A marine piling noise reduction bubble curtain device

Abstract

The utility model relates to a kind of offshore piling noise reduction bubble curtain device. Including multiple curtain segments;Curtain segment includes the self-floater sinking pipe with rubber ball inside in bottom, the gas outlet rubber tube with air hole is equipped above self-floater sinking pipe, multiple hoop fixed connection is used between self-floater sinking pipe and gas outlet rubber tube;Pipe end head is installed in the end of self-floater sinking pipe and gas outlet rubber tube, and pipe end head includes end block, gas pipe port is equipped on the side upper portion of end block, and sinking pipe port is equipped on the side lower portion, the end of gas outlet rubber tube is inserted with gas pipe port and sealing connection, the end of self-floater sinking pipe is inserted with sinking pipe port and sealing connection, top interface is equipped with the penetration of gas pipe port on the top of end block, back interface is equipped with the penetration of sinking pipe port on the back of end block. The utility model provides a kind of offshore piling noise reduction bubble curtain device, by weakening the curtain of noise around construction area to reduce the influence of noise on marine ecology in the process of large single pile sinking.

Description

Technical Field

[0001] This utility model belongs to the field of offshore steel pipe pile foundation construction technology, and in particular relates to an offshore pile driving noise reduction bubble curtain device. Background Technology

[0002] Among the various foundation types for offshore wind turbines, monopile foundations are widely used in my country's offshore wind farm construction due to their advantages such as factory-made assembly, low cost, convenient construction, no need for seabed preparation, and simple installation. Statistics from major offshore wind farms show that monopile foundations account for over 65%. As the foundation for offshore wind turbines, the verticality and horizontal position of monopiles need to be controlled during construction. Noise is generated during monopile driving, and this noise propagates in the construction waters, harming the marine environment and marine life, disrupting the marine ecological balance. When there are marine aquaculture farms near the construction site, the aforementioned construction noise needs to be well controlled to avoid economic losses due to offshore piling construction.

[0003] Existing technologies lack control measures for the aforementioned construction noise, necessitating targeted development and design to reduce the impact of noise on the marine ecosystem during the driving of large monopile piles by constructing noise-reducing curtains around the construction area. Summary of the Invention

[0004] The purpose of this invention is to provide a noise reduction bubble curtain device for offshore piling, which reduces the impact of noise on the marine ecosystem during the driving of large monopile by constructing a noise-reducing curtain around the construction area.

[0005] The technical solution adopted by this utility model is as follows: a bubble curtain device for noise reduction in marine piling, which adopts multiple curtain segments sequentially spliced ​​to form a ring structure located outside the construction area, and adjacent curtain segments are detachably connected; the curtain segment includes a self-floating sinking tube with a rubber ball inside located at the bottom, and an air outlet rubber tube with air holes above the self-floating sinking tube, and the self-floating sinking tube and the air outlet rubber tube are fixedly connected by multiple clamps; a pipe end is installed at the end of the self-floating sinking tube and the air outlet rubber tube, the pipe end includes an end block, an air pipe port is provided on the upper side of the end block, and a sinking tube port is provided on the lower side of the end block, the end of the air outlet rubber tube is inserted into and sealed to the air pipe port, the end of the self-floating sinking tube is inserted into and sealed to the sinking tube port, a top interface communicating with the air pipe port is provided on the top of the end block, and a back interface communicating with the sinking tube port is provided on the back of the end block, the top interface and the back interface at one end are connected to the air supply pipe, and the back interface at the other end is connected to the water supply pipe.

[0006] Preferably, the vent hose includes an outer vent hose and an inner vent hose, and the self-floating tube, the outer vent hose, and the inner vent hose are fixedly connected by the clamps located at the left, center, and right positions respectively.

[0007] Preferably, the tube end has two tracheal ports and the two tracheal ports are simultaneously connected to the top interface through a channel located inside the end block, and the submerged tube port is connected to the back interface through a channel located inside the end block.

[0008] Preferably, a back plate with a connection hole is provided on the back of the end block at the end of the tube, a connecting plate is provided between adjacent curtain segments, a connection hole is provided at the end of the connecting plate, the end of the connecting plate overlaps with the back plate and is connected by bolts that pass through the connection hole.

[0009] Preferably, the clamp is composed of three clamp units spliced ​​together, with the top of the lower clamp unit fixedly connected to the bottom of the two upper clamp units.

[0010] Preferably, a connecting ring for connecting the cable is provided on the outside of the clamp located in the middle.

[0011] The advantages and positive effects of this utility model are: This invention provides a noise reduction bubble curtain device for offshore piling. It employs multiple curtain segments spliced ​​into a ring structure, and these segments can be easily disassembled and assembled, making it highly portable and easy to assemble at the piling site. After completion, it can be easily moved to the next construction location. Each curtain segment consists of a self-floating tube that sinks when filled with water and floats when inflated, and an air outlet hose that discharges air through vents. When the curtain device sinks to the bottom and discharges air through the air outlet hose, it forms a ring-shaped bubble curtain. This ring-shaped bubble curtain surrounds the piling area, thus limiting the propagation of piling noise in the water and reducing noise levels. This reduces the impact of noise on the marine ecosystem during large monopile driving, achieving environmentally friendly construction. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of this utility model; Figure 2 yes Figure 1 A top-view structural diagram of a single curtain segment; Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure at the clamp position; Figure 4 yes Figure 2 A side view of the structure of the middle tube end; Figure 5 yes Figure 2 A schematic diagram of the main structure of the middle tube end.

[0013] In the picture: 1. Self-floating sinking pipe; 2. Outer air outlet hose; 3. Inner air outlet hose; 4. Air hole; 5. Rubber ball; 6. Clamp; 7. Pipe end; 7-1. End block; 7-2. Back plate; 7-3. Top interface; 7-4. Air pipe port; 7-5. Sinking pipe port; 7-6. Back interface; 8. Connecting plate; 9. Connecting ring; 10. Air supply pipe; 11. Water supply pipe; 12. Pile location; 13. Pile driving equipment. Detailed Implementation

[0014] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0015] Please see Figure 1 The present invention relates to a marine piling noise reduction bubble curtain device, which uses multiple curtain segments to form a ring structure located outside the construction area, and adjacent curtain segments can be detachably connected. Figure 1 As shown, pile position 12 is located in the center, and pile driving equipment 13 is located to the side of the pile position. The pile driving construction area is located inside the annular bubble curtain device. During the pile driving construction process, an annular bubble curtain is formed on the outside of the construction area to reduce and limit the spread of construction noise in the water, thereby achieving the purpose of protecting the marine ecological environment and realizing environmentally friendly construction.

[0016] Because the multiple curtain segments can be disassembled and assembled, this bubble curtain device can be easily transferred to the construction site, quickly constructing a ring structure and putting it into use. After the completion of single-pile driving, it can be quickly and conveniently transferred to the next construction area and put into use immediately. To ensure sufficient and reliable noise reduction, multiple bubble curtain devices can be set up on the construction site, arranged from the inside out in an approximately concentric circle. This forms multiple bubble curtains on the outer side of the piling area, effectively limiting and reducing construction noise.

[0017] Please see Figure 2 and Figure 3 It can be seen that: The curtain segment includes a self-floating tube 1 located at the bottom, with a rubber ball 5 inside. Above the self-floating tube 1 is an air outlet tube with an air hole 4. The self-floating tube 1 and the air outlet tube are fixedly connected by multiple clamps 6. In this embodiment, the air outlet tube includes an outer air outlet tube 2 and an inner air outlet tube 3. The self-floating tube 1, the outer air outlet tube 2, and the inner air outlet tube 3 are fixedly connected by clamps 3 located at the left, center, and right positions, respectively.

[0018] The self-floating tube 1 is used to support the outer air outlet tube 2 and the inner air outlet tube 3. Each clamp 6 is used to fix the self-floating tube 1, the outer air outlet tube 2 and the inner air outlet tube 3 into a whole. The self-floating tube 1 has the ability to sink when filled with water and float when filled with air. Therefore, after the bubble curtain device is assembled on the water surface, it sinks to the bottom of the water by injecting water into the self-floating tube 1 of each curtain segment. After the construction is completed, it floats on the water surface by inflating the self-floating tube 1 of each curtain segment. The outer air outlet tube 2 and the inner air outlet tube 3 are used to output air to form a bubble curtain. Since the outer air outlet tube 2 and the inner air outlet tube 3 are arranged inside and outside, the bubble curtain device can form two bubble curtains located on the inner and outer sides, which can better limit and reduce the noise generated by pile driving construction.

[0019] The self-floating and sinking pipe 1, the outer venting hose 2, and the inner venting hose 3 are all selected as hoses, and the diameter of the self-floating and sinking pipe 1 is larger than the diameters of both the outer venting hose 2 and the inner venting hose 3. In this embodiment, the clamp 6 is composed of three clamp units spliced ​​together, with the top of the lower clamp unit fixedly connected to the bottom of the two upper clamp units, such as... Figure 3 As shown, the top of the lower clamp unit is welded and fixed to the bottom of the two upper clamp units, so that the three clamp units are spliced ​​together to form a whole. The lower clamp unit has a clamp arm that extends downward. Opening the clamp arm, inserting the self-floating tube 1 into the interior, and closing and locking the clamp arm will fix the self-floating tube 1. Similarly, the upper clamp unit has a clamp arm that extends upward. Opening the clamp arm, inserting the outer vent hose 2 and the inner vent hose 3 into the interior, and closing and locking the clamp arm will fix the outer vent hose 2 and the inner vent hose 3.

[0020] In this embodiment, a connecting ring 9 for connecting the pull cable is provided on the outer side of the clamp 6 located in the middle. During the deployment and use of this bubble curtain device, it typically requires assistance from nearby anchor boats or other small vessels. The connecting ring 9 of the curtain segment is connected to the auxiliary vessel via a pull cable, thus enabling the auxiliary vessel to tow and move the curtain segment, achieving the deployment, displacement, and shape maintenance of this bubble curtain device. Figure 3 As shown, the connecting ring 9 is welded and installed on the clamp arm of the outer air outlet hose 2.

[0021] A pipe end 7 is installed at the end of the self-floating tube 1 and the air outlet hose (including the outer air outlet hose 2 and the inner air outlet hose 3). The function of the pipe end 7 is to fix the ends of the self-floating tube 1, the outer air outlet hose 2 and the inner air outlet hose 3 into a whole, and to be used for the sequential connection of curtain segments, air inflation and water injection.

[0022] Please see Figure 4 and Figure 5 It can be seen that: The pipe end 7 includes an end block 7-1. An air tube port 7-4 is located on the upper side of the end block 7-1, and a submerged tube port 7-5 is located on the lower side. The end of the air outlet hose is inserted into and sealed to the air tube port 7-4, and the end of the self-floating submerged tube 1 is inserted into and sealed to the submerged tube port 7-5. A top interface 7-3, communicating with the air tube port 7-4, is located at the top of the end block 7-1, and a back interface 7-6, communicating with the submerged tube port 7-5, is located on the back of the end block 7-1. The top interface 7-3 and one end of the back interface 7-6 are connected to the air supply pipe 10, and the other end of the back interface 7-6 is connected to the water supply pipe 11.

[0023] Specifically, the pipe end 7 has two air pipe ports 7-4, and both air pipe ports are simultaneously connected to the top interface 7-3 through a channel located inside the end block 7-1. The submerged pipe port 7-5 is connected to the back interface 7-6 through a channel located inside the end block 7-1. The air supply pipe 10 is connected to the air compressor on the auxiliary vessel. High-pressure air enters the outer air outlet hose 2 and the inner air outlet hose 3 through the air supply pipe 10, and then is discharged through the air hole 4 of the air outlet hose. The air bubbles float upward in the water, thus forming a bubble curtain around the construction area to limit the propagation of noise. The water supply pipe 11 is connected to the high-pressure water pump on the auxiliary vessel. The high-pressure water pump pumps the surrounding seawater into the self-floating submerged pipe 1 through the water supply pipe 11. This is the water injection process. At this time, the rubber ball 5 inside the self-floating submerged pipe 1 moves to one end. When the rubber ball 5 moves to the end, the water injection process ends. During this process, the curtain segment sinks to the bottom of the water due to the water injection in the self-floating submerged pipe 1. After the piling work at the current pile position 12 is completed, air is injected into the self-floating tube 1 through the shipborne air compressor and air supply pipe 10. This is the inflation process. At this time, the rubber ball 5 in the self-floating tube 1 moves to the other end. When the rubber ball 5 moves to the end, the inflation process ends. During this process, the curtain segment floats on the water surface due to the inflation of the self-floating tube 1.

[0024] In this embodiment, a back plate 7-2 with a connection hole is provided on the back of the end block 7-1 of the tube end 7. A connecting plate 8 is provided between adjacent curtain segments. A connection hole is provided at the end of the connecting plate 8. The end of the connecting plate 8 overlaps with the back plate 7-2 and is connected by bolts that pass through the connection hole, so as to realize the sequential splicing connection of the curtain segments.

[0025] Application method: Initially, the curtain segments are self-floating and towed by auxiliary vessels in the construction area, stopping when they reach a specific position outside the construction area. Then, multiple curtain segments are sequentially spliced ​​together using connecting plates (8) to form a ring structure. Figure 1The curtain segment shown is three in number. It can be assumed that the number of curtain segments is determined by the length of each individual segment and the size of the construction area. Typically, the length of a single curtain segment can be set to around 300m. Therefore, 2-4 curtain segments can reasonably enclose the pile positions 12 and the pile driving equipment 13 within the current construction site. As mentioned earlier, to ensure sufficient noise reduction, multiple bubble curtain devices can be installed from the inside out to form multiple bubble curtains.

[0026] After constructing a ring-shaped bubble curtain device on the water surface, water is injected into each curtain segment using a high-pressure water pump from an auxiliary vessel. Eventually, the bubble curtain device sinks to the bottom of the water. Then, an air compressor from the auxiliary vessel supplies air to each curtain segment. The compressed air is discharged through the air holes of the outer air outlet hose 2 and the inner air outlet hose 3 and floats upward in the water, thus forming a bubble curtain to reduce noise transmission. During the pile driving construction, the continuity of the aforementioned bubble curtain should be ensured. After piling, the air compressor stops supplying air to the outer air outlet hose 2 and the inner air outlet hose 3. Instead, the air compressor is used to inflate the self-floating tube 1. At the same time, the water in the self-floating tube 1 is squeezed out (the water returns to the high-pressure water pump through the water supply pipe 11 and is discharged from the outlet of the high-pressure water pump). After inflation, the curtain segment floats on the water surface. Then, the connecting plate 8 between adjacent curtain segments can be disassembled, and the bubble curtain device can be disassembled into multiple parts. Then, the auxiliary vessel tows each curtain segment to the next construction area, and the above process is repeated.

Claims

1. A bubble curtain device for noise reduction during offshore piling, characterized in that: Multiple curtain segments are sequentially spliced ​​to form a ring structure located outside the construction area, and adjacent curtain segments are detachably connected; the curtain segment includes a self-floating tube (1) located at the bottom with a rubber ball (5) inside, and an air outlet hose with an air hole (4) above the self-floating tube (1). The self-floating tube (1) and the air outlet hose are fixedly connected by multiple clamps (6); a pipe end (7) is installed at the end of the self-floating tube (1) and the air outlet hose. The pipe end (7) includes an end block (7-1), and an air pipe port (7-4) is provided on the upper side of the end block (7-1). The lower part is provided with a sinking pipe port (7-5), the end of the air outlet hose is inserted into the air pipe port (7-4) and sealed, the end of the self-floating sinking pipe (1) is inserted into the sinking pipe port (7-5) and sealed, the top of the end block (7-1) is provided with a top interface (7-3) that communicates with the air pipe port (7-4), the back of the end block (7-1) is provided with a back interface (7-6) that communicates with the sinking pipe port (7-5), the top interface (7-3) and the back interface (7-6) at one end are connected to the air supply pipe (10), and the back interface (7-6) at the other end is connected to the water supply pipe (11).

2. The marine piling noise reduction bubble curtain device as described in claim 1, characterized in that: The air outlet hose includes an outer air outlet hose (2) and an inner air outlet hose (3). The self-floating tube (1), the outer air outlet hose (2) and the inner air outlet hose (3) are fixedly connected by the clamps (6) located at the left, middle and right positions respectively.

3. The marine piling noise reduction bubble curtain device as described in claim 2, characterized in that: The tube end (7) has two tracheal ports (7-4) and the two tracheal ports (7-4) are simultaneously connected to the top interface (7-3) through a channel located inside the end block (7-1). The sinking tube port (7-5) is connected to the back interface (7-6) through a channel located inside the end block (7-1).

4. The marine piling noise reduction bubble curtain device as described in claim 3, characterized in that: in The back of the end block (7-1) of the pipe end (7) is provided with a back plate (7-2) with a connection hole. A connecting plate (8) is provided between adjacent curtain segments. A connection hole is provided at the end of the connecting plate (8). The end of the connecting plate (8) overlaps with the back plate (7-2) and is connected by a bolt that passes through the connection hole.

5. The marine piling noise reduction bubble curtain device as described in claim 4, characterized in that: The clamp (6) is made up of three clamp units spliced ​​together, with the top of the lower clamp unit fixedly connected to the bottom of the two upper clamp units.

6. The marine piling noise reduction bubble curtain device as described in claim 5, characterized in that: A connecting ring (9) for connecting the cable is provided on the outside of the clamp (6) located in the middle.

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