CN220465744U - Offshore photovoltaic power generation device and power generation system - Google Patents

Abstract

The utility model discloses an offshore photovoltaic power generation device and a power generation system, wherein the offshore photovoltaic power generation device comprises: the floating body units are arranged in a plurality of and spaced manner, the floating body units can float on the sea level, one part of the floating body units is positioned below the sea level, and the other part of the floating body units is positioned above the sea level; the first frame is arranged at the top of the floating body unit and comprises a plurality of upright posts, and each upright post is correspondingly connected and fixed with the floating body unit; the second frame is fixedly connected with the bottom surface of the floating body unit; the second frame comprises connecting rods which are distributed at intervals along the circumferential direction of the floating body units, and the connecting rods are connected with two adjacent floating body units; and a photovoltaic panel laid on the top surface of the first frame. Through adopting upper and lower frame construction design to promote the holistic atress intensity of power generation facility, can withstand the various loads of marine stormy waves and currents.

Description

Offshore photovoltaic power generation device and power generation system

Technical Field

The utility model relates to the technical field of offshore photovoltaic power generation, in particular to an offshore photovoltaic power generation device and a power generation system.

Background

Offshore photovoltaic is a brand new way of ocean energy utilization and resource development. The offshore environment is different from land, under the same illumination condition, the sea surface is open, no shielding object exists, the sunlight time is long, the radiation quantity is high, the illumination utilization efficiency of the offshore photovoltaic project is higher, and the generated energy of the offshore photovoltaic power station is obviously improved. However, the offshore solar photovoltaic power generation platform is in an open ocean water area, so that the offshore solar photovoltaic power generation platform faces a worse environmental load compared with the existing offshore solar photovoltaic power generation platform in a closed water area. The existing floating type photovoltaic power generation system for closed water areas such as inland lakes and ponds cannot resist the sea storms due to the adoption of the simple support.

Disclosure of Invention

Object of the utility model

The utility model aims to provide an offshore photovoltaic power generation device and a power generation system.

(II) technical scheme

A first aspect of the present utility model provides an offshore photovoltaic power generation device comprising:

a plurality of floating body units which are distributed at intervals, wherein the floating body units can float on the sea level, and part of the floating body units are positioned below the sea level, and the other part of the floating body units are positioned above the sea level;

the first frame is arranged at the top of the floating body unit and comprises a plurality of upright posts, and each upright post is correspondingly connected and fixed with the floating body unit;

the second frame is fixedly connected with the bottom surface of the floating body unit; the second frame comprises connecting rods which are distributed at intervals along the circumferential direction of the floating body units, and the connecting rods are connected with two adjacent floating body units;

and the photovoltaic panel is laid on the top surface of the first frame.

Further, the float unit includes a float and a connecting member;

the floating body is in a flat cube shape, and the inner cavity of the floating body is hollow;

the connecting member is fixedly connected with the floating body, two ends of the connecting member protrude out of the floating body, and the connecting member is fixedly connected with the first frame and the second frame respectively.

Further, the connecting member comprises a hollow cylinder, a first jacket and a second jacket, the cylinder penetrates through the floating body, two ends of the cylinder protrude out of the floating body, and the first jacket and the second jacket are respectively sleeved and clamped on the cylinder.

Further, the second jacket comprises a flange and a sleeve connected with the flange;

the sleeve is provided with a notch and a clamping plate, and the notch extends along the axial direction of the sleeve and penetrates through the sleeve; the clamping plates are arranged on two sides of the notch and are parallel to the notch;

when the two clamping plates are attached and locked, the sleeve is clamped on the cylinder.

Further, the connecting rod is arranged into a hollow tubular structure;

mounting plates are arranged at two ends of the connecting rod;

the periphery of the sleeve is provided with a bottom plate which extends along the axial direction of the sleeve and is arranged to be distributed at intervals along the circumferential direction of the sleeve;

the bottom plate is fixedly connected with the mounting plate through threaded fasteners, so that the connecting rods are distributed in a crisscross mode.

Further, the first frame further comprises a plurality of trusses;

the upright post is H-shaped steel; the trusses are fixedly connected with each side surface and the web plate of the upright post so as to enable the trusses to be distributed in a crisscross manner;

the upright post is inserted into the cylinder and is in interference fit with the inner cavity of the cylinder;

the inner cavity of the cylinder is provided with a sealing element, and the sealing element is filled in a gap between the upright post and the inner cavity of the cylinder so as to prevent air and water from entering the inner cavity of the cylinder;

the bottom of the cylinder is provided with a sealing cover.

Further, the photovoltaic panel is set to incline, and an inclined included angle between the photovoltaic panel and the horizontal plane is set to be 5-15 degrees;

the first frame further comprises a support piece, the support piece is connected with the top of the upright post, and the photovoltaic panel is connected with the top of the support piece;

the height of the upright post is set to be adjustable so as to adjust the size of the inclined included angle.

Further, the material of the first frame comprises high-strength steel; the second frame and the floating body are made of polyurethane or high-density polyethylene.

A second aspect of the present utility model provides an offshore photovoltaic power generation system comprising:

a plurality of offshore photovoltaic power generation devices;

and two ends of the transition connecting device are respectively connected with two adjacent offshore photovoltaic power generation devices.

Further, the transition connection device comprises:

a fixing member mounted on the first frame, the fixing member extending toward the other adjacent offshore photovoltaic power generation device;

the transition piece is provided with a first pin hole and a second pin hole which penetrate through the transition piece, a first pin shaft is arranged in the first pin hole, and a second pin shaft is arranged in the second pin hole; the axes of the first pin shaft and the second pin shaft are mutually perpendicular, the axis of the first pin shaft is horizontally arranged, and the axis of the second pin shaft is longitudinally arranged; the transition piece is rotationally connected with the fixing piece through a first pin shaft;

and two ends of the connecting rod are respectively and rotatably connected with the transition piece through a second pin shaft.

(III) beneficial effects

The technical scheme of the utility model has the following beneficial technical effects:

1. according to the embodiment of the utility model, the first frame and the second frame are respectively arranged above and below the floating body units, and the second frame connects each floating body unit which is distributed at intervals into a whole on the same horizontal plane, so that larger tensile force can be born; and the second frame and the first frame can also form an integral frame in the vertical direction through each floating body unit, so that the integral stress intensity of the offshore photovoltaic power generation device can be improved.

2. The offshore photovoltaic power generation device provided by the embodiment of the utility model can be suitable for sea areas with the water depth of about 10 meters, and can form a wind-solar co-field integrated power station with an offshore wind turbine, so that the offshore wind turbine can independently resist various loads of wind, wave and current on the sea.

3. According to the embodiment of the utility model, the first frame and the second frame are connected with the connecting member to form a whole, and the floating body is fixed on the connecting member, so that the floating body can better provide buoyancy, and the floating body is prevented from being damaged due to long-term bearing of the gravity of the first frame and the photovoltaic.

4. The first frame adopts a steel structure, and all parts such as a truss, an upright post and the like can be prefabricated in a factory, so that the construction quality is greatly ensured, and the first frame can be assembled together at a construction site; the second frame can be assembled into a whole through the threaded fastener, so that compared with a concrete floating platform, the working procedure of site construction is omitted, and the construction efficiency can be improved.

Drawings

Fig. 1 is a schematic structural view of an offshore photovoltaic power generation apparatus according to a first embodiment of the present utility model;

fig. 2 is a schematic structural view of an offshore photovoltaic power generation apparatus according to a second embodiment of the present utility model;

fig. 3 is a schematic structural view of an offshore photovoltaic power generation apparatus according to a third embodiment of the present utility model;

fig. 4 is a schematic structural view of an offshore photovoltaic power generation apparatus according to a fourth embodiment of the present utility model;

fig. 5 is a schematic structural view of an offshore photovoltaic power generation apparatus according to a fifth embodiment of the present utility model;

fig. 6 is a schematic view of a part of the structure of an offshore photovoltaic power generation device according to a sixth embodiment of the present utility model;

fig. 7 is a schematic view of a part of the structure of an offshore photovoltaic power generation device according to a seventh embodiment of the present utility model;

fig. 8 is a schematic structural view of an offshore photovoltaic power generation system according to an eighth embodiment of the present utility model;

fig. 9 is a schematic structural view of an offshore photovoltaic power generation system according to a ninth embodiment of the present utility model;

FIG. 10 is a schematic view of a transitional coupling device according to a tenth embodiment of the present utility model;

fig. 11 is a schematic structural view of an offshore photovoltaic power generation system according to an eleventh embodiment of the present utility model;

reference numerals:

an offshore photovoltaic power generation device 100 and a transition connection device 200;

a floating body unit 11, a first frame 12, a second frame 13, a photovoltaic panel 14, a mooring 15, a seal 16, anchor lines 17, anchor blocks 18;

float 111, cylinder 112, first jacket 113, second jacket 114, bottom plate 115, column 121, truss 122, support 123, connecting rod 131, mounting plate 132, tie rod 124;

a fixing member 210, a transition member 220, and a connecting rod 230.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

A first aspect of the present utility model provides an offshore photovoltaic power generation device, as shown in fig. 1-7, comprising: a floating body unit 11, a first frame 12, a second frame 13, a photovoltaic panel 14 and a mooring 15. The floating body units 11 are arranged in a plurality of and spaced manner, the floating body units 11 can float on the sea level, part of the floating body units 11 is positioned below the sea level, and the other part of the floating body units is positioned above the sea level; a first frame 12 disposed on top of the floating body unit 11, wherein the first frame 12 includes a plurality of columns 121, and each column 121 is correspondingly connected and fixed with the floating body unit 11; a second frame 13 fixedly connected to the bottom surface of the floating body unit 11; wherein the second frame 13 includes connection bars 131, the connection bars 131 are spaced apart along the circumference of the floating body units 11, and the connection bars 131 are connected with two adjacent floating body units 11; a photovoltaic panel 14 laid on the top surface of the first frame 12; and a mooring member 15 provided on a side surface of the column 121, the mooring member 15 being connected to one end of the anchor line 17, and the other end of the anchor line 17 being connected to the anchor block 18. The floating body unit 11 is positioned between the first frame 12 and the second frame 13, and the floating body unit 11 can provide buoyancy; for example, the first frame 12 may be formed of 12 truss girders to form a large rigid platform over which about 30 photovoltaic panel 14 assemblies may be disposed. For example, the floating body units 11 are distributed at intervals in the transverse direction and the longitudinal direction to form a rectangular array, the connecting rods 131 are distributed at intervals along the circumferential direction of the floating body units 11, and each floating body unit 11 distributed at intervals is connected into a whole on the same horizontal plane, so that the floating body units can bear large tensile force; the second frame 13 and the first frame 12 can also form an integral frame in the vertical direction through each floating body unit 11, so that the integral stress intensity of the offshore photovoltaic power generation device provided by the embodiment of the utility model can be improved; the offshore photovoltaic power generation device provided by the embodiment of the utility model can be suitable for sea areas with the water depth of about 10 meters, and can form a wind-solar co-field integrated power station with an offshore wind turbine, so that the offshore wind turbine can independently resist various loads of wind, wave and current on the sea. The anchor block 18 can be arranged on the bottom seabed, for example, can be a gravity anchor block of concrete, a pile anchor or a suction anchor commonly used by ships, and the like, and can be selected in a proper anchoring mode according to different water depths and submarine geological conditions; the offshore photovoltaic power generation device can be anchored in a fixed sea area by anchor ropes 17.

In some embodiments, the floating body unit 11 includes a floating body 111 and a connection member, the floating body 111 is provided in a cubic shape, and an inner cavity of the floating body 111 is provided to be hollow; the connecting member is fixedly connected with the floating body 111, two ends of the connecting member protrude out of the floating body 111, and the connecting member is fixedly connected with the first frame 12 and the second frame 13 respectively. The floating bodies 111 can be flat cubes, and the number of the floating bodies 111 in each floating body unit 11 can be multiple, so that the buoyancy can be flexibly adjusted by adjusting the number of the floating bodies 111, and the requirements of various photovoltaic modules and different sea loads can be met; for example, when the floating body unit 11 is set to be two floating bodies 111 stacked up and down, the top surface and the bottom surface of the floating body 111 are respectively provided with a matched groove or a matched convex block, and the two floating bodies 111 stacked up and down are tightly attached through the groove on the top surface and the convex block on the bottom surface; the floating body 111 has a cubic shape, and is capable of reducing vortex and turbulence generated by waves after the floating body, as compared with a cylindrical floating body. The connecting member may penetrate the floating body 111 up and down and be fixedly connected with the floating body 111, or may be made as a whole; the floating body 111 is fixedly connected with the first frame 12 and the second frame 13 through connecting members, so that the floating body 111 can provide buoyancy better, and the floating body 111 is prevented from being damaged due to long-term bearing of the gravity of the first frame 12 and the photovoltaic. The height of the floating body 111 on the sea level is controlled by designing the number of the upper and lower stacks of the floating body 111, so that the height of the first frame 12 is prevented from being excessively increased, the material consumption can be reduced, and the cost of the offshore photovoltaic power generation device is reduced. In other embodiments, the interior cavity of the float 111 may be filled with a hydrophobic material, such as polyurethane, when subjected to a greater load, which not only provides greater buoyancy to the float 111, but also enhances the strength of the float 111.

In some embodiments, the connecting member comprises a hollow cylinder 112, a first jacket 113 and a second jacket 114, the cylinder 112 penetrates through the floating body 111, two ends of the cylinder 112 protrude out of the floating body 111, and the first jacket 113 and the second jacket 114 are respectively sleeved and clamped on the cylinder 112. The cylinder 112 penetrates through the floating body 111, and the cylinder 112 and the floating body 111 can be made into a whole, and the floating body 111 can be prevented from moving up and down by clamping the cylinder 112 through the first clamping sleeve 113 and the second clamping sleeve 114.

In the exemplary embodiment, in order to better clamp the first jacket 113 and the second jacket 114 to the cylinder 112, it is preferable that the second jacket 114 includes a flange and a sleeve connected to the flange; the sleeve is provided with a notch and a clamping plate, and the notch extends along the axial direction of the sleeve and penetrates through the sleeve; the clamping plates are arranged on two sides of the notch and are parallel to the notch; when the two clamping plates are attached and locked, the sleeve is clamped on the cylinder 112. The sleeve may be provided with a slit, when two slits are provided, the second jacket 114 may be divided into two parts, the width of the slit may be set to 2-3mm, the clamping plates at two sides of the slit may be provided with mounting holes, and the bolts pass through the mounting holes, so that the sleeve is deformed to tighten the cylinder 112 when the clamping plates at two sides are forced to be attached by the pretightening force generated by screwing the nuts. Similarly, the first jacket 113 can have the same design, and the flanges of the second jacket 114 and the first jacket 113 are tightly attached to the floating body 111, so that the first jacket 113 and the second jacket 114 can limit the up-and-down movement of the floating body 111.

In some embodiments, the connecting rod 131 is provided as a hollow tubular structure; mounting plates 132 are arranged at two ends of the connecting rod 131; a bottom plate 115 is arranged on the periphery of the sleeve, the bottom plate 115 extends along the axial direction of the sleeve, and the bottom plates 115 are arranged to be distributed at intervals along the circumferential direction of the sleeve; the bottom plate 115 and the mounting plate 132 are connected and fixed by threaded fasteners, so that the connecting rods 131 are distributed in a crisscross manner. The connecting rod 131 is of a hollow tubular structure, can not provide buoyancy for water inflow, can be mainly subjected to tension and bending moment, and can be made of high-density polyethylene (HDPE) materials, so that the connecting rod 131 is corrosion-resistant; the bottom plate 115 is arranged on the periphery of the sleeve of the second jacket 114, the bottom plates 115 are uniformly distributed along the circumferential direction of the sleeve, for example, 4 bottom plates 115 are arranged on the circumferential direction of the sleeve, corresponding mounting holes can be formed in the mounting plate 132 and the bottom plates 115, bolts are inserted into the mounting holes, and the mounting plate 132 and the bottom plates 115 are locked by nuts, so that two ends of the connecting rod 131 are respectively connected and fixed with two adjacent second jackets 114, the connecting rod 131 forms an integral square array frame, and the integral stress intensity of the frame can be improved.

In some embodiments, the first frame 12 further comprises a plurality of trusses 122; the upright post 121 is H-shaped steel; the trusses 122 are fixedly connected with each side surface and the web plate of the upright post 121, so that the trusses 122 are distributed in a crisscross manner; the upright 121 extends downwards to be inserted into the cylinder 112, and the upright 121 is in interference fit with the inner cavity of the cylinder 112; the inner cavity of the cylinder 112 is provided with a sealing member 16, and the sealing member 16 fills a gap between the upright post 121 and the inner cavity of the cylinder 112 so as to prevent air and water from entering the inner cavity of the cylinder 112; the bottom of the cylinder 112 is provided with a sealing cover. Truss 122 may include an upper chord, a web member, and a lower chord, the web member being positioned between the upper chord and the lower chord in spaced apart relation; the two ends of the truss 122 and the side surfaces or webs of the two adjacent upright posts 121 can be welded and fixed, so that the truss 122 forms an integral square array frame, and the integral stress intensity of the frame can be improved. The height of the photovoltaic panel from the water surface can also be controlled by extending the height of the upright post 121 downwards, so that the height of the truss 122 is prevented from being excessively increased, the material consumption can be reduced, and the cost of the offshore photovoltaic power generation device can be reduced.

In the exemplary embodiment, in order to increase the overall stress strength of the first frame 12, the first frame 12 may further include a pull rod 124, where two ends of the pull rod 124 are respectively connected and fixed to the transversely disposed truss 122 and the longitudinally disposed truss 122, so that the pull rod 124 forms a triangle with the transversely disposed truss 122 and the longitudinally disposed truss 122 to increase the overall stability of the first frame 12. Specifically, the tie rods 124 may be removably attached to the upper cross members of the truss 122 via threaded fasteners, which facilitate transportation and installation of the entire frame structure.

Because the seawater has high salt content, the corrosion speed of the steel structure is greatly faster than that of inland areas, and the steel structure at the place where the liquid level is dry and wet is the most severely corroded, the steel structure immersed in the seawater and positioned on the sea level is required to be subjected to corrosion prevention design and treatment, so that the first frame 12 is painted with corrosion prevention paint, the cylinder 112 can be made of HDPE (high-density polyethylene) pipes, the high-molecular compound has good corrosion resistance, the gap between the upright post 121 and the inner cavity of the cylinder 112 can be filled with the sealing piece 16, the sealing piece 16 can be made of hydrophobic materials such as polyurethane, and the sealing piece 16 is filled in the gap between the upright post 121 and the inner cavity of the cylinder 112 so as to prevent air and water from entering the inner cavity of the cylinder 112; and the bottom of the cylinder 112 is provided with a sealing cover, so that seawater can be prevented from entering the inner cavity of the cylinder 112, and corrosion caused by the fact that the upright post 121 is soaked in the seawater can be avoided; the special design can realize maintenance-free steel structure in the long-term use process. The steps can be prefabricated in a factory, the HDPE pipe can be directly installed and spliced on site, the collision damage to the paint of the vertical column 121 in the site construction and installation process is reduced, and the overall anti-corrosion quality is improved.

In some embodiments, the photovoltaic panel 14 is set to be inclined, and the inclination angle between the photovoltaic panel 14 and the horizontal plane is set to be 5-15 degrees; the first frame 12 further includes a support 123, the support 123 is connected to the top of the upright 121, and the photovoltaic panel 14 is connected to the top of the support 123; the height of the upright 121 is adjustable to adjust the inclination angle. The direction in which the photovoltaic panel 14 is inclined is determined according to the latitude of the sea area in which the offshore photovoltaic power generation apparatus 100 is located, and the photovoltaic panel faces the sun for as long as possible to obtain the maximum power generation amount. The supporting piece 123 can be a hollow square tube, the weight can be reduced, the upright post 121 is H-shaped steel, a groove is formed in the web plate at the top of the upright post 121, the supporting piece 123 is embedded into the groove, and the supporting piece 123 and the upright post 121 are connected and fixed by adopting a threaded fastener; the photovoltaic panel 14 may include a mounting assembly that is secured to the support 123 by threaded fasteners, thereby securing the photovoltaic panel 14 to the support 123. The height of each row of upright posts 121 is gradually reduced or increased to form an inclined plane on the top surface of the first frame 12, and the height of the upright posts 121 is different to realize different inclination angles, so that the height from the bottom edge of the photovoltaic panel 14 to the water surface can be flexibly controlled, and the use requirements of different sea areas can be met. The inclination angle between the photovoltaic panel 14 and the horizontal plane is calculated according to the latitude of different sea areas, and the minimum inclination angle can be set to be 5 degrees in consideration of drainage and dust accumulation prevention; since the inclined angle of the wind turbine is increased greatly, the inclined angle can be set to 15 degrees at maximum.

In some embodiments, the material of the first frame 12 includes steel, for example, high-strength steel may be used to meet the strength requirement; the material of the second frame 13 and the floating body 111 includes polyurethane or high density polyethylene to achieve the anti-corrosion requirement.

A second aspect of the present utility model provides an offshore photovoltaic power generation system, as shown in fig. 8-11, comprising: a plurality of the above-described offshore photovoltaic power generation apparatuses 100; and the transition connection device 200 is connected with two adjacent offshore photovoltaic power generation devices 100 at two ends respectively, so that the two adjacent offshore photovoltaic power generation devices 100 keep different separation distances and inclination angles. The two ends of the transition connection device 200 are respectively connected with two adjacent offshore photovoltaic power generation devices 100 in a universal manner, so that free rotation in the vertical direction and the front-back direction can be realized, and the two adjacent offshore photovoltaic power generation devices 100 can be prevented from colliding.

In some embodiments, the transition connection device 200 includes: a fixing member 210 mounted on the first frame 12, the fixing member 210 extending toward the adjacent other of the offshore photovoltaic power generation apparatuses 100; the transition piece 220 is provided with a first pin hole and a second pin hole which penetrate through the transition piece, wherein a first pin shaft is arranged in the first pin hole, and a second pin shaft is arranged in the second pin hole; the axes of the first pin shaft and the second pin shaft are mutually perpendicular, the axis of the first pin shaft is horizontally arranged, and the axis of the second pin shaft is longitudinally arranged; the transition piece 220 is rotatably connected with the fixing piece 210 through a first pin shaft; and the two ends of the connecting rod 230 are respectively and rotatably connected with the transition piece 220 through a second pin shaft. The two ends of the transition piece 220 are respectively provided with a first ear plate and a second ear plate, the first ear plate and the second ear plate are mutually perpendicular, the first pin hole and the second pin hole are respectively formed in the first ear plate and the second ear plate, the stand column 121 can be provided with a fixing piece 210, the fixing piece 210 can be provided with a first hanging plate, the first hanging plate can comprise two hanging plates which are parallel and are arranged at intervals, a first through hole can be formed in the first hanging plate, the first through hole is matched with the first pin hole, the first ear plate is inserted between the two hanging plates, the two hanging plates have a limiting effect on the first ear plate, the first pin shaft is inserted into the first through hole and the first pin hole, the axis of the first pin shaft can be arranged to extend along the front and back direction and horizontally arranged, and therefore when the offshore wind and wave impact is received, the two adjacent offshore photovoltaic power generation devices 100 can be up and down between each other. The second hanging plate can be arranged at the end part of the connecting rod 230, and the second hanging plate can also comprise two hanging plates which are parallel and arranged at intervals, a second through hole can be formed in the second hanging plate, the second through hole is matched with the second pin hole, the second ear plate is inserted between the two hanging plates, the second pin shaft is inserted into the second through hole and the second pin hole, the axis of the second pin shaft can be arranged to extend along the up-down direction and longitudinally arranged, and thus when the offshore wind and wave impact is received, the two adjacent offshore photovoltaic power generation devices 100 can freely swing at random angles back and forth or left and right relative to each other, so that the offshore photovoltaic power generation devices 100 are prevented from being subjected to excessive wave loads. The connecting rod 230 may be made of round steel pipe, and through the hard connection, the two adjacent offshore photovoltaic power generation devices 100 can always maintain a reasonable distance therebetween, so as to avoid collision. Therefore, the unique universal connecting rod structure is safe, reliable, durable and maintenance-free.

When a plurality of offshore photovoltaic power generation apparatuses 100 are connected by links 230 to form a rectangular array, the mooring 15 is fixed to the side of the column 121, and the mooring 15 is located on the outer circumference of the plurality of offshore photovoltaic power generation apparatuses 100, the array of offshore photovoltaic power generation apparatuses can be anchored to a fixed sea area by anchor lines 17.

The mooring member 15 may be designed to have the same structure as the fixing member 210, i.e., the mooring member 15 may be provided with a first hanging plate, the first hanging plate may include two hanging plates disposed in parallel and at intervals, the first hanging plate may be provided with a first through hole, a first pin shaft is inserted into the first through hole, one end of the anchor rope 17 is fixed on the first pin shaft, and the other end of the anchor rope 17 is connected with the anchor block 18.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims (10)

1. An offshore photovoltaic power generation device, comprising:

a plurality of floating body units which are distributed at intervals, wherein the floating body units can float on the sea level, and part of the floating body units are positioned below the sea level, and the other part of the floating body units are positioned above the sea level;

the first frame is arranged at the top of the floating body unit and comprises a plurality of upright posts, and each upright post is correspondingly connected and fixed with the floating body unit;

the second frame is fixedly connected with the bottom surface of the floating body unit; the second frame comprises connecting rods which are distributed at intervals along the circumferential direction of the floating body units, and the connecting rods are connected with two adjacent floating body units;

and the photovoltaic panel is laid on the top surface of the first frame.

2. The offshore photovoltaic power generation device of claim 1, wherein the float unit comprises a float and a connecting member;

the floating body is in a cube shape, and the inner cavity of the floating body is hollow;

the connecting member is fixedly connected with the floating body, two ends of the connecting member protrude out of the floating body, and the connecting member is fixedly connected with the first frame and the second frame respectively.

3. The offshore photovoltaic power generation device of claim 2, wherein the connecting member comprises a hollow cylinder, a first jacket and a second jacket, the cylinder penetrates through the floating body, two ends of the cylinder protrude out of the floating body, and the first jacket and the second jacket are respectively sleeved and clamped on the cylinder.

4. An offshore photovoltaic power generation device in accordance with claim 3, wherein the second jacket comprises a flange and a sleeve connected to the flange;

the sleeve is provided with a notch and a clamping plate, and the notch extends along the axial direction of the sleeve and penetrates through the sleeve; the clamping plates are arranged on two sides of the notch and are parallel to the notch;

when the two clamping plates are attached and locked, the sleeve is clamped on the cylinder.

5. The offshore photovoltaic power generation device of claim 4, wherein the connecting rod is provided as a hollow tubular structure;

mounting plates are arranged at two ends of the connecting rod;

the periphery of the sleeve is provided with a bottom plate which extends along the axial direction of the sleeve and is arranged to be distributed at intervals along the circumferential direction of the sleeve;

the bottom plate is fixedly connected with the mounting plate through threaded fasteners, so that the connecting rods are distributed in a crisscross mode.

6. The offshore photovoltaic power generation device of claim 3, wherein the first frame further comprises a plurality of trusses;

the upright post is H-shaped steel; the trusses are fixedly connected with each side surface and the web plate of the upright post so as to enable the trusses to be distributed in a crisscross manner;

the upright post is inserted into the cylinder, and the upright post is in interference fit with the inner cavity of the cylinder.

7. An offshore photovoltaic power generation device according to claim 3, wherein the inner cavity of the cylinder is provided with a sealing member which fills the gap between the upright and the inner cavity of the cylinder to block air and water from entering the inner cavity of the cylinder;

the bottom of the cylinder is provided with a sealing cover.

8. The offshore photovoltaic power generation device of any of claims 1-7,

the photovoltaic plate is inclined, and an inclined included angle between the photovoltaic plate and the horizontal plane is set to be 5-15 degrees;

the first frame further comprises a support piece, the support piece is connected with the top of the upright post, and the photovoltaic panel is connected with the top of the support piece;

the height of the upright post is set to be adjustable so as to adjust the size of the inclined included angle.

9. An offshore photovoltaic power generation system, comprising:

a plurality of offshore photovoltaic power generation devices as claimed in any one of claims 1 to 8;

and the two ends of the transition connecting device are respectively connected with the two adjacent offshore photovoltaic power generation devices so as to ensure that the two adjacent offshore photovoltaic power generation devices keep different separation distances and inclination angles.

10. The offshore photovoltaic power generation system of claim 9, wherein the transitional coupling device comprises:

a fixing member mounted on the first frame, the fixing member extending toward the other adjacent offshore photovoltaic power generation device;

the transition piece is provided with a first pin hole and a second pin hole which penetrate through the transition piece, a first pin shaft is arranged in the first pin hole, and a second pin shaft is arranged in the second pin hole; the axes of the first pin shaft and the second pin shaft are mutually perpendicular, the axis of the first pin shaft is horizontally arranged, and the axis of the second pin shaft is longitudinally arranged; the transition piece is rotationally connected with the fixing piece through a first pin shaft;

and two ends of the connecting rod are respectively and rotatably connected with the transition piece through a second pin shaft.