CN110670591A - Novel pile noise reduction device - Google Patents
Novel pile noise reduction device Download PDFInfo
- Publication number
- CN110670591A CN110670591A CN201910920923.1A CN201910920923A CN110670591A CN 110670591 A CN110670591 A CN 110670591A CN 201910920923 A CN201910920923 A CN 201910920923A CN 110670591 A CN110670591 A CN 110670591A
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- Prior art keywords
- noise reduction
- reduction mechanism
- pressure pipe
- cone structure
- opening end
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- 230000009467 reduction Effects 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 229920000728 polyester Polymers 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 229920004934 Dacron® Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/005—Sound absorbing accessories in piling
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pipe Accessories (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a novel piling noise reduction device which comprises a noise reduction mechanism, an underwater air bag arranged from top to bottom of the noise reduction mechanism and a ballast device arranged at the second end part of the noise reduction mechanism, wherein the noise reduction mechanism is of a cone structure with a large opening at one end and a small opening at the other end, the underwater air bag provides buoyancy for the cone structure, the large opening end of the cone structure is connected with the ballast device, the noise reduction mechanism comprises a spiral high-pressure pipe, the high-pressure rubber pipe extends to the large opening end of the noise reduction mechanism from a small-opening end disc of the noise reduction mechanism in a spiral mode, a plurality of air holes are formed in the side wall of the high-pressure pipe, the high-pressure pipe is connected with an air compressor, and the side wall of the noise reduction mechanism. The noise reduction device forms a bubble curtain and forms a noise reduction mechanism together with the elastic small ball, so that the noise reduction effect is achieved.
Description
Technical Field
The invention relates to an underwater noise reduction device, in particular to a novel underwater piling noise reduction device.
Background
At present, as clean energy is more and more advocated, popularized and utilized, and the offshore wind turbine pile driving technology is more and more emphasized, offshore wind turbine pile driving engineering is mainly distributed in offshore coastal areas rich in wind energy and works in shallow sea areas with the water depth of 10 ~ 30 m.
However, the impact type pile driving noise generated by the offshore wind turbine pile driving influences normal living activities of human beings, causes various serious noise pollution to the marine environment and influences the living environment of marine organisms. Noise reduction measures for offshore wind turbine piling are imperative.
Disclosure of Invention
The invention provides a piling noise reduction device for effectively reducing noise and eliminating noise for the operation under the sea, wherein the noise reduction device forms a bubble curtain and simultaneously forms a noise elimination mechanism together with an elastic ball, so that the noise elimination effect is achieved.
The technical scheme adopted by the invention is as follows: the utility model provides a novel pile noise reduction device, includes noise reduction mechanism, sets up at noise reduction mechanism from the top gasbag under water and sets up the ballast device at noise reduction mechanism second tip, noise reduction mechanism is the centrum structure that the big one end opening of one end opening is little, centrum structure from the top connects gasbag under water, the macrostoma end of centrum structure is connected ballast device, noise reduction mechanism is including being the high-pressure line that the spiral spirals, the high-pressure line is revolved by noise reduction mechanism's osculum end dish and is extended to noise reduction mechanism's macrostoma end, follows the high-pressure line lateral wall is provided with a plurality of gas pockets, the high-pressure line is connected with air compressor, noise reduction mechanism lateral wall is provided with the elasticity bobble.
Further, the vertebral body structure is a hollow vertebral body.
Furthermore, the pore diameter of the air hole on the high-pressure pipe is gradually increased from the position close to the small opening end of the cone structure to the position close to the large opening end of the cone structure.
Further, the high-pressure pipe is a high-pressure rubber pipe.
Furthermore, the plurality of layers of high-voltage pipes are connected through polyester ropes, the polyester ropes are provided with a plurality of polyester ropes, and each polyester rope extends from the small opening end of the cone structure to the large opening end of the cone structure.
Furthermore, the elastic small balls are arranged on the polyester rope through steel wires.
Further, a check valve for preventing water from flowing into the high-pressure pipe is arranged on the air hole.
Furthermore, a groove for winding the polyester rope is formed in the outer wall of the high-pressure pipe, and the polyester rope is wound on the high-pressure pipe and then fixed to the high-pressure pipe through a fastening piece.
The beneficial effects produced by the invention comprise: the noise reduction device forms a large amount of bubbles around a cone structure through the high-pressure pipe and the air compressor, the bubbles continuously rise to form dense curtain-shaped bubbles, and further form a water-blocking hollow air wall. Elastic ball 5 is pe polymer original paper, can fully control the resonant frequency of pellet component, produce resonance etc. in being close to the effective frequency range of impact noise to reduce in succession and impact noise.
Drawings
FIG. 1 is a schematic view showing the structure of a noise reducing device according to the present invention;
FIG. 2 is a top plan view of the noise reducing device of the present invention;
FIG. 3 is a diagram showing the connection relationship between the elastic small balls and the polyester ropes;
FIG. 4 is a drawing showing the connection relationship between the steel wire and the elastic bead in the present invention;
FIG. 5 is a diagram showing the connection relationship between a high-pressure tube and a polyester rope according to the present invention;
FIG. 6 is a view showing a connection relationship between a clamp and a high-pressure pipe according to the present invention;
FIG. 7 is a block diagram of the clamp of the present invention;
in the figure, 1, an underwater air bag, 2, a ballast device, 3, a high-pressure pipe, 301, a groove, 4, an air hole, 5, an elastic small ball, 6, a polyester rope, 7, a pile, 8, an air compressor, 9, a steel wire, 10, a hoop, 101, a hole, 102 and a bolt are shown.
Detailed Description
The present invention is explained in further detail below with reference to the drawings and the specific embodiments, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
As shown in fig. 1, the pile driving 7 noise reduction device of the invention comprises a noise reduction mechanism, an underwater air bag 1 arranged on the noise reduction mechanism from top to bottom and a ballast device 2 arranged on the second end part of the noise reduction mechanism, wherein the noise reduction mechanism is a cone structure with a large opening at one end and a small opening at the other end, which can also be called a horn structure, the large opening end is communicated with the small opening end, the large opening end and the small opening end are not sealed, the cone structure is connected with the underwater air bag 1 from top to bottom, the large opening end of the cone structure is connected with the ballast device 2, and the underwater air bag 1 is arranged from top to bottom, so that the buoyancy provided in the sinking process is increased, the gravity of the ballast device is greater than the whole buoyancy, and the buoyancy is enough to support the whole structure after the whole structure sinks into water. Ballast arrangement 2 can guarantee that macrostoma end subsides downwards, noise reduction mechanism is including being the high-pressure line 3 that the spiral spirals, the high-pressure rubber tube is coiled by noise reduction mechanism's osculum end and is extended to noise reduction mechanism's macrostoma end, be provided with a plurality of gas pockets 4 along 3 lateral walls of high-pressure line, high-pressure line 3 is connected with air compressor 8, air compressor 8 carries high-pressure gas in to high-pressure line 3, and discharge through gas pocket 4 on 3 lateral walls of high-pressure line, form the bubble in aqueous, a large amount of bubbles form the bubble wall, form the bubble curtain. In order to allow air bubbles to form around the site of the pile 7, the cone structure is configured as a hollow cone, into which the pile 7 can be placed.
The noise reduction mechanism is formed by a spiral high-pressure pipe 3 and a polyester rope 6, the high-pressure pipe 3 spirally extends from top to bottom, spiral rings formed by spiral are gradually increased, the polyester rope 6 is connected with the high-pressure pipes 3 of the circles, so that the high-pressure pipe 3 keeps a spiral shape, the high-pressure pipe 3 and the polyester rope 6 enable the side wall of a cone structure to form a net-shaped structure, and the structure ensures that water freely enters and exits from the inside and the outside of the cone. Connect the high strength dacron rope 6 of each layer rubber tube of heliciform and flare-out, support protection heliciform structure, dacron rope 6 is provided with a plurality of, extends to the macrostoma end after connecting a plurality of rings of high-pressure tube 3 by the microcephaly end, and dacron rope 6 connects and forms a kind of network structure, and when the bubble curtain rises, this kind of network structure wraps up the bubble curtain to avoid it to receive the influence of wave and the unstability that leads to, protection bubble curtain. When the pneumatic pile driver is used, the noise reduction mechanism is covered on the periphery of the working position of the pile driver 7, the pile driver 7 works to generate noise, the high-pressure rubber pipe is connected with the air compressor 8, the air compressor 8 starts to work, and gas is driven into the high-pressure pipe 3 connected with the air compressor 8.
As shown in fig. 2, which is a plan view of the perforated high-pressure rubber hose, in the process of piling 7, the noise emitted by the pile 7 in the process of being near the water surface and the sea bottom is large, the noise is large at the position closer to the depth of the pile 7, the bottom of the noise reduction mechanism is wide, the formed bubble curtain is thick, and the noise reduction effect is more obvious. The spiral high-pressure rubber pipe has the advantage that when all bubbles are emitted together, a plurality of layers of bubble curtains can be formed, and the noise near the water surface can be further reduced. From top to bottom, the diameter of the air hole 4 is larger, on one hand, the air hole 4 at the beginning is smaller, so that the air compressor 8 can drive air into the high-pressure rubber pipe to avoid insufficient air transmission, on the other hand, the downward air holes are larger, the air holes are gradually attenuated in the rising process of the air holes, the large air holes are favorable for maintaining the stability of the formation of the air bubble curtain, and the air bubbles are not scattered and extinguished too fast in the rising process. The bubbles, because of their lower density, rise gradually upwards from the depth of the pile 7, forming a curtain-like enclosure around the entire underwater pile 7, since the water-shocking waves propagate through the aqueous medium, which is generally regarded as an incompressible continuous medium, with very limited wave absorption and attenuation. When water shock wave passes through the air bubble curtain wall, the kinetic energy of shock wave crest is converted into internal energy of compressed air bubble due to the compressible property of air, and after the wave crest passes, the internal energy stored in the compressed air bubble is gradually released in the expansion process of the air bubble, so that the water shock wave pressure is attenuated, the sound wave can also cause the vibration resonance of the air bubble to cause the air bubble to break, and the sound wave energy is also consumed, thereby playing the role of noise reduction.
The high-pressure pipe 3 in this embodiment is a high-pressure hose. The air hole 4 with a larger lower end of the high-pressure rubber pipe is provided with the check valve, so that the influence of water pressure on bubbles is avoided, as shown in a figure 3-3, the side view of the check valve connected to the air hole 4 is shown, the hexagonal nut and the thread carved on the hexagonal nut are hollow in the center and cannot block the air hole 4, and gas is discharged from the valve and enters the outside water.
Referring to fig. 3 to 4, the elastic beads 5 in this embodiment are disposed on the polyester rope 6 through steel wires 9. The copper wire is walked around winding polyester line and is the 8 font, with the welding of both ends copper line head to make elasticity bobble 5 connect on the polyester line, elasticity bobble 5 is pe polymer original paper, can fully control the resonant frequency of bobble component, be close to the effective frequency range of impact noise and produce resonance etc. in order to reduce in succession and impact noise.
As shown in fig. 5, a groove 301 for winding the polyester rope 6 is provided on the outer wall of the high-pressure pipe 3, and the polyester rope 6 is wound around the high-pressure pipe 3 and then fixed to the high-pressure pipe 3 by a fastening member. Specifically, as shown in fig. 6, a clamp 10 (i.e., a fastener) connecting structure is arranged between the dacron rope 6 and the high-pressure rubber pipe, a plurality of circles of dacron ropes 6 are wound in a rolling groove formed in the high-pressure rubber pipe in advance, then the clamp 10 is sleeved in the rolling groove, the clamp 10 structure is formed by connecting two steel semicircular rings adapting to the rolling groove, the two rings are clamped into the rolling groove, a screw nut or a bolt 102 is tied, the clamp 10 structure can tightly connect the ropes to the high-pressure rubber pipe, and as shown in fig. 6-7, the clamp 10 structure is a side view and a front view of the clamp 10 ring, two holes are formed in the clamp ring, the dacron ropes 6 can pass through the two holes, so that the next.
The invention has the innovation points that a combined underwater bubble curtain is combined with an underwater elastic net, the defect that the bubble curtain is easily influenced by sea tides and the effect is not stably influenced is overcome, the stable bubble curtain also overcomes the defect that the elastic small balls 5 are poor in high-frequency noise effect, the whole noise frequency domain is covered comprehensively, a three-dimensional and multidimensional noise reduction scheme is realized, the adaptation to various noise environments is ensured, and the contribution is made to promoting the protection of marine environments.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.
Claims (8)
1. The utility model provides a novel pile noise reduction device which characterized in that: the noise reduction mechanism comprises a noise reduction mechanism body, an air bag arranged on the noise reduction mechanism body and a ballast device arranged at the second end portion of the noise reduction mechanism body, wherein the noise reduction mechanism body is of a cone structure with a large opening at one end and a small opening at the other end, the air bag provides buoyancy for the cone structure, the large opening end of the cone structure is connected with the ballast device, the noise reduction mechanism body comprises a high-pressure pipe which is spirally coiled, the high-pressure rubber pipe is spirally extended to the large opening end of the noise reduction mechanism body through the small opening end of the noise reduction mechanism body, a plurality of air holes are formed in the side wall of the high-pressure pipe, the high-pressure pipe is connected with an air.
2. A novel piling noise reduction device according to claim 1, characterized in that: the vertebral body structure is a hollow vertebral body.
3. A novel piling noise reduction device according to claim 1, characterized in that: the pore diameter of the air hole on the high-pressure pipe is gradually increased from the position close to the small opening end of the cone structure to the position close to the large opening end of the cone structure.
4. A novel piling noise reduction device according to claim 1, characterized in that: the high-pressure pipe is a high-pressure rubber pipe.
5. A novel piling noise reduction device according to claim 1, characterized in that: the high-voltage tubes are connected through polyester ropes, the polyester ropes are provided with a plurality of strips, and each polyester rope extends from the small opening end of the cone structure to the large opening end of the cone structure.
6. The new piling noise reduction device according to claim 1 or 5, wherein: the elastic small balls are arranged on the polyester rope through steel wires.
7. A novel piling noise reduction device according to claim 1, characterized in that: and the air hole is provided with a one-way valve for preventing water from flowing into the high-pressure pipe.
8. A novel piling noise reduction device according to claim 1, characterized in that: the outer wall of the high-pressure pipe is provided with a groove for winding the polyester rope, and the polyester rope is wound on the high-pressure pipe and then fixed on the high-pressure pipe through a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920923.1A CN110670591B (en) | 2019-09-26 | 2019-09-26 | Novel pile noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920923.1A CN110670591B (en) | 2019-09-26 | 2019-09-26 | Novel pile noise reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110670591A true CN110670591A (en) | 2020-01-10 |
| CN110670591B CN110670591B (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910920923.1A Expired - Fee Related CN110670591B (en) | 2019-09-26 | 2019-09-26 | Novel pile noise reduction device |
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| Country | Link |
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| CN (1) | CN110670591B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463634A (en) * | 2021-09-03 | 2021-10-01 | 南通中舟风电工程技术有限公司 | Silencing device of marine hydraulic pile hammer |
| TWI764833B (en) * | 2021-09-17 | 2022-05-11 | 國立臺灣大學 | Underwater noise mitigation module |
| US20230059977A1 (en) * | 2021-08-23 | 2023-02-23 | Arnold Jäger Holding GmbH | Hose arrangement for creating a bubble curtain in bodies of water |
| EP4141172A1 (en) * | 2021-08-23 | 2023-03-01 | Arnold Jäger Holding GmbH | Hose arrangement for creating a bubble curtain in water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422506A (en) * | 2012-05-24 | 2013-12-04 | Naruems株式会 | Method for reducing underwater noise by underwater sound damper |
| CN103774681A (en) * | 2014-01-27 | 2014-05-07 | 广东明阳风电产业集团有限公司 | Novel steel cofferdam device for eliminating and reducing steel pipe pile noise in offshore wind power building |
| JP2017160615A (en) * | 2016-03-07 | 2017-09-14 | 五洋建設株式会社 | Blow noise reduction method of steel pipe pile |
| CN109065012A (en) * | 2018-08-16 | 2018-12-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Netted acoustic screen for underwater pile driving |
-
2019
- 2019-09-26 CN CN201910920923.1A patent/CN110670591B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422506A (en) * | 2012-05-24 | 2013-12-04 | Naruems株式会 | Method for reducing underwater noise by underwater sound damper |
| CN103774681A (en) * | 2014-01-27 | 2014-05-07 | 广东明阳风电产业集团有限公司 | Novel steel cofferdam device for eliminating and reducing steel pipe pile noise in offshore wind power building |
| JP2017160615A (en) * | 2016-03-07 | 2017-09-14 | 五洋建設株式会社 | Blow noise reduction method of steel pipe pile |
| CN109065012A (en) * | 2018-08-16 | 2018-12-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Netted acoustic screen for underwater pile driving |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230059977A1 (en) * | 2021-08-23 | 2023-02-23 | Arnold Jäger Holding GmbH | Hose arrangement for creating a bubble curtain in bodies of water |
| EP4141172A1 (en) * | 2021-08-23 | 2023-03-01 | Arnold Jäger Holding GmbH | Hose arrangement for creating a bubble curtain in water |
| US11846080B2 (en) * | 2021-08-23 | 2023-12-19 | Arnold Jäger Holding GmbH | Hose arrangement for creating a bubble curtain in bodies of water |
| CN113463634A (en) * | 2021-09-03 | 2021-10-01 | 南通中舟风电工程技术有限公司 | Silencing device of marine hydraulic pile hammer |
| CN113463634B (en) * | 2021-09-03 | 2021-11-26 | 南通中舟风电工程技术有限公司 | Silencing device of marine hydraulic pile hammer |
| TWI764833B (en) * | 2021-09-17 | 2022-05-11 | 國立臺灣大學 | Underwater noise mitigation module |
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| Publication number | Publication date |
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| CN110670591B (en) | 2020-12-01 |
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