Breakwater suitable for offshore floating type photovoltaic power station

Abstract

The utility model discloses a breakwater suitable for an offshore floating type photovoltaic power station, and aims to provide a breakwater which is arranged on the outer side of the photovoltaic power station to cut down waves in a sea area, so that the waves reach or are close to the wave height which can be borne by the floating type photovoltaic power station. Therefore, the wave load acting on the floating body of the photovoltaic power station is greatly reduced. The floating body modules are distributed on the outer side of the photovoltaic power station in a surrounding mode, the floating body modules float on the sea surface, and the sides, back on to the photovoltaic power station, of the floating body modules are wave facing faces; the floating body modules are connected together through the connecting devices; the anchoring device comprises an anchor and an anchor chain, and the floating body module is anchored on the seabed through the anchoring device.

Description

Technical Field

[0001] The utility model relates to the technical field of breakwaters, in particular to a breakwater suitable for an offshore floating photovoltaic power station. Background Art

[0002] As new energy will usher in a booming development, the development of photovoltaic power generation will also accelerate. The construction of a new power system with new energy as the main body is accelerating. Compared with wind power, photovoltaic power generation has a short construction period, relatively low capital investment, and a wide distribution of regions with development potential, but the demand for land is large. With the acceleration of the development of onshore photovoltaics, the land resources available for development will become less and less.

[0003] Sea-surface photovoltaics can effectively utilize the geographical advantages of rich marine resources. Due to its natural environmental advantages, marine photovoltaics have longer sunshine and will not be blocked like on land, which can significantly increase power generation. Therefore, offshore photovoltaics have great potential in the future. Offshore floating photovoltaics are becoming the third development direction after ground-based centralized photovoltaics and rooftop distributed photovoltaics.

[0004] At present, floating photovoltaics are mostly lake or reservoir floating photovoltaics, and their main structure is a pontoon + photovoltaic bracket + photovoltaic panel, and the main material of the pontoon is high-density polyethylene. At present, conventional floating photovoltaic floats cannot withstand wave heights greater than 1.5m, and the waves on the sea are generally greater than this wave height. At present, the existing technology is mainly developed for the floating photovoltaic float itself, but when the photovoltaic field area is large, the outer photovoltaic component float is subject to a larger wave load, while the inner side is subject to a smaller load. The requirements for the float are quite different, and the production cost is high.

[0005] In addition, there is an integrated floating photovoltaic structure on the market, which has a certain ability to resist wind and waves and can survive in harsh environments with wave heights of around 4m. However, this form of floating photovoltaic has high manufacturing and transportation costs due to its special design. Utility Model Content

[0006] The first purpose of the utility model is to provide a breakwater suitable for an offshore floating photovoltaic power station, which reduces the waves in the sea area by arranging the breakwater outside the photovoltaic power station so that the wave height reaches or approaches the wave height that the floating photovoltaic power station can withstand, thereby greatly reducing the wave load acting on the floating body of the photovoltaic power station.

[0007] The second purpose of the utility model is to provide a breakwater suitable for offshore floating photovoltaic power stations, which has good versatility, can be applied to photovoltaic power stations of different sizes, and can reduce production and transportation costs.

[0008] The technical solution of the utility model is:

[0009] A breakwater suitable for an offshore floating photovoltaic power station, comprising:

[0010] A plurality of floating modules are distributed around the outside of the photovoltaic power station. The floating modules float on the sea surface, and the side of the floating modules facing away from the photovoltaic power station is the wave-facing side.

[0011] A connecting device, through which the floating modules are connected together;

[0012] The anchoring device includes an anchor and an anchor chain, and the floating module is anchored to the seabed through the anchoring device. One of the schemes is suitable for a breakwater of an offshore floating photovoltaic power station, in which a plurality of floating modules are used. The floating modules are connected by a connecting device and are distributed around the outside of the photovoltaic power station to achieve the purpose of enclosing the photovoltaic power station. Therefore, it has good versatility and can be applied to photovoltaic power stations of different sizes. The floating module itself is anchored to the seabed through an anchoring device, and the waves in the sea area are reduced by the breakwater to reach or approach the wave height that a conventional floating photovoltaic power station can withstand, thereby greatly reducing the wave load acting on the floating body of the photovoltaic power station. On the other hand, the use of floating modules can effectively reduce the size of each floating module, thereby reducing the production and transportation costs.

[0013] Preferably, the wave-facing surface comprises:

[0014] The lower wave-facing surface is an inclined surface extending from top to bottom toward the outside;

[0015] The upper wave-facing surface is an arc surface, the lower part of the upper wave-facing surface is smoothly connected to the upper part of the lower wave-facing surface, and the upper part of the upper wave-facing surface extends upward. When the wave flows upward along the lower wave-facing surface, the wave is dissipated once; then, when the wave continues to flow upward along the upper wave-facing surface, the horizontal impact force is gradually changed to the vertical direction. In this way, on the one hand, the horizontal impact force of the wave on the breakwater can be reduced, and on the other hand, the wave can be dissipated twice, which effectively improves the wave dissipation effect.

[0016] Preferably, the wave-facing surface is configured as a rough surface having a wave-breaking effect, so that the wave-breaking effect can be further improved during the process of waves flowing along the wave-facing surface.

[0017] Preferably, the cross-sectional area of ​​the floating module gradually increases from top to bottom, so as to improve the stability of the floating module floating on the sea surface.

[0018] Preferably, the side of the floating module facing the photovoltaic power station is a vertical plane distributed vertically, so that the space occupied by the floating module in the direction of the photovoltaic power station can be reduced.

[0019] Preferably, the connection device includes a connection chain, and any two adjacent floating modules are connected together by the connection chain. Compared with the rigid connection between the floating modules, the present solution connects two adjacent floating modules by the connection chain, so that when the floating modules are impacted by waves, the floating modules can move relative to each other within a set range, thereby reducing the impact on the connection chain and the connection part between the connection chain and the floating module, which is conducive to preventing the connection chain and the connection part between the connection chain and the floating module from being damaged by wave impact.

[0020] Preferably, the connection device further comprises a rubber buffer block, and a rubber buffer block is arranged between any two adjacent floating modules, and the rubber buffer block is fixed on the side wall of the floating module. When the floating module is impacted by waves, the rubber buffer block can buffer between the two floating modules to prevent the floating modules from colliding with each other and being damaged.

[0021] Preferably, the floating module is a reinforced concrete structure, and a closed cavity is provided inside the floating module, so that the manufacturing cost of the floating module can be reduced on the one hand, and the corrosion resistance and overall structural strength of the floating module can be ensured on the other hand, thereby extending the service life of the floating module.

[0022] Preferably, some anchoring devices have multiple anchor chains and one anchor, and multiple anchor chains share one anchor, and a part of the anchor chains of the anchoring device is connected to one floating module, and another part of the anchor chains is connected to another floating module that is distributed in a connected manner. Multiple anchor chains share one anchor, which can reduce the number of anchors and reduce costs.

[0023] Preferably, the same floating module is anchored on the seabed by multiple anchoring devices, some of which restrict the floating module from moving into the photovoltaic power station, and other anchoring devices restrict the floating module from moving away from the photovoltaic power station. In this way, the breakwater is prevented from being displaced too much and damaging the offshore photovoltaic power station.

[0024] The beneficial effects of the utility model are:

[0025] First, by arranging breakwaters outside the photovoltaic power station, the waves in the sea area can be reduced to or close to the wave height that the floating photovoltaic power station can withstand, thereby greatly reducing the wave load acting on the floating body of the photovoltaic power station.

[0026] Secondly, it has good versatility and can be used in photovoltaic power stations of different sizes, and can reduce production and transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a top view of a breakwater suitable for an offshore floating photovoltaic power station in practical application of the utility model.

[0028] Figure 2The utility model is a schematic diagram of a cross-sectional structure of a breakwater suitable for an offshore floating photovoltaic power station.

[0029] Figure 3 It is a partial top view of a breakwater suitable for an offshore floating photovoltaic power station according to the utility model.

[0030] In the figure:

[0031] Floating body module 1, wave-facing surface 1.1, lower wave-facing surface 1.2, upper wave-facing surface 1.3;

[0032] Photovoltaic power station 2;

[0033] Anchoring device 3, anchor 3.1, anchor chain 3.2. DETAILED DESCRIPTION

[0034] Specific embodiment 1, as Figure 1 , Figure 2 , Figure 3 As shown, a breakwater suitable for an offshore floating photovoltaic power station includes a plurality of floating modules 1, a connecting device and an anchoring device 3. The plurality of floating modules 1 are distributed around the outside of the photovoltaic power station 2 to achieve the purpose of enclosing the photovoltaic power station. The floating modules 1 float on the sea surface, and the side of the floating modules 1 facing away from the photovoltaic power station is the wave-facing surface 1.1. The floating modules 1 are connected together by a connecting device. The anchoring device 3 includes an anchor 3.1 and an anchor chain 3.2. The floating module 1 is anchored on the seabed by the anchoring device 3.

[0035] In this embodiment, a breakwater suitable for an offshore floating photovoltaic power station adopts a plurality of floating modules 1. Each floating module 1 is connected by a connecting device and is distributed around the outside of the photovoltaic power station to achieve the purpose of enclosing the photovoltaic power station. Therefore, it has good versatility and can be applied to photovoltaic power stations of different sizes. The floating module 1 itself is anchored to the seabed by an anchoring device 3, and the waves in the sea area are reduced by the breakwater to reach or approach the wave height that a conventional floating photovoltaic power station can withstand, thereby greatly reducing the wave load acting on the floating body of the photovoltaic power station. On the other hand, the use of the floating module 1 can effectively reduce the size of each floating module 1, thereby reducing the production and transportation costs.

[0036] Specific embodiment 2, as Figure 1 , Figure 2 , Figure 3 As shown, a breakwater suitable for an offshore floating photovoltaic power station includes a plurality of floating modules 1, a connecting device and an anchoring device 3.

[0037] The floating module 1 floats on the sea surface. A plurality of floating modules 1 are distributed around the outside of the photovoltaic power station 2 to achieve the purpose of enclosing the photovoltaic power station. In this embodiment, the floating module 1 is an overall long strip. Of course, it should be noted that the overall shape of the floating module 1 can be made as needed, for example, the overall shape of the floating module 1 is a block or column or other special shape.

[0038] Each floating module 1 is connected together by a connecting device. The connecting device includes a connecting chain. Any two adjacent floating modules 1 are connected together by a connecting chain. Compared with the rigid connection between the floating modules 1, this embodiment connects two adjacent floating modules 1 by a connecting chain. In this way, when the floating modules 1 are impacted by waves, each floating module 1 can move relative to each other within a set range, thereby reducing the impact on the connecting chain and the connection part between the connecting chain and the floating module 1, which is beneficial to avoid the connection chain and the connection part between the connecting chain and the floating module 1 being damaged by wave impact. In this embodiment, there are multiple connecting chains of the same connecting device, and any two adjacent floating modules 1 are connected together by multiple connecting chains of the same connecting device.

[0039] Of course, it should be noted that the connection device may also be a rigid steel connection piece, and the steel connection piece is connected to the floating body module 1 as a whole through bolts.

[0040] The anchoring device 3 includes an anchor 3.1 and an anchor chain 3.2. The floating module 1 is anchored on the seabed by the anchoring device 3. The anchors include drag anchors, suction anchors, pile anchors, etc., which need to be selected according to the specific geology and breakwater characteristics.

[0041] The side of the floating module 1 facing away from the photovoltaic power station is the wave-facing surface 1.1. The wave-facing surface 1.1 includes a lower wave-facing surface 1.2 and an upper wave-facing surface 1.3. The lower wave-facing surface 1.2 is an inclined surface extending from top to bottom toward the outside. The inclination angle of the lower wave-facing surface 1.2 is 20-60 degrees. The upper wave-facing surface 1.3 is an arc surface, the lower part of the upper wave-facing surface 1.3 is smoothly connected to the upper part of the lower wave-facing surface 1.2, and the upper part of the upper wave-facing surface 1.3 extends upward. In this embodiment, the upper part of the upper wave-facing surface 1.3 is vertically distributed. In the process of the wave flowing upward along the lower wave-facing surface 1.2, the wave is subjected to a wave-breaking effect; then, in the process of the wave continuing to flow upward along the upper wave-facing surface 1.3, the horizontal impact force is gradually changed to a vertical direction. In this way, on the one hand, the horizontal impact force of the wave on the breakwater can be reduced, and on the other hand, the wave can be subjected to a secondary wave-breaking effect, which effectively improves the wave-breaking effect.

[0042] In this embodiment, a breakwater suitable for an offshore floating photovoltaic power station adopts a plurality of floating modules 1. Each floating module 1 is connected by a connecting device and is distributed around the outside of the photovoltaic power station to achieve the purpose of enclosing the photovoltaic power station. In this way, in the actual construction of the breakwater, it can be arranged according to the size and distribution of the photovoltaic power station, so it has good versatility and can be applied to photovoltaic power stations of different sizes. The floating module 1 itself is anchored to the seabed by an anchoring device 3, and the waves in the sea area are reduced by the breakwater to reach or approach the wave height that a conventional floating photovoltaic power station can withstand, thereby greatly reducing the wave load acting on the floating body of the photovoltaic power station. On the other hand, the use of the floating module 1 can effectively reduce the size of each floating module 1, thereby reducing the production and transportation costs.

[0043] Specific embodiment three, as Figure 1 , Figure 2 , Figure 3 As shown, a breakwater suitable for an offshore floating photovoltaic power station includes a plurality of floating modules 1, a connecting device and an anchoring device 3.

[0044] The floating module 1 floats on the sea surface. A plurality of floating modules 1 are distributed around the outside of the photovoltaic power station 2 to achieve the purpose of enclosing the photovoltaic power station. In this embodiment, the floating module 1 is an overall long strip. Of course, it should be noted that the overall shape of the floating module 1 can be made as needed, for example, the overall shape of the floating module 1 is a block or column or other special shape.

[0045] In this embodiment, the floating module 1 is a reinforced concrete structure, and a closed cavity is provided inside the floating module 1. In this way, on the one hand, the manufacturing cost of the floating module 1 can be reduced, and on the other hand, the corrosion resistance and overall structural strength of the floating module 1 can be ensured, thereby extending the service life of the floating module 1.

[0046] Of course, it should be noted that the floating body module 1 can also be made of plastic and have a closed cavity.

[0047] In this embodiment, the cross-sectional area of ​​the floating module 1 gradually increases from top to bottom, so as to improve the stability of the floating module 1 floating on the sea surface.

[0048] The side of the floating module 1 facing away from the photovoltaic power station is the wave-facing surface 1.1. The wave-facing surface 1.1 includes a lower wave-facing surface 1.2 and an upper wave-facing surface 1.3. The lower wave-facing surface 1.2 is an inclined surface extending from top to bottom toward the outside. The inclination angle of the lower wave-facing surface 1.2 is 20-60 degrees. The upper wave-facing surface 1.3 is an arc surface, the lower part of the upper wave-facing surface 1.3 is smoothly connected to the upper part of the lower wave-facing surface 1.2, and the upper part of the upper wave-facing surface 1.3 extends upward. In this embodiment, the upper part of the upper wave-facing surface 1.3 is vertically distributed. In the process of the wave flowing upward along the lower wave-facing surface 1.2, the wave is subjected to a wave-breaking effect; then, in the process of the wave continuing to flow upward along the upper wave-facing surface 1.3, the horizontal impact force is gradually changed to a vertical direction. In this way, on the one hand, the horizontal impact force of the wave on the breakwater can be reduced, and on the other hand, the wave can be subjected to a secondary wave-breaking effect, which effectively improves the wave-breaking effect.

[0049] In this embodiment, the wave-facing surface 1.1 is configured as a rough surface with wave-breaking effect. In this way, the wave-breaking effect can be further improved when the waves flow along the wave-facing surface 1.1. In this embodiment, the wave-facing surface 1.1 has a plurality of grooves and protrusions.

[0050] The side of the floating module 1 facing the photovoltaic power station is a vertical plane distributed vertically. In this way, the space occupied by the floating module 1 in the direction of the photovoltaic power station can be reduced. Of course, it should be noted that the side of the floating module 1 facing the photovoltaic power station can also be set as an inclined plane distributed obliquely.

[0051] Each floating module 1 is connected together by a connecting device. The connecting device includes a connecting chain. Any two adjacent floating modules 1 are connected together by a connecting chain. Compared with the rigid connection between the floating modules 1, this embodiment connects two adjacent floating modules 1 by a connecting chain. In this way, when the floating modules 1 are impacted by waves, each floating module 1 can move relative to each other within a set range, thereby reducing the impact on the connecting chain and the connection part between the connecting chain and the floating module 1, which is beneficial to avoid the connection chain and the connection part between the connecting chain and the floating module 1 being damaged by wave impact. In this embodiment, there are multiple connecting chains of the same connecting device, and any two adjacent floating modules 1 are connected together by multiple connecting chains of the same connecting device.

[0052] In this embodiment, the connection device further includes a rubber buffer block, and a rubber buffer block is provided between any two adjacent floating modules 1, and the rubber buffer block is fixed on the side wall of the floating module 1. When the floating module 1 is impacted by waves, the two floating modules 1 can be buffered by the rubber buffer block to prevent the floating modules 1 from colliding with each other and being damaged.

[0053] In one implementation of this embodiment, a rubber buffer block is provided between any two adjacent floating modules 1 , and the rubber buffer block is fixed on the side wall of one of the floating modules 1 .

[0054] In another implementation of this embodiment, two rubber buffer blocks are provided between any two adjacent pontoon modules 1 , wherein one rubber buffer block is fixed on the side wall of one pontoon module 1 , and the other rubber buffer block is fixed on the side wall of another pontoon module 1 .

[0055] Of course, it should be noted that the connection device can also be composed of a rigid steel connection piece, and the steel connection piece and the floating body module 1 are connected as a whole by bolts.

[0056] The anchoring device 3 includes an anchor 3.1 and an anchor chain 3.2. The floating module 1 is anchored on the seabed by the anchoring device 3. The anchors include drag anchors, suction anchors, pile anchors, etc., which need to be selected according to the specific geology and breakwater characteristics.

[0057] In this embodiment, the same floating module 1 is anchored on the seabed by multiple anchoring devices 3, some of which restrict the floating module 1 from moving into the photovoltaic power station, and other anchoring devices 3 restrict the floating module 1 from moving away from the photovoltaic power station. In this way, the breakwater is prevented from being displaced too much and damaging the offshore photovoltaic power station.

[0058] In one implementation of this embodiment, the anchor chain 3.2 of the anchoring device 3 corresponds one-to-one to the anchor 3.1, and the same floating module 1 is anchored on the seabed by 8 anchoring devices 3, of which 4 anchoring devices 3 restrict the floating module 1 from moving into the photovoltaic power station, and the other 4 anchoring devices 3 restrict the floating module 1 from moving away from the photovoltaic power station.

[0059] In another implementation of this embodiment, there are multiple anchor chains 3.2 in some anchoring devices 3, and one anchor 3.1, and multiple anchor chains 3.2 share one anchor. A part of the anchor chains 3.2 of the same anchoring device 3 is connected to one floating module 1, and another part of the anchor chains 3.2 is connected to another floating module 1 that is distributed in a continuous manner. Multiple anchor chains 3.2 share one anchor, which can reduce the number of anchors and reduce costs.

[0060] In this embodiment, a breakwater suitable for an offshore floating photovoltaic power station adopts a plurality of floating modules 1. Each floating module 1 is connected by a connecting device and is distributed around the outside of the photovoltaic power station to achieve the purpose of enclosing the photovoltaic power station. In this way, in the actual construction of the breakwater, it can be arranged according to the size and distribution of the photovoltaic power station, so it has good versatility and can be applied to photovoltaic power stations of different sizes. The floating module 1 itself is anchored to the seabed by an anchoring device 3, and the waves in the sea area are reduced by the breakwater to reach or approach the wave height that a conventional floating photovoltaic power station can withstand, thereby greatly reducing the wave load acting on the floating body of the photovoltaic power station. On the other hand, the use of the floating module 1 can effectively reduce the size of each floating module 1, thereby reducing the production and transportation costs.

[0061] The above description is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A breakwater suitable for an offshore floating photovoltaic power station, comprising: A plurality of floating modules are distributed around the outside of the photovoltaic power station. The floating modules float on the sea surface, and the side of the floating modules facing away from the photovoltaic power station is the wave-facing side. A connecting device, through which the floating modules are connected together; The anchoring device includes an anchor and an anchor chain, and the floating module is anchored on the seabed through the anchoring device.

2. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, characterized in that: The wave-facing surface comprises: The lower wave-facing surface is an inclined surface extending from top to bottom toward the outside; The upper wave-facing surface is an arc surface, the lower part of the upper wave-facing surface is smoothly connected with the upper part of the lower wave-facing surface, and the upper part of the upper wave-facing surface extends upward.

3. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, characterized in that: The wave-facing surface is configured as a rough surface having a wave-breaking effect.

4. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, 2 or 3, characterized in that: The cross-sectional area of ​​the floating body module gradually increases from top to bottom.

5. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, 2 or 3, characterized in that: The side of the floating module facing the photovoltaic power station is a vertical plane distributed vertically.

6. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, 2 or 3, characterized in that: The connection device comprises a connection chain, and any two adjacent floating modules are connected together through the connection chain.

7. A breakwater suitable for an offshore floating photovoltaic power station according to claim 6, characterized in that: The connecting device also includes a rubber buffer block. A rubber buffer block is provided between any two adjacent floating modules and the rubber buffer block is fixed on the side wall of the floating module.

8. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, 2 or 3, characterized in that: The floating module is a reinforced concrete structure, and a closed cavity is provided inside the floating module.

9. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, 2 or 3, characterized in that: Some anchoring devices have multiple anchor chains and one anchor, and the multiple anchor chains share one anchor. A part of the anchor chains of the anchoring device is connected to a floating module, and the other part of the anchor chains is connected to another floating module that is distributed in a connected manner.

10. A breakwater suitable for an offshore floating photovoltaic power station according to claim 1, 2 or 3, characterized in that: The same floating module is anchored on the seabed by multiple anchoring devices, some of which restrict the floating module from moving into the photovoltaic power station, while other anchoring devices restrict the floating module from moving away from the photovoltaic power station.

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