Offshore floating type photovoltaic supporting structure system

Abstract

The invention relates to the technical field of offshore photovoltaic power generation, and discloses an offshore floating type photovoltaic supporting structure system which comprises a main floating pipe capable of providing main buoyancy support for the whole and providing enough buoyancy in seawater, so that the whole photovoltaic system floats on the sea surface; the auxiliary floating pipe, the main floating pipe and the auxiliary floating pipe are connected with the three-dimensional truss to maintain the overall shape and rigidity of the system, extra buoyancy is increased by the auxiliary floating pipe, the stability of the system under various ocean conditions is ensured, the buoyancy load of the system is dispersed through cooperation of the main floating pipe and the auxiliary floating pipe, local stress concentration is reduced, and the service life of the system is prolonged. The buoyancy of seawater and the action of waves should be considered in the design of the floating pipes, it is ensured that the system stably floats on the sea surface through reasonable layout and design, and it is ensured that the system can still keep stable under the action of strong stormy waves through the high-strength and rigid design of the three-dimensional trusses and the auxiliary trusses; and the stability and safety of the whole structure are kept.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore photovoltaic power generation, and in particular to an offshore floating photovoltaic support structure system. Background Art

[0002] With the rapid development of my country's economy and the advancement of urbanization, densely populated cities in coastal areas are facing huge pressure on electricity consumption. In order to alleviate this pressure and optimize the electricity consumption structure, deploying photovoltaic power stations in the surrounding waters of these areas has become a promising solution. This will not only help alleviate the shortage of land resources, but also help achieve the goal of carbon neutrality.

[0003] In a floating offshore photovoltaic support structure with application number CN202311478815.6, the floating column is directly moored to the seabed suction anchor by a mooring cable. The mooring cable is in a vertical form and does not require a catenary mooring form, which can greatly reduce the footprint. The floating column can provide huge buoyancy. Due to the limitation of the vertical mooring cable, the floating column will be in a vertical state. When the floating column is subjected to horizontal wave and current loads, the buoyancy will act as a righting force to push the floating column back to a vertical state. The four floating columns form a rectangle on the plane. The steel cables and diagonal braces form a flexible bracket, which can achieve a large-span structure with a light weight.

[0004] Because of the harsh installation environment of offshore photovoltaic systems, it is necessary to pay attention to a series of issues such as the economy of the entire system, structural safety, and adaptability to extremely severe weather. The main difficulty in the construction of large-scale floating photovoltaic systems on water is the fixation of the float. The solution to this problem in the prior art is to fix it by means of anchor chains. However, in actual use, wind and waves and water level fluctuations have a great impact on the float. If it is not fixed properly, problems such as drift or collision may occur. In addition, the floating photovoltaic support structure is subjected to the effects of wind and waves for a long time during its operation on the water. At the same time, the water flow under the water is turbulent, which can easily cause the floating photovoltaic support structure to shake violently on the water surface. During the long-term shaking process, the instability increases and the electronic components inside the photovoltaic panel are prone to damage.

[0005] Therefore, the present invention solves the above-mentioned problem through an offshore floating photovoltaic support structure system. Summary of the invention

[0006] The object of the present invention is to provide an offshore floating photovoltaic support structure system to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an offshore floating photovoltaic support structure system, comprising: A main floating tube, wherein the main floating tube is arranged orthogonally; A connector, the connector being arranged at a connection point between two adjacent sets of main floating pipes; An auxiliary floating tube, wherein the auxiliary floating tube is longitudinally fixedly mounted on the connector; A fixer, the fixer being fixedly welded to the top end of the auxiliary floating tube; A three-dimensional truss, which is arranged above the main floating tube and fixedly welded to the top of the fixer; Auxiliary trusses are fixedly installed between the three-dimensional trusses, and are used in conjunction with the three-dimensional trusses to fix photovoltaic components on top of the three-dimensional trusses.

[0008] Preferably, the connector comprises a fixing cylinder, a limiting cylinder is integrally formed on the outer side wall of the fixing cylinder, the limiting cylinder matches the main floating tube, and the limiting cylinder and the main floating tube are fixed by heat welding, and the auxiliary floating tube is fixedly assembled in the fixing cylinder.

[0009] Preferably, the fixture includes a lower flange fixed to the top of the auxiliary floating tube, an upper flange is matched above the lower flange, a welding ball is welded to the top of the upper flange, the three-dimensional truss is fixedly welded to the top of the welding ball, a flexible connecting sleeve is assembled between the upper flange and the lower flange, and the upper flange and the lower flange are fixedly connected by multiple sets of fastening bolts.

[0010] Preferably, the three-dimensional truss includes a square main frame, which is fixedly welded and assembled on the top of the welding ball, and reinforced trusses are staggered between the main frames. The main frame and the reinforced trusses have the same structural composition, both of which are composed of an upper chord, a horizontal connecting rod, a diagonal web and a lower chord.

[0011] Further preferably, the upper chords are divided into two groups and arranged in parallel, the horizontal connecting rod is welded between the two groups of upper chords, a group of lower chords is arranged directly below the two groups of upper chords, and the two groups of upper chords and one group of lower chords are distributed in a triangular shape, and the bottoms of the two groups of upper chords are welded with obliquely arranged diagonal web members, and the bottom ends of the diagonal web members are welded to the top of the lower chords.

[0012] Preferably, a guide seat is slidably inserted into the bottom of the fixed cylinder, a floating airbag is installed at the bottom end of the guide seat, a limiting ring is integrally formed on the inner wall of the fixed cylinder, a guide rod is slidably inserted in the middle of the limiting ring, the bottom end of the guide rod is fixed to the top of the guide seat, a pushing member is fixed to the top of the guide rod, a driving member is fixed to the top of the inner cavity of the fixed cylinder, and a pressure-bearing airbag mounted on the outer wall of the guide rod is fixedly installed between the bottom outer edge of the pushing member and the top of the limiting ring.

[0013] Preferably, the pushing member is an armature plate, and the pushing member is slidably assembled inside the fixed cylinder, the driving member and the pushing member match, the driving member is an electromagnet, the guide seat size matches the fixed cylinder, and the pressure airbag is connected to the floating airbag through a high-pressure air duct.

[0014] Preferably, a protective component facing outward is fixed to the bottom of the main floating tube, and the protective component includes a flow collecting tube fixedly welded to the bottom of the main floating tube and arranged perpendicular to the main floating tube, the outer end of the flow collecting tube is integrally provided with a guide bucket, and the other end of the flow collecting tube is integrally provided with a throttling tube, the throttling tube is an upward curved tube, and the other end of the throttling tube is integrally provided with a drainage tube, and the drainage tube is facing the main floating tube.

[0015] Preferably, the guide scoop is funnel-shaped, and the diameter of the guide scoop is larger than the diameter of the focusing tube, the diameter of the focusing tube is larger than the diameter of the throttling tube, and the connection between the focusing tube and the throttling tube is an arc-shaped transition.

[0016] Furthermore, the drainage cylinder is an arc-shaped cylinder, and the drainage cylinder is located 45 degrees obliquely above the main floating tube, and the center line of the end face of the drainage cylinder coincides with the center point of the cross section of the main floating tube.

[0017] Preferably, a drive shaft is arranged in the focusing cylinder horizontally and passes through the throttling cylinder, a shaft seal is arranged at the assembly point of the drive shaft and the throttling cylinder, a bearing seat is fixed at the bottom of the throttling cylinder, and the drive shaft is rotatably assembled in the bearing seat, one end of the drive shaft extends into the focusing cylinder and is fixedly assembled with an impeller, and the other end of the drive shaft is fixedly assembled with a propeller.

[0018] Technical effects and advantages of the present invention: 1. The main floating tube in the present invention can provide the main buoyancy support of the whole system. The main floating tube provides sufficient buoyancy in the seawater to make the whole photovoltaic system float on the sea surface. Secondly, the main floating tube and the auxiliary floating tube maintain the overall shape and rigidity of the system by connecting the three-dimensional truss. The auxiliary floating tube increases the additional buoyancy to ensure the stability of the system under various marine conditions. The cooperation of the main floating tube and the auxiliary floating tube disperses the buoyancy load of the system and reduces the local stress concentration, thereby improving the stability and wind and wave resistance of the structure. The design of the floating tube should take into account the buoyancy of seawater and the effect of waves. Through reasonable layout and design, it is ensured that the system floats stably on the sea surface.

[0019] 2. The three-dimensional truss in the present invention is the main framework of the entire structural system. It is composed of multiple rods, which form a stable overall structure through mutual support and cooperation in three-dimensional space, ensuring uniform distribution of loads in each part and reducing local stress concentration. This design enables the three-dimensional truss to withstand greater external impacts and loads, and maintain the stability and safety of the overall structure. The design of the main buoy and auxiliary buoy enables the structure to effectively resist the impact of wind, waves and currents. The high-strength and rigid design of the three-dimensional truss and auxiliary truss ensures that the system can remain stable under strong winds and waves, and will not affect the power generation efficiency of the photovoltaic modules due to structural deformation or damage.

[0020] 3. The present invention arranges several groups of protective components on the periphery of the bottom of the support system. As long as the support system is affected by the impact of waves, the protective components on the side affected by the impact will start to convert the impact force, which not only cleverly alleviates the impact force of the waves, but also uses the impact force of the waves to drive the propeller to rotate, and generates thrust in the opposite direction of the water flow through the rotation, so that part of the impact force of the waves or water flow on the support system can be offset, which greatly improves the floating stability of the support system. In addition, the seawater behind the driving impeller is diverted, and the drainage direction is directly opposite to the main buoyancy tube, which greatly increases the downward pressure on the impacted side, and can effectively convert the waves one by one, so as to improve the anti-rollover ability of the support system when responding to the impact of waves and improve the floating stability.

[0021] 4. The present invention can control the driving member on this side to access the circuit, so that a magnetic repulsive force can be generated on the pushing member, forcing the pushing member to move downward in the fixed tube, and then driving the guide seat at the bottom end of the guide rod to move downward, thereby synchronously prompting the floating airbag to move downward, so that the immersion depth of the floating airbag is increased, and at the same time, as the pushing member moves downward, the pressure airbag can be squeezed synchronously, so that the gas inside the pressure airbag will be introduced into the floating airbag through the high-pressure air duct for gas replenishment, thereby increasing the expansion amount of the floating airbag, and then increasing the overall buoyancy force on the opposite side of the support system, and can be used in conjunction with the use of protective components to further improve the support system's anti-rollover ability, improve the support system's ability to resist wave impact and shock, and improve the floating stability of the support system at sea. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention; Figure 2 This is a schematic diagram of the overall explosion structure of an embodiment of the present invention; Figure 3 It is a schematic diagram of the enlarged structure of part A of the present invention; Figure 4 This is a schematic diagram of the first partial assembly structure of the first embodiment of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of part B of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the connector and the retainer of the present invention; Figure 7 It is a schematic diagram of the overall structure of the second embodiment of the present invention; Figure 8 This is a schematic diagram of the protective assembly and main floating tube assembly structure of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the protection component of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the fixed tube and the auxiliary floating tube assembly of the present invention.

[0023] In the figure: 1. main floating tube; 2. auxiliary floating tube; 3. connector; 31. fixing tube; 32. limiting tube; 33. driving member; 34. pushing member; 35. limiting ring; 36. pressure-bearing airbag; 37. guide rod; 38. guide seat; 39. floating airbag; 4. fixing device; 41. welding ball; 42. upper flange; 43. flexible connecting sleeve; 44. lower flange; 45. fastening bolt; 5. three-dimensional truss; 51. main frame; 52. strengthening truss; 53, 54, 55, 56, 6. auxiliary truss; 7. photovoltaic module; 8. protection module; 81. focusing tube; 82. guide bucket; 83. throttling tube; 84. drainage tube; 85. impeller; 86. driving shaft; 87. propeller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: This embodiment provides Figures 1 to 6 An offshore floating photovoltaic support structure system is shown, comprising: The main floating tube 1 is placed orthogonally to form a field-shaped floating island structure, which provides the main buoyancy support and ensures the stability and buoyancy of the entire photovoltaic system.

[0026] Connector 3 is arranged at the connection point of two adjacent groups of main floating pipes 1, and connector 3 reasonably selects three-way, four-way and five-way floating pipe nodes according to needs, so as to facilitate hot-melt docking of the main floating pipe 1 and the auxiliary floating pipe 2.

[0027] The auxiliary floating tube 2 is longitudinally fixedly mounted on the connector 3 and is arranged at the intersection of the main floating tube 1 to cooperate with the main floating tube 1 to improve the supporting strength, balance the buoyancy distribution, and reduce local stress concentration.

[0028] The fixer 4 is fixedly welded to the top of the auxiliary floating tube 2 to increase the connection strength and quick-disassembly performance between the three-dimensional truss 5 and the auxiliary floating tube 2.

[0029] The three-dimensional truss 5 is arranged above the main floating tube 1 and fixedly welded to the top of the fixture 4. As the main structural frame of the photovoltaic support structure system, the three-dimensional truss 5 provides overall rigidity and strength, disperses and transmits various loads (such as wind load, wave load and deadweight) on the photovoltaic system, and ensures structural safety.

[0030] Auxiliary truss 6, the auxiliary truss 6 is fixedly installed between the three-dimensional trusses 5, and is used in conjunction with the three-dimensional truss 5. The photovoltaic component 7 is fixedly installed on the top of the three-dimensional truss 5 to increase the local support of the three-dimensional truss 5, provide additional rigidity and strength, and connect the photovoltaic component 7 with the three-dimensional truss 5 to form an integral structure, which can improve the layout efficiency and maintenance convenience of the photovoltaic panel.

[0031] The main floating tube 1 can provide the main buoyancy support of the whole system. The main floating tube 1 provides sufficient buoyancy in the sea water to make the whole photovoltaic system float on the sea surface. Secondly, the main floating tube 1 and the auxiliary floating tube 2 maintain the overall shape and rigidity of the system by connecting the three-dimensional truss 5. The auxiliary floating tube 2 increases the additional buoyancy to ensure the stability of the system under various marine conditions. The cooperation of the main floating tube 1 and the auxiliary floating tube 2 disperses the buoyancy load of the system and reduces the local stress concentration, thereby improving the stability and wind and wave resistance of the structure. The design of the floating tube should take into account the buoyancy of sea water and the effect of waves, and ensure that the system floats stably on the sea surface through reasonable layout and design.

[0032] In addition, the photovoltaic module 7 is fixed to the three-dimensional truss 5 through the auxiliary truss 6 to form a stable photovoltaic power generation platform. Loads such as wind waves, ocean currents and the dead weight of the photovoltaic panels are dispersed and transmitted through the three-dimensional truss 5 to ensure the stability and safety of the entire structure. The three-dimensional truss 5 is the main framework of the entire structural system. It is composed of a plurality of rods, which form a stable overall structure through mutual support and coordination in three-dimensional space, ensuring that the loads of each part are evenly distributed and reducing local stress concentration. This design enables the three-dimensional truss 5 to withstand greater external shocks and loads and maintain the stability and safety of the overall structure.

[0033] The auxiliary truss 6 connects the photovoltaic module 7 and the three-dimensional truss 5, providing additional support and fixation to ensure the stability of the photovoltaic module 7. The auxiliary truss 6 also makes the arrangement of the photovoltaic module 7 more flexible and efficient, and is convenient for installation and maintenance. The photovoltaic module 7 is fixed to the three-dimensional truss 5 through the auxiliary truss 6 and can be adjusted and replaced when necessary. This design not only improves the installation efficiency of the photovoltaic panel, but also facilitates daily inspection and maintenance, reducing long-term operation and maintenance costs.

[0034] Due to the complex and changeable marine environment, the floating photovoltaic support structure system must have good wind and wave resistance and environmental adaptability. The design of the main floating tube 1 and the auxiliary floating tube 2 enables the structure to effectively resist the impact of wind, waves and currents. The high strength and rigidity design of the three-dimensional truss 5 and the auxiliary truss 6 ensure that the system can remain stable under strong winds and waves, and will not affect the power generation efficiency of the photovoltaic modules 7 due to structural deformation or damage.

[0035] See also Figure 6 The connector 3 includes a fixing cylinder 31, and a limiting cylinder 32 is integrally formed on the outer wall of the fixing cylinder 31. The limiting cylinder 32 matches the main floating tube 1, and the limiting cylinder 32 and the main floating tube 1 are fixed by hot welding. The auxiliary floating tube 2 is fixedly assembled in the fixing cylinder 31, which is convenient for the construction and assembly between the auxiliary floating tube 2 and the main floating tube 1.

[0036] See also Figure 3 and Figure 6 The fixture 4 includes a lower flange 44 fixed to the top of the auxiliary floating tube 2, an upper flange 42 is provided above the lower flange 44, a welding ball 41 is welded on the top of the upper flange 42, and the three-dimensional truss 5 is fixedly welded on the top of the welding ball 41. A flexible connecting sleeve 43 is assembled between the upper flange 42 and the lower flange 44, and the upper flange 42 and the lower flange 44 are fixedly connected by multiple sets of fastening bolts 45. The upper flange 42 and the welding ball 41 are integrally arranged with the three-dimensional truss 5. In this way, the connection between the upper flange 42 and the lower flange 44 by the fastening bolts 45 is convenient for the installation between the three-dimensional truss 5 and the auxiliary floating tube 2, and also improves the convenience of later maintenance. The flexible connecting sleeve 43 is a rubber gasket or a polyurethane cushion layer, which can absorb and alleviate the stress concentration caused by the mismatch of the upper and lower stiffness of the structure, and reduce the stress concentration and fatigue damage at the connection.

[0037] See also Figure 4 The three-dimensional truss 5 includes a square main frame 51, which is fixedly welded and assembled on the top of the welding ball 41. Reinforced trusses 52 are staggered between the main frames 51. The main frame 51 ensures the overall rigidity, and the staggered arrangement of the reinforced trusses 52 can improve the supporting strength of the main frame 51. At the same time, it can disperse and transfer various loads (such as wind load, wave load and deadweight) on the photovoltaic system to ensure structural safety.

[0038] The main frame 51 and the reinforced truss 52 have the same structural composition, and are both composed of an upper chord 53, a horizontal connecting rod 54, a diagonal web member 55 and a lower chord 56. The upper chord 53 is divided into two groups and arranged in parallel. The horizontal connecting rod 54 is welded between the two groups of upper chords 53. A group of lower chords 56 is arranged directly below the two groups of upper chords 53. The two groups of upper chords 53 and a group of lower chords 56 are distributed in a triangular shape. The bottoms of the two groups of upper chords 53 are welded with diagonal web members 55 arranged obliquely, and the bottom ends of the diagonal web members 55 are welded to the lower chords. At the top of 56, the three-dimensional truss 5 structure is an inverted triangular cross-section. Compared with the plane tube truss structure, the inverted triangular truss has better stability, greater torsional rigidity, and more beautiful appearance. In addition, in the case where the out-of-plane support is not arranged or cannot be arranged, the inverted triangular truss can provide a larger span space. Therefore, the three-dimensional truss 5 structure is composed of two upper chords 53 connected by diagonal webs 55 and lower chords 56, and then horizontal connecting rods 54 are arranged at the nodes to form a reinforced support frame to improve safety in use.

[0039] It is worth noting that when designing the offshore floating photovoltaic support structure system, the node connection between the main floating pipe 1, the auxiliary floating pipe 2 and the three-dimensional truss 5 is the key. The main floating pipe 1 and the auxiliary floating pipe 2 are connected by a multi-directional connector 3. The connector 3 has a slot and a sealing ring inside, and is fixed by hot-melt welding technology outside to ensure that the floating pipe is firmly connected and leak-proof. The specific connection method is as follows: First, ensure that the ends of the connected floating pipes are clean and free of oil, and the inside of the connector 3 is clean. Then, insert the ends of the main floating pipes 1 into the limiting tubes 32, and the auxiliary floating pipes 2 into the fixing tubes 31, ensuring that each pipe is fully inserted into the connector 3. Use a hot melt welding machine to heat the connection part until the connector 3 and the pipe are fused together. After the heating is completed, keep the connection position unchanged and wait for cooling and solidification to ensure a firm connection. The bottom of the three-dimensional truss 5 adopts a welding ball 41 node, and welds an upper flange 42. The lower flange 44 is fixed to the top of the auxiliary floating pipe 2, and is tightly matched with the auxiliary floating pipe 2 through a pre-designed groove or hole. Then, the hole at the bottom of the upper flange 42 is aligned with the connection hole on the lower flange 44, and the two are connected using corrosion-resistant fastening bolts 45 to ensure the sealing and stability of the connection. A flexible connecting sleeve 43 is added between the upper flange 42 and the lower flange 44 to absorb and alleviate the stress concentration caused by the mismatch of the upper and lower stiffnesses, and reduce the stress concentration and fatigue damage at the connection.

[0040] See also Fig.10A guide seat 38 is slidably inserted in the bottom of the fixed cylinder 31, and a floating airbag 39 is installed at the bottom end of the guide seat 38. A limiting ring 35 is integrally formed on the inner wall of the fixed cylinder 31, and a guide rod 37 is slidably inserted in the middle of the limiting ring 35. The bottom end of the guide rod 37 is fixed to the top of the guide seat 38, and a pushing member 34 is fixed to the top of the guide rod 37. A driving member 33 is fixed to the top of the inner cavity of the fixed cylinder 31, and a pressure-bearing airbag 36 mounted on the outer wall of the guide rod 37 is fixedly installed between the bottom outer edge of the pushing member 34 and the top of the limiting ring 35.

[0041] When the auxiliary floating tube 2 shares the buoyancy task, the floating airbag 39 immersed in the water provides buoyancy to the auxiliary floating tube 2, greatly reducing the depth of the main floating tube 1 immersed in the seawater and improving the floating ability.

[0042] The pusher 34 is an armature plate, and the pusher 34 is slidably assembled inside the fixed tube 31, the driving member 33 and the pusher 34 match, the driving member 33 is an electromagnet, the size of the guide seat 38 matches the fixed tube 31, and the pressure airbag 36 is connected to the floating airbag 39 through a high-pressure air guide tube.

[0043] Due to the complex and changeable offshore environment, the floating photovoltaic support structure system must have good wind and wave resistance and environmental adaptability. Therefore, when the support structure system works in a windy and wavy environment, once the support system is hit by waves, in order to prevent it from being submerged by the waves, the controller controls the driving member 33 to introduce current, which can generate a magnetic repulsive force on the pushing member 34, forcing the pushing member 34 to move downward in the fixed tube 31, and then can drive the guide seat 38 at the bottom of the guide rod 37 to move downward, so as to synchronously promote The floating airbag 39 is moved downward, so that the immersion depth of the floating airbag 39 is increased. At the same time, as the pushing member 34 moves downward, the pressure airbag 36 can be squeezed synchronously, so that the gas inside the pressure airbag 36 will be introduced into the floating airbag 39 through the high-pressure air duct for gas replenishment, thereby increasing the expansion amount of the floating airbag 39, and then increasing the overall buoyancy of the support system, which can further improve the buoyancy of the auxiliary floating tube 2, so that the buoyancy of the device can be enhanced when it is hit by waves, thereby improving the device's ability to resist waves.

[0044] Embodiment 2: This embodiment provides Figure 7-10The offshore floating photovoltaic support structure system shown in the embodiment includes the structure disclosed in Example 1. At the same time, a protective assembly 8 facing outward is fixed at the bottom of the main floating tube 1. The protective assembly 8 includes a flow collecting tube 81 fixedly welded to the bottom of the main floating tube 1 and arranged vertically with the main floating tube 1. The outer end of the flow collecting tube 81 is integrally provided with a guide bucket 82, and the other end of the flow collecting tube 81 is integrally provided with a throttling tube 83. The throttling tube 83 is an arc-shaped tube that bends upward, and the other end of the throttling tube 83 is integrally provided with a drainage tube 84, which is facing the main floating tube 1, and the guide bucket 82 is funnel-shaped, and the diameter of the guide bucket 82 is larger than the diameter of the focusing tube 81, the diameter of the focusing tube 81 is larger than the diameter of the throttling tube 83, the connection between the focusing tube 81 and the throttling tube 83 is an arc-shaped transition, a drive shaft 86 is arranged in the focusing tube 81 horizontally and passes through the throttling tube 83, a shaft seal is arranged at the assembly point of the drive shaft 86 and the throttling tube 83, a bearing seat is fixed at the bottom of the throttling tube 83, and the drive shaft 86 is rotatably assembled in the bearing seat, one end of the drive shaft 86 extends into the focusing tube 81 and is fixedly assembled with an impeller 85, and the other end of the drive shaft 86 is fixedly assembled with a propeller 87.

[0045] The outer edge of the supporting structure is provided with an outward-facing guide scoop 82, so that when the device is impacted by waves on the sea surface, the guide scoop 82 can realize partial drainage of seawater, prompting the seawater with kinetic energy to pass through the guide scoop 82 and enter the focusing tube 81. Due to the sudden reduction in the flow area, the flow velocity of the seawater introduced into the focusing tube 81 increases, and the impeller 85 is driven to rotate under the impact of the seawater, and then the propeller 87 is driven to start rotating under the drive shaft 86, so that the impact force of the seawater is effectively converted into a driving force generated by the rotation of the propeller 87 to resist the impact force of the waves, which can effectively relieve the impact force of the waves.

[0046] See also Figure 8 and Fig. 9 The drainage cylinder 84 is an arc-shaped cylinder, and the drainage cylinder 84 is located 45 degrees above the main floating tube 1, and the center line of the end face of the drainage cylinder 84 coincides with the center point of the cross section of the main floating tube 1. The seawater that drives the impeller 85 to rotate is discharged from the drainage cylinder 84 through the drainage of the throttling cylinder 83, so that the seawater forms a cycle and is discharged into the seawater. In this process, the water discharged from the drainage cylinder 84 is facing the main floating tube 1, so that the self-weight of the discharged seawater and the impact force when falling are used to apply downward pressure to the main floating tube 1 on the side impacted by the seawater, which can greatly alleviate the situation where one side of the device is too high due to the impact of waves, avoid the device from tipping over, and improve the ability to resist wave impact.

[0047] It is worth noting that since the direction of the protective components 8 is set outward, as long as there are waves impacting the support system, the protective components 8 on the impacted side will begin to convert the impact force, which not only cleverly alleviates the impact force of the waves, but also uses the impact force of the waves to drive the propeller 87 to rotate, and generates thrust in the opposite direction of the water flow through the rotation, so that part of the impact force of the waves or water flow on the support system can be offset, greatly improving the floating stability of the support system, and the seawater behind the driving impeller 85 is diverted, and the drainage direction is facing the main buoy 1, which greatly increases the downward pressure on the impacted side, and can effectively convert the waves one after another at one time to improve the support system's anti-rollover ability when responding to wave impacts and improve floating stability.

[0048] It should be noted that when the device is subjected to a large impact force from waves, although the protective component 8 can effectively alleviate the impact force of the waves, once the impact force of the waves is too large, the tilting force of the device will still change significantly. At this time, the opposite side that is impacted will be submerged in the sea water under the impact force of the waves, which will increase the possibility of the support system tipping over. Therefore, at this time, the controller will control the drive member 33 on this side to connect to the circuit, which can generate a magnetic repulsion force on the push member 34, forcing the push member 34 to move downward in the fixed tube 31, and then can drive the guide seat 38 at the bottom end of the guide rod 37 to move downward. , which synchronously causes the floating airbag 39 to move downward, thereby increasing the immersion depth of the floating airbag 39. At the same time, as the pusher 34 moves downward, the pressure-bearing airbag 36 can be squeezed synchronously, so that the gas inside the pressure-bearing airbag 36 will be introduced into the floating airbag 39 through the high-pressure air duct for gas replenishment, thereby increasing the expansion amount of the floating airbag 39, and then increasing the overall buoyancy force on the opposite side of the support system. The use of the protective component 8 can further improve the support system's anti-rollover ability, improve the support system's anti-wave impact and shock ability, and improve the support system's floating stability at sea.

[0049] Finally, it should be noted that the above are only 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An offshore floating photovoltaic support structure system, characterized in that: include: A main floating tube (1), wherein the main floating tube (1) is arranged orthogonally; A connector (3), wherein the connector (3) is arranged at a connection point between two adjacent sets of main floating pipes (1); An auxiliary floating tube (2), the auxiliary floating tube (2) being longitudinally fixedly mounted on the connector (3); A fixer (4), wherein the fixer (4) is fixedly welded to the top end of the auxiliary floating tube (2); A three-dimensional truss (5), the three-dimensional truss (5) being arranged above the main floating tube (1) and fixedly welded to the top of the fixer (4); An auxiliary truss (6) is fixedly installed between the three-dimensional trusses (5) and is used in conjunction with the three-dimensional trusses (5) to fix a photovoltaic assembly (7) on the top of the auxiliary truss (6).

2. The offshore floating photovoltaic support structure system according to claim 1, characterized in that: The connector (3) comprises a fixing cylinder (31), a limiting cylinder (32) is integrally formed on the outer wall of the fixing cylinder (31), the limiting cylinder (32) matches the main floating tube (1), and the limiting cylinder (32) and the main floating tube (1) are fixed by heat welding, and the auxiliary floating tube (2) is fixedly assembled in the fixing cylinder (31).

3. The offshore floating photovoltaic support structure system according to claim 2 is characterized in that: The fixture (4) comprises a lower flange (44) fixed to the top of the auxiliary floating tube (2); an upper flange (42) is provided above the lower flange (44); a welding ball (41) is welded to the top of the upper flange (42); the three-dimensional truss (5) is fixedly welded to the top of the welding ball (41); a flexible connecting sleeve (43) is installed between the upper flange (42) and the lower flange (44); and the upper flange (42) and the lower flange (44) are fixedly connected by a plurality of sets of fastening bolts (45).

4. The offshore floating photovoltaic support structure system according to claim 3 is characterized in that: The three-dimensional truss (5) comprises a square main frame (51), the main frame (51) is fixedly welded and assembled on the top of the welding ball (41), and reinforced trusses (52) are staggered between the main frames (51). The main frame (51) and the reinforced trusses (52) have the same structural composition, and are both composed of an upper chord (53), a horizontal connecting rod (54), a diagonal web (55) and a lower chord (56); The upper chord rods (53) are in two groups and are arranged in parallel. The horizontal connecting rod (54) is welded between the two groups of upper chord rods (53). A group of lower chord rods (56) is arranged directly below the two groups of upper chord rods (53). The two groups of upper chord rods (53) and one group of lower chord rods (56) are distributed in a triangular shape. The bottoms of the two groups of upper chord rods (53) are welded with obliquely arranged diagonal web rods (55), and the bottom ends of the diagonal web rods (55) are welded to the tops of the lower chord rods (56).

5. The offshore floating photovoltaic support structure system according to claim 2, characterized in that: A guide seat (38) is slidably inserted into the bottom of the fixed cylinder (31), and a floating airbag (39) is installed at the bottom end of the guide seat (38). A limiting ring (35) is integrally formed on the inner wall of the fixed cylinder (31), and a guide rod (37) is slidably inserted in the middle of the limiting ring (35). The bottom end of the guide rod (37) is fixed to the top of the guide seat (38), and a pushing member (34) is fixed to the top of the guide rod (37). A driving member (33) is fixed to the top of the inner cavity of the fixed cylinder (31), and a pressure-bearing airbag (36) sleeved on the outer wall of the guide rod (37) is fixedly installed between the bottom outer edge of the pushing member (34) and the top of the limiting ring (35).

6. The offshore floating photovoltaic support structure system according to claim 5, characterized in that: The pushing member (34) is an armature plate, and the pushing member (34) is slidably assembled inside the fixed cylinder (31), the driving member (33) and the pushing member (34) match, the driving member (33) is an electromagnet, the size of the guide seat (38) matches that of the fixed cylinder (31), and the pressure-bearing airbag (36) is connected to the floating airbag (39) via a high-pressure air guide tube.

7. The offshore floating photovoltaic support structure system according to claim 1, characterized in that: The bottom of each main floating tube (1) is fixed with a protective assembly (8) facing outwards, the protective assembly (8) comprising a flow collecting tube (81) fixedly welded to the bottom of the main floating tube (1) and arranged perpendicularly to the main floating tube (1), the outer end of the flow collecting tube (81) is integrally provided with a flow guide bucket (82), the other end of the flow collecting tube (81) is integrally provided with a throttling tube (83), the throttling tube (83) is an arc-shaped tube bent upwards, and the other end of the throttling tube (83) is integrally provided with a drainage tube (84), and the drainage tube (84) faces the main floating tube (1).

8. The offshore floating photovoltaic support structure system according to claim 7, characterized in that: The flow guide scoop (82) is funnel-shaped, and the diameter of the flow guide scoop (82) is greater than the diameter of the flow focusing tube (81), the diameter of the flow focusing tube (81) is greater than the diameter of the throttling tube (83), and the connection between the flow focusing tube (81) and the throttling tube (83) is an arc-shaped transition; The drainage cylinder (84) is an arc-shaped cylinder, and the drainage cylinder (84) is located 45 degrees obliquely above the main floating tube (1), and the center line of the end surface of the drainage cylinder (84) coincides with the center point of the cross section of the main floating tube (1).

9. The offshore floating photovoltaic support structure system according to claim 8, characterized in that: A drive shaft (86) is arranged in the focusing cylinder (81) and is transversely disposed and passes through the throttling cylinder (83); a shaft seal is arranged at the assembly point of the drive shaft (86) and the throttling cylinder (83); a bearing seat is fixed to the bottom of the throttling cylinder (83), and the drive shaft (86) is rotatably assembled in the bearing seat; one end of the drive shaft (86) extends into the focusing cylinder (81) and is fixedly assembled with an impeller (85); and the other end of the drive shaft (86) is fixedly assembled with a propeller (87).

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