CN114802626A - Offshore photovoltaic power generation device with combined cable rod structure - Google Patents
Offshore photovoltaic power generation device with combined cable rod structure Download PDFInfo
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- CN114802626A CN114802626A CN202210469582.2A CN202210469582A CN114802626A CN 114802626 A CN114802626 A CN 114802626A CN 202210469582 A CN202210469582 A CN 202210469582A CN 114802626 A CN114802626 A CN 114802626A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
- B63B2021/203—Mooring cables or ropes, hawsers, or the like; Adaptations thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses an offshore photovoltaic power generation device with a combined cable rod structure, which mainly comprises a floating frame, a photovoltaic dome and a mooring system; the floating frame comprises V-shaped compression bars which are arranged according to a certain rule and do not intersect with each other, a guy cable for connecting two nodes, and an assembled buoyancy ball arranged in the middle of the vertical guy cable; the photovoltaic dome is arranged above the floating frame and comprises a plurality of annular inhaul cables, radial inhaul cables and a plurality of vertical pressure rods, the photovoltaic dome is tightened by applying prestress, and a solar photovoltaic panel is arranged on the slope surface of the photovoltaic dome; the mooring system comprises connecting cables for connecting two groups of floating frames and mooring cables for fixing the whole device; the photovoltaic dome is of a tension integral structure, replaces a traditional photovoltaic power generation device support with a cable-strut structure, is light in weight, strong in bearing capacity and large in deformation capacity, can cope with severe weather conditions on the sea, improves the laying area of a solar photovoltaic plate, and improves the solar energy absorption rate by fully utilizing optical refraction and reflection in a multi-monomer combined mode.
Description
Technical Field
The invention relates to the field of offshore structures and photovoltaic power generation structures, in particular to an offshore photovoltaic power generation device with a combined cable-rod structure.
Background
As is well known, the traditional land photovoltaic power station has the defect of large permanent floor area, and some photovoltaic power stations need to increase the front-back distance between the components for reducing the shielding among the photovoltaic components, so that the floor area of the whole photovoltaic power station is enlarged by two to three times. However, China has more people and less land, and land resources are extremely precious, so that the land resources for developing solar photovoltaic power stations on a large scale are rare. The shortage of land resources directly restricts the development of solar power generation technology, and the contradiction between the scarcity of land resources and the vigorous development of solar power generation is urgently solved.
In the related art, chinese patent application No. CN114228929A discloses a tension leg ocean platform for offshore photovoltaic power generation. The device comprises tension legs, platform guys, transverse guys, a movable platform, a platform buoyancy tank, oblique guys, a central upright post, an arc-shaped stay tube, a connecting node and radial guys; the arc stay tube is connected with the transverse stay cable and the oblique stay cable to form a main body tensioning integral structure. One end of each tension leg is connected with the arc-shaped supporting pipe, the other end of each tension leg is fixed on the seabed, and the residual buoyancy of the consumed part forms a triangular prism type tensioning structure. The platform floating box is connected with the transverse guy cable at the bottom through the platform guy cable, and the platform floating box is tightened through the residual buoyancy force to form a tensioning structure. The central upright post is arranged on the movable platform, and the top end of the central upright post is connected with the arc-shaped stay tube through a radial inhaul cable; the defects of the related technology are that the construction cost is too high, the construction is difficult to be carried out in a sheet mode, a large-area negative surface exists, and the photovoltaic power generation efficiency is too low.
In the related art, chinese patent publication No. CN103795328A discloses a water surface floating type intensive photovoltaic power generation device, which comprises a plurality of photovoltaic power generation units, wherein each photovoltaic power generation unit comprises a support bracket and a water surface floating device, the support bracket is fixed on the water surface floating device through a hoop, the support bracket is of a triangular frame structure, an inclined plane of the support bracket is a photovoltaic module mounting surface, and a plurality of photovoltaic modules are fixed on the photovoltaic module mounting surface. A supporting beam at the bottom of the supporting bracket is provided with a connecting buckle, and the photovoltaic power generation units are connected into a whole through the connecting buckle. The related art is not enough in that the supporting bracket structure is too simple, the supporting bracket structure is only connected through the buckle, when the supporting bracket structure is in a severe sea weather condition, the flaky device is greatly influenced by wind and waves, and the buckle and the supporting bracket are easily damaged by fatigue.
In addition, the photovoltaic power generation cable rod mechanism similar to the photovoltaic power generation cable rod mechanism that adopts on land needs to use the stand to be as supporting and through the supplementary ground that is fixed in of rope, is difficult to install on the sea, can't be applied to under the marine environment.
Therefore, the present application overcomes the drawbacks of the prior art, improves the structure thereof, and provides a new combined offshore photovoltaic power generation device for offshore photovoltaic power generation to solve the above problems.
Disclosure of Invention
The invention aims to provide an offshore photovoltaic power generation device with a combined cable-rod structure, the cable-rod structure is utilized to reduce the weight of the device, the manufacturing cost is reduced, the unit area coverage rate of a photovoltaic panel is increased through a photovoltaic dome, and the solar energy absorption rate is improved.
In order to achieve the purpose, the invention provides an offshore photovoltaic power generation device with a combined cable-rod structure. The bottom floating frame is formed by stretching and forming the cables and the rods, so that the material cost can be reduced, the weight of the device can be reduced, and a certain bearing capacity can be kept. The unit area coverage rate of the photovoltaic panel increased by the quadrangular pyramid type cable dome structure is increased, meanwhile, the multiple groups of devices are combined to form a wavy surface structure, the valley surfaces of the devices can absorb the refracted solar energy for the second time, and the solar energy absorption rate is improved.
The invention provides an offshore photovoltaic power generation device with a combined cable-pole structure, which comprises a floating frame capable of floating on the sea surface, a photovoltaic dome arranged above the floating frame, and a mooring system for fixing the integral device on the sea surface. The multiple groups of offshore photovoltaic power generation devices are wave surfaces after being combined, and the valley surfaces of the wave surfaces can improve the solar energy absorption rate through mutual refraction of the photovoltaic domes. The floating frames provide main buoyancy by using the assembled buoyancy balls, the two groups of floating frames are connected through four connecting cables on the side surfaces, the four photovoltaic domes are uniformly distributed above each floating frame in two rows and two columns, and the whole device is fixed on the sea surface through mooring cables.
The floating frame comprises nine groups of V-shaped compression bars, eighteen nodes, nine vertical inhaul cables, twelve longitudinal inhaul cables, nine assembled buoyancy balls and twelve transverse inhaul cables. Nine groups of V-shaped compression bars form an integral framework, the upper surface of the integral framework is of a Chinese character tian-shaped structure formed by nine nodes, six longitudinal inhaul cables and six transverse inhaul cables, the lower surface of the integral framework is of a corresponding Chinese character tian-shaped structure formed by nine nodes, six longitudinal inhaul cables and six transverse inhaul cables, and nine vertical inhaul cables connect nine groups of nodes which are mutually corresponding up and down. The V-shaped pressure lever consists of two hinged pressure levers, wherein the V-shaped pressure lever with an upward opening is called a forward V-shaped pressure lever, and the V-shaped pressure lever with a downward opening is called a reverse V-shaped pressure lever; nine groups of V-shaped pressure bars of the floating frame are vertical to the horizontal plane, the V-shaped pressure bars are longitudinally arranged from left to right in the sequence of forward direction, reverse direction and forward direction, the V-shaped pressure bars are transversely arranged from front to back in the sequence of reverse direction, forward direction and reverse direction, and the nine groups of V-shaped pressure bars are connected with each node through inhaul cables and are not mutually intersected in pairs.
The photovoltaic dome comprises eight circumferential pull cables, twelve radial pull cables, nine vertical compression rods, twelve radial lower pull cables, a solar photovoltaic panel, an upper end node and a lower end node; the photovoltaic dome is integrally in a quadrangular pyramid shape, four corners of the bottom of the photovoltaic dome are respectively connected to nodes corresponding to the floating frame through radial inhaul cables and radial inhaul cables, a vertical compression rod is arranged at the top of the photovoltaic dome, and two vertical compression rods are uniformly distributed on four edges of the photovoltaic dome according to the length. The solar photovoltaic panels are arranged on the four triangular side surfaces of the photovoltaic dome.
The mooring system comprises mooring cables and connecting cables, the connecting cables are connected with nodes on the side surfaces of two adjacent groups of devices, one end of each mooring cable is fixed to the sea bottom, the other end of each mooring cable is connected with a node on the outermost side of the bottom of the offshore photovoltaic power generation device, the mooring cables are integrally inclined at a certain angle, and the connecting cables used for connection are pulled up to enable two groups of adjacent floating frames to keep a certain distance.
All longitudinal guys and horizontal guys are the same length above and below the floating frame, and the middle is supported by a V-shaped pressure lever, and prestress is applied to the whole structure by reducing the length of the vertical guys, at the moment, the middle nodes connected with the horizontal guys on the upper side and the lower side are higher than the nodes on the two sides, the middle nodes connected with the horizontal guys on the middle are lower than the middle nodes on the upper side and the lower side but higher than the nodes on the two sides, and the nodes on the two sides in the middle are lower than the nodes on the two sides.
Foretell assembled buoyancy ball is installed in vertical cable middle part, and its appearance after the assembly is spherical, passes through body spout by four spherical bodies of quarter and constitutes buoyancy ball with the assembly of body slide rail, and buoyancy ball surface is equipped with anti-skidding draw-in groove, and fixed steel hoop passes through anti-skidding draw-in groove and installs in buoyancy ball surface, and fixed node is located the crossing point department of fixed steel hoop and is connected with the node through fixed cable.
The floating body is a quarter sphere comprising two planes and a curved surface, the floating body sliding groove and the floating body sliding rail are respectively arranged on the two planes, the included angle between the two planes is provided with an arc-shaped groove for penetrating through the vertical inhaul cable, the anti-skid clamping groove is composed of four round clamping grooves which are arranged in a groined shape, and four intersection points are respectively arranged on the upper hemispherical surface and the lower hemispherical surface of the floating body.
The upper end node of the top vertical compression bar is connected with the four radial inhaul cables, and the lower end node of the top vertical compression bar is connected with the four radial inhaul cables; the upper end nodes of the other eight vertical pressure rods are connected with the two radial inhaul cables and one radial inhaul cable, and the lower end nodes are connected with the two annular inhaul cables and one radial inhaul cable.
The four annular guys positioned on the same plane are connected end to form a regular quadrangle, and the outermost periphery of each photovoltaic dome and the floating frame share four nodes, namely two longitudinal guys and two transverse guys.
All the vertical guys, the longitudinal guys, the transverse guys, the annular guys, the radial guys and the radial down guys are only pulled, and all the V-shaped compression bars and the vertical compression bars are only pressed.
Compared with the related technology, the invention has the following beneficial effects:
(1) the floating frame is a special tensioning integral structure formed by tensioning a V-shaped compression bar and a plurality of cables, and the structure has larger bearing capacity, light self weight, good deformability, very large gap spacing, low shielding effect on waves and capability of coping with offshore complex climate environments;
(2) the photovoltaic dome is skillfully combined with the floating frame, and a plurality of nodes and a plurality of pull cables are shared, so that a large amount of materials are saved while the structural integrity is ensured;
(3) the whole floating frame is in a shape with a high middle and low four corners, a plurality of groups of floating frames are combined side by side to form an uneven wavy surface, a concave surface is formed between each two groups, and the light is reflected to the other surface after reaching a certain angle by the aid of the quadrangular pyramid-shaped photovoltaic dome, so that a light condensation effect is achieved;
(4) the assembled buoyancy ball is formed by assembling the four floating bodies, can be assembled under the condition of not influencing the vertical inhaul cable, has simple and practical structure and convenient and fast assembly, and has certain protection effect on the vertical inhaul cable;
(5) the standardization degree of components or parts such as cables, rods, nodes, buoyancy balls and the like is high, the components or parts can be produced in a factory, field assembly is realized, the assembly efficiency is high, the construction cost is low, and later-stage damaged parts are convenient to replace; the appearance of the offshore photovoltaic power generation device with the combined cable-pole structure enriches the types of the existing offshore photovoltaic power generation devices and widens the application range of the cable-pole structure. The concrete advantages include: low material consumption, light weight, stable structure, good deformability and high standardization degree.
Drawings
FIG. 1 is a three-dimensional schematic of the present invention;
FIG. 2 is a front view of the present invention
Fig. 3 is a three-dimensional schematic view of the floating frame of the present invention;
FIG. 4 is a three-dimensional schematic view of a photovoltaic dome of the present invention;
FIG. 5 is a three-dimensional cross-sectional view of the fabricated buoyant spheres of the present invention;
fig. 6 is a computer simulated formation view of the floating frame of the present invention;
FIG. 7 is a graph of the results of iterative calculations performed by the floating frame of the present invention;
fig. 8 is a front view of another embodiment of the present invention.
The figures are labeled as follows:
1-V-shaped pressure bar, 2-node, 3-vertical cable, 4-longitudinal cable, 5-buoyancy device, 6-transverse cable, 7-mooring cable, 8-circumferential cable, 9-radial cable, 10-vertical pressure bar, 11-radial lower cable, 12-solar photovoltaic panel, 13-upper node, 14-lower node, 15-connecting cable, 16-fixed cable, 17-floating body chute, 18-floating body, 19-anti-slip clamping groove, 20-fixed steel hoop, 21-fixed node, 22-floating body sliding rail.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1-2, the offshore photovoltaic power generation device with combined cable-pole structure provided by the invention comprises a floating frame capable of floating on the sea surface, a photovoltaic dome installed above the floating frame, and a mooring system for fixing the whole device on the sea surface. The multiple groups of offshore photovoltaic power generation devices are wave surfaces after being combined, and the valley surfaces of the wave surfaces can improve the solar energy absorption rate through mutual refraction of the photovoltaic domes. The floating frames provide main buoyancy by using assembled buoyancy balls 5, four nodes 2 on the side surfaces of the two groups of floating frames are connected through four connecting cables 15, the four photovoltaic domes are uniformly distributed above each floating frame in two rows and two columns, and the whole device is fixed on the sea surface through mooring cables 7. One end of the mooring rope 7 is fixed on the seabed, and the other end of the mooring rope is connected to the node 2 on the outermost side of the bottom of the offshore photovoltaic power generation device, the whole mooring rope is inclined at a certain angle, and the connecting rope 15 for connection is pulled up, so that a certain distance is kept between two groups of adjacent floating frames.
As shown in fig. 3, the nine groups of V-shaped compression bars 1 form an integral framework, the upper surface of the integral framework is of a structure shaped like a Chinese character 'tian' and composed of nine nodes 2, six longitudinal cables 4 and six transverse cables 6, the lower surface of the integral framework is of a structure shaped like a Chinese character 'tian' and composed of nine nodes 2, six longitudinal cables 4 and six transverse cables 6, and nine vertical cables 3 connect the nine groups of nodes 2 which are mutually corresponding up and down. The V-shaped pressure lever 1 consists of two hinged pressure levers, wherein the V-shaped pressure lever 1 with an upward opening is called a forward V-shaped pressure lever 1, and the V-shaped pressure lever 1 with a downward opening is called a reverse V-shaped pressure lever 1. Nine groups of V-shaped compression bars 1 of the floating frame are vertical to the horizontal plane, the V-shaped compression bars 1 are longitudinally arranged from left to right in the sequence of forward direction, reverse direction and forward direction, the V-shaped compression bars 1 are transversely arranged from front to back in the sequence of reverse direction, forward direction and reverse direction, and the nine groups of V-shaped compression bars 1 are connected with each node through inhaul cables and are not mutually intersected in pairs. All longitudinal guys 4 and horizontal guys 6 length about the floating frame are the same, and the centre supports with V-arrangement depression bar 1, and through reducing vertical guy 3 length to whole structure application prestressing force, the middle node 2 that the horizontal guy 6 of upper and lower both sides was connected is higher than both sides node 2 this moment, and the middle node 2 that the horizontal guy 6 of centre was connected is less than upper and lower both sides middle node 2 but is higher than both sides node 2 in the centre, both sides node 2 in the centre be less than both sides node 2 of upper and lower both sides. The assembled buoyancy ball 5 is arranged on the vertical inhaul cable 3 at the four edges of the floating frame, the shape of the assembled buoyancy ball is spherical, the ball surface is provided with a clamping groove, a plurality of ropes penetrate through the clamping groove to fix the assembled buoyancy ball 5, and all the assembled buoyancy balls 5 are positioned on the same plane.
As shown in fig. 4, the photovoltaic dome is a quadrangular pyramid, four corners of the bottom of the photovoltaic dome are respectively connected to the corresponding nodes 2 of the floating frame through a radial inhaul cable 9 and a radial inhaul cable 11, a vertical compression bar 10 is arranged at the top of the photovoltaic dome, and two vertical compression bars 10 are uniformly distributed on four edges according to the length. The solar photovoltaic panel 12 is arranged on four triangular side surfaces of the photovoltaic dome. An upper end node 13 of the top vertical compression bar 10 is connected with four radial inhaul cables 9, and a lower end node 14 is connected with four radial inhaul cables 11; the upper end nodes 13 of the other eight vertical compression bars 10 are connected with the two radial inhaul cables 9 and one radial inhaul cable 11, and the lower end nodes 14 are connected with the two circumferential inhaul cables 8 and one radial inhaul cable 11. Four circumferential guys 8 positioned on the same plane are connected end to form a regular quadrangle, and the outermost periphery of each photovoltaic dome and the floating frame share four nodes 2, two longitudinal guys 4 and two transverse guys 6.
As shown in fig. 5, the assembled buoyancy ball 5 is installed in the middle of the vertical cable 3, the assembled shape is spherical, four quarter spherical floats 18 are assembled with float slide rails 22 through float slide grooves 17 to form the buoyancy ball, anti-slip slots 19 are arranged on the surface of the buoyancy ball, the fixed steel hoop 20 is installed on the surface of the buoyancy ball through the anti-slip slots 19, and the fixed node 21 is located at the intersection of the fixed steel hoop 20 and connected with the node 2 through the fixed cable 16. The floating body 18 is a quarter sphere comprising two planes and a curved surface, the floating body sliding groove 17 and the floating body sliding rail 22 are respectively arranged on the two planes, and an arc-shaped groove for passing through the vertical inhaul cable 3 is arranged at the included angle of the two planes. The anti-skid clamping groove 19 is composed of four round clamping grooves which are arranged in a groined shape, and four intersection points are respectively arranged on the upper hemispherical surface and the lower hemispherical surface of the buoyancy sphere.
As shown in fig. 6, the left side is the structural form of the floating frame of the present invention before stretch forming, the structure is prestressed by reducing the length of the vertical guy cable 3, and the right side is the structural form after iterative computation.
As shown in fig. 7, the stresses applied to the rods and cables of the floating frame gradually converge after iteration calculation for nearly two thousand times, and the structure tends to be stable.
In the embodiment, the floating frame is formed by stretching and forming a plurality of mutually non-intersecting V-shaped compression bars and a plurality of inhaul cables, the single group of floating frame is in a shape with a high middle and two low sides, the upper node, the lower node, the left node, the right node, the upper node, the lower node, the left node, the right node, the upper node, the lower node, the left node, the lower node, the upper node, the lower. The floating frame and the photovoltaic dome share a plurality of nodes and a plurality of inhaul cables, the whole structure is still a tensioning integral structure, the weight is light, the structure has certain elasticity and impact resistance, and when the weather is severe, the mechanical damage caused by collision between the structures can be effectively reduced.
As another embodiment of the present invention, as shown in fig. 8, without changing the other embodiments,
nine groups of V-shaped compression bars 1 of the floating frame are vertical to the horizontal plane, the V-shaped compression bars 1 are longitudinally arranged from left to right in the reverse, forward and reverse order, the V-shaped compression bars 1 are transversely arranged from front to back in the forward, reverse and forward order, and the nine groups of V-shaped compression bars 1 are connected with each node through inhaul cables and are not mutually intersected in pairs. All longitudinal guys 4 and horizontal guys 6 length about the floating frame are the same, and the centre is supported with V-arrangement depression bar 1, and through reducing vertical guy 3 length to whole structure application prestressing force, the middle node 2 that the horizontal guy 6 of upper and lower both sides is connected is less than both sides node 2, and the middle node 2 that the horizontal guy 6 of centre is connected is higher than upper and lower both sides middle node 2 but is less than middle both sides node 2, middle both sides node 2 be higher than both sides node 2 of upper and lower both sides. After the floating frames are combined, convex surfaces are formed between every two groups, the upper side and the lower side of each group are lower, and the floating frames have better wind resistance.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be appreciated by those skilled in the art that the foregoing description is only illustrative of the principles of the invention and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed.
The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a marine photovoltaic power generation device of modular cable pole structure which characterized in that:
the device comprises a floating frame capable of floating on the sea surface, photovoltaic domes arranged above the floating frame and a mooring system for fixing the whole device on the sea surface, wherein a plurality of groups of offshore photovoltaic power generation devices are combined to form a wavy surface, and the valley surfaces of the marine photovoltaic power generation devices are refracted mutually through the photovoltaic domes to improve the solar energy absorption rate;
the floating frames provide main buoyancy by using assembled buoyancy balls (5), the two groups of floating frames are connected through four connecting cables (15) on the side surfaces, the four photovoltaic domes are uniformly distributed above each floating frame in two rows and two columns, and the whole device is fixed on the sea surface through mooring cables (7).
2. An offshore photovoltaic power generation unit of modular cable-strut construction as claimed in claim 1, wherein:
the floating frame comprises nine groups of V-shaped compression bars (1), eighteen nodes (2), nine vertical guys (3), twelve longitudinal guys (4), nine assembled buoyancy balls (5) and twelve transverse guys (6); nine groups of V-arrangement depression bars (1) constitute whole skeleton, and the upper surface comprises nine nodes (2), six vertical cables (4), six horizontal cable (6) and constitutes field font structure, and the lower surface comprises nine nodes (2), six vertical cables (4), six horizontal cable (6) equally and constitutes corresponding field font structure, and nine vertical cables (3) are connected nine groups of nodes (2) that correspond each other from top to bottom.
3. An offshore photovoltaic unit of modular cable-strut construction as claimed in claim 2, wherein:
the V-shaped pressure lever (1) consists of two hinged pressure levers, wherein the V-shaped pressure lever (1) with an upward opening is called a forward V-shaped pressure lever (1), and the V-shaped pressure lever with a downward opening is called a reverse V-shaped pressure lever (1); nine groups of V-shaped compression bars (1) of the floating frame are perpendicular to the horizontal plane, the V-shaped compression bars (1) are longitudinally arranged from left to right in the sequence of forward direction, reverse direction and forward direction, the V-shaped compression bars (1) are transversely arranged from front to back in the sequence of reverse direction, forward direction and reverse direction, and the nine groups of V-shaped compression bars (1) are connected with each node through inhaul cables and are mutually intersected in pairs.
4. An offshore photovoltaic power generation installation of modular cable strut construction as claimed in claim 3 wherein:
all longitudinal guy cables (4) and horizontal guy cable (6) length about the floating frame the same, the centre supports with V-arrangement depression bar (1), through reducing vertical guy cable (3) length to overall structure application prestressing force, middle node (2) that horizontal guy cable (6) of upper and lower both sides were connected this moment are higher than both sides node (2), middle node (2) that horizontal guy cable (6) of centre were connected is less than upper and lower both sides middle node (2) but is higher than middle both sides node (2), middle both sides node (2) be less than both sides node (2) of upper and lower both sides.
5. An offshore photovoltaic power generation unit of modular cable-strut construction as claimed in claim 4, wherein:
the assembled buoyancy ball (5) is arranged in the middle of the vertical inhaul cable (3), the assembled buoyancy ball is spherical in shape, four quarter-spherical floating bodies (18) are assembled with floating body sliding rails (22) through floating body sliding grooves (17) to form a buoyancy ball body, anti-skidding clamping grooves (19) are formed in the surface of the buoyancy ball body, the fixed steel hoops (20) are arranged on the surface of the buoyancy ball body through the anti-skidding clamping grooves (19), and the fixed nodes (21) are located at the intersection points of the fixed steel hoops (20) and connected with the nodes (2) through the fixed inhaul cable (16);
the anti-skidding cable pulling device is characterized in that the floating body (18) is a quarter sphere comprising two planes and a curved surface, the floating body sliding groove (17) and the floating body sliding rail (22) are respectively arranged on the two planes, an arc-shaped groove used for penetrating the vertical pulling cable (3) is formed in the included angle position of the two planes, the anti-skidding clamping groove (19) is formed by four circular clamping grooves which are arranged in a groined shape, and four intersection points are respectively arranged on the upper hemispherical surface and the lower hemispherical surface of the buoyancy sphere.
6. An offshore photovoltaic power generation unit of modular cable-strut construction as claimed in claim 5, wherein:
the photovoltaic dome comprises eight circumferential pull cables (8), twelve radial pull cables (9), nine vertical compression bars (10), twelve radial pull cables (11), a solar photovoltaic panel (12), an upper end node (13) and a lower end node (14); the photovoltaic dome is integrally in a quadrangular pyramid shape, four corners of the bottom of the photovoltaic dome are respectively connected to nodes (2) corresponding to the floating frame through a radial inhaul cable (9) and a radial inhaul cable (11), a vertical compression bar (10) is arranged at the top of the photovoltaic dome, and two vertical compression bars (10) are uniformly distributed on the four edges according to the length; the solar photovoltaic panels (12) are arranged on four triangular side surfaces of the photovoltaic dome.
7. An offshore photovoltaic power generation unit of modular cable-strut construction as claimed in claim 6, wherein:
an upper end node (13) of the top vertical compression bar (10) is connected with four radial inhaul cables (9), and a lower end node (14) is connected with four radial inhaul cables (11); the upper end nodes (13) of the other eight vertical compression bars (10) are connected with two radial inhaul cables (9) and one radial inhaul cable (11), and the lower end nodes (14) are connected with two circumferential inhaul cables (8) and one radial inhaul cable (11).
8. An offshore photovoltaic unit of modular cable-strut construction as claimed in claim 7, wherein:
four circumferential guys (8) located on the same plane are connected end to form a regular quadrangle, and the outermost periphery of each photovoltaic dome and the floating frame share four nodes (2), two longitudinal guys (4) and two transverse guys (6).
9. An offshore photovoltaic unit of modular cable-strut construction as claimed in claim 8, wherein:
the mooring system comprises mooring cables (7) and connecting cables (15), the connecting cables (15) are connected with nodes (2) on the side faces of two adjacent groups of devices, one end of each mooring cable (7) is fixed to the sea bottom, the other end of each mooring cable is connected with the node (2) on the outermost side of the bottom of the offshore photovoltaic power generation device, the mooring cables are integrally inclined at a certain angle, and the connecting cables (15) used for connection are pulled up to enable two groups of adjacent floating frames to keep a certain distance.
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| CN114802626B (en) | 2023-03-14 |
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