Truss support foundation for tidal energy turbine capable of harvesting energy in multiple layers

Abstract

The present invention provides a truss support foundation for tidal energy turbines capable of obtaining energy in multiple layers. The support foundation is arranged below the sea surface, and includes a truss main structure composed of vertical support structures on both sides and several layers of transverse support structures arranged between the vertical support structures. Several tidal energy turbines are installed on each layer of transverse support structures; the bottom of the vertical support structure is fixed in the seabed; and several lateral tensioning mooring devices are arranged on both sides of the truss main structure, one end of each lateral tensioning mooring device is fixed in the seabed, and the other end is respectively fixed to the outer side of the vertical support structure at the height of each layer of transverse support structure. The present invention provides a fixed tidal energy support foundation design suitable for the coordinated work of multiple tidal energy turbines and capable of obtaining energy in a large range. The design and production cost are low, the installation is simple, and multiple types and sizes of tidal energy turbines can be configured according to needs, and the applicability is strong.

Description

Technical Field

[0001] The invention relates to the field of tidal current power generation, and in particular to a tidal current energy water turbine truss support foundation capable of obtaining energy in multiple layers. Background Art

[0002] With the increasing shortage of traditional energy and increasingly severe environmental problems around the world, the demand for renewable energy is rising around the world. As an important marine energy resource, tidal energy has abundant reserves and great development prospects. It has become the focus of renewable energy development in coastal countries around the world. The theoretical reserves of tidal energy in my country's offshore areas are about 14GW, and the resources are rich. However, the overall development speed of tidal energy in the world is still limited by the lack of development technology and equipment, and high costs.

[0003] As the main equipment for converting tidal energy into electrical energy, tidal turbines are mainly divided into two types: horizontal axis tidal turbines and vertical axis tidal turbines. The supporting structures of tidal turbines in the world are also mainly gravity-based foundations, pile-column and floating supporting structures.

[0004] At present, most of the fixed support foundations are pile foundation and bottom-seat structure. The pile foundation is mostly achieved by using a single pile and a pipe frame structure. However, these traditional tidal energy turbine support structures have technical problems such as insufficient foundation stability, insufficient economy, small energy acquisition range, low energy acquisition efficiency, difficult adjustment of energy acquisition direction, complex construction and power transmission. Therefore, it is necessary to develop a support structure for tidal energy turbines with high efficiency, multi-layer energy acquisition, simple and economical. Summary of the invention

[0005] The purpose of the present invention is to provide a tidal energy turbine truss support foundation that can obtain energy in multiple layers, combining the advantages of truss pile legs and tensioned mooring systems, and through multiple layers of horizontal support and multiple tidal energy turbine connection bases, to achieve the purpose of multiple underwater tidal energy turbines working in coordination; improve the stability of the tidal energy turbine support structure, enhance the collection rate and collection range of ocean tidal energy, reduce the tidal energy development cost of the traditional pile column tidal energy turbine support structure, and reduce the impact range of tidal energy development equipment on the sea area. In order to achieve the above effects, the specific scheme of the present invention is as follows:

[0006] A truss support foundation for a tidal energy turbine capable of obtaining energy in multiple layers, the support foundation being arranged below the sea surface, the truss support foundation comprising a truss main structure consisting of vertical support structures on both sides and a plurality of transverse support structures arranged between the vertical support structures on both sides, the two ends of each layer of the transverse support structure being connected to the vertical support structure, and a plurality of tidal energy turbines being installed on each layer of the transverse support structure;

[0007] The bottom of the vertical support structure is fixed in the seabed;

[0008] A plurality of lateral tensioning mooring devices are arranged on both sides of the truss-type main structure, one end of each lateral tensioning mooring device is fixed in the seabed, and the other end is respectively fixed on the outer side of the vertical supporting structure at the height of each layer of the lateral supporting structure.

[0009] Furthermore, each tidal energy turbine is fixed below each layer of the lateral support structure through a tidal energy turbine base.

[0010] Furthermore, a pile shoe fixed in the seabed is provided at the bottom of the vertical support structure.

[0011] Furthermore, an anchoring foundation fixed in the seabed is provided at the bottom end of the lateral tensioning mooring device.

[0012] Furthermore, the angle between each of the lateral tensioning mooring devices and the seabed is 30°-60°.

[0013] Furthermore, each of the vertical support structures is provided with three vertical main support tubes inserted into the seabed and forming a triangle, a plurality of first connecting frames are horizontally arranged at equal intervals between two adjacent vertical main support tubes, a first supporting inclined frame is arranged between two upper and lower adjacent first connecting frames, and two vertices of the first supporting inclined frame are fixed on two opposite connecting nodes between the vertical main support tube and the first connecting frame.

[0014] Furthermore, the three vertical main support pipes form an equilateral triangle.

[0015] Furthermore, each of the transverse support structures is provided with four transverse main supports arranged transversely and forming a rectangle, a plurality of second connecting frames are longitudinally arranged at equal intervals between two adjacent transverse main support tubes, the second connecting frames and the transverse main support tubes form a plurality of transversely end-to-end connected cubic frames, a second support oblique frame is arranged on each side of the cubic frame, and two vertices of the second support oblique frame are fixed on opposite nodes of the cubic frame

[0016] The beneficial effects of the present invention are:

[0017] (1) A fixed tidal current energy support foundation design suitable for the coordinated operation of multiple tidal current energy turbines and capable of obtaining energy over a large range is provided;

[0018] (2) The energy acquisition range of the tidal energy device is increased, and its energy acquisition efficiency is improved;

[0019] (3) Simple structure, low design and production cost, and easy installation;

[0020] (4) It is applicable to various types of tidal current energy turbines and can be configured with various types and sizes of tidal current energy turbines as required, with strong applicability;

[0021] (5) The cost of tidal energy development using the traditional pile-column vertical axis tidal energy turbine support foundation is reduced, and the impact range of tidal energy development equipment on the sea area is reduced. 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a front view of a truss support foundation for a tidal current energy turbine capable of obtaining energy in multiple layers provided by the present invention in one embodiment;

[0024] Figure 2 is a side view of a truss support foundation in one embodiment;

[0025] Figure 3 A partial diagram of a vertical support structure in one embodiment;

[0026] Figure 4 This is a partial view of a lateral support structure in one embodiment. DETAILED DESCRIPTION

[0027] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0028] In order to fully understand the present invention, detailed steps and detailed structures will be proposed in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0029] The present invention provides a tidal current energy turbine truss support foundation capable of obtaining energy in multiple layers, such as Figure 1-2As shown, the truss-type support foundation is arranged below the sea surface, and comprises a truss-type main structure composed of vertical support structures 2 on both sides and a plurality of transverse support structures 1 arranged between the vertical support structures 2 on both sides, both ends of each transverse support structure 1 are connected to the vertical support structure 2, and a plurality of tidal energy turbines 4 are installed on each transverse support structure 1; the bottom of the vertical support structure 2 is fixed in the seabed; a plurality of lateral tensioning mooring devices 6 are arranged on both sides of the truss-type main structure, a section of the lateral tensioning mooring device 6 is fixed in the seabed, and the other end is fixed to the outer side of the vertical support structure 2 at the connection height of the vertical support structure 2 and the transverse support structure 1.

[0030] In an optional embodiment, each tidal energy turbine 4 is fixed below each layer of the transverse support structure 1 through a tidal energy turbine base 3, which can meet the installation requirements of horizontal axis and vertical axis turbines.

[0031] In an optional embodiment, a pile shoe 5 fixed in the seabed soil is provided at the bottom of the vertical support structure 2. The pile shoe 5 of the vertical support structure 2 is fixed on the seabed, so that the truss-type main structure is not easy to fall out of the seabed mud.

[0032] In an optional embodiment, an anchor foundation 7 fixed in the seabed soil is provided at the bottom end of the lateral tensioning mooring device 6. Further preferably, the angle between the lateral tensioning mooring device 6 and the seabed is 30°-60°, preferably 60°, and this angle can apply a suitable lateral tension to the truss-type main structure, further improving the stability of the truss-type main structure fixed on the seabed. Among them, the side of the vertical support structure 2 is provided with a reinforcement member and a mooring point to be tightly connected with the lateral tensioning mooring device 6.

[0033] like Figure 1 It can be seen that a lateral tensioning mooring device 6 is provided on both sides of the vertical supporting structure 2 corresponding to each layer of the lateral supporting structure 1 to ensure the stability of the truss-type main structure fixed on the seabed.

[0034] Please see attached Figure 1-3 Each vertical support structure 2 is provided with three vertical main support pipes 20 inserted on the seabed and forming a triangle, a plurality of first connecting frames 21 are horizontally arranged at equal intervals between two adjacent vertical main support pipes 20, a first support inclined frame 22 is arranged between two upper and lower adjacent first connecting frames 21, and two vertices of the first support inclined frame 22 are fixed on two opposite connection nodes between the vertical main support pipe 20 and the first connecting frame 21. Preferably, the three vertical main support pipes 20 form an equilateral triangle.

[0035] Please see attached Figure 1-2 as well as Figure 4As shown, each transverse support structure 1 is provided with four transverse main support tubes 11 arranged transversely and forming a rectangle, and a plurality of second connecting frames 12 are longitudinally arranged at equal intervals between two adjacent transverse main support tubes 11. The second connecting frames 12 and the transverse main support tubes 11 form a plurality of transversely connected end-to-end cubic frames 10, and a second supporting inclined frame 13 is arranged on each side of the cubic frame 10, and the two vertices of the second supporting inclined frame 13 are fixed on the opposite nodes of the cubic frame 10. The truss-type main structure composed of the transverse support structure 1 and the vertical support structure 2 adopts the above structure, which has strong stability and does not affect the operation of the tidal energy turbine 2 on the transverse support structure 1.

[0036] The following is a brief description of the installation and construction steps of a tidal energy turbine jacket support foundation assisted by a lateral tensioning mooring system provided by the present invention:

[0037] Step 1: prefabricate the main structure on land, that is, install the transverse support structure 1 and the vertical support structure 2 together to form a truss-type main structure, and fix the bottom of the truss-type main structure on the seabed through pile shoes 5.

[0038] Step 2: Fix the lateral tensioning mooring device 6 on both sides of the truss-type main structure. The top end of the lateral tensioning mooring device 6 is fixed to the vertical support structure 2 through the mooring point, and the bottom end is fixed to the seabed through the anchor foundation 7.

[0039] Step 3: adjust the position of the tidal energy turbine base 3, and at the same time, put the tidal energy turbine 6 in place.

[0040] Step 4: Install the tidal energy turbine 4 and debug the power transmission system.

[0041] The beneficial effects of the present invention are:

[0042] (1) A fixed tidal current energy support foundation design suitable for the coordinated operation of multiple tidal current energy turbines and capable of obtaining energy over a large range is provided;

[0043] (2) The energy acquisition range of the tidal energy device is increased, and its energy acquisition efficiency is improved;

[0044] (3) Simple structure, low design and production cost, and easy installation;

[0045] (4) It is applicable to various types of tidal current energy turbines and can be configured with various types and sizes of tidal current energy turbines as required, with strong applicability;

[0046] (5) The cost of tidal energy development using the traditional pile-column vertical axis tidal energy turbine support foundation is reduced, and the impact range of tidal energy development equipment on the sea area is reduced.

[0047] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A truss support foundation for a tidal current energy turbine capable of obtaining energy in multiple layers, wherein the support foundation is arranged below the sea surface. It is characterized in that The truss-type support foundation comprises a truss-type main structure composed of vertical support structures (2) on both sides and a plurality of layers of transverse support structures (1) arranged between the vertical support structures (2) on both sides, the two ends of each layer of the transverse support structure (1) being connected to the vertical support structure (2), and a plurality of tidal energy turbines (4) being installed on each layer of the transverse support structure (1), and each tidal energy turbine (4) being fixed below each layer of the transverse support structure (1) through a tidal energy turbine base (3); The bottom of the vertical support structure (2) is fixed in the seabed, and a pile shoe (5) fixed in the seabed soil is arranged at the bottom of the vertical support structure (2), and each of the vertical support structures (2) is provided with three vertical main support pipes (20) inserted in the seabed and forming an equilateral triangle, and a plurality of first connecting frames (21) are horizontally arranged at equal intervals between two adjacent vertical main support pipes (20), and a first support inclined frame (22) is arranged between two upper and lower adjacent first connecting frames (21), and two vertices of the first support inclined frame (22) are fixed on two opposite connection nodes between the vertical main support pipe (20) and the first connecting frame (21); Each of the transverse support structures (1) is provided with four transverse main support tubes (11) arranged transversely and forming a rectangle, a plurality of second connecting frames (12) are longitudinally arranged at equal intervals between two adjacent transverse main support tubes (11), the second connecting frames (12) and the transverse main support tubes (11) form a plurality of transversely end-to-end connected cubic frames (10), a second support oblique frame (13) is provided on each side of the cubic frame (10), and two vertices of the second support oblique frame (13) are fixed on opposite nodes of the cubic frame (10); A plurality of lateral tensioning mooring devices (6) are arranged on both sides of the truss-type main structure, one end of each of the lateral tensioning mooring devices (6) is fixed in the seabed, and the other end is respectively fixed on the outer side of the vertical support structure (2) at the height of each layer of the transverse support structure (1), and the other end of the lateral tensioning mooring device (6) is provided with an anchor foundation (7) fixed in the seabed soil, and the angle between each of the lateral tensioning mooring devices (6) and the seabed is 30°-60°.

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