each horizontal tube (2) of the upper plate body (20) in the corresponding horizontal tube jig and position it, and then weld and fix each horizontal tube (2) to the fourth main hull tube (1d) and the fifth main hull tube (1e); Assemble the upper body diagonal support tubes: Weld and fix each diagonal support tube (3) of the upper body (20) to each horizontal tube (2), the fourth main hull tube (1d) and the fifth main hull tube (1e), and place a support frame for each diagonal support tube (3) under each diagonal support tube (3) of the upper body (20).

6. The method for constructing the truss columns of a wind power engineering vessel according to claim 5, characterized in that, The truss column molds have horizontal baselines of 14000mm, 22000mm, and 30000mm; the process of making the left sheet (30) includes the following steps: Based on the digital model of the left body (30), a third geodetic line is drawn, which includes the center line of each horizontal tube (2) of the left body (30); a horizontal tube frame supporting each horizontal tube (2) in the left body (30) is made based on the third geodetic line. Place each horizontal tube (2) on the corresponding horizontal tube frame, and adjust the tilt angle of each horizontal tube (2) according to the relative position data of the first main hull tube (1a) and the fifth main hull tube (1e) in the truss column digital model; Positioning auxiliary steel wires are pulled at both ends of each horizontal pipe (2); The left piece (30) is divided into two regions with a horizontal baseline of 22000mm as the boundary. The diagonal support pipe (3) in each region is welded and fixed to the horizontal pipe (2) to form two left pieces. When welding the diagonal support pipe (3) to the horizontal pipe (2), ensure that the center of the port of the diagonal support pipe (3) coincides with the positioning auxiliary wire.

7. The method for constructing the truss columns of a wind power engineering vessel according to claim 6, characterized in that, The truss column molds have horizontal baselines of 14000mm, 22000mm, and 30000mm; the process of making the right sheet (40) includes the following steps: Based on the digital model of the right body (40), the fourth geodetic line is delineated, which includes the center line of each horizontal tube (2) in the right body (40); and a horizontal tube frame supporting each horizontal tube (2) in the right body (40) is made based on the fourth geodetic line. Place each horizontal tube (2) on the corresponding horizontal tube frame, and adjust the tilt angle of each horizontal tube (2) according to the relative position data of the third main hull tube (1c) and the fourth main hull tube (1d) in the truss column digital model; Positioning auxiliary steel wires are pulled at both ends of each horizontal pipe (2); The right segment (40) is divided into two regions with a horizontal baseline of 22000mm. The diagonal support pipe (3) in each region is welded and fixed to the horizontal pipe (2) to form two right segments. When welding the diagonal support pipe (3) to the horizontal pipe (2), ensure that the center of the port of the diagonal support pipe (3) coincides with the positioning auxiliary wire.

8. The method for constructing the truss columns of a wind power engineering vessel according to claim 7, characterized in that, The assembly process for the substrate includes the following steps: Based on the lower body frame (51), columns are added on both sides of the lower body frame (51) to form a three-dimensional frame (52). The two left segments of the left piece (30) and the two right segments of the right piece (40) are respectively hoisted above the lower piece (10) and installed on the three-dimensional frame (52) using steel wire. The two left segments of the left body (30) are respectively positioned and welded to the first main hull tube (1a) of the lower body (10), and the two right segments of the right body (40) are respectively positioned and welded to the third main hull tube (1c) of the lower body (10). The upper piece (20) is hoisted above the left piece (30) and the right piece (40); The fifth main hull tube (1e) of the upper plate (20) is positioned and welded to the two left segments of the left plate (30), and the fourth main hull tube (1d) of the upper plate (20) is positioned and welded to the two right segments of the right plate (40). The two left segments are positioned and welded together, and the two right segments are positioned and welded together.

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