A process for manufacturing an offshore foundation floating body module

Abstract

The present invention discloses a process flow for manufacturing modules of an offshore foundation floating body, including S1: drawing a three-dimensional diagram of the floating body by computer; S2: drawing detailed drawings of each component part; S3: reserving welding shrinkage compensation and machining allowance for manufacturing and installation according to process requirements; S4: manufacturing the modules, checking the steel grade, specification, material and other relevant information, and inspecting the surface quality of the steel; S5: separately manufacturing the heave compartment module, connecting beam module, column module, strut module and general column. By separately manufacturing each module, it can be manufactured according to the type of wind turbine, so as to meet the floating requirements of different types and sizes of wind turbines, improve the use efficiency and expand the scope of application. By separately manufacturing the modules, it is possible to manufacture modules that cooperate with each other according to the size of the wind turbine, and it is possible to manufacture modules of different sizes according to the size of the wind turbine to accommodate wind turbines of different sizes.

Description

Technical Field

[0001] The present invention relates to the field of offshore floating bodies, and in particular to a manufacturing process of offshore basic floating body modules. Background Art

[0002] Currently, offshore wind turbine foundations are divided into fixed and floating types. Floating foundations include semi-submersible, barge-type, and tension-leg types. With the maturity of offshore wind power technology, offshore wind farms are gradually moving from nearshore to deep sea, and their foundation types are also changing from fixed to floating as the water depth changes. Semi-submersible floating platforms, with their advantages of good stability, wide applicability in water depths, and ease of construction and transportation, are becoming the mainstream foundation type for future offshore floating wind farms. The semi-submersible floating bodies used in existing technologies are mostly integrally formed, making it impossible to tailor the support modules to the size of the wind turbine, making them unsuitable for different types of wind turbines and reducing their efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the present invention provides a process flow for manufacturing offshore foundation floating body modules. By individually manufacturing modules, modules that cooperate with each other can be manufactured according to the size of the wind turbine. Modules of different sizes can be manufactured according to the size of the wind turbine to accommodate wind turbines of different sizes.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an offshore foundation floating body module, comprising a heave compartment module, a connecting beam module, a column module, a strut module and a general column.

[0005] As a preferred technical solution of the present invention, the heave compartment module, connecting beam module, column module, strut module and general column form a triangular floating body.

[0006] As a preferred technical solution of the present invention, the general column is fixedly set at the top of the column module, the support rod module includes a first diagonal rod and a cross rod, the cross rod is fixedly connected to the column module near the top, and the first diagonal rod is fixedly connected between the vertical swing cabin module and the cross rod; the column modules are provided in multiple groups; and all are arranged in a vertical state.

[0007] As a preferred technical solution of the present invention, the connecting beam modules are fixedly arranged between the heave tank modules, and the column modules are fixedly arranged on the top surfaces of the heave tank modules.

[0008] A manufacturing process flow of an offshore basic floating body module includes the offshore basic floating body module described above. The specific manufacturing process flow includes the following steps:

[0009] S1: Draw a three-dimensional diagram of the floating body by computer to obtain the precise dimensions of each part;

[0010] S2: Draw detailed drawings of each component part as the basis for drawing the cutting and nesting drawings and CNC compilation;

[0011] S3: The center of gravity position of each module and the overall size of the jacket. During layout, allowances for welding shrinkage compensation and machining allowances for manufacturing and installation shall be reserved according to process requirements.

[0012] S4: Module production, check the steel grade, specification, material and other related information, check the surface quality of the steel, if it is found that the steel is not straight, rust, paint and other dirt affecting the quality of the material, it should be corrected and cleaned before cutting to ensure the flatness of the steel plate and the parts after cutting;

[0013] S5: Produce the heave compartment module, connecting beam module, column module, strut module and general column respectively.

[0014] As a preferred technical solution of the present invention, the steps of the column module manufacturing process are as follows:

[0015] S1: First, build a tire frame on a horizontal plate, and then calibrate the tire frame;

[0016] S2: Make a single piece of column module and fix the cross bulkhead piece on the single piece wall, then splice and close the single piece to form a cylindrical shape. The whole process is completed on the tire frame.

[0017] As a preferred technical solution of the present invention, the steps of the heave tank module manufacturing process are as follows:

[0018] S1: First, prepare the top plate sheet, bottom plate sheet, curved outer wall sheet, straight outer wall sheet, cross inner bulkhead sheet, straight inner bulkhead sheet and arc-shaped bulkhead sheet;

[0019] S2: Fabricate half of the heave tank module. Build a flat jig on the horizontal ground, lay the bottom plate, install the cross inner bulkhead plate, install the arc inner bulkhead plate, install the arc outer wall plate, install the straight inner bulkhead plate, install the straight outer wall plate, and finally install the top plate. Then fabricate the other half of the heave tank module.

[0020] S3: Symmetrically connect the two halves of the heave tank module and then weld them.

[0021] As a preferred technical solution of the present invention, the steps of the manufacturing process of the connecting beam module are as follows:

[0022] S1: First, prepare the top plate, bottom plate, inner bulkhead, cabin bulkhead, side wall, web and reinforcement ribs.

[0023] S2: Lay the bottom plate sheet on a horizontal surface, then lay and fix the reinforcement ribs on the top surface of the bottom plate sheet, fix multiple inner partition plate sheets on the reinforcement ribs, and fix the web plate sheets on both sides of the inner partition plate sheet, and the bottom end of the web plate sheet is fixed to the reinforcement ribs, then fix the cabin partition plate sheet, the cabin partition plate sheet is arranged between the reinforcement ribs and the web plate sheet, then fix the side wall sheet on the side wall of the cabin partition plate sheet, and then cover the top plate sheet on the top surface of the side wall sheet, and fix the bottom surface of the top plate sheet to the cabin partition plate sheet and the top surface of the inner wall partition plate sheet, wherein a structural support accessory is provided between the side wall sheets, and the structural support accessory is the cabin partition plate sheet, which is used to reinforce the stability of the support;

[0024] S3: After the top plate is covered, calibration is performed.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] By making each module separately, it can be made according to the type of fan, so as to meet the floating of fans of different types and sizes, improve the use efficiency, and increase the scope of application. By making each module separately, it can make modules that match each other according to the size of the fan, and can make modules of different sizes according to the size of the fan to adapt to fans of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the triangular floating structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the tire frame structure;

[0029] Figure 3 This is a single-piece production diagram of the column module of the present invention;

[0030] Figure 4 This is a diagram of the internal platform of the column module of the present invention;

[0031] Figure 5 It is the assembly diagram of the cylinder of the present invention;

[0032] Figure 6 This is a diagram of the heave tank bottom plate of the present invention;

[0033] Figure 7 This is a diagram of the reinforcement of the heave tank bottom plate according to the present invention;

[0034] Figure 8 This is a diagram of the cross inner bulkhead of the heave tank of the present invention;

[0035] Figure 9 This is a diagram of the curved outer side wall of the heave tank of the present invention;

[0036] Figure 10It is the top cover of the heave tank of the present invention;

[0037] Figure 11 Schematic diagram of the overall structure of the heave tank of the present invention;

[0038] Figure 12 This is the bottom plate diagram of the connecting beam of the present invention;

[0039] Figure 13 This is a diagram of the inner diaphragm sheet of the coupling beam of the present invention;

[0040] Figure 14 This is a diagram of the web plate of the coupling beam of the present invention;

[0041] Figure 15 This is a diagram of the supporting attachment of the coupling beam structure of the present invention;

[0042] Figure 16 This is a diagram of the side wall of the connecting beam of the present invention;

[0043] Figure 17 Schematic diagram of the connecting beam structure of the present invention.

[0044] Among them: 1. Heave tank module; 2. Connecting beam module; 3. Column module; 5. General column. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific examples, but the following examples are only preferred embodiments of the present invention, not all. Based on the examples in the embodiments, other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels. Example

[0046] Please refer to Figure 2 As shown, the present invention provides an offshore foundation floating body module, including a heave compartment module 1, a connecting beam module 2, a column module 3, a strut module and a general column 5.

[0047] The heave compartment module 1, the connecting beam module 2, the column module 3, the strut module and the general column 5 form a triangular floating body.

[0048] The general column 5 is fixedly set at the top of the column module 3, and the support rod module includes a first diagonal rod and a cross rod. The cross rod is fixedly connected to the column module 3 near the top, and the first diagonal rod is fixedly connected between the heave tank module 1 and the cross rod; the column module 3 is provided with multiple groups; and they are all arranged in a vertical state.

[0049] The triangular buoyant heave tank module 1 is divided into a main heave tank and two side heave tanks. The column module 3 comprises three vertical columns, the connecting beam module 2 comprises three lower buoys, six first diagonal bars and three cross bars are provided. A general column 5 is positioned at the top of the column on the top surface of the main heave tank.

[0050] A manufacturing process flow of an offshore foundation floating body module, the specific manufacturing process flow includes the following steps:

[0051] S1: Draw a three-dimensional diagram of the floating body by computer to obtain the precise dimensions of each part;

[0052] S2: Draw detailed drawings of each component part as the basis for drawing the cutting and nesting drawings and CNC compilation;

[0053] S3: The center of gravity position of each module and the overall size of the jacket. During layout, allowances for welding shrinkage compensation and machining allowances for manufacturing and installation shall be reserved according to process requirements.

[0054] S4: Module production, check the steel brand, specification, material and other related information, check the surface quality of the steel. When it is found that the steel is not straight, rust, paint and other dirt affect the quality of the material, it should be corrected and cleaned before cutting to ensure the flatness of the steel plate and the parts after cutting.

[0055] S5: Produce the heave compartment module 1, the connecting beam module 2, the column module 3, the strut module and the general column 5 respectively.

[0056] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The manufacturing process of the column module 3 is as follows:

[0057] S1: First, build a tire frame on a horizontal plate, and then calibrate the tire frame;

[0058] S2: Make a single piece of column module 3 and fix the cross bulkhead piece on the single piece wall, then splice and close the single piece to form a cylindrical shape. The whole process is completed on the tire frame.

[0059] Among them, the column module 3 is a steel cylinder structure, and the triangular floating bodies are cylindrical sections with diameters of 20 meters and 16 meters respectively. The cylinder is manufactured according to the platform frame arranged according to the final design structure. According to the "cross"-shaped bulkhead pieces generally arranged in the cylinder, the manufacturing process of the column module 3 should pay attention to the key shape dimensions of verticality control and overall roundness.

[0060] The triangular floating bodies are all upright column modules 3, and the column modules 3 are divided into three sections according to the structure and weight distribution.

[0061] The column module 3 is a single piece of cylindrical sheet, in which the cylindrical sheet is divided into 3 or 4 equal parts according to different pipe diameters, that is, a cylindrical segment is divided into arc sheets of equal size. The sheet is horizontally constructed with the outer side of the cylinder wall as the base surface and is manufactured on a special frame. The manufacturing process uses equipment such as buried arc automatic welding and automatic fillet welding machines to improve construction efficiency.

[0062] The cylindrical segments, cross bulkhead segments, and platform segments of column module 3 are manufactured separately. Column module 3 is constructed horizontally in sections using the column outer wall panels as the base surface. Before erecting the cradle, a cross ground sample line is marked on the ground. A horizontal reference line is scanned and marked on the angle steel using a laser. The height of each pile is measured according to the horizontal line. Piles of L100*100*10 are set in the vertical and horizontal directions, and a cradle template of 15*215 is set on top of the pile heads.

[0063] like Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 This is the manufacturing process of the vertical swing tank module 1. The manufacturing process steps of the vertical swing tank module 1 are as follows:

[0064] S1: First, prepare the top plate sheet, bottom plate sheet, curved outer wall sheet, straight outer wall sheet, cross inner bulkhead sheet, straight inner bulkhead sheet and arc-shaped bulkhead sheet;

[0065] S2: fabricate half of the heave tank module 1, make a flat jig on a horizontal surface, lay the bottom plate, install the cross inner bulkhead plate, install the arc inner bulkhead plate, install the arc outer wall plate, install the straight inner bulkhead plate, install the straight outer wall plate, and finally install the top plate. Then fabricate the other half of the heave tank module 1.

[0066] S3: Symmetrically connect the two halves of the heave tank module 1 and then weld them.

[0067] The heave plate is divided into two halves according to the structural form and finally assembled based on the weight and dimensions of the heave plate and the actual resource conditions.

[0068] The two ends of the heave plate are arc segments, and the arc segments are composed of a top plate sheet, a bottom plate sheet, an outer wall plate sheet, an inner bulkhead sheet and an arc-shaped bulkhead sheet.

[0069] The heave plate is manufactured in sections using an inverted manufacturing scheme. The ground sample line is marked according to the design drawings, and a flat frame is made on the ground. The bottom panel, i.e. the bottom plate sheet, is laid, and the cross inner bulkhead sheet is installed. The arc inner bulkhead sheet is installed, the arc outer wall sheet is installed, the straight inner bulkhead sheet is installed, the straight outer wall sheet is installed, and finally the top plate sheet is installed, and finally the panel sheet is installed, and the whole is welded.

[0070] like Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 and Figure 17 The manufacturing process of the connecting beam module 2 is as follows:

[0071] S1: First, prepare the top plate, bottom plate, inner bulkhead, cabin bulkhead, side wall, web and reinforcement ribs.

[0072] S2: Lay the bottom plate sheet on a horizontal surface, then lay and fix the reinforcement ribs on the top surface of the bottom plate sheet, fix multiple inner partition plate sheets on the reinforcement ribs, and fix the web plate sheets on both sides of the inner partition plate sheet, and the bottom end of the web plate sheet is fixed to the reinforcement ribs, then fix the cabin partition plate sheet, the cabin partition plate sheet is arranged between the reinforcement ribs and the web plate sheet, then fix the side wall sheet on the side wall of the cabin partition plate sheet, and then cover the top plate sheet on the top surface of the side wall sheet, and fix the bottom surface of the top plate sheet to the cabin partition plate sheet and the top surface of the inner wall partition plate sheet, wherein a structural support accessory is provided between the side wall sheets, and the structural support accessory is the cabin partition plate sheet, which is used to reinforce the stability of the support;

[0073] S3: After the top plate is covered, calibration is performed.

[0074] The connecting beam module 2 is composed of a top plate sheet, a bottom plate sheet, an inner partition plate sheet, a cabin partition plate sheet, a side wall sheet, a web plate sheet and a reinforcing rib structure.

[0075] Among them, the connecting beam module 2 is the lower floating body, and the end of the lower floating body is made with a joint trimming allowance for easy assembly. The lower floating body adopts a regular production plan and is pre-assembled in the workshop. The tire frame is made into a flat tire frame, and then the bottom plate sheet is laid, and then the fixed reinforcement ribs are laid on the top surface of the bottom plate sheet, and multiple inner partition sheets are fixed on the reinforcement ribs, and the web sheet is fixed on both sides of the inner partition sheet, and the bottom end of the web sheet is fixed to the reinforcement ribs, and then the cabin partition sheet is fixed, and the cabin partition sheet is set between the reinforcement ribs and the web sheet, and then the side wall sheet is fixed on the side wall of the cabin partition sheet, and then the top plate sheet is covered on the top surface of the side wall sheet, and the bottom surface of the top plate sheet is fixed to the cabin partition sheet and the top surface of the inner wall partition sheet, and then the top plate sheet is covered and corrected, wherein structural support accessories are provided between the side wall sheets to reinforce the stability of the support.

[0076] Through the separate production of each module, it can be produced according to the type of fan, so as to meet the floating of fans of different types and sizes, improve the use efficiency, and increase the scope of application. Through the separate production of each module, it is possible to produce modules that cooperate with each other according to the size of the fan, and to produce modules of different sizes according to the size of the fan to adapt to fans of different sizes.

[0077] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0078] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A process flow for manufacturing an offshore foundation floating body module, wherein the offshore foundation floating body module comprises a heave compartment module (1), a connecting beam module (2), a column module (3), a strut module and a general column (5), and is characterized in that: Producing a heave compartment module (1), a connecting beam module (2), a column module (3), a strut module, and a general column (5) respectively; The manufacturing process steps of the heave tank module (1) are as follows: S1: First, prepare the top plate sheet, bottom plate sheet, curved outer wall sheet, straight outer wall sheet, cross inner bulkhead sheet, straight inner bulkhead sheet and arc-shaped bulkhead sheet; S2: Make half of the heave tank module (1), make a flat frame on the horizontal ground, lay the bottom plate sheet, install the cross inner bulkhead sheet, install the arc inner bulkhead sheet, install the arc outer wall sheet, install the straight inner bulkhead sheet, install the straight outer wall sheet, and finally install the top plate sheet, and then make the other half of the heave tank module (1); S3: symmetrically dock the two halves of the heave tank module (1) and then weld them; The manufacturing process steps of the connecting beam module (2) are as follows: S1: First, prepare the top plate, bottom plate, inner bulkhead, cabin bulkhead, side wall, web and reinforcement ribs. S2: Lay the bottom plate sheet on a horizontal surface, then lay and fix the reinforcement ribs on the top surface of the bottom plate sheet, fix multiple inner partition plate sheets on the reinforcement ribs, and fix the web plate sheets on both sides of the inner partition plate sheet, and the bottom end of the web plate sheet is fixed to the reinforcement ribs, then fix the cabin partition plate sheet, the cabin partition plate sheet is arranged between the reinforcement ribs and the web plate sheet, then fix the side wall sheet on the side wall of the cabin partition plate sheet, and then cover the top plate sheet on the top surface of the side wall sheet, and fix the bottom surface of the top plate sheet to the cabin partition plate sheet and the top surface of the inner wall partition plate sheet, wherein a structural support accessory is provided between the side wall sheets, and the structural support accessory is the cabin partition plate sheet, which is used to reinforce the stability of the support; S3: After the top plate is covered, calibration is performed.

2. The manufacturing process of an offshore foundation floating body module according to claim 1 is characterized in that: The manufacturing process steps of the column module (3) are as follows: S1: First, build a tire frame on a horizontal plate, and then calibrate the tire frame; S2: Make a single piece of column module (3) and fix the cross bulkhead piece on the single piece wall, then splice and close the single piece to form a cylindrical shape. The whole process is completed on the tire frame.

3. The manufacturing process of an offshore foundation floating body module according to claim 1 is characterized in that: Before respectively manufacturing the heave compartment module (1), the connecting beam module (2), the column module (3), the strut module and the general column (5), the following steps are also included: S1: Draw a three-dimensional diagram of the floating body by computer to obtain the precise dimensions of each part; S2: Draw detailed drawings of each component part as the basis for drawing the cutting and nesting drawings and CNC compilation; S3: The center of gravity position of each module and the overall size of the jacket. During layout, allowances for welding shrinkage compensation and machining allowances for manufacturing and installation shall be reserved according to process requirements. S4: Module production, check the steel brand, specification, material related information, check the surface quality of the steel, when it is found that the steel is not straight, rust, paint and dirt affect the quality of the material, it should be corrected and cleaned before cutting to ensure the flatness of the steel plate and the parts after cutting.

4. The manufacturing process of an offshore foundation floating body module according to claim 1 is characterized in that: The heave compartment module (1), the connecting beam module (2), the column module (3), the strut module and the general column (5) form a triangular floating body.

5. The manufacturing process of an offshore foundation floating body module according to claim 4 is characterized in that: The general column (5) is fixedly arranged at the top of the column module (3); the support rod module includes a first diagonal rod and a cross rod; the cross rod is fixedly connected to the column module (3) near the top; the first diagonal rod is fixedly connected between the heave chamber module (1) and the cross rod; the column module (3) is provided with a plurality of groups; and all are arranged in a vertical state.

6. The manufacturing process of an offshore foundation floating body module according to claim 4 is characterized in that: The connecting beam module (2) is fixedly arranged between the heave chamber modules (1), and the column module (3) is fixedly arranged on the top surface of the heave chamber module (1).

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