Artificial fish reef and method for manufacturing the artificial fish reef having the same

Abstract

The present invention discloses an artificial fish reef and a method for manufacturing the artificial fish reef, wherein the artificial fish reef comprises: two concrete bases, each of which is provided with a through hole; a plurality of blade cavities, the blade cavities are cut by a wind turbine blade in a direction perpendicular to the length direction of the wind turbine blade, each of which has a cavity with at least one end open, the two ends of each of which are respectively cast in the two concrete bases, the connection between the plurality of blade cavities and the concrete base is located radially outside the through hole on the concrete base and is arranged at intervals along the circumference of the through hole; anchoring steel bars, the anchoring steel bars are cast in the concrete base, each of which is provided with a steel bar hole, and the anchoring steel bars pass through the plurality of steel bar holes. The artificial fish reef according to the embodiment of the present invention has the advantages of low manufacturing difficulty and strong ability to gather fish organisms.

Description

Technical Field

[0001] The invention relates to the technical field of resources and environment, and in particular to an artificial fish reef and a method for manufacturing the artificial fish reef having the artificial fish reef. Background Art

[0002] Artificial reefs are structures set up in the sea to provide a habitat for fish and other organisms, and to protect, increase and improve fish catch. Artificial reefs need to have structures such as cavities that can provide habitats for fish and organisms, and due to their special use environment, they need to have high structural strength and corrosion resistance.

[0003] Artificial fish reefs in related technologies need to ensure structural strength and corrosion resistance, and in order to be able to form special structures such as cavities for fish to live in, their manufacturing is relatively difficult. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an artificial fish reef, which has the advantages of low manufacturing difficulty and strong ability to gather fish organisms.

[0005] The invention also provides a method for manufacturing an artificial fish reef.

[0006] To achieve the above-mentioned purpose, an artificial fish reef is provided according to an embodiment of the first aspect of the present invention, the artificial fish reef comprising: two concrete bases, each of which is provided with a through hole; a plurality of blade cavities, the blade cavities being cut by a wind turbine blade along a direction perpendicular to the length direction of the wind turbine blade, each of which has a cavity with at least one end open, the two ends of each of which are respectively cast in the two concrete bases, the connection between the plurality of blade cavities and the concrete bases being located radially outside the through hole on the concrete base and being arranged at intervals along the circumference of the through hole; anchoring steel bars, the anchoring steel bars being cast in the concrete base, each of which is provided with a steel bar hole, and the anchoring steel bars passing through the plurality of steel bar holes.

[0007] The artificial fish reef according to the embodiment of the present invention has the advantages of low manufacturing difficulty and strong ability to gather fish organisms.

[0008] In addition, the artificial reef according to the above embodiment of the present invention may also have the following additional technical features:

[0009] According to an embodiment of the present invention, the blade cavity has a relative windward surface and a leeward surface, and the windward surface of the blade cavity located at the bottom among the plurality of blade cavities is located above its leeward surface.

[0010] According to one embodiment of the present invention, the blade cavity has a relative windward surface and a leeward surface, and the windward surfaces of a plurality of the blade cavities face the inner side of the artificial fish reef and the leeward surfaces face the outer side of the artificial fish reef.

[0011] According to one embodiment of the present invention, the wind turbine blade is a discarded wind turbine blade, the wind turbine blade is a skin main beam wind turbine blade, and the blade cavity is a carbon fiber reinforced thermosetting resin material part or a glass fiber reinforced thermosetting resin material part.

[0012] According to an embodiment of the present invention, the length of the blade cavity is greater than or equal to 3 meters and less than or equal to 12 meters, and the diameter of the through hole is greater than or equal to 300 millimeters.

[0013] According to one embodiment of the present invention, the anchoring steel bars are multiple and include multiple horizontal bars and multiple vertical bars, and each of the blade cavities is connected to at least two of the multiple anchoring steel bars.

[0014] According to an embodiment of the second aspect of the present invention, a method for manufacturing an artificial reef is provided, and the method for manufacturing an artificial reef comprises the following steps:

[0015] Cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade, each of the blade cavities having a cavity with at least one end open;

[0016] A steel bar hole is provided on each of the blade cavities, and anchoring steel bars are passed through the plurality of the steel bar holes;

[0017] Pouring concrete to form two concrete bases and respectively pouring two ends of each blade cavity into the two concrete bases;

[0018] A through hole is opened on each of the concrete bases, so that the connection points between the plurality of blade cavities and the concrete base are located radially outside the through hole on the concrete base and are arranged at intervals along the circumference of the through hole. After the concrete hardens, the artificial fish reef is manufactured.

[0019] The method for manufacturing an artificial fish reef according to the embodiment of the present invention has the advantages of low manufacturing difficulty and strong ability to gather fish organisms.

[0020] In addition, the method for manufacturing an artificial fish reef according to the above embodiment of the present invention may also have the following additional technical features:

[0021] According to an embodiment of the present invention, in the step of cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade, water jet cutting is used as the cutting method.

[0022] According to one embodiment of the present invention, after the step of cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade and before the step of opening a steel bar hole in each of the blade cavities, the outer surface of the blade cavity is sandblasted to remove the topcoat on the outer surface of the blade cavity.

[0023] According to one embodiment of the present invention, after the sandblasting operation is performed on the outer surface of the blade cavity and before the step of opening a steel bar hole on each of the blade cavities, anti-cracking mortar is sprayed on the outer surface of the blade cavity.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 Schematic diagram of the structure of an artificial fish reef according to an embodiment of the present invention.

[0027] Figure 2 Schematic diagram of the structure of an artificial fish reef according to an embodiment of the present invention.

[0028] Figure 3 is a cross-sectional view of an artificial fish reef according to an embodiment of the present invention.

[0029] Figure 4 Schematic diagram of a cutting method of a blade cavity of an artificial fish reef according to an embodiment of the present invention.

[0030] Figure 5 4 is a flow chart of a method for manufacturing an artificial fish reef according to an embodiment of the present invention.

[0031] Reference numerals: artificial fish reef 1 , concrete base 10 , through hole 11 , blade cavity 20 , cavity 21 , windward surface 22 , leeward surface 23 , anchoring steel bar 30 , wind turbine blade 2 . DETAILED DESCRIPTION

[0032] This application is based on the inventor's discovery and understanding of the following facts and problems:

[0033] Artificial reefs are structures set up in the sea to provide a habitat for fish and other organisms, and to protect, increase and improve fish catch. Artificial reefs need to have structures such as cavities that can provide habitats for fish and organisms, and due to their special use environment, they need to have high structural strength and corrosion resistance.

[0034] Artificial fish reefs in related technologies need to ensure structural strength and corrosion resistance, and in order to be able to form special structures such as cavities for fish to live in, their manufacturing is relatively difficult.

[0035] Artificial reefs are set up underwater at a certain depth and are affected by water pressure and water corrosiveness, so they need to ensure structural strength and corrosion resistance. For this reason, artificial reefs in related technologies are made of fiber-reinforced composite materials, which results in high costs.

[0036] In addition, in recent years, wind power generation technology has developed rapidly. At present, my country has become the world's largest wind power generation country. The main material of wind turbine blades is fiber-reinforced composite materials, and its service life is about 25 years. Wind turbine blades that have been in use for a long time need to be retired. It is expected that a large number of wind turbine blades will usher in a wave of retirement around 2025, and how to deal with these retired wind turbine blades will be a difficult problem. The traditional method of dealing with retired wind turbine blades is landfill, which not only occupies a large amount of land resources, but also pollutes the ecological environment. In addition, wind turbine blades are hollow structures with large cavities inside.

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The artificial reef 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0041] like Figure 1-Figure 4 As shown, the artificial fish reef 1 according to the embodiment of the present invention includes two concrete bases 10 , a plurality of blade cavities 20 and anchoring steel bars 30 .

[0042] Each concrete base 10 is provided with a through hole 11. The blade cavity 20 is formed by cutting the wind turbine blade 2 in a direction perpendicular to the length direction of the wind turbine blade 2. Each blade cavity 20 has a cavity 21 with at least one end open. The two ends of each blade cavity 20 are cast in two concrete bases 10 respectively. The connection points of multiple blade cavities 20 and concrete bases 10 are located radially outside the through hole 11 on the concrete base 10 and are arranged at intervals along the circumference of the through hole 11. Anchor steel bars 30 are cast in the concrete base 10. Each blade cavity 20 is provided with a steel bar hole, and the anchor steel bars 30 pass through multiple of the steel bar holes.

[0043] It is understood by those skilled in the art that the method of cutting the wind turbine blade 2 into a plurality of blade cavities 20 is as follows: Figure 4 As shown, the number, position and length of the blade cavities 20 cut out of the wind turbine blade 2 can be adjusted according to actual needs. One artificial fish reef 1 can use blade cavities 20 at the same position cut out of multiple wind turbine blades 2, or one artificial fish reef 1 can use multiple blade cavities 20 cut out of one wind turbine blade 2. One artificial fish reef 1 can fully utilize the multiple blade cavities 20 cut out of one wind turbine blade 2 or only utilize a part of the multiple blade cavities 20 cut out of one wind turbine blade 2.

[0044] Figure 1-Figure 4 The figure shows a technical solution of cutting a wind turbine blade 2 into five blade cavities 20, and making an artificial fish reef 1 using four blade cavities 20 near the outer end of the wind turbine blade 2. In this way, the structure for connection at the inner end of the wind turbine blade 2 can be avoided, and only the relatively flat part of the wind turbine blade 2 can be used.

[0045] According to the artificial fish reef 1 of the embodiment of the present invention, by using the blade cavity 20 cut out of the wind turbine blade 2, and setting the concrete base 10 and the anchoring steel bar 30, the wind turbine blade 2 itself has high structural strength and corrosion resistance, which can adapt to the special use environment of the artificial fish reef, and the wind turbine blade 2 is a hollow structure inside, and after cutting, a cavity 21 with at least one end open will be formed, which can facilitate the formation of a space for fish to live in the artificial fish reef 1. In this way, the manufacture of the artificial fish reef 1 can be realized by rationally arranging the blade cavity 20 cut out of the wind turbine blade 2 and connecting them through the anchoring steel bar 30, and then casting them into one body using the concrete base 10. While meeting the requirements of structural strength and corrosion resistance, a more complex structure for fish to live in can be realized. Compared with the artificial fish reefs in the related art, the manufacture of the artificial fish reef 1 can be facilitated, and the manufacturing difficulty of the artificial fish reef 1 can be reduced.

[0046] Furthermore, by providing a concrete base 10 and anchoring steel bars 30, the two ends of each blade cavity 20 are cast in two concrete bases 10 respectively, and the connection between the multiple blade cavities 20 and the concrete base 10 is located radially outside the through hole 11 on the concrete base 10 and is arranged at intervals along the circumference of the through hole 11. In this way, multiple blade cavities 20 can be used to enclose a space for fish to live in, and fish can enter and exit through the through hole 11 or the gap between the blade cavities 20, thereby providing a better living and sheltering space for fish, playing a role in protecting, multiplying and increasing fish catch, and improving the ability of the artificial reef 1 to gather fish.

[0047] In addition, the wind turbine blades 2 can be manufactured using retired, damaged or defective products that cannot be actually used in wind turbines. This can reduce the manufacturing cost of the artificial fish reef 1 on the one hand, and on the other hand, it can achieve the recycling of the wind turbine blades 2 to avoid the waste of land resources and ecological environment pollution caused by landfill.

[0048] Therefore, the artificial fish reef 1 according to the embodiment of the present invention has the advantages of low manufacturing difficulty and strong ability to gather fish organisms.

[0049] The artificial fish reef 1 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0050] In some specific embodiments of the present invention, Figure 1-Figure 4 As shown, the artificial reef 1 according to the embodiment of the present invention includes two concrete bases 10 , a plurality of blade cavities 20 and anchoring steel bars 30 .

[0051] Specifically, Figure 3As shown, the blade cavity 20 has a relative windward surface 22 and a leeward surface 23, and the windward surface 22 of the blade cavity 20 located at the bottom among the multiple blade cavities 20 is located above its leeward surface 23 (the up and down directions are shown by the arrows in the figure and are only for the convenience of description, not for the limitation of the actual setting direction). It can be understood by those skilled in the art that the wind turbine blade 2 itself has a relative windward surface and a leeward surface, and the shapes of the windward surface and the leeward surface are different. The setting direction of the wind turbine blade 2 when used on the wind turbine should make the wind direction satisfy the direction from the windward surface to the leeward surface. The windward surface 22 of the blade cavity 20 corresponds to the windward surface of the wind turbine blade 2 before cutting, and the leeward surface 23 of the blade cavity 20 corresponds to the leeward surface of the wind turbine blade 2 before cutting. In this way, when the water flows through the blade cavity 20 located at the bottom among the multiple blade cavities 20, it can generate rising currents and turbulence, drive nutrients on the seabed, and further improve the attraction effect of the artificial fish reef 1 on fish organisms.

[0052] Alternatively, if Figure 3 As shown, the blade cavity 20 has a relative windward surface 22 and a leeward surface 23, and the windward surfaces 22 of the plurality of blade cavities 20 face the inner side of the artificial fish reef 1 and the leeward surfaces 23 face the outer side of the artificial fish reef 1. This can facilitate the arrangement of the plurality of blade cavities 20, improve the utilization rate of the space, facilitate the generation of turbulence at the artificial fish reef 1, and improve the attraction effect of the artificial fish reef 1 on fish organisms.

[0053] Specifically, there may be four blade cavities 20, the concrete base 10 may be rectangular, and the four blade cavities 20 are respectively arranged adjacent to four edges of the concrete base 10 and the width directions are oriented in the same direction along the adjacent edges.

[0054] Advantageously, the wind turbine blades 2 are discarded wind turbine blades. It should be understood that "discarded wind turbine blades" refer to wind turbine blades that are retired, damaged or defective and cannot be actually used in wind turbines after being manufactured. This can reduce the manufacturing cost of the artificial fish reef 1 on the one hand, and on the other hand, it can achieve the recycling of the wind turbine blades 2, avoiding the waste of land resources and ecological environment pollution caused by landfill.

[0055] Optionally, the wind turbine blade 2 is a skin main beam wind turbine blade and the blade cavity 20 is a carbon fiber reinforced thermosetting resin material or a glass fiber reinforced thermosetting resin material. In this way, a larger proportion of cavities can be provided in the blade cavity 20, and the material of the blade cavity 20 has good structural strength and corrosion resistance.

[0056] It can be understood by those skilled in the art that, due to the special requirements of its usage scenario, the wind turbine blade 2 must adopt a hollow structure to reduce weight, and must have high structural strength and corrosion resistance, while the skin main beam blade has a larger proportion of cavity structure, and the fiber-reinforced thermosetting resin material parts have better structural strength and corrosion resistance.

[0057] Furthermore, the length of the blade cavity 20 is greater than or equal to 3 meters and less than or equal to 12 meters, so that the length of the artificial reef 1 can be more reasonable, avoiding the artificial reef 1 being too short, resulting in too small a space for fish to inhabit, and avoiding the blade cavity 20 being too long, resulting in difficulties in transportation and manufacturing of the artificial reef 1.

[0058] Furthermore, the diameter of the through hole 11 is greater than or equal to 300 mm, so as to ensure that the through hole 11 has a sufficient size to ensure that fish can enter and exit.

[0059] Advantageously, if Figure 3 As shown, there are multiple anchoring steel bars 30 including multiple horizontal bars and multiple vertical bars, and each blade cavity 20 is connected to at least two of the multiple anchoring steel bars 30. Specifically, the horizontal bars are arranged in the horizontal direction and the vertical bars are arranged in the vertical direction. In this way, the connection strength and stability of the multiple blade cavities 20 can be improved, the structural strength and stability of the artificial reef 1 can be improved, and the artificial reef 1 can be ensured not to be deformed and damaged due to water pressure under water with a certain depth.

[0060] Specifically, the concrete type of the concrete base 10 can be ordinary concrete, recycled concrete, high-strength concrete or other cement-based materials. In order to ensure the stability of the concrete base 10 during the manufacturing and placement process, the axial compressive strength of the concrete base 10 should not be less than 20 MPa.

[0061] The following describes a method for manufacturing an artificial fish reef according to an embodiment of the present invention. The method for manufacturing an artificial fish reef according to an embodiment of the present invention comprises the following steps:

[0062] Cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade, each of the blade cavities having a cavity with at least one end open;

[0063] A steel bar hole is provided on each of the blade cavities, and anchoring steel bars are passed through the plurality of the steel bar holes;

[0064] Pouring concrete to form two concrete bases and respectively pouring two ends of each blade cavity into the two concrete bases;

[0065] A through hole is opened on each of the concrete bases, so that the connection points between the plurality of blade cavities and the concrete base are located radially outside the through hole on the concrete base and are arranged at intervals along the circumference of the through hole. After the concrete hardens, the artificial fish reef is manufactured.

[0066] The method for manufacturing an artificial fish reef according to the embodiment of the present invention has the advantages of low manufacturing difficulty and strong ability to gather fish organisms.

[0067] Advantageously, in the step of cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade, water jet cutting is used, which can make the cutting surface smoother, avoid burrs on the cutting surface, avoid burrs harming fish, and reduce dust generated during the cutting process, avoiding dust harming operators.

[0068] More advantageously, after the step of cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade and before the step of opening a steel bar hole in each of the blade cavities, the outer surface of the blade cavity is sandblasted to remove the topcoat on the outer surface of the blade cavity. In this way, the paint on the surface of the blade cavity can be removed to prevent the paint from polluting the water quality.

[0069] Furthermore, after the sandblasting operation on the outer surface of the blade cavity and before the step of opening a steel bar hole on each of the blade cavities, anti-cracking mortar is sprayed on the outer surface of the blade cavity, so that the outer surface of the blade cavity is more susceptible to biological attachment.

[0070] Other structures and operations of the artificial fish reef 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 representation of the above terms does 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.

[0072] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An artificial reef, characterized in that: include: Two concrete bases, each of which is provided with a through hole; A plurality of blade cavities, wherein the blade cavities are formed by cutting the wind turbine blades in a direction perpendicular to the length direction of the wind turbine blades, each of the blade cavities having a cavity with at least one end open, the two ends of each of the blade cavities being respectively cast in the two concrete bases, and the connection points between the plurality of blade cavities and the concrete bases being located radially outside the through holes on the concrete bases and being arranged at intervals along the circumference of the through holes; Anchoring steel bars, the anchoring steel bars are cast in the concrete base, each blade cavity is provided with a steel bar hole, and the anchoring steel bars pass through a plurality of the steel bar holes; The blade cavity has a relative windward surface and a leeward surface, and the windward surfaces of the plurality of blade cavities face the inner side of the artificial fish reef and the leeward surfaces face the outer side of the artificial fish reef; The blade cavity has a relative windward surface and a leeward surface, and the windward surface of the blade cavity located at the bottom among the plurality of blade cavities is located above its leeward surface; The wind turbine blade is a discarded wind turbine blade, the wind turbine blade is a skin main beam wind turbine blade, and the blade cavity is a carbon fiber reinforced thermosetting resin material part or a glass fiber reinforced thermosetting resin material part.

2. The artificial reef according to claim 1, characterized in that: The length of the blade cavity is greater than or equal to 3 meters and less than or equal to 12 meters, and the diameter of the through hole is greater than or equal to 300 millimeters.

3. The artificial reef according to claim 1, characterized in that: The anchoring steel bars are multiple and include multiple horizontal bars and multiple vertical bars, and each of the blade cavities is connected to at least two of the multiple anchoring steel bars.

4. A method for manufacturing an artificial reef, characterized in that: The following steps are involved: Cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade, each of the blade cavities having a cavity with at least one end open; A steel bar hole is provided on each of the blade cavities, and anchoring steel bars are passed through the plurality of the steel bar holes; Pouring concrete to form two concrete bases and respectively pouring two ends of each blade cavity into the two concrete bases; A through hole is opened on each of the concrete bases, so that the connection points between the plurality of blade cavities and the concrete base are located radially outside the through hole on the concrete base and are arranged at intervals along the circumference of the through hole, and after the concrete hardens, the artificial fish reef is manufactured; After the step of cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade and before the step of opening a steel bar hole in each of the blade cavities, sandblasting the outer surface of the blade cavity to remove the topcoat on the outer surface of the blade cavity; After the sandblasting operation is performed on the outer surface of the blade cavity and before the step of opening a steel bar hole on each of the blade cavities, anti-cracking mortar is sprayed on the outer surface of the blade cavity.

5. The method for manufacturing an artificial reef according to claim 4, characterized in that: In the step of cutting the wind turbine blade into a plurality of blade cavities along a direction perpendicular to the length direction of the wind turbine blade, water jet cutting is used as the cutting method.

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