Marine solar photovoltaic power station

Abstract

The utility model provides a solar photovoltaic power station for a ship, which comprises a ship body, stepped hatch coamings are symmetrically fixed at the top of a main deck of the ship body and positioned on two sides of a hatch, a plurality of steps are arranged on the stepped hatch coamings, and a plurality of groups of light hatch covers are supported at the tops of the steps through limiting roller mechanisms in a rolling fit manner; the multiple sets of light hatch covers are arranged in an overlapped storage mode. The top of each light hatch cover is fully provided with solar power generation panels in a full-area mode. All the light hatch covers cover the upper space of the whole cargo hold in a lap joint mode after being completely unfolded, and power is generated through the solar power generation panel to provide electric energy for the ship. When the ship needs to load or unload, all the light hatch covers are dragged to the front end or the rear end of the ship or the length range of the single light hatch covers symmetrically arranged at the front end and the rear end of the ship, so that the cargo hatch of the ship is fully opened, and ship cargo loading and unloading are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of marine solar power generation, in particular to a marine solar photovoltaic power station. BACKGROUND

[0002] The construction of a solar power station requires a large solar panel layout area. Large-scale solar power stations have been built on land, such as deserts and barren mountains, and on the sea. As a small, medium, or large marine or waterborne equipment that can move, a ship cannot be loaded with solar energy or other clean energy from land via a cable.

[0003] Currently, there are ships with solar panels mounted on the top of a roll-on / roll-off ship. However, this type of ship can only be used for ships with fixed roofs. As one of the types of ships, a cargo ship must have a cargo hold to load cargo. The cargo hold must be loaded and unloaded, and a fixed roof cannot be installed to mount a fixed solar panel. At this time, it is necessary to consider the application of solar energy by receiving sunlight from above the cargo hold. Therefore, a device that can be removed during loading and unloading of cargo and quickly installed with a solar photovoltaic panel when not loading or unloading cargo is needed. In addition, another important factor that a cargo ship needs to consider is the loading capacity, which is an important indicator for a shipping company to achieve sustainable development. If a solar panel is installed, the weight of the ship will increase to some extent, thereby reducing the carrying capacity of the ship. Therefore, it is necessary to solve the contradiction between lightweight and increased carrying capacity of the device.

[0004] Based on this, the applicant disclosed a marine solar power station and an operating method in the prior application 2024118222522 and a marine solar power station in 2024230586459. In this application, the power station is provided with a left and right symmetrical arrangement of a high cantilever deck. The cantilever deck is provided with a structure of multiple tracks to support and walk a lightweight hatch cover loaded with a solar photovoltaic panel, thereby realizing the loading of a marine solar power generation. This structure is a high cantilever deck, which is limited by the height of the loading and unloading wharf. It is only suitable for container wharfs, bulkhead wharfs, and other wharfs that are not limited by height. However, due to the height limitation, the lightweight hatch cover of the high cantilever deck of the marine solar power station is limited. Moreover, the guide rails of the marine solar power station with the application number 2024118222522 are installed on the cantilever deck and have a large number. When the ship is loading and unloading cargo, the scattered cargo is difficult to clean due to the obstruction of the tracks.

[0005] In addition, when the existing hatch cover is opened or closed, all the hatch covers need to be overlapped in one direction at the bow or stern. The opening process is relatively time-consuming. Utility model content

[0006] In order to solve the problem that the light hatch cover and the solar photovoltaic power generation panel of the marine solar photovoltaic power station are not arranged on the high-elevated overhanging deck, the utility model provides a marine solar photovoltaic power station, the power station is arranged with the multi-stage ladder type hatch coaming symmetrically on both sides of the hatch on the main deck, the top edge of the multi-stage ladder is used as the plane track of the light hatch cover walking roller, the plane is not actually arranged with the track, and the guide structure is that the left and right side guide rollers for contacting the ladder type hatch coaming are arranged on the structure of the hatch side wall and the walking roller, so that when the light solar photovoltaic power assembly hatch cover rolls longitudinally on the top edge of the ladder type hatch coaming, the side wall on both sides of the hatch cover contacts the left and right side guide rollers of the roller, the guiding effect is realized, the whole light solar photovoltaic power assembly hatch cover can stably roll longitudinally in the whole cargo hold range, the multiple hatch covers can be overlapped in the length range of one hatch cover, the ship cargo hatch can be opened or closed, and the normal loading and unloading operation state of the ship can be realized.

[0007] When the ship needs to load or unload, the light hatch cover is pulled to the length range of one hatch cover at any one end of the front end and the rear end of the ship, so that the cargo hatch is basically fully opened, and the shore or other loading and unloading mode crane can realize the loading and unloading of the ship cargo; when the ship cargo loading and unloading are completed, the multiple hatch covers overlapped in the length range of one hatch cover are pulled to the hatch position to be covered, and the hatch cover is distributed on the whole cargo hatch; the solar panels on the hatch cover can directly see the sunlight, the connection of the power generation system is realized, and clean solar power can supply power to all electrical equipment.

[0008] In order to realize the above technical features, the utility model aims at realizing the following: a marine solar photovoltaic power station, comprising a ship body, a ladder type hatch coaming is symmetrically fixed on the top of the main deck of the ship body and located on both sides of the hatch, a plurality of steps are arranged on the ladder type hatch coaming, a plurality of groups of light hatch covers are supported on the top of the steps through the rolling cooperation of a limiting roller mechanism, the plurality of groups of light hatch covers are arranged in an overlapping storage mode, the top of all the light hatch covers is respectively and fully covered with solar power panels, after all the light hatch covers are unfolded, the upper space of the whole cargo hold is covered through the lap joint mode, and the solar power panels generate power to provide the ship with electric energy, when the ship needs to load or unload, all the light hatch covers are pulled to the length range of one light hatch cover arranged symmetrically at the front end or the rear end or the front and rear ends of the ship, so that the cargo hatch of the ship is fully opened, and the loading and unloading of the ship cargo is realized.

[0009] Preferably, the top of the driving cabin of the ship body is paved with a driving cabin solar power generation panel, the top of the bow top deck of the ship body is paved with a bow top solar power generation panel, and the top of the stern top deck of the ship body is paved with a stern top solar power generation panel.

[0010] Preferably, all the light hatch covers are divided into two groups, and the two groups are symmetrically arranged on the top of the stepped hatch coaming; when the hatch is opened, the two groups of light hatch covers are respectively moved towards the front and rear ends of the ship; and the two groups of light hatch covers are of the same number.

[0011] Preferably, the single light hatch cover comprises a hatch cover framework, a strong transverse beam and a strong longitudinal beam are arranged between the hatch cover frameworks, vertical frameworks are arranged at the bottom of the two sides of the hatch cover framework, and a limiting roller mechanism is fitted at the bottom end of the vertical framework; a water baffle is arranged at the top end of the hatch cover framework and at the overlapping position of the adjacent light hatch covers; and an inclined reinforcing rod is arranged between the vertical frameworks.

[0012] Preferably, a thin steel plate for corrosion and weather resistance is arranged on the outer surface of the hatch cover framework and the vertical framework;

[0013] A gap is arranged between the adjacent light hatch covers of the adjacent layers;

[0014] An eye plate for hooking a traction shackle is arranged on the outer wall of the vertical framework at the end;

[0015] A flexible rubber plate is arranged on the outer wall of the water baffle to block the gap between the adjacent light hatch covers and realize weather sealing.

[0016] Preferably, the limiting roller mechanism comprises a base, a plurality of vertical shaft plates are arranged at the bottom end of the horizontal plate of the base, a roller shaft arranged horizontally is arranged between the vertical shaft plates, an open pin hole is arranged at the end position of the roller shaft, a positioning sleeve and a roller bearing are sleeved on the roller shaft, a spacing sleeve is arranged between the roller bearing and the vertical shaft plate, and the roller bearing is supported on the top end of the step; a plurality of horizontal shaft plates are fixed on the inner wall of the vertical plate of the base, a guide roller shaft arranged vertically is arranged on the horizontal shaft plate, a guide roller is sleeved on the guide roller shaft, and the guide roller is in contact with the outer side wall of the step.

[0017] Preferably, a movable connecting device for combined connection between the adjacent light hatch covers is arranged, and is used for temporary connection when the light hatch cover is opened or closed;

[0018] The movable connecting device comprises a pin shaft sleeve fixed on the outer light hatch cover, and a threaded sleeve fixed on the inner light hatch cover, an internal thread is arranged in the threaded sleeve, a threaded connecting shaft is arranged between the pin shaft sleeve and the threaded sleeve, a hexagonal head is arranged at the outer end of the threaded connecting shaft, a threaded column and a tapered end are arranged at the inner end of the threaded connecting shaft, and the threaded column is in threaded cooperation with the internal thread.

[0019] Preferably, it also includes a power unit for opening or closing the lightweight hatch cover;

[0020] The power unit adopts a winch traction mechanism;

[0021] The winch traction mechanism includes winches installed on the top of the main deck and located at the four corners of the hatch. The winches are connected to eye plates on the outer wall of the lightweight hatch cover via matching traction chains and shackles. It also includes guide sprockets and steering sprockets for guiding and turning the traction chains.

[0022] Preferably, the length of the lightweight hatch cover is determined by dividing it into even numbers according to the total length of the ship's cargo hold. After determining the length of each lightweight hatch cover, it is adjusted accordingly based on the length and width of the solar panels. The adjustment range should be such that the solar panels are fully covered on the lightweight hatch cover, leaving an appropriate distance from the edge without wasting the area on the lightweight hatch cover.

[0023] The present invention has the following beneficial effects:

[0024] 1. This utility model power station directly sets up symmetrically arranged multi-level stepped hatch coamings on both sides of the hatch opening on the main deck. The top edge of the multi-level steps serves as the planar track for the lightweight hatch cover traveling rollers. This planar track is not actually set up; its guiding structure is to add a port and starboard guide roller for contact with the stepped hatch coaming on the hatch sidewall and traveling roller structure. In this way, when the lightweight solar photovoltaic power generation module hatch cover rolls longitudinally along the top edge of the stepped hatch coaming, the sidewalls on both sides of the hatch cover contact the port and starboard guide rollers of the rollers, realizing the guiding function. This allows the entire lightweight solar photovoltaic power generation module hatch cover to roll smoothly longitudinally along the entire cargo hold. Multiple hatch covers can be overlapped within the length of a single hatch cover, allowing the ship's cargo hatch to be opened or closed, enabling normal loading and unloading operations.

[0025] 2. This utility model power station uses multiple lightweight hatch covers arranged in a rolling, overlapping manner. The hatch covers are fully covered with solar panels. When a ship needs to load or unload cargo, the lightweight hatch covers are towed to the length of a single hatch cover at either the bow or stern of the ship. This allows the cargo hatches to be almost fully opened, enabling shore-based or other loading / unloading cranes to lift and unload the cargo. After the cargo loading or unloading is completed, the multiple hatch cover groups, which are overlapping within the length of a single hatch cover, are towed until they reach the hatches to be covered. The hatch covers are then distributed over all the cargo hatches. The solar panels on the hatch covers are exposed to direct sunlight and connected to various parts of the power generation system, providing clean solar power to all electrical equipment.

[0026] 3. The above-mentioned size structure ensures that multiple lightweight hatch covers can be stacked sequentially for easy storage, thereby reducing the area occupied by a single lightweight hatch cover and increasing the coverage area.

[0027] 4. The above-mentioned movable connection device enhances the convenience of connection. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 Front view of this utility model.

[0030] Figure 2 Plan view of this utility model.

[0031] Figure 3 Cross-sectional view of this utility model's single-piece lightweight hatch cover.

[0032] Figure 4 This utility model shows a cross-sectional view of multiple hatch covers overlapping within the length of a single hatch cover.

[0033] Figure 5 This utility model features a stepped hatch coaming (which also serves as a track).

[0034] Figure 6 This utility model shows the arrangement of solar photovoltaic panels on the hatch cover.

[0035] Figure 7 Top view of the lightweight hatch cover of this utility model.

[0036] Figure 8 This utility model Figure 7 AA view.

[0037] Figure 9 This utility model Figure 7 View from direction B in the middle.

[0038] Figure 10 This utility model Figure 8 CC view.

[0039] Figure 11 General drawing of the lightweight hatch cover limiting roller mechanism of this utility model.

[0040] Figure 12 Side view of the base of this utility model.

[0041] Figure 13 This utility model Figure 11 DD view in the middle.

[0042] Figure 14 This utility model Figure 11EE view.

[0043] Figure 15 This utility model has a base structure diagram.

[0044] Figure 16 This utility model has a roller shaft diagram.

[0045] Figure 17 This utility model relates to a lightweight hatch cover guide roller.

[0046] Figure 18 This utility model relates to a lightweight hatch cover guide roller shaft diagram.

[0047] Figure 19 General drawing of the movable connecting device of this utility model.

[0048] Figure 20 The main body of this utility model is a lightweight hatch cover movable connection device.

[0049] Figure 21 This utility model relates to a lightweight hatch cover with a movable threaded connection shaft.

[0050] Figure 22 Schematic diagram of the movable connection device for the lightweight hatch cover of this utility model.

[0051] Figure 23 This utility model is illustrated in the diagram of the closed state of the eight lightweight hatch covers.

[0052] Figure 24 This utility model presents a schematic diagram of the lightweight hatch cover opening operation process.

[0053] Figure 25 This utility model presents a schematic diagram of the lightweight hatch cover closing operation process.

[0054] In the diagram: 1. Lightweight hatch cover 1; 2. Lightweight hatch cover 2; 3. Lightweight hatch cover 3; 4. Lightweight hatch cover 4; 5. Lightweight hatch cover 5; 6. Lightweight hatch cover 6; 7. Lightweight hatch cover 7; 8. Lightweight hatch cover 8; hull; 9. bridge; 10. bridge solar panel; 11. stern solar panel; 12. main deck; 13. solar panel; 14. bow solar panel; 15. bow canopy deck; 16. stepped hatch coaming; 17. step; 18. limiting roller mechanism; 19. hatch cover gap; 20. movable connection device; 21. winch; 22. traction chain; 23. eye plate; 24. guide sprocket; 25. steering opening sprocket; 26. cargo hold; 27.

[0055] Hatch cover frame 101, strong crossbeam 102, vertical frame 103, diagonal reinforcing bar 104, water baffle 105, strong longitudinal beam 106;

[0056] Base 1901, roller shaft 1902, roller bearing 1903, cotter pin hole 1904, guide roller 1905, guide roller shaft 1906, vertical shaft plate 1907, positioning sleeve 1908, horizontal shaft plate 1909, spacer sleeve 1910;

[0057] Pin sleeve 2101, threaded connecting shaft 2102, threaded sleeve 2103, internal thread 2104, threaded post 2105, tapered end 2106, hexagonal head 2107. Detailed Implementation

[0058] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0059] Example 1:

[0060] See Figures 1-25 A marine solar photovoltaic power station includes a hull 9. A stepped hatch coaming 17 is symmetrically fixed to the top of the main deck 13 of the hull 9 and on both sides of the hatch. Multiple steps 18 are provided on the stepped hatch coaming 17. The top of each step 18 is supported by multiple sets of lightweight hatch covers via a limiting roller mechanism 19. The multiple sets of lightweight hatch covers are arranged in an overlapping and stowed manner. Each lightweight hatch cover is fully covered with solar panels 14. After being fully unfolded, all lightweight hatch covers overlap to cover the upper space of the entire cargo hold 27, generating electricity for the ship through the solar panels 14. When the ship needs to load or unload cargo, all lightweight hatch covers are pulled to the length of a single lightweight hatch cover symmetrically arranged at the front or rear of the ship, so that the ship's cargo hatches are fully opened for loading and unloading cargo. This utility model of a power station directly sets up symmetrically arranged multi-level stepped hatch coamings on both sides of the hatch opening on the main deck. The top edge of the multi-level steps serves as the planar track for the lightweight hatch cover's traveling rollers. This planar track is not actually set up; its guiding structure is achieved by adding a port and starboard guide roller for contact with the stepped hatch coaming on the hatch sidewall and traveling roller structure. In this way, when the lightweight solar photovoltaic power generation module hatch cover rolls longitudinally along the top edge of the stepped hatch coaming, the sidewalls on both sides of the hatch cover contact the port and starboard guide rollers, achieving a guiding function. This allows the entire lightweight solar photovoltaic power generation module hatch cover to roll smoothly longitudinally along the entire cargo hold. Multiple hatch covers can be overlapped within the length of a single hatch cover, allowing the ship's cargo hatch to be opened or closed, enabling normal loading and unloading operations.

[0061] Furthermore, the top of the cockpit 10 of the hull 9 is covered with a cockpit solar panel 11, the top of the bow deck 16 of the hull 9 is covered with a bow solar panel 15, and the top of the stern deck 12 of the hull 9 is covered with a stern solar panel 12. The use of the aforementioned cockpit solar panel 11, bow solar panel 15, and stern solar panel 12 improves the utilization rate of solar energy, thereby effectively increasing power generation.

[0062] Furthermore, all lightweight hatch covers are divided into two groups, and the two groups are symmetrically arranged on the top of the stepped hatch coaming 17; when the hatch is open, the two groups of lightweight hatch covers move toward the front and rear ends of the ship respectively; the number of lightweight hatch covers in the two groups is the same. In this embodiment, there are a first lightweight hatch cover 1, a second lightweight hatch cover 2, a third lightweight hatch cover 3, a fourth lightweight hatch cover 4, a fifth lightweight hatch cover 5, a sixth lightweight hatch cover 6, a seventh lightweight hatch cover 7, and an eighth lightweight hatch cover 8. The first lightweight hatch cover 1, the second lightweight hatch cover 2, the third lightweight hatch cover 3, and the fourth lightweight hatch cover 4 form a group, and the fifth lightweight hatch cover 5, the sixth lightweight hatch cover 6, the seventh lightweight hatch cover 7, and the eighth lightweight hatch cover 8 form a second group. The first lightweight hatch cover 1, the second lightweight hatch cover 2, the third lightweight hatch cover 3, and the fourth lightweight hatch cover 4 are located at the stern and overlap at one end of the stern, while the fifth lightweight hatch cover 5, the sixth lightweight hatch cover 6, the seventh lightweight hatch cover 7, and the eighth lightweight hatch cover 8 are located at the bow and overlap at one end of the bow.

[0063] Furthermore, each lightweight hatch cover includes a hatch cover frame 101, with strong crossbeams 102 and strong longitudinal beams 106 arranged between the hatch cover frames 101. Vertical frames 103 are provided on both sides of the bottom of the hatch cover frame 101, and a limiting roller mechanism 19 is installed at the bottom end of the vertical frames 103. A water baffle 105 is provided at the top of the hatch cover frame 101 and at the overlapping part of adjacent lightweight hatch covers. Diagonal reinforcing rods 104 are arranged between the vertical frames 103. The lightweight hatch cover ensures its structural strength and stability, and enables the installation of the solar panel 14.

[0064] Furthermore, the outer surfaces of the hatch cover frame 101 and the vertical frame 103 are fitted with corrosion-resistant and weatherproof thin steel plates; the aforementioned thin steel plates provide excellent waterproofing.

[0065] Furthermore, a hatch cover gap 20 is provided between the lightweight hatch covers of adjacent layers;

[0066] Furthermore, an eye plate 24 for hooking onto a towing shackle is provided on the outer wall of the vertical frame 103 located at the end. The eye plate 24 can be used to connect with the power unit during subsequent towing, thereby realizing the towing movement of the lightweight hatch cover.

[0067] Furthermore, a flexible rubber plate is installed on the outer wall of the water baffle 105 to shield the gaps of adjacent lightweight hatch covers and achieve weather sealing.

[0068] Furthermore, the limiting roller mechanism 19 includes a base 1901. The bottom end of the horizontal plate of the base 1901 is connected by multiple vertical shaft plates 1907. Horizontally arranged roller shafts 1902 are installed between the vertical shaft plates 1907. The end of the roller shaft 1902 is provided with a cotter pin hole 1904. A positioning sleeve 1908 and a roller bearing 1903 are fitted on the roller shaft 1902. A spacer sleeve 1910 is positioned between the roller bearing 1903 and the vertical shaft plate 1907. The roller bearing 1903 is rolled and supported on the top of the step 18. Multiple horizontal shaft plates 1909 are fixed on the inner wall of the vertical plate of the base 1901. A vertically arranged guide roller shaft 1906 is installed on the horizontal shaft plate 1909. A guide roller 1905 is fitted on the guide roller shaft 1906. The guide roller 1905 is in contact with the outer wall of the step 18. The aforementioned limiting roller mechanism 19 ensures that the lightweight hatch cover can move along the step 18. Roller bearings 1903 provide rolling support at the top of the step 18, enabling movement at the top of the step 18. Guide rollers 1905 can engage with the outer wall of the step, thus achieving lateral limiting.

[0069] Furthermore, a movable connecting device 21 is provided between adjacent lightweight hatch covers for combined connection, and is used for temporary connection when the lightweight hatch covers are opened or closed. The movable connecting device 21 includes a pin sleeve 2101 fixed on the outer lightweight hatch cover and a threaded sleeve 2103 fixed on the inner lightweight hatch cover. The threaded sleeve 2103 has an internal thread 2104 machined inside. A threaded connecting shaft 2102 is installed between the pin sleeve 2101 and the threaded sleeve 2103. The outer end of the threaded connecting shaft 2102 is provided with a hexagonal head 2107, and the inner end of the threaded connecting shaft 2102 is provided with a threaded post 2105 and a tapered end 2106. The threaded post 2105 and the internal thread 2104 form a threaded engagement. Through the aforementioned threaded connecting shaft 2102, combined connection between two adjacent lightweight hatch covers can be achieved.

[0070] Furthermore, it also includes a power unit for opening or closing the lightweight hatch cover; the power unit is a winch traction mechanism; the winch traction mechanism includes winches 22 installed on the top of the main deck and located at the four corners of the hatch, the winches 22 are connected to the eyeplates 24 on the outer wall of the lightweight hatch cover via matching traction chains 23 and shackles, and also includes guide sprockets 25 and steering sprockets 26 for guiding and turning the traction chain 23. The above-mentioned power unit can provide the power for opening or closing the lightweight hatch cover.

[0071] Furthermore, the length of the lightweight hatch cover is determined by dividing it into even numbers according to the total length of the ship's cargo hold. After determining the length of each lightweight hatch cover, it is adjusted accordingly based on the length and width of the solar panel 14. The adjustment range should be such that the solar panel 14 is fully covered on the lightweight hatch cover, leaving an appropriate distance from the edge without wasting the area on the lightweight hatch cover.

[0072] Example 2:

[0073] On the other hand, this utility model provides an operation method for a marine solar photovoltaic power station, including the following steps:

[0074] The specific steps for opening lightweight hatch covers to access all cargo hatches on the ship are as follows:

[0075] Step 1.1, Installation of the movable connecting device 21:

[0076] Install movable connection devices 21 between all pairs of lightweight hatch covers on the entire ship;

[0077] Step 1.2, Connection of the power unit:

[0078] The power unit is connected to the lightweight hatch cover at the very end of the other end via traction chain 23 and shackle.

[0079] Step 1.3, disassembly of the first movable connecting device 21:

[0080] Remove the movable connection device 21 between the first lightweight hatch cover and the adjacent lightweight hatch cover;

[0081] Step 1.4, towing and opening of the lightweight hatch cover:

[0082] The traction chain 23 of the starting power unit drives the last lightweight hatch cover. Through the combined action of the lightweight hatch cover and the movable connecting device 21, all lightweight hatch covers except the first lightweight hatch cover are moved synchronously, so that the second lightweight hatch cover overlaps the outside of the first lightweight hatch cover, thus realizing the retraction of the second lightweight hatch cover.

[0083] Step 1.5: The lightweight hatch covers of the next section are opened sequentially by towing.

[0084] First, remove the movable connecting device 21 between the secondary lightweight hatch covers, and repeat step 1.4, finally placing all the lightweight hatch covers overlapping at the front or rear of the ship.

[0085] Step 1.6. Unloading cargo from the cargo hold:

[0086] After all the lightweight hatch covers are opened, the top of the entire cargo hold is open, and the cargo inside the cargo hold is unloaded.

[0087] Meanwhile, because the solar-powered lightweight hatch cover is in an overlapping state, solar power generation is temporarily stopped.

[0088] Example 3:

[0089] The lightweight hatch covers are closed to seal all cargo hatches. Power is generated by solar panels 14 to supply electricity to the ship. Specific steps include:

[0090] Step 2.1, Connection of the power unit:

[0091] The power unit is routed around the steering sprocket 26 via the traction chain 23, and the other end of the traction chain 23 is connected to the last lightweight hatch cover via a shackle.

[0092] Step 2.2, towing of the last lightweight hatch cover:

[0093] The traction chain 23 of the start-up power unit drives the end lightweight hatch cover, thereby pulling out the overlapping end lightweight hatch covers:

[0094] Step 2.3, Installation of the movable connecting device 21:

[0095] After the last lightweight hatch cover is retrieved, install the movable connection device 21 between the last lightweight hatch cover and the adjacent lightweight hatch cover.

[0096] Step 2.4, sequential towing of the next section of lightweight hatch cover:

[0097] Continue to start the traction chain 23 of the power unit, drive the last section of the lightweight hatch cover through the traction chain 23, and drive the next section of the lightweight hatch cover in turn with the help of the connected lightweight hatch covers. Then, connect the movable connecting device 21 step by step, start the power unit one by one, and finally realize the traction of all the lightweight hatch covers and cover the hatches of the entire cargo hold.

[0098] Step 2.5, normal power generation of solar panel 14:

[0099] Once all the lightweight hatch covers are unfolded, the system will be fully connected and the entire cargo hold will be completely covered. The solar panels 14 will then cover the entire cargo hold opening, receiving direct sunlight. The marine solar photovoltaic power station will then operate, providing electricity to the ship.

[0100] Example 4:

[0101] The design process of the lightweight hatch cover described in this utility model is as follows: 1. Given the total length of the ship's cargo hold, divide it into even numbers, and determine the appropriate number of covers based on the total length of the cargo hold. 2. After determining the length of each lightweight hatch cover, make appropriate adjustments based on the length and width of the solar photovoltaic panels. The adjustment range should ideally allow the solar photovoltaic panels to fully cover the lightweight hatch cover, leaving an appropriate distance from the edge without wasting area on the lightweight hatch cover. Its structural form uses high-strength lightweight rectangular steel pipes to create a strong frame around the perimeter, plus high-strength rectangular steel pipe strong crossbeams and strong longitudinal girder, and is fully covered with a steel rainproof layer.

[0102] To ensure the smooth rolling and overlapping of this lightweight hatch cover within the length of a single hatch cover, the height of the lightweight hatch cover, along with its side walls and the limiting roller mechanism, is determined as follows:

[0103] 1. Based on the strength requirements, the cross-sectional dimensions of the strong crossbeams and strong longitudinal girder rectangular steel tubes are calculated. The height of the first lightweight hatch cover is determined by adding the height of the rectangular steel tube cross-section to the required height of the cargo stacking in the ship's cargo hold. The height of the first lightweight hatch cover is determined by adding the height of the lowest overlapping side of the first lightweight hatch cover to the height of the rolling roller and side guide roller assembly. The rollers of the first lightweight hatch cover height are arranged at the top layer of the stepped hatch coaming.

[0104] 2. The height of the second lightweight hatch cover is based on the first cargo hatch, plus a suitable gap when the first and second lightweight hatch covers overlap during rolling, and taking into account a certain deformation margin. The traveling rollers of the second lightweight hatch cover are lower than the next step of the traveling rollers of the first lightweight hatch cover. Its hatch cover, side walls, and limiting roller mechanism are located outside the first hatch cover, and are designed with a suitable gap to prevent friction when the rollers travel.

[0105] 3. Following the same logic, for the 3rd, 4th or more hatch covers, determine their height and width using the same method. This will eventually allow multiple hatch covers to be rolled and overlapped within the length of a single hatch cover.

[0106] The left and right outer sides of the frame-type hatch cover are fitted with thin steel plates that are corrosion-resistant and weatherproof, and the weight of the hatch cover is strictly controlled.

[0107] 4. Limit roller mechanism 19 assembly:

[0108] The ship's solar photovoltaic power station uses a winch to pull and roll multiple sets of hatch covers together along the length of a single hatch cover via steel chains and accessories. Located on the stepped hatch coaming of the main deck, the total thickness of these multiple overlapping sets must be carefully considered to ensure unobstructed passage for crew members. Therefore, controlling the thickness of the hatch cover sidewalls is crucial. Consequently, the hatch cover sidewalls feature a narrow design, constructed from high-strength steel using a truss-frame rectangular steel tube structure. Similarly, the traveling rollers and guide rollers also employ a narrow design.

[0109] After determining the principles of narrow design for the rollers and guide rollers, double-row roller bearings were selected for the traveling rollers. These bearings have high load-bearing capacity, small dimensions, and low cost. They can be purchased in bulk, and the market supply is sufficient. Similarly, the roller load-bearing shafts are also made of high-strength alloy steel, which is suitable for matching the narrow roller design.

[0110] The guide roller is designed with a flexible bronze bushing and a high-strength pin. The main body of the roller and the guide roller are made of welded components.

[0111] After completion, the roller and guide roller assembly is welded to the lowest rectangular steel pipe longitudinal beam of the hatch cover sidewall. It is required to have qualified manufacturing precision. During the manufacturing process, a 1:1 ship frame is used in the workshop to strictly control the parallelism error of the left and right sides within the allowable error range.

[0112] 5. The lightweight hatch cover for marine solar photovoltaic power generation components provides a weatherproof and airtight seal. The multi-roller overlapping opening cargo hatch cover of this utility model has multiple connecting seams between the two pieces. To prevent rainwater from entering the cargo hold, the two hatch covers with different heights are combined by overlapping them. The top edges of both ends of the hatch cover, the left and right sides, and the side walls are equipped with raised water-blocking structures to prevent rainwater from entering the ship's cargo hold. A flexible rubber plate is installed at the upper gap of the seam to further shield the gap and achieve a weatherproof seal.

[0113] The top surface of the hatch and the left and right sides are made of corrosion-resistant thin-plate weatherproof panels to reduce the weight of the hatch cover and ensure the ship's cargo capacity.

[0114] 6. A positioning device for the relative positions of hatch covers: When these multiple lightweight hatch covers are opened and closed, the ship will experience longitudinal and lateral rolling under the action of wind and waves or during navigation. To prevent the hatch covers from sliding and causing displacement at the joints, thus losing their weathertightness, it is necessary to position the relative positions of each hatch cover. This utility model achieves this by sequentially installing threaded bases at appropriate positions on the first, second, third, and subsequent layers, and firmly welding them to the side walls of the hatch covers. Next, bolts with through holes are installed at points on the side walls of the second layer of hatch covers corresponding to these bases. Through the through holes, positioning bolt seats are then tightened to the threads of the inner layer of hatch cover side walls according to design requirements. In this way, the relative positions of two hatch covers are positioned in a simple manner. By using this method to position and tighten all the hatch covers on the entire ship, displacement between two hatch covers can be prevented, thus preventing loss of weathertightness.

[0115] 7. Measures to prevent sudden storms: The lightweight solar photovoltaic hatch cover used on this ship is protected against sudden storms by: firmly welding movable connecting rings to the side walls of the ship's hatch coaming and the side walls of the lightweight hatch cover, and then locking them with a set screw buckle. This achieves a firm connection between the lightweight hatch cover and the hull, preventing sudden storms and preventing the lightweight hatch cover from shifting and losing its weathertightness due to the external force of the storm, thus ensuring the safety of the ship.

[0116] 8. The opening and closing of the lightweight hatch cover for marine solar photovoltaic power generation: The opening and closing of the rolling lightweight hatch cover of this utility model is achieved by an electric winch through the traction of a professional lifting chain, steering sprocket, and end shackles. The farthest end of the traction is the farthest point of the lightweight hatch cover. When opening, the movable connecting device between the second lightweight hatch cover and the closest point to the winch is removed. The winch is started to roll the second lightweight hatch cover and subsequent lightweight hatch covers into the cavity of the first lightweight hatch cover through the traction of the chain. At this time, the connecting bolts between the second and third lightweight hatch covers are removed. The winch is restarted to roll the third lightweight hatch cover into the cavity of the first lightweight hatch cover through the traction of the steel chain. In the same way, multiple lightweight hatch covers are pulled into the cavity of the first lightweight hatch cover, and the ship's cargo hatch is opened, allowing for loading or unloading.

[0117] Generally, it is best to divide these hatch covers into 8 pieces, with 4 pieces as a group. This combination allows the lightweight hatch covers to overlap within 1 / 4 of their length, and the cargo hold can be opened to 3 / 4 of its length, which is the optimal combination.

[0118] Example 5:

[0119] Figure 1The example shown is a main view of the Yangtze River 130m new energy multipurpose vessel. The main parameters are: total length 130m, beam 16.36m, depth 8m, and cargo hold total length 99.134m. It is equipped with 8 lightweight hatch covers with solar photovoltaic panels, plus an overlap length of 0.2m between each pair of lightweight hatch covers. The length of each lightweight hatch cover is 13.62m. It is divided into a group of 4 lightweight hatch covers at the bow and a group of 4 lightweight hatch covers at the stern. In order to allow the 4 lightweight hatch covers to roll and overlap within the length of one lightweight hatch cover, the height and width of each lightweight hatch cover are designed in a stepped shape. The lowest one can roll into the belly cavity of the second lightweight hatch cover, the second can roll into the third, and the third can roll into the fourth.

[0120] The minimum height of a lightweight hatch cover is set at 1.2m from the top edge of the cargo hold coaming, taking into account the need to facilitate cargo stacking.

[0121] Figure 2 The image shows a top view of the lightweight solar photovoltaic hatch cover in this embodiment. The upper surface of the eight lightweight hatch covers along the entire length of the cargo hold is covered with solar photovoltaic panels. Based on the dimensions of the solar photovoltaic panels (2172mm × 1303mm), and considering the ship's width in this embodiment, a passageway of 1.26m is provided on both sides of the main deck for crew work and movement. Adding the total thickness required for the four thin, lightweight hatch covers, the required width is 0.535m. Therefore, 1.265 + 0.535 = 1.8m, resulting in a main deck width of 1.8m.

[0122] Six solar photovoltaic panels are arranged in the width direction of the ship. In the length direction, the lightweight hatch cover is adjusted to be fully covered with solar photovoltaic panels based on its length. The length of the lightweight hatch cover is adjusted to have two large components with 10 rows of photovoltaic panels and a large component with 9 rows of photovoltaic panels.

[0123] The width of each lightweight hatch cover is based on the width of the innermost one, plus the joint gap to determine the width of the second lightweight hatch cover, and so on. The overall width is such that the larger package can be rolled into the cavity of the fourth lightweight hatch cover within the cavity of the first cargo hatch cover.

[0124] Figure 3 The image shows a cross-sectional view of a single piece of the lightweight solar photovoltaic hatch cover in this embodiment. The material selected is lightweight, and all parts are made of high-strength steel. The structural profile is made of thin-walled rectangular steel tubes. The top surface of the hatch cover is designed with strong crossbeams and strong longitudinal girders, and is equipped with ordinary crossbeams and longitudinal beams. The surrounding rectangular steel tube frame is shown in the structural diagram of the lightweight hatch cover. The rollers and guide rollers designed at the bottom of the side wall of the lightweight hatch cover utilize the stepped hatch coaming as a track.

Claims

1. A marine solar photovoltaic power plant, characterized in that, The ship body (9) is provided with a plurality of groups of light hatch covers which are arranged in an overlapping manner on the top of the stepped hatch coaming (17) and are supported by the limiting roller mechanism (19) on the top of the stepped hatch coaming (17).

2. A solar photovoltaic power plant for a ship according to claim 1, characterized in that: The top of the driving cabin (10) of the ship body (9) is paved with the driving cabin solar panel (11), the top of the bow top awning deck (16) of the ship body (9) is paved with the bow top solar panel (15), and the top of the stern top awning deck of the ship body (9) is paved with the stern top solar panel (12).

3. A solar photovoltaic power plant for boats according to claim 1, characterized in that: The two groups of light hatch covers are symmetrically arranged on the top of the stepped hatch coaming (17).

4. A solar photovoltaic power plant for boats according to claim 1, characterized in that: The single light hatch cover comprises a hatch cover framework (101), a strong cross beam (102) and a strong longitudinal beam (106) are arranged between the hatch cover frameworks (101), vertical frameworks (103) are arranged on the bottom sides of the hatch cover frameworks (101), the bottom ends of the vertical frameworks (103) are fitted with the limiting roller mechanism (19), a water baffle (105) is arranged at the top end of the hatch cover framework (101) and at the joint of the adjacent light hatch covers, and an inclined reinforcing rod (104) is arranged between the vertical frameworks (103).

5. A solar photovoltaic power plant for a ship according to claim 4, characterized in that: The outer surfaces of the hatch cover framework (101) and the vertical framework (103) are provided with corrosion-resistant and weather-resistant thin steel plates; The adjacent layers of light hatch covers are provided with hatch cover gaps (20); The outer wall of the vertical framework (103) at the end is provided with an eye plate (24) for hooking a towing shackle; The outer wall of the water baffle (105) is provided with a flexible rubber plate which blocks the gap between the adjacent light hatch covers and realizes the weather sealing.

6. A solar photovoltaic power plant for a ship according to claim 5, characterized in that: The limiting roller mechanism (19) comprises a base (1901), the bottom end of the horizontal plate of the base (1901) is provided with a plurality of vertical shaft plates (1907), the vertical shaft plates (1907) are provided with roller shafts (1902) arranged horizontally and installed therebetween, the end portions of the roller shafts (1902) are provided with split pin holes (1904), the roller shafts (1902) are provided with positioning sleeves (1908) and roller bearings (1903) sleeved thereon, the roller bearings (1903) are rolling supported on the top end of the step (18), and the inner walls of the vertical plates of the base (1901) are fixed with a plurality of horizontal shaft plates (1909), the horizontal shaft plates (1909) are provided with guide roller shafts (1906) arranged vertically and installed thereon, the guide roller shafts (1906) are provided with guide rollers (1905) sleeved thereon, and the guide rollers (1905) are in contact with the outer side walls of the step (18).

7. A solar photovoltaic power plant for boats according to claim 5, characterized in that: The adjacent lightweight hatch covers are provided with movable connecting devices (21) for combined connection of the two, and temporary connection when the lightweight hatch covers are opened or closed; The movable connecting device (21) comprises a pin shaft sleeve (2101) fixed on the outer lightweight hatch cover, a threaded sleeve (2103) fixed on the inner lightweight hatch cover, an inner thread (2104) formed in the threaded sleeve (2103), a threaded connecting shaft (2102) installed between the pin shaft sleeve (2101) and the threaded sleeve (2103), a hexagonal head (2107) arranged at the outer end of the threaded connecting shaft (2102), a threaded column (2105) and a tapered end (2106) arranged at the inner end of the threaded connecting shaft (2102), and the threaded column (2105) and the inner thread (2104) are in threaded cooperation.

8. A solar photovoltaic power plant for boats according to claim 5, characterized in that: The power device for opening or closing the lightweight hatch cover is also provided.

9. A solar photovoltaic power plant for boats according to claim 5, characterized in that: The power device adopts a winch traction mechanism.

10. A solar photovoltaic power plant for boats according to claim 5, characterized in that: The winch traction mechanism comprises a winch (22) arranged on the top of the main deck and located at the four corner portions of the hatch, the winch (22) is connected with the eye plate (24) on the outer wall of the lightweight hatch cover through a matched traction chain (23) and a shackle, and the winch (22) further comprises a guide sprocket (25) and a steering open sprocket (26) for guiding and steering the traction chain (23). The length of the lightweight hatch cover is divided into an even number according to the total length of the cargo hold of the ship, and after the length of each lightweight hatch cover is determined, the length and width of the solar panel (14) are adjusted accordingly, and the adjustment range is preferably that the solar panel (14) is fully arranged on the lightweight hatch cover with a proper distance from the edge.

Images