Offshore wind power anti-scour foundation and offshore wind power system

Abstract

The invention discloses an offshore wind power anti-scouring foundation and an offshore wind power system, and relates to the technical field of offshore wind power. The offshore wind power anti-scour foundation comprises a supporting pile, a plurality of protection piles and flow guiding pieces, the supporting pile is used for being partially buried in a seabed, the protection piles are used for being partially buried in the seabed, the multiple protection piles are arranged on the peripheral side of the supporting pile at intervals, and the multiple protection piles are used for forming a protection ring on the peripheral side of the supporting pile; and the flow guide pieces are arranged in one-to-one correspondence with the protection piles and arranged on the protection piles in a sleeving mode, and the flow guide pieces are used for dividing seawater flowing to the protection piles. According to the offshore wind power anti-scouring foundation, a protective layer can be formed on the peripheral side of the supporting pile, impact of seawater is weakened and blocked, protection is provided for the supporting pile, the stability and safety of the supporting pile during use are guaranteed, and the service life of offshore wind power generation equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and in particular to an offshore wind power anti-scour foundation and an offshore wind power system. Background Art

[0002] The field of wind power generation is an important part of the field of renewable energy, mainly involving the use of wind resources to generate electricity. Compared with wind resources on land, offshore wind resources are more abundant and the wind direction is more stable, which enables offshore wind power generation to provide more electricity per unit time than onshore wind power generation. However, under different environmental conditions such as unidirectional flow, tidal flow and wave flow, the support piles need to withstand the erosion of water flow. During the long-term power generation process, the stability and safety of the support piles will be affected during use, reducing the service life of offshore wind power generation equipment. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes an offshore wind power anti-scour foundation, which can form a protective layer around the supporting piles, weaken and block the impact of seawater, provide protection for the supporting piles, ensure the stability and safety of the supporting piles during use, and ensure the service life of the offshore wind power generation equipment.

[0005] An embodiment of the present invention further provides an offshore wind power system.

[0006] The offshore wind power anti-scour foundation of the embodiment of the present invention comprises:

[0007] Support piles, the support piles are used to be partially buried in the seabed;

[0008] A plurality of protection piles, wherein the protection piles are partially buried in the seabed, the plurality of protection piles are arranged at intervals around the supporting piles, and the plurality of protection piles are used to form a protection ring around the supporting piles;

[0009] A flow guide member is arranged in one-to-one correspondence with the protection pile and is sleeved on the protection pile. The flow guide member is used to divert the seawater flowing toward the protection pile.

[0010] The offshore wind power anti-scour foundation of the embodiment of the present invention can form a protective layer around the supporting piles, weaken and block the impact of seawater, provide protection for the supporting piles, ensure the stability and safety of the supporting piles during use, and ensure the service life of the offshore wind power generation equipment.

[0011] In some embodiments, the guide member includes a guide plate arranged perpendicular to the axial direction of the protection pile, and the guide plate is slidably sleeved on the protection pile along the extension direction of the protection pile and cooperates with the protection pile to prevent rotation.

[0012] In some embodiments, the guide member includes a guide ring, which is fixedly mounted on the guide plate, and the guide ring is provided with an upper end face and a lower end face on both axial sides of the protective pile, at least one of the upper end face and the lower end face is inclined, and the distance between the upper end face and the lower end face decreases in the direction away from the protective pile.

[0013] In some embodiments, the guide member has two guide surfaces parallel to the axis of the protection pile, the two guide surfaces are arranged at an angle and the angle is an acute angle, and the bisector of the angle between the two guide surfaces is parallel to the axis of the protection pile and intersects with the axis of the protection pile.

[0014] In some embodiments, the guide surface is an arc-shaped concave surface, and the guide member is rotatably disposed on the protection pile.

[0015] In some embodiments, a guide hole penetrating the guide member is provided on the guide member corresponding to the guide surface, and the axis of the guide hole is parallel to the bisector of the angle formed by the two guide surfaces.

[0016] In some embodiments, a protective plate is included, the protective plate is fixedly disposed on the supporting piles, and the protective plate is fixedly connected to a plurality of the protective piles.

[0017] In some embodiments, the protective piles are provided with multiple layers along the radial direction of the supporting piles to form multiple coaxially arranged protective rings. In two adjacent layers of protective rings, the connecting line between the protective piles and the supporting piles in the outer protective ring is arranged at an angle to the connecting line between the protective piles and the supporting piles in the corresponding inner protective ring, and the angle is an acute angle.

[0018] In some embodiments, the protection piles in each protection circle are arranged at equal intervals, and the number of the protection piles in two adjacent protection circles is the same.

[0019] The offshore wind power system of the embodiment of the present invention includes the offshore wind power anti-scour foundation of any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram from a first perspective of an offshore wind power anti-scour foundation according to an embodiment of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the offshore wind power anti-scour foundation from a second perspective according to an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the connection between the protection piles and the guide members in the offshore wind power anti-scour foundation according to an embodiment of the present invention.

[0023] Figure 4 It is a structural schematic diagram from a first perspective of an offshore wind power anti-scour foundation according to another embodiment of the present invention.

[0024] Figure 5 It is a structural schematic diagram from a second perspective of an offshore wind power anti-scour foundation according to another embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of the connection between the protection piles and the guide members in the offshore wind power anti-scour foundation according to another embodiment of the present invention.

[0026] Reference numerals:

[0027] Support pile 1;

[0028] Protection pile 2; slide 21; stop plate 22; first pile section 23; second pile section 24;

[0029] Guide member 3; guide plate 31; slider 32; guide ring 33; guide surface 34; guide hole 35;

[0030] Protective plate 4. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] like Figures 1 to 6 As shown, the offshore wind power anti-scour foundation of the embodiment of the present invention includes a supporting pile 1, a plurality of protective piles 2 and a guide member 3, the supporting pile 1 is used to be partially buried in the seabed, the protective pile 2 is used to be partially buried in the seabed, the plurality of protective piles 2 are arranged at intervals around the supporting pile 1, the plurality of protective piles 2 are used to form a protective ring around the supporting pile 1, the guide member 3 is arranged one by one corresponding to the protective piles 2 and is sleeved on the protective pile 2, and the guide member 3 is used to divert seawater flowing to the protective pile 2.

[0033] When the offshore wind power anti-scour foundation of the embodiment of the present invention is in use, the protection piles 2 located on the side of the supporting piles 1 block the sea current flowing toward the supporting piles 1 to slow down and divert the sea current. At the same time, the guide members 3 arranged on the protection piles 2 further slow down and divert the sea current flowing through the protection piles 2, reduce the flow rate and amount of the sea current flowing toward the supporting piles 1, and thereby reduce the scouring of the sea current on the supporting piles 1. At the same time, the protection piles 2 are arranged on the side of the supporting piles 1. The protection circle formed by multiple protection piles 2 can effectively slow down and divert the sea current flowing toward the supporting piles 1 in multiple directions, thereby ensuring the anti-scour protection of the supporting piles 1 and ensuring the service life of the supporting piles 1.

[0034] The offshore wind power anti-scour foundation of the embodiment of the present invention can form a protective layer around the supporting pile 1, weaken and block the impact of seawater, provide protection for the supporting pile 1, and is safe and reliable. It effectively ensures the stability and safety of the supporting pile 1 during use and guarantees the service life of the offshore wind power generation equipment.

[0035] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the guide member 3 includes a guide plate 31 arranged perpendicular to the axial direction of the protection pile 2. The guide plate 31 is slidably sleeved on the protection pile 2 along the extension direction of the protection pile 2 and cooperates with the protection pile 2 to prevent rotation.

[0036] Specifically, the protective pile 2 is provided with a slide groove 21 extending along the axial direction of the protective pile 2, and the length of the slide groove 21 is less than the length of the part of the protective pile 2 located above the seabed. The guide plate 31 is provided with a slider 32 for the slide groove 21, and the slider 32 is slidably fitted in the slide groove 21. When the slider 32 is located at the bottom of the slide groove 21, there is a set distance between the guide plate 31 and the seabed. When seawater flows through the protective pile 2, it is diverted through the two axial end faces of the guide plate 31, and the flow direction of part of the ocean current is changed, so that the ocean currents of different directions impact each other to reduce the speed of the ocean current. It is safe and reliable, has a simple structure, and is easy to build and install. At the same time, the guide plate 31 is set to slide along the axial direction of the protective pile 2. When the impact force of the ocean current is large, the impact force acting on the guide member 3 can drive the guide plate 31 to move along the axial direction of the protective pile 2, thereby reducing the force transmitted to the protective pile 2 by the guide member 3, and effectively offsetting the impact force of the ocean current.

[0037] Optionally, a stop plate 22 is fixedly provided on the protection pile 2, and the stop plate 22 is a circular plate.

[0038] In some embodiments, Figure 1 , Figure 2 and Figure 3As shown, the guide member 3 includes a guide ring 33, which is fixedly mounted on the guide plate 31. The guide ring 33 is provided with an upper end face and a lower end face on both axial sides of the protective pile 2. At least one of the upper end face and the lower end face is inclined, and the distance between the upper end face and the lower end face decreases in the direction away from the protective pile 2.

[0039] It should be noted that at least one of the upper end face and the lower end face is inclined, which means that the upper end face is inclined, or the lower end face is inclined, or both the upper end face and the lower end face are inclined. A guide ring 33 is arranged on the outside of the guide plate 31, and the ocean current is guided and diverted by the upper end face or the lower end face inclined by the guide ring 33, thereby reducing the impact of the ocean current on the guide member 3, and increasing the guiding angle of the flow direction of the ocean current, thereby increasing the deceleration effect on the ocean current.

[0040] In some embodiments, Figure 4 , Figure 5 and Figure 6 As shown, the guide member 3 has two guide surfaces 34 parallel to the axis of the protection pile 2, the two guide surfaces 34 are arranged at an angle and the angle is an acute angle, the bisector of the angle formed by the two guide surfaces 34 is parallel to the axis of the protection pile 2 and intersects with the axis of the protection pile 2, and the two guide surfaces 34 are used to divert the sea current flowing toward the protection pile 2 in the circumferential direction of the protection pile 2, thereby reducing the flow velocity and impact force of the sea current after flowing through the protection pile 2 and the guide member 3, thereby effectively ensuring the protection of the support pile 1.

[0041] Optionally, the two guide surfaces 34 are symmetrically arranged, that is, the sizes of the two guide surfaces 34 are equal.

[0042] Optionally, the cross section of the flow guide 3 in a direction perpendicular to the axial direction of the protection pile 2 is triangular or rhombus-shaped.

[0043] In some embodiments, Figure 4 , Figure 5 and Figure 6 As shown, the guide surface 34 is an arc-shaped concave surface, and the guide member 3 is rotatably arranged on the protective pile 2. By setting the guide surface 34 as an arc-shaped surface, the force of the ocean current impacting the guide surface 34 can be reduced. At the same time, when the ocean current passes through the guide surface 34 with an arc-shaped concave surface, the angle of the guide surface 34 to divert the ocean current can be increased, and the impact between the ocean currents can be increased, and the flow velocity and impact force of the ocean current passing through the protective pile 2 and the guide member 3 can be effectively reduced. At the same time, the guide member 3 is rotatably arranged on the protective pile 2. Under the action of the ocean current, the guide member 3 automatically rotates to ensure that the top angles of the two guide surfaces 34 always face the ocean current, so as to facilitate the diversion and deceleration of the ocean current flowing from different directions toward the support pile 1, and effectively reduce the scouring of the ocean current on the support pile 1.

[0044] Optionally, the flow guide 3 is arranged on the protection pile 2 through a connecting bearing.

[0045] Optionally, the guide member 3 is slidably arranged on the protective pile 2 along the axial direction of the protective pile 2, the protective pile 2 includes a first pile segment 23 and a second pile segment 24, the first pile segment 23 is partially buried in the seabed, the diameter of the second pile segment 24 is smaller than the diameter of the first pile segment 23, the guide member 3 is slidably sleeved on the second pile segment 24 and rotatably cooperates with the second pile segment 24, and the guide member 3 and the first pile segment 23 are stopped in the axial direction of the protective pile 2.

[0046] In some embodiments, Figure 4 , Figure 5 and Figure 6 As shown, a guide hole 35 penetrating the guide member 3 is provided on the guide member 3 corresponding to the guide surface 34, and the axis of the guide hole 35 is parallel to the angle bisector of the angle formed by the two guide surfaces 34. By providing the guide hole 35, part of the ocean current can pass through the guide member 3 to reach the side of the guide member 3 close to the support pile 1, which can reduce the impact force borne by the guide member 3 and suppress the vortex generated at the tail of the guide member 3, effectively reduce the flow velocity and impact force of the ocean current flowing to the support pile 1, and facilitate the formation of an ocean current with a slow flow rate in the protective circle, thereby ensuring the protection of the support pile 1.

[0047] Optionally, the axis of the diversion hole 35 is perpendicular to the axis of the protection pile 2 .

[0048] In some embodiments, Figure 1 and Figure 4 As shown, it includes a protective plate 4, which is fixedly arranged on the supporting pile 1 and is fixedly connected to a plurality of protective piles 2. The protective plate 4 is provided to connect the protective piles 2 and the supporting piles 1 together, increase the connection points between the supporting piles 1 and the seabed, and enhance the stability of the supporting piles 1 during use.

[0049] In some embodiments, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the protective pile 2 is provided with multiple layers along the radial direction of the supporting pile 1 to form a plurality of coaxially arranged protective rings. In two adjacent layers of protective rings, the connecting line of the protective pile 2 and the supporting pile 1 in the outer protective ring is arranged at an angle with the corresponding connecting line of the protective pile 2 and the supporting pile 1 in the inner protective ring, and the angle is an acute angle.

[0050] A plurality of protection circles are used to realize the step-by-step deceleration and diversion of the flow toward the support pile 1, thereby ensuring the scouring protection of the support pile 1. At the same time, the adjacent protection piles 2 in two adjacent protection circles are staggered to further ensure the step-by-step deceleration and separation of the ocean current, thereby avoiding the overlap of adjacent protection piles 2 in two adjacent protection circles in the radial direction of the support pile 1, thereby ensuring the protective effect of the protection piles 2.

[0051] In some embodiments, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the protection piles 2 in each protection circle are arranged at equal intervals, and the number of protection piles 2 in two adjacent protection circles is the same. By setting an equal number of protection piles 2 in each protection circle, it is convenient to stagger the support piles 1 in two adjacent protection circles to ensure the staggered protection effect between multiple protection circles and improve the anti-scour ability of multiple support piles 1.

[0052] An offshore wind power system according to an embodiment of the present invention is described below.

[0053] The offshore wind power system of the embodiment of the present invention includes the offshore wind power anti-scour foundation of any one of the above embodiments, and also includes an offshore wind power generation component arranged on the supporting piles.

[0054] The offshore wind power system of the embodiment of the present invention can effectively protect the supporting piles, ensure the stability and safety of the offshore wind power system during use, and guarantee the service life of the offshore wind power generation system.

[0055] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] 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.

[0059] 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.

[0060] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An offshore wind power anti-scour foundation, characterized in that: include: Support piles, the support piles are used to be partially buried in the seabed; A plurality of protection piles, wherein the protection piles are partially buried in the seabed, the plurality of protection piles are arranged at intervals around the supporting piles, and the plurality of protection piles are used to form a protection ring around the supporting piles; A flow guide member is arranged in one-to-one correspondence with the protection pile and is sleeved on the protection pile. The flow guide member is used to divert the seawater flowing toward the protection pile.

2. The offshore wind power anti-scour foundation according to claim 1 is characterized in that: The guide member comprises a guide plate which is arranged perpendicular to the axial direction of the protection pile. The guide plate is slidably sleeved on the protection pile along the extension direction of the protection pile and is anti-rotationally matched with the protection pile.

3. The offshore wind power anti-scour foundation according to claim 2 is characterized in that: The guide member includes a guide ring, which is fixedly sleeved on the guide plate. The guide ring is provided with an upper end face and a lower end face on both axial sides of the protective pile. At least one of the upper end face and the lower end face is inclined, and the distance between the upper end face and the lower end face decreases in the direction away from the protective pile.

4. The offshore wind power anti-scour foundation according to claim 1, characterized in that: The guide member has two guide surfaces parallel to the axis of the protection pile. The two guide surfaces are arranged at an angle and the angle is an acute angle. The bisector of the angle between the two guide surfaces is parallel to the axis of the protection pile and intersects with the axis of the protection pile.

5. The offshore wind power anti-scour foundation according to claim 4, characterized in that: The guide surface is an arc-shaped concave surface, and the guide member is rotatably arranged on the protection pile.

6. The offshore wind power anti-scour foundation according to claim 4, characterized in that: A flow guide hole penetrating the flow guide is provided on the flow guide corresponding to the flow guide surface, and the axis of the flow guide hole is parallel to the bisector of the angle formed by the two flow guide surfaces.

7. The offshore wind power anti-scour foundation according to claim 1, characterized in that: It comprises a protection plate, which is fixed on the support piles and is fixedly connected to a plurality of the protection piles.

8. The offshore wind power anti-scour foundation according to claim 1, characterized in that: The protective piles are provided with multiple layers along the radial direction of the supporting piles to form multiple coaxially arranged protective rings. In two adjacent layers of protective rings, the connecting line between the protective piles and the supporting piles in the outer protective ring is arranged at an angle with the connecting line between the protective piles and the supporting piles in the corresponding inner protective ring, and the angle is an acute angle.

9. The offshore wind power anti-scour foundation according to claim 8, characterized in that: The protection piles in each protection circle are arranged at equal intervals, and the number of the protection piles in two adjacent protection circles is the same.

10. An offshore wind power system, characterized in that: It comprises the offshore wind power anti-scour foundation as described in any one of claims 1-9.

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