Wave energy power generation device-breakwater integrated system

Abstract

The invention discloses a wave power generation device-breakwater integrated system which is applied to the fields of ocean engineering technology and renewable energy sources. The system is mainly composed of a vertical permeable gravity type breakwater and a hydraulic wave energy power generation device. The breakwater is composed of a breakwater foundation, a breakwater body and a breakwater top, the breakwater foundation comprises an exposed foundation bed and a layered steel caisson, the breakwater body is supported by a plurality of stand columns, and the breakwater top is provided with a top cabin and a breast wall. The hydraulic wave energy power generation device is arranged on the wave facing side of the breakwater and can convert wave energy into electric energy. According to the vertical permeable gravity type breakwater, the wave energy power generation device is integrated on the wave facing side of the vertical permeable gravity type breakwater, so that the wave load of the whole breakwater is reduced, and the wave energy power generation device can be used for generating power.

Description

Technical Field

[0001] The invention belongs to the field of marine engineering technology and marine renewable energy utilization, and specifically relates to a wave energy power generation device-breakwater integrated system. Background Art

[0002] Breakwaters are designed to resist the impact of waves on ports, prevent waves from directly invading the port, have wave-breaking functions, and ensure that the water surface in the port remains relatively stable. The main functions of breakwaters include: 1. Creating a calm working environment, improving the safety of ship berthing and loading and unloading operations, and protecting other engineering structures in the harbor. 2. Breakwaters can also reduce the entry of silt, reduce silt accumulation in the port, and ensure water depth. With the continuous exploration of the deep sea by humans, the construction of ports and cofferdams has shifted to areas with deep water and larger waves. In addition, in the sea area of ​​artificial aquaculture cages, breakwaters not only need to have good wave-breaking performance, but also require good water exchange functions on both sides to ensure the water quality and ecological balance of the waters in the port.

[0003] According to the cross-sectional structural form, breakwaters can be divided into slope type, vertical type, mixed type and special breakwaters. Special breakwaters use the characteristics that wave energy is mainly concentrated in the surface of the water body (wave theory research and experiments show that most of the wave energy is concentrated in the surface of the water body, and 90% and 98% of the wave energy are concentrated in the water layer depth range of 2 times and 3 times the wave height below the water surface, respectively). Special structural types are used to adapt to the distribution characteristics of wave energy and offset the surface wave load. Typical special breakwaters include air-permeable, floating, pneumatic and hydraulic breakwaters. Breakwaters come in various forms, but their core function is to prevent waves from directly invading the port, have wave-breaking functions, and keep the water surface in the port relatively stable. At present, traditional breakwaters mainly use powerful structures to resist the huge wave loads, or use special designs to dissipate wave energy. If the huge wave energy can be effectively utilized, it can not only reduce the wave load borne by the breakwater and extend its service life, but also improve the comprehensive economic benefits of the breakwater. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes an integrated system of a wave energy power generation device and a breakwater. The system integrates a wave energy power generation device on the wave-facing side of a vertical open-air gravity breakwater, which not only reduces the wave load on the entire breakwater, but also can use the wave energy power generation device to generate electricity, thereby improving the comprehensive economic benefits of the breakwater.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wave energy power generation device-breakwater integrated system, comprising:

[0007] The vertical hollow gravity breakwater comprises a foundation, a body and a crest arranged from bottom to top, wherein the foundation comprises a base bed and a layered steel caisson, and the layered steel caisson is arranged on the base bed; the body comprises a plurality of columns, and the crest comprises a top cabin and a breast wall, wherein the plurality of columns are fixed on the top of the layered steel caisson, the top cabin is arranged on the top of the plurality of columns, and the breast wall is arranged on the top of the top cabin;

[0008] A hydraulic wave energy power generation device is arranged on the wave-facing side of the vertical open-air gravity breakwater, and the hydraulic wave energy power generation device converts the wave energy on the wave-facing side into electrical energy.

[0009] As described above, the wave energy power generation device-breakwater integrated system, further, the base bed is cast into blocks using reinforced concrete, the layered steel caisson includes multiple layers of stacked steel caissons, and the layered steel caisson has multiple ballast tanks for containing ballast, and the ballast is seawater, and the ballast tanks are controlled to inject or discharge seawater through ballast equipment.

[0010] As described above, in the wave energy power generation device-breakwater integrated system, further, the plurality of columns are circular columns, and the two ends of the circular columns are respectively connected to the layered steel caisson and the top cabin, thereby forming a hollow structure.

[0011] As described above, the wave energy power generation device-breakwater integrated system, further, the top cabin is used to arrange the wave energy hydraulic energy conversion equipment, the power conversion equipment and the ballast equipment.

[0012] The wave energy power generation device-breakwater integrated system as described above, further, the hydraulic wave energy power generation device includes a hydraulic cylinder, an upper support of the hydraulic cylinder, an eagle-type wave-absorbing float and a wave-absorbing float support seat, the wave-absorbing float support seat is arranged on the column of the embankment body, the eagle-type wave-absorbing float is hinged to the wave-absorbing float support seat through a support arm, the upper support of the hydraulic cylinder is arranged on the slope of the top cabin of the embankment body, the piston rod end of the hydraulic cylinder is hinged to the back of the eagle-type wave-absorbing float, and the middle part of the cylinder barrel of the hydraulic cylinder is hingedly mounted on the upper support of the hydraulic cylinder.

[0013] As described above, the wave energy power generation device-breakwater integrated system, further, the cylinder barrel of the hydraulic cylinder is provided with a pair of one-way valves, when the hydraulic cylinder is reciprocated to pull and compress, oil is sucked from the oil tank through the pair of one-way valves and pumped into the high-pressure accumulator.

[0014] As described above, in the wave energy power generation device-breakwater integrated system, further, the eagle-type wave absorbing floating body support seat is arranged at a distance of 2-3 times the wave height from the water surface.

[0015] The wave energy power generation device-breakwater integrated system as described above, further, the integrated system is configured as a single module, a plurality of groups of the single modules are spliced ​​into a breakwater, or the entire breakwater is constructed in one piece at a port.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The wave energy power generation device-breakwater integrated system of the present invention installs the wave energy power generation device on the upright open-air gravity breakwater. The wave energy power generation device not only has the function of wave dissipation, but also can reduce the load of waves on the breakwater structure, thereby extending the service life of the breakwater structure.

[0018] 2. The breakwater foundation of the present invention adopts layered steel caissons as ballast water tanks, which increases the floating and diving functions of the gravity breakwater, thereby facilitating rapid deployment.

[0019] 3. The hinged installation point of the wave energy absorbing floating body of the present invention is in an area 2-3 times the wave height from the water surface. By deploying the Eagle-type wave energy power generation device, wave reduction and power generation are achieved simultaneously, effectively overcoming the problem of strong wave reflection in front of the embankment of traditional gravity breakwaters.

[0020] 4. The wave energy power generation device installed in the present invention is not only used to reduce waves, but also has the function of generating electricity, and can provide power support for remote islands and reefs and offshore facilities, thereby improving the economic benefits of the entire integrated system.

[0021] 5. The breakwater of the present invention adopts a permeable structure design, so that both sides of the breakwater have a good water exchange function, thereby ensuring the water quality and ecology of the harbor waters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a top view of the integrated construction and layout of the wave energy power generation device-breakwater integrated system in the embodiment of the present invention at the port;

[0024] Figure 2 is a side view of a wave energy power generation device-breakwater integrated system in an embodiment of the present invention;

[0025] Figure 3 This is a diagram showing that the Eagle-type wave-absorbing floating body of the wave energy power generation device-breakwater integrated system in an embodiment of the present invention is in a horizontal position;

[0026] Figure 4 This is a diagram showing a wave energy power generation device-breakwater integrated system eagle-type wave absorbing floating body at a wave crest position in an embodiment of the present invention;

[0027] Figure 5 This is a diagram of a wave energy power generation device-breakwater integrated system eagle-type wave absorbing floating body in the trough position in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of a single module of a wave energy power generation device-breakwater integrated system in an embodiment of the present invention in a floating and towing state;

[0029] Figure 7 It is a schematic diagram of a wave energy power generation device-breakwater integrated system composed of several single modules of a wave-breaking cofferdam project in an embodiment of the present invention;

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Bench bed; 2. Layered steel caisson; 3. Circular column; 4. Top cabin; 5. Breast wall; 6. Hydraulic cylinder; 7. Upper support of hydraulic cylinder; 8. Eagle-type wave-absorbing float; 9. Support seat of wave-absorbing float. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] Example:

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of the embodiments of the present invention are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. In addition, unless otherwise clearly defined and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 2 As shown, the present invention shows an integrated system of a wave energy power generation device and a breakwater, which is composed of an upright hollow gravity breakwater and a hydraulic wave energy power generation device.

[0036] The foundation of the vertical open-air gravity breakwater consists of a base bed 1 and a layered steel caisson 2. The base bed 1 is located at the bottom and is made of reinforced concrete blocks, forming the gravity foundation of the entire integrated system. The layered steel caisson 2 is placed above the base bed 1 and has the function of a ballast tank. By adjusting the amount of ballast water in the layered steel caisson 2, the integrated system can float up to a towing state or dive down to a working state, such as Figure 6 As shown, it is convenient for the rapid transportation and deployment of the integrated system. The top of the levee is composed of a top cabin 4 and a breast wall 5. The top cabin 4 is used to install and arrange various equipment, including wave energy hydraulic energy conversion equipment, power conversion equipment and ballast equipment. The breast wall 5 is located above the top cabin 4 and is used to prevent large waves from eroding and crossing the breakwater. The top of the levee and the foundation are connected by a plurality of circular columns 3 to form the levee body of the breakwater, forming a permeable structure, ensuring a good water exchange function on both sides of the breakwater, thereby maintaining the water quality and ecological balance of the waters in the port. At the same time, the foundation, the body and the top of the levee together constitute a frame structure, which further enhances the stability of the entire breakwater structure.

[0037] The hydraulic wave energy power generation device is integrated on the breakwater. The hydraulic wave energy power generation device includes a hydraulic cylinder 6, a hydraulic cylinder upper support 7, an eagle-type wave absorbing float 8 and a wave absorbing float support seat 9. The wave absorbing float support seat 9 is arranged on the column of the embankment body. The eagle-type wave absorbing float 8 is hinged to the wave absorbing float support seat 9 through a support arm. The hydraulic cylinder upper support 7 is arranged on the slope of the top cabin 4 of the embankment body. The piston rod end of the hydraulic cylinder 6 is hinged to the back of the eagle-type wave absorbing float 8. The middle part of the cylinder barrel of the hydraulic cylinder 6 is hinged to the hydraulic cylinder upper support 7. The eagle-type wave absorbing float 8 is installed at a place with a large wave load of 2-3 times the wave height from the water surface. The cylinder barrel of the hydraulic cylinder 6 is provided with a pair of one-way valves. When the hydraulic cylinder 6 is reciprocated and lifted and compressed, oil is sucked from the oil tank through the pair of one-way valves and pumped into the high-pressure accumulator. In the reciprocating motion of the hydraulic cylinder 6, the wave energy hydraulic energy conversion equipment and the power conversion equipment are used to convert and utilize energy.

[0038] When there are no waves on the sea surface, the wave-absorbing float is in a horizontal position. Figure 3 When there are waves on the sea surface, the wave-absorbing float will reciprocate around the hinge point driven by the waves. At the same time, the piston rod of the hydraulic cylinder 6 installed on the back of the eagle-type wave-absorbing float 8 will also perform synchronous reciprocating linear motion.

[0039] When the Eagle-type wave-absorbing floating body 8 is at the wave crest, Figure 4 As shown, the Eagle-type wave-absorbing floating body 8 rotates counterclockwise around the hinge point under the drive of the waves. The piston rod of the hydraulic cylinder 6 connected to the back of the Eagle-type wave-absorbing floating body 8 moves linearly upward, compressing the hydraulic oil in the rodless chamber of the hydraulic cylinder 6 and pumping it into the energy storage stabilizer through the oil discharge check valve to perform energy storage and voltage stabilization power generation process.

[0040] When the Eagle-type wave-absorbing floating body 8 is at the trough, Figure 5 As shown, the Eagle-type wave-absorbing floating body 8 rotates clockwise around the hinge point under the drive of the waves. The piston rod of the hydraulic cylinder 6 connected to the back of the Eagle-type wave-absorbing floating body 8 moves linearly downward accordingly. At this time, the rodless chamber of the hydraulic cylinder 6 draws oil from the low-pressure oil tank through the oil suction check valve to replenish the oil in the rodless chamber. With the action of the waves, the Eagle-type wave-absorbing floating body 8 continues to rotate clockwise and counterclockwise, thereby driving the hydraulic cylinder 6 to perform reciprocating linear motion up and down, realizing the cycle of oil suction and oil discharge.

[0041] The breakwater-wave energy integrated system of the present invention can be built in an integrated manner near an island or a port to form a permanent breakwater structure, such as Figure 1 At the same time, it can also be constructed in single modules, and multiple single modules can be spliced ​​into a temporary cofferdam wave-breaking area, such as Figure 7 shown.

[0042] One of the important functions of the present invention is the efficient and mobile deployment capability of the breakwater-wave energy integrated system. In the embankment structure of the breakwater, the present invention uses a layered steel caisson 2 as a ballast tank, and configures a ballast device on the top of the embankment to ensure the connectivity between the ballast pipeline and the ballast tank. After the integrated system is transported to the designated sea area, the ballast equipment is started and ballast water is injected into the ballast tank to achieve rapid sinking of the breakwater to the seabed and complete the deployment operation. When the breakwater needs to be maneuvered and shifted, the ballast equipment is used to discharge the seawater in the ballast tank so that the breakwater floats to a state suitable for transportation, which is convenient for rapid transfer. It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. A wave energy power generation device-breakwater integrated system, characterized in that: include: The vertical hollow gravity breakwater comprises a foundation, a body and a crest arranged from bottom to top, wherein the foundation comprises a base bed and a layered steel caisson, and the layered steel caisson is arranged on the base bed; the body comprises a plurality of columns, and the crest comprises a top cabin and a breast wall, wherein the plurality of columns are fixed on the top of the layered steel caisson, the top cabin is arranged on the top of the plurality of columns, and the breast wall is arranged on the top of the top cabin; A hydraulic wave energy power generation device is arranged on the wave-facing side of the vertical open-air gravity breakwater, and the hydraulic wave energy power generation device converts the wave energy on the wave-facing side into electrical energy.

2. The wave energy power generation device-breakwater integrated system according to claim 1 is characterized in that: The base bed is cast into blocks using reinforced concrete. The layered steel caisson includes multiple layers of stacked steel caissons. The layered steel caisson has multiple ballast tanks for containing ballast. The ballast is seawater. The ballast equipment is used to control the injection or discharge of seawater into or from the ballast tanks.

3. The wave energy power generation device-breakwater integrated system according to claim 1, characterized in that: The multiple columns are circular columns, and both ends of the circular columns are respectively connected to the layered steel caisson and the top cabin, so as to form a hollow structure.

4. The wave energy power generation device-breakwater integrated system according to claim 1, characterized in that: The top cabin is used to arrange wave energy hydraulic energy conversion equipment, power conversion equipment and ballast equipment.

5. The wave energy power generation device-breakwater integrated system according to claim 1, characterized in that: The hydraulic wave energy power generation device comprises a hydraulic cylinder, an upper support of the hydraulic cylinder, an eagle-type wave-absorbing float and a wave-absorbing float support seat, wherein the wave-absorbing float support seat is arranged on a column of the embankment body, the eagle-type wave-absorbing float is hinged to the wave-absorbing float support seat through a support arm, the upper support of the hydraulic cylinder is arranged on the slope of the top cabin of the embankment body, the piston rod end of the hydraulic cylinder is hinged to the back of the eagle-type wave-absorbing float, and the middle part of the cylinder barrel of the hydraulic cylinder is hingedly mounted on the upper support of the hydraulic cylinder.

6. The wave energy power generation device-breakwater integrated system according to claim 1, characterized in that: The cylinder barrel of the hydraulic cylinder is provided with a pair of one-way valves. When the hydraulic cylinder is reciprocated and lifted and compressed, oil is sucked from the oil tank through the pair of one-way valves and pumped into the high-pressure accumulator.

7. The wave energy power generation device-breakwater integrated system according to claim 5, characterized in that: The eagle-type wave-absorbing floating body support seat is arranged at a distance of 2 to 3 times the wave height from the water surface.

8. The wave energy power generation device-breakwater integrated system according to claim 1, characterized in that: The integrated system is configured as a single module, and a plurality of groups of the single modules are spliced ​​together to form a breakwater, or the entire breakwater is constructed in one piece at a port.

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