Lightweight high-strength offshore photovoltaic floating body device based on foam aluminum composite structure

The lightweight, high-strength marine photovoltaic floating device with a foamed aluminum composite structure uses adjustment and wetting brushing components to remove salt stains, solving the problems of reduced light transmittance and corrosion caused by salt stains, thereby improving power generation efficiency and extending the life of the solar cells.

CN120646170BActive Publication Date: 2025-11-25ANHUI NEOFOUND TECH
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Patent Information

Application Number
CN202511090760.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-11-25
Estimated Expiration
2045-08-05

AI Technical Summary

Technical Problem

Salt crystallization on the surface of offshore photovoltaic panels leads to reduced light transmittance, corrosion, and decreased power generation efficiency, and also incurs high cleaning and maintenance costs.

Method used

The lightweight and high-strength marine photovoltaic floating device adopts a foamed aluminum composite structure. The angle of the photovoltaic panel is adjusted by adjusting the components. Combined with the wetting and brushing components, fresh water detergent is used to wet and brush away salt stains.

Benefits of technology

It effectively removes salt stains, improves power generation efficiency, reduces cleaning and maintenance costs, extends cell life, and prevents corrosion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a light-weight high-strength offshore photovoltaic floating body device based on a foamed aluminum composite structure and belongs to the technical field of floating body devices. The light-weight high-strength offshore photovoltaic floating body device based on the foamed aluminum composite structure comprises a floating body support, a light-weight floating body is fixedly connected to the corner position of the floating body support, a rotating rod one is fixedly connected to the upper position of the floating body support, a photovoltaic support is rotationally connected to the rotating rod one, a photovoltaic panel is fixedly connected in the photovoltaic support, and a gear is fixedly connected to one side of the photovoltaic support. The offshore photovoltaic floating body device, through the adjusting assembly, adjusts the photovoltaic panel to a horizontal state, then the wetting assembly washes the salted soil on the surface of the photovoltaic panel, removes some salted soil with weak bonding strength, and wet and softens the remaining salted soil with strong bonding strength; after the salted soil is wet and softened, the brushing assembly drives the roller brush to brush the salted soil on the surface of the photovoltaic panel, so that the salted soil removal effect on the surface of the photovoltaic panel is better.
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Description

Technical Field

[0001] This invention relates to the field of floating body device technology, and more specifically, to a lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure. Background Technology

[0002] Offshore photovoltaic floating devices are a key component of offshore photovoltaic power generation systems. Their function is to support photovoltaic modules to float on the sea surface and maintain stability, thereby achieving efficient conversion of solar energy. However, in the marine environment, salt spray deposition is a common pollution problem faced by photovoltaic panels. This pollution is generated by the migration and adsorption of salt particles in the atmosphere, which is significantly harmful to photovoltaic panels.

[0003] Salt crystals can block and scatter sunlight, reducing light transmittance. If not cleaned for a long time, power generation will decrease significantly. At the same time, the chloride ions and other components in the salt can corrode the aluminum alloy frame and junction box metal parts, causing pitting corrosion and poor contact. They can also corrode the sealant and backplate, damaging the structural seal. In addition, uneven salt deposition can easily cause hot spot effects, accelerate cell aging, shorten the life of the battery, and increase cleaning and maintenance costs.

[0004] Therefore, the treatment of salt stains on the surface of photovoltaic panels is crucial. To this end, this application proposes a lightweight and high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure, which aims to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure, in order to solve the problems mentioned in the background art above:

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure includes a floating body support, a lightweight floating body fixedly connected to the corner position of the floating body support, a rotating rod fixedly connected to the upper position of the floating body support, a photovoltaic support rotatably connected to the rotating rod, a photovoltaic panel fixedly connected inside the photovoltaic support, and a gear fixedly connected to one side of the photovoltaic support.

[0008] An adjustment assembly is movably installed at the middle position of the floating body support. The adjustment assembly includes a toothed plate, which is movably connected to a gear.

[0009] A wetting component is also movably installed at the middle position of the floating support. The wetting component includes a drain pipe and wets the photovoltaic panels on the photovoltaic support.

[0010] A scrubbing component is movably installed on the floating support above the adjustment component. The scrubbing component scrubs the wetted photovoltaic panel and can drive the drain pipe to move to fully wet the photovoltaic panel.

[0011] By adopting the above technical solution, the adjustment component adjusts several photovoltaic panels to a horizontal state, and then the brushing component pushes the drain pipe to move on the photovoltaic panels to discharge detergent such as fresh water to wet and soften the salt stains on the photovoltaic panels. Then the brushing component drives the roller brush to remove the wetted and softened salt stains, making it easier to remove the salt stains on the surface of the photovoltaic panels.

[0012] Preferably, a sliding sleeve one is fixedly connected to one side of the photovoltaic bracket, and a sliding sleeve two is fixedly connected to the other side of the photovoltaic bracket. The gear is fixedly connected to the sliding sleeve one, and the sliding sleeve one and the sliding sleeve two are rotatably connected to the rotating rod one.

[0013] By adopting the above technical solution, the photovoltaic support can rotate on the rotating rod.

[0014] Preferably, a mounting base is provided on one side of the float support, and the adjustment component also includes a first limiting plate and a second limiting plate. The first limiting plate is fixedly connected to the front and rear ends of the toothed plate, and the second limiting plate is fixedly connected to one side of the toothed plate. The second limiting plate is located inside the gear.

[0015] By adopting the above technical solution, the gear plate and the gear cannot be separated.

[0016] Preferably, the adjustment assembly further includes a slide rod, a mounting plate, a connecting frame, and a hydraulic cylinder. The number of toothed plates is two. The slide rod is fixedly connected to one end of the two toothed plates, the connecting frame is fixedly connected to the other end of the two toothed plates, the mounting plate is fixedly connected to the float support, the slide rod is slidably connected to the mounting plate, the hydraulic cylinder is fixedly connected to the mounting base, and the output shaft of the hydraulic cylinder is fixedly connected to the connecting frame.

[0017] By adopting the above technical solution, the hydraulic cylinder can drive the toothed plate to reciprocate.

[0018] Preferably, the brushing assembly includes a lead screw, a first support beam, a second support beam, a stepper motor, and a first bearing. The first and second support beams are fixedly connected to the float support. The two ends of the lead screw are rotatably connected to the first and second support beams respectively through the first bearing. The stepper motor is fixedly connected to the second support beam, and the output shaft of the stepper motor is fixedly connected to one end of the lead screw.

[0019] By adopting the above technical solution, the stepper motor can easily drive the lead screw to rotate.

[0020] Preferably, a limiting groove is provided in the middle of the float support, and the brushing assembly also includes a slide, a screw hole, a limiting strip, a swing frame, a second rotating rod, and a second bearing. The screw hole is provided on the slide, the limiting strip is fixedly connected to the slide, the second rotating rod is fixedly connected to the center of the swing frame, the second rotating rod is rotatably connected to the slide through the second bearing, and the lower part of the slide is slidably connected in the limiting groove.

[0021] By adopting the above technical solution, the swing frame can be easily swung left and right on the carriage.

[0022] Preferably, the brushing assembly further includes a cylindrical rod, a roller brush, and a limiting head. The cylindrical rod is fixedly connected to one side of the swing frame, the roller brush is rotatably connected to the cylindrical rod, and the roller brush brushes the photovoltaic panel. The limiting head is fixedly connected to the swing frame and located on the other side of the cylindrical rod. The limiting head is located on the side of the slide and below the limiting strip.

[0023] By adopting the above technical solution, the roller brush moves on the photovoltaic panel, which facilitates the removal of salt stains.

[0024] Preferably, a mounting bracket is fixedly connected to the bottom surface of the float support. The wetting component further includes a detergent tank, an inlet, a sealing cap, a water pump, a suction pipe, and an outlet pipe. The detergent tank is fixedly connected to the mounting bracket, the inlet is fixedly connected to the detergent tank, the sealing cap is threaded to the inlet, the water pump is fixedly connected to the detergent tank, the water pump inlet is inserted into the detergent tank through the suction pipe, and the lower end of the suction pipe extends into the lower part of the detergent tank. The water pump outlet is fixedly connected to an outlet pipe.

[0025] By adopting the above technical solution, it is convenient to add detergent to the detergent tank through the addition port.

[0026] Preferably, the wetting assembly further includes a tee, a hose, a fork connector, and a drain outlet. One end of the tee is connected to the water outlet pipe, and the other two ends of the tee are connected to the hose. The fork connector is fixedly connected to the hose and is connected to the drain pipe. The drain outlet is located on the drain pipe, and the drain pipe is fixedly connected to one side of the swing frame.

[0027] By adopting the above technical solution, detergent can enter the drain pipe through the hose and fork connector.

[0028] Preferably, the lightweight float is provided with a foamed aluminum core layer, a fiber-reinforced composite layer and an anti-corrosion coating from the inside to the outside. The fiber-reinforced composite layer is fixedly connected to the foamed aluminum core layer, the anti-corrosion coating is fixedly connected to the fiber-reinforced composite layer, and a connecting rod is fixedly connected to the corner position of the float support. The lightweight float is fixedly connected to the connecting rod.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1) When using this marine photovoltaic floating device, the angle of the photovoltaic panel can be adjusted by adjusting the components, so that the photovoltaic panel can tilt forward or backward, thereby better receiving sunlight and improving the efficiency of power rotation. The photovoltaic panel can also be adjusted to a horizontal state, which is convenient for subsequent drainage pipe flushing and roller brush cleaning.

[0031] 2) When this marine photovoltaic floating device is in use, after the photovoltaic panels are adjusted to a horizontal state, the detergent in the detergent tank can be pumped out by the water pump and then discharged through the drain pipe and drain outlet to wash and wet the salt stains on the photovoltaic panels. This makes it easier to wash away some salt stains with low bonding strength, while the salt stains with stronger bonding are easier to wet and soften, reducing the bonding strength with the surface of the photovoltaic panels.

[0032] 3) When this offshore photovoltaic floating device is in use, after the wetting component wets the photovoltaic panel, the extraction of detergent is stopped. After the detergent in the drain pipe is slowly discharged through the drain outlet, the weight of the drain pipe decreases. At this time, under the action of gravity, the roller brush swings downward, and the limiting head falls to the side of the slide. Then, the roller brush is driven to move, so that the bristles on the roller brush scrub the salt stains on the photovoltaic panel, thereby removing the wetted and softened salt stains. This makes it easier to remove the salt stains on the photovoltaic panel more thoroughly and avoids affecting photovoltaic power generation. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram showing the connection between the photovoltaic support and the floating support of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0036] Figure 4 This is a schematic diagram showing the disassembled photovoltaic support structure of the present invention;

[0037] Figure 5 This is a schematic diagram of the connection structure between the wetting component and the scrubbing component of the present invention;

[0038] Figure 6 This is a schematic diagram of the structure of the swing frame of the present invention;

[0039] Figure 7 This is a schematic diagram of the structure of the wetting component of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of the carriage of the present invention;

[0041] Figure 9 This is a cross-sectional schematic diagram of the lightweight float of the present invention.

[0042] Explanation of the numbers in the diagram: 1. Floating body support; 101. Connecting rod one; 102. Restricting groove; 103. Mounting base; 104. Mounting frame; 105. Rotating rod one; 2. Lightweight floating body; 201. Foamed aluminum core layer; 202. Fiber reinforced composite layer; 203. Anti-corrosion coating; 3. Photovoltaic support; 301. Sliding sleeve one; 302. Sliding sleeve two; 303. Gear; 4. Photovoltaic panel; 5. Adjustment component; 501. Gear plate; 502. Restricting plate one; 503. Restricting plate two; 504. Sliding rod; 505. Mounting plate; 506. Connecting frame; 507. Hydraulic cylinder; 6. Wetting component; 60 1. Detergent tank; 602. Adding port; 603. Sealing cap; 604. Water pump; 605. Pump pipe; 606. Outlet pipe; 607. T-joint; 608. Hose; 609. Fork connector; 610. Drain pipe; 611. Drain outlet; 7. Scrubbing assembly; 701. Lead screw; 702. Support beam one; 703. Support beam two; 704. Stepper motor; 705. Bearing one; 706. Slide; 7061. Screw hole; 7062. Restriction strip; 707. Swing frame; 708. Rotating rod two; 709. Bearing two; 710. Cylinder rod; 711. Roller brush; 712. Restriction head. Detailed Implementation

[0043] Example 1, please refer to Figures 1 to 4 A lightweight and high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure includes a floating body support 1, a lightweight floating body 2 fixedly connected to the corner position of the floating body support 1, a rotating rod 105 fixedly connected to the upper position of the floating body support 1, a photovoltaic support 3 rotatably connected to the rotating rod 105, the photovoltaic support 3 rotating and adjusting around the rotating rod 105, a photovoltaic panel 4 fixedly connected inside the photovoltaic support 3, and a gear 303 fixedly connected to one side of the photovoltaic support 3, the gear 303 driving the photovoltaic support 3 to rotate;

[0044] An adjustment component 5 is movably installed at the middle position of the floating support 1. The adjustment component 5 includes a toothed plate 501, which is movably connected to a gear 303. The toothed plate 501 moves back and forth, causing the gear 303 to rotate forward or backward, so that the photovoltaic support 3 drives the photovoltaic panel 4 to tilt forward or backward.

[0045] A sliding sleeve 301 is fixedly connected to one side of the photovoltaic bracket 3, and a sliding sleeve 302 is fixedly connected to the other side of the photovoltaic bracket 3. The sliding sleeve 301 and the sliding sleeve 302 are provided with rotating holes and rotate on the rotating rod 105 through the rotating holes. The gear 303 is fixedly connected to the sliding sleeve 301. The sliding sleeve 301 and the sliding sleeve 302 are rotatably connected to the rotating rod 105. The gear 303 drives the sliding sleeve 302 to rotate, and the sliding sleeve 302 drives the photovoltaic bracket 3 to rotate.

[0046] A mounting base 103 is provided on one side of the float support 1. The adjustment assembly 5 also includes a first limiting plate 502 and a second limiting plate 503. The first limiting plate 502 is fixedly connected to the front and rear ends of the toothed plate 501, so that the gear 303 cannot be disengaged from the front and rear sides of the toothed plate 501. The second limiting plate 503 is fixedly connected to one side of the toothed plate 501. The second limiting plate 503 is located inside the gear 303. The second limiting plate 503 and the gear 303 block each other, so that the gear 303 cannot be disengaged from the toothed plate 501.

[0047] The adjustment assembly 5 also includes a slide rod 504, a mounting plate 505, a connecting frame 506, and a hydraulic cylinder 507. There are two toothed plates 501 arranged in parallel to each other. The slide rod 504 is fixedly connected to one end of the two toothed plates 501, and the connecting frame 506 is fixedly connected to the other end of the two toothed plates 501. Both ends of the connecting frame 506 are fixedly connected to the toothed plates 501. The mounting plate 505 is fixedly connected to the float support 1, and the slide rod 504 is slidably connected to the mounting plate 505. The hydraulic cylinder 507 is fixedly connected inside the mounting base 103, and the output shaft of the hydraulic cylinder 507 is fixedly connected to the connecting frame 506. The output shaft of the hydraulic cylinder 507 is fixedly connected to the middle position of the connecting frame 506.

[0048] The steps of using this invention are as follows: When using this marine photovoltaic floating device, the photovoltaic panel 4 is fixedly connected to the photovoltaic support 3. The hydraulic cylinder 507 is started, causing the output shaft to push the connecting frame 506 to move, which in turn pushes the toothed plate 501 to move. The toothed plate 501 is rotatably connected to the gear 303, causing the gear 303 to drive the sliding sleeve 302 to rotate, which in turn drives the photovoltaic support 3 to rotate. The photovoltaic support 3 rotates on the rotating rod 105 through the sliding sleeve 302 and the sliding sleeve 301, making it easy for the photovoltaic support 3 to tilt forward or backward. For example, when the floating support 1 is set in the east-west direction, when the sun rises in the east, the photovoltaic support 3 and the photovoltaic panel 4 are tilted forward to correspond to the position of the sun. When the sun moves to the west, the photovoltaic support 3 and the photovoltaic panel 4 are tilted backward, so that the photovoltaic panel 4 can better receive sunlight and improve the efficiency of photovoltaic power generation.

[0049] Example 2, please refer to Figures 1 to 8The difference from the basic embodiment 1 is that a wetting component 6 is also movably installed in the middle of the floating support 1. The wetting component 6 includes a drain pipe 610. The wetting component 6 wets the photovoltaic panel 4 on the photovoltaic support 3, and the drain pipe 610 discharges detergent to rinse and wet the salt stains on the photovoltaic panel 4.

[0050] A scrubbing assembly 7 is movably installed on the floating support 1 above the adjusting assembly 5. The scrubbing assembly 7 scrubs the wetted photovoltaic panel 4 and can drive the drain pipe 610 to move and fully wet the photovoltaic panel 4. The movement of the drain pipe 610 makes it easier for the liquid discharged from the drain pipe 610 to fully rinse and wet the photovoltaic panel 4.

[0051] The scrubbing assembly 7 includes a lead screw 701, a first support beam 702, a second support beam 703, a stepper motor 704, and a first bearing 705. The first support beam 702 and the second support beam 703 are fixedly connected to the float support 1 and are fixedly connected to both sides of the float support 1. The two ends of the lead screw 701 are rotatably connected to the first support beam 702 and the second support beam 703 respectively through the first bearing 705. The stepper motor 704 is fixedly connected to the second support beam 703, and the output shaft of the stepper motor 704 is fixedly connected to one end of the lead screw 701, so that the stepper motor 704 can easily drive the lead screw 701 to rotate.

[0052] A limiting groove 102 is provided in the middle of the float support 1. The brushing assembly 7 also includes a slide 706, a screw hole 7061, a limiting strip 7062, a swing frame 707, a second rotating rod 708, and a second bearing 709. The screw hole 7061 is provided on the slide 706, and the slide 706 rotates on the lead screw 701 through the screw hole 7061. The limiting strip 7062 is fixedly connected to the slide 706. The second rotating rod 708 is fixedly connected to the center of the swing frame 707. The second rotating rod 708 is rotatably connected to the slide 706 through the second bearing 709, and the lower part of the slide 706 is slidably connected in the limiting groove 102, so that the swing frame 707 swings left and right on the side of the slide 706. The lower end of the slide 706 is inserted into the limiting groove 102, so that the slide 706 cannot rotate, and the slide 706 moves along the lead screw 701.

[0053] The brushing assembly 7 also includes a cylinder rod 710, a roller brush 711, and a limiting head 712. The cylinder rod 710 is fixedly connected to one side of the swing frame 707. The roller brush 711 is rotatably connected to the cylinder rod 710. The side of the roller brush 711 is covered with bristles. The roller brush 711 brushes the photovoltaic panel 4. The limiting head 712 is fixedly connected to the swing frame 707 and located on the other side of the cylinder rod 710. The limiting head 712 is located on the side of the slide 706 and below the limiting strip 7062. The limiting head 712 contacts the slide 706 downwards to stop downward rotation. The limiting head 712 rotates upwards to contact the limiting strip 7062 to stop upward rotation.

[0054] A mounting bracket 104 is fixedly connected to the bottom surface of the float support 1. The wetting component 6 also includes a detergent tank 601, an inlet 602, a sealing cap 603, a water pump 604, a suction pipe 605, and an outlet pipe 606. The detergent tank 601 is fixedly connected to the mounting bracket 104 and is filled with detergent, such as fresh water. The inlet 602 is fixedly connected to the detergent tank 601, and the sealing cap 603 is threaded onto the inlet 602. To facilitate the addition of detergent to the detergent tank 601, a sealing cap 603 seals the addition port 602. A water pump 604 is fixedly connected to the detergent tank 601. The water inlet of the water pump 604 is inserted into the detergent tank 601 through a water suction pipe 605, with the lower end of the water suction pipe 605 extending into the lower part of the detergent tank 601. The water outlet of the water pump 604 is fixedly connected to a water outlet pipe 606, making it easy for the water pump 604 to extract the detergent from the detergent tank 601 and pass it into the water outlet pipe 606.

[0055] The wetting assembly 6 also includes a tee 607, a hose 608, a fork connector 609, and a drain outlet 611. One end of the tee 607 is connected to the outlet pipe 606, and the other two ends of the tee 607 are connected to the hose 608. The fork connector 609 is fixedly connected to the hose 608 and is connected to the drain pipe 610. The drain outlet 611 is located on the drain pipe 610, which is fixedly connected to one side of the swing frame 707. The drain outlet 611 discharges the liquid in the drain pipe 610.

[0056] The steps of using this invention are as follows: In this marine photovoltaic floating device, the water pump 604 is started, and the water pump 604 draws out the liquid in the detergent tank 601 and discharges it into the drain pipe 610 through the outlet pipe 606, tee 607, hose 608 and fork pipe 609. The drain pipe 610 discharges through the drain outlet 611. As the liquid enters the drain pipe 610, the weight of the drain pipe 610 increases. At this time, the overall weight of the drain pipe 610 is greater than the weight of the roller brush 711 and the cylinder rod 710, so that the swing frame 707 rotates on the swing frame 707 through the second rotating rod 708 and the second bearing 709. The limiting head 712 contacts the limiting strip 7062 upward.

[0057] Stepper motor 704 drives lead screw 701 to rotate, slide 706 moves along lead screw 701, so that slide 706 drives swing frame 707 and drain pipe 610 on it to move synchronously. Drain pipe 610 and roller brush 711 are located on one side of photovoltaic bracket 3. When photovoltaic bracket 3 and photovoltaic panel 4 are adjusted to a horizontal state, drain pipe 610 is moved from one side of photovoltaic panel 4 to the other side to rinse the salt stains on photovoltaic panel 4, so that some salt stains with weak bonding strength are easily removed by liquid, and the remaining salt stains with strong bonding strength are easily wetted and softened.

[0058] When the drain pipe 610 moves to the other side, the water pump 604 stops drawing detergent from the detergent tank 601 and stops the screw 701 from rotating, allowing sufficient time for the detergent on the horizontal photovoltaic panel 4 to wet and soften the salt stains. At this time, as the liquid in the drain pipe 610 is discharged, the weight of the drain pipe 610 decreases, and the weight of the roller brush 711 and the cylinder rod 710 is greater than the weight of the drain pipe 610, causing the swing frame 707 to rotate in the opposite direction, the roller brush 711 to rotate downward, and the limiting head 712 to contact the slide 706 downward, causing the roller brush 711 to stop rotating downward.

[0059] Then, the stepper motor 704 rotates the lead screw 701 in the reverse direction, causing the slide 706 to move in the reverse direction, which drives the roller brush 711 to move on the photovoltaic panel 4. The bristles on the roller brush 711 brush the photovoltaic panel 4, making it easier to remove the wetted and softened salt stains, so that the salt stains on the photovoltaic panel 4 are removed more thoroughly, and the salt stains are prevented from affecting the power generation of the photovoltaic panel 4.

[0060] Example 3, please refer to Figure 1 and Figure 9The difference from embodiment 2 is that the lightweight float 2 is provided with a foamed aluminum core layer 201, a fiber-reinforced composite layer 202 and an anti-corrosion coating 203 from the inside to the outside. The fiber-reinforced composite layer 202 is fixedly connected to the foamed aluminum core layer 201, and the anti-corrosion coating 203 is fixedly connected to the fiber-reinforced composite layer 202. A connecting rod 101 is fixedly connected to the corner position of the float support 1, and the lightweight float 2 is fixedly connected to the connecting rod 101.

[0061] The aluminum foam core layer 201 has a density of 0.3–0.6 g / cm³ and a porosity of 70%–85%. The fiber-reinforced composite layer 202 is made of carbon fiber / glass fiber reinforced epoxy resin, with a thickness of 1–2 mm and a flexural modulus ≥20 GPa. The aluminum foam core layer 201 is filled with phase change material (PCM), with a phase change temperature of 25–35℃, used for temperature control of photovoltaic modules. The anti-corrosion coating 203 is a micro-arc oxidation ceramic layer or a polyurethane-nano SiO2 composite material, with a thickness of 50–100 μm. An aluminum-based micro-arc oxidation transition layer (5–10 μm thick) is added between the fiber-reinforced composite layer 202 and the aluminum foam core layer 201 to improve the interfacial bonding strength by >50%. After the lightweight float 2 is scrapped, the aluminum foam core layer 201 can be recycled by electrolytic separation (recovery rate >95%). A vacuum infusion process is used to infuse T700 carbon fiber / epoxy resin (60:40) into the core layer. A fiber-reinforced composite layer 202 is formed by coating the surface of the aluminum foam core layer 201 with a vol% (w / v) of polyurethane-SiO2 nano-coating (80 μm thick), and then cured at 80°C for 2 hours to form an anti-corrosion coating 203. This lightweight float 2 shows no corrosion after 2000 hours of salt spray testing and has a fatigue life >10 hours under wave load. 7 The loop continues.

[0062] The key performance indicators of the lightweight float 2 in this application compared with traditional floats in terms of density, compressive strength, and 25-year weight loss rate are as follows:

[0063]

[0064] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure, comprising a floating body support (1), characterized in that: A lightweight float (2) is fixedly connected to the corner position of the float support (1), a rotating rod (105) is fixedly connected to the upper part of the float support (1), a photovoltaic support (3) is rotatably connected to the rotating rod (105), a photovoltaic panel (4) is fixedly connected inside the photovoltaic support (3), and a gear (303) is fixedly connected to one side of the photovoltaic support (3). An adjustment component (5) is movably installed at the middle position of the floating support (1). The adjustment component (5) includes a toothed plate (501), which is movably connected to a gear (303). A wetting component (6) is also movably installed in the middle of the floating support (1). The wetting component (6) includes a drain pipe (610). The wetting component (6) wets the photovoltaic panels (4) on the photovoltaic support (3). A brushing component (7) is movably installed on the floating support (1) above the adjusting component (5). The brushing component (7) brushes the wetted photovoltaic panel (4) and can drive the drain pipe (610) to move to fully wet the photovoltaic panel (4). The lightweight float (2) is provided with a foamed aluminum core layer (201), a fiber-reinforced composite layer (202) and an anti-corrosion coating (203) from the inside to the outside. The fiber-reinforced composite layer (202) is fixedly connected to the foamed aluminum core layer (201), and the anti-corrosion coating (203) is fixedly connected to the fiber-reinforced composite layer (202). A connecting rod (101) is fixedly connected to the corner position of the float support (1), and the lightweight float (2) is fixedly connected to the connecting rod (101).

2. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 1, characterized in that: The photovoltaic bracket (3) is fixedly connected to a sliding sleeve one (301) on one side and a sliding sleeve two (302) on the other side. The gear (303) is fixedly connected to the sliding sleeve one (301). The sliding sleeve one (301) and the sliding sleeve two (302) are rotatably connected to the rotating rod one (105).

3. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 2, characterized in that: The floating support (1) has a mounting base (103) on one side. The adjustment component (5) also includes a first limiting plate (502) and a second limiting plate (503). The first limiting plate (502) is fixedly connected to the front and rear ends of the toothed plate (501). The second limiting plate (503) is fixedly connected to one side of the toothed plate (501). The second limiting plate (503) is located inside the gear (303).

4. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 3, characterized in that: The adjustment assembly (5) also includes a slide rod (504), a mounting plate (505), a connecting frame (506), and a hydraulic cylinder (507). There are two toothed plates (501). The slide rod (504) is fixedly connected to one end of the two toothed plates (501). The connecting frame (506) is fixedly connected to the other end of the two toothed plates (501). The mounting plate (505) is fixedly connected to the float support (1). The slide rod (504) is slidably connected to the mounting plate (505). The hydraulic cylinder (507) is fixedly connected inside the mounting base (103), and the output shaft of the hydraulic cylinder (507) is fixedly connected to the connecting frame (506).

5. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 1, characterized in that: The brushing assembly (7) includes a lead screw (701), a first support beam (702), a second support beam (703), a stepper motor (704), and a first bearing (705). The first support beam (702) and the second support beam (703) are fixedly connected to the float support (1). The two ends of the lead screw (701) are rotatably connected to the first support beam (702) and the second support beam (703) respectively through the first bearing (705). The stepper motor (704) is fixedly connected to the second support beam (703), and the output shaft of the stepper motor (704) is fixedly connected to one end of the lead screw (701).

6. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 5, characterized in that: The floating support (1) has a limiting groove (102) in the middle. The brushing assembly (7) also includes a slide (706), a screw hole (7061), a limiting strip (7062), a swing frame (707), a second rotating rod (708), and a second bearing (709). The screw hole (7061) is opened on the slide (706). The limiting strip (7062) is fixedly connected to the slide (706). The second rotating rod (708) is fixedly connected to the center of the swing frame (707). The second rotating rod (708) is rotatably connected to the slide (706) through the second bearing (709), and the lower part of the slide (706) is slidably connected in the limiting groove (102).

7. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 6, characterized in that: The brushing assembly (7) also includes a cylinder rod (710), a roller brush (711), and a limiting head (712). The cylinder rod (710) is fixedly connected to one side of the swing frame (707). The roller brush (711) is rotatably connected to the cylinder rod (710). The roller brush (711) brushes the photovoltaic panel (4). The limiting head (712) is fixedly connected to the swing frame (707) and located on the other side of the cylinder rod (710). The limiting head (712) is located on the side of the slide (706) and below the limiting strip (7062).

8. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 7, characterized in that: The bottom surface of the float support (1) is fixedly connected to the mounting bracket (104). The wetting component (6) also includes a detergent tank (601), an inlet (602), a sealing cap (603), a water pump (604), a water suction pipe (605), and a water outlet pipe (606). The detergent tank (601) is fixedly connected to the mounting bracket (104). The inlet (602) is fixedly connected to the detergent tank (601). The sealing cap (603) is threadedly connected to the inlet (602). The water pump (604) is fixedly connected to the detergent tank (601). The inlet of the water pump (604) is inserted into the detergent tank (601) through the water suction pipe (605), and the lower end of the water suction pipe (605) extends into the lower part of the detergent tank (601). The outlet of the water pump (604) is fixedly connected to the water outlet pipe (606).

9. The lightweight, high-strength marine photovoltaic floating body device based on a foamed aluminum composite structure according to claim 8, characterized in that: The wetting assembly (6) also includes a tee (607), a hose (608), a fork connector (609), and a drain outlet (611). One end of the tee (607) is connected to the water outlet pipe (606), and the other two ends of the tee (607) are connected to the hose (608). The fork connector (609) is fixedly connected to the hose (608), and the fork connector (609) is connected to the drain pipe (610). The drain outlet (611) is opened on the drain pipe (610), and the drain pipe (610) is fixedly connected to one side of the swing frame (707).

Citation Information

Patent Citations

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