WO2019075655A1

WO2019075655A1 - Single pile platform-based vertical axis wind turbine and vertical-horizontal bidirectional wave energy power generation integrated structure

Info

Publication number: WO2019075655A1
Application number: PCT/CN2017/106677
Authority: WO
Inventors: 任年鑫; 马哲; 朱莹; 欧进萍; 施伟; 徐世铮; 吴鸿博
Original assignee: 大连理工大学
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2019-04-25

Abstract

A single pile platform-based vertical axis wind turbine and vertical-horizontal bidirectional wave energy power generation integrated structure comprises a vertical axis wind turbine (1), a bidirectional wave energy power generation device (2), a bidirectional hydraulic power generation system located in the bidirectional wave energy power generation device, a tower structure (3), a single pile supporting platform structure (4), and an auxiliary power transmission system. The bidirectional wave power generation device can generate power by using bidirectional motion driving hydraulic transmission systems that are relatively vertical and horizontal to the tower structure, the wave energy utilization efficiency is effectively improved, and the unit wave energy power generation cost is reduced. By arranging the relatively-horizontal motion wave energy hydraulic power generation system, the horizontal action load of a wave energy floating body on the single pile foundation tower structure can be effectively reduced, and the building cost of the tower structure can be reduced.

Description

Vertical-axis wind turbine based on single pile platform and vertical-horizontal two-directional wave energy generation

Integrated structure

Technical field

[0001] The present invention belongs to the field of marine energy utilization, and relates to a wind energy-wave energy comprehensive utilization device, and particularly relates to a vertical structure wind turbine based on a single pile platform and a vertical-horizontal two-directional wave energy power generation integrated structure.

Background technique

[0002] Offshore wind and wave energy are clean and renewable ocean energy sources. Wind turbines can be used to convert wind energy into electrical energy, and wave power plants are used to convert wave energy into electrical energy. The offshore wind energy resources on the eastern coast of China are about 750 million kilowatts, which not only has great resource potential, but also has good market conditions and is closer to China's economic center. Offshore wind energy has the advantages of saving valuable land resources, more stable wind power, larger single unit capacity of wind turbines, higher annual utilization of smaller numbers, smaller noise standards, and more convenient transportation conditions. The wave energy resources of wind-enriched waters are also abundant. However, compared with offshore wind power generation, the wave energy generation device has a low energy conversion rate and a high unit power generation cost, which limits its commercial application to a certain extent.

[0003] In the prior art, the foundation of the offshore wind power generation device mainly has a fixed support platform structure such as a single pile type, a multi-pile type, a gravity type, a jacket type, a high pile bearing platform, etc., wherein the single pile type platform uses It has the advantages of convenient construction, low construction cost and strong applicability, and is the most widely used. A wide range of wave energy generators, eclectic, a little duck-type, wave-faced, wave-powered boat, atoll, rectifier, jellyfish, soft bag, oscillating water column, multi-oscillation water column More than ten kinds of oscillating water column type, shrinking water channel type, such as wave type, pendulum type, combined with breakwater.

[0004] The disadvantages of the prior art are: The wave energy generating device has a low energy conversion rate, a high unit power generation cost, and a lack of a power generating device structural system that utilizes two-way and multi-directional relative motion to obtain wave energy. At present, there is still a lack of a marine energy integrated burst structure system that integrates a vertical axis wind turbine with a multi-directional wave energy power generation device.

technical problem

[0005] The object of the present invention is to provide a vertical and horizontal two-directional wave energy generation based on a single pile foundation structure. The device structure system improves the comprehensive utilization efficiency of wave energy.

Problem solution

Technical solution

[0006] Based on a single pile platform vertical axis wind turbine and a vertical-horizontal two-directional wave energy power generation integrated structure, including a vertical axis wind turbine 1, a two-way wave energy power generation device 2, two located in the two-way wave energy power generation device 2 To the hydraulic power generation system, tower structure 3, single pile support platform structure 4 and supporting power transmission system. The two-way hydraulic power generation system includes a vertical hydraulic system and a horizontal hydraulic system having the same structure; a plurality of two-way hydraulic power generation systems, and two-way hydraulic power generation systems are connected in parallel. The vertical axis wind turbine 1 is disposed above the tower structure 3, and the single pile support platform structure 4 is disposed below the tower structure 3. The power generation integrated structure uses the vertical axis wind turbine 1 to obtain wind energy, and obtains wave energy by using the vertical and horizontal two-directional wave energy generating device 2 provided at the water surface of the tower structure 3.

[0007] The two-way wave energy generating device 2 is connected to the slide type contact device 5 through the horizontal piston structure 7, the slide type contact device 5 is coupled with the tower structure 3, and the two-way wave energy generating device 2 is slipped. The track contact device 5 moves vertically along the tower structure 3. The horizontal piston structure 7 is connected to the slide type contact device 5, and the other end is inserted into the hydraulic cylinder 8 of the horizontal hydraulic system; the upper end of the vertical piston structure 6 is fixed to the sleeve, and the lower end of the vertical piston structure 6 is deep into the vertical hydraulic system. In the hydraulic cylinder 8, the two ends of the inclined support rod are respectively fixed to the tower structure 3 and the sleeve.

[0008] The two-way hydraulic power generation system includes two closed circuits, the first closed circuit is composed of a hydraulic cylinder 8, a first one-way inflow valve 9, a throttle valve 10, a hydraulic motor 11, a power generating device 12, a first single The outlet valve 13 is connected in series; the second closed circuit is composed of a hydraulic cylinder 8, a second one-way inlet valve 14, a throttle valve 10, a hydraulic motor 11, a power generating device 12, and a second one-way outlet valve 15. The two-way wave energy generating device 2 and the tower structure 3 can perform relative vertical movement and relative horizontal movement, thereby driving the vertical piston structure 6 and the horizontal piston structure 7 to perform compression or stretching motion. When the vertical piston structure 6 and the horizontal piston structure 7 perform a compression movement, the liquid in the hydraulic cylinder 8 is driven into the hydraulic motor 11 through the first one-way inflow valve 9 and the throttle valve 10 to drive the rotation thereof, thereby driving the power generating device 12 After the power generation, the final liquid is returned to the hydraulic cylinder 8 through the first one-way outlet valve 13; when the vertical piston structure 6 and the horizontal piston structure 7 are subjected to the stretching motion, the liquid in the hydraulic cylinder 8 is driven through the second one-way inlet valve. 14 and the throttle valve 10 enters the hydraulic motor 11 to drive its rotation, thereby causing the power generating device 12 to generate electricity, and finally the liquid is returned to the hydraulic cylinder 8 via the second one-way outlet valve 15; the throttle valve 10 and the energy storage The device 16 mainly serves to stabilize the pressure of the hydraulic system and protect the safety of the hydraulic system.

[0009] The vertical axis wind turbine 1 has 2-6 blades, which are symmetrically distributed in the center.

[0010] The slide type contact devices 5 are 4 sets, and are arranged symmetrically along the outer side of the tower structure 3.

[0011] Unlike the conventional vertical unidirectional wave energy generating device, the newly added horizontal wave energy hydraulic power generation system can not only increase the power generation of the wave energy by using the same floating body, but also effectively reduce the slide type contact device 5 to the tower. The horizontal force load of structure 3.

[0012] The specific working principle and flow of the two-way hydraulic power generation system of the wave energy device are as follows: The relative vertical movement of the two-way wave energy power generation device 2 and the tower structure 3 drives the vertical piston 6 (or relative horizontal motion) Driving the horizontal piston 7) compressing the liquid in the hydraulic tank 8 through the first one-way inlet valve 9 (or reverse 吋: entering the hydraulic motor 11 through the second one-way inlet valve 14 to drive the rotation thereof, thereby driving power generation The device 12 generates electricity, and the throttle valve 10 and the accumulator 16 mainly serve the purpose of stabilizing the pressure of the hydraulic system and protecting the safety of the hydraulic system; the roller contact device 5 is connected to the two-way wave energy generating device 2 through the horizontal piston rod 7. The two-way wave energy generating device 2 can be vertically moved relative to the tower structure 3 through the roller type contact device 5. Advantageous Effects of Invention

Beneficial effect

[0013] Advantageous Effects of the Invention:

[0014] (1) The single pile platform structure is convenient in construction, low in construction cost, and wide in application range.

[0015] (2) The wave energy device can simultaneously drive the hydraulic transmission system with the vertical and relative horizontal movements of the tower structure to generate power, effectively improving the utilization efficiency of the wave energy and reducing the power cost per unit wave energy generation. . By setting the horizontal relative motion wave energy hydraulic power generation system, the horizontal action load of the wave energy floating body on the single pile foundation tower structure can be effectively reduced, and the tower structure construction cost can be reduced.

[0016] (3) The wave energy conversion device adopts a bidirectional hydraulic drive power generation system, and its main performance parameters can be optimized according to the wave characteristics of the site.

[0017] (4) The vertical axis wind turbine, the two-way wave power generation device, and the tidal current power generation device share a single pile support structure and a power transmission system, which can improve the utilization efficiency of the marine energy and effectively reduce the unit power generation cost.

[0018] (5) The structure design is reasonable and stable, and the construction scheme is mature.

Brief description of the drawing DRAWINGS

1 is a front elevational view of an integrated structure of a single-pile platform vertical-axis wind turbine and a vertical-horizontal two-directional wave energy generation according to the present invention.

2 is a schematic cross-sectional view showing the connection of the wave energy generating device of the present invention to a tower structure. [0020] FIG.

3 is a top plan view showing the connection of the wave energy generating device of the present invention to the tower structure.

4a is a schematic diagram of a single wave energy generating device system of the present invention.

4b is a schematic diagram of a parallel wave energy generating device system of the present invention.

[0024] In the figure: 1 vertical axis wind turbine; 2 two-way wave energy power generation device; 3 tower structure; 4 single pile support platform structure; 5 slide type contact device; 6 vertical piston structure; 7 horizontal piston structure; 8 hydraulic cylinder; 9 first one-way inflow valve; 10 throttle valve; 11 hydraulic motor; 12 power generating device; 13 first one-way outflow valve; 14 second one-way inflow valve; 15 second one-way outflow valve ; 16 energy storage.

Embodiments of the invention

[0025] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0026] Based on a single pile platform vertical axis wind turbine and vertical-horizontal two-directional wave energy power generation integrated structure, including vertical axis wind turbine 1, two-way wave energy power generation device 2, two-way hydraulic power generation system, tower structure 3, The single pile supports the platform structure 4 and the supporting power transmission system. The two-way hydraulic power generation system includes a vertical hydraulic system and a horizontal hydraulic system having the same structure; a plurality of two-way hydraulic power generation systems, and the two-way hydraulic power generation systems are connected in parallel. The vertical axis wind turbine 1 is disposed above the tower structure 3, and the single pile support platform structure 4 is disposed below the tower structure 3. The power generation integrated structure utilizes the vertical axis wind turbine 1 to obtain wind energy, and the wave energy is obtained by the vertical and horizontal two-directional wave energy generating device 2 provided at the water surface of the tower structure 3.

[0027] The two-way wave energy generating device 2 is connected to the slide type contact device 5 through the horizontal piston structure 7, the slide type contact device 5 is coupled with the tower structure 3, and the two-way wave energy generating device 2 is slipped. The track contact device 5 moves vertically along the tower structure 3. The horizontal piston structure 7 is connected to the slide type contact device 5, and the other end is inserted into the hydraulic cylinder 8 of the horizontal hydraulic system; the upper end of the vertical piston structure 6 is fixed to the sleeve, and the lower end of the vertical piston structure 6 is deep into the vertical hydraulic system. In the hydraulic cylinder 8, the two ends of the inclined support rod are respectively fixed to the tower structure 3 and the sleeve.

[0028] The two-way hydraulic power generation system includes two closed circuits, and the first closed circuit is composed of a hydraulic cylinder 8, first The one-way inflow valve 9, the throttle valve 10, the hydraulic motor 11, the power generating device 12, and the first one-way outlet valve 13 are sequentially connected; the second closed circuit is composed of a hydraulic cylinder 8, a second one-way inflow valve 14, and a throttle The valve 10, the hydraulic motor 11, the power generating device 12, and the second one-way outflow valve 15 are configured. The two-way wave energy generating device 2 and the tower structure 3 can perform relative vertical movement and relative horizontal movement, thereby driving the vertical piston structure 6 and the horizontal piston structure 7 to perform compression or stretching motion. When the vertical piston structure 6 and the horizontal piston structure 7 perform a compression movement, the liquid in the hydraulic cylinder 8 is driven into the hydraulic motor 11 through the first one-way inflow valve 9 and the throttle valve 10 to drive the rotation thereof, thereby driving the power generating device 12 After the power generation, the final liquid is returned to the hydraulic cylinder 8 through the first one-way outlet valve 13; when the vertical piston structure 6 and the horizontal piston structure 7 are subjected to the stretching motion, the liquid in the hydraulic cylinder 8 is driven through the second one-way inlet valve. 14 and the throttle valve 10 enters the hydraulic motor 11 to drive its rotation, thereby causing the power generating device 12 to generate electricity, and finally the liquid is returned to the hydraulic cylinder 8 via the second one-way outlet valve 15; the throttle valve 10 and the accumulator 16 mainly To stabilize the hydraulic system pressure and protect the safety of the hydraulic system.

[0029] The product design of the present invention is combined with the following factors:

[0030] (1) According to the wind resource characteristics of the installed location, the performance parameters of the vertical axis wind turbine 1 are optimized, and the height and cross-sectional dimension of the tower structure 3 are optimized according to the aerodynamic load characteristics of the wind turbine 1.

[0031] (2) According to the statistical characteristics of the wave location, optimize the performance parameters of the vertical and horizontal hydraulic transmission power generation system of the wave energy generating device, and optimize the design of the roller coupling contact device 5;

[0032] (3) Combining the hydrodynamic characteristics of the wave energy generating device with the water depth and geological conditions of the site, optimizing the cross-sectional dimensions of the single pile platform support structure 4 and the tower structure 3 to ensure the support structure of the single pile foundation Safety and durability.

[0033] The construction and installation process of the vertical structure of the vertical axis wind turbine and the vertical-horizontal two-directional wave energy power generation based on the single pile platform is as follows: First, the existing single pile platform construction process is used to fix the single pile platform to the sea bottom; The two-way wave energy generating device 2 is assembled on the water surface of the tower structure 3 on the shore, and the assembled two-way wave energy generating device 2 and the tower structure 3 are transported to the installed position by a professional construction ship and integrally installed in the single pile. On the support structure 4, finally, the tower 2 and the top vertical axis wind turbine 1 are sequentially installed, and the construction and installation based on the single-pile vertical axis wind turbine-two-way wave energy device-trend energy device integrated structure is completed.

Claims

Claim

[1] Based on a single pile platform vertical axis wind turbine and a vertical-horizontal two-directional wave energy power generation integrated structure, the vertical axis wind turbine based on a single pile platform and vertical-horizontal two-directional wave energy The integrated power generation structure includes vertical axis wind turbine (1), two-way wave energy generating device (2), two-way hydraulic power generation system in two-way wave energy generating device (2), tower structure (3), single pile support Platform structure (4) and supporting power transmission system; the two-way hydraulic power generation system comprises a plurality of vertical hydraulic systems and horizontal hydraulic systems with the same structure and parallel connection; a plurality of two-way hydraulic power generation systems; vertical axis wind turbines (1) disposed above the tower structure (3), the single pile supporting platform structure (4) is disposed under the tower structure (3); the power generating integrated structure uses the vertical axis wind turbine (1) to obtain wind energy, and is used in the tower The vertical and horizontal two-way wave energy generating device (2) at the water surface of the frame structure (3) acquires wave energy;

The two-way wave energy generating device (2) is connected to the slide type contact device (5) through a horizontal piston structure (7), and the slide type contact device (5) is coupled with the tower structure (3), two directions The wave energy generating device (2) moves vertically along the tower structure (3) through the slide type contact device (5); the horizontal piston structure (7) is connected to the slide type contact device (5), and the other end is deep horizontally In the hydraulic cylinder (8) of the hydraulic system; the upper end of the vertical piston structure (6) is fixed to the sleeve, and the lower end of the vertical piston structure (6) is deep into the hydraulic cylinder (8) of the vertical hydraulic system, and the inclined support rods are two The ends are respectively fixed to the tower structure (3) and the sleeve;

The two-way wave energy generating device (2) and the tower structure (3) are capable of relative vertical movement and relative horizontal movement, thereby driving the vertical piston structure (6) and the horizontal piston structure (7) for compression. Or stretching motion; when the vertical piston structure (6) and the horizontal piston structure (7) do the compression movement, the liquid in the hydraulic cylinder (8) is driven through the first one-way inlet valve (9) and the throttle feed (10) Entering the hydraulic motor (11), driving its rotation, thereby driving the power generating device (12) to generate electricity, and finally the liquid is returned to the hydraulic cylinder (8) through the first one-way outlet valve (13); when the vertical piston structure (6) And the horizontal piston structure (7) performs the stretching motion, and drives the liquid in the hydraulic cylinder (8) to drive the hydraulic motor (11) to rotate through the second one-way inlet valve (14) and the throttle feed (10), thereby Driving the power generating device (12) to generate electricity, and finally the liquid is returned to the hydraulic cylinder (8) via the second one-way outflow (15); the throttle valve (10) and the accumulator (16) stabilize the hydraulic system pressure and Protect the safety of the hydraulic system.

2 . The single-pile platform vertical-axis wind turbine and the vertical-horizontal two-directional wave energy power generation integrated structure according to claim 1 , wherein the vertical axis wind turbine (1) has a blade of 2-6. , distributed symmetrically at the center.

[Claim 3] The single-pile platform vertical-axis wind turbine and the vertical-horizontal two-directional wave energy power generation integrated structure according to claim 1 or 2, wherein the slide type contact device (5) It is 4 sets, arranged symmetrically along the outer side of the tower structure (3).