Semi-submersible floating type offshore photovoltaic power generation platform

Abstract

The utility model provides a semi-submersible floating type offshore photovoltaic power generation platform. The semi-submersible floating type offshore photovoltaic power generation platform comprises a photovoltaic assembly, a supporting mechanism, a truss mechanism, a semi-submersible buoy foundation, a buoy connecting pipe, a gearless anchor chain and a gravity anchor block, the truss mechanism is of a platform type structure; the photovoltaic assembly is fixedly installed above the truss mechanism through the supporting mechanism. The offshore photovoltaic power generation platform comprises six semi-submersible buoy foundations which are the same in size and arranged in a regular hexagon shape. The semi-submersible buoy foundations are connected through buoy connecting pipes. The bottom of the truss mechanism is fixedly mounted on the buoy connecting pipe; the outer side of each semi-submersible buoy foundation is provided with one gear-free anchor chain, and the other end of each gear-free anchor chain is provided with one gravity anchor block. The photovoltaic power generation platform can be constructed in a short time, the efficiency is high, the construction cost is reduced, and the relative stability of the photovoltaic power generation platform can be maintained through the gravity anchor blocks and the anchor chains.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore photovoltaic power generation, and in particular to a semi-submersible floating offshore photovoltaic power generation platform. Background Art

[0002] The working principle of offshore floating photovoltaic power generation is to fix the photovoltaic power generation components on the floating structure, and the photovoltaic components receive sunlight to generate electricity. It is a combination of photovoltaic power generation and offshore floating technology. At present, my country does not have mature offshore floating photovoltaic power generation technology, so the development of this new energy has not formed a large-scale.

[0003] The basis of floating photovoltaic power generation is a buoy or other floating structures. The floating structure has to withstand various environmental loads in the marine environment, especially wave loads and flow loads. In order to ensure the relative stability of the floating structure, a mooring device must be used to limit the horizontal drift or up and down swing of the floating structure. Under extreme environmental conditions (typhoons and severe weather), the mooring load generated by the mooring device is very large, which can easily cause damage to the floating structure or the mooring device.

[0004] Photovoltaic modules are exposed to harsh marine environments for a long time. Under the influence of marine salt spray, wave splash and marine humidity, the photovoltaic modules will be corroded, resulting in a shortened service life of the photovoltaic modules. The photovoltaic modules need to be replaced or repaired frequently, which also increases the maintenance cost of floating offshore photovoltaics and increases the research and development pressure of related technologies. Utility Model Content

[0005] In response to the technical problems raised above, a semi-submersible floating offshore photovoltaic power generation platform is provided.

[0006] The technical means adopted by the utility model are as follows:

[0007] A semi-submersible floating offshore photovoltaic power generation platform, comprising a photovoltaic assembly, a supporting mechanism, a truss mechanism, a semi-submersible buoy foundation, a buoy connecting pipe, a non-stop anchor chain and a gravity anchor block;

[0008] The photovoltaic assembly is located on the top of the offshore photovoltaic power generation platform and is used for photovoltaic power generation;

[0009] The truss mechanism is a platform structure; the photovoltaic assembly is fixedly installed above the truss mechanism through the support mechanism;

[0010] The offshore photovoltaic power generation platform comprises six semi-submerged buoy foundations of the same size arranged in a regular hexagon, the semi-submerged buoy foundations being connected to each other via the buoy connecting pipes; the bottom of the truss mechanism is fixedly mounted on the buoy connecting pipes;

[0011] A stopperless anchor chain is installed on the outside of each semi-submerged buoy foundation, and a gravity anchor block is installed at the other end of the stopperless anchor chain.

[0012] Furthermore, the photovoltaic assembly includes a photovoltaic panel, a U-shaped slot, a cable and a cable tube; the photovoltaic panel can generate electricity on both the upper and lower surfaces; the two ends of the photovoltaic panel are respectively installed in the U-shaped slot to fix the photovoltaic panel; the cable is a power transmission cable of the photovoltaic panel; the cable tube is arranged on the outside of the cable to protect the cable.

[0013] Furthermore, the support mechanism is formed by welding a seamless steel pipe and an I-beam; and the U-shaped slot is fixedly installed on the support mechanism.

[0014] Furthermore, the truss mechanism is a platform structure formed by assembling and welding seamless steel pipes of various specifications, and a working platform composed of galvanized steel grating is provided on the top of the platform structure, and the supporting mechanism is installed above the working platform.

[0015] Furthermore, in order to prevent the buoy connecting pipe from rusting and causing water ingress, the interior of the buoy connecting pipe is divided into compartments by arranging longitudinal partitions, or the interior of the buoy connecting pipe is filled with foam.

[0016] Furthermore, in order to prevent water from entering due to rust of the semi-submersible buoy foundation, the interior of the semi-submersible buoy foundation is filled with foam; a mooring eye plate is provided on the outside of the semi-submersible buoy foundation for hanging the stopless anchor chain, and reinforcing elbow plates are installed on both sides of the mooring eye plate, and transverse or longitudinal reinforcing rib plates are installed on the inner wall of the semi-submersible buoy foundation.

[0017] Furthermore, one end of the studless anchor chain is installed to the mooring eye plate through a D-type shackle and a swivel, and the other end is connected to the gravity anchor block through a D-type shackle and a swivel.

[0018] Furthermore, the gravity anchor block consists of two parts, the upper part is a reinforced concrete structure, and the lower part is a skirt board surrounded by steel plates, and the skirt board can be inserted into the seabed.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] 1. The semi-submersible floating offshore photovoltaic power generation platform provided by the utility model can be completed in a short time, with high efficiency and reduced construction costs;

[0021] 2. The semi-submersible foundation floating offshore photovoltaic power generation platform provided by the utility model has a light steel structure and gravity anchor blocks, and has a low construction cost, which can meet the needs of large-scale processing and production.

[0022] 3. The semi-submersible floating offshore photovoltaic power generation platform provided by the utility model, the gravity anchor block and the anchor chain can maintain the relative stability of the photovoltaic power generation platform, reduce the corrosion and damage to the photovoltaic panels caused by waves, salt, etc., and effectively ensure the power generation efficiency of the photovoltaic assembly.

[0023] Based on the above reasons, the utility model can be widely promoted in the field of floating offshore photovoltaic power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a three-dimensional diagram of the semi-submersible foundation floating offshore photovoltaic power generation platform described in the utility model.

[0026] Figure 2 This is a front view of the semi-submersible foundation floating offshore photovoltaic power generation platform described in the utility model.

[0027] Figure 3 It is a top view of the semi-submersible foundation floating offshore photovoltaic power generation platform described in the utility model.

[0028] Figure 4 It is a side view of the semi-submersible foundation floating offshore photovoltaic power generation platform described in the utility model.

[0029] In the figure: 1. Photovoltaic assembly; 2. Support mechanism; 3. Truss mechanism; 4. Semi-submersible buoy foundation; 5. Buoy connecting pipe; 6. Gearless anchor chain; 7. Gravity anchor block. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0037] Example 1

[0038] like Figure 1-4 As shown, the utility model provides a semi-submersible floating offshore photovoltaic power generation platform, including a photovoltaic assembly 1, a support mechanism 2, a truss mechanism 3, a semi-submersible buoy foundation 4, a buoy connecting pipe 5, a non-stop anchor chain 6 and a gravity anchor block 7;

[0039] The photovoltaic assembly 1 is located on the top of the offshore photovoltaic power generation platform and is used for photovoltaic power generation;

[0040] The truss mechanism 3 is a platform structure; the photovoltaic assembly 1 is fixedly installed above the truss mechanism 3 through the support mechanism 2;

[0041] The offshore photovoltaic power generation platform comprises six semi-submerged buoy foundations 4 of the same size arranged in a regular hexagon, and the semi-submerged buoy foundations 4 are connected to each other through the buoy connecting pipes 5; the bottom of the truss mechanism 3 is fixedly installed on the buoy connecting pipes 5;

[0042] A non-stop anchor chain 6 is installed on the outside of each of the semi-submersible buoy foundations 4 , and a gravity anchor block 7 is installed at the other end of the non-stop anchor chain 6 .

[0043] Furthermore, the photovoltaic assembly 1 includes a photovoltaic panel, a U-shaped slot, a cable and a cable tube; the photovoltaic panel can generate electricity on both the upper and lower surfaces; the two ends of the photovoltaic panel are respectively installed in the U-shaped slot to fix the photovoltaic panel; the cable is a power transmission cable of the photovoltaic panel; the cable tube is arranged outside the cable to protect the cable.

[0044] Furthermore, the support mechanism 2 is formed by welding a seamless steel pipe and an I-beam; and the U-shaped slot is fixedly installed on the support mechanism 2.

[0045] Furthermore, the truss mechanism 3 is a platform structure formed by assembling and welding seamless steel pipes of various specifications. The top of the platform structure is provided with a working platform composed of galvanized steel gratings. The supporting mechanism 2 is installed above the working platform. The provision of the working platform can facilitate the staff to install or maintain the photovoltaic assembly 1.

[0046] Furthermore, in order to prevent the buoy connecting pipe 5 from rusting and causing water ingress, the interior of the buoy connecting pipe 5 is divided into compartments by arranging longitudinal partitions, or the interior of the buoy connecting pipe 5 is filled with foam.

[0047] Furthermore, in order to prevent the semi-submerged buoy foundation 4 from rusting and causing water ingress, the interior of the semi-submerged buoy foundation 4 is filled with foam, and the density of the filled foam is relatively small, which can provide sufficiently large buoyancy; a mooring eye plate is arranged on the outside of the semi-submerged buoy foundation 4 for hanging the stopless anchor chain 6, and reinforcing elbow plates are installed on both sides of the mooring eye plate, and the inner wall of the semi-submerged buoy foundation 4 is installed with transverse or longitudinal reinforcing ribs.

[0048] Furthermore, during offshore construction, 1 / 2 of the semi-submersible buoy foundation 4 is below the water surface, and the remaining 1 / 2 is above the water surface.

[0049] Furthermore, one end of the stopless anchor chain 6 is installed to the mooring eye plate through a D-type shackle and a swivel, and the other end is connected to the gravity anchor block 7 through a D-type shackle and a swivel.

[0050] Furthermore, the D-type shackle, the swivel and the stopper anchor chain 6 are selected according to the mooring tension under extreme sea conditions.

[0051] Furthermore, the gravity anchor block 7 is composed of two parts, the upper part is a reinforced concrete structure, the reinforced concrete structure can withstand the corrosion of seawater salt and the erosion of seabed water flow, and the lower part is a skirt board surrounded by steel plates. The top of the skirt board has a hole to facilitate the deflation of the gravity anchor block 7 when entering the water, so that the skirt board can be inserted into the seabed, thereby ensuring that the mooring position of the gravity anchor block 7 will not move with the waves.

[0052] Furthermore, six gravity anchor blocks 7 are included, and each of the gravity anchor blocks 7 corresponds to one of the semi-submersible buoy foundations 4 .

[0053] Furthermore, during offshore construction, each of the gravity anchor blocks 7 has fixed longitude and latitude coordinates to ensure the stress state of the non-stop anchor chain 6, so as to ensure that the changes in tides will not affect the stability of the offshore photovoltaic power generation platform.

[0054] Furthermore, the height of the supporting mechanism 2 may be adjusted according to the number and arrangement of the photovoltaic panels in the photovoltaic assembly 1 .

[0055] Furthermore, in order to ensure the service life of the offshore photovoltaic power generation platform, the support mechanism 2, the truss mechanism 3, the semi-submerged buoy foundation 4 and the buoy connecting pipe 5 are all sandblasted and pre-treated with anti-corrosion paint.

[0056] Furthermore, in order to ensure the service life of the offshore photovoltaic power generation platform, a plurality of zinc blocks are welded on the semi-submersible buoy foundation 4 to slow down the corrosion rate.

[0057] Furthermore, in order to ensure the safety of ships sailing at sea at night, a plurality of solar navigation lights and searchlights are fixed on the semi-submersible buoy foundation 4 or the truss mechanism 3 .

[0058] Furthermore, in order to facilitate construction workers to perform daily maintenance on the photovoltaic assembly 1, berthing structures and ladders are provided on the semi-submersible buoy foundation 4 and the truss mechanism 3 to facilitate construction workers to get on and off the work platform by boat.

[0059] Furthermore, in order to ensure that management personnel understand the safety status of the offshore photovoltaic power generation platform, monitoring equipment such as cameras, anemometers, gyroscopes, etc. are installed on the truss mechanism 3. The monitoring equipment can transmit data to the land control center through a data collector and a signal transmitter.

[0060] Furthermore, the number of the photovoltaic assemblies 1 is determined according to the set size of the offshore photovoltaic power generation platform so that the photovoltaic assemblies 1 are evenly distributed. In order to facilitate the construction personnel to carry out maintenance on the photovoltaic assemblies 1 and reduce the wind-exposed area of ​​the photovoltaic panels, the installation inclination angle and height of the photovoltaic assemblies 1 need to be adjusted.

[0061] In practical applications, multiple semi-submersible floating offshore photovoltaic power generation platforms described in this application can be set up in the same sea area to form an array arrangement. The electricity generated by multiple floating photovoltaic platforms is aggregated to the transformer or booster station on the platform and transmitted to the land control center via submarine transmission cables.

[0062] When using the semi-submersible foundation floating offshore photovoltaic power generation platform provided by the utility model, firstly, the land construction and installation and commissioning are completed at the dock. After the commissioning is completed, the platform is loaded on board at the dock. The photovoltaic power generation platform and the gravity anchor block are transported to the construction site by a self-propelled deck barge. The non-stop anchor chain is connected with the semi-submersible buoy foundation mooring point and the gravity anchor block mooring point in advance. After the construction ship is in position at the designated location, the three gravity anchor blocks on one side are first sunk by a floating crane, and then the floating power generation platform is hoisted into the water, and finally the remaining three gravity anchor blocks are sunk, and finally the transmission cable is connected. After the construction of multiple floating photovoltaic platforms is completed, the electricity generated by the platform is collected to the transformer or booster station on the platform, and transmitted to the land control center through the submarine transmission cable.

[0063] The semi-submersible foundation floating offshore photovoltaic power generation platform provided by the utility model realizes offshore floating photovoltaic power generation, has the characteristics of overall installation at sea, and can be widely promoted in offshore sea areas.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A semi-submersible floating offshore photovoltaic power generation platform, characterized in that: It comprises a photovoltaic assembly (1), a supporting mechanism (2), a truss mechanism (3), a semi-submerged buoy foundation (4), a buoy connecting pipe (5), a non-stop anchor chain (6) and a gravity anchor block (7); The photovoltaic assembly (1) is located on the top of the offshore photovoltaic power generation platform and is used for photovoltaic power generation; The truss mechanism (3) is a platform structure; the photovoltaic assembly (1) is fixedly installed above the truss mechanism (3) via the support mechanism (2); The offshore photovoltaic power generation platform comprises six semi-submerged buoy foundations (4) of the same size arranged in a regular hexagon, wherein the semi-submerged buoy foundations (4) are interconnected via buoy connecting pipes (5); the bottom of the truss mechanism (3) is fixedly mounted on the buoy connecting pipes (5); A stopperless anchor chain (6) is installed on the outside of each of the semi-submerged buoy foundations (4), and a gravity anchor block (7) is installed at the other end of the stopperless anchor chain (6).

2. The semi-submersible floating offshore photovoltaic power generation platform according to claim 1, characterized in that: The photovoltaic assembly (1) comprises a photovoltaic panel, a U-shaped slot, a cable and a cable tube; the photovoltaic panel can generate electricity on both the upper and lower surfaces; the two ends of the photovoltaic panel are respectively installed in the U-shaped slot to fix the photovoltaic panel; the cable is a power transmission cable of the photovoltaic panel; the cable tube is arranged outside the cable to protect the cable.

3. The semi-submersible floating offshore photovoltaic power generation platform according to claim 2, characterized in that: The support mechanism (2) is formed by welding a seamless steel pipe and an I-beam; the U-shaped slot is fixedly mounted on the support mechanism (2).

4. The semi-submersible floating offshore photovoltaic power generation platform according to claim 1, characterized in that: The truss mechanism (3) is a platform structure formed by assembling and welding seamless steel pipes of various specifications. The top of the platform structure is provided with a working platform composed of galvanized steel gratings, and the support mechanism (2) is installed above the working platform.

5. The semi-submersible floating offshore photovoltaic power generation platform according to claim 1, characterized in that: In order to prevent the buoy connection pipe (5) from rusting and causing water ingress, the interior of the buoy connection pipe (5) is divided into compartments by arranging longitudinal partitions, or the interior of the buoy connection pipe (5) is filled with foam.

6. The semi-submersible floating offshore photovoltaic power generation platform according to claim 1, characterized in that: In order to prevent the semi-submerged buoy foundation (4) from rusting and causing water ingress, the interior of the semi-submerged buoy foundation (4) is filled with foam; a mooring eye plate is arranged on the outside of the semi-submerged buoy foundation (4) for hanging the non-stop anchor chain (6), and reinforcing toggle plates are installed on both sides of the mooring eye plate. The inner wall of the semi-submerged buoy foundation (4) is installed with a transverse or longitudinal reinforcing rib plate.

7. The semi-submersible floating offshore photovoltaic power generation platform according to claim 6, characterized in that: One end of the studless anchor chain (6) is mounted to the mooring eye plate via a D-shaped shackle and a swivel, and the other end is connected to the gravity anchor block (7) via a D-shaped shackle and a swivel.

8. The semi-submersible floating offshore photovoltaic power generation platform according to claim 1, characterized in that: The gravity anchor block (7) consists of two parts, the upper part is a reinforced concrete structure, and the lower part is a skirt board surrounded by steel plates, and the skirt board can be inserted into the seabed.

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