CN112967706A - Bubble curtain/foam board composite device for underwater sound absorption and noise reduction method - Google Patents
Bubble curtain/foam board composite device for underwater sound absorption and noise reduction method Download PDFInfo
- Publication number
- CN112967706A CN112967706A CN202110269457.2A CN202110269457A CN112967706A CN 112967706 A CN112967706 A CN 112967706A CN 202110269457 A CN202110269457 A CN 202110269457A CN 112967706 A CN112967706 A CN 112967706A
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- Prior art keywords
- foam board
- foam
- noise reduction
- bubble curtain
- curtain
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- 239000006260 foam Substances 0.000 title claims abstract description 78
- 230000009467 reduction Effects 0.000 title claims abstract description 51
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000006261 foam material Substances 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000006262 metallic foam Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 5
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a bubble curtain/foam board composite noise reduction method for underwater sound absorption and noise reduction, which enables bubbles to move upwards between two opposite porous surfaces of two foam boards to form a bubble curtain, thereby realizing the combination of bubble curtain noise reduction and foam material noise reduction; by means of the porous surface of the foam board, bubbles can be continuously refined through collision of the foam board and the foam board in the rising process of the bubbles, and therefore the sound absorption and noise reduction effects of the bubble curtain are further enhanced; the cystosepiment can play the supporting role to the bubble curtain, weakens air current, rivers to the influence of bubble curtain, stabilizes the noise reduction effect.
Description
Technical Field
The invention belongs to the technical field of sound absorption and noise reduction, and particularly relates to a bubble curtain/foam board composite device for underwater sound absorption and noise reduction and a noise reduction method.
Background
A large amount of noise can be generated in the underwater construction operation, high-frequency vibration of equipment, ship navigation and missile launching processes, and particularly, the noise is reduced in the installation and operation of offshore wind power equipment, oil exploration, actual combat drilling and other processes so as to reduce the harm of the noise to marine organisms and the health of surrounding personnel.
The currently common underwater noise reduction method mainly comprises the following steps: (1) the sleeve with the silencing material is arranged on the vibration device which is used as the main source of noise, but the sleeve is high in price and only suitable for part of specific devices in the construction process, the application range is small, and the installation process has great limitation; (2) the sound insulation device is arranged at the periphery of the noise source, so that the noise is reduced to be transmitted to the outside, but the noise reduction effect is not ideal; (3) set up the bubble curtain in noise source periphery, through arranging water piping system on the seabed surface, air pump forms a confined bubble curtain with the air introduction pipe, the bubble that rises from mouth of pipe department, because the density difference of air and water, the bubble curtain produces high damping loss and scattering to the noise propagation to take the noise out the surface of water and discharge and fall the noise in the air, but the bubble curtain receives rivers and air current influence easily, has the unstable problem of effect.
Disclosure of Invention
In order to improve the noise reduction effect, expand the application range and solve the problem of unstable noise reduction effect, the invention discloses a bubble curtain/foam board composite device for underwater sound absorption and noise reduction and a noise reduction method.
The bubble curtain/foam board composite noise reduction method for underwater sound absorption and noise reduction enables bubbles to move upwards between two opposite porous surfaces of two foam boards to form a bubble curtain, and the combination of bubble curtain noise reduction and foam material noise reduction is achieved.
The bubble curtain/foam board composite device for underwater sound absorption and noise reduction comprises two foam boards which are oppositely distributed and connected into a whole, wherein a space for accommodating a pipeline system connected with a gas compression pump above a water surface is reserved between two opposite porous surfaces of the two foam boards so as to allow bubbles to move upwards to form a bubble curtain when noise is generated.
Furthermore, the pipeline system comprises an air supply pipeline connected with the air compression pump above the water surface and an air injection pipeline communicated with the air supply pipeline and positioned at the bottom of the space, and the air injection pipeline is provided with an injection hole along the length direction for injecting air into the water to form bubbles.
Furthermore, the two foam plates form a spliced wall body.
Furthermore, the two foam boards form an integrated wall body.
Further, any one of the two foam boards is selected from one of an organic foam board, a plant fiber foam board, a metal foam board and a ceramic foam board.
The invention relates to a bubble curtain/foam board composite device for underwater sound absorption and noise reduction and a noise reduction method, which are combined, and have the following beneficial effects:
(1) the bubble curtain and the foam material have good sound absorption and noise reduction effects, and the sound absorption and noise reduction effects can be further improved after the bubble curtain and the foam material are compounded;
(2) by means of the porous surface of the foam board, bubbles can be continuously refined through collision of the foam board and the foam board in the rising process of the bubbles, and therefore the sound absorption and noise reduction effects of the bubble curtain are further enhanced;
(3) the foam board can support the bubble curtain, weaken the influence of air flow and water flow on the bubble curtain and stabilize the noise reduction effect;
(4) the bubble curtain/foam board composite device can be arranged at the periphery of a noise source and is suitable for various underwater noise reduction environments, such as underwater construction operation, high-frequency vibration of equipment, ship navigation and missile launching;
(6) the bubble curtain/foam board composite device can be used for manufacturing underwater sound absorption and noise reduction devices in different shapes by splicing or processing a plurality of foam boards, and the noise reduction requirements of noise sources in different shapes are met.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following detailed description of preferred embodiments is given by way of example.
Drawings
FIG. 1 is a schematic view of a first embodiment of a bubble curtain/foam board composite device for underwater sound absorption and noise reduction according to the present invention;
FIG. 2 is a schematic view of the embodiment of FIG. 1 with one side of the foam sheet removed;
FIG. 3 is a side schematic view of the embodiment of FIG. 1;
FIG. 4 is a schematic illustration of the embodiment of FIG. 1 in a noise reduction state;
FIG. 5 is a schematic view of a second embodiment of the bubble curtain/foam board composite device for underwater sound absorption and noise reduction according to the present invention;
FIG. 6 is a schematic view of the embodiment of FIG. 5 with the outer foam sheet removed;
fig. 7 is a side schematic view of the embodiment shown in fig. 5.
Wherein, the foam board comprises 1: a square foam board, 2: a pipeline system, 2-1: an air injection pipeline, 2-2: an air supply pipeline, 3: a bubble curtain, 4: a gas compression pump, 5: a connecting piece, 6: water and 7: a cylindrical foam board.
Detailed Description
The invention relates to a bubble curtain/foam board composite noise reduction method for underwater sound absorption and noise reduction, which enables bubbles to move upwards between two opposite porous surfaces of two foam boards to form a bubble curtain, and realizes the combination of bubble curtain noise reduction and foam board noise reduction. The following embodiments are specific apparatuses for implementing the composite noise reduction method.
Referring to fig. 1 to 3, a first embodiment of a bubble curtain/foam board composite device for underwater sound absorption and noise reduction according to the present invention is shown. The wall comprises two square foam plates 1 and a pipeline system 2, wherein the two square foam plates are oppositely arranged and assembled into a spliced wall body by adopting four connecting pieces 5, and a gap is reserved between two opposite porous surfaces of the two square foam plates; the pipeline system is arranged in the interval and specifically comprises an air supply pipeline 2-2 extending along the vertical direction and an air injection pipeline 2-1 located at the bottom of the interval and extending along the horizontal direction, the upper end of the air supply pipeline is communicated with an air compression pump 4 located above the water surface, the lower end of the air supply pipeline is communicated with the air injection pipeline, the air injection pipeline is provided with a plurality of spray holes along the length direction, and the optimal positions of the spray holes are as follows: towards the porous surface of the square foam board.
Any one of the two square foam boards is selected from one of an organic foam board, a plant fiber foam board, a metal foam board and a ceramic foam board, namely the two foam boards can be selected from the same material or different materials; the pore diameter of the foam board is 0.1-2mm, and the thickness of the foam board is 0.5-50 mm; the connecting piece is any one of a gluing part, a riveting part and a screw and nut assembling part.
Referring to fig. 4, the present embodiment is suitable for various underwater noise reduction environments, for example, for underwater piling operation, a piling area and a non-piling area are separated after a plurality of spliced walls are assembled, and the specific manner may be: the spliced walls are limited on the periphery of the piling pipe through the floating blocks after being assembled along the circumferential direction, or the spliced walls are connected to the outer wall of the piling pipe through the support frame after being assembled along the circumferential direction, or the spliced walls are isolated on one side after being assembled along the length direction. Before the construction, start the gas compression pump, the air current is through the air supply pipe, spout into aquatic from the orifice behind the air injection pipeline and form the bubble, the bubble rises in the interval between two square form cystosepiments and forms the bubble curtain, the foam material that will have better sound absorption noise reduction effect falls and makes an uproar, the bubble curtain falls and makes an uproar and compound, further promote noise reduction, and the bubble can constantly strike with the porous surface of square form cystosepiment at the in-process that rises, obtain further cutting, refine, promote the noise reduction effect and the holistic noise reduction effect of bubble curtain, square form cystosepiment can play the fixed stay effect to the bubble curtain simultaneously, stabilize the bubble curtain, weaken the air current, rivers are to the influence of bubble curtain.
Of course, in other embodiments of the present invention, other forms of spliced walls can be obtained by using foam boards with other shapes (such as arc-shaped) instead of square foam boards according to actual needs.
Referring to fig. 5 to 7, a second embodiment of the bubble curtain/foam board composite device for underwater sound absorption and noise reduction according to the present invention is shown. The embodiment comprises two cylindrical foam boards 8 and a pipeline system, wherein the cylindrical foam board with the small diameter is positioned in the cylindrical foam board with the large diameter and assembled into an integrated wall body through a connecting piece 5, and an annular interval is reserved between the porous surfaces of the two cylindrical foam boards; the pipeline system comprises an air supply pipeline extending along the vertical direction and an air injection pipeline located at the bottom of the annular interval and extending along the horizontal direction, the upper end of the air supply pipeline is communicated with an air compression pump located above the water surface, the lower end of the air supply pipeline penetrates through the two cylindrical foam plates and then is communicated with the air injection pipeline, and the air injection pipeline is provided with a plurality of spray holes along the length direction of the air injection pipeline.
In order to meet the noise reduction requirement of the cylindrical noise source, the foam boards are designed to be cylindrical, and the integrated wall body formed by the two cylindrical foam boards can be independently limited to the periphery of the noise source. In view of the foregoing design considerations, in other embodiments of the present invention, the foam board may be designed to be spherical, arc, square, hood, umbrella or other special shapes according to the shape of the noise source, so as to obtain other forms of integrated wall.
Of course, in another embodiment of the present invention, the cylindrical foam board described in the second embodiment may be rotated by 90 °, an annular air injection duct may be disposed at the bottom of the annular space, and the lower end of the air supply duct may communicate with the air injection duct after passing through the annular space. Furthermore, a plurality of annular air injection pipelines can be arranged in the annular interval from bottom to top according to the length of the cylindrical foam board.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the design and scope of the technical solutions of the present invention.
Claims (6)
1. A composite noise-reducing method for underwater sound-absorbing noise-reducing bubble curtain/foam board features that the bubbles move upward between two opposite porous surfaces of two foam boards to form a bubble curtain, which can reduce noise and foam material.
2. A bubble curtain/foam board composite device for underwater sound absorption and noise reduction is characterized by comprising two foam boards which are oppositely distributed and connected into a whole, wherein a pipeline system used for accommodating a gas compression pump connected with the water surface is reserved between two opposite porous surfaces of the two foam boards so as to allow bubbles to move upwards to form a bubble curtain when noise is generated.
3. A bubble curtain/foam board assembly as claimed in claim 2, wherein the duct system comprises a gas supply duct connected to a gas compressor above the water surface, and a gas injection duct communicating with the gas supply duct and located at the bottom of the compartment, the gas injection duct being provided with a nozzle along its length for injecting gas into the water to form bubbles.
4. The curtain/foam board composite device for underwater sound absorption and noise reduction according to claim 2, wherein the two foam boards form a spliced wall body.
5. The curtain/foam board composite device for underwater sound absorption and noise reduction of claim 2, wherein the two foam boards form an integrated wall.
6. A curtain/foam board composite device for underwater sound absorption and noise reduction according to any one of claims 2 to 5, wherein any one of the two foam boards is selected from one of an organic foam board, a plant fiber foam board, a metal foam board and a ceramic foam board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269457.2A CN112967706A (en) | 2021-03-12 | 2021-03-12 | Bubble curtain/foam board composite device for underwater sound absorption and noise reduction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269457.2A CN112967706A (en) | 2021-03-12 | 2021-03-12 | Bubble curtain/foam board composite device for underwater sound absorption and noise reduction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112967706A true CN112967706A (en) | 2021-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110269457.2A Pending CN112967706A (en) | 2021-03-12 | 2021-03-12 | Bubble curtain/foam board composite device for underwater sound absorption and noise reduction method |
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| Country | Link |
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| CN (1) | CN112967706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116195544A (en) * | 2023-03-07 | 2023-06-02 | 中国海洋大学 | Aquaculture seedling raising barrel capable of eliminating noise |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU966258A1 (en) * | 1981-04-10 | 1982-10-15 | Предприятие П/Я М-5836 | Aerodynamic noise silencer |
| US20020080681A1 (en) * | 2000-11-20 | 2002-06-27 | Dreyer Harold B. | Boom system and its use to attenuate underwater sound or shock wave transmission |
| EP2441892A2 (en) * | 2010-10-14 | 2012-04-18 | Bernhard Weyres | Device and method for inserting piles into the sea bed |
| KR20130122211A (en) * | 2012-04-30 | 2013-11-07 | 주식회사 나루이엠에스 | Procting method for marine life |
| EP2677082A1 (en) * | 2012-06-21 | 2013-12-25 | Cay Grunau Hydrotechnik Ingenieurbüro Grunau e.K. | Bubble curtain generating device |
| EP2746462A2 (en) * | 2012-12-21 | 2014-06-25 | Maritime Offshore Group GmbH | Device and method for reducing the sound emissions when pile driving at sea |
| KR101689630B1 (en) * | 2016-08-22 | 2016-12-26 | 한국해양과학기술원 | Silt protector |
| CN206888299U (en) * | 2017-05-22 | 2018-01-16 | 江苏建设控股集团有限公司 | A kind of Pierced Aluminum Plank curtain wall |
| CN206921468U (en) * | 2017-06-20 | 2018-01-23 | 屈科 | Stop the device of sound transmission with Bubble Heavy Curtain under water |
| CN110512604A (en) * | 2019-08-21 | 2019-11-29 | 武汉理工大学 | Conical Shells With air curtain underwater pile driving denoising device is truncated in array |
| KR102060726B1 (en) * | 2019-01-29 | 2019-12-30 | 임대규 | Underwater barrier |
-
2021
- 2021-03-12 CN CN202110269457.2A patent/CN112967706A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU966258A1 (en) * | 1981-04-10 | 1982-10-15 | Предприятие П/Я М-5836 | Aerodynamic noise silencer |
| US20020080681A1 (en) * | 2000-11-20 | 2002-06-27 | Dreyer Harold B. | Boom system and its use to attenuate underwater sound or shock wave transmission |
| EP2441892A2 (en) * | 2010-10-14 | 2012-04-18 | Bernhard Weyres | Device and method for inserting piles into the sea bed |
| KR20130122211A (en) * | 2012-04-30 | 2013-11-07 | 주식회사 나루이엠에스 | Procting method for marine life |
| EP2677082A1 (en) * | 2012-06-21 | 2013-12-25 | Cay Grunau Hydrotechnik Ingenieurbüro Grunau e.K. | Bubble curtain generating device |
| EP2746462A2 (en) * | 2012-12-21 | 2014-06-25 | Maritime Offshore Group GmbH | Device and method for reducing the sound emissions when pile driving at sea |
| KR101689630B1 (en) * | 2016-08-22 | 2016-12-26 | 한국해양과학기술원 | Silt protector |
| CN206888299U (en) * | 2017-05-22 | 2018-01-16 | 江苏建设控股集团有限公司 | A kind of Pierced Aluminum Plank curtain wall |
| CN206921468U (en) * | 2017-06-20 | 2018-01-23 | 屈科 | Stop the device of sound transmission with Bubble Heavy Curtain under water |
| KR102060726B1 (en) * | 2019-01-29 | 2019-12-30 | 임대규 | Underwater barrier |
| CN110512604A (en) * | 2019-08-21 | 2019-11-29 | 武汉理工大学 | Conical Shells With air curtain underwater pile driving denoising device is truncated in array |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116195544A (en) * | 2023-03-07 | 2023-06-02 | 中国海洋大学 | Aquaculture seedling raising barrel capable of eliminating noise |
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