Piling noise reduction device for offshore wind power

Abstract

The utility model provides a piling noise reduction device for offshore wind power. According to the piling noise reduction device for offshore wind power, a plurality of fixing strips are fixedly connected to the outer surface of a pile body, noise reduction pipes are fixedly connected to the outer surfaces of the fixing strips, pile rings are fixedly connected to the noise reduction pipes and the bottom end of the pile body, filler is arranged between the noise reduction pipes and the pile body, a noise reduction pad is installed at the top end of the pile body, and the pile rings are fixedly connected to the outer surfaces of the fixing strips. The bottom of the noise reduction pad is fixedly connected with a plug, the top of the noise reduction pad is provided with piling equipment, the opposite faces of the outer surface of the noise reduction pad are fixedly connected with fixing blocks with mounting holes, and the other sides of the fixing blocks are provided with mounting strips through mounting bolts. According to the piling noise reduction device for offshore wind power, noise generated by piling is weakened and isolated in a dual mode through the design and then transmitted out, and harm of the piling noise to marine organisms is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pile driving noise reduction, in particular to a pile driving noise reduction device for offshore wind power. Background Art

[0002] Wind power equipment installed at sea generally needs to be piled with piling equipment in the corresponding area at sea before installation, and the pile body is driven into the soil in the sea to increase the stability of the installation of the wind power equipment. In the process of piling at sea, in order to avoid noise from harming marine life, some noise reduction structures are needed to reduce noise. In the public patent 202210170365.3, a noise reduction outer layer and an electromagnetic transmission device are included. The electromagnetic transmission device includes a first annular electromagnet, a second annular electromagnet, a replacement and a pile cap. The bottom of the pile cap is embedded on the inner side of the top of the steel pipe pile. The top of the pile cap is a truncated cone. The outer diameter of the bottom of the pile cap is greater than the outer diameter of the steel pipe pile...Thereby reducing the contact transmission force between the hammer and the replacement, reducing noise from the sound source, avoiding direct contact to reduce noise, and at the same time, bubble curtain walls are arranged on both sides of the shell, and there are multiple reflection angles inside the shell. Sound waves enter the shell and are continuously reflected and consumed. Part of the sound waves enter the inner layer of the shell. In the inner layer, the sound wave energy is absorbed by the hollow elastic sphere and reversely offset, thereby achieving external noise reduction effect.

[0003] The above method reduces the wave transmission by reducing contact transmission and spraying bubbles, but the pile is generally inserted into the seawater and the pile material itself is a conductor of sound conduction. The pile body inserted into the seawater will contact the seawater and conduct the sound of pile driving. The external wrapping method and the bubble crushing method are less effective in reducing the propagation of sound.

[0004] Therefore, it is necessary to provide a piling noise reduction device for offshore wind power to solve the above technical problems. Utility Model Content

[0005] The utility model provides a pile driving noise reduction device for offshore wind power, which solves the problem that the pile body itself is a conductor for sound transmission and the pile driving noise will be transmitted after contacting with seawater, and the traditional wrapping method and bubble crushing method have poor effect on reducing the propagation of sound.

[0006] In order to solve the above technical problems, the utility model provides a pile driving noise reduction device for offshore wind power, comprising: a pile body;

[0007] A plurality of fixing bars are fixedly connected to the outer surface of the pile body, a noise reduction pipe is fixedly connected to the outer surface of the plurality of fixing bars, a pile ring is fixedly connected to the bottom end of the noise reduction pipe and the pile body, and a filler is arranged between the noise reduction pipe and the pile body;

[0008] Noise reduction pad, the noise reduction pad is installed at the top of the pile body, a plug is fixedly connected to the bottom of the noise reduction pad, a pile driving device is arranged on the top of the noise reduction pad, and a fixing block with an installation hole is fixedly connected to each of the opposite sides of the outer surface of the noise reduction pad. The other sides of the fixing blocks are each installed with an installation strip through an installation bolt, and a noise reduction cover is fixedly connected to each of the adjacent sides of the two installation strips;

[0009] The fixing strips are installed at equal intervals on the outer surface of the pile body. There is a space between every two fixing strips for placing the filler. The filler can play a role in sound absorption and noise reduction, weaken the noise of pile driving, reduce the noise decibel, and thus reduce the noise transmitted through the pile body. The plug is inserted into the inside of the through hole. The noise reduction pad can be a non-metallic material resistant to knocking, including polyoxymethylene, polytetrafluoroethylene, nylon, polyurethane, ABS plastic and rubber. The two half noise reduction covers form a cylindrical cover on the two installation strips to wrap the position where the pile body and the pile driving device are in contact.

[0010] Preferably, a docking port is opened at the top of the noise reduction pad, and a through hole is opened at the top of the pile body;

[0011] If necessary, the through hole can penetrate to the bottom end of the pile ring. The docking port is docked with the hammer of the pile driving device.

[0012] Preferably, a sound guiding ring is fixedly connected to the top end of the noise reduction cover, and a bottom sealing ring is fixedly connected to the bottom end of the noise reduction cover;

[0013] The sound guiding ring can discharge the noise from above after reduction.

[0014] Preferably, the noise reduction cover includes a base layer, a moisture absorption layer is arranged on the outer surface of the base layer, and a protective layer is arranged on the outer surface of the moisture absorption layer;

[0015] The base layer is a material with a certain supporting force, and the moisture absorption layer can adsorb the moisture in seawater.

[0016] Preferably, a noise reduction layer is arranged on the inner surface of the base layer, and a second sound absorption layer is arranged on the inner surface of the noise reduction layer;

[0017] The noise reduction layer can reduce the noise decibel.

[0018] Preferably, the noise reduction tube includes a support layer, a sound insulation layer is arranged on the outer surface of the support layer, a first sound absorption layer is arranged on the outer surface of the sound insulation layer, and a wear-resistant layer is arranged on the outer surface of the first sound absorption layer;

[0019] The wear-resistant layer is a wear-resistant metal material. The sound insulation layer and the first sound absorption layer cooperate to reduce the noise decibel, and then conduct it out through the wear-resistant layer to reduce the harm of noise to marine organisms.

[0020] Compared with the related technologies, the pile driving noise reduction device for offshore wind power provided by the present utility model has the following beneficial effects:

[0021] The present utility model provides a pile driving noise reduction device for offshore wind power. In order to reduce the harm of the noise generated by pile driving during the construction of offshore wind power equipment to marine organisms, a plurality of fixing strips are installed on the outer surface of the pile body, and then the noise reduction pipe is fixed on the outer surface of the pile body through the fixing strips, so that there is a fillable space between the pile body and the noise reduction pipe. The bottom ends of the pile body and the noise reduction pipe are connected by a pile ring. Then, a noise reduction pad is installed at the top end of the pile body through bolts. A fixing block with an installation hole is installed on the outer surface of the noise reduction pad. Then, a cover composed of two installation strips and two noise reduction covers is installed on the outer surface of the noise reduction pad through installation bolts, and it is located at the position where the pile body contacts the pile driving equipment, which can reduce the transmission of the noise generated when the pile driving equipment strikes the pile body. Through this design, the noise generated by pile driving is weakened and isolated in a dual manner and then transmitted out, reducing the harm of pile driving noise to marine organisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a preferred embodiment of the pile driving noise reduction device for offshore wind power provided by the present utility model;

[0023] Figure 2 is a schematic structural diagram of the installation bolt provided by the present utility model;

[0024] Figure 3 provided by the present utility model Figure 1 is an enlarged view of the position A shown;

[0025] Figure 4 is a schematic structural diagram of the base layer provided by the present utility model;

[0026] Figure 5 is a schematic structural diagram of the noise reduction layer provided by the present utility model.

[0027] Reference numerals in the figures: 1, pile body; 2, filler; 3, bolt; 4, noise reduction pad; 5, docking port; 6, pile driving equipment; 7, installation hole; 8, fixing block; 9, noise reduction pipe; 901, support layer; 902, sound insulation layer; 903, first sound absorption layer; 904, wear-resistant layer; 10, noise reduction cover; 101, protective layer; 102, moisture absorption layer; 103, base layer; 104, noise reduction layer; 105, second sound absorption layer; 11, installation bolt; 12, installation strip; 13, sound guiding ring; 14, pile ring; 15, bottom sealing ring; 16, fixing strip; 17, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , where Figure 1 is a schematic structural view of a preferred embodiment of the pile driving noise reduction device for offshore wind power provided by the present utility model; Figure 2 is a schematic structural view of the installation bolt provided by the present utility model; Figure 3 is provided by the present utility model Figure 1 An enlarged view of the A position shown in; Figure 4 is a schematic structural view of the base layer provided by the present utility model; Figure 5 is a schematic structural view of the noise reduction layer provided by the present utility model. The pile driving noise reduction device for offshore wind power includes: a pile body 1;

[0030] A plurality of fixing strips 16 are fixedly connected to the outer surface of the pile body 1. A noise reduction pipe 9 is fixedly connected to the outer surface of the plurality of fixing strips 16. A pile ring 14 is fixedly connected to the bottom ends of the noise reduction pipe 9 and the pile body 1. A filler 2 is arranged between the noise reduction pipe 9 and the pile body 1;

[0031] A noise reduction pad 4 is installed at the top of the pile body 1. A plug 3 is fixedly connected to the bottom of the noise reduction pad 4. A pile driving device 6 is arranged at the top of the noise reduction pad 4. A fixing block 8 with an installation hole 7 is fixedly connected to each of the opposite sides of the outer surface of the noise reduction pad 4. An installation strip 12 is installed on the other side of each of the fixing blocks 8 through an installation bolt 11. A noise reduction cover 10 is fixedly connected to each of the adjacent sides of the two installation strips 12;

[0032] The fixing strips 16 are installed at equal intervals on the outer surface of the pile body 1. There is a space between every two fixing strips 16 for placing the filler 2. The filler 2 can play a role in sound absorption and noise elimination, weaken the noise of pile driving, reduce the noise decibel, and thus reduce the noise transmitted through the pile body 1. The plug 3 is inserted into the inside of the through hole 17. The noise reduction pad 4 can be a non-metallic material resistant to knocking, including polyoxymethylene, polytetrafluoroethylene, nylon, polyurethane, ABS plastic, and rubber. The two half noise reduction covers 10 form a cylindrical cover on the two installation strips 12 to wrap the position where the pile body 1 contacts the pile driving device 6, but there is extra space for the pile driving device 6 to move up and down.

[0033] A docking port 5 is opened at the top of the noise reduction pad 4, and a through hole 17 is opened at the top of the pile body 1;

[0034] If necessary, the through hole 17 can penetrate to the bottom end of the pile ring 14. The docking port 5 is docked with the hammer of the pile driving device 6.

[0035] A sound guide ring 13 is fixedly connected to the top end of the noise reduction cover 10, and a bottom sealing ring 15 is fixedly connected to the bottom end of the noise reduction cover 10;

[0036] The sound guide ring 13 can discharge the reduced noise from above, and the inner surface of the bottom sealing ring 15 contacts the outer surface of the noise reduction pipe 9.

[0037] The noise reduction cover 10 includes a base layer 103, a moisture absorption layer 102 is provided on the outer surface of the base layer 103, and a protective layer 101 is provided on the outer surface of the moisture absorption layer 102;

[0038] The base layer 103 is made of a material with a certain supporting force. The moisture absorption layer 102 can adsorb the moisture in seawater, and the protective layer 101 is made of a material resistant to corrosion and erosion.

[0039] A noise reduction layer 104 is provided on the inner surface of the base layer 103, and a second sound absorption layer 105 is provided on the inner surface of the noise reduction layer 104;

[0040] The noise reduction layer 104 can reduce the noise decibels, and the second sound absorption layer 105 is sound absorption sponge.

[0041] The noise reduction pipe 9 includes a support layer 901, a sound insulation layer 902 is provided on the outer surface of the support layer 901, a first sound absorption layer 903 is provided on the outer surface of the sound insulation layer 902, and a wear-resistant layer 904 is provided on the outer surface of the first sound absorption layer 903;

[0042] The wear-resistant layer 904 is made of wear-resistant metal material. The sound insulation layer 902 and the first sound absorption layer 903 cooperate to reduce the noise decibels, and then conduct them out through the wear-resistant layer 904 to reduce the harm of noise to marine organisms. The support layer 901 is made of metal material or...

[0043] The working principle of the pile driving noise reduction device for offshore wind power provided by the present utility model is as follows:

[0044] Install a plurality of fixing bars 16 on the outer surface of the pile body 1, and then fix the noise reduction pipe 9 on the outer surface of the pile body 1 through the fixing bars 16, so that there is a space that can be filled between the pile body 1 and the noise reduction pipe 9. The bottom ends of the pile body 1 and the noise reduction pipe 9 are connected by a pile ring 14. Then, the noise reduction pad 4 is installed on the top end of the pile body 1 through a bolt 3. A fixing block 8 with a mounting hole 7 is installed on the outer surface of the noise reduction pad 4. Then, a cover composed of two mounting bars 12 and two noise reduction covers 10 is installed on the outer surface of the noise reduction pad 4 through a mounting bolt 11, and it is located at the position where the pile body 1 contacts the pile driving equipment 6, which can reduce the transmission caused by the pile driving equipment 6 knocking on the pile body 1. During actual use, first fill the sound-absorbing filler 2 between the pile body 1 and the noise reduction pipe 9, then install the pile body 1 at the corresponding position, and then the pile driving equipment 6 can be started to drive the pile. During the pile driving process, the sound of the pile body 1 and the pile driving equipment 6 knocking will be preferentially reduced by the noise reduction pad 4, and then the transmitted noise will be isolated and adsorbed by the noise reduction cover 10, reducing the conduction to the outside world. The noise transmitted through the pile body 1 will be adsorbed and blocked by the filler 2 to reduce the noise, and then weakened by the noise reduction pipe 9, so that the transmitted noise reaches the range acceptable to marine organisms.

[0045] Compared with the related technology, the pile driving noise reduction device for offshore wind power provided by the present invention has the following beneficial effects:

[0046] In order to reduce the harm of the noise generated by pile driving during the construction of offshore wind power equipment to marine organisms, a plurality of fixing bars 16 are installed on the outer surface of the pile body 1, and then the noise reduction pipe 9 is fixed on the outer surface of the pile body 1 through the fixing bars 16, so that there is a space that can be filled between the pile body 1 and the noise reduction pipe 9. The bottom ends of the pile body 1 and the noise reduction pipe 9 are connected by a pile ring 14. Then, the noise reduction pad 4 is installed on the top end of the pile body 1 through a bolt 3. A fixing block 8 with a mounting hole 7 is installed on the outer surface of the noise reduction pad 4. Then, a cover composed of two mounting bars 12 and two noise reduction covers 10 is installed on the outer surface of the noise reduction pad 4 through a mounting bolt 11, and it is located at the position where the pile body 1 contacts the pile driving equipment 6, which can reduce the transmission caused by the pile driving equipment 6 knocking on the pile body 1. Through this design, the noise generated by pile driving is weakened and isolated in a dual manner and then transmitted, reducing the harm of pile driving noise to marine organisms.

[0047] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A piling noise reduction device for offshore wind power, characterized in that: include: pile body; A plurality of fixing bars are fixedly connected to the outer surface of the pile body, a noise reduction pipe is fixedly connected to the outer surface of the plurality of fixing bars, a pile ring is fixedly connected to the bottom end of the noise reduction pipe and the pile body, and a filler is arranged between the noise reduction pipe and the pile body; A noise reduction pad is installed on the top of the pile body, a bolt is fixedly connected to the bottom of the noise reduction pad, a piling device is arranged on the top of the noise reduction pad, a fixing block with a mounting hole is fixedly connected to the opposite side of the outer surface of the noise reduction pad, a mounting strip is installed on the other side of the fixing block through a mounting bolt, and a noise reduction cover is fixedly connected to the adjacent sides of the two mounting strips.

2. The piling noise reduction device for offshore wind power according to claim 1, characterized in that: The top of the noise reduction pad is provided with a docking port, and the top of the pile body is provided with a through opening.

3. The piling noise reduction device for offshore wind power according to claim 1, characterized in that: The top end of the noise reduction cover is fixedly connected with a sound guide ring, and the bottom end of the noise reduction cover is fixedly connected with a bottom sealing ring.

4. The piling noise reduction device for offshore wind power according to claim 1, characterized in that: The noise reduction cover comprises a base layer, a moisture absorbing layer is arranged on the outer surface of the base layer, and a protective layer is arranged on the outer surface of the moisture absorbing layer.

5. The piling noise reduction device for offshore wind power according to claim 4, characterized in that: The inner surface of the base layer is provided with a noise reduction layer, and the inner surface of the noise reduction layer is provided with a second sound absorbing layer.

6. The piling noise reduction device for offshore wind power according to claim 1, characterized in that: The noise reduction pipe comprises a supporting layer, a sound insulation layer is arranged on the outer surface of the supporting layer, a first sound absorption layer is arranged on the outer surface of the sound insulation layer, and a wear-resistant layer is arranged on the outer surface of the first sound absorption layer.

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