Offshore photovoltaic platform lamination transportation tool and transportation method

Abstract

The invention discloses an offshore photovoltaic platform lamination transportation tool which comprises a tool fixing base assembly used for being fixed to a deck of a transport ship. The lamination transportation fixing support assembly is fixedly installed on the tool fixing base assembly; and the multiple sets of tool placing platform assemblies are arranged at intervals in the height direction of the laminated transportation fixing support assembly and used for placing and supporting the offshore photovoltaic platform in a laminated mode. A transportation method of the offshore photovoltaic platform laminated transportation tool comprises the following steps that S1, the tool fixing base assembly is arranged and installed; s2, hoisting, stacking and mounting the photovoltaic platform; and S3, shipping and sailing. The offshore photovoltaic platform lamination transportation tool and the transportation method are provided for overcoming existing defects, the structure is stable, the occupied space is small, and the ship transportation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of offshore photovoltaic platform transportation, specifically to a stacked transportation tooling and method for offshore photovoltaic platforms. Background Technology

[0002] Offshore photovoltaics (PV) is a novel approach to the utilization and development of marine energy resources. The main structure of an offshore PV system consists of a supporting foundation and an upper platform. Considering both the load-bearing capacity of the supporting structure and the overall stability of the steel truss, the larger the area of ​​the upper platform steel truss, the more PV modules can be installed, resulting in a larger capacity and a higher return on investment.

[0003] For the pile-foundation fixed offshore photovoltaic project, the photovoltaic platform has two structural forms: a truss photovoltaic platform and a grid-structure photovoltaic platform. The truss photovoltaic platform measures 75m × 36m, weighs approximately 120t, and has a designed pile foundation spacing of 23.90867m north-south and 39.2m east-west. The grid-structure platform also measures 75m × 36m, weighs approximately 120t, and has a designed pile foundation spacing of 15.554m north-south and 39m east-west.

[0004] Given the existing structure, each existing photovoltaic platform transport vessel needs to be equipped with two sets of dedicated fixing brackets, which raises three major issues: First, it occupies the effective usable area of ​​the transport vessel, reducing the utilization rate of transport space; second, it increases the load on the vessel, affecting the economy and safety of transport; and third, the use of different specifications is prone to occur during tooling switching, resulting in unstable platform fixation and construction risks.

[0005] Therefore, a stacked transportation tooling and transportation method for offshore photovoltaic platforms is proposed to address the above problems. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of existing methods by providing a stacked transport fixture and method for offshore photovoltaic platforms, which has a stable structure, occupies little space, and improves the efficiency of ship transportation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stacked transport fixture for an offshore photovoltaic platform, comprising: Tooling mounting base assembly for securing to the deck of a transport ship; The stacked transport fixing bracket assembly is installed and fixed on the tooling fixing base assembly; Multiple sets of tooling platform components are arranged at intervals along the height direction of the stacked transport and fixing bracket components to stack and support the offshore photovoltaic platform.

[0008] Preferably, the tooling fixing base assembly includes: The base frame is connected to the transport ship deck at one end via the deck web assembly, and extends to the outside of the transport ship deck at the other end, and is connected to the transport ship sidewall via the outboard support assembly. The space frame platform mounting base assembly is located on the inner end of the upper surface of the base frame; The truss platform mounting base assembly is located at the outer end of the upper surface of the base frame.

[0009] The base frame consists of a longitudinal main steel beam, four longitudinal second steel beams arranged on both sides of the longitudinal main steel beam, and six transverse steel beams arranged laterally. The deck web assembly includes: Multiple first transverse web plates are respectively connected between each of the transverse steel beams and the deck to achieve transverse steel beam reinforcement; The second transverse web plate is connected between each longitudinal second steel beam and the deck. Longitudinal web, connecting the longitudinal main steel beam and the deck; The outboard support assembly includes an outer support elbow plate, with its upper end connected to the longitudinal main steel beam and its lower end connected to the side wall of the transport ship. The side wall of the outer support elbow plate is connected to a diagonal support elbow plate, and the other end of the diagonal support elbow plate is connected to the longitudinal main steel beam. The space frame platform mounting base assembly includes: Four bottom elbow plates are respectively connected to the four right angles formed by the connection between the longitudinal second steel beam and the transverse steel beam; Four support elbows are respectively connected to the two perpendicularly intersecting longitudinal second steel beams and the transverse steel beams, and the four support elbows are arranged in a circle.

[0010] Preferably, the stacked transport fixing bracket assembly includes: The bottom support column is connected and fixed to the tooling fixing base assembly at its lower end; a first pin device is provided on the upper side wall; and multiple first steel steps are provided at equal intervals on the outer wall. The second-layer support column has a second insertion section at its lower end, which is used to insert into the upper end of the bottom support column and is fixed by the first pin device; the upper side wall is provided with a second pin device; and multiple second steel steps are provided at equal intervals on the outer wall. The third-layer support column has a third insertion section at its lower end, which is used to insert into the upper end of the second-layer support column and be fixed by the second pin device; the upper side wall is provided with a third pin device; and multiple third steel steps are provided at equal intervals on the outer wall. The top-level support column has a top-level insertion section at its lower end, which is used to insert into the upper end of the third-level support column and is fixed by the third pin device; multiple fourth steel steps are provided at equal intervals on the outer wall.

[0011] Preferably, the tooling placement platform assembly includes: The platform frame has a central support pipe for placing the photovoltaic platform. A locking component is provided on one side of the support tube to lock and fix the photovoltaic platform after it is placed in place.

[0012] The platform framework includes: Seven I-beams are connected between four fixed frame columns arranged in an isosceles trapezoidal shape, with a vertically arranged support tube connected in the middle; the upper end of the support tube is connected to a support point ring plate. The surface of the support ring plate is provided with a rubber pad to prevent damage from bumps; The locking component includes: Two first eye plates are connected to the side wall of the support tube. One of the first eye plates is rotatably connected to a tie rod by bolts, and the other end of the tie rod is connected to the other first eye plate by a pin. The inner side of the tie rod is connected to a clamping plate assembly. The card assembly includes: A vertical fixing plate is connected to the inside of the pull rod. The other side of the vertical fixing plate is connected to two horizontally arranged plates to engage the inner section of the photovoltaic platform.

[0013] Preferably, a personnel passage component is provided on the upper surface of the base frame, at the end near the outer side of the transport ship deck.

[0014] A method for transporting a multi-layered transport fixture for an offshore photovoltaic platform includes the following steps: S1, Arrangement and installation of tooling fixing base assembly; S2, hoisting and stacking installation of the photovoltaic platform; S3, outbound voyage.

[0015] S1 includes: S11, lay out and measure the installation positions of the four sets of tooling fixing base assemblies on the deck of the transport ship, so that the four sets of tooling fixing base assemblies are arranged in a square. S12, one end of the base frame is connected to the deck of the transport ship through the deck web assembly, and the other end extends to the outside of the transport ship deck and is connected to the side wall of the transport ship through the outboard support assembly; a connecting grid platform is arranged on the inner end of the upper surface of the base frame to install the base assembly, and a connecting truss platform is arranged on the outer end of the upper surface of the base frame to install the base assembly.

[0016] S2 includes: Installation of grid-supported photovoltaic platform by hoisting and stacking: S21, install the bottom support column to the space frame platform mounting base assembly, and then install a set of tooling support platform components on the bottom support column; S22, the crane lifts the first-layer grid photovoltaic platform, places the landing point of the first-layer grid photovoltaic platform into the support tube, and locks it with the locking component; S23, install the second layer of support columns to the top of the bottom layer of support columns, and install a set of tooling platform components on the second layer of support columns; S24, the crane lifts the second-layer grid photovoltaic platform, places the landing point of the second-layer grid photovoltaic platform into the support tube, and locks it with the locking component; S25, install the third layer of support column to the upper end of the second layer of support column, and install a set of tooling support platform components on the third layer of support column; S26, The crane lifts the third-layer grid photovoltaic platform, places the landing point of the third-layer grid photovoltaic platform into the support tube, and locks it with the locking component; S27, Install the top-level support column to the top of the third-level support column, and install a set of tooling platform components on the top-level support column; S28, the crane lifts the fourth-layer grid photovoltaic platform, places the landing point of the fourth-layer grid photovoltaic platform into the support tube, and locks it with the locking component.

[0017] S2 includes: Truss photovoltaic platform hoisting and stacking installation: S21, Install the bottom support column to the truss platform mounting base assembly, and then install a set of tooling support platform components on the bottom support column; S22, the crane lifts the first-layer truss photovoltaic platform, places the landing point of the first-layer truss photovoltaic platform into the support tube, and locks it with the locking component; S23, install the second layer of support columns to the top of the bottom layer of support columns, and install a set of tooling platform components on the second layer of support columns; S24, the crane lifts the second-layer truss photovoltaic platform, places the landing point of the second-layer truss photovoltaic platform into the support tube, and locks it with the locking component; S25, install the third layer of support column to the upper end of the second layer of support column, and install a set of tooling support platform components on the third layer of support column; S26, The crane lifts the third-layer truss photovoltaic platform, places the landing point of the third-layer truss photovoltaic platform into the support tube, and locks it with the locking component; S27, Install the top-level support column to the top of the third-level support column, and install a set of tooling platform components on the top-level support column; S28, the crane lifts the fourth-layer truss photovoltaic platform, places the landing point of the fourth-layer truss photovoltaic platform into the support tube, and locks it with the locking component.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the present invention provides a stacked transport tooling and transport method for marine photovoltaic platforms, by setting up a grid platform installation base group and a truss platform installation base group on the upper surface of the base frame respectively, which can be compatible with the transport of two different types of photovoltaic platforms, reducing the manufacturing cost of two sets of transport tooling adapted to different platforms that were originally required for a single ship, and eliminating the need for the replacement of the adapting tooling, reducing time consumption and improving the efficiency of ship transport.

[0019] By setting up a pluggable structure for the stacked transport fixing bracket assembly, and combining it with a support platform, a four-layer load-bearing structure can be formed, enabling the stacked transport of four photovoltaic platforms, significantly improving the ship's space utilization and single-ship transport capacity. The pluggable fixing frame design of the dedicated stacking transport tooling simplifies the tooling installation and dismantling process, effectively improving the efficiency of tooling assembly and dismantling as well as the efficiency of photovoltaic platform loading operations. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the arrangement of the stacked transport tooling for the offshore photovoltaic platform of the present invention; Figure 2 This is a schematic diagram of the installation of the stacked transport fixing bracket assembly of the present invention; Figure 3 This is a top view of the tooling fixing base assembly of the present invention; Figure 4 This is a side view of the tooling fixing base assembly of the present invention; Figure 5 This is a schematic diagram of the stacked transport fixing bracket assembly of the present invention; Figure 6 This is a schematic diagram of the tooling placement platform component of the present invention; Figure 7 This is a schematic diagram of the locking component of the present invention; Figure 8 This is a front view of the tooling fixing base assembly of the present invention; Figure 9 This is a schematic diagram of the transportation method for the stacked transportation tooling of the offshore photovoltaic platform according to the present invention; Figure 10 This is a schematic diagram of the hoisting of the first-layer grid photovoltaic platform of the present invention; Figure 11 This is a schematic diagram of the installation of the first-layer grid photovoltaic platform of the present invention; Figure 12 This is a side view of the first-layer grid photovoltaic platform of the present invention. Figure 13 This is a schematic diagram of the hoisting of the second-layer grid photovoltaic platform of the present invention; Figure 14 This is a schematic diagram of the installation of the second-layer grid photovoltaic platform of the present invention; Figure 15 This is a side view of the second-layer grid photovoltaic platform of the present invention. Figure 16 This is a schematic diagram of the installation of the third-layer grid photovoltaic platform of the present invention; Figure 17 This is a side view of the installation of the third-layer grid photovoltaic platform of the present invention; Figure 18 This is a schematic diagram of the hoisting of the fourth-layer grid photovoltaic platform of the present invention; Figure 19 This is a schematic diagram of the installation of the fourth-layer grid photovoltaic platform of the present invention; Figure 20 This is a side view of the fourth-layer grid photovoltaic platform of the present invention. Figure 21 This is a schematic diagram of the hoisting of the first-layer truss photovoltaic platform of the present invention; Figure 22 This is a schematic diagram of the installation of the first-layer truss photovoltaic platform of the present invention; Figure 23 This is a side view of the first-layer truss photovoltaic platform of the present invention. Figure 24 This is a schematic diagram of the hoisting of the second-layer truss photovoltaic platform of the present invention; Figure 25 This is a schematic diagram of the installation of the second-layer truss photovoltaic platform of the present invention; Figure 26 This is a side view of the second-layer truss photovoltaic platform of the present invention. Figure 27 This is a schematic diagram of the installation of the third-layer truss photovoltaic platform of the present invention; Figure 28 This is a side view of the installation of the third-layer truss photovoltaic platform of the present invention; Figure 29 This is a schematic diagram of the hoisting of the fourth-layer truss photovoltaic platform of the present invention; Figure 30 This is a schematic diagram of the installation of the fourth-layer truss photovoltaic platform of the present invention; Figure 31 This is a side view of the fourth-layer truss photovoltaic platform installation of the present invention.

[0021] In the diagram: 1. Tooling fixing base assembly; 2. Stacked transport fixing bracket assembly; 3. Tooling placement platform assembly; 101. Base frame; 102. Deck web assembly; 103. Outboard support assembly; 104. Space frame platform installation base assembly; 105. Truss platform installation base assembly; 201. Bottom support column; 202. Second layer support column; 203. Second insertion section; 204. Third layer support column; 205. Third insertion section; 206. Top layer support column; 207. Top layer insertion section; 301. Platform frame; 302. Placement support pipe; 303. Locking assembly. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1-8 As shown, a stacked transport fixture for an offshore photovoltaic platform includes a fixture fixing base assembly 1 for fixing to the deck of a transport ship; a stacked transport fixing bracket assembly 2 for installation and fixing on the fixture fixing base assembly 1; and multiple sets of fixture platform placement assemblies 3 arranged at intervals along the height direction of the stacked transport fixing bracket assembly 2 for stacking and supporting the offshore photovoltaic platform.

[0024] Specifically, the tooling fixing base assembly 1 includes a base frame 101, one end of which is connected to the transport ship deck via a deck web assembly 102, and the other end extends to the outside of the transport ship deck and is connected to the transport ship sidewall via an overboard support assembly 103; a space frame platform mounting base assembly 104 is located on the inner end of the upper surface of the base frame 101; and a truss platform mounting base assembly 105 is located on the outer end of the upper surface of the base frame 101. A personnel passage assembly 106 is provided on the upper surface of the base frame 101, near the outer end of the transport ship deck.

[0025] Specifically, the base frame 101 consists of a longitudinal main steel beam 1011, four longitudinal second steel beams 1012 arranged on both sides of the longitudinal main steel beam 1011, and six transverse steel beams 1013 arranged laterally. Specifically, the deck web assembly 102 includes multiple first transverse webs 1021, which are respectively connected between each transverse steel beam 1013 and the deck to reinforce the transverse steel beam 1013; second transverse webs 1022, which are respectively connected between each longitudinal second steel beam 1012 and the deck; and longitudinal webs 1023, which are connected between the longitudinal main steel beam 1011 and the deck. The external support assembly 103 includes an external support elbow plate 1031, which is connected to the longitudinal main steel beam 1011 at the upper end and to the side wall of the transport ship at the lower end. The side wall of the external support elbow plate 1031 is connected to a diagonal support elbow plate 1032, and the other end of the diagonal support elbow plate 1032 is connected to the longitudinal main steel beam 1011. Specifically, the space frame platform mounting base assembly 104 includes four bottom elbow plates 1041, which are respectively connected to the four right angles formed by the connection of the longitudinal second steel beam 1012 and the transverse steel beam 1013; and four support elbow plates 1042, which are respectively connected to the two vertically intersecting longitudinal second steel beams 1012 and transverse steel beams 1013, and the four support elbow plates 1042 are arranged in a circle.

[0026] Specifically, the grid platform mounting base group 104 and the truss platform mounting base group 105 are two sizes, respectively applicable to the two structural forms of truss photovoltaic platforms and grid photovoltaic platforms; the two sizes of mounting bases are integrated into a single base frame 101, reducing equipment investment and space occupation.

[0027] Specifically, the stacked transport fixing bracket assembly 2 includes a bottom support column 201, the lower end of which is connected and fixed to the tooling fixing base assembly 1; a first pin device 2011 is provided on the upper side wall; multiple first steel steps 2012 are provided at equal intervals on the outer wall; the lower end of the second layer support column 202 is provided with a second insertion section 203, which is used to insert into the upper end of the bottom support column 201 and is fixed by the first pin device 2011; a second pin device 2021 is provided on the upper side wall; multiple second steel steps 2012 are provided at equal intervals on the outer wall. 22; The lower end of the third-layer support column 204 is provided with a third insertion section 205, which is used to insert into the upper end of the second-layer support column 202 and is fixed by the second pin device 2021; the upper side wall is provided with a third pin device 2041; multiple third steel steps 2042 are provided at equal intervals on the outer wall; the lower end of the top-layer support column 206 is provided with a top-layer insertion section 207, which is used to insert into the upper end of the third-layer support column 204 and is fixed by the third pin device 2041; multiple fourth steel steps 2061 are provided at equal intervals on the outer wall.

[0028] Specifically, the first steel step 2012, the second steel step 2022, the third steel step 2042, and the fourth steel step 2061 facilitate personnel going up and down.

[0029] Specifically, the second plug-in section 203, the third plug-in section 205, and the top plug-in section 207 are provided to facilitate the connection between the main components.

[0030] Specifically, the tooling platform component 3 includes a platform frame 301, with a support tube 302 for placing the photovoltaic platform connected in the middle; and a locking component 303, which is set on one side of the support tube 302 for locking and fixing the photovoltaic platform after it is placed in place.

[0031] Specifically, the platform frame 301 includes seven I-beams 3011 connected between four fixed support columns arranged in an isosceles trapezoidal shape, with a vertically arranged support pipe 302 connected in the middle; the upper end of the support pipe 302 is connected to a support point ring plate 3021; ​​the surface of the support point ring plate 3021 is provided with a rubber pad 3022 to prevent damage from bumps; it can effectively prevent damage from bumps when the photovoltaic platform is placed, protect the integrity of the platform structure, and reduce the later maintenance cost.

[0032] Specifically, the locking assembly 303 includes: two first eye plates 3031, both of which are connected to the side wall of the support tube 302. One of the first eye plates 3031 is rotatably connected to the pull rod 3035 by bolts 3032, and the other end of the pull rod 3035 is connected to the other first eye plate 3031 by a pin 3036. The inner side of the pull rod 3035 is connected to a clamping plate assembly. The clamping plate assembly includes a clamping plate vertical fixing plate 3037, which is connected to the inner side of the pull rod 3035. The other side of the clamping plate vertical fixing plate 3037 is connected to two clamping plates 3038 arranged in the vertical direction for clamping the inner section of the photovoltaic platform.

[0033] Specifically, after the inner section of the photovoltaic platform is inserted into the support tube 302, the pull rod 3035 is rotated to the first eye plate 3031 and locked with the pin 3036, so that the clamp structure formed by the two clamping plates 3038 clamps the inner section flange of the photovoltaic platform and the support tube 302, so that the two are firmly fixed.

[0034] like Figure 9-31 As shown, a method for transporting a multi-layered transport fixture for an offshore photovoltaic platform includes the following steps: S1, Arrangement and installation of tooling fixing base assembly 1; S11, lay out and measure the installation positions of the four sets of tooling fixing base assemblies 1 on the deck of the transport ship, so that the four sets of tooling fixing base assemblies 1 are arranged in a square. Before construction, surveyors and technicians used a total station, ink line, and red marker paint to lay out the center line, positioning frame line, and welding control line of the base, based on the dimensions of the photovoltaic platform and the deck layout of the transport ship. The error of the laying out was strictly controlled within ±2mm to ensure that the positioning marks were clear, continuous, and without any breaks.

[0035] S12, one end of the base frame 101 is connected to the deck of the transport ship through the deck web assembly 102, and the other end extends to the outside of the transport ship deck and is connected to the side wall of the transport ship through the outboard support assembly 103; and a connecting grid platform is arranged at the inner end of the upper surface of the base frame 101 to install the base assembly 104, and a connecting truss platform is arranged at the outer end of the upper surface of the base frame 101 to install the base assembly 105.

[0036] Including deck pretreatment, the workers first thoroughly cleaned the deck installation area of ​​oil, rust, mud and debris. Within 50mm of the welding area, an angle grinder and rust remover were used to grind until a uniform metallic luster was achieved, with a rust removal grade of Sa2.5. After grinding, the contact surface was wiped with acetone to ensure that the area was dry, clean and free of oil residue.

[0037] Before installation, the base frame 101 was lifted and placed smoothly into the designed position by the crane operator and the dock crane. According to the parameters of the ship's beam arch and ridge arc, the operators selected steel shims of different thicknesses of 1mm, 2mm and 5mm to finely adjust the height of the base frame 101 to ensure that the top surface of the base meets the horizontal installation requirements.

[0038] Then, use a leveling calibration. Use a laser level to fully check the levelness of the top surface of the base frame 101 to ensure that the levelness deviation is ≤3mm / m and the height difference between adjacent support surfaces does not exceed 2mm. If the deviation exceeds the standard, add or remove shims in time to readjust until the accuracy requirements are met.

[0039] Finally, the base frame 101 is welded to the hull deck via the deck web assembly 102 by a certified marine welder using a symmetrical segmented skip welding method. The weld leg size meets the design requirements, and the welding process strictly controls deformation to prevent defects such as undercut, porosity, slag inclusion, and incomplete penetration.

[0040] Post-weld inspection: After welding is completed, the welding slag is removed in time and the weld is ground. 100% magnetic particle testing is carried out on key load-bearing welds such as the external support assembly 103 and the base frame 101. The test results meet the requirements of GB / T 26952-2011 standard. Any unqualified parts are immediately removed and re-welded. Only after passing the re-inspection can the next process be carried out.

[0041] S2, hoisting and stacking installation of the photovoltaic platform; Installation of grid-supported photovoltaic platform by hoisting and stacking: Before hoisting, the safety officer and the crane commander shall demarcate a warning area no less than three times the slewing radius of the boom, set up warning signs to prohibit unauthorized personnel from entering, and use an anemometer to monitor the on-site wind speed in real time. The operating wind speed shall be controlled at ≤12m / s. If the wind speed exceeds the standard, the operation shall be stopped immediately.

[0042] The sling inspection and installation: The slinger conducts a comprehensive inspection of the wire rope, shackles, slings, and lifting beams to ensure that the wire rope is free of broken wires, rust, and flattening. The slings are installed symmetrically according to the design lifting points, and the shackle threads are intact and properly locked.

[0043] During the trial lift, the crane operator lifts the grid photovoltaic platform 100-200mm off the ground according to the command instructions, brakes and pauses for 5 minutes to complete the trial lift. The key checks are the uniformity of the force on the lifting points, the absence of deformation of the platform structure, and the absence of abnormal operation of the crane. After confirming that all indicators are qualified, the formal lifting operation will be carried out.

[0044] S21, install the bottom support column 201 onto the space frame platform mounting base group 104, and then install a set of tooling platform assembly 3 on the bottom support column 201; S22, the crane lifts the first-layer grid photovoltaic platform, places the landing point of the first-layer grid photovoltaic platform into the support tube 302, and locks it with the locking component 303; After the first layer of the photovoltaic grid platform is installed and reinforced, technicians, quality inspectors and safety officers will conduct a joint inspection to confirm that the platform is not tilted or loose, the fixing frame is not deformed, and the pins and accessories are complete and locked. Only after the inspection is passed and signed off can the installation of the second layer of fixing frame be carried out.

[0045] S23, install the second layer support column 202 to the upper end of the bottom layer support column 201, and install a set of tooling support platform components 3 on the second layer support column 202; S24, the crane lifts the second-layer grid photovoltaic platform, places the landing point of the second-layer grid photovoltaic platform into the support tube 302, and locks it with the locking component 303; The second-layer grid photovoltaic platform strictly followed the first-layer hoisting process to complete the trial hoisting, translation, and low-speed placement operations. During the placement process, a safe distance of no less than 100mm was maintained between the second-layer platform and the fixed frame to avoid collision damage to the structure.

[0046] S25, install the third layer support column 204 to the upper end of the second layer support column 202, and install a set of tooling support platform assembly 3 on the third layer support column 204; S26, the crane lifts the third-layer grid photovoltaic platform, places the landing point of the third-layer grid photovoltaic platform into the support tube 302, and locks it with the locking component 303; After the third-layer grid photovoltaic platform passes the acceptance test, the alignment, insertion and pin locking of the third-layer plug-in fixed frame are completed with reference to the installation process of the second-layer grid photovoltaic platform. During the installation process, the coaxiality and overall verticality of the three-layer columns are checked, and the center deviation of the column is controlled to be ≤5mm and the cumulative verticality deviation is ≤15mm to ensure that the upper load is evenly distributed without eccentric load. S27, install the top support column 206 to the upper end of the third support column 204, and install a set of tooling support platform components 3 on the top support column 206; S28, the crane lifts the fourth-layer grid photovoltaic platform, places the landing point of the fourth-layer grid photovoltaic platform into the support pipe 302, and locks it with the locking component 303.

[0047] The fourth-layer grid photovoltaic platform adopts a low-speed, small-amplitude hoisting method. After the crane accurately connects to the plug-in point, it is slowly lowered into place. After the platform is in place, it is left to stand still for 5 minutes to confirm that there is no abnormal deformation or abnormal noise in the overall stacked structure before subsequent reinforcement work is carried out.

[0048] The entire structure was reinforced, with reinforcement personnel carrying out comprehensive reinforcement around the fourth-layer grid photovoltaic platform and adding diagonal windproof ropes at the top. This ensured that the four-layer stacked structure formed an integral rigid system, meeting the stability requirements for long-distance maritime transportation.

[0049] After all the grid photovoltaic platforms were assembled, the quality inspectors and installers conducted a full inspection from bottom to top, focusing on checking that all welds were free from cracks and deformation, that the pins and cotter pins were fully locked, that the reinforcing ropes were not loose, and that the anti-slip and limiting devices were effective. At the same time, they confirmed that there was no tilting, displacement, or local deformation of each platform.

[0050] For overall acceptance, the overall structural acceptance must ensure that the total verticality deviation of the stacked assembly is ≤20mm, there is no obvious shaking when the top platform is gently pushed manually, there is no relative displacement between layers, and the joints of each platform fit tightly without any gaps, meeting the safety requirements for maritime transportation.

[0051] Defect rectification: Looseness, welding defects and other problems found during the inspection process shall be rectified immediately. After the rectification is completed, a second re-inspection shall be carried out. Only after all the defects are qualified can the shipment preparation stage begin.

[0052] S2 includes: Truss photovoltaic platform hoisting and stacking installation: Before hoisting, the safety officer and the crane operator shall demarcate a warning area no less than three times the slewing radius of the boom, set up warning signs to prohibit unauthorized personnel from entering, and use an anemometer to monitor the wind speed on site in real time. The operating wind speed shall be controlled at ≤12m / s. If the wind speed exceeds the standard, the operation shall be stopped immediately.

[0053] The sling inspection and installation: The slinger conducts a comprehensive inspection of the wire rope, shackles, slings, and lifting beams to ensure that the wire rope is free of broken wires, rust, and flattening. The slings are installed symmetrically according to the design lifting points, and the shackle threads are intact and properly locked.

[0054] Trial lifting: The crane operator lifts the truss photovoltaic platform 100-200mm off the ground according to the command instructions, brakes and pauses for 5 minutes to complete the trial lifting. The key checks are the uniformity of the force on the lifting points, the absence of deformation of the platform structure, and the absence of abnormal operation of the crane. After confirming that all indicators are qualified, the formal lifting operation is carried out.

[0055] S21, install the bottom support column 201 onto the truss platform mounting base assembly 105, and then install a set of tooling platform assembly 3 on the bottom support column 201; S22, the crane lifts the first-layer truss photovoltaic platform, places the landing point of the first-layer truss photovoltaic platform into the support tube 302, and locks it with the locking component 303; After the first-floor photovoltaic platform is installed and reinforced, technicians, quality inspectors, and safety officers will conduct a joint inspection to confirm that the platform is not tilted or loose, the fixing frame is not deformed, and the pins and accessories are complete and locked. Only after the inspection is passed and the sign is signed to confirm that the second-floor fixing frame installation work can be carried out.

[0056] S23, install the second layer support column 202 to the upper end of the bottom layer support column 201, and install a set of tooling support platform components 3 on the second layer support column 202; S24, the crane lifts the second-layer truss photovoltaic platform, places the landing point of the second-layer truss photovoltaic platform into the support tube 302, and locks it with the locking component 303; The second-layer truss photovoltaic platform strictly followed the first-layer hoisting process to complete the trial hoisting, translation, and low-speed placement operations. During the placement process, a safe distance of no less than 100mm was maintained between the second-layer platform and the fixed frame to avoid collision damage to the structure.

[0057] S25, install the third layer support column 204 to the upper end of the second layer support column 202, and install a set of tooling support platform assembly 3 on the third layer support column 204; S26, the crane lifts the third-layer truss photovoltaic platform, places the landing point of the third-layer truss photovoltaic platform into the support tube 302, and locks it with the locking component 303; After the third-layer truss photovoltaic platform passes the acceptance test, the alignment, insertion and pin locking of the third-layer plug-in fixed frame are completed with reference to the installation process of the second-layer grid photovoltaic platform. During the installation process, the coaxiality and overall verticality of the three-layer columns are checked, and the center deviation of the columns is controlled to be ≤5mm and the cumulative verticality deviation is ≤15mm to ensure that the upper load is evenly distributed without eccentric load. S27, install the top support column 206 to the upper end of the third support column 204, and install a set of tooling support platform components 3 on the top support column 206; S28, the crane lifts the fourth-layer truss photovoltaic platform, places the landing point of the fourth-layer truss photovoltaic platform into the support tube 302, and locks it with the locking component 303.

[0058] The fourth-layer truss photovoltaic platform was installed using a low-speed, small-amplitude hoisting method. The crane was used to precisely connect the connection points and then slowly lower the platform into place. After the platform was in place, it was left to stand still for 5 minutes to confirm that there were no abnormal deformations or noises in the overall stacked structure before subsequent reinforcement work was carried out.

[0059] The entire structure was reinforced, with reinforcement personnel carrying out comprehensive reinforcement around the fourth-floor truss photovoltaic platform and adding diagonal windproof ropes at the top. This ensured that the four-layer stacked structure formed a rigid overall system, meeting the stability requirements for long-distance maritime transport.

[0060] After all the truss photovoltaic platforms were assembled, the quality inspectors and installers conducted a full inspection from bottom to top, focusing on checking that all welds were free from cracks and deformation, that the pins and cotter pins were fully locked, that the reinforcing ropes were not loose, and that the anti-slip and limiting devices were effective. They also confirmed that each platform was free from tilting, displacement, and local deformation.

[0061] For overall acceptance, the overall structural acceptance must ensure that the total verticality deviation of the stacked assembly is ≤20mm, there is no obvious shaking when the top platform is gently pushed manually, there is no relative displacement between layers, and the joints of each platform fit tightly without any gaps, meeting the safety requirements for maritime transportation.

[0062] Defect rectification: Looseness, welding defects and other problems found during the inspection process shall be rectified immediately. After the rectification is completed, a second re-inspection shall be carried out. Only after all the defects are qualified can the shipment preparation stage begin.

[0063] S3, outbound voyage.

[0064] Shipping preparations, Before shipment, the captain and bosun adjust the ballast water according to the transportation requirements to control the ship's heel within ≤±1° and trim within ≤±0.5°, in accordance with the requirement of the 2008 International Integrity Stability Code that the anti-heeling moment should not be less than 1.5 times the overturning moment.

[0065] A full ship safety inspection was conducted, with the crew performing a safety check of the entire vessel to confirm that the tooling, platforms, and hull were reliably connected, that there were no abnormalities in the external supports and mooring points, and that debris and tools on the deck were cleared to ensure unobstructed access for operations.

[0066] Weather and route confirmation: The dispatcher and captain jointly confirm the navigation operation window, ensuring that the wind speed is ≤12m / s and the wave height is ≤1.5m during transportation, planning a safe navigation route and avoiding severe weather and dangerous sea areas, and completing the report to the maritime authorities.

[0067] After completing the documentation and approval process, the ship finally compiles a complete set of documents, including tooling installation records, welding flaw detection reports, reinforcement inspection records, ship stability calculation sheets, and weather notices, and completes the shipment approval procedures, thus making the ship ready for formal shipment.

[0068] This offshore photovoltaic platform stacked transport tooling and method, by setting up a grid platform installation base group 104 and a truss platform installation base group 105 on the upper surface of the base frame 101, can be compatible with the transport of two different photovoltaic platforms. This reduces the manufacturing cost of two sets of transport tooling adapted to different platforms that would otherwise need to be made for a single ship. At the same time, it eliminates the need for tooling replacement, reduces time consumption, and improves ship transport efficiency.

[0069] By setting up a pluggable structure for the stacked transport fixing bracket assembly 2, and combining it with a support platform, a four-layer load-bearing structure can be formed, enabling the stacked transport of four photovoltaic platforms, significantly improving the ship's space utilization and single-ship transport capacity. The pluggable fixing frame design of the dedicated stacked transport tooling simplifies the tooling installation and dismantling process, effectively improving the efficiency of tooling assembly and dismantling as well as the efficiency of photovoltaic platform loading operations.

[0070] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stacked transport tooling for an offshore photovoltaic platform, characterized in that, include: Tooling fixing base assembly (1) for fixing on the deck of a transport ship; The stacked transport fixed support assembly (2) is installed and fixed on the tooling fixed base assembly (1); Multiple sets of tooling platform components (3) are arranged at intervals along the height direction of the stacked transport fixed support components (2) to stack and support the offshore photovoltaic platform.

2. The stacked transport fixture for offshore photovoltaic platforms according to claim 1, characterized in that, The tooling fixing base assembly (1) includes: The base frame (101) is connected to the transport ship deck at one end via the deck web assembly (102), and extends to the outside of the transport ship deck at the other end, and is connected to the transport ship sidewall via the outboard support assembly (103). The space frame platform mounting base assembly (104) is located on the inner end of the upper surface of the base frame (101); The truss platform mounting base assembly (105) is located at the outer end of the upper surface of the base frame (101); The base frame (101) consists of a longitudinal main steel beam (1011), four longitudinal second steel beams (1012) arranged on both sides of the longitudinal main steel beam (1011), and six transverse steel beams (1013) arranged laterally. The deck web assembly (102) includes: Multiple first transverse web plates (1021) are respectively connected between each of the transverse steel beams (1013) and the deck to reinforce the transverse steel beams (1013); The second transverse web (1022) is connected between each longitudinal second steel beam (1012) and the deck; The longitudinal web (1023) connects the longitudinal main steel beam (1011) to the deck. The outboard support assembly (103) includes an outer support elbow plate (1031), the upper end of which is connected to the longitudinal main steel beam (1011), and the lower end of which is connected to the side wall of the transport ship. The side wall of the outer support elbow plate (1031) is connected to a diagonal support elbow plate (1032), and the other end of the diagonal support elbow plate (1032) is connected to the longitudinal main steel beam (1011). The space frame platform mounting base assembly (104) includes: Four bottom elbow plates (1041) are respectively connected to the four right angles formed by the connection of the longitudinal second steel beam (1012) and the transverse steel beam (1013); Four support elbows (1042) are respectively connected to two vertically intersecting longitudinal second steel beams (1012) and transverse steel beams (1013), and the four support elbows (1042) are arranged in a circle.

3. The stacked transport fixture for offshore photovoltaic platforms according to claim 2, characterized in that, The stacked transport fixing bracket assembly (2) includes: The bottom support column (201) is connected and fixed to the tooling fixing base assembly (1) at its lower end; a first pin device (2011) is provided on the upper side wall; and multiple first steel steps (2012) are provided at equal intervals on the outer wall. The second-layer support column (202) has a second insertion section (203) at its lower end, which is used to insert into the upper end of the bottom support column (201) and be fixed by the first pin device (2011); the upper side wall is provided with a second pin device (2021); and multiple second steel steps (2022) are provided at equal intervals on the outer wall. The third layer support column (204) has a third insertion section (205) at its lower end, which is used to insert into the upper end of the second layer support column (202) and fix it through the second pin device (2021); the upper side wall is provided with a third pin device (2041); and multiple third steel steps (2042) are provided at equal intervals on the outer wall. The top support column (206) has a top insertion section (207) at its lower end, which is used to insert into the upper end of the third support column (204) and fix it through the third pin device (2041); multiple fourth steel steps (2061) are provided at equal intervals on the outer wall.

4. The stacked transport fixture for offshore photovoltaic platforms according to claim 1, characterized in that, The tooling placement platform component (3) includes: The platform frame (301) has a centrally connected support pipe (302) for placing the photovoltaic platform. A locking component (303) is provided on one side of the support tube (302) for locking and fixing the photovoltaic platform after it is placed in place; The platform framework (301) includes: Seven I-beams (3011) are connected between four fixed frame columns arranged in an isosceles trapezoidal shape, and the middle part is connected to a vertically arranged support pipe (302); the upper end of the support pipe (302) is connected to a support point ring plate (3021). The surface of the support ring plate (3021) is provided with a rubber pad (3022) to prevent damage from bumps. The locking component (303) includes: Two first eye plates (3031) are connected to the side wall of the support tube (302). One of the first eye plates (3031) is rotatably connected to a tie rod (3035) by a bolt (3032). The other end of the tie rod (3035) is connected to the other first eye plate (3031) by a pin (3036). The inner side of the tie rod (3035) is connected to a clamping plate assembly. The card assembly includes: A vertical fixing plate (3037) is connected to the inside of the pull rod (3035). The other side of the vertical fixing plate (3037) is connected to two horizontally arranged plates (3038) for engaging the inner section of the photovoltaic platform.

5. The stacked transport fixture for offshore photovoltaic platforms according to claim 2, characterized in that, A personnel passage assembly (106) is provided on the upper surface of the base frame (101) near the outer side of the transport ship deck.

6. A method for transporting the multi-layered transport fixture for an offshore photovoltaic platform as described in claim 1, characterized in that, Includes the following steps: S1, Arrangement and installation of tooling fixed base assembly (1); S2, hoisting and stacking installation of the photovoltaic platform; S3, outbound voyage.

7. The transportation method of the stacked transport fixture for offshore photovoltaic platforms according to claim 6, characterized in that, S1 includes: S11, lay out and measure the installation positions of the four sets of tooling fixing base assemblies (1) on the deck of the transport ship so that the four sets of tooling fixing base assemblies (1) are arranged in a square. S12, one end of the base frame (101) is connected to the deck of the transport ship through the deck web assembly (102), and the other end extends to the outside of the transport ship deck and is connected to the side wall of the transport ship through the outboard support assembly (103); and a connecting grid platform mounting base assembly (104) is arranged on the inner end of the upper surface of the base frame (101), and a connecting truss platform mounting base assembly (105) is arranged on the outer end of the upper surface of the base frame (101).

8. The transportation method of the stacked transport fixture for offshore photovoltaic platforms according to claim 7, characterized in that, S2 includes: Installation of grid-supported photovoltaic platform by hoisting and stacking: S21, install the bottom support column (201) onto the space frame platform mounting base assembly (104), and then install a set of tooling platform assembly (3) on the bottom support column (201). S22, the crane lifts the first-layer grid photovoltaic platform, places the landing point of the first-layer grid photovoltaic platform into the support tube (302), and locks it by the locking component (303); S23, install the second layer support column (202) to the upper end of the bottom layer support column (201), and install a set of tooling support platform components (3) on the second layer support column (202). S24, the crane lifts the second-layer grid photovoltaic platform, places the landing point of the second-layer grid photovoltaic platform into the support tube (302), and locks it by the locking component (303); S25, install the third layer support column (204) to the upper end of the second layer support column (202), and install a set of tooling support platform components (3) on the third layer support column (204); S26, the crane lifts the third-layer grid photovoltaic platform, places the landing point of the third-layer grid photovoltaic platform into the support tube (302), and locks it by the locking component (303); S27, install the top support column (206) to the upper end of the third support column (204), and install a set of tooling support platform components (3) on the top support column (206). S28, the crane lifts the fourth-layer grid photovoltaic platform, places the landing point of the fourth-layer grid photovoltaic platform into the support tube (302), and locks it by the locking component (303).

9. The transportation method of the stacked transport fixture for offshore photovoltaic platforms according to claim 7, characterized in that, S2 includes: Truss photovoltaic platform hoisting and stacking installation: S21, install the bottom support column (201) onto the truss platform mounting base assembly (105), and then install a set of tooling platform assembly (3) on the bottom support column (201). S22, the crane lifts the first-layer truss photovoltaic platform, places the landing point of the first-layer truss photovoltaic platform into the support tube (302), and locks it by the locking component (303); S23, install the second layer support column (202) to the upper end of the bottom layer support column (201), and install a set of tooling support platform components (3) on the second layer support column (202). S24, the crane lifts the second-layer truss photovoltaic platform, places the landing point of the second-layer truss photovoltaic platform into the support tube (302), and locks it by the locking component (303); S25, install the third layer support column (204) to the upper end of the second layer support column (202), and install a set of tooling support platform components (3) on the third layer support column (204); S26, the crane lifts the third-layer truss photovoltaic platform, places the landing point of the third-layer truss photovoltaic platform into the support tube (302), and locks it by the locking component (303); S27, install the top support column (206) to the upper end of the third support column (204), and install a set of tooling support platform components (3) on the top support column (206). S28, the crane lifts the fourth-layer truss photovoltaic platform, places the landing point of the fourth-layer truss photovoltaic platform into the support tube (302), and locks it by the locking component (303).

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