CN108716448B - Ocean Energy Comprehensive Utilization Platform - Google Patents

Abstract

The invention discloses a platform for comprehensive utilization of ocean-going energy, which comprises a circular platform, a solar cell panel laid flat on the upper surface of the circular platform, axially passing through the central through hole of the circular platform and being able to move axially along the central through hole. Sliding offshore buoys, a plurality of hollow rods uniformly arranged on the outer periphery of the circular platform along the circumference, a plurality of hollow buoys uniformly arranged on the bottom surface of the circular platform along the circumference, and a plurality of The direction is uniformly arranged on the buoy at sea and located below the hollow buoy with a horizontal axis current discharge motor, and a tail rudder arranged on the buoy at sea and below the hollow buoy. Combining solar power generation, wave power generation and ocean current power generation forms a comprehensive power generation platform that combines the three power generation systems, which improves the current problem of single power generation on the platform, and is of great significance to power generation and full utilization of ocean energy resources.

Description

Ocean Energy Comprehensive Utilization Platform

technical field

The invention relates to the technical field of ocean current power generation, in particular to an ocean energy comprehensive utilization platform.

Background technique

Existing ocean current generators can be divided into horizontal axis ocean current generators and vertical axis ocean current generators. The horizontal axis ocean current generator needs the ocean current to flow vertically through the rotating surface of the blades to obtain maximum power generation. These blades surround the same vertical rotation axis. Therefore, the ocean current passing radially through the turbine has two chances to meet the blades, which is greatly reduced. The generating power of the main engine. Moreover, most of the existing horizontal axis ocean current generators fix the device on the seabed and other deep sea areas through a large stainless steel frame, but the fastest flow velocity of the ocean current is near the sea level, and the flow velocity of the ocean current on the seabed is relatively slow, which limits it to a certain extent. The generating power of the horizontal axis ocean current generator; and the method of fixing the large-scale device on the seabed requires too high initial investment cost, and since the fixing device is erected on the bottom of the ocean, its erection location needs to be near the ocean continental shelf. The marine energy in the vast open ocean waters cannot be utilized.

The vertical axis ocean current generator is that the main shaft of the generator is perpendicular to the placement platform. Compared with the horizontal axis ocean current generator, the most obvious advantage of the vertical axis ocean current generator is that the vertical axis ocean current generator can receive incoming flows from all directions, but its It has not been able to intercept most of the energy flowing through its blades, because most of the ocean currents flow through the blades at a certain angle with the blades instead of hitting the blades vertically, so the energy of the ocean currents cannot be fully utilized, which affects the power generation of the main engine Power. Moreover, the blades on both sides are impacted by the water flow at the same time, which may cause a small force difference on both sides and fail to generate electricity.

Therefore, how to provide a power generation platform, the ocean current generator of the platform not only has the advantages of high power generation efficiency of the horizontal axis ocean current generator, but also has the advantage of the vertical axis ocean current generator being able to capture incoming currents from all sides, and the platform can combine multiple The combination of these power generation can be operated under the open ocean sea conditions, has become an important problem to be solved urgently by those skilled in the art

At present, the hydraulic turbines of the existing ocean current power generation devices in the world mainly include: the horizontal axis ocean current turbine Seaflow and SeaGen developed by the British MCT company; the multi-blade rotor turbine Rotech TidalTurbine designed by the Lunar Energy company; Successfully assembled a commercial-grade ocean current generator, establishing a leading position in ocean energy. Ted Scheidegger, CEO of Siemens Energy, said that Siemens will further promote the commercial operation of ocean current generators.

In the late 1970s, Mr. He Shijun from Zhoushan, China conducted ocean current energy development research, built a test device and obtained a power output of 6.3kW. In the early 1980s, Harbin Engineering University began to study a new type of straight blade ocean current power generation device, which achieved higher efficiency and completed the laboratory research of the 60W model in 1984, and then developed a kilowatt-level device for testing in rivers.

Since the 1990s, China has begun to plan to build ocean current energy demonstration application power stations, and has continuously supported ocean current energy in the "Eighth Five-Year Plan" and "Ninth Five-Year Plan" scientific and technological breakthroughs. Currently, Harbin Engineering University is developing a 75kW tidal current power station. Italy, in cooperation with China, has carried out a joint ocean current energy resource survey in the Zhoushan area, and plans to develop a demonstration power station with a power generation of 140kW. And our country has issued a five-year plan to develop marine energy from tides, waves and temperature differences. A $40 billion dynamic tidal power project proposed by Dutch engineers is being planned between Xiamen and Shantou. The goal is to build a dam 60 to 100 kilometers long, containing 4,000 turbines to generate 15GW of electricity.

Therefore, no matter whether it is foreign or domestic technology, various power generation platforms have not been comprehensively designed as a multi-energy utilization platform, and the existing technology is based on the power generation of ocean currents in shallow seas in coastal areas, and there has not yet been an ocean power generation platform. , and due to the dense routes near the coast and the complicated direction of ocean currents, there are still big problems in the installation of ocean current generators.

Contents of the invention

The object of the present invention is to provide a platform for comprehensive utilization of ocean-going energy that combines solar power generation, wave power generation and ocean current power generation.

In order to achieve the above-mentioned purpose, the platform for comprehensive utilization of ocean energy designed by the present invention includes a circular platform, a solar panel laid flat on the upper surface of the circular platform, axially passing through the central through hole of the circular platform and can be The central through hole slides axially on the sea buoys, a plurality of hollow rods uniformly arranged on the outer periphery of the circular platform along the circumference, a plurality of hollow buoys evenly arranged on the bottom surface of the circular platform along the circumference, and a plurality of hollow rods arranged along the circumference of the circular platform. The horizontal axis ocean current generator arranged on the offshore buoy and below the hollow buoy in the axial direction of the offshore buoy and the tail rudder arranged on the offshore buoy and below the hollow buoy, wherein each A plurality of floats that can slide radially along the hollow rod are arranged on the hollow rod along the axial direction of the hollow rod, and each of the floats is correspondingly connected to a generator.

Further, the offshore buoy includes a cylindrical body and a cylindrical extension rod arranged in the middle of the top of the cylindrical body, and the outer diameter of the cylindrical extension rod is smaller than the outer diameter of the cylindrical body; wherein, the cylindrical extension rod The outer peripheral edge of the middle part of the axial direction is provided with offshore buoy sliders, and the inner wall of the central through hole of the circular platform is provided with a circular platform slider that matches the offshore buoy slider, and the circular platform slider Both ends of the buoy are provided with sea buoy limit plates.

Further, the radial direction inside the hollow rod is provided with the same number of hollow rod slides as the number of the floats and corresponding to the installation position of the floats, each of the floats is provided with the corresponding hollow rod slide The two ends of the hollow rod slide seat are provided with hollow rod limit plates, and the float slider on each float is connected to the generator corresponding to the float through a connecting rod. connected.

Further, an internal gear is fixed in the middle part of the top surface of the cylindrical body, and at the same time, a shaft hole for installing an external gear shaft is opened in the middle part of the cylindrical protruding rod, and the shaft of the external gear is inserted into the cylindrical protruding The shaft hole of the rod and the external gear meshes with the internal gear.

Further, a chain is connected to the outer end of each hollow rod.

Compared with the prior art, the present invention has the following advantages:

1. The ocean-going energy comprehensive utilization platform of the present invention combines solar power generation, wave power generation and ocean current power generation to form a comprehensive power generation platform combining three power generation systems, which improves the problem of single power generation of the current platform, and makes full use of the power of the ocean. Energy resources are of great significance;

2. The ocean-going energy comprehensive utilization platform of the present invention adopts sliding connections at the joints. On the one hand, the generator slides up and down with the float to generate wave power; Part of the unstable phenomenon that drives the lower device to float up and down with the up and down of the wave, so as to ensure the constant and invariable position of the device below the sea surface;

3. The steering of the horizontal-axis ocean current generator of the present invention is realized by passive steering according to the impact force of the ocean current, which makes up for the shortcomings of the horizontal-axis ocean current generator that cannot receive incoming flows from various directions, and improves the power generation of the horizontal-axis ocean current generator. Power plays an important role, and the interception efficiency of ocean current energy is higher than that of the same type of ocean current generator.

Description of drawings

Fig. 1 is a structural schematic diagram of an ocean-going energy comprehensive utilization platform of the present invention;

Fig. 2 is a top view schematic diagram of Fig. 1;

Fig. 3 is a schematic cross-sectional view of the hollow rod in Fig. 1;

Figure 4 is a schematic diagram of the installation of the circular platform in Figure 1;

Fig. 5 is a schematic diagram of chain installation in Fig. 1;

FIG. 6 is a schematic diagram of the meshing structure of the cylindrical body and the cylindrical protruding rod in FIG. 1 .

The components in the figure are numbered as follows:

Offshore buoy 1, horizontal axis ocean current generator 2, tail rudder 3, cylindrical extension rod 4, hollow buoy 5, hollow rod 6, circular platform 7, cylindrical body 8, float 9, solar panel 10, chain 11, power generation Machine 12, float slider 13, hollow rod slider 14, connecting rod 15, central through hole 16, circular platform slider 17, offshore buoy slider 18, internal gear 19, external gear 20, shaft 21.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, the ocean energy comprehensive utilization platform is divided into two parts above the sea surface and below the sea surface. The part below the sea surface is a horizontal axis ocean current generator, and the above sea surface includes solar power generation and wave power generation. It includes a circular platform 7, a solar panel 10 laid flat on the upper surface of the circular platform 7, an offshore buoy 1 that axially passes through the central through hole 16 of the circular platform 7 and can slide axially along the central through hole 16, and a plurality of Hollow rods 6 evenly arranged on the outer periphery of the circular platform 7, a plurality of hollow buoys 5 evenly arranged on the bottom surface of the circular platform 7 along the circumference, and a plurality of hollow buoys 5 evenly arranged on the buoy 1 on the sea along the axial direction of the buoy 1 and located at The horizontal axis ocean current generator 2 below the hollow buoy 5 and the tail rudder 3 arranged on the offshore buoy 1 and below the hollow buoy 5, and the chain 11 connected to the outer end of each hollow rod 6 (as shown in Figure 5) , and, each hollow rod 6 is provided with a plurality of floats 9 that can slide radially along the hollow rod 6 along the axial direction of the hollow rod 6, and each float 9 is correspondingly connected to a generator 12, as shown in Figure 3 .

Wherein, the solar panel 10 installed on the circular platform 7 collects solar energy and carries out solar power generation, and the hollow buoy 5 on the bottom surface of the circular platform 7 ensures that the circular platform 7 on which the solar panel 10 is installed is always due to the buoyancy effect of the hollow buoy 5 Located above the sea surface; the outer circumference of the circular platform 7 is provided with a plurality of evenly arranged hollow rods 6 (eight hollow rods 6 are evenly arranged in this embodiment, which is enough to float this comprehensive utilization platform), and the hollow rods 6 are due to the hollow buoys 5 The buoyancy effect is always above the sea surface under normal sea conditions.

Since the horizontal axis ocean current generator needs regular inspection and maintenance every year, the ocean energy comprehensive utilization platform of the present invention adopts offshore buoys. Dive into water to a predetermined location below sea level. In this embodiment, as shown in Figure 1 again, the sea buoy 1 is a stepped buoy, comprising a cylindrical body 8 and a cylindrical extension rod 4 arranged in the middle of the top of the cylindrical body 8, and the outer diameter of the cylindrical extension rod 4 is smaller than that of the cylinder The outer diameter of the main body 8, a plurality of horizontal axis ocean current generators 2 and the rudder 3 are all arranged on the cylindrical main body 8 and located below the hollow buoy 5; as shown in FIG. Offshore buoy sliders 18 are arranged in the direction, and the inner wall of the central through hole 16 of the circular platform 7 is provided with a circular platform slider 17 matched with the offshore buoy slider 18, and both ends of the circular platform slider 17 are provided with offshore The buoy limit plate (not shown in the figure), after the cylindrical extension rod 4 is inserted into the central through hole 16, the offshore buoy slider 18 is snapped into the circular platform slide seat 17, and the offshore The sliding of the buoy slider 18 ensures that the cylindrical extension rod 4 and the circular platform 7 only move up and down (that is, in the axial direction) and cannot move in the horizontal direction.

In the same way, as shown in Figure 3 again, the radial direction inside the hollow rod 6 is provided with the same number as the float 9 and the hollow rod slide seat 14 corresponding to the installation position of the float 9, and each float 9 is provided with a corresponding hollow rod 9. The float slider 13 that rod slide seat 14 cooperates, the two ends of hollow rod slide seat 14 are all provided with hollow rod limit plate (not shown in the figure), and the float slide block 13 on each float 9 passes connecting rod 15 is connected with the generator 12 corresponding to the float 9. After the float 9 radially passes through the hollow rod 6, the float slider 13 snaps into the hollow rod slide seat 14, and the hollow rod slide seat 14 is arranged in the radial direction inside the hollow rod 6. It is ensured that the float 9 and the hollow rod 6 only move up and down (that is, in the radial direction) and cannot move in the horizontal direction.

The ocean energy comprehensive utilization platform of the present invention adopts sliding connection at the joints, that is, the offshore buoy 1 and the circular platform 7, the hollow rod 6 and the buoy 9 are all connected by sliding seats and sliders. On the one hand, the buoy 9 rises with the wave The rise and fall corresponding to the decline occur, so that the float slider 13 on the float 9 slides up and down relative to the hollow rod slider 14, and because the float slider 13 is connected with the corresponding generator 12 through the connecting rod 15, the generator 12 also slides up and down with the up and down movement of the float, so that the generator 12 can generate wave power; on the other hand, the relative sliding up and down can eliminate to the greatest extent that the part above the sea surface will drive the lower device to float up and down with the waves. Instability phenomenon, so as to ensure the constant and invariable position of the device below the sea surface.

In addition, as shown in Figure 6, an internal gear 19 is fixed at the middle part of the top surface of the cylindrical body 8, and at the same time, the middle part of the cylindrical extension rod 4 has a shaft hole for installing the shaft 21 of the external gear 20, and the shaft of the external gear 20 21 is inserted into the shaft hole of the cylindrical extension rod 4 and the external gear 20 is meshed with the internal gear 19. When the direction of the ocean current is not perpendicular to the direction of the blade of the horizontal axis ocean current generator 2, the blade is subjected to a lateral impact force of the ocean current, which will push the cylinder body 8 to rotate, because the internal gear 19 is fixed on the cylinder body 8 On the top surface, the external gear 20 matches the shaft hole of the cylindrical extension rod 4 through the shaft 21 and the internal gear 19 fits the external gear 20. When the lateral impact force of the ocean current is large, the cylindrical body 8 will drive the internal gear 19 Rotate, so as to realize the purpose of turning the cylindrical body 8, so that the direction of the blade is perpendicular to the direction of the ocean current. The steering of the horizontal-axis ocean current generator of the present invention is realized by passive steering according to the impact force of the ocean current, which makes up for the shortcomings of the horizontal-axis ocean current generator that cannot receive incoming flows from various directions, and has a certain effect on improving the power generation of the horizontal-axis ocean current generator. Important role, the interception efficiency of ocean current energy is higher than that of the same type of ocean current generator.

Due to the deep ocean depth, the cost of using a large fixed structure connected from the seabed to the sea surface is too high and the construction is difficult. The present invention adopts an anchoring method, that is, one end of the chain 11 is fixed on the outer end of the hollow rod 6, and the chain 11 The other end is connected to the anchor, the construction is simple, and the fixation is firm, so as to realize the offshore installation and greatly reduce the construction cost of the infrastructure and reduce the cost, which plays an important role in the large-scale and large-scale ocean current power generation.

The ocean energy comprehensive utilization platform of the present invention combines solar power generation, wave power generation and ocean current power generation to form a comprehensive power generation platform combining three power generation systems, which improves the problem of single power generation of the current platform, and has a great impact on power generation and full use of ocean energy resources. have important meaning. The power generated by the comprehensive utilization platform can be transmitted to land power stations or offshore oil drilling platforms through submarine cables, and part of the power can also be directly transmitted to nearby offshore positioning and climate monitoring buoys.

Claims (5)

1. a kind of ocean total energy approach platform, it is characterised in that: including circular platform (7), be laid in the circular platform (7) solar panel (10) of upper surface, axially across the circular platform (7) center through hole (16) and can be along center through hole (16) oceanographic buoy (1), multiple hollow stems being uniformly arranged along the circumference in the circular platform (7) outer peripheral edge in axial sliding (6), multiple hollow floats (5), multiple along the oceanographic buoy being uniformly arranged along the circumference in the circular platform (7) bottom surface (1) the trunnion axis ocean current hair that axial direction is uniformly arranged on the oceanographic buoy (1) and is located at below the hollow float (5) Motor (2) and the tail vane (3) for being arranged on the oceanographic buoy (1) and being located at below the hollow float (5), wherein each Axial direction on the hollow stem (6) along the hollow stem (6) is provided with and multiple can radially slide along the hollow stem (6) Float (9), each float (9) is correspondingly connected with a generator (12).

2. ocean total energy approach platform according to claim 1, it is characterised in that: the oceanographic buoy (1) includes circle The cylinder extension bar (4) of column ontology (8) and setting in cylindrical body (8) top center, and the outer diameter of the cylinder extension bar (4) Less than the outer diameter of the cylindrical body (8)；Wherein, the intermediate position outer peripheral edge axial direction setting of the cylinder extension bar (4) Have oceanographic buoy sliding block (18), center through hole (16) inner wall of the circular platform (7) is provided with and the oceanographic buoy sliding block (18) the circular platform slide (17) matched, and the both ends of the circular platform slide (17) are provided with oceanographic buoy limit Plate.

3. ocean total energy approach platform according to claim 1, it is characterised in that: hollow stem (6) inner radial Direction is provided with and the float (9) number is identical and corresponding with the float (9) installation site hollow stem slide (14), often The float sliding block (13) matched with the corresponding hollow stem slide (14) is provided on a float (9), it is described hollow The both ends of bar slide (14) are provided with hollow stem limit plate, and the float sliding block (13) on each float (9) is logical Connecting rod (15) generator (12) corresponding with the float (9) is crossed to be connected.

4. ocean total energy approach platform according to claim 2, it is characterised in that: in cylindrical body (8) top surface Between position fix an internal gear (19), meanwhile, the intermediate position of the cylinder extension bar (4) is provided with for installing external gear (20) axis hole of axis (21), the axis hole that the axis (21) of the external gear (20) is inserted into the cylinder extension bar (4) are interior and described outer Gear (20) is engaged with the internal gear (19).

5. ocean total energy approach platform according to claim 1, it is characterised in that: outside each hollow stem (6) End is connected with chain (11).