A piling noise reduction air curtain generating device

Abstract

The utility model relates to the technical field of offshore piling, and specifically, to a piling noise reduction air curtain generating device, comprising a plurality of air curtain generating units that can be connected to each other and can be arranged on one side of a steel pipe pile, and at least part of the air curtain generating units can be detachably connected to a pile stabilizing platform. The present application can improve the stability of the gas pipeline in seawater by means other than piling, and compared with the piling method, the construction difficulty and construction cost are reduced; the present application can ensure that at least part of the air curtain generating units can maintain a certain stability in seawater by connecting at least part of the air curtain generating units to the pile stabilizing platform, thereby making at least part of the bubble curtain have better stability, thereby improving the noise reduction effect of the construction process.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore piling, in particular to a piling noise reduction air curtain generating device. Background Art

[0002] At present, the most commonly used foundation type for offshore wind farms at home and abroad is steel pipe piles, which are usually driven by impact hammers or vibrating hammers. The energy of pile driving hammers is transmitted in the water in the form of sound waves, which will generate huge noise during the driving process. The noise transmitted in the seawater will cause certain harm to marine life. In order to protect marine life from the harm of construction noise, the research and application of noise reduction measures are very important.

[0003] Bubble curtain noise reduction technology is a common noise reduction solution in offshore piling. The bubble curtain introduces air into the underwater pipeline through an air compressor, generating rising bubbles at the pipeline opening, thereby forming a gas-liquid two-phase flow with a certain thickness. The purpose of noise reduction is achieved by using the reflection, transmission and absorption of sound waves by bubbles.

[0004] However, the underwater pipelines used to transport air are easily affected by water flow and waves, resulting in poor stability. Additional piling is usually required to improve their underwater stability, which makes construction difficult and costly. Utility Model Content

[0005] In view of the above problems existing in the prior art, the utility model provides an air curtain generating device for piling noise reduction.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A pile driving noise reduction air curtain generating device comprises a plurality of air curtain generating units which can be connected to each other and can be arranged on one side of a steel pipe pile, and at least part of the air curtain generating units can be detachably connected to a pile stabilizing platform.

[0008] Preferably, the air curtain generating unit that can be detachably connected to the pile stabilizing platform is at least partially provided with a first clamping piece; and at least part of the auxiliary piles of the pile stabilizing platform are provided with a second clamping piece that can be clamped and matched with the first clamping piece.

[0009] Preferably, the cross section of the first clamping member is circular, and the cross section of the second clamping member is C-shaped;

[0010] The first clamping member can be inserted into the second clamping member from the axial direction of the auxiliary pile.

[0011] Preferably, the air curtain generating unit comprises a plurality of air supply pipes, and at least a portion of the plurality of air supply pipes is provided with at least one air outlet hole along its own axial and / or circumferential direction.

[0012] Preferably, at least part of the plurality of gas delivery pipes of each of the air curtain generating units can be connected via a transfer pipe;

[0013] And / or, at least part of the air supply pipes in the air curtain generating units that can be connected to each other can be connected via the transfer pipe.

[0014] Preferably, the invention further comprises a gas delivery device which can be connected to the gas delivery pipe via a connecting pipe, and the gas delivery device can provide gas to the gas delivery pipe.

[0015] Preferably, the air curtain generating unit further comprises a plurality of supporting members, wherein the plurality of supporting members are arranged at at least two different angles with respect to the horizontal direction, so that the plurality of supporting members can be fixed to form an integral structure;

[0016] At least part of the gas delivery pipe is arranged on at least part of the support member.

[0017] Preferably, it further comprises at least one anti-sinking plate; at least part of the air curtain generating unit is connected to the anti-sinking plate through at least part of the supporting member;

[0018] At least part of the gas delivery pipe may be disposed on at least one of the anti-sinking plates.

[0019] Preferably, the gas pipe is connected to at least one of the support member and the anti-sinking plate by welding and / or hooking.

[0020] Preferably, at least part of the air curtain generating units are provided with hanging rings.

[0021] The utility model has at least the following beneficial effects:

[0022] 1. The present application can improve the stability of the gas pipeline in seawater by using methods other than piling. Compared with the piling method, the construction difficulty and construction cost are reduced.

[0023] 2. By connecting at least part of the air curtain generating unit to the pile stabilizing platform, the present application can ensure that at least part of the air curtain generating unit can maintain a certain stability in the seawater, thereby making at least part of the bubble curtain have better stability, thereby improving the noise reduction effect of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A first schematic diagram of a pile driving noise reduction air curtain generating device, a pile stabilizing platform and a steel pipe pile in some embodiments of the present application is shown;

[0025] Figure 2A second schematic diagram of a pile driving noise reduction air curtain generating device, a pile stabilizing platform and a steel pipe pile in some embodiments of the present application is shown;

[0026] Figure 3 A schematic diagram of a piling noise reduction air curtain generating device in some embodiments of the present application is shown;

[0027] Figure 4 A schematic diagram showing the connection between the first clamping member on the second supporting member and the second clamping member on the auxiliary pile in some embodiments of the present application is shown;

[0028] Figure 5 A schematic diagram of a gas delivery pipe provided with a gas outlet in some embodiments of the present application is shown;

[0029] Figure 6 A schematic diagram showing that the projections of all gas pipes in a single gas curtain generating unit on a plane are parallel to each other after the gas outlet holes are hidden in some embodiments of the present application, and all adjacent gas pipes are connected through transfer pipes;

[0030] Figure 7 A schematic diagram showing that the projections of all gas delivery pipes in a single gas curtain generating unit intersect on a plane after the gas outlet holes are hidden in some embodiments of the present application, and the intersection angles are all different;

[0031] Figure 8 A schematic diagram showing that all gas delivery pipes included in the gas curtain generating units that can be connected to each other in some embodiments of the present application are connected through transfer pipes;

[0032] Fig. 9 A schematic diagram showing that some of the gas pipes included in the interconnectable air curtain generating units in some embodiments of the present application are connected via transfer pipes.

[0033] The parts indicated by the numbers in the accompanying drawings are as follows:

[0034] 100, steel pipe pile; 210, anti-sinking seat; 220, auxiliary pile; 221, second clamping piece; 230, pile gripper; 300, air curtain generating unit; 310, first clamping piece; 320, air pipe; 321, air outlet; 330, transfer tube; 340, support member; 341, first support member; 342, second support member; 350, anti-sinking plate; 360, reinforcing rod. DETAILED DESCRIPTION

[0035] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0036] like Figure 1-2As shown, the most commonly used foundation type for offshore wind farms is the steel pipe pile 100. The steel pipe pile 100 is usually driven by an impact hammer or a vibration hammer. When the steel pipe pile 100 is driven, a pile stabilizing platform is provided near the steel pipe pile 100 to improve the stability of the steel pipe pile 100 during the driving process.

[0037] The above-mentioned pile stabilizing platform specifically includes an anti-sinking seat 210 at the bottom, and four auxiliary piles 220 arranged on the anti-sinking seat 210, and two pile grippers 230 are arranged on the auxiliary piles 220 along their axial direction; when in use, the steel pipe pile 100 and the pile stabilizing platform are both placed in the sea water, wherein the two pile grippers 230 on the pile stabilizing platform are both sleeved outside the steel pipe pile 100, so that the pile stabilizing platform can assist in improving the stability of the steel pipe pile 100 in the sea water through the two pile grippers 230, thereby improving the stability of the driving of the steel pipe pile 100.

[0038] However, since huge noise is generated during the process of driving the steel pipe pile 100 and the noise can be propagated in the water in the form of sound waves, it may cause certain harm to marine life.

[0039] In order to protect marine life from construction noise, noise reduction is usually achieved by introducing air into the water to form a bubble curtain. Since bubbles can reflect, transmit and absorb sound waves, better noise reduction effects can be achieved.

[0040] However, the air pipe 320 is required to introduce air into the sea, that is, the air pipe 320 is placed in the seawater to transport the air into the seawater through the air pipe 320 and finally form a bubble curtain. The air pipe 320 is easily affected by water flow, waves, etc. in the seawater, which makes the air pipe 320 less stable in the seawater, thereby resulting in poor noise reduction effect of the bubble curtain. Generally, in order to improve the stability of the air pipe 320 in the seawater, piling is used to assist in improving the stability of the air pipe 320, but this operation will increase the difficulty and cost of construction.

[0041] This embodiment provides a piling noise reduction air curtain generating device, which can improve the stability of the gas pipeline 320 in seawater by means other than piling. Compared with the piling method, the construction difficulty and construction cost are reduced.

[0042] Combination Figure 1-3As shown, the piling noise reduction air curtain generating device includes a plurality of air curtain generating units 300 that can be arranged on one side of the steel pipe pile 100. During construction, the plurality of air curtain generating units 300 are placed in the seawater and are located on different sides of the steel pipe pile 100 for use. The air curtain generating units 300 can input gas into the seawater, so that bubbles appear in the seawater near the air curtain generating units 300. Under the action of buoyancy, the bubbles in the seawater float up, and then form a bubble curtain around the steel pipe pile 100, through which the construction process can be noise-reduced.

[0043] Furthermore, multiple air curtain generating units 300 can be interconnected to form an integrated structure. Specifically, multiple air curtain generating units 300 can be connected by welding, bolting or snap-on connection. Of course, multiple air curtain generating units 300 connected by welding, bolting and snap-on connection can also be disassembled by cutting, etc., so that multiple air curtain generating units 300 can be connected to each other or separated from each other.

[0044] Since the air curtain generating unit 300 plays a role in reducing noise during the process of driving the steel pipe pile 100, it is preferred that at least some of the multiple air curtain generating units 300 are connected to wrap around the circumference of the steel pipe pile 100, such as Figure 1 As shown, specifically, after at least some of the air curtain generating units 300 are connected, the whole is roughly incomplete or complete cylindrical and is sleeved outside the steel pipe pile 100. Of course, at least some of the air curtain generating units 300 can also be overlapped and connected to form a double-layer bubble curtain. It can be understood that whether it is the above-mentioned wrapping of the circumference of the steel pipe pile 100 or the formation of a double-layer bubble curtain, the noise reduction effect of the construction process can be better improved.

[0045] Furthermore, at least some of the multiple air curtain generating units 300 arranged on one side of the steel pipe pile 100 can be detachably connected to the pile stabilizing platform. By connecting at least some of the air curtain generating units 300 to the pile stabilizing platform, it can be ensured that at least some of the air curtain generating units 300 can maintain a certain stability in the seawater, so that at least some of the bubble curtains have better stability, thereby improving the noise reduction effect of the construction process. In particular, for example, in this embodiment, multiple air curtain generating units 300 are interconnected to form a whole, and then connected to the pile stabilizing platform, which can ensure that all of the air curtain generating units 300 have better stability, and the bubble curtain formed thereby can also have better stability, thereby improving the noise reduction effect of the construction process.

[0046] In some embodiments, a first clamping component 310 is provided on at least part of the air curtain generating units 300 that can be detachably connected to the pile stabilizing platform; a second clamping component 221 is provided on at least part of the auxiliary piles 220 of the pile stabilizing platform, and the second clamping component 221 can be engaged with the first clamping component 310 to realize the connection and use of at least part of the air curtain generating unit 300 and the pile stabilizing platform, so that the stability of at least part of the air curtain generating unit 300 can be better improved with the assistance of the pile stabilizing platform.

[0047] Of course, improving stability by connecting with a pile stabilizing platform is only one method provided by this embodiment. In actual construction, other methods can be used to assist in improving the stability of the air curtain generating unit 300. For example, part of the air curtain generating unit 300 is connected to a pile stabilizing platform to improve stability, while another part of the air curtain generating unit 300 can be improved in seawater by piling or other methods.

[0048] Through the clamping cooperation between the first clamping member 310 and the second clamping member 221, the detachable connection between the air curtain generating unit 300 and the pile stabilizing platform can be better realized, which facilitates the installation and disassembly between the air curtain generating unit 300 and the pile stabilizing platform and can reduce the construction difficulty to a certain extent.

[0049] It can be understood that at least some of the multiple air curtain generating units 300 are provided with a first clip 310. Preferably, the first clip 310 can be provided on the air curtain generating unit 300 closest to the pile stabilizing platform, or the first clip 310 can be provided on all the air curtain generating units 300. As long as the finally formed bubble curtain can have a certain stability and a better noise reduction effect, there is no special limitation on this.

[0050] In some embodiments, the cross section of the first clamping member 310 disposed on the air curtain generating unit 300 is circular, and the cross section of the second clamping member 221 disposed on the auxiliary pile 220 is C-shaped. During the construction process, when installing the air curtain generating unit 300, the first clamping member 310 on the air curtain generating unit 300 is aligned with the second clamping member 221 on the auxiliary pile 220, so that the first clamping member 310 can maintain a one-to-one correspondence with the second clamping member 221, thereby allowing the air curtain generating unit 300 to move along the axial direction of the auxiliary pile 220, so that the first clamping member 310 can be inserted into the second clamping member 221 from the axial direction of the auxiliary pile 220, thereby achieving installation between at least part of the air curtain generating unit 300 and the pile stabilizing platform, and when disassembly is required, the air curtain generating unit 300 only needs to be moved in the opposite direction along the axial direction of the auxiliary pile 220, which is convenient for disassembly and assembly.

[0051] It can be understood that when the first clamping member 310 with a circular cross-section is inserted into the second clamping member 221 with a C-shaped cross-section, the second clamping member 221 can hold the first clamping member 310 in the radial direction of the auxiliary pile 220, and then limit the first clamping member 310 in the radial direction of the auxiliary pile 220, thereby limiting the position of the air curtain generating unit 300, so that even in the environment of water flow and surge, it can maintain better stability without too much shaking, for example, Figure 4 As shown, in this embodiment, the cross section of the first clamping member 310 is circular, and the cross section of the second clamping member 221 is also an incomplete circle matching the first clamping member 310. Further, the cross section of the second clamping member 221 is not less than half of a circle, so that the opening of the second clamping member 221 in the radial direction of the auxiliary pile 220 can be in a constricted shape to achieve the limitation of the first clamping member 310. In order to further improve the clamping effect between the first clamping member 310 and the second clamping member 221, it is preferred to set the cross-sectional shape and size of the first clamping member 310 to match the cross-sectional shape and size of the second clamping member 221, so that the first clamping member 310 and the second clamping member 221 can keep the side walls in contact with each other in the plug-in state, so that there can also be a certain friction resistance between the first clamping member 310 and the second clamping member 221, thereby improving the stability of the clamping between the first clamping member 310 and the second clamping member 221, so as to improve the stability of the air curtain generating unit 300 in seawater.

[0052] In some embodiments, the air curtain generating unit 300 includes a plurality of air delivery pipes 320, and at least some of the plurality of air delivery pipes 320 are provided with at least one air outlet 321 along their own axial and / or circumferential directions. Figure 5 A schematic diagram of a gas pipe 320 provided with gas outlets 321 is shown. In a specific use process, the gas curtain generating unit 300 is placed in seawater, so that a plurality of gas pipes 320 are also in the seawater; by providing gas to the gas pipes 320, at least part of the gas pipes 320 can input gas into the seawater through the gas outlets 321 thereon to form bubbles, and then the bubbles float in the seawater to form a bubble curtain.

[0053] It can be understood that the air outlet holes 321 can be arranged along the circumferential direction of the air pipe 320, or can be arranged along the axial direction of the air pipe 320, and both can form a bubble curtain, which is not particularly limited here; but preferably, a certain number of air outlet holes 321 are provided on the air pipe 320, so that the air outlet holes 321 can be arranged more densely, so that the bubbles formed at the corresponding air pipe 320 are denser, so as to form a bubble curtain with dense bubbles, so that the bubble curtain can have a better noise reduction effect.

[0054] Furthermore, the first clamping member 310 may be arranged to be connected to the gas pipe 320 , so as to achieve a detachable connection between the gas pipe 320 and the auxiliary pile 220 , which is convenient for use.

[0055] In some embodiments, at least some of the multiple air delivery pipes 320 included in each air curtain generating unit 300 may be connected via a transfer pipe 330. Since the specific arrangement of the air delivery pipes 320 included in each air curtain generating unit 300 is not limited in this embodiment, Figure 6-7 As shown, the projections of the air delivery pipes 320 included in each air curtain generating unit 300 on a plane may be parallel to each other or may intersect, and the intersection angles may be the same or different; for example, Figure 6 As shown, the gas pipes 320 included in each air curtain generating unit 300 are in the same vertical plane and are arranged parallel to each other. Adjacent gas pipes 320 can be connected by a transfer tube 330, so that the gas pipes 320 can be interconnected, so that the gas can flow in each gas pipe 320, and gas is provided to each gas pipe 320 at the same time. Since the gas pipes 320 are in the same vertical plane, the bubbles generated at the multiple gas pipes 320 can be enriched in one place, so that a bubble curtain with dense bubbles can be formed at the corresponding air curtain generating unit 300, which has a better noise reduction effect.

[0056] In some embodiments, Figure 8-9 As shown, at least some of the gas pipes 320 included in the interconnected air curtain generating units 300 can be connected via a transfer tube 330, so that the gas pipes 320 in different air curtain generating units 300 can be interconnected, so that the gas can flow in different air curtain generating units 300, thereby providing gas to multiple air curtain generating units 300 at the same time.

[0057] In some embodiments, a gas delivery device (not shown in the figure) is also required during construction. The gas delivery device can be connected to the gas pipeline 320 in the seawater through a connecting pipe (not shown in the figure), and the gas delivery device can provide gas to the gas pipeline 320; specifically, in this embodiment, the gas delivery device adopts an air compressor, and the air compressor can introduce gas into the gas pipeline 320 through the connecting pipe for use.

[0058] The number of gas delivery devices needs to be adjusted according to actual usage, and specifically needs to be determined according to the connection relationship between the gas delivery pipes 320:

[0059] When all the gas delivery pipes 320 included in the multiple gas curtain generating units 300 form a gas delivery line through the transfer pipe 330, in this case, only one gas delivery device may be provided;

[0060] When the gas supply pipes 320 included in the multiple air curtain generating units 300 are not interconnected, and all the gas supply pipes 320 included in each air curtain generating unit 300 form a gas supply line through the transfer pipe 330, then in this case, multiple gas supply devices need to be provided, and the number of gas supply devices should correspond to the number of the multiple air curtain generating units 300, and each gas supply device needs to be connected to an air curtain generating unit 300 through a connecting pipe, that is, each air curtain generating unit 300 has a gas supply device for independent gas supply;

[0061] Of course, a gas transmission line can also be supplied with gas by setting up multiple gas transmission devices. Supplying gas with multiple gas transmission devices can improve the efficiency of bubble production, and thus the noise reduction effect of the corresponding bubble curtain is also improved accordingly; based on the above, the number of gas transmission devices must not be less than the number of gas transmission lines in the piling noise reduction air curtain generating device.

[0062] In some embodiments, each air curtain generating unit 300 further includes a plurality of supporting members 340, the plurality of supporting members 340 can be arranged at at least two different angles in the horizontal direction, and the plurality of supporting members 340 can be fixed to each other to form a whole, for example, Figure 1-3 As shown, in this embodiment, the plurality of support members 340 are divided into a first support member 341 and a second support member 342, wherein the first support member 341 is parallel to the horizontal direction, and the second support member 342 is perpendicular to the horizontal direction, and the plurality of first support members 341 and the plurality of second support members 342 are fixed as a whole by welding. Further, at least part of the gas pipes 320 are arranged on at least part of the support members 340, so that the plurality of support members 340 can maintain the position state between at least part of the gas pipes 320, avoid excessive drifting or collision of the tubular gas pipes 320 in the seawater under the influence of water flow or surge, etc., can improve the stability of at least part of the gas pipes 320, thereby improving the stability of the bubble curtain and improving the noise reduction effect.

[0063] Preferably, in this embodiment, all the gas pipes 320 in each air curtain generating unit 300 are arranged on the support member 340 , so that the support member 340 can assist in stabilizing the position state between all the gas pipes 320 .

[0064] Further, such as Figure 4As shown, in this embodiment, the first clamping member 310 is connected to the second support member 342, so that the second support member 342 and the auxiliary pile 220 can be detachably connected, and the detachable connection between the gas pipe 320 and the auxiliary pile 220 is indirectly realized, which is convenient for use.

[0065] In some embodiments, Figure 2-3 As shown, the piling noise reduction air curtain generating device also includes at least one anti-sinking plate 350 , and at least part of the air curtain generating unit 300 is connected to the anti-sinking plate 350 through at least part of the supporting member 340 .

[0066] It is understandable that at least part of the air curtain generating units 300 can be connected to the anti-sinking plate 350, and the anti-sinking plate 350 can provide a certain buoyancy for the air curtain generating units 300, so that the air curtain generating units 300 can have a certain height in the sea water and will not sink. In this embodiment, the support members 340 in the multiple air curtain generating units 300 are welded to each other, so that the multiple air curtain generating units 300 can form a whole, so that after the anti-sinking plate 350 is connected to at least part of the air curtain generating units 300, the anti-sinking plate 350 can act on all the air curtain generating units 300, and improve the stability of the support members 340 and the gas pipe 320.

[0067] Furthermore, since each air curtain generating unit 300 has a plurality of support members 340, and the plurality of support members 340 are interconnected, at least some of the support members 340 are connected to the anti-sinking plate 350, so that the air curtain generating unit 300 can be connected to the anti-sinking plate 350 as a whole, thereby enabling the anti-sinking plate 350 to act on the entire air curtain generating unit 300, thereby improving the stability of the air curtain generating unit 300.

[0068] Of course, the number of the anti-sinking plates 350 can also be adjusted according to actual needs to achieve a better auxiliary effect.

[0069] Furthermore, at least a portion of the gas pipe 320 may be disposed on the anti-sinking plate 350 , so that the anti-sinking plate 350 can also play the same role as the supporting member 340 , which will not be described in detail herein.

[0070] In some embodiments, the gas delivery pipe 320 may be connected to the support member 340 and / or the anti-sinking plate 350 by welding and / or hooking.

[0071] When the gas pipe 320 , the support member 340 and the anti-sinking plate 350 are made of metal, the gas pipe 320 can be directly connected to the support member 340 and / or the anti-sinking plate 350 by welding.

[0072] When the material is not considered, a hook may be provided on the support member 340 and / or the anti-sinking plate 350 to hook the gas pipe 320 on the support member 340 and / or the anti-sinking plate 350 for use.

[0073] In some embodiments, at least part of the air curtain generating unit 300 is provided with a lifting ring (not shown in the figure), through which the air curtain generating unit 300 can be better lifted and placed in the sea water. The air curtain generating unit 300 can be moved through the lifting ring, so that the air curtain generating unit 300 can be connected to the pile stabilizing platform for easy use.

[0074] In some embodiments, Figure 1-3 As shown, in order to further improve the stability of the connection between the first support member 341 and the second support member 342, a reinforcing rod 360 is further provided, and both ends of the reinforcing rod 360 are respectively connected to the first support member 341 and the second support member 342, thereby improving the stability of the overall mechanism.

[0075] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A piling noise reduction air curtain generating device, characterized in that: It comprises a plurality of air curtain generating units which can be connected to each other and can be arranged on one side of the steel pipe pile, and at least some of the air curtain generating units can be detachably connected to the pile stabilizing platform; The air curtain generating unit which can be detachably connected to the pile stabilizing platform is at least partially provided with a first clamping piece; at least part of the auxiliary piles of the pile stabilizing platform are provided with a second clamping piece which can be clamped and matched with the first clamping piece; The cross section of the first clamping member is circular, and the cross section of the second clamping member is C-shaped; The first clamping member can be inserted into the second clamping member from the axial direction of the auxiliary pile.

2. The piling noise reduction air curtain generating device according to claim 1, characterized in that: The air curtain generating unit comprises a plurality of air supply pipes, and at least a portion of the plurality of air supply pipes is provided with at least one air outlet along its own axial and / or circumferential direction.

3. The piling noise reduction air curtain generating device according to claim 2, characterized in that: At least part of the plurality of gas delivery pipes of each of the air curtain generating units may be connected via a transfer pipe; And / or, at least part of the air supply pipes in the air curtain generating units that can be connected to each other can be connected via the transfer pipe.

4. The piling noise reduction air curtain generating device according to claim 2, characterized in that: It also includes a gas delivery device that can be connected to the gas delivery pipe through a connecting pipe, and the gas delivery device can provide gas to the gas delivery pipe.

5. The piling noise reduction air curtain generating device according to claim 2, characterized in that: The air curtain generating unit further comprises a plurality of supporting members, wherein the plurality of supporting members are arranged in at least two different angles with respect to the horizontal direction, so that the plurality of supporting members can be fixed to form an integral structure; At least part of the gas delivery pipe is arranged on at least part of the support member.

6. The piling noise reduction air curtain generating device according to claim 5, characterized in that: It also includes at least one anti-sinking plate; at least part of the air curtain generating unit is connected to the anti-sinking plate through at least part of the supporting member; At least part of the gas delivery pipe may be arranged on at least one of the anti-sinking plates.

7. The piling noise reduction air curtain generating device according to claim 6, characterized in that: The gas delivery pipe is connected to at least one of the support member and the anti-sinking plate by welding and / or hooking.

8. The piling noise reduction air curtain generating device according to claim 1, characterized in that: At least part of the air curtain generating units are provided with hanging rings.

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